Merge pull request #3377 from Ultimaker/refactoring_machine_manager

CURA-4606 Refactoring MachineManager

cura/BuildVolume.py

@@ -937,8 +937,8 @@ class BuildVolume(SceneNode):
     #   stack.
     #
     #   \return A sequence of setting values, one for each extruder.
-    def _getSettingFromAllExtruders(self, setting_key, property = "value"):
+    def _getSettingFromAllExtruders(self, setting_key):
-        all_values = ExtruderManager.getInstance().getAllExtruderSettings(setting_key, property)
+        all_values = ExtruderManager.getInstance().getAllExtruderSettings(setting_key, "value")
         all_types = ExtruderManager.getInstance().getAllExtruderSettings(setting_key, "type")
         for i in range(len(all_values)):
             if not all_values[i] and (all_types[i] == "int" or all_types[i] == "float"):
@@ -951,7 +951,7 @@ class BuildVolume(SceneNode):
     #   not part of the collision radius, such as bed adhesion (skirt/brim/raft)
     #   and travel avoid distance.
     def _getEdgeDisallowedSize(self):
-        if not self._global_container_stack:
+        if not self._global_container_stack or not self._global_container_stack.extruders:
             return 0
 
         container_stack = self._global_container_stack

cura/CuraApplication.py

@@ -2,6 +2,8 @@
 # Cura is released under the terms of the LGPLv3 or higher.
 #Type hinting.
 from typing import Dict
+
+from PyQt5.QtCore import QObject
 from PyQt5.QtNetwork import QLocalServer
 from PyQt5.QtNetwork import QLocalSocket
 
@@ -52,13 +54,23 @@ from UM.Settings.SettingDefinition import SettingDefinition, DefinitionPropertyT
 from UM.Settings.ContainerRegistry import ContainerRegistry
 from UM.Settings.SettingFunction import SettingFunction
 from cura.Settings.MachineNameValidator import MachineNameValidator
-from cura.Settings.ProfilesModel import ProfilesModel
+
-from cura.Settings.MaterialsModel import MaterialsModel
+from cura.Machines.Models.BuildPlateModel import BuildPlateModel
-from cura.Settings.QualityAndUserProfilesModel import QualityAndUserProfilesModel
+from cura.Machines.Models.NozzleModel import NozzleModel
+from cura.Machines.Models.QualityProfilesDropDownMenuModel import QualityProfilesDropDownMenuModel
+from cura.Machines.Models.CustomQualityProfilesDropDownMenuModel import CustomQualityProfilesDropDownMenuModel
+
+from cura.Machines.Models.MultiBuildPlateModel import MultiBuildPlateModel
+
+from cura.Machines.Models.MaterialManagementModel import MaterialManagementModel
+from cura.Machines.Models.GenericMaterialsModel import GenericMaterialsModel
+from cura.Machines.Models.BrandMaterialsModel import BrandMaterialsModel
+
 from cura.Settings.SettingInheritanceManager import SettingInheritanceManager
-from cura.Settings.UserProfilesModel import UserProfilesModel
 from cura.Settings.SimpleModeSettingsManager import SimpleModeSettingsManager
 
+from cura.Machines.VariantManager import VariantManager
+from cura.Machines.Models.QualityManagementModel import QualityManagementModel
 
 from . import PlatformPhysics
 from . import BuildVolume
@@ -71,17 +83,14 @@ from . import CameraImageProvider
 from . import MachineActionManager
 
 from cura.Settings.MachineManager import MachineManager
-from cura.Settings.MaterialManager import MaterialManager
 from cura.Settings.ExtruderManager import ExtruderManager
 from cura.Settings.UserChangesModel import UserChangesModel
 from cura.Settings.ExtrudersModel import ExtrudersModel
-from cura.Settings.ContainerSettingsModel import ContainerSettingsModel
 from cura.Settings.MaterialSettingsVisibilityHandler import MaterialSettingsVisibilityHandler
-from cura.Settings.QualitySettingsModel import QualitySettingsModel
+from cura.Machines.Models.QualitySettingsModel import QualitySettingsModel
 from cura.Settings.ContainerManager import ContainerManager
 
 from cura.ObjectsModel import ObjectsModel
-from cura.BuildPlateModel import BuildPlateModel
 
 from PyQt5.QtCore import QUrl, pyqtSignal, pyqtProperty, QEvent, Q_ENUMS
 from UM.FlameProfiler import pyqtSlot
@@ -216,6 +225,7 @@ class CuraApplication(QtApplication):
         self._material_manager = None
         self._object_manager = None
         self._build_plate_model = None
+        self._multi_build_plate_model = None
         self._setting_inheritance_manager = None
         self._simple_mode_settings_manager = None
         self._cura_scene_controller = None
@@ -233,6 +243,8 @@ class CuraApplication(QtApplication):
         if kwargs["parsed_command_line"].get("trigger_early_crash", False):
             assert not "This crash is triggered by the trigger_early_crash command line argument."
 
+        self._variant_manager = None
+
         self.default_theme = "cura-light"
 
         self.setWindowIcon(QIcon(Resources.getPath(Resources.Images, "cura-icon.png")))
@@ -287,21 +299,25 @@ class CuraApplication(QtApplication):
         # Since they are empty, they should never be serialized and instead just programmatically created.
         # We need them to simplify the switching between materials.
         empty_container = ContainerRegistry.getInstance().getEmptyInstanceContainer()
+        self.empty_container = empty_container
 
         empty_definition_changes_container = copy.deepcopy(empty_container)
         empty_definition_changes_container.setMetaDataEntry("id", "empty_definition_changes")
         empty_definition_changes_container.addMetaDataEntry("type", "definition_changes")
         ContainerRegistry.getInstance().addContainer(empty_definition_changes_container)
+        self.empty_definition_changes_container = empty_definition_changes_container
 
         empty_variant_container = copy.deepcopy(empty_container)
         empty_variant_container.setMetaDataEntry("id", "empty_variant")
         empty_variant_container.addMetaDataEntry("type", "variant")
         ContainerRegistry.getInstance().addContainer(empty_variant_container)
+        self.empty_variant_container = empty_variant_container
 
         empty_material_container = copy.deepcopy(empty_container)
         empty_material_container.setMetaDataEntry("id", "empty_material")
         empty_material_container.addMetaDataEntry("type", "material")
         ContainerRegistry.getInstance().addContainer(empty_material_container)
+        self.empty_material_container = empty_material_container
 
         empty_quality_container = copy.deepcopy(empty_container)
         empty_quality_container.setMetaDataEntry("id", "empty_quality")
@@ -310,12 +326,14 @@ class CuraApplication(QtApplication):
         empty_quality_container.addMetaDataEntry("type", "quality")
         empty_quality_container.addMetaDataEntry("supported", False)
         ContainerRegistry.getInstance().addContainer(empty_quality_container)
+        self.empty_quality_container = empty_quality_container
 
         empty_quality_changes_container = copy.deepcopy(empty_container)
         empty_quality_changes_container.setMetaDataEntry("id", "empty_quality_changes")
         empty_quality_changes_container.addMetaDataEntry("type", "quality_changes")
         empty_quality_changes_container.addMetaDataEntry("quality_type", "not_supported")
         ContainerRegistry.getInstance().addContainer(empty_quality_changes_container)
+        self.empty_quality_changes_container = empty_quality_changes_container
 
         with ContainerRegistry.getInstance().lockFile():
             ContainerRegistry.getInstance().loadAllMetadata()
@@ -381,6 +399,9 @@ class CuraApplication(QtApplication):
 
         self.getCuraSceneController().setActiveBuildPlate(0)  # Initialize
 
+        self._quality_profile_drop_down_menu_model = None
+        self._custom_quality_profile_drop_down_menu_model = None
+
         CuraApplication.Created = True
 
     @pyqtSlot(str, result = str)
@@ -523,8 +544,6 @@ class CuraApplication(QtApplication):
             has_user_interaction = True
         return has_user_interaction
 
-    onDiscardOrKeepProfileChangesClosed = pyqtSignal()  # Used to notify other managers that the dialog was closed
-
     @pyqtSlot(str)
     def discardOrKeepProfileChangesClosed(self, option):
         if option == "discard":
@@ -547,7 +566,6 @@ class CuraApplication(QtApplication):
                 user_global_container.update()
 
         # notify listeners that quality has changed (after user selected discard or keep)
-        self.onDiscardOrKeepProfileChangesClosed.emit()
         self.getMachineManager().activeQualityChanged.emit()
 
     @pyqtSlot(int)
@@ -723,6 +741,20 @@ class CuraApplication(QtApplication):
     def run(self):
         self.preRun()
 
+        container_registry = ContainerRegistry.getInstance()
+        self._variant_manager = VariantManager(container_registry)
+        self._variant_manager.initialize()
+
+        from cura.Machines.MaterialManager import MaterialManager
+        self._material_manager = MaterialManager(container_registry, parent = self)
+        self._material_manager.initialize()
+
+        from cura.Machines.QualityManager import QualityManager
+        self._quality_manager = QualityManager(container_registry, parent = self)
+        self._quality_manager.initialize()
+
+        self._machine_manager = MachineManager(self)
+
         # Check if we should run as single instance or not
         self._setUpSingleInstanceServer()
 
@@ -816,7 +848,7 @@ class CuraApplication(QtApplication):
 
     def getMachineManager(self, *args) -> MachineManager:
         if self._machine_manager is None:
-            self._machine_manager = MachineManager.createMachineManager()
+            self._machine_manager = MachineManager(self)
         return self._machine_manager
 
     def getExtruderManager(self, *args):
@@ -824,20 +856,32 @@ class CuraApplication(QtApplication):
             self._extruder_manager = ExtruderManager.createExtruderManager()
         return self._extruder_manager
 
+    def getVariantManager(self, *args):
+        return self._variant_manager
+
+    @pyqtSlot(result = QObject)
     def getMaterialManager(self, *args):
-        if self._material_manager is None:
-            self._material_manager = MaterialManager.createMaterialManager()
         return self._material_manager
 
+    @pyqtSlot(result = QObject)
+    def getQualityManager(self, *args):
+        return self._quality_manager
+
     def getObjectsModel(self, *args):
         if self._object_manager is None:
             self._object_manager = ObjectsModel.createObjectsModel()
         return self._object_manager
 
+    @pyqtSlot(result = QObject)
+    def getMultiBuildPlateModel(self, *args):
+        if self._multi_build_plate_model is None:
+            self._multi_build_plate_model = MultiBuildPlateModel(self)
+        return self._multi_build_plate_model
+
+    @pyqtSlot(result = QObject)
     def getBuildPlateModel(self, *args):
         if self._build_plate_model is None:
-            self._build_plate_model = BuildPlateModel.createBuildPlateModel()
+            self._build_plate_model = BuildPlateModel(self)
-
         return self._build_plate_model
 
     def getCuraSceneController(self, *args):
@@ -875,6 +919,16 @@ class CuraApplication(QtApplication):
     def getPrintInformation(self):
         return self._print_information
 
+    def getQualityProfilesDropDownMenuModel(self, *args, **kwargs):
+        if self._quality_profile_drop_down_menu_model is None:
+            self._quality_profile_drop_down_menu_model = QualityProfilesDropDownMenuModel(self)
+        return self._quality_profile_drop_down_menu_model
+
+    def getCustomQualityProfilesDropDownMenuModel(self, *args, **kwargs):
+        if self._custom_quality_profile_drop_down_menu_model is None:
+            self._custom_quality_profile_drop_down_menu_model = CustomQualityProfilesDropDownMenuModel(self)
+        return self._custom_quality_profile_drop_down_menu_model
+
     ##  Registers objects for the QML engine to use.
     #
     #   \param engine The QML engine.
@@ -889,27 +943,34 @@ class CuraApplication(QtApplication):
 
         qmlRegisterUncreatableType(CuraApplication, "Cura", 1, 0, "ResourceTypes", "Just an Enum type")
 
-        qmlRegisterSingletonType(CuraSceneController, "Cura", 1, 2, "SceneController", self.getCuraSceneController)
+        qmlRegisterSingletonType(CuraSceneController, "Cura", 1, 0, "SceneController", self.getCuraSceneController)
         qmlRegisterSingletonType(ExtruderManager, "Cura", 1, 0, "ExtruderManager", self.getExtruderManager)
         qmlRegisterSingletonType(MachineManager, "Cura", 1, 0, "MachineManager", self.getMachineManager)
-        qmlRegisterSingletonType(MaterialManager, "Cura", 1, 0, "MaterialManager", self.getMaterialManager)
         qmlRegisterSingletonType(SettingInheritanceManager, "Cura", 1, 0, "SettingInheritanceManager", self.getSettingInheritanceManager)
-        qmlRegisterSingletonType(SimpleModeSettingsManager, "Cura", 1, 2, "SimpleModeSettingsManager", self.getSimpleModeSettingsManager)
+        qmlRegisterSingletonType(SimpleModeSettingsManager, "Cura", 1, 0, "SimpleModeSettingsManager", self.getSimpleModeSettingsManager)
         qmlRegisterSingletonType(MachineActionManager.MachineActionManager, "Cura", 1, 0, "MachineActionManager", self.getMachineActionManager)
 
-        qmlRegisterSingletonType(ObjectsModel, "Cura", 1, 2, "ObjectsModel", self.getObjectsModel)
+        qmlRegisterSingletonType(ObjectsModel, "Cura", 1, 0, "ObjectsModel", self.getObjectsModel)
-        qmlRegisterSingletonType(BuildPlateModel, "Cura", 1, 2, "BuildPlateModel", self.getBuildPlateModel)
+        qmlRegisterType(BuildPlateModel, "Cura", 1, 0, "BuildPlateModel")
+        qmlRegisterType(MultiBuildPlateModel, "Cura", 1, 0, "MultiBuildPlateModel")
         qmlRegisterType(InstanceContainer, "Cura", 1, 0, "InstanceContainer")
         qmlRegisterType(ExtrudersModel, "Cura", 1, 0, "ExtrudersModel")
-        qmlRegisterType(ContainerSettingsModel, "Cura", 1, 0, "ContainerSettingsModel")
+
-        qmlRegisterSingletonType(ProfilesModel, "Cura", 1, 0, "ProfilesModel", ProfilesModel.createProfilesModel)
+        qmlRegisterType(GenericMaterialsModel, "Cura", 1, 0, "GenericMaterialsModel")
-        qmlRegisterType(MaterialsModel, "Cura", 1, 0, "MaterialsModel")
+        qmlRegisterType(BrandMaterialsModel, "Cura", 1, 0, "BrandMaterialsModel")
-        qmlRegisterType(QualityAndUserProfilesModel, "Cura", 1, 0, "QualityAndUserProfilesModel")
+        qmlRegisterType(MaterialManagementModel, "Cura", 1, 0, "MaterialManagementModel")
-        qmlRegisterType(UserProfilesModel, "Cura", 1, 0, "UserProfilesModel")
+        qmlRegisterType(QualityManagementModel, "Cura", 1, 0, "QualityManagementModel")
+
+        qmlRegisterSingletonType(QualityProfilesDropDownMenuModel, "Cura", 1, 0,
+                                 "QualityProfilesDropDownMenuModel", self.getQualityProfilesDropDownMenuModel)
+        qmlRegisterSingletonType(CustomQualityProfilesDropDownMenuModel, "Cura", 1, 0,
+                                 "CustomQualityProfilesDropDownMenuModel", self.getCustomQualityProfilesDropDownMenuModel)
+        qmlRegisterType(NozzleModel, "Cura", 1, 0, "NozzleModel")
+
         qmlRegisterType(MaterialSettingsVisibilityHandler, "Cura", 1, 0, "MaterialSettingsVisibilityHandler")
         qmlRegisterType(QualitySettingsModel, "Cura", 1, 0, "QualitySettingsModel")
         qmlRegisterType(MachineNameValidator, "Cura", 1, 0, "MachineNameValidator")
-        qmlRegisterType(UserChangesModel, "Cura", 1, 1, "UserChangesModel")
+        qmlRegisterType(UserChangesModel, "Cura", 1, 0, "UserChangesModel")
         qmlRegisterSingletonType(ContainerManager, "Cura", 1, 0, "ContainerManager", ContainerManager.createContainerManager)
 
         # As of Qt5.7, it is necessary to get rid of any ".." in the path for the singleton to work.
@@ -991,7 +1052,7 @@ class CuraApplication(QtApplication):
         count = 0
         scene_bounding_box = None
         is_block_slicing_node = False
-        active_build_plate = self.getBuildPlateModel().activeBuildPlate
+        active_build_plate = self.getMultiBuildPlateModel().activeBuildPlate
         for node in DepthFirstIterator(self.getController().getScene().getRoot()):
             if (
                 not issubclass(type(node), CuraSceneNode) or
@@ -1240,7 +1301,7 @@ class CuraApplication(QtApplication):
     @pyqtSlot()
     def arrangeAll(self):
         nodes = []
-        active_build_plate = self.getBuildPlateModel().activeBuildPlate
+        active_build_plate = self.getMultiBuildPlateModel().activeBuildPlate
         for node in DepthFirstIterator(self.getController().getScene().getRoot()):
             if not isinstance(node, SceneNode):
                 continue
@@ -1389,7 +1450,7 @@ class CuraApplication(QtApplication):
         group_decorator = GroupDecorator()
         group_node.addDecorator(group_decorator)
         group_node.addDecorator(ConvexHullDecorator())
-        group_node.addDecorator(BuildPlateDecorator(self.getBuildPlateModel().activeBuildPlate))
+        group_node.addDecorator(BuildPlateDecorator(self.getMultiBuildPlateModel().activeBuildPlate))
         group_node.setParent(self.getController().getScene().getRoot())
         group_node.setSelectable(True)
         center = Selection.getSelectionCenter()
@@ -1534,7 +1595,7 @@ class CuraApplication(QtApplication):
         arrange_objects_on_load = (
             not Preferences.getInstance().getValue("cura/use_multi_build_plate") or
             not Preferences.getInstance().getValue("cura/not_arrange_objects_on_load"))
-        target_build_plate = self.getBuildPlateModel().activeBuildPlate if arrange_objects_on_load else -1
+        target_build_plate = self.getMultiBuildPlateModel().activeBuildPlate if arrange_objects_on_load else -1
 
         root = self.getController().getScene().getRoot()
         fixed_nodes = []

cura/Machines/ContainerNode.py

@@ -0,0 +1,49 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from typing import Optional
+
+from collections import OrderedDict
+
+from UM.Logger import Logger
+from UM.Settings.InstanceContainer import InstanceContainer
+
+
+##
+# A metadata / container combination. Use getContainer() to get the container corresponding to the metadata.
+#
+# ContainerNode is a multi-purpose class. It has two main purposes:
+#  1. It encapsulates an InstanceContainer. It contains that InstanceContainer's
+#          - metadata (Always)
+#          - container (lazy-loaded when needed)
+#  2. It also serves as a node in a hierarchical InstanceContainer lookup table/tree.
+#     This is used in Variant, Material, and Quality Managers.
+#
+class ContainerNode:
+    __slots__ = ("metadata", "container", "children_map")
+
+    def __init__(self, metadata: Optional[dict] = None):
+        self.metadata = metadata
+        self.container = None
+        self.children_map = OrderedDict()
+
+    def getChildNode(self, child_key: str) -> Optional["ContainerNode"]:
+        return self.children_map.get(child_key)
+
+    def getContainer(self) -> "InstanceContainer":
+        if self.metadata is None:
+            raise RuntimeError("Cannot get container for a ContainerNode without metadata")
+
+        if self.container is None:
+            container_id = self.metadata["id"]
+            Logger.log("i", "Lazy-loading container [%s]", container_id)
+            from UM.Settings.ContainerRegistry import ContainerRegistry
+            container_list = ContainerRegistry.getInstance().findInstanceContainers(id = container_id)
+            if not container_list:
+                raise RuntimeError("Failed to lazy-load container [%s], cannot find it" % container_id)
+            self.container = container_list[0]
+
+        return self.container
+
+    def __str__(self) -> str:
+        return "%s[%s]" % (self.__class__.__name__, self.metadata.get("id"))

cura/Machines/MaterialGroup.py

@@ -0,0 +1,26 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+
+#
+# A MaterialGroup represents a group of material InstanceContainers that are derived from a single material profile.
+# The main InstanceContainer which has the ID of the material profile file name is called the "root_material". For
+# example: "generic_abs" is the root material (ID) of "generic_abs_ultimaker3" and "generic_abs_ultimaker3_AA_0.4",
+# and "generic_abs_ultimaker3" and "generic_abs_ultimaker3_AA_0.4" are derived materials of "generic_abs".
+#
+# Using "generic_abs" as an example, the MaterialGroup for "generic_abs" will contain the following information:
+#  - name: "generic_abs", root_material_id
+#  - root_material_node: MaterialNode of "generic_abs"
+#  - derived_material_node_list: A list of MaterialNodes that are derived from "generic_abs",
+#                                so "generic_abs_ultimaker3", "generic_abs_ultimaker3_AA_0.4", etc.
+#
+class MaterialGroup:
+    __slots__ = ("name", "root_material_node", "derived_material_node_list")
+
+    def __init__(self, name: str):
+        self.name = name
+        self.root_material_node = None
+        self.derived_material_node_list = []
+
+    def __str__(self) -> str:
+        return "%s[%s]" % (self.__class__.__name__, self.name)

cura/Machines/MaterialManager.py

@@ -0,0 +1,479 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from collections import defaultdict, OrderedDict
+import copy
+import uuid
+from typing import Optional, TYPE_CHECKING
+
+from PyQt5.Qt import QTimer, QObject, pyqtSignal, pyqtSlot
+
+from UM.Application import Application
+from UM.Logger import Logger
+from UM.Settings.ContainerRegistry import ContainerRegistry
+from UM.Settings.SettingFunction import SettingFunction
+from UM.Util import parseBool
+
+from .MaterialNode import MaterialNode
+from .MaterialGroup import MaterialGroup
+
+if TYPE_CHECKING:
+    from cura.Settings.GlobalStack import GlobalStack
+
+
+#
+# MaterialManager maintains a number of maps and trees for material lookup.
+# The models GUI and QML use are now only dependent on the MaterialManager. That means as long as the data in
+# MaterialManager gets updated correctly, the GUI models should be updated correctly too, and the same goes for GUI.
+#
+# For now, updating the lookup maps and trees here is very simple: we discard the old data completely and recreate them
+# again. This means the update is exactly the same as initialization. There are performance concerns about this approach
+# but so far the creation of the tables and maps is very fast and there is no noticeable slowness, we keep it like this
+# because it's simple.
+#
+class MaterialManager(QObject):
+
+    materialsUpdated = pyqtSignal()  # Emitted whenever the material lookup tables are updated.
+
+    def __init__(self, container_registry, parent = None):
+        super().__init__(parent)
+        self._application = Application.getInstance()
+        self._container_registry = container_registry  # type: ContainerRegistry
+
+        self._fallback_materials_map = dict()  # material_type -> generic material metadata
+        self._material_group_map = dict()  # root_material_id -> MaterialGroup
+        self._diameter_machine_variant_material_map = dict()  # approximate diameter str -> dict(machine_definition_id -> MaterialNode)
+
+        # We're using these two maps to convert between the specific diameter material id and the generic material id
+        # because the generic material ids are used in qualities and definitions, while the specific diameter material is meant
+        # i.e. generic_pla -> generic_pla_175
+        self._material_diameter_map = defaultdict(dict)  # root_material_id -> approximate diameter str -> root_material_id for that diameter
+        self._diameter_material_map = dict()  # material id including diameter (generic_pla_175) -> material root id (generic_pla)
+
+        # This is used in Legacy UM3 send material function and the material management page.
+        self._guid_material_groups_map = defaultdict(list)  # GUID -> a list of material_groups
+
+        # The machine definition ID for the non-machine-specific materials.
+        # This is used as the last fallback option if the given machine-specific material(s) cannot be found.
+        self._default_machine_definition_id = "fdmprinter"
+        self._default_approximate_diameter_for_quality_search = "3"
+
+        # When a material gets added/imported, there can be more than one InstanceContainers. In those cases, we don't
+        # want to react on every container/metadata changed signal. The timer here is to buffer it a bit so we don't
+        # react too many time.
+        self._update_timer = QTimer(self)
+        self._update_timer.setInterval(300)
+        self._update_timer.setSingleShot(True)
+        self._update_timer.timeout.connect(self._updateMaps)
+
+        self._container_registry.containerMetaDataChanged.connect(self._onContainerMetadataChanged)
+        self._container_registry.containerAdded.connect(self._onContainerMetadataChanged)
+        self._container_registry.containerRemoved.connect(self._onContainerMetadataChanged)
+
+    def initialize(self):
+        # Find all materials and put them in a matrix for quick search.
+        material_metadata_list = self._container_registry.findContainersMetadata(type = "material")
+
+        self._material_group_map = dict()
+
+        # Map #1
+        #    root_material_id -> MaterialGroup
+        for material_metadata in material_metadata_list:
+            material_id = material_metadata["id"]
+            # We don't store empty material in the lookup tables
+            if material_id == "empty_material":
+                continue
+
+            root_material_id = material_metadata.get("base_file")
+            if root_material_id not in self._material_group_map:
+                self._material_group_map[root_material_id] = MaterialGroup(root_material_id)
+            group = self._material_group_map[root_material_id]
+
+            # We only add root materials here
+            if material_id == root_material_id:
+                group.root_material_node = MaterialNode(material_metadata)
+            else:
+                new_node = MaterialNode(material_metadata)
+                group.derived_material_node_list.append(new_node)
+        # Order this map alphabetically so it's easier to navigate in a debugger
+        self._material_group_map = OrderedDict(sorted(self._material_group_map.items(), key = lambda x: x[0]))
+
+        # Map #1.5
+        #    GUID -> material group list
+        self._guid_material_groups_map = defaultdict(list)
+        for root_material_id, material_group in self._material_group_map.items():
+            guid = material_group.root_material_node.metadata["GUID"]
+            self._guid_material_groups_map[guid].append(material_group)
+
+        # Map #2
+        # Lookup table for material type -> fallback material metadata, only for read-only materials
+        grouped_by_type_dict = dict()
+        for root_material_id, material_node in self._material_group_map.items():
+            if not self._container_registry.isReadOnly(root_material_id):
+                continue
+            material_type = material_node.root_material_node.metadata["material"]
+            if material_type not in grouped_by_type_dict:
+                grouped_by_type_dict[material_type] = {"generic": None,
+                                                       "others": []}
+            brand = material_node.root_material_node.metadata["brand"]
+            if brand.lower() == "generic":
+                to_add = True
+                if material_type in grouped_by_type_dict:
+                    diameter = material_node.root_material_node.metadata.get("approximate_diameter")
+                    if diameter != self._default_approximate_diameter_for_quality_search:
+                        to_add = False  # don't add if it's not the default diameter
+                if to_add:
+                    grouped_by_type_dict[material_type] = material_node.root_material_node.metadata
+        self._fallback_materials_map = grouped_by_type_dict
+
+        # Map #3
+        # There can be multiple material profiles for the same material with different diameters, such as "generic_pla"
+        # and "generic_pla_175". This is inconvenient when we do material-specific quality lookup because a quality can
+        # be for either "generic_pla" or "generic_pla_175", but not both. This map helps to get the correct material ID
+        # for quality search.
+        self._material_diameter_map = defaultdict(dict)
+        self._diameter_material_map = dict()
+
+        # Group the material IDs by the same name, material, brand, and color but with different diameters.
+        material_group_dict = dict()
+        keys_to_fetch = ("name", "material", "brand", "color")
+        for root_material_id, machine_node in self._material_group_map.items():
+            if not self._container_registry.isReadOnly(root_material_id):
+                continue
+
+            root_material_metadata = machine_node.root_material_node.metadata
+
+            key_data = []
+            for key in keys_to_fetch:
+                key_data.append(root_material_metadata.get(key))
+            key_data = tuple(key_data)
+
+            if key_data not in material_group_dict:
+                material_group_dict[key_data] = dict()
+            approximate_diameter = root_material_metadata.get("approximate_diameter")
+            material_group_dict[key_data][approximate_diameter] = root_material_metadata["id"]
+
+        # Map [root_material_id][diameter] -> root_material_id for this diameter
+        for data_dict in material_group_dict.values():
+            for root_material_id1 in data_dict.values():
+                if root_material_id1 in self._material_diameter_map:
+                    continue
+                diameter_map = data_dict
+                for root_material_id2 in data_dict.values():
+                    self._material_diameter_map[root_material_id2] = diameter_map
+
+            default_root_material_id = data_dict.get(self._default_approximate_diameter_for_quality_search)
+            if default_root_material_id is None:
+                default_root_material_id = list(data_dict.values())[0]  # no default diameter present, just take "the" only one
+            for root_material_id in data_dict.values():
+                self._diameter_material_map[root_material_id] = default_root_material_id
+
+        # Map #4
+        #    "machine" -> "variant_name" -> "root material ID" -> specific material InstanceContainer
+        # Construct the "machine" -> "variant" -> "root material ID" -> specific material InstanceContainer
+        self._diameter_machine_variant_material_map = dict()
+        for material_metadata in material_metadata_list:
+            # We don't store empty material in the lookup tables
+            if material_metadata["id"] == "empty_material":
+                continue
+
+            root_material_id = material_metadata["base_file"]
+            definition = material_metadata["definition"]
+            approximate_diameter = material_metadata["approximate_diameter"]
+
+            if approximate_diameter not in self._diameter_machine_variant_material_map:
+                self._diameter_machine_variant_material_map[approximate_diameter] = {}
+
+            machine_variant_material_map = self._diameter_machine_variant_material_map[approximate_diameter]
+            if definition not in machine_variant_material_map:
+                machine_variant_material_map[definition] = MaterialNode()
+
+            machine_node = machine_variant_material_map[definition]
+            variant_name = material_metadata.get("variant_name")
+            if not variant_name:
+                # if there is no variant, this material is for the machine, so put its metadata in the machine node.
+                machine_node.material_map[root_material_id] = MaterialNode(material_metadata)
+            else:
+                # this material is variant-specific, so we save it in a variant-specific node under the
+                # machine-specific node
+                if variant_name not in machine_node.children_map:
+                    machine_node.children_map[variant_name] = MaterialNode()
+
+                variant_node = machine_node.children_map[variant_name]
+                if root_material_id not in variant_node.material_map:
+                    variant_node.material_map[root_material_id] = MaterialNode(material_metadata)
+                else:
+                    # Sanity check: make sure we don't have duplicated variant-specific materials for the same machine
+                    raise RuntimeError("Found duplicate variant name [%s] for machine [%s] in material [%s]" %
+                                       (variant_name, definition, material_metadata["id"]))
+
+        self.materialsUpdated.emit()
+
+    def _updateMaps(self):
+        self.initialize()
+
+    def _onContainerMetadataChanged(self, container):
+        self._onContainerChanged(container)
+
+    def _onContainerChanged(self, container):
+        container_type = container.getMetaDataEntry("type")
+        if container_type != "material":
+            return
+
+        # update the maps
+        self._update_timer.start()
+
+    def getMaterialGroup(self, root_material_id: str) -> Optional[MaterialGroup]:
+        return self._material_group_map.get(root_material_id)
+
+    def getRootMaterialIDForDiameter(self, root_material_id: str, approximate_diameter: str) -> str:
+        return self._material_diameter_map.get(root_material_id).get(approximate_diameter, root_material_id)
+
+    def getRootMaterialIDWithoutDiameter(self, root_material_id: str) -> str:
+        return self._diameter_material_map.get(root_material_id)
+
+    def getMaterialGroupListByGUID(self, guid: str) -> Optional[list]:
+        return self._guid_material_groups_map.get(guid)
+
+    #
+    # Return a dict with all root material IDs (k) and ContainerNodes (v) that's suitable for the given setup.
+    #
+    def getAvailableMaterials(self, machine_definition_id: str, extruder_variant_name: Optional[str],
+                              diameter: float) -> dict:
+        # round the diameter to get the approximate diameter
+        rounded_diameter = str(round(diameter))
+        if rounded_diameter not in self._diameter_machine_variant_material_map:
+            Logger.log("i", "Cannot find materials with diameter [%s] (rounded to [%s])", diameter, rounded_diameter)
+            return dict()
+
+        # If there are variant materials, get the variant material
+        machine_variant_material_map = self._diameter_machine_variant_material_map[rounded_diameter]
+        machine_node = machine_variant_material_map.get(machine_definition_id)
+        default_machine_node = machine_variant_material_map.get(self._default_machine_definition_id)
+        variant_node = None
+        if extruder_variant_name is not None and machine_node is not None:
+            variant_node = machine_node.getChildNode(extruder_variant_name)
+
+        nodes_to_check = [variant_node, machine_node, default_machine_node]
+
+        # Fallback mechanism of finding materials:
+        #  1. variant-specific material
+        #  2. machine-specific material
+        #  3. generic material (for fdmprinter)
+        material_id_metadata_dict = dict()
+        for node in nodes_to_check:
+            if node is not None:
+                for material_id, node in node.material_map.items():
+                    if material_id not in material_id_metadata_dict:
+                        material_id_metadata_dict[material_id] = node
+
+        return material_id_metadata_dict
+
+    #
+    # A convenience function to get available materials for the given machine with the extruder position.
+    #
+    def getAvailableMaterialsForMachineExtruder(self, machine: "GlobalStack",
+                                                extruder_stack: "ExtruderStack") -> Optional[dict]:
+        machine_definition_id = machine.definition.getId()
+        variant_name = None
+        if extruder_stack.variant.getId() != "empty_variant":
+            variant_name = extruder_stack.variant.getName()
+        diameter = extruder_stack.approximateMaterialDiameter
+
+        # Fetch the available materials (ContainerNode) for the current active machine and extruder setup.
+        return self.getAvailableMaterials(machine_definition_id, variant_name, diameter)
+
+    #
+    # Gets MaterialNode for the given extruder and machine with the given material name.
+    # Returns None if:
+    #  1. the given machine doesn't have materials;
+    #  2. cannot find any material InstanceContainers with the given settings.
+    #
+    def getMaterialNode(self, machine_definition_id: str, extruder_variant_name: Optional[str],
+                        diameter: float, root_material_id: str) -> Optional["InstanceContainer"]:
+        # round the diameter to get the approximate diameter
+        rounded_diameter = str(round(diameter))
+        if rounded_diameter not in self._diameter_machine_variant_material_map:
+            Logger.log("i", "Cannot find materials with diameter [%s] (rounded to [%s]) for root material id [%s]",
+                       diameter, rounded_diameter, root_material_id)
+            return None
+
+        # If there are variant materials, get the variant material
+        machine_variant_material_map = self._diameter_machine_variant_material_map[rounded_diameter]
+        machine_node = machine_variant_material_map.get(machine_definition_id)
+        variant_node = None
+
+        # Fallback for "fdmprinter" if the machine-specific materials cannot be found
+        if machine_node is None:
+            machine_node = machine_variant_material_map.get(self._default_machine_definition_id)
+        if machine_node is not None and extruder_variant_name is not None:
+            variant_node = machine_node.getChildNode(extruder_variant_name)
+
+        # Fallback mechanism of finding materials:
+        #  1. variant-specific material
+        #  2. machine-specific material
+        #  3. generic material (for fdmprinter)
+        nodes_to_check = [variant_node, machine_node,
+                          machine_variant_material_map.get(self._default_machine_definition_id)]
+
+        material_node = None
+        for node in nodes_to_check:
+            if node is not None:
+                material_node = node.material_map.get(root_material_id)
+                if material_node:
+                    break
+
+        return material_node
+
+    #
+    # Used by QualityManager. Built-in quality profiles may be based on generic material IDs such as "generic_pla".
+    # For materials such as ultimaker_pla_orange, no quality profiles may be found, so we should fall back to use
+    # the generic material IDs to search for qualities.
+    #
+    # An example would be, suppose we have machine with preferred material set to "filo3d_pla" (1.75mm), but its
+    # extruders only use 2.85mm materials, then we won't be able to find the preferred material for this machine.
+    # A fallback would be to fetch a generic material of the same type "PLA" as "filo3d_pla", and in this case it will
+    # be "generic_pla". This function is intended to get a generic fallback material for the given material type.
+    #
+    # This function returns the generic root material ID for the given material type, where material types are "PLA",
+    # "ABS", etc.
+    #
+    def getFallbackMaterialIdByMaterialType(self, material_type: str) -> Optional[str]:
+        # For safety
+        if material_type not in self._fallback_materials_map:
+            Logger.log("w", "The material type [%s] does not have a fallback material" % material_type)
+            return None
+        fallback_material = self._fallback_materials_map[material_type]
+        if fallback_material:
+            return self.getRootMaterialIDWithoutDiameter(fallback_material["id"])
+        else:
+            return None
+
+    def getDefaultMaterial(self, global_stack: "GlobalStack", extruder_variant_name: str) -> Optional["MaterialNode"]:
+        node = None
+        machine_definition = global_stack.definition
+        if parseBool(machine_definition.getMetaDataEntry("has_materials", False)):
+            material_diameter = machine_definition.getProperty("material_diameter", "value")
+            if isinstance(material_diameter, SettingFunction):
+                material_diameter = material_diameter(global_stack)
+            approximate_material_diameter = str(round(material_diameter))
+            root_material_id = machine_definition.getMetaDataEntry("preferred_material")
+            root_material_id = self.getRootMaterialIDForDiameter(root_material_id, approximate_material_diameter)
+            node = self.getMaterialNode(machine_definition.getId(), extruder_variant_name,
+                                        material_diameter, root_material_id)
+        return node
+
+    #
+    # Methods for GUI
+    #
+
+    #
+    # Sets the new name for the given material.
+    #
+    @pyqtSlot("QVariant", str)
+    def setMaterialName(self, material_node: "MaterialNode", name: str):
+        root_material_id = material_node.metadata["base_file"]
+        if self._container_registry.isReadOnly(root_material_id):
+            Logger.log("w", "Cannot set name of read-only container %s.", root_material_id)
+            return
+
+        material_group = self.getMaterialGroup(root_material_id)
+        material_group.root_material_node.getContainer().setName(name)
+
+    #
+    # Removes the given material.
+    #
+    @pyqtSlot("QVariant")
+    def removeMaterial(self, material_node: "MaterialNode"):
+        root_material_id = material_node.metadata["base_file"]
+        material_group = self.getMaterialGroup(root_material_id)
+        if not material_group:
+            Logger.log("d", "Unable to remove the material with id %s, because it doesn't exist.", root_material_id)
+            return
+
+        nodes_to_remove = [material_group.root_material_node] + material_group.derived_material_node_list
+        for node in nodes_to_remove:
+            self._container_registry.removeContainer(node.metadata["id"])
+
+    #
+    # Creates a duplicate of a material, which has the same GUID and base_file metadata.
+    # Returns the root material ID of the duplicated material if successful.
+    #
+    @pyqtSlot("QVariant", result = str)
+    def duplicateMaterial(self, material_node, new_base_id = None, new_metadata = None) -> Optional[str]:
+        root_material_id = material_node.metadata["base_file"]
+
+        material_group = self.getMaterialGroup(root_material_id)
+        if not material_group:
+            Logger.log("i", "Unable to duplicate the material with id %s, because it doesn't exist.", root_material_id)
+            return None
+
+        base_container = material_group.root_material_node.getContainer()
+
+        # Ensure all settings are saved.
+        self._application.saveSettings()
+
+        # Create a new ID & container to hold the data.
+        new_containers = []
+        if new_base_id is None:
+            new_base_id = self._container_registry.uniqueName(base_container.getId())
+        new_base_container = copy.deepcopy(base_container)
+        new_base_container.getMetaData()["id"] = new_base_id
+        new_base_container.getMetaData()["base_file"] = new_base_id
+        if new_metadata is not None:
+            for key, value in new_metadata.items():
+                new_base_container.getMetaData()[key] = value
+        new_containers.append(new_base_container)
+
+        # Clone all of them.
+        for node in material_group.derived_material_node_list:
+            container_to_copy = node.getContainer()
+            # Create unique IDs for every clone.
+            new_id = new_base_id
+            if container_to_copy.getMetaDataEntry("definition") != "fdmprinter":
+                new_id += "_" + container_to_copy.getMetaDataEntry("definition")
+                if container_to_copy.getMetaDataEntry("variant_name"):
+                    variant_name = container_to_copy.getMetaDataEntry("variant_name")
+                    new_id += "_" + variant_name.replace(" ", "_")
+
+            new_container = copy.deepcopy(container_to_copy)
+            new_container.getMetaData()["id"] = new_id
+            new_container.getMetaData()["base_file"] = new_base_id
+            if new_metadata is not None:
+                for key, value in new_metadata.items():
+                    new_container.getMetaData()[key] = value
+
+            new_containers.append(new_container)
+
+        for container_to_add in new_containers:
+            container_to_add.setDirty(True)
+            self._container_registry.addContainer(container_to_add)
+        return new_base_id
+
+    #
+    # Create a new material by cloning Generic PLA for the current material diameter and generate a new GUID.
+    #
+    @pyqtSlot(result = str)
+    def createMaterial(self) -> str:
+        from UM.i18n import i18nCatalog
+        catalog = i18nCatalog("cura")
+        # Ensure all settings are saved.
+        self._application.saveSettings()
+
+        global_stack = self._application.getGlobalContainerStack()
+        approximate_diameter = str(round(global_stack.getProperty("material_diameter", "value")))
+        root_material_id = "generic_pla"
+        root_material_id = self.getRootMaterialIDForDiameter(root_material_id, approximate_diameter)
+        material_group = self.getMaterialGroup(root_material_id)
+
+        # Create a new ID & container to hold the data.
+        new_id = self._container_registry.uniqueName("custom_material")
+        new_metadata = {"name": catalog.i18nc("@label", "Custom Material"),
+                        "brand": catalog.i18nc("@label", "Custom"),
+                        "GUID": str(uuid.uuid4()),
+                        }
+
+        self.duplicateMaterial(material_group.root_material_node,
+                               new_base_id = new_id,
+                               new_metadata = new_metadata)
+        return new_id

cura/Machines/MaterialNode.py

@@ -0,0 +1,21 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from typing import Optional
+
+from .ContainerNode import ContainerNode
+
+
+#
+# A MaterialNode is a node in the material lookup tree/map/table. It contains 2 (extra) fields:
+#  - material_map: a one-to-one map of "material_root_id" to material_node.
+#  - children_map: the key-value map for child nodes of this node. This is used in a lookup tree.
+#
+#
+class MaterialNode(ContainerNode):
+    __slots__ = ("material_map", "children_map")
+
+    def __init__(self, metadata: Optional[dict] = None):
+        super().__init__(metadata = metadata)
+        self.material_map = {}  # material_root_id -> material_node
+        self.children_map = {}  # mapping for the child nodes

cura/Machines/Models/BaseMaterialsModel.py

@@ -0,0 +1,46 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from PyQt5.QtCore import Qt, pyqtSignal, pyqtProperty
+
+from UM.Qt.ListModel import ListModel
+
+
+#
+# This is the base model class for GenericMaterialsModel and BrandMaterialsModel
+# Those 2 models are used by the material drop down menu to show generic materials and branded materials separately.
+# The extruder position defined here is being used to bound a menu to the correct extruder. This is used in the top
+# bar menu "Settings" -> "Extruder nr" -> "Material" -> this menu
+#
+class BaseMaterialsModel(ListModel):
+    RootMaterialIdRole = Qt.UserRole + 1
+    IdRole = Qt.UserRole + 2
+    NameRole = Qt.UserRole + 3
+    BrandRole = Qt.UserRole + 4
+    MaterialRole = Qt.UserRole + 5
+    ColorRole = Qt.UserRole + 6
+    ContainerNodeRole = Qt.UserRole + 7
+
+    extruderPositionChanged = pyqtSignal()
+
+    def __init__(self, parent = None):
+        super().__init__(parent)
+
+        self.addRoleName(self.RootMaterialIdRole, "root_material_id")
+        self.addRoleName(self.IdRole, "id")
+        self.addRoleName(self.NameRole, "name")
+        self.addRoleName(self.BrandRole, "brand")
+        self.addRoleName(self.MaterialRole, "material")
+        self.addRoleName(self.ColorRole, "color_name")
+        self.addRoleName(self.ContainerNodeRole, "container_node")
+
+        self._extruder_position = 0
+
+    def setExtruderPosition(self, position: int):
+        if self._extruder_position != position:
+            self._extruder_position = position
+            self.extruderPositionChanged.emit()
+
+    @pyqtProperty(int, fset = setExtruderPosition, notify = extruderPositionChanged)
+    def extruderPosition(self) -> int:
+        return self._extruder_positoin

cura/Machines/Models/BrandMaterialsModel.py

@@ -0,0 +1,131 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from PyQt5.QtCore import Qt, pyqtSignal, pyqtProperty
+
+from UM.Qt.ListModel import ListModel
+
+from .BaseMaterialsModel import BaseMaterialsModel
+
+
+#
+# This is an intermediate model to group materials with different colours for a same brand and type.
+#
+class MaterialsModelGroupedByType(ListModel):
+    NameRole = Qt.UserRole + 1
+    ColorsRole = Qt.UserRole + 2
+
+    def __init__(self, parent = None):
+        super().__init__(parent)
+
+        self.addRoleName(self.NameRole, "name")
+        self.addRoleName(self.ColorsRole, "colors")
+
+
+#
+# This model is used to show branded materials in the material drop down menu.
+# The structure of the menu looks like this:
+#       Brand -> Material Type -> list of materials
+#
+# To illustrate, a branded material menu may look like this:
+#      Ultimaker -> PLA -> Yellow PLA
+#                       -> Black PLA
+#                       -> ...
+#                -> ABS -> White ABS
+#                          ...
+#
+class BrandMaterialsModel(ListModel):
+    NameRole = Qt.UserRole + 1
+    MaterialsRole = Qt.UserRole + 2
+
+    extruderPositionChanged = pyqtSignal()
+
+    def __init__(self, parent = None):
+        super().__init__(parent)
+
+        self.addRoleName(self.NameRole, "name")
+        self.addRoleName(self.MaterialsRole, "materials")
+
+        self._extruder_position = 0
+
+        from cura.CuraApplication import CuraApplication
+        self._machine_manager = CuraApplication.getInstance().getMachineManager()
+        self._extruder_manager = CuraApplication.getInstance().getExtruderManager()
+        self._material_manager = CuraApplication.getInstance().getMaterialManager()
+
+        self._machine_manager.globalContainerChanged.connect(self._update)
+        self._extruder_manager.activeExtruderChanged.connect(self._update)
+        self._material_manager.materialsUpdated.connect(self._update)
+
+        self._update()
+
+    def setExtruderPosition(self, position: int):
+        if self._extruder_position != position:
+            self._extruder_position = position
+            self.extruderPositionChanged.emit()
+
+    @pyqtProperty(int, fset = setExtruderPosition, notify = extruderPositionChanged)
+    def extruderPosition(self) -> int:
+        return self._extruder_position
+
+    def _update(self):
+        global_stack = self._machine_manager.activeMachine
+        if global_stack is None:
+            self.setItems([])
+            return
+        extruder_position = str(self._extruder_position)
+        if extruder_position not in global_stack.extruders:
+            self.setItems([])
+            return
+        extruder_stack = global_stack.extruders[str(self._extruder_position)]
+
+        available_material_dict = self._material_manager.getAvailableMaterialsForMachineExtruder(global_stack,
+                                                                                                 extruder_stack)
+        if available_material_dict is None:
+            self.setItems([])
+            return
+
+        brand_item_list = []
+        brand_group_dict = {}
+        for root_material_id, container_node in available_material_dict.items():
+            metadata = container_node.metadata
+            brand = metadata["brand"]
+            # Only add results for generic materials
+            if brand.lower() == "generic":
+                continue
+
+            if brand not in brand_group_dict:
+                brand_group_dict[brand] = {}
+
+            material_type = metadata["material"]
+            if material_type not in brand_group_dict[brand]:
+                brand_group_dict[brand][material_type] = []
+
+            item = {"root_material_id": root_material_id,
+                    "id": metadata["id"],
+                    "name": metadata["name"],
+                    "brand": metadata["brand"],
+                    "material": metadata["material"],
+                    "color_name": metadata["color_name"],
+                    "container_node": container_node
+                    }
+            brand_group_dict[brand][material_type].append(item)
+
+        for brand, material_dict in brand_group_dict.items():
+            brand_item = {"name": brand,
+                          "materials": MaterialsModelGroupedByType(self)}
+
+            material_type_item_list = []
+            for material_type, material_list in material_dict.items():
+                material_type_item = {"name": material_type,
+                                      "colors": BaseMaterialsModel(self)}
+                material_type_item["colors"].clear()
+                material_type_item["colors"].setItems(material_list)
+
+                material_type_item_list.append(material_type_item)
+
+            brand_item["materials"].setItems(material_type_item_list)
+
+            brand_item_list.append(brand_item)
+
+        self.setItems(brand_item_list)

cura/Machines/Models/BuildPlateModel.py

@@ -0,0 +1,49 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from PyQt5.QtCore import Qt
+
+from UM.Application import Application
+from UM.Qt.ListModel import ListModel
+from UM.Util import parseBool
+
+from cura.Machines.VariantManager import VariantType
+
+
+class BuildPlateModel(ListModel):
+    NameRole = Qt.UserRole + 1
+    ContainerNodeRole = Qt.UserRole + 2
+
+    def __init__(self, parent = None):
+        super().__init__(parent)
+
+        self.addRoleName(self.NameRole, "name")
+        self.addRoleName(self.ContainerNodeRole, "container_node")
+
+        self._application = Application.getInstance()
+        self._variant_manager = self._application._variant_manager
+        self._machine_manager = self._application.getMachineManager()
+
+        self._machine_manager.globalContainerChanged.connect(self._update)
+
+        self._update()
+
+    def _update(self):
+        global_stack = self._machine_manager._global_container_stack
+        if not global_stack:
+            self.setItems([])
+            return
+
+        has_variants = parseBool(global_stack.getMetaDataEntry("has_variant_buildplates", False))
+        if not has_variants:
+            self.setItems([])
+            return
+
+        variant_dict = self._variant_manager.getVariantNodes(global_stack, variant_type = VariantType.BUILD_PLATE)
+
+        item_list = []
+        for name, variant_node in variant_dict.items():
+            item = {"name": name,
+                    "container_node": variant_node}
+            item_list.append(item)
+        self.setItems(item_list)

cura/Machines/Models/CustomQualityProfilesDropDownMenuModel.py

@@ -0,0 +1,37 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from UM.Logger import Logger
+
+from cura.Machines.Models.QualityProfilesDropDownMenuModel import QualityProfilesDropDownMenuModel
+
+
+#
+# This model is used for the custom profile items in the profile drop down menu.
+#
+class CustomQualityProfilesDropDownMenuModel(QualityProfilesDropDownMenuModel):
+
+    def _update(self):
+        Logger.log("d", "Updating %s ...", self.__class__.__name__)
+
+        active_global_stack = self._machine_manager.activeMachine
+        if active_global_stack is None:
+            self.setItems([])
+            Logger.log("d", "No active GlobalStack, set %s as empty.", self.__class__.__name__)
+            return
+
+        quality_changes_group_dict = self._quality_manager.getQualityChangesGroups(active_global_stack)
+
+        item_list = []
+        for key in sorted(quality_changes_group_dict):
+            quality_changes_group = quality_changes_group_dict[key]
+
+            item = {"name": quality_changes_group.name,
+                    "layer_height": "",
+                    "layer_height_without_unit": "",
+                    "available": quality_changes_group.is_available,
+                    "quality_changes_group": quality_changes_group}
+
+            item_list.append(item)
+
+        self.setItems(item_list)

cura/Machines/Models/GenericMaterialsModel.py

@@ -0,0 +1,60 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from .BaseMaterialsModel import BaseMaterialsModel
+
+
+class GenericMaterialsModel(BaseMaterialsModel):
+
+    def __init__(self, parent = None):
+        super().__init__(parent)
+
+        from cura.CuraApplication import CuraApplication
+        self._machine_manager = CuraApplication.getInstance().getMachineManager()
+        self._extruder_manager = CuraApplication.getInstance().getExtruderManager()
+        self._material_manager = CuraApplication.getInstance().getMaterialManager()
+
+        self._machine_manager.globalContainerChanged.connect(self._update)
+        self._extruder_manager.activeExtruderChanged.connect(self._update)
+        self._material_manager.materialsUpdated.connect(self._update)
+
+        self._update()
+
+    def _update(self):
+        global_stack = self._machine_manager.activeMachine
+        if global_stack is None:
+            self.setItems([])
+            return
+        extruder_position = str(self._extruder_position)
+        if extruder_position not in global_stack.extruders:
+            self.setItems([])
+            return
+        extruder_stack = global_stack.extruders[extruder_position]
+
+        available_material_dict = self._material_manager.getAvailableMaterialsForMachineExtruder(global_stack,
+                                                                                                 extruder_stack)
+        if available_material_dict is None:
+            self.setItems([])
+            return
+
+        item_list = []
+        for root_material_id, container_node in available_material_dict.items():
+            metadata = container_node.metadata
+            # Only add results for generic materials
+            if metadata["brand"].lower() != "generic":
+                continue
+
+            item = {"root_material_id": root_material_id,
+                    "id": metadata["id"],
+                    "name": metadata["name"],
+                    "brand": metadata["brand"],
+                    "material": metadata["material"],
+                    "color_name": metadata["color_name"],
+                    "container_node": container_node
+                    }
+            item_list.append(item)
+
+        # Sort the item list by material name alphabetically
+        item_list = sorted(item_list, key = lambda d: d["name"])
+
+        self.setItems(item_list)

cura/Machines/Models/MaterialManagementModel.py

@@ -0,0 +1,101 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from PyQt5.QtCore import Qt, pyqtProperty
+
+from UM.Qt.ListModel import ListModel
+
+
+#
+# This model is for the Material management page.
+#
+class MaterialManagementModel(ListModel):
+    RootMaterialIdRole = Qt.UserRole + 1
+    DisplayNameRole = Qt.UserRole + 2
+    BrandRole = Qt.UserRole + 3
+    MaterialTypeRole = Qt.UserRole + 4
+    ColorNameRole = Qt.UserRole + 5
+    ColorCodeRole = Qt.UserRole + 6
+    ContainerNodeRole = Qt.UserRole + 7
+    ContainerIdRole = Qt.UserRole + 8
+
+    DescriptionRole = Qt.UserRole + 9
+    AdhesionInfoRole = Qt.UserRole + 10
+    ApproximateDiameterRole = Qt.UserRole + 11
+    GuidRole = Qt.UserRole + 12
+    DensityRole = Qt.UserRole + 13
+    DiameterRole = Qt.UserRole + 14
+    IsReadOnlyRole = Qt.UserRole + 15
+
+    def __init__(self, parent = None):
+        super().__init__(parent)
+
+        self.addRoleName(self.RootMaterialIdRole, "root_material_id")
+        self.addRoleName(self.DisplayNameRole, "name")
+        self.addRoleName(self.BrandRole, "brand")
+        self.addRoleName(self.MaterialTypeRole, "material")
+        self.addRoleName(self.ColorNameRole, "color_name")
+        self.addRoleName(self.ColorCodeRole, "color_code")
+        self.addRoleName(self.ContainerNodeRole, "container_node")
+        self.addRoleName(self.ContainerIdRole, "container_id")
+
+        self.addRoleName(self.DescriptionRole, "description")
+        self.addRoleName(self.AdhesionInfoRole, "adhesion_info")
+        self.addRoleName(self.ApproximateDiameterRole, "approximate_diameter")
+        self.addRoleName(self.GuidRole, "guid")
+        self.addRoleName(self.DensityRole, "density")
+        self.addRoleName(self.DiameterRole, "diameter")
+        self.addRoleName(self.IsReadOnlyRole, "is_read_only")
+
+        from cura.CuraApplication import CuraApplication
+        self._container_registry = CuraApplication.getInstance().getContainerRegistry()
+        self._machine_manager = CuraApplication.getInstance().getMachineManager()
+        self._extruder_manager = CuraApplication.getInstance().getExtruderManager()
+        self._material_manager = CuraApplication.getInstance().getMaterialManager()
+
+        self._machine_manager.globalContainerChanged.connect(self._update)
+        self._extruder_manager.activeExtruderChanged.connect(self._update)
+        self._material_manager.materialsUpdated.connect(self._update)
+
+        self._update()
+
+    def _update(self):
+        global_stack = self._machine_manager.activeMachine
+        if global_stack is None:
+            self.setItems([])
+            return
+        active_extruder_stack = self._machine_manager.activeStack
+
+        available_material_dict = self._material_manager.getAvailableMaterialsForMachineExtruder(global_stack,
+                                                                                                 active_extruder_stack)
+        if available_material_dict is None:
+            self.setItems([])
+            return
+
+        material_list = []
+        for root_material_id, container_node in available_material_dict.items():
+            keys_to_fetch = ("name",
+                             "brand",
+                             "material",
+                             "color_name",
+                             "color_code",
+                             "description",
+                             "adhesion_info",
+                             "approximate_diameter",)
+
+            item = {"root_material_id": container_node.metadata["base_file"],
+                    "container_node": container_node,
+                    "guid": container_node.metadata["GUID"],
+                    "container_id": container_node.metadata["id"],
+                    "density": container_node.metadata.get("properties", {}).get("density", ""),
+                    "diameter": container_node.metadata.get("properties", {}).get("diameter", ""),
+                    "is_read_only": self._container_registry.isReadOnly(container_node.metadata["id"]),
+                    }
+
+            for key in keys_to_fetch:
+                item[key] = container_node.metadata.get(key, "")
+
+            material_list.append(item)
+
+        material_list = sorted(material_list, key = lambda k: (k["brand"].lower(), k["name"]))
+        self.setItems(material_list)

cura/Machines/Models/MultiBuildPlateModel.py

@@ -1,24 +1,32 @@
-from PyQt5.QtCore import pyqtSignal, pyqtProperty, pyqtSlot
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from PyQt5.QtCore import pyqtSignal, pyqtProperty
 
-from UM.Qt.ListModel import ListModel
-from UM.Scene.Selection import Selection
-from UM.Logger import Logger
 from UM.Application import Application
+from UM.Scene.Selection import Selection
+from UM.Qt.ListModel import ListModel
 
 
-class BuildPlateModel(ListModel):
+#
+# This is the model for multi build plate feature.
+# This has nothing to do with the build plate types you can choose on the sidebar for a machine.
+#
+class MultiBuildPlateModel(ListModel):
+
     maxBuildPlateChanged = pyqtSignal()
     activeBuildPlateChanged = pyqtSignal()
     selectionChanged = pyqtSignal()
 
-    def __init__(self):
+    def __init__(self, parent = None):
-        super().__init__()
+        super().__init__(parent)
-        Application.getInstance().getController().getScene().sceneChanged.connect(self._updateSelectedObjectBuildPlateNumbers)
+
+        self._application = Application.getInstance()
+        self._application.getController().getScene().sceneChanged.connect(self._updateSelectedObjectBuildPlateNumbers)
         Selection.selectionChanged.connect(self._updateSelectedObjectBuildPlateNumbers)
 
         self._max_build_plate = 1  # default
         self._active_build_plate = -1
-        self._selection_build_plates = []
 
     def setMaxBuildPlate(self, max_build_plate):
         self._max_build_plate = max_build_plate
@@ -37,10 +45,6 @@ class BuildPlateModel(ListModel):
     def activeBuildPlate(self):
         return self._active_build_plate
 
-    @staticmethod
-    def createBuildPlateModel():
-        return BuildPlateModel()
-
     def _updateSelectedObjectBuildPlateNumbers(self, *args):
         result = set()
         for node in Selection.getAllSelectedObjects():

cura/Machines/Models/NozzleModel.py

@@ -0,0 +1,56 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from PyQt5.QtCore import Qt
+
+from UM.Application import Application
+from UM.Qt.ListModel import ListModel
+from UM.Util import parseBool
+
+
+class NozzleModel(ListModel):
+    IdRole = Qt.UserRole + 1
+    HotendNameRole = Qt.UserRole + 2
+    ContainerNodeRole = Qt.UserRole + 3
+
+    def __init__(self, parent = None):
+        super().__init__(parent)
+
+        self.addRoleName(self.IdRole, "id")
+        self.addRoleName(self.HotendNameRole, "hotend_name")
+        self.addRoleName(self.ContainerNodeRole, "container_node")
+
+        Application.getInstance().globalContainerStackChanged.connect(self._update)
+        Application.getInstance().getMachineManager().activeVariantChanged.connect(self._update)
+        Application.getInstance().getMachineManager().activeStackChanged.connect(self._update)
+        Application.getInstance().getMachineManager().activeMaterialChanged.connect(self._update)
+
+    def _update(self):
+        self.items.clear()
+
+        variant_manager = Application.getInstance()._variant_manager
+        active_global_stack = Application.getInstance().getMachineManager()._global_container_stack
+        if active_global_stack is None:
+            self.setItems([])
+            return
+
+        has_variants = parseBool(active_global_stack.getMetaDataEntry("has_variants", False))
+        if not has_variants:
+            self.setItems([])
+            return
+
+        variant_node_dict = variant_manager.getVariantNodes(active_global_stack)
+        if not variant_node_dict:
+            self.setItems([])
+            return
+
+        item_list = []
+        for hotend_name, container_node in sorted(variant_node_dict.items(), key = lambda i: i[0]):
+            item = {"id": hotend_name,
+                    "hotend_name": hotend_name,
+                    "container_node": container_node
+                    }
+
+            item_list.append(item)
+
+        self.setItems(item_list)

cura/Machines/Models/QualityManagementModel.py

@@ -0,0 +1,122 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from PyQt5.QtCore import Qt, pyqtSlot
+
+from UM.Qt.ListModel import ListModel
+
+
+#
+# This the QML model for the quality management page.
+#
+class QualityManagementModel(ListModel):
+    NameRole = Qt.UserRole + 1
+    IsReadOnlyRole = Qt.UserRole + 2
+    QualityGroupRole = Qt.UserRole + 3
+    QualityChangesGroupRole = Qt.UserRole + 4
+
+    def __init__(self, parent = None):
+        super().__init__(parent)
+
+        self.addRoleName(self.NameRole, "name")
+        self.addRoleName(self.IsReadOnlyRole, "is_read_only")
+        self.addRoleName(self.QualityGroupRole, "quality_group")
+        self.addRoleName(self.QualityChangesGroupRole, "quality_changes_group")
+
+        from cura.CuraApplication import CuraApplication
+        self._container_registry = CuraApplication.getInstance().getContainerRegistry()
+        self._machine_manager = CuraApplication.getInstance().getMachineManager()
+        self._extruder_manager = CuraApplication.getInstance().getExtruderManager()
+        self._quality_manager = CuraApplication.getInstance().getQualityManager()
+
+        self._machine_manager.globalContainerChanged.connect(self._update)
+        self._quality_manager.qualitiesUpdated.connect(self._update)
+
+        self._update()
+
+    def _update(self):
+        global_stack = self._machine_manager.activeMachine
+
+        quality_group_dict = self._quality_manager.getQualityGroups(global_stack)
+        quality_changes_group_dict = self._quality_manager.getQualityChangesGroups(global_stack)
+
+        available_quality_types = set(quality_type for quality_type, quality_group in quality_group_dict.items()
+                                      if quality_group.is_available)
+        if not available_quality_types and not quality_changes_group_dict:
+            # Nothing to show
+            self.setItems([])
+            return
+
+        item_list = []
+        # Create quality group items
+        for quality_group in quality_group_dict.values():
+            if not quality_group.is_available:
+                continue
+
+            item = {"name": quality_group.name,
+                    "is_read_only": True,
+                    "quality_group": quality_group,
+                    "quality_changes_group": None}
+            item_list.append(item)
+        # Sort by quality names
+        item_list = sorted(item_list, key = lambda x: x["name"])
+
+        # Create quality_changes group items
+        quality_changes_item_list = []
+        for quality_changes_group in quality_changes_group_dict.values():
+            if quality_changes_group.quality_type not in available_quality_types:
+                continue
+            quality_group = quality_group_dict[quality_changes_group.quality_type]
+            item = {"name": quality_changes_group.name,
+                    "is_read_only": False,
+                    "quality_group": quality_group,
+                    "quality_changes_group": quality_changes_group}
+            quality_changes_item_list.append(item)
+
+        # Sort quality_changes items by names and append to the item list
+        quality_changes_item_list = sorted(quality_changes_item_list, key = lambda x: x["name"])
+        item_list += quality_changes_item_list
+
+        self.setItems(item_list)
+
+    # TODO: Duplicated code here from InstanceContainersModel. Refactor and remove this later.
+    #
+    ##  Gets a list of the possible file filters that the plugins have
+    #   registered they can read or write. The convenience meta-filters
+    #   "All Supported Types" and "All Files" are added when listing
+    #   readers, but not when listing writers.
+    #
+    #   \param io_type \type{str} name of the needed IO type
+    #   \return A list of strings indicating file name filters for a file
+    #   dialog.
+    @pyqtSlot(str, result = "QVariantList")
+    def getFileNameFilters(self, io_type):
+        from UM.i18n import i18nCatalog
+        catalog = i18nCatalog("uranium")
+        #TODO: This function should be in UM.Resources!
+        filters = []
+        all_types = []
+        for plugin_id, meta_data in self._getIOPlugins(io_type):
+            for io_plugin in meta_data[io_type]:
+                filters.append(io_plugin["description"] + " (*." + io_plugin["extension"] + ")")
+                all_types.append("*.{0}".format(io_plugin["extension"]))
+
+        if "_reader" in io_type:
+            # if we're listing readers, add the option to show all supported files as the default option
+            filters.insert(0, catalog.i18nc("@item:inlistbox", "All Supported Types ({0})", " ".join(all_types)))
+            filters.append(catalog.i18nc("@item:inlistbox", "All Files (*)"))  # Also allow arbitrary files, if the user so prefers.
+        return filters
+
+    ##  Gets a list of profile reader or writer plugins
+    #   \return List of tuples of (plugin_id, meta_data).
+    def _getIOPlugins(self, io_type):
+        from UM.PluginRegistry import PluginRegistry
+        pr = PluginRegistry.getInstance()
+        active_plugin_ids = pr.getActivePlugins()
+
+        result = []
+        for plugin_id in active_plugin_ids:
+            meta_data = pr.getMetaData(plugin_id)
+            if io_type in meta_data:
+                result.append( (plugin_id, meta_data) )
+        return result

cura/Machines/Models/QualityProfilesDropDownMenuModel.py

@@ -0,0 +1,106 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from PyQt5.QtCore import Qt
+
+from UM.Application import Application
+from UM.Logger import Logger
+from UM.Qt.ListModel import ListModel
+
+from cura.Machines.QualityManager import QualityGroup
+
+
+#
+# QML Model for all built-in quality profiles. This model is used for the drop-down quality menu.
+#
+class QualityProfilesDropDownMenuModel(ListModel):
+    NameRole = Qt.UserRole + 1
+    QualityTypeRole = Qt.UserRole + 2
+    LayerHeightRole = Qt.UserRole + 3
+    LayerHeightUnitRole = Qt.UserRole + 4
+    AvailableRole = Qt.UserRole + 5
+    QualityGroupRole = Qt.UserRole + 6
+    QualityChangesGroupRole = Qt.UserRole + 7
+
+    def __init__(self, parent = None):
+        super().__init__(parent)
+
+        self.addRoleName(self.NameRole, "name")
+        self.addRoleName(self.QualityTypeRole, "quality_type")
+        self.addRoleName(self.LayerHeightRole, "layer_height")
+        self.addRoleName(self.LayerHeightUnitRole, "layer_height_unit")
+        self.addRoleName(self.AvailableRole, "available")
+        self.addRoleName(self.QualityGroupRole, "quality_group")
+        self.addRoleName(self.QualityChangesGroupRole, "quality_changes_group")
+
+        self._application = Application.getInstance()
+        self._machine_manager = self._application.getMachineManager()
+        self._quality_manager = Application.getInstance().getQualityManager()
+
+        self._application.globalContainerStackChanged.connect(self._update)
+        self._machine_manager.activeQualityGroupChanged.connect(self._update)
+        self._quality_manager.qualitiesUpdated.connect(self._update)
+
+        self._layer_height_unit = ""  # This is cached
+
+        self._update()
+
+    def _update(self):
+        Logger.log("d", "Updating quality profile model ...")
+
+        global_stack = self._machine_manager.activeMachine
+        if global_stack is None:
+            self.setItems([])
+            Logger.log("d", "No active GlobalStack, set quality profile model as empty.")
+            return
+
+        # Check for material compatibility
+        if not self._machine_manager.activeMaterialsCompatible():
+            Logger.log("d", "No active material compatibility, set quality profile model as empty.")
+            self.setItems([])
+            return
+
+        quality_group_dict = self._quality_manager.getQualityGroups(global_stack)
+
+        item_list = []
+        for key in sorted(quality_group_dict):
+            quality_group = quality_group_dict[key]
+
+            layer_height = self._fetchLayerHeight(quality_group)
+
+            item = {"name": quality_group.name,
+                    "quality_type": quality_group.quality_type,
+                    "layer_height": layer_height,
+                    "layer_height_unit": self._layer_height_unit,
+                    "available": quality_group.is_available,
+                    "quality_group": quality_group}
+
+            item_list.append(item)
+
+        # Sort items based on layer_height
+        item_list = sorted(item_list, key = lambda x: x["layer_height"])
+
+        self.setItems(item_list)
+
+    def _fetchLayerHeight(self, quality_group: "QualityGroup"):
+        global_stack = self._machine_manager.activeMachine
+        if not self._layer_height_unit:
+            unit = global_stack.definition.getProperty("layer_height", "unit")
+            if not unit:
+                unit = ""
+            self._layer_height_unit = unit
+
+        default_layer_height = global_stack.definition.getProperty("layer_height", "value")
+
+        # Get layer_height from the quality profile for the GlobalStack
+        container = quality_group.node_for_global.getContainer()
+
+        layer_height = default_layer_height
+        if container.hasProperty("layer_height", "value"):
+            layer_height = container.getProperty("layer_height", "value")
+        else:
+            # Look for layer_height in the GlobalStack from material -> definition
+            container = global_stack.definition
+            if container.hasProperty("layer_height", "value"):
+                layer_height = container.getProperty("layer_height", "value")
+        return float(layer_height)

cura/Machines/Models/QualitySettingsModel.py

@@ -0,0 +1,159 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from PyQt5.QtCore import pyqtProperty, pyqtSignal, Qt
+
+from UM.Application import Application
+from UM.Logger import Logger
+from UM.Qt.ListModel import ListModel
+from UM.Settings.ContainerRegistry import ContainerRegistry
+
+
+#
+# This model is used to show details settings of the selected quality in the quality management page.
+#
+class QualitySettingsModel(ListModel):
+    KeyRole = Qt.UserRole + 1
+    LabelRole = Qt.UserRole + 2
+    UnitRole = Qt.UserRole + 3
+    ProfileValueRole = Qt.UserRole + 4
+    ProfileValueSourceRole = Qt.UserRole + 5
+    UserValueRole = Qt.UserRole + 6
+    CategoryRole = Qt.UserRole + 7
+
+    def __init__(self, parent = None):
+        super().__init__(parent = parent)
+
+        self.addRoleName(self.KeyRole, "key")
+        self.addRoleName(self.LabelRole, "label")
+        self.addRoleName(self.UnitRole, "unit")
+        self.addRoleName(self.ProfileValueRole, "profile_value")
+        self.addRoleName(self.ProfileValueSourceRole, "profile_value_source")
+        self.addRoleName(self.UserValueRole, "user_value")
+        self.addRoleName(self.CategoryRole, "category")
+
+        self._container_registry = ContainerRegistry.getInstance()
+        self._application = Application.getInstance()
+        self._quality_manager = self._application.getQualityManager()
+
+        self._selected_position = ""  # empty string means GlobalStack
+                                      # strings such as "0", "1", etc. mean extruder positions
+        self._selected_quality_item = None  # The selected quality in the quality management page
+        self._i18n_catalog = None
+
+        self._quality_manager.qualitiesUpdated.connect(self._update)
+
+        self._update()
+
+    selectedPositionChanged = pyqtSignal()
+    selectedQualityItemChanged = pyqtSignal()
+
+    def setSelectedPosition(self, selected_position):
+        if selected_position != self._selected_position:
+            self._selected_position = selected_position
+            self.selectedPositionChanged.emit()
+            self._update()
+
+    @pyqtProperty(str, fset = setSelectedPosition, notify = selectedPositionChanged)
+    def selectedPosition(self):
+        return self._selected_position
+
+    def setSelectedQualityItem(self, selected_quality_item):
+        if selected_quality_item != self._selected_quality_item:
+            self._selected_quality_item = selected_quality_item
+            self.selectedQualityItemChanged.emit()
+            self._update()
+
+    @pyqtProperty("QVariantMap", fset = setSelectedQualityItem, notify = selectedQualityItemChanged)
+    def selectedQualityItem(self):
+        return self._selected_quality_item
+
+    def _update(self):
+        if self._selected_quality_item is None:
+            self.setItems([])
+            return
+
+        items = []
+
+        global_container_stack = self._application.getGlobalContainerStack()
+        definition_container = global_container_stack.definition
+
+        quality_group = self._selected_quality_item["quality_group"]
+        quality_changes_group = self._selected_quality_item["quality_changes_group"]
+
+        if self._selected_position == "":
+            quality_node = quality_group.node_for_global
+        else:
+            quality_node = quality_group.nodes_for_extruders.get(self._selected_position)
+        settings_keys = quality_group.getAllKeys()
+        quality_containers = [quality_node.getContainer()]
+
+        # Here, if the user has selected a quality changes, then "quality_changes_group" will not be None, and we fetch
+        # the settings in that quality_changes_group.
+        if quality_changes_group is not None:
+            if self._selected_position == "":
+                quality_changes_node = quality_changes_group.node_for_global
+            else:
+                quality_changes_node = quality_changes_group.nodes_for_extruders.get(self._selected_position)
+            if quality_changes_node is not None:  # it can be None if number of extruders are changed during runtime
+                try:
+                    quality_containers.insert(0, quality_changes_node.getContainer())
+                except:
+                    # FIXME: This is to prevent incomplete update of QualityManager
+                    Logger.logException("d", "Failed to get container for quality changes node %s", quality_changes_node)
+                    return
+            settings_keys.update(quality_changes_group.getAllKeys())
+
+        # We iterate over all definitions instead of settings in a quality/qualtiy_changes group is because in the GUI,
+        # the settings are grouped together by categories, and we had to go over all the definitions to figure out
+        # which setting belongs in which category.
+        current_category = ""
+        for definition in definition_container.findDefinitions():
+            if definition.type == "category":
+                current_category = definition.label
+                if self._i18n_catalog:
+                    current_category = self._i18n_catalog.i18nc(definition.key + " label", definition.label)
+                continue
+
+            profile_value = None
+            profile_value_source = ""
+            for quality_container in quality_containers:
+                new_value = quality_container.getProperty(definition.key, "value")
+
+                if new_value is not None:
+                    profile_value_source = quality_container.getMetaDataEntry("type")
+                    profile_value = new_value
+
+                # Global tab should use resolve (if there is one)
+                if self._selected_position == "":
+                    resolve_value = global_container_stack.getProperty(definition.key, "resolve")
+                    if resolve_value is not None and definition.key in settings_keys:
+                        profile_value = resolve_value
+
+                if profile_value is not None:
+                    break
+
+            if not self._selected_position:
+                user_value = global_container_stack.userChanges.getProperty(definition.key, "value")
+            else:
+                extruder_stack = global_container_stack.extruders[self._selected_position]
+                user_value = extruder_stack.userChanges.getProperty(definition.key, "value")
+
+            if profile_value is None and user_value is None:
+                continue
+
+            label = definition.label
+            if self._i18n_catalog:
+                label = self._i18n_catalog.i18nc(definition.key + " label", label)
+
+            items.append({
+                "key": definition.key,
+                "label": label,
+                "unit": definition.unit,
+                "profile_value": "" if profile_value is None else str(profile_value),  # it is for display only
+                "profile_value_source": profile_value_source,
+                "user_value": "" if user_value is None else str(user_value),
+                "category": current_category
+            })
+
+        self.setItems(items)

cura/Machines/QualityChangesGroup.py

@@ -0,0 +1,53 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from UM.Application import Application
+
+from .QualityGroup import QualityGroup
+
+
+class QualityChangesGroup(QualityGroup):
+
+    def __init__(self, name: str, quality_type: str, parent = None):
+        super().__init__(name, quality_type, parent)
+        self._container_registry = Application.getInstance().getContainerRegistry()
+
+    def addNode(self, node: "QualityNode"):
+        # TODO: in 3.2 and earlier, a quality_changes container may have a field called "extruder" which contains the
+        # extruder definition ID it belongs to. But, in fact, we only need to know the following things:
+        #  1. which machine a custom profile is suitable for,
+        #  2. if this profile is for the GlobalStack,
+        #  3. if this profile is for an ExtruderStack and which one (the position).
+        #
+        # So, it is preferred to have a field like this:
+        #     extruder_position = 1
+        # instead of this:
+        #     extruder = custom_extruder_1
+        #
+        # An upgrade needs to be done if we want to do it this way. Before that, we use the extruder's definition
+        # to figure out its position.
+        #
+        extruder_definition_id = node.metadata.get("extruder")
+        if extruder_definition_id:
+            metadata_list = self._container_registry.findDefinitionContainersMetadata(id = extruder_definition_id)
+            if not metadata_list:
+                raise RuntimeError("%s cannot get metadata for extruder definition [%s]" %
+                                   (self, extruder_definition_id))
+            extruder_definition_metadata = metadata_list[0]
+            extruder_position = str(extruder_definition_metadata["position"])
+
+            if extruder_position in self.nodes_for_extruders:
+                raise RuntimeError("%s tries to overwrite the existing nodes_for_extruders position [%s] %s with %s" %
+                                   (self, extruder_position, self.node_for_global, node))
+
+            self.nodes_for_extruders[extruder_position] = node
+
+        else:
+            # This is a quality_changes for the GlobalStack
+            if self.node_for_global is not None:
+                raise RuntimeError("%s tries to overwrite the existing node_for_global %s with %s" %
+                                   (self, self.node_for_global, node))
+            self.node_for_global = node
+
+    def __str__(self) -> str:
+        return "%s[<%s>, available = %s]" % (self.__class__.__name__, self.name, self.is_available)

cura/Machines/QualityGroup.py

@@ -0,0 +1,50 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from typing import Optional, List
+
+from PyQt5.QtCore import QObject, pyqtSlot
+
+
+#
+# A QualityGroup represents a group of containers that must be applied to each ContainerStack when it's used.
+# Some concrete examples are Quality and QualityChanges: when we select quality type "normal", this quality type
+# must be applied to all stacks in a machine, although each stack can have different containers. Use an Ultimaker 3
+# as an example, suppose we choose quality type "normal", the actual InstanceContainers on each stack may look
+# as below:
+#                       GlobalStack         ExtruderStack 1         ExtruderStack 2
+# quality container:    um3_global_normal   um3_aa04_pla_normal     um3_aa04_abs_normal
+#
+# This QualityGroup is mainly used in quality and quality_changes to group the containers that can be applied to
+# a machine, so when a quality/custom quality is selected, the container can be directly applied to each stack instead
+# of looking them up again.
+#
+class QualityGroup(QObject):
+
+    def __init__(self, name: str, quality_type: str, parent = None):
+        super().__init__(parent)
+        self.name = name
+        self.node_for_global = None  # type: Optional["QualityGroup"]
+        self.nodes_for_extruders = dict()  # position str -> QualityGroup
+        self.quality_type = quality_type
+        self.is_available = False
+
+    @pyqtSlot(result = str)
+    def getName(self) -> str:
+        return self.name
+
+    def getAllKeys(self) -> set:
+        result = set()
+        for node in [self.node_for_global] + list(self.nodes_for_extruders.values()):
+            if node is None:
+                continue
+            result.update(node.getContainer().getAllKeys())
+        return result
+
+    def getAllNodes(self) -> List["QualityGroup"]:
+        result = []
+        if self.node_for_global is not None:
+            result.append(self.node_for_global)
+        for extruder_node in self.nodes_for_extruders.values():
+            result.append(extruder_node)
+        return result

cura/Machines/QualityManager.py

@@ -0,0 +1,445 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from typing import TYPE_CHECKING, Optional
+
+from PyQt5.QtCore import QObject, QTimer, pyqtSignal, pyqtSlot
+
+from UM.Application import Application
+from UM.Logger import Logger
+from UM.Util import parseBool
+from UM.Settings.InstanceContainer import InstanceContainer
+
+from .QualityGroup import QualityGroup
+from .QualityNode import QualityNode
+
+if TYPE_CHECKING:
+    from cura.Settings.GlobalStack import GlobalStack
+    from .QualityChangesGroup import QualityChangesGroup
+
+
+#
+# Similar to MaterialManager, QualityManager maintains a number of maps and trees for quality profile lookup.
+# The models GUI and QML use are now only dependent on the QualityManager. That means as long as the data in
+# QualityManager gets updated correctly, the GUI models should be updated correctly too, and the same goes for GUI.
+#
+# For now, updating the lookup maps and trees here is very simple: we discard the old data completely and recreate them
+# again. This means the update is exactly the same as initialization. There are performance concerns about this approach
+# but so far the creation of the tables and maps is very fast and there is no noticeable slowness, we keep it like this
+# because it's simple.
+#
+class QualityManager(QObject):
+
+    qualitiesUpdated = pyqtSignal()
+
+    def __init__(self, container_registry, parent = None):
+        super().__init__(parent)
+        self._application = Application.getInstance()
+        self._material_manager = self._application.getMaterialManager()
+        self._container_registry = container_registry
+
+        self._empty_quality_container = self._application.empty_quality_container
+        self._empty_quality_changes_container = self._application.empty_quality_changes_container
+
+        self._machine_variant_material_quality_type_to_quality_dict = {}  # for quality lookup
+        self._machine_quality_type_to_quality_changes_dict = {}  # for quality_changes lookup
+
+        self._default_machine_definition_id = "fdmprinter"
+
+        self._container_registry.containerMetaDataChanged.connect(self._onContainerMetadataChanged)
+        self._container_registry.containerAdded.connect(self._onContainerMetadataChanged)
+        self._container_registry.containerRemoved.connect(self._onContainerMetadataChanged)
+
+        # When a custom quality gets added/imported, there can be more than one InstanceContainers. In those cases,
+        # we don't want to react on every container/metadata changed signal. The timer here is to buffer it a bit so
+        # we don't react too many time.
+        self._update_timer = QTimer(self)
+        self._update_timer.setInterval(300)
+        self._update_timer.setSingleShot(True)
+        self._update_timer.timeout.connect(self._updateMaps)
+
+    def initialize(self):
+        # Initialize the lookup tree for quality profiles with following structure:
+        # <machine> -> <variant> -> <material>
+        #           -> <material>
+
+        self._machine_variant_material_quality_type_to_quality_dict = {}  # for quality lookup
+        self._machine_quality_type_to_quality_changes_dict = {}  # for quality_changes lookup
+
+        quality_metadata_list = self._container_registry.findContainersMetadata(type = "quality")
+        for metadata in quality_metadata_list:
+            if metadata["id"] == "empty_quality":
+                continue
+
+            definition_id = metadata["definition"]
+            quality_type = metadata["quality_type"]
+
+            root_material_id = metadata.get("material")
+            variant_name = metadata.get("variant")
+            is_global_quality = metadata.get("global_quality", False)
+            is_global_quality = is_global_quality or (root_material_id is None and variant_name is None)
+
+            # Sanity check: material+variant and is_global_quality cannot be present at the same time
+            if is_global_quality and (root_material_id or variant_name):
+                raise RuntimeError("Quality profile [%s] contains invalid data: it is a global quality but contains 'material' and 'nozzle' info." % metadata["id"])
+
+            if definition_id not in self._machine_variant_material_quality_type_to_quality_dict:
+                self._machine_variant_material_quality_type_to_quality_dict[definition_id] = QualityNode()
+            machine_node = self._machine_variant_material_quality_type_to_quality_dict[definition_id]
+
+            if is_global_quality:
+                # For global qualities, save data in the machine node
+                machine_node.addQualityMetadata(quality_type, metadata)
+                continue
+
+            if variant_name is not None:
+                # If variant_name is specified in the quality/quality_changes profile, check if material is specified,
+                # too.
+                if variant_name not in machine_node.children_map:
+                    machine_node.children_map[variant_name] = QualityNode()
+                variant_node = machine_node.children_map[variant_name]
+
+                if root_material_id is None:
+                    # If only variant_name is specified but material is not, add the quality/quality_changes metadata
+                    # into the current variant node.
+                    variant_node.addQualityMetadata(quality_type, metadata)
+                else:
+                    # If only variant_name and material are both specified, go one level deeper: create a material node
+                    # under the current variant node, and then add the quality/quality_changes metadata into the
+                    # material node.
+                    if root_material_id not in variant_node.children_map:
+                        variant_node.children_map[root_material_id] = QualityNode()
+                    material_node = variant_node.children_map[root_material_id]
+
+                    material_node.addQualityMetadata(quality_type, metadata)
+
+            else:
+                # If variant_name is not specified, check if material is specified.
+                if root_material_id is not None:
+                    if root_material_id not in machine_node.children_map:
+                        machine_node.children_map[root_material_id] = QualityNode()
+                    material_node = machine_node.children_map[root_material_id]
+
+                    material_node.addQualityMetadata(quality_type, metadata)
+
+        # Initialize the lookup tree for quality_changes profiles with following structure:
+        # <machine> -> <quality_type> -> <name>
+        quality_changes_metadata_list = self._container_registry.findContainersMetadata(type = "quality_changes")
+        for metadata in quality_changes_metadata_list:
+            if metadata["id"] == "empty_quality_changes":
+                continue
+
+            machine_definition_id = metadata["definition"]
+            quality_type = metadata["quality_type"]
+
+            if machine_definition_id not in self._machine_quality_type_to_quality_changes_dict:
+                self._machine_quality_type_to_quality_changes_dict[machine_definition_id] = QualityNode()
+            machine_node = self._machine_quality_type_to_quality_changes_dict[machine_definition_id]
+            machine_node.addQualityChangesMetadata(quality_type, metadata)
+
+        Logger.log("d", "Lookup tables updated.")
+        self.qualitiesUpdated.emit()
+
+    def _updateMaps(self):
+        self.initialize()
+
+    def _onContainerMetadataChanged(self, container):
+        self._onContainerChanged(container)
+
+    def _onContainerChanged(self, container):
+        container_type = container.getMetaDataEntry("type")
+        if container_type not in ("quality", "quality_changes"):
+            return
+
+        # update the cache table
+        self._update_timer.start()
+
+    # Updates the given quality groups' availabilities according to which extruders are being used/ enabled.
+    def _updateQualityGroupsAvailability(self, machine: "GlobalStack", quality_group_list):
+        used_extruders = set()
+        # TODO: This will change after the Machine refactoring
+        for i in range(machine.getProperty("machine_extruder_count", "value")):
+            used_extruders.add(str(i))
+
+        # Update the "is_available" flag for each quality group.
+        for quality_group in quality_group_list:
+            is_available = True
+            if quality_group.node_for_global is None:
+                is_available = False
+            if is_available:
+                for position in used_extruders:
+                    if position not in quality_group.nodes_for_extruders:
+                        is_available = False
+                        break
+
+            quality_group.is_available = is_available
+
+    # Returns a dict of "custom profile name" -> QualityChangesGroup
+    def getQualityChangesGroups(self, machine: "GlobalStack") -> dict:
+        machine_definition_id = getMachineDefinitionIDForQualitySearch(machine)
+
+        machine_node = self._machine_quality_type_to_quality_changes_dict.get(machine_definition_id)
+        if not machine_node:
+            Logger.log("i", "Cannot find node for machine def [%s] in QualityChanges lookup table", machine_definition_id)
+            return dict()
+
+        # Update availability for each QualityChangesGroup:
+        # A custom profile is always available as long as the quality_type it's based on is available
+        quality_group_dict = self.getQualityGroups(machine)
+        available_quality_type_list = [qt for qt, qg in quality_group_dict.items() if qg.is_available]
+
+        # Iterate over all quality_types in the machine node
+        quality_changes_group_dict = dict()
+        for quality_type, quality_changes_node in machine_node.quality_type_map.items():
+            for quality_changes_name, quality_changes_group in quality_changes_node.children_map.items():
+                quality_changes_group_dict[quality_changes_name] = quality_changes_group
+                quality_changes_group.is_available = quality_type in available_quality_type_list
+
+        return quality_changes_group_dict
+
+    #
+    # Gets all quality groups for the given machine. Both available and none available ones will be included.
+    # It returns a dictionary with "quality_type"s as keys and "QualityGroup"s as values.
+    # Whether a QualityGroup is available can be unknown via the field QualityGroup.is_available.
+    # For more details, see QualityGroup.
+    #
+    def getQualityGroups(self, machine: "GlobalStack") -> dict:
+        machine_definition_id = getMachineDefinitionIDForQualitySearch(machine)
+
+        # This determines if we should only get the global qualities for the global stack and skip the global qualities for the extruder stacks
+        has_variant_materials = parseBool(machine.getMetaDataEntry("has_variant_materials", False))
+
+        # To find the quality container for the GlobalStack, check in the following fall-back manner:
+        #   (1) the machine-specific node
+        #   (2) the generic node
+        machine_node = self._machine_variant_material_quality_type_to_quality_dict.get(machine_definition_id)
+        default_machine_node = self._machine_variant_material_quality_type_to_quality_dict.get(self._default_machine_definition_id)
+        nodes_to_check = [machine_node, default_machine_node]
+
+        # Iterate over all quality_types in the machine node
+        quality_group_dict = {}
+        for node in nodes_to_check:
+            if node and node.quality_type_map:
+                # Only include global qualities
+                if has_variant_materials:
+                    quality_node = list(node.quality_type_map.values())[0]
+                    is_global_quality = parseBool(quality_node.metadata.get("global_quality", False))
+                    if not is_global_quality:
+                        continue
+
+                for quality_type, quality_node in node.quality_type_map.items():
+                    quality_group = QualityGroup(quality_node.metadata["name"], quality_type)
+                    quality_group.node_for_global = quality_node
+                    quality_group_dict[quality_type] = quality_group
+                break
+
+        # Iterate over all extruders to find quality containers for each extruder
+        for position, extruder in machine.extruders.items():
+            variant_name = None
+            if extruder.variant.getId() != "empty_variant":
+                variant_name = extruder.variant.getName()
+
+            # This is a list of root material IDs to use for searching for suitable quality profiles.
+            # The root material IDs in this list are in prioritized order.
+            root_material_id_list = []
+            has_material = False  # flag indicating whether this extruder has a material assigned
+            if extruder.material.getId() != "empty_material":
+                has_material = True
+                root_material_id = extruder.material.getMetaDataEntry("base_file")
+                # Convert possible generic_pla_175 -> generic_pla
+                root_material_id = self._material_manager.getRootMaterialIDWithoutDiameter(root_material_id)
+                root_material_id_list.append(root_material_id)
+
+                # Also try to get the fallback material
+                material_type = extruder.material.getMetaDataEntry("material")
+                fallback_root_material_id = self._material_manager.getFallbackMaterialIdByMaterialType(material_type)
+                if fallback_root_material_id:
+                    root_material_id_list.append(fallback_root_material_id)
+
+            # Here we construct a list of nodes we want to look for qualities with the highest priority first.
+            # The use case is that, when we look for qualities for a machine, we first want to search in the following
+            # order:
+            #   1. machine-variant-and-material-specific qualities if exist
+            #   2. machine-variant-specific qualities if exist
+            #   3. machine-material-specific qualities if exist
+            #   4. machine-specific qualities if exist
+            #   5. generic qualities if exist
+            # Each points above can be represented as a node in the lookup tree, so here we simply put those nodes into
+            # the list with priorities as the order. Later, we just need to loop over each node in this list and fetch
+            # qualities from there.
+            nodes_to_check = []
+
+            if variant_name:
+                # In this case, we have both a specific variant and a specific material
+                variant_node = machine_node.getChildNode(variant_name)
+                if variant_node and has_material:
+                    for root_material_id in root_material_id_list:
+                        material_node = variant_node.getChildNode(root_material_id)
+                        if material_node:
+                            nodes_to_check.append(material_node)
+                            break
+                nodes_to_check.append(variant_node)
+
+            # In this case, we only have a specific material but NOT a variant
+            if has_material:
+                for root_material_id in root_material_id_list:
+                    material_node = machine_node.getChildNode(root_material_id)
+                    if material_node:
+                        nodes_to_check.append(material_node)
+                        break
+
+            nodes_to_check += [machine_node, default_machine_node]
+            for node in nodes_to_check:
+                if node and node.quality_type_map:
+                    if has_variant_materials:
+                        # Only include variant qualities; skip non global qualities
+                        quality_node = list(node.quality_type_map.values())[0]
+                        is_global_quality = parseBool(quality_node.metadata.get("global_quality", False))
+                        if is_global_quality:
+                            continue
+
+                    for quality_type, quality_node in node.quality_type_map.items():
+                        if quality_type not in quality_group_dict:
+                            quality_group = QualityGroup(quality_node.metadata["name"], quality_type)
+                            quality_group_dict[quality_type] = quality_group
+
+                        quality_group = quality_group_dict[quality_type]
+                        quality_group.nodes_for_extruders[position] = quality_node
+                    break
+
+        # Update availabilities for each quality group
+        self._updateQualityGroupsAvailability(machine, quality_group_dict.values())
+
+        return quality_group_dict
+
+    def getQualityGroupsForMachineDefinition(self, machine: "GlobalStack") -> dict:
+        machine_definition_id = getMachineDefinitionIDForQualitySearch(machine)
+
+        # To find the quality container for the GlobalStack, check in the following fall-back manner:
+        #   (1) the machine-specific node
+        #   (2) the generic node
+        machine_node = self._machine_variant_material_quality_type_to_quality_dict.get(machine_definition_id)
+        default_machine_node = self._machine_variant_material_quality_type_to_quality_dict.get(
+            self._default_machine_definition_id)
+        nodes_to_check = [machine_node, default_machine_node]
+
+        # Iterate over all quality_types in the machine node
+        quality_group_dict = dict()
+        for node in nodes_to_check:
+            if node and node.quality_type_map:
+                for quality_type, quality_node in node.quality_type_map.items():
+                    quality_group = QualityGroup(quality_node.metadata["name"], quality_type)
+                    quality_group.node_for_global = quality_node
+                    quality_group_dict[quality_type] = quality_group
+                break
+
+        return quality_group_dict
+
+    #
+    # Methods for GUI
+    #
+
+    #
+    # Remove the given quality changes group.
+    #
+    @pyqtSlot(QObject)
+    def removeQualityChangesGroup(self, quality_changes_group: "QualityChangesGroup"):
+        Logger.log("i", "Removing quality changes group [%s]", quality_changes_group.name)
+        for node in quality_changes_group.getAllNodes():
+            self._container_registry.removeContainer(node.metadata["id"])
+
+    #
+    # Rename a set of quality changes containers. Returns the new name.
+    #
+    @pyqtSlot(QObject, str, result = str)
+    def renameQualityChangesGroup(self, quality_changes_group: "QualityChangesGroup", new_name: str) -> str:
+        Logger.log("i", "Renaming QualityChangesGroup[%s] to [%s]", quality_changes_group.name, new_name)
+        if new_name == quality_changes_group.name:
+            Logger.log("i", "QualityChangesGroup name [%s] unchanged.", quality_changes_group.name)
+            return new_name
+
+        new_name = self._container_registry.uniqueName(new_name)
+        for node in quality_changes_group.getAllNodes():
+            node.getContainer().setName(new_name)
+
+        quality_changes_group.name = new_name
+
+        self._application.getMachineManager().activeQualityChanged.emit()
+        self._application.getMachineManager().activeQualityGroupChanged.emit()
+
+        return new_name
+
+    #
+    # Duplicates the given quality.
+    #
+    @pyqtSlot(str, "QVariantMap")
+    def duplicateQualityChanges(self, quality_changes_name, quality_model_item):
+        global_stack = self._application.getGlobalContainerStack()
+        if not global_stack:
+            Logger.log("i", "No active global stack, cannot duplicate quality changes.")
+            return
+
+        quality_group = quality_model_item["quality_group"]
+        quality_changes_group = quality_model_item["quality_changes_group"]
+        if quality_changes_group is None:
+            # create global quality changes only
+            new_quality_changes = self._createQualityChanges(quality_group.quality_type, quality_changes_name,
+                                                             global_stack, extruder_id = None)
+            self._container_registry.addContainer(new_quality_changes)
+        else:
+            new_name = self._container_registry.uniqueName(quality_changes_name)
+            for node in quality_changes_group.getAllNodes():
+                container = node.getContainer()
+                new_id = self._container_registry.uniqueName(container.getId())
+                self._container_registry.addContainer(container.duplicate(new_id, new_name))
+
+    #
+    # Create a quality changes container with the given setup.
+    #
+    def _createQualityChanges(self, quality_type: str, new_name: str, machine: "GlobalStack",
+                              extruder_id: Optional[str]) -> "InstanceContainer":
+        base_id = machine.definition.getId() if extruder_id is None else extruder_id
+        new_id = base_id + "_" + new_name
+        new_id = new_id.lower().replace(" ", "_")
+        new_id = self._container_registry.uniqueName(new_id)
+
+        # Create a new quality_changes container for the quality.
+        quality_changes = InstanceContainer(new_id)
+        quality_changes.setName(new_name)
+        quality_changes.addMetaDataEntry("type", "quality_changes")
+        quality_changes.addMetaDataEntry("quality_type", quality_type)
+
+        # If we are creating a container for an extruder, ensure we add that to the container
+        if extruder_id is not None:
+            quality_changes.addMetaDataEntry("extruder", extruder_id)
+
+        # If the machine specifies qualities should be filtered, ensure we match the current criteria.
+        machine_definition_id = getMachineDefinitionIDForQualitySearch(machine)
+        quality_changes.setDefinition(machine_definition_id)
+
+        quality_changes.addMetaDataEntry("setting_version", self._application.SettingVersion)
+        return quality_changes
+
+
+#
+# Gets the machine definition ID that can be used to search for Quality containers that are suitable for the given
+# machine. The rule is as follows:
+#   1. By default, the machine definition ID for quality container search will be "fdmprinter", which is the generic
+#      machine.
+#   2. If a machine has its own machine quality (with "has_machine_quality = True"), we should use the given machine's
+#      own machine definition ID for quality search.
+#      Example: for an Ultimaker 3, the definition ID should be "ultimaker3".
+#   3. When condition (2) is met, AND the machine has "quality_definition" defined in its definition file, then the
+#      definition ID specified in "quality_definition" should be used.
+#      Example: for an Ultimaker 3 Extended, it has "quality_definition = ultimaker3". This means Ultimaker 3 Extended
+#               shares the same set of qualities profiles as Ultimaker 3.
+#
+def getMachineDefinitionIDForQualitySearch(machine: "GlobalStack", default_definition_id: str = "fdmprinter") -> str:
+    machine_definition_id = default_definition_id
+    if parseBool(machine.getMetaDataEntry("has_machine_quality", False)):
+        # Only use the machine's own quality definition ID if this machine has machine quality.
+        machine_definition_id = machine.getMetaDataEntry("quality_definition")
+        if machine_definition_id is None:
+            machine_definition_id = machine.definition.getId()
+
+    return machine_definition_id

cura/Machines/QualityNode.py

@@ -0,0 +1,35 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from typing import Optional
+
+from .ContainerNode import ContainerNode
+from .QualityChangesGroup import QualityChangesGroup
+
+
+#
+# QualityNode is used for BOTH quality and quality_changes containers.
+#
+class QualityNode(ContainerNode):
+
+    def __init__(self, metadata: Optional[dict] = None):
+        super().__init__(metadata = metadata)
+        self.quality_type_map = {}  # quality_type -> QualityNode for InstanceContainer
+
+    def addQualityMetadata(self, quality_type: str, metadata: dict):
+        if quality_type not in self.quality_type_map:
+            self.quality_type_map[quality_type] = QualityNode(metadata)
+
+    def getQualityNode(self, quality_type: str) -> Optional["QualityNode"]:
+        return self.quality_type_map.get(quality_type)
+
+    def addQualityChangesMetadata(self, quality_type: str, metadata: dict):
+        if quality_type not in self.quality_type_map:
+            self.quality_type_map[quality_type] = QualityNode()
+        quality_type_node = self.quality_type_map[quality_type]
+
+        name = metadata["name"]
+        if name not in quality_type_node.children_map:
+            quality_type_node.children_map[name] = QualityChangesGroup(name, quality_type)
+        quality_changes_group = quality_type_node.children_map[name]
+        quality_changes_group.addNode(QualityNode(metadata))

cura/Machines/VariantManager.py

@@ -0,0 +1,111 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from enum import Enum
+from collections import OrderedDict
+from typing import Optional, TYPE_CHECKING
+
+from UM.Logger import Logger
+from UM.Settings.ContainerRegistry import ContainerRegistry
+from UM.Util import parseBool
+
+from cura.Machines.ContainerNode import ContainerNode
+from cura.Settings.GlobalStack import GlobalStack
+
+if TYPE_CHECKING:
+    from UM.Settings.DefinitionContainer import DefinitionContainer
+
+
+class VariantType(Enum):
+    BUILD_PLATE = "buildplate"
+    NOZZLE = "nozzle"
+
+
+ALL_VARIANT_TYPES = (VariantType.BUILD_PLATE, VariantType.NOZZLE)
+
+
+#
+# VariantManager is THE place to look for a specific variant. It maintains a variant lookup table with the following
+# structure:
+#
+#   [machine_definition_id] ->  [variant_type]  -> [variant_name]   -> ContainerNode(metadata / container)
+# Example:   "ultimaker3"   ->    "buildplate"  ->   "Glass" (if present)  -> ContainerNode
+#                                               ->    ...
+#                           ->    "nozzle"      ->   "AA 0.4"
+#                                               ->   "BB 0.8"
+#                                               ->    ...
+#
+# Note that the "container" field is not loaded in the beginning because it would defeat the purpose of lazy-loading.
+# A container is loaded when getVariant() is called to load a variant InstanceContainer.
+#
+class VariantManager:
+
+    def __init__(self, container_registry):
+        self._container_registry = container_registry  # type: ContainerRegistry
+
+        self._machine_to_variant_dict_map = dict()  # <machine_type> -> <variant_dict>
+
+        self._exclude_variant_id_list = ["empty_variant"]
+
+    #
+    # Initializes the VariantManager including:
+    #  - initializing the variant lookup table based on the metadata in ContainerRegistry.
+    #
+    def initialize(self):
+        self._machine_to_variant_dict_map = OrderedDict()
+
+        # Cache all variants from the container registry to a variant map for better searching and organization.
+        variant_metadata_list = self._container_registry.findContainersMetadata(type = "variant")
+        for variant_metadata in variant_metadata_list:
+            if variant_metadata["id"] in self._exclude_variant_id_list:
+                Logger.log("d", "Exclude variant [%s]", variant_metadata["id"])
+                continue
+
+            variant_name = variant_metadata["name"]
+            variant_definition = variant_metadata["definition"]
+            if variant_definition not in self._machine_to_variant_dict_map:
+                self._machine_to_variant_dict_map[variant_definition] = OrderedDict()
+                for variant_type in ALL_VARIANT_TYPES:
+                    self._machine_to_variant_dict_map[variant_definition][variant_type] = dict()
+
+            variant_type = variant_metadata["hardware_type"]
+            variant_type = VariantType(variant_type)
+            variant_dict = self._machine_to_variant_dict_map[variant_definition][variant_type]
+            if variant_name in variant_dict:
+                # ERROR: duplicated variant name.
+                raise RuntimeError("Found duplicated variant name [%s], type [%s] for machine [%s]" %
+                                   (variant_name, variant_type, variant_definition))
+
+            variant_dict[variant_name] = ContainerNode(metadata = variant_metadata)
+
+    #
+    # Gets the variant InstanceContainer with the given information.
+    # Almost the same as getVariantMetadata() except that this returns an InstanceContainer if present.
+    #
+    def getVariantNode(self, machine_definition_id: str, variant_name: str,
+                       variant_type: Optional["VariantType"] = VariantType.NOZZLE) -> Optional["ContainerNode"]:
+        return self._machine_to_variant_dict_map[machine_definition_id].get(variant_type, {}).get(variant_name)
+
+    def getVariantNodes(self, machine: "GlobalStack",
+                        variant_type: Optional["VariantType"] = VariantType.NOZZLE) -> dict:
+        machine_definition_id = machine.definition.getId()
+        return self._machine_to_variant_dict_map.get(machine_definition_id, {}).get(variant_type, {})
+
+    #
+    # Gets the default variant for the given machine definition.
+    #
+    def getDefaultVariantNode(self, machine_definition: "DefinitionContainer",
+                              variant_type: VariantType) -> Optional["ContainerNode"]:
+        machine_definition_id = machine_definition.getId()
+        preferred_variant_name = None
+        if variant_type == VariantType.BUILD_PLATE:
+            if parseBool(machine_definition.getMetaDataEntry("has_variant_buildplates", False)):
+                preferred_variant_name = machine_definition.getMetaDataEntry("preferred_variant_buildplate_name")
+        else:
+            if parseBool(machine_definition.getMetaDataEntry("has_variants", False)):
+                preferred_variant_name = machine_definition.getMetaDataEntry("preferred_variant_name")
+
+        node = None
+        if preferred_variant_name:
+            node = self.getVariantNode(machine_definition_id, preferred_variant_name, variant_type)
+        return node

cura/PrintInformation.py

@@ -1,27 +1,22 @@
 # Copyright (c) 2018 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
 
-from PyQt5.QtCore import QObject, pyqtSignal, pyqtProperty
-from UM.FlameProfiler import pyqtSlot
-
-from UM.Application import Application
-from UM.Logger import Logger
-from UM.Qt.Duration import Duration
-from UM.Preferences import Preferences
-from UM.Scene.SceneNode import SceneNode
-from UM.Settings.ContainerRegistry import ContainerRegistry
-from cura.Scene.CuraSceneNode import CuraSceneNode
-
-from cura.Settings.ExtruderManager import ExtruderManager
 from typing import Dict
-
 import math
 import os.path
 import unicodedata
 import json
 import re  # To create abbreviations for printer names.
 
+from PyQt5.QtCore import QObject, pyqtSignal, pyqtProperty, pyqtSlot
+
+from UM.Application import Application
+from UM.Logger import Logger
+from UM.Qt.Duration import Duration
+from UM.Preferences import Preferences
+from UM.Scene.SceneNode import SceneNode
 from UM.i18n import i18nCatalog
+
 catalog = i18nCatalog("cura")
 
 ##  A class for processing and calculating minimum, current and maximum print time as well as managing the job name
@@ -76,16 +71,19 @@ class PrintInformation(QObject):
         self._active_build_plate = 0
         self._initVariablesWithBuildPlate(self._active_build_plate)
 
-        Application.getInstance().globalContainerStackChanged.connect(self._updateJobName)
+        self._application = Application.getInstance()
-        Application.getInstance().fileLoaded.connect(self.setBaseName)
+        self._multi_build_plate_model = self._application.getMultiBuildPlateModel()
-        Application.getInstance().getBuildPlateModel().activeBuildPlateChanged.connect(self._onActiveBuildPlateChanged)
+
-        Application.getInstance().workspaceLoaded.connect(self.setProjectName)
+        self._application.globalContainerStackChanged.connect(self._updateJobName)
+        self._application.globalContainerStackChanged.connect(self.setToZeroPrintInformation)
+        self._application.fileLoaded.connect(self.setBaseName)
+        self._application.workspaceLoaded.connect(self.setProjectName)
+        self._multi_build_plate_model.activeBuildPlateChanged.connect(self._onActiveBuildPlateChanged)
 
         Preferences.getInstance().preferenceChanged.connect(self._onPreferencesChanged)
 
-        self._active_material_container = None
+        self._application.getMachineManager().rootMaterialChanged.connect(self._onActiveMaterialsChanged)
-        Application.getInstance().getMachineManager().activeMaterialChanged.connect(self._onActiveMaterialChanged)
+        self._onActiveMaterialsChanged()
-        self._onActiveMaterialChanged()
 
         self._material_amounts = []
 
@@ -200,7 +198,8 @@ class PrintInformation(QObject):
         self._current_print_time[build_plate_number].setDuration(total_estimated_time)
 
     def _calculateInformation(self, build_plate_number):
-        if Application.getInstance().getGlobalContainerStack() is None:
+        global_stack = Application.getInstance().getGlobalContainerStack()
+        if global_stack is None:
             return
 
         self._material_lengths[build_plate_number] = []
@@ -210,19 +209,17 @@ class PrintInformation(QObject):
 
         material_preference_values = json.loads(Preferences.getInstance().getValue("cura/material_settings"))
 
-        extruder_stacks = list(ExtruderManager.getInstance().getMachineExtruders(Application.getInstance().getGlobalContainerStack().getId()))
+        extruder_stacks = global_stack.extruders
-        for index, amount in enumerate(self._material_amounts):
+        for position, extruder_stack in extruder_stacks.items():
+            index = int(position)
+            if index >= len(self._material_amounts):
+                continue
+            amount = self._material_amounts[index]
             ## Find the right extruder stack. As the list isn't sorted because it's a annoying generator, we do some
             #  list comprehension filtering to solve this for us.
-            if extruder_stacks:  # Multi extrusion machine
-                extruder_stack = [extruder for extruder in extruder_stacks if extruder.getMetaDataEntry("position") == str(index)][0]
             density = extruder_stack.getMetaDataEntry("properties", {}).get("density", 0)
             material = extruder_stack.findContainer({"type": "material"})
             radius = extruder_stack.getProperty("material_diameter", "value") / 2
-            else:  # Machine with no extruder stacks
-                density = Application.getInstance().getGlobalContainerStack().getMetaDataEntry("properties", {}).get("density", 0)
-                material = Application.getInstance().getGlobalContainerStack().findContainer({"type": "material"})
-                radius = Application.getInstance().getGlobalContainerStack().getProperty("material_diameter", "value") / 2
 
             weight = float(amount) * float(density) / 1000
             cost = 0
@@ -260,25 +257,11 @@ class PrintInformation(QObject):
         if preference != "cura/material_settings":
             return
 
-        for build_plate_number in range(Application.getInstance().getBuildPlateModel().maxBuildPlate + 1):
+        for build_plate_number in range(self._multi_build_plate_model.maxBuildPlate + 1):
             self._calculateInformation(build_plate_number)
 
-    def _onActiveMaterialChanged(self):
-        if self._active_material_container:
-            try:
-                self._active_material_container.metaDataChanged.disconnect(self._onMaterialMetaDataChanged)
-            except TypeError: #pyQtSignal gives a TypeError when disconnecting from something that is already disconnected.
-                pass
-
-        active_material_id = Application.getInstance().getMachineManager().activeMaterialId
-        active_material_containers = ContainerRegistry.getInstance().findInstanceContainers(id = active_material_id)
-
-        if active_material_containers:
-            self._active_material_container = active_material_containers[0]
-            self._active_material_container.metaDataChanged.connect(self._onMaterialMetaDataChanged)
-
     def _onActiveBuildPlateChanged(self):
-        new_active_build_plate = Application.getInstance().getBuildPlateModel().activeBuildPlate
+        new_active_build_plate = self._multi_build_plate_model.activeBuildPlate
         if new_active_build_plate != self._active_build_plate:
             self._active_build_plate = new_active_build_plate
 
@@ -290,8 +273,8 @@ class PrintInformation(QObject):
             self.materialNamesChanged.emit()
             self.currentPrintTimeChanged.emit()
 
-    def _onMaterialMetaDataChanged(self, *args, **kwargs):
+    def _onActiveMaterialsChanged(self, *args, **kwargs):
-        for build_plate_number in range(Application.getInstance().getBuildPlateModel().maxBuildPlate + 1):
+        for build_plate_number in range(self._multi_build_plate_model.maxBuildPlate + 1):
             self._calculateInformation(build_plate_number)
 
     @pyqtSlot(str)
@@ -396,7 +379,9 @@ class PrintInformation(QObject):
         return result
 
     # Simulate message with zero time duration
-    def setToZeroPrintInformation(self, build_plate):
+    def setToZeroPrintInformation(self, build_plate = None):
+        if build_plate is None:
+            build_plate = self._active_build_plate
 
         # Construct the 0-time message
         temp_message = {}

cura/QualityManager.py

@@ -1,332 +0,0 @@
-# Copyright (c) 2017 Ultimaker B.V.
-# Cura is released under the terms of the LGPLv3 or higher.
-
-# This collects a lot of quality and quality changes related code which was split between ContainerManager
-# and the MachineManager and really needs to usable from both.
-from typing import Any, Dict, List, Optional, TYPE_CHECKING
-
-from UM.Application import Application
-from UM.Settings.ContainerRegistry import ContainerRegistry
-from UM.Settings.InstanceContainer import InstanceContainer
-from cura.Settings.ExtruderManager import ExtruderManager
-
-if TYPE_CHECKING:
-    from cura.Settings.GlobalStack import GlobalStack
-    from cura.Settings.ExtruderStack import ExtruderStack
-    from UM.Settings.DefinitionContainer import DefinitionContainerInterface
-
-class QualityManager:
-
-    ##  Get the singleton instance for this class.
-    @classmethod
-    def getInstance(cls) -> "QualityManager":
-        # Note: Explicit use of class name to prevent issues with inheritance.
-        if not QualityManager.__instance:
-            QualityManager.__instance = cls()
-        return QualityManager.__instance
-
-    __instance = None   # type: "QualityManager"
-
-    ##  Find a quality by name for a specific machine definition and materials.
-    #
-    #   \param quality_name
-    #   \param machine_definition (Optional) \type{DefinitionContainerInterface} If nothing is
-    #                               specified then the currently selected machine definition is used.
-    #   \param material_containers_metadata If nothing is specified then the
-    #   current set of selected materials is used.
-    #   \return the matching quality container \type{InstanceContainer}
-    def findQualityByName(self, quality_name: str, machine_definition: Optional["DefinitionContainerInterface"] = None, material_containers_metadata: Optional[List[Dict[str, Any]]] = None) -> Optional[InstanceContainer]:
-        criteria = {"type": "quality", "name": quality_name}
-        result = self._getFilteredContainersForStack(machine_definition, material_containers_metadata, **criteria)
-
-        # Fall back to using generic materials and qualities if nothing could be found.
-        if not result and material_containers_metadata and len(material_containers_metadata) == 1:
-            basic_materials = self._getBasicMaterialMetadatas(material_containers_metadata[0])
-            result = self._getFilteredContainersForStack(machine_definition, basic_materials, **criteria)
-
-        return result[0] if result else None
-
-    ##  Find a quality changes container by name.
-    #
-    #   \param quality_changes_name \type{str} the name of the quality changes container.
-    #   \param machine_definition (Optional) \type{DefinitionContainer} If nothing is
-    #                               specified then the currently selected machine definition is used..
-    #   \return the matching quality changes containers \type{List[InstanceContainer]}
-    def findQualityChangesByName(self, quality_changes_name: str, machine_definition: Optional["DefinitionContainerInterface"] = None):
-        if not machine_definition:
-            global_stack = Application.getGlobalContainerStack()
-            if not global_stack:
-                return [] #No stack, so no current definition could be found, so there are no quality changes either.
-            machine_definition = global_stack.definition
-
-        result = self.findAllQualityChangesForMachine(machine_definition)
-        result = [quality_change for quality_change in result if quality_change.getName() == quality_changes_name]
-        return result
-
-    ##  Fetch the list of available quality types for this combination of machine definition and materials.
-    #
-    #   \param machine_definition \type{DefinitionContainer}
-    #   \param material_containers \type{List[InstanceContainer]}
-    #   \return \type{List[str]}
-    def findAllQualityTypesForMachineAndMaterials(self, machine_definition: "DefinitionContainerInterface", material_containers: List[InstanceContainer]) -> List[str]:
-        # Determine the common set of quality types which can be
-        # applied to all of the materials for this machine.
-        quality_type_dict = self.__fetchQualityTypeDictForMaterial(machine_definition, material_containers[0])
-        common_quality_types = set(quality_type_dict.keys())
-        for material_container in material_containers[1:]:
-            next_quality_type_dict = self.__fetchQualityTypeDictForMaterial(machine_definition, material_container)
-            common_quality_types.intersection_update(set(next_quality_type_dict.keys()))
-
-        return list(common_quality_types)
-
-    def findAllQualitiesForMachineAndMaterials(self, machine_definition: "DefinitionContainerInterface", material_containers: List[InstanceContainer]) -> List[InstanceContainer]:
-        # Determine the common set of quality types which can be
-        # applied to all of the materials for this machine.
-        quality_type_dict = self.__fetchQualityTypeDictForMaterial(machine_definition, material_containers[0])
-        qualities = set(quality_type_dict.values())
-        for material_container in material_containers[1:]:
-            next_quality_type_dict = self.__fetchQualityTypeDictForMaterial(machine_definition, material_container)
-            qualities.intersection_update(set(next_quality_type_dict.values()))
-
-        return list(qualities)
-
-    ##  Fetches a dict of quality types names to quality profiles for a combination of machine and material.
-    #
-    #   \param machine_definition \type{DefinitionContainer} the machine definition.
-    #   \param material \type{InstanceContainer} the material.
-    #   \return \type{Dict[str, InstanceContainer]} the dict of suitable quality type names mapping to qualities.
-    def __fetchQualityTypeDictForMaterial(self, machine_definition: "DefinitionContainerInterface", material: InstanceContainer) -> Dict[str, InstanceContainer]:
-        qualities = self.findAllQualitiesForMachineMaterial(machine_definition, material)
-        quality_type_dict = {}
-        for quality in qualities:
-            quality_type_dict[quality.getMetaDataEntry("quality_type")] = quality
-        return quality_type_dict
-
-    ##  Find a quality container by quality type.
-    #
-    #   \param quality_type \type{str} the name of the quality type to search for.
-    #   \param machine_definition (Optional) \type{InstanceContainer} If nothing is
-    #                               specified then the currently selected machine definition is used.
-    #   \param material_containers_metadata If nothing is specified then the
-    #   current set of selected materials is used.
-    #   \return the matching quality container \type{InstanceContainer}
-    def findQualityByQualityType(self, quality_type: str, machine_definition: Optional["DefinitionContainerInterface"] = None, material_containers_metadata: Optional[List[Dict[str, Any]]] = None, **kwargs) -> InstanceContainer:
-        criteria = kwargs
-        criteria["type"] = "quality"
-        if quality_type:
-            criteria["quality_type"] = quality_type
-        result = self._getFilteredContainersForStack(machine_definition, material_containers_metadata, **criteria)
-        # Fall back to using generic materials and qualities if nothing could be found.
-        if not result and material_containers_metadata and len(material_containers_metadata) == 1:
-            basic_materials = self._getBasicMaterialMetadatas(material_containers_metadata[0])
-            if basic_materials:
-                result = self._getFilteredContainersForStack(machine_definition, basic_materials, **criteria)
-        return result[0] if result else None
-
-    ##  Find all suitable qualities for a combination of machine and material.
-    #
-    #   \param machine_definition \type{DefinitionContainer} the machine definition.
-    #   \param material_container \type{InstanceContainer} the material.
-    #   \return \type{List[InstanceContainer]} the list of suitable qualities.
-    def findAllQualitiesForMachineMaterial(self, machine_definition: "DefinitionContainerInterface", material_container: InstanceContainer) -> List[InstanceContainer]:
-        criteria = {"type": "quality"}
-        result = self._getFilteredContainersForStack(machine_definition, [material_container.getMetaData()], **criteria)
-        if not result:
-            basic_materials = self._getBasicMaterialMetadatas(material_container.getMetaData())
-            if basic_materials:
-                result = self._getFilteredContainersForStack(machine_definition, basic_materials, **criteria)
-
-        return result
-
-    ##  Find all quality changes for a machine.
-    #
-    #   \param machine_definition \type{DefinitionContainer} the machine definition.
-    #   \return \type{List[InstanceContainer]} the list of quality changes
-    def findAllQualityChangesForMachine(self, machine_definition: "DefinitionContainerInterface") -> List[InstanceContainer]:
-        if machine_definition.getMetaDataEntry("has_machine_quality"):
-            definition_id = machine_definition.getId()
-        else:
-            definition_id = "fdmprinter"
-
-        filter_dict = { "type": "quality_changes", "definition": definition_id }
-        quality_changes_list = ContainerRegistry.getInstance().findInstanceContainers(**filter_dict)
-        return quality_changes_list
-
-    def findAllExtruderDefinitionsForMachine(self, machine_definition: "DefinitionContainerInterface") -> List["DefinitionContainerInterface"]:
-        filter_dict = { "machine": machine_definition.getId() }
-        return ContainerRegistry.getInstance().findDefinitionContainers(**filter_dict)
-
-    ##  Find all quality changes for a given extruder.
-    #
-    #   \param extruder_definition The extruder to find the quality changes for.
-    #   \return The list of quality changes for the given extruder.
-    def findAllQualityChangesForExtruder(self, extruder_definition: "DefinitionContainerInterface") -> List[InstanceContainer]:
-        filter_dict = {"type": "quality_changes", "extruder": extruder_definition.getId()}
-        return ContainerRegistry.getInstance().findInstanceContainers(**filter_dict)
-
-    ##  Find all usable qualities for a machine and extruders.
-    #
-    #   Finds all of the qualities for this combination of machine and extruders.
-    #   Only one quality per quality type is returned. i.e. if there are 2 qualities with quality_type=normal
-    #   then only one of then is returned (at random).
-    #
-    #   \param global_container_stack \type{GlobalStack} the global machine definition
-    #   \param extruder_stacks \type{List[ExtruderStack]} the list of extruder stacks
-    #   \return \type{List[InstanceContainer]} the list of the matching qualities. The quality profiles
-    #       return come from the first extruder in the given list of extruders.
-    def findAllUsableQualitiesForMachineAndExtruders(self, global_container_stack: "GlobalStack", extruder_stacks: List["ExtruderStack"]) -> List[InstanceContainer]:
-        global_machine_definition = global_container_stack.getBottom()
-
-        machine_manager = Application.getInstance().getMachineManager()
-        active_stack_id = machine_manager.activeStackId
-
-        materials = []
-
-        for stack in extruder_stacks:
-            if stack.getId() == active_stack_id and machine_manager.newMaterial:
-                materials.append(machine_manager.newMaterial)
-            else:
-                materials.append(stack.material)
-
-        quality_types = self.findAllQualityTypesForMachineAndMaterials(global_machine_definition, materials)
-
-        # Map the list of quality_types to InstanceContainers
-        qualities = self.findAllQualitiesForMachineMaterial(global_machine_definition, materials[0])
-        quality_type_dict = {}
-        for quality in qualities:
-            quality_type_dict[quality.getMetaDataEntry("quality_type")] = quality
-
-        return [quality_type_dict[quality_type] for quality_type in quality_types]
-
-    ##  Fetch more basic versions of a material.
-    #
-    #   This tries to find a generic or basic version of the given material.
-    #   \param material_container \type{Dict[str, Any]} The metadata of a
-    #   material to find the basic versions of.
-    #   \return \type{List[Dict[str, Any]]} A list of the metadata of basic
-    #   materials, or an empty list if none could be found.
-    def _getBasicMaterialMetadatas(self, material_container: Dict[str, Any]) -> List[Dict[str, Any]]:
-        if "definition" not in material_container:
-            definition_id = "fdmprinter"
-        else:
-            material_container_definition = ContainerRegistry.getInstance().findDefinitionContainersMetadata(id = material_container["definition"])
-            if not material_container_definition:
-                definition_id = "fdmprinter"
-            else:
-                material_container_definition = material_container_definition[0]
-                if "has_machine_quality" not in material_container_definition:
-                    definition_id = "fdmprinter"
-                else:
-                    definition_id = material_container_definition.get("quality_definition", material_container_definition["id"])
-
-        base_material = material_container.get("material")
-        if base_material:
-            # There is a basic material specified
-            criteria = {
-                "type": "material",
-                "name": base_material,
-                "definition": definition_id,
-                "variant": material_container.get("variant")
-            }
-            containers = ContainerRegistry.getInstance().findInstanceContainersMetadata(**criteria)
-            return containers
-
-        return []
-
-    def _getFilteredContainers(self, **kwargs):
-        return self._getFilteredContainersForStack(None, None, **kwargs)
-
-    def _getFilteredContainersForStack(self, machine_definition: "DefinitionContainerInterface" = None, material_metadata: Optional[List[Dict[str, Any]]] = None, **kwargs):
-        # Fill in any default values.
-        if machine_definition is None:
-            machine_definition = Application.getInstance().getGlobalContainerStack().getBottom()
-            quality_definition_id = machine_definition.getMetaDataEntry("quality_definition")
-            if quality_definition_id is not None:
-                machine_definition = ContainerRegistry.getInstance().findDefinitionContainers(id = quality_definition_id)[0]
-
-        if not material_metadata:
-            active_stacks = ExtruderManager.getInstance().getActiveGlobalAndExtruderStacks()
-            if active_stacks:
-                material_metadata = [stack.material.getMetaData() for stack in active_stacks]
-
-        criteria = kwargs
-        filter_by_material = False
-
-        machine_definition = self.getParentMachineDefinition(machine_definition)
-        criteria["definition"] = machine_definition.getId()
-        found_containers_with_machine_definition = ContainerRegistry.getInstance().findInstanceContainersMetadata(**criteria)
-        whole_machine_definition = self.getWholeMachineDefinition(machine_definition)
-        if whole_machine_definition.getMetaDataEntry("has_machine_quality"):
-            definition_id = machine_definition.getMetaDataEntry("quality_definition", whole_machine_definition.getId())
-            criteria["definition"] = definition_id
-
-            filter_by_material = whole_machine_definition.getMetaDataEntry("has_materials")
-        # only fall back to "fdmprinter" when there is no container for this machine
-        elif not found_containers_with_machine_definition:
-            criteria["definition"] = "fdmprinter"
-
-        # Stick the material IDs in a set
-        material_ids = set()
-
-        for material_instance in material_metadata:
-            if material_instance is not None:
-                # Add the parent material too.
-                for basic_material in self._getBasicMaterialMetadatas(material_instance):
-                    material_ids.add(basic_material["id"])
-                material_ids.add(material_instance["id"])
-        containers = ContainerRegistry.getInstance().findInstanceContainers(**criteria)
-
-        result = []
-        for container in containers:
-            # If the machine specifies we should filter by material, exclude containers that do not match any active material.
-            if filter_by_material and container.getMetaDataEntry("material") not in material_ids and "global_quality" not in kwargs:
-                continue
-            result.append(container)
-
-        return result
-
-    ##  Get the parent machine definition of a machine definition.
-    #
-    #    \param machine_definition \type{DefinitionContainer} This may be a normal machine definition or
-    #               an extruder definition.
-    #    \return  \type{DefinitionContainer} the parent machine definition. If the given machine
-    #               definition doesn't have a parent then it is simply returned.
-    def getParentMachineDefinition(self, machine_definition: "DefinitionContainerInterface") -> "DefinitionContainerInterface":
-        container_registry = ContainerRegistry.getInstance()
-
-        machine_entry = machine_definition.getMetaDataEntry("machine")
-        if machine_entry is None:
-            # We have a normal (whole) machine defintion
-            quality_definition = machine_definition.getMetaDataEntry("quality_definition")
-            if quality_definition is not None:
-                parent_machine_definition = container_registry.findDefinitionContainers(id = quality_definition)[0]
-                return self.getParentMachineDefinition(parent_machine_definition)
-            else:
-                return machine_definition
-        else:
-            # This looks like an extruder. Find the rest of the machine.
-            whole_machine = container_registry.findDefinitionContainers(id = machine_entry)[0]
-            parent_machine = self.getParentMachineDefinition(whole_machine)
-            if whole_machine is parent_machine:
-                # This extruder already belongs to a 'parent' machine def.
-                return machine_definition
-            else:
-                # Look up the corresponding extruder definition in the parent machine definition.
-                extruder_position = machine_definition.getMetaDataEntry("position")
-                parent_extruder_id = parent_machine.getMetaDataEntry("machine_extruder_trains")[extruder_position]
-                return container_registry.findDefinitionContainers(id = parent_extruder_id)[0]
-
-    ##  Get the whole/global machine definition from an extruder definition.
-    #
-    #    \param machine_definition \type{DefinitionContainer} This may be a normal machine definition or
-    #               an extruder definition.
-    #    \return \type{DefinitionContainerInterface}
-    def getWholeMachineDefinition(self, machine_definition: "DefinitionContainerInterface") -> "DefinitionContainerInterface":
-        machine_entry = machine_definition.getMetaDataEntry("machine")
-        if machine_entry is None:
-            # This already is a 'global' machine definition.
-            return machine_definition
-        else:
-            container_registry = ContainerRegistry.getInstance()
-            whole_machine = container_registry.findDefinitionContainers(id = machine_entry)[0]
-            return whole_machine

cura/Scene/ConvexHullNode.py

@@ -68,7 +68,7 @@ class ConvexHullNode(SceneNode):
             ConvexHullNode.shader.setUniformValue("u_opacity", 0.6)
 
         if self.getParent():
-            if self.getMeshData() and isinstance(self._node, SceneNode) and self._node.callDecoration("getBuildPlateNumber") == Application.getInstance().getBuildPlateModel().activeBuildPlate:
+            if self.getMeshData() and isinstance(self._node, SceneNode) and self._node.callDecoration("getBuildPlateNumber") == Application.getInstance().getMultiBuildPlateModel().activeBuildPlate:
                 renderer.queueNode(self, transparent = True, shader = ConvexHullNode.shader, backface_cull = True, sort = -8)
                 if self._convex_hull_head_mesh:
                     renderer.queueNode(self, shader = ConvexHullNode.shader, transparent = True, mesh = self._convex_hull_head_mesh, backface_cull = True, sort = -8)

cura/Scene/CuraSceneController.py

@@ -4,7 +4,7 @@ from PyQt5.QtCore import Qt, pyqtSlot, QObject
 from PyQt5.QtWidgets import QApplication
 
 from cura.ObjectsModel import ObjectsModel
-from cura.BuildPlateModel import BuildPlateModel
+from cura.Machines.Models.MultiBuildPlateModel import MultiBuildPlateModel
 
 from UM.Application import Application
 from UM.Scene.Iterator.DepthFirstIterator import DepthFirstIterator
@@ -16,11 +16,11 @@ from UM.Signal import Signal
 class CuraSceneController(QObject):
     activeBuildPlateChanged = Signal()
 
-    def __init__(self, objects_model: ObjectsModel, build_plate_model: BuildPlateModel):
+    def __init__(self, objects_model: ObjectsModel, multi_build_plate_model: MultiBuildPlateModel):
         super().__init__()
 
         self._objects_model = objects_model
-        self._build_plate_model = build_plate_model
+        self._multi_build_plate_model = multi_build_plate_model
         self._active_build_plate = -1
 
         self._last_selected_index = 0
@@ -41,9 +41,9 @@ class CuraSceneController(QObject):
             self._max_build_plate = max_build_plate
             changed = True
         if changed:
-            self._build_plate_model.setMaxBuildPlate(self._max_build_plate)
+            self._multi_build_plate_model.setMaxBuildPlate(self._max_build_plate)
             build_plates = [{"name": "Build Plate %d" % (i + 1), "buildPlateNumber": i} for i in range(self._max_build_plate + 1)]
-            self._build_plate_model.setItems(build_plates)
+            self._multi_build_plate_model.setItems(build_plates)
             if self._active_build_plate > self._max_build_plate:
                 build_plate_number = 0
                 if self._last_selected_index >= 0:  # go to the buildplate of the item you last selected
@@ -104,12 +104,12 @@ class CuraSceneController(QObject):
         self._active_build_plate = nr
         Selection.clear()
 
-        self._build_plate_model.setActiveBuildPlate(nr)
+        self._multi_build_plate_model.setActiveBuildPlate(nr)
         self._objects_model.setActiveBuildPlate(nr)
         self.activeBuildPlateChanged.emit()
 
     @staticmethod
     def createCuraSceneController():
         objects_model = Application.getInstance().getObjectsModel()
-        build_plate_model = Application.getInstance().getBuildPlateModel()
+        multi_build_plate_model = Application.getInstance().getMultiBuildPlateModel()
-        return CuraSceneController(objects_model = objects_model, build_plate_model = build_plate_model)
+        return CuraSceneController(objects_model = objects_model, multi_build_plate_model = multi_build_plate_model)

cura/Scene/CuraSceneNode.py

@@ -20,10 +20,10 @@ class CuraSceneNode(SceneNode):
         return self._outside_buildarea or self.callDecoration("getBuildPlateNumber") < 0
 
     def isVisible(self):
-        return super().isVisible() and self.callDecoration("getBuildPlateNumber") == Application.getInstance().getBuildPlateModel().activeBuildPlate
+        return super().isVisible() and self.callDecoration("getBuildPlateNumber") == Application.getInstance().getMultiBuildPlateModel().activeBuildPlate
 
     def isSelectable(self) -> bool:
-        return super().isSelectable() and self.callDecoration("getBuildPlateNumber") == Application.getInstance().getBuildPlateModel().activeBuildPlate
+        return super().isSelectable() and self.callDecoration("getBuildPlateNumber") == Application.getInstance().getMultiBuildPlateModel().activeBuildPlate
 
     ##  Get the extruder used to print this node. If there is no active node, then the extruder in position zero is returned
     #   TODO The best way to do it is by adding the setActiveExtruder decorator to every node when is loaded

cura/Settings/ContainerManager.py

@@ -1,16 +1,14 @@
 # Copyright (c) 2017 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
 
-import copy
 import os.path
 import urllib.parse
 import uuid
-from typing import Any, Dict, List, Union
+from typing import Dict, Union
 
 from PyQt5.QtCore import QObject, QUrl, QVariant
 from UM.FlameProfiler import pyqtSlot
 from PyQt5.QtWidgets import QMessageBox
-from UM.Util import parseBool
 
 from UM.PluginRegistry import PluginRegistry
 from UM.SaveFile import SaveFile
@@ -22,7 +20,6 @@ from UM.Application import Application
 from UM.Settings.ContainerStack import ContainerStack
 from UM.Settings.DefinitionContainer import DefinitionContainer
 from UM.Settings.InstanceContainer import InstanceContainer
-from cura.QualityManager import QualityManager
 
 from UM.MimeTypeDatabase import MimeTypeNotFoundError
 from UM.Settings.ContainerRegistry import ContainerRegistry
@@ -30,9 +27,11 @@ from UM.Settings.ContainerRegistry import ContainerRegistry
 from UM.i18n import i18nCatalog
 
 from cura.Settings.ExtruderManager import ExtruderManager
+from cura.Settings.ExtruderStack import ExtruderStack
 
 catalog = i18nCatalog("cura")
 
+
 ##  Manager class that contains common actions to deal with containers in Cura.
 #
 #   This is primarily intended as a class to be able to perform certain actions
@@ -42,154 +41,12 @@ class ContainerManager(QObject):
     def __init__(self, parent = None):
         super().__init__(parent)
 
+        self._application = Application.getInstance()
         self._container_registry = ContainerRegistry.getInstance()
-        self._machine_manager = Application.getInstance().getMachineManager()
+        self._machine_manager = self._application.getMachineManager()
+        self._material_manager = self._application.getMaterialManager()
         self._container_name_filters = {}
 
-    ##  Create a duplicate of the specified container
-    #
-    #   This will create and add a duplicate of the container corresponding
-    #   to the container ID.
-    #
-    #   \param container_id \type{str} The ID of the container to duplicate.
-    #
-    #   \return The ID of the new container, or an empty string if duplication failed.
-    @pyqtSlot(str, result = str)
-    def duplicateContainer(self, container_id):
-        #TODO: It should be able to duplicate a container of which only the metadata is known.
-        containers = self._container_registry.findContainers(id = container_id)
-        if not containers:
-            Logger.log("w", "Could duplicate container %s because it was not found.", container_id)
-            return ""
-
-        container = containers[0]
-        new_container = self.duplicateContainerInstance(container)
-        return new_container.getId()
-
-    ##  Create a duplicate of the given container instance
-    #
-    #   This will create and add a duplicate of the container that was passed.
-    #
-    #   \param container \type{ContainerInterface} The container to duplicate.
-    #
-    #   \return The duplicated container, or None if duplication failed.
-    def duplicateContainerInstance(self, container):
-        new_container = None
-        new_name = self._container_registry.uniqueName(container.getName())
-        # Only InstanceContainer has a duplicate method at the moment.
-        # So fall back to serialize/deserialize when no duplicate method exists.
-        if hasattr(container, "duplicate"):
-            new_container = container.duplicate(new_name)
-        else:
-            new_container = container.__class__(new_name)
-            new_container.deserialize(container.serialize())
-            new_container.setName(new_name)
-
-        # TODO: we probably don't want to add it to the registry here!
-        if new_container:
-            self._container_registry.addContainer(new_container)
-
-        return new_container
-
-    ##  Change the name of a specified container to a new name.
-    #
-    #   \param container_id \type{str} The ID of the container to change the name of.
-    #   \param new_id \type{str} The new ID of the container.
-    #   \param new_name \type{str} The new name of the specified container.
-    #
-    #   \return True if successful, False if not.
-    @pyqtSlot(str, str, str, result = bool)
-    def renameContainer(self, container_id, new_id, new_name):
-        containers = self._container_registry.findContainers(id = container_id)
-        if not containers:
-            Logger.log("w", "Could rename container %s because it was not found.", container_id)
-            return False
-
-        container = containers[0]
-        # First, remove the container from the registry. This will clean up any files related to the container.
-        self._container_registry.removeContainer(container_id)
-
-        # Ensure we have a unique name for the container
-        new_name = self._container_registry.uniqueName(new_name)
-
-        # Then, update the name and ID of the container
-        container.setName(new_name)
-        container._id = new_id # TODO: Find a nicer way to set a new, unique ID
-
-        # Finally, re-add the container so it will be properly serialized again.
-        self._container_registry.addContainer(container)
-
-        return True
-
-    ##  Remove the specified container.
-    #
-    #   \param container_id \type{str} The ID of the container to remove.
-    #
-    #   \return True if the container was successfully removed, False if not.
-    @pyqtSlot(str, result = bool)
-    def removeContainer(self, container_id):
-        containers = self._container_registry.findContainers(id = container_id)
-        if not containers:
-            Logger.log("w", "Could not remove container %s because it was not found.", container_id)
-            return False
-
-        self._container_registry.removeContainer(containers[0].getId())
-
-        return True
-
-    ##  Merge a container with another.
-    #
-    #   This will try to merge one container into the other, by going through the container
-    #   and setting the right properties on the other container.
-    #
-    #   \param merge_into_id \type{str} The ID of the container to merge into.
-    #   \param merge_id \type{str} The ID of the container to merge.
-    #
-    #   \return True if successfully merged, False if not.
-    @pyqtSlot(str, result = bool)
-    def mergeContainers(self, merge_into_id, merge_id):
-        containers = self._container_registry.findContainers(id = merge_into_id)
-        if not containers:
-            Logger.log("w", "Could merge into container %s because it was not found.", merge_into_id)
-            return False
-
-        merge_into = containers[0]
-
-        containers = self._container_registry.findContainers(id = merge_id)
-        if not containers:
-            Logger.log("w", "Could not merge container %s because it was not found", merge_id)
-            return False
-
-        merge = containers[0]
-
-        if not isinstance(merge, type(merge_into)):
-            Logger.log("w", "Cannot merge two containers of different types")
-            return False
-
-        self._performMerge(merge_into, merge)
-
-        return True
-
-    ##  Clear the contents of a container.
-    #
-    #   \param container_id \type{str} The ID of the container to clear.
-    #
-    #   \return True if successful, False if not.
-    @pyqtSlot(str, result = bool)
-    def clearContainer(self, container_id):
-        if self._container_registry.isReadOnly(container_id):
-            Logger.log("w", "Cannot clear read-only container %s", container_id)
-            return False
-
-        containers = self._container_registry.findContainers(id = container_id)
-        if not containers:
-            Logger.log("w", "Could clear container %s because it was not found.", container_id)
-            return False
-
-        containers[0].clear()
-
-        return True
-
     @pyqtSlot(str, str, result=str)
     def getContainerMetaDataEntry(self, container_id, entry_name):
         metadatas = self._container_registry.findContainersMetadata(id = container_id)
@@ -211,18 +68,15 @@ class ContainerManager(QObject):
     #   \param entry_value The new value of the entry.
     #
     #   \return True if successful, False if not.
-    @pyqtSlot(str, str, str, result = bool)
+    #  TODO: This is ONLY used by MaterialView for material containers. Maybe refactor this.
-    def setContainerMetaDataEntry(self, container_id, entry_name, entry_value):
+    @pyqtSlot("QVariant", str, str)
-        if self._container_registry.isReadOnly(container_id):
+    def setContainerMetaDataEntry(self, container_node, entry_name, entry_value):
-            Logger.log("w", "Cannot set metadata of read-only container %s.", container_id)
+        root_material_id = container_node.metadata["base_file"]
+        if self._container_registry.isReadOnly(root_material_id):
+            Logger.log("w", "Cannot set metadata of read-only container %s.", root_material_id)
             return False
 
-        containers = self._container_registry.findContainers(id = container_id) #We need the complete container, since we need to know whether the container is read-only or not.
+        material_group = self._material_manager.getMaterialGroup(root_material_id)
-        if not containers:
-            Logger.log("w", "Could not set metadata of container %s because it was not found.", container_id)
-            return False
-
-        container = containers[0]
 
         entries = entry_name.split("/")
         entry_name = entries.pop()
@@ -230,7 +84,7 @@ class ContainerManager(QObject):
         sub_item_changed = False
         if entries:
             root_name = entries.pop(0)
-            root = container.getMetaDataEntry(root_name)
+            root = material_group.root_material_node.metadata.get(root_name)
 
             item = root
             for _ in range(len(entries)):
@@ -243,12 +97,11 @@ class ContainerManager(QObject):
             entry_name = root_name
             entry_value = root
 
+        container = material_group.root_material_node.getContainer()
         container.setMetaDataEntry(entry_name, entry_value)
         if sub_item_changed: #If it was only a sub-item that has changed then the setMetaDataEntry won't correctly notice that something changed, and we must manually signal that the metadata changed.
             container.metaDataChanged.emit(container)
 
-        return True
-
     ##  Set a setting property of the specified container.
     #
     #   This will set the specified property of the specified setting of the container
@@ -306,60 +159,6 @@ class ContainerManager(QObject):
 
         return container.getProperty(setting_key, property_name)
 
-    ##  Set the name of the specified container.
-    @pyqtSlot(str, str, result = bool)
-    def setContainerName(self, container_id, new_name):
-        if self._container_registry.isReadOnly(container_id):
-            Logger.log("w", "Cannot set name of read-only container %s.", container_id)
-            return False
-
-        containers = self._container_registry.findContainers(id = container_id) #We need to get the full container, not just metadata, since we need to know whether it's read-only.
-        if not containers:
-            Logger.log("w", "Could not set name of container %s because it was not found.", container_id)
-            return False
-
-        containers[0].setName(new_name)
-
-        return True
-
-    ##  Find instance containers matching certain criteria.
-    #
-    #   This effectively forwards to
-    #   ContainerRegistry::findInstanceContainersMetadata.
-    #
-    #   \param criteria A dict of key - value pairs to search for.
-    #
-    #   \return A list of container IDs that match the given criteria.
-    @pyqtSlot("QVariantMap", result = "QVariantList")
-    def findInstanceContainers(self, criteria):
-        return [entry["id"] for entry in self._container_registry.findInstanceContainersMetadata(**criteria)]
-
-    @pyqtSlot(str, result = bool)
-    def isContainerUsed(self, container_id):
-        Logger.log("d", "Checking if container %s is currently used", container_id)
-        # check if this is a material container. If so, check if any material with the same base is being used by any
-        # stacks.
-        container_ids_to_check = [container_id]
-        container_results = self._container_registry.findInstanceContainersMetadata(id = container_id, type = "material")
-        if container_results:
-            this_container = container_results[0]
-            material_base_file = this_container["id"]
-            if "base_file" in this_container:
-                material_base_file = this_container["base_file"]
-            # check all material container IDs with the same base
-            material_containers = self._container_registry.findInstanceContainersMetadata(base_file = material_base_file,
-                                                                                  type = "material")
-            if material_containers:
-                container_ids_to_check = [container["id"] for container in material_containers]
-
-        all_stacks = self._container_registry.findContainerStacks()
-        for stack in all_stacks:
-            for used_container_id in container_ids_to_check:
-                if used_container_id in [child.getId() for child in stack.getContainers()]:
-                    Logger.log("d", "The container is in use by %s", stack.getId())
-                    return True
-        return False
-
     @pyqtSlot(str, result = str)
     def makeUniqueName(self, original_name):
         return self._container_registry.uniqueName(original_name)
@@ -410,7 +209,7 @@ class ContainerManager(QObject):
             return {"status": "error", "message": "Invalid path"}
 
         mime_type = None
-        if not file_type in self._container_name_filters:
+        if file_type not in self._container_name_filters:
             try:
                 mime_type = MimeTypeDatabase.getMimeTypeForFile(file_url)
             except MimeTypeNotFoundError:
@@ -450,7 +249,7 @@ class ContainerManager(QObject):
         with SaveFile(file_url, "w") as f:
             f.write(contents)
 
-        return { "status": "success", "message": "Succesfully exported container", "path": file_url}
+        return {"status": "success", "message": "Successfully exported container", "path": file_url}
 
     ##  Imports a profile from a file
     #
@@ -522,7 +321,7 @@ class ContainerManager(QObject):
 
             self._performMerge(quality_changes, stack.getTop())
 
-        self._machine_manager.activeQualityChanged.emit()
+        self._machine_manager.activeQualityChangesGroupChanged.emit()
 
         return True
 
@@ -547,18 +346,16 @@ class ContainerManager(QObject):
     #   This will go through the global and extruder stacks and create quality_changes containers from
     #   the user containers in each stack. These then replace the quality_changes containers in the
     #   stack and clear the user settings.
-    #
+    @pyqtSlot(str)
-    #   \return \type{bool} True if the operation was successfully, False if not.
-    @pyqtSlot(str, result = bool)
     def createQualityChanges(self, base_name):
         global_stack = Application.getInstance().getGlobalContainerStack()
         if not global_stack:
-            return False
+            return
 
-        active_quality_name = self._machine_manager.activeQualityName
+        active_quality_name = self._machine_manager.activeQualityOrQualityChangesName
         if active_quality_name == "":
             Logger.log("w", "No quality container found in stack %s, cannot create profile", global_stack.getId())
-            return False
+            return
 
         self._machine_manager.blurSettings.emit()
         if base_name is None or base_name == "":
@@ -567,382 +364,54 @@ class ContainerManager(QObject):
 
         # Go through the active stacks and create quality_changes containers from the user containers.
         for stack in ExtruderManager.getInstance().getActiveGlobalAndExtruderStacks():
-            user_container = stack.getTop()
+            user_container = stack.userChanges
             quality_container = stack.quality
             quality_changes_container = stack.qualityChanges
             if not quality_container or not quality_changes_container:
                 Logger.log("w", "No quality or quality changes container found in stack %s, ignoring it", stack.getId())
                 continue
 
-            extruder_id = None if stack is global_stack else QualityManager.getInstance().getParentMachineDefinition(stack.getBottom()).getId()
+            extruder_definition_id = None
-            new_changes = self._createQualityChanges(quality_container, unique_name,
+            if isinstance(stack, ExtruderStack):
-                                                     Application.getInstance().getGlobalContainerStack().getBottom(),
+                extruder_definition_id = stack.definition.getId()
-                                                     extruder_id)
+            quality_type = quality_container.getMetaDataEntry("quality_type")
+            new_changes = self._createQualityChanges(quality_type, unique_name, global_stack, extruder_definition_id)
             self._performMerge(new_changes, quality_changes_container, clear_settings = False)
             self._performMerge(new_changes, user_container)
 
             self._container_registry.addContainer(new_changes)
-            stack.replaceContainer(stack.getContainerIndex(quality_changes_container), new_changes)
-
-        self._machine_manager.activeQualityChanged.emit()
-        return True
-
-    ##  Remove all quality changes containers matching a specified name.
-    #
-    #   This will search for quality_changes containers matching the supplied name and remove them.
-    #   Note that if the machine specifies that qualities should be filtered by machine and/or material
-    #   only the containers related to the active machine/material are removed.
-    #
-    #   \param quality_name The name of the quality changes to remove.
-    #
-    #   \return \type{bool} True if successful, False if not.
-    @pyqtSlot(str, result = bool)
-    def removeQualityChanges(self, quality_name):
-        Logger.log("d", "Attempting to remove the quality change containers with name %s", quality_name)
-        containers_found = False
-
-        if not quality_name:
-            return containers_found  # Without a name we will never find a container to remove.
-
-        # If the container that is being removed is the currently active quality, set another quality as the active quality
-        activate_quality = quality_name == self._machine_manager.activeQualityName
-        activate_quality_type = None
-
-        global_stack = Application.getInstance().getGlobalContainerStack()
-        if not global_stack or not quality_name:
-            return ""
-        machine_definition = QualityManager.getInstance().getParentMachineDefinition(global_stack.getBottom())
-
-        for container in QualityManager.getInstance().findQualityChangesByName(quality_name, machine_definition):
-            containers_found = True
-            if activate_quality and not activate_quality_type:
-                activate_quality_type = container.getMetaDataEntry("quality")
-            self._container_registry.removeContainer(container.getId())
-
-        if not containers_found:
-            Logger.log("d", "Unable to remove quality containers, as we did not find any by the name of %s", quality_name)
-
-        elif activate_quality:
-            definition_id = "fdmprinter" if not self._machine_manager.filterQualityByMachine else self._machine_manager.activeDefinitionId
-            containers = self._container_registry.findInstanceContainersMetadata(type = "quality", definition = definition_id, quality_type = activate_quality_type)
-            if containers:
-                self._machine_manager.setActiveQuality(containers[0]["id"])
-                self._machine_manager.activeQualityChanged.emit()
-
-        return containers_found
-
-    ##  Rename a set of quality changes containers.
-    #
-    #   This will search for quality_changes containers matching the supplied name and rename them.
-    #   Note that if the machine specifies that qualities should be filtered by machine and/or material
-    #   only the containers related to the active machine/material are renamed.
-    #
-    #   \param quality_name The name of the quality changes containers to rename.
-    #   \param new_name The new name of the quality changes.
-    #
-    #   \return True if successful, False if not.
-    @pyqtSlot(str, str, result = bool)
-    def renameQualityChanges(self, quality_name, new_name):
-        Logger.log("d", "User requested QualityChanges container rename of %s to %s", quality_name, new_name)
-        if not quality_name or not new_name:
-            return False
-
-        if quality_name == new_name:
-            Logger.log("w", "Unable to rename %s to %s, because they are the same.", quality_name, new_name)
-            return True
-
-        global_stack = Application.getInstance().getGlobalContainerStack()
-        if not global_stack:
-            return False
-
-        self._machine_manager.blurSettings.emit()
-
-        new_name = self._container_registry.uniqueName(new_name)
-
-        container_registry = self._container_registry
-
-        containers_to_rename = self._container_registry.findInstanceContainersMetadata(type = "quality_changes", name = quality_name)
-
-        for container in containers_to_rename:
-            stack_id = global_stack.getId()
-            if "extruder" in container:
-                stack_id = container["extruder"]
-            container_registry.renameContainer(container["id"], new_name, self._createUniqueId(stack_id, new_name))
-
-        if not containers_to_rename:
-            Logger.log("e", "Unable to rename %s, because we could not find the profile", quality_name)
-
-        self._machine_manager.activeQualityChanged.emit()
-        return True
-
-    ##  Duplicate a specified set of quality or quality_changes containers.
-    #
-    #   This will search for containers matching the specified name. If the container is a "quality" type container, a new
-    #   quality_changes container will be created with the specified quality as base. If the container is a "quality_changes"
-    #   container, it is simply duplicated and renamed.
-    #
-    #   \param quality_name The name of the quality to duplicate.
-    #
-    #   \return A string containing the name of the duplicated containers, or an empty string if it failed.
-    @pyqtSlot(str, str, result = str)
-    def duplicateQualityOrQualityChanges(self, quality_name, base_name):
-        global_stack = Application.getInstance().getGlobalContainerStack()
-        if not global_stack or not quality_name:
-            return ""
-        machine_definition = global_stack.definition
-
-        active_stacks = ExtruderManager.getInstance().getActiveGlobalAndExtruderStacks()
-        if active_stacks is None:
-            return ""
-        material_metadatas = [stack.material.getMetaData() for stack in active_stacks]
-
-        result = self._duplicateQualityOrQualityChangesForMachineType(quality_name, base_name,
-                    QualityManager.getInstance().getParentMachineDefinition(machine_definition),
-                    material_metadatas)
-        return result[0].getName() if result else ""
-
-    ##  Duplicate a quality or quality changes profile specific to a machine type
-    #
-    #   \param quality_name The name of the quality or quality changes container to duplicate.
-    #   \param base_name The desired name for the new container.
-    #   \param machine_definition The machine with the specific machine type.
-    #   \param material_metadatas Metadata of materials
-    #   \return List of duplicated quality profiles.
-    def _duplicateQualityOrQualityChangesForMachineType(self, quality_name: str, base_name: str, machine_definition: DefinitionContainer, material_metadatas: List[Dict[str, Any]]) -> List[InstanceContainer]:
-        Logger.log("d", "Attempting to duplicate the quality %s", quality_name)
-
-        if base_name is None:
-            base_name = quality_name
-        # Try to find a Quality with the name.
-        container = QualityManager.getInstance().findQualityByName(quality_name, machine_definition, material_metadatas)
-        if container:
-            Logger.log("d", "We found a quality to duplicate.")
-            return self._duplicateQualityForMachineType(container, base_name, machine_definition)
-        Logger.log("d", "We found a quality_changes to duplicate.")
-        # Assume it is a quality changes.
-        return self._duplicateQualityChangesForMachineType(quality_name, base_name, machine_definition)
-
-    # Duplicate a quality profile
-    def _duplicateQualityForMachineType(self, quality_container, base_name, machine_definition) -> List[InstanceContainer]:
-        if base_name is None:
-            base_name = quality_container.getName()
-        new_name = self._container_registry.uniqueName(base_name)
-
-        new_change_instances = []
-
-        # Handle the global stack first.
-        global_changes = self._createQualityChanges(quality_container, new_name, machine_definition, None)
-        new_change_instances.append(global_changes)
-        self._container_registry.addContainer(global_changes)
-
-        # Handle the extruders if present.
-        extruders = machine_definition.getMetaDataEntry("machine_extruder_trains")
-        if extruders:
-            for extruder_id in extruders:
-                extruder = extruders[extruder_id]
-                new_changes = self._createQualityChanges(quality_container, new_name, machine_definition, extruder)
-                new_change_instances.append(new_changes)
-                self._container_registry.addContainer(new_changes)
-
-        return new_change_instances
-
-    #  Duplicate a quality changes container
-    def _duplicateQualityChangesForMachineType(self, quality_changes_name, base_name, machine_definition) -> List[InstanceContainer]:
-        new_change_instances = []
-        for container in QualityManager.getInstance().findQualityChangesByName(quality_changes_name,
-                                                              machine_definition):
-            base_id = container.getMetaDataEntry("extruder")
-            if not base_id:
-                base_id = container.getDefinition().getId()
-            new_unique_id = self._createUniqueId(base_id, base_name)
-            new_container = container.duplicate(new_unique_id, base_name)
-            new_change_instances.append(new_container)
-            self._container_registry.addContainer(new_container)
-
-        return new_change_instances
-
-    ##  Create a duplicate of a material, which has the same GUID and base_file metadata
-    #
-    #   \return \type{str} the id of the newly created container.
-    @pyqtSlot(str, result = str)
-    def duplicateMaterial(self, material_id: str) -> str:
-        original = self._container_registry.findContainersMetadata(id = material_id)
-        if not original:
-            Logger.log("d", "Unable to duplicate the material with id %s, because it doesn't exist.", material_id)
-            return ""
-        original = original[0]
-
-        base_container_id = original.get("base_file")
-        base_container = self._container_registry.findContainers(id = base_container_id)
-        if not base_container:
-            Logger.log("d", "Unable to duplicate the material with id {material_id}, because base_file {base_container_id} doesn't exist.".format(material_id = material_id, base_container_id = base_container_id))
-            return ""
-        base_container = base_container[0]
-
-        #We'll copy all containers with the same base.
-        #This way the correct variant and machine still gets assigned when loading the copy of the material.
-        containers_to_copy = self._container_registry.findInstanceContainers(base_file = base_container_id)
-
-        # Ensure all settings are saved.
-        Application.getInstance().saveSettings()
-
-        # Create a new ID & container to hold the data.
-        new_containers = []
-        new_base_id = self._container_registry.uniqueName(base_container.getId())
-        new_base_container = copy.deepcopy(base_container)
-        new_base_container.getMetaData()["id"] = new_base_id
-        new_base_container.getMetaData()["base_file"] = new_base_id
-        new_containers.append(new_base_container)
-
-        #Clone all of them.
-        clone_of_original = None #Keeping track of which one is the clone of the original material, since we need to return that.
-        for container_to_copy in containers_to_copy:
-            #Create unique IDs for every clone.
-            current_id = container_to_copy.getId()
-            new_id = new_base_id
-            if container_to_copy.getMetaDataEntry("definition") != "fdmprinter":
-                new_id += "_" + container_to_copy.getMetaDataEntry("definition")
-                if container_to_copy.getMetaDataEntry("variant"):
-                    variant = self._container_registry.findContainers(id = container_to_copy.getMetaDataEntry("variant"))[0]
-                    new_id += "_" + variant.getName().replace(" ", "_")
-            if current_id == material_id:
-                clone_of_original = new_id
-
-            new_container = copy.deepcopy(container_to_copy)
-            new_container.getMetaData()["id"] = new_id
-            new_container.getMetaData()["base_file"] = new_base_id
-            new_containers.append(new_container)
-
-        for container_to_add in new_containers:
-            container_to_add.setDirty(True)
-            ContainerRegistry.getInstance().addContainer(container_to_add)
-        return self._getMaterialContainerIdForActiveMachine(clone_of_original)
-
-    ##  Create a duplicate of a material or it's original entry
-    #
-    #   \return \type{str} the id of the newly created container.
-    @pyqtSlot(str, result = str)
-    def duplicateOriginalMaterial(self, material_id):
-
-        # check if the given material has a base file (i.e. was shipped by default)
-        base_file = self.getContainerMetaDataEntry(material_id, "base_file")
-
-        if base_file == "":
-            # there is no base file, so duplicate by ID
-            return self.duplicateMaterial(material_id)
-        else:
-            # there is a base file, so duplicate the original material
-            return self.duplicateMaterial(base_file)
-
-    ##  Create a new material by cloning Generic PLA for the current material diameter and setting the GUID to something unqiue
-    #
-    #   \return \type{str} the id of the newly created container.
-    @pyqtSlot(result = str)
-    def createMaterial(self) -> str:
-        # Ensure all settings are saved.
-        Application.getInstance().saveSettings()
-
-        global_stack = Application.getInstance().getGlobalContainerStack()
-        if not global_stack:
-            return ""
-
-        approximate_diameter = str(round(global_stack.getProperty("material_diameter", "value")))
-        containers = self._container_registry.findInstanceContainersMetadata(id = "generic_pla*", approximate_diameter = approximate_diameter)
-        if not containers:
-            Logger.log("d", "Unable to create a new material by cloning Generic PLA, because it cannot be found for the material diameter for this machine.")
-            return ""
-
-        base_file = containers[0].get("base_file")
-        containers = self._container_registry.findInstanceContainers(id = base_file)
-        if not containers:
-            Logger.log("d", "Unable to create a new material by cloning Generic PLA, because the base file for Generic PLA for this machine can not be found.")
-            return ""
-
-        # Create a new ID & container to hold the data.
-        new_id = self._container_registry.uniqueName("custom_material")
-        container_type = type(containers[0])  # Always XMLMaterialProfile, since we specifically clone the base_file
-        duplicated_container = container_type(new_id)
-
-        # Instead of duplicating we load the data from the basefile again.
-        # This ensures that the inheritance goes well and all "cut up" subclasses of the xmlMaterial profile
-        # are also correctly created.
-        with open(containers[0].getPath(), encoding="utf-8") as f:
-            duplicated_container.deserialize(f.read())
-
-        duplicated_container.setMetaDataEntry("GUID", str(uuid.uuid4()))
-        duplicated_container.setMetaDataEntry("brand", catalog.i18nc("@label", "Custom"))
-        # We're defaulting to PLA, as machines with material profiles don't like material types they don't know.
-        # TODO: This is a hack, the only reason this is in now is to bandaid the problem as we're close to a release!
-        duplicated_container.setMetaDataEntry("material", "PLA")
-        duplicated_container.setName(catalog.i18nc("@label", "Custom Material"))
-
-        self._container_registry.addContainer(duplicated_container)
-        return self._getMaterialContainerIdForActiveMachine(new_id)
-
-    ##  Find the id of a material container based on the new material
-    #   Utilty function that is shared between duplicateMaterial and createMaterial
-    #
-    #   \param base_file \type{str} the id of the created container.
-    def _getMaterialContainerIdForActiveMachine(self, base_file):
-        global_stack = Application.getInstance().getGlobalContainerStack()
-        if not global_stack:
-            return base_file
-
-        has_machine_materials = parseBool(global_stack.getMetaDataEntry("has_machine_materials", default = False))
-        has_variant_materials = parseBool(global_stack.getMetaDataEntry("has_variant_materials", default = False))
-        has_variants = parseBool(global_stack.getMetaDataEntry("has_variants", default = False))
-        if has_machine_materials or has_variant_materials:
-            if has_variants:
-                materials = self._container_registry.findInstanceContainersMetadata(type = "material", base_file = base_file, definition = global_stack.getBottom().getId(), variant = self._machine_manager.activeVariantId)
-            else:
-                materials = self._container_registry.findInstanceContainersMetadata(type = "material", base_file = base_file, definition = global_stack.getBottom().getId())
-
-            if materials:
-                return materials[0]["id"]
-
-            Logger.log("w", "Unable to find a suitable container based on %s for the current machine.", base_file)
-            return "" # do not activate a new material if a container can not be found
-
-        return base_file
 
     ##  Get a list of materials that have the same GUID as the reference material
     #
     #   \param material_id \type{str} the id of the material for which to get the linked materials.
     #   \return \type{list} a list of names of materials with the same GUID
-    @pyqtSlot(str, result = "QStringList")
+    @pyqtSlot("QVariant", result = "QStringList")
-    def getLinkedMaterials(self, material_id: str):
+    def getLinkedMaterials(self, material_node):
-        containers = self._container_registry.findInstanceContainersMetadata(id = material_id)
+        guid = material_node.metadata["GUID"]
-        if not containers:
-            Logger.log("d", "Unable to find materials linked to material with id %s, because it doesn't exist.", material_id)
-            return []
 
-        material_container = containers[0]
+        material_group_list = self._material_manager.getMaterialGroupListByGUID(guid)
-        material_base_file = material_container.get("base_file", "")
-        material_guid = material_container.get("GUID", "")
-        if not material_guid:
-            Logger.log("d", "Unable to find materials linked to material with id %s, because it doesn't have a GUID.", material_id)
-            return []
 
-        containers = self._container_registry.findInstanceContainersMetadata(type = "material", GUID = material_guid)
         linked_material_names = []
-        for container in containers:
+        if material_group_list:
-            if container["id"] in [material_id, material_base_file] or container.get("base_file") != container["id"]:
+            for material_group in material_group_list:
-                continue
+                linked_material_names.append(material_group.root_material_node.metadata["name"])
-
-            linked_material_names.append(container["name"])
         return linked_material_names
 
     ##  Unlink a material from all other materials by creating a new GUID
     #   \param material_id \type{str} the id of the material to create a new GUID for.
-    @pyqtSlot(str)
+    @pyqtSlot("QVariant")
-    def unlinkMaterial(self, material_id: str):
+    def unlinkMaterial(self, material_node):
-        containers = self._container_registry.findInstanceContainers(id=material_id)
+        # Get the material group
-        if not containers:
+        material_group = self._material_manager.getMaterialGroup(material_node.metadata["base_file"])
-            Logger.log("d", "Unable to make the material with id %s unique, because it doesn't exist.", material_id)
-            return ""
 
-        containers[0].setMetaDataEntry("GUID", str(uuid.uuid4()))
+        # Generate a new GUID
+        new_guid = str(uuid.uuid4())
 
+        # Update the GUID
+        # NOTE: We only need to set the root material container because XmlMaterialProfile.setMetaDataEntry() will
+        # take care of the derived containers too
+        container = material_group.root_material_node.getContainer()
+        container.setMetaDataEntry("GUID", new_guid)
 
     ##  Get the singleton instance for this class.
     @classmethod
@@ -1015,81 +484,6 @@ class ContainerManager(QObject):
             name_filter = "{0} ({1})".format(mime_type.comment, suffix_list)
             self._container_name_filters[name_filter] = entry
 
-    ##  Creates a unique ID for a container by prefixing the name with the stack ID.
-    #
-    #   This method creates a unique ID for a container by prefixing it with a specified stack ID.
-    #   This is done to ensure we have an easily identified ID for quality changes, which have the
-    #   same name across several stacks.
-    #
-    #   \param stack_id The ID of the stack to prepend.
-    #   \param container_name The name of the container that we are creating a unique ID for.
-    #
-    #   \return Container name prefixed with stack ID, in lower case with spaces replaced by underscores.
-    def _createUniqueId(self, stack_id, container_name):
-        result = stack_id + "_" + container_name
-        result = result.lower()
-        result.replace(" ", "_")
-        return result
-
-    ##  Create a quality changes container for a specified quality container.
-    #
-    #   \param quality_container The quality container to create a changes container for.
-    #   \param new_name The name of the new quality_changes container.
-    #   \param machine_definition The machine definition this quality changes container is specific to.
-    #   \param extruder_id
-    #
-    #   \return A new quality_changes container with the specified container as base.
-    def _createQualityChanges(self, quality_container, new_name, machine_definition, extruder_id):
-        base_id = machine_definition.getId() if extruder_id is None else extruder_id
-
-        # Create a new quality_changes container for the quality.
-        quality_changes = InstanceContainer(self._createUniqueId(base_id, new_name))
-        quality_changes.setName(new_name)
-        quality_changes.addMetaDataEntry("type", "quality_changes")
-        quality_changes.addMetaDataEntry("quality_type", quality_container.getMetaDataEntry("quality_type"))
-
-        # If we are creating a container for an extruder, ensure we add that to the container
-        if extruder_id is not None:
-            quality_changes.addMetaDataEntry("extruder", extruder_id)
-
-        # If the machine specifies qualities should be filtered, ensure we match the current criteria.
-        if not machine_definition.getMetaDataEntry("has_machine_quality"):
-            quality_changes.setDefinition("fdmprinter")
-        else:
-            quality_changes.setDefinition(QualityManager.getInstance().getParentMachineDefinition(machine_definition).getId())
-
-        from cura.CuraApplication import CuraApplication
-        quality_changes.addMetaDataEntry("setting_version", CuraApplication.SettingVersion)
-        return quality_changes
-
-
-    ##  Import profiles from a list of file_urls.
-    #   Each QUrl item must end with .curaprofile, or it will not be imported.
-    #
-    #   \param QVariant<QUrl>, essentially a list with QUrl objects.
-    #   \return Dict with keys status, text
-    @pyqtSlot("QVariantList", result="QVariantMap")
-    def importProfiles(self, file_urls):
-        status = "ok"
-        results = {"ok": [], "error": []}
-        for file_url in file_urls:
-            if not file_url.isValid():
-                continue
-            path = file_url.toLocalFile()
-            if not path:
-                continue
-            if not path.endswith(".curaprofile"):
-                continue
-
-            single_result = self._container_registry.importProfile(path)
-            if single_result["status"] == "error":
-                status = "error"
-            results[single_result["status"]].append(single_result["message"])
-
-        return {
-            "status": status,
-            "message": "\n".join(results["ok"] + results["error"])}
-
     ##  Import single profile, file_url does not have to end with curaprofile
     @pyqtSlot(QUrl, result="QVariantMap")
     def importProfile(self, file_url):
@@ -1100,11 +494,13 @@ class ContainerManager(QObject):
             return
         return self._container_registry.importProfile(path)
 
-    @pyqtSlot("QVariantList", QUrl, str)
+    @pyqtSlot(QObject, QUrl, str)
-    def exportProfile(self, instance_id: str, file_url: QUrl, file_type: str) -> None:
+    def exportQualityChangesGroup(self, quality_changes_group, file_url: QUrl, file_type: str):
         if not file_url.isValid():
             return
         path = file_url.toLocalFile()
         if not path:
             return
-        self._container_registry.exportProfile(instance_id, path, file_type)
+
+        container_list = [n.getContainer() for n in quality_changes_group.getAllNodes()]
+        self._container_registry.exportQualityProfile(container_list, path, file_type)

cura/Settings/ContainerSettingsModel.py

@@ -1,97 +0,0 @@
-# Copyright (c) 2016 Ultimaker B.V.
-# Cura is released under the terms of the LGPLv3 or higher.
-
-from UM.Application import Application
-from UM.Qt.ListModel import ListModel
-
-from PyQt5.QtCore import pyqtProperty, Qt, pyqtSignal, pyqtSlot, QUrl
-
-from UM.Settings.ContainerRegistry import ContainerRegistry
-from UM.Settings.InstanceContainer import InstanceContainer
-from UM.Settings.SettingFunction import SettingFunction
-
-class ContainerSettingsModel(ListModel):
-    LabelRole = Qt.UserRole + 1
-    CategoryRole = Qt.UserRole + 2
-    UnitRole = Qt.UserRole + 3
-    ValuesRole = Qt.UserRole + 4
-
-    def __init__(self, parent = None):
-        super().__init__(parent)
-        self.addRoleName(self.LabelRole, "label")
-        self.addRoleName(self.CategoryRole, "category")
-        self.addRoleName(self.UnitRole, "unit")
-        self.addRoleName(self.ValuesRole, "values")
-
-        self._container_ids = []
-        self._containers = []
-
-    def _onPropertyChanged(self, key, property_name):
-        if property_name == "value":
-            self._update()
-
-    def _update(self):
-        items = []
-
-        if len(self._container_ids) == 0:
-            return
-
-        keys = []
-        for container in self._containers:
-            keys = keys + list(container.getAllKeys())
-
-        keys = list(set(keys)) # remove duplicate keys
-
-        for key in keys:
-            definition = None
-            category = None
-            values = []
-            for container in self._containers:
-                instance = container.getInstance(key)
-                if instance:
-                    definition = instance.definition
-
-                    # Traverse up to find the category
-                    category = definition
-                    while category.type != "category":
-                        category = category.parent
-
-                    value = container.getProperty(key, "value")
-                    if type(value) == SettingFunction:
-                        values.append("=\u0192")
-                    else:
-                        values.append(container.getProperty(key, "value"))
-                else:
-                    values.append("")
-
-            items.append({
-                "key": key,
-                "values": values,
-                "label": definition.label,
-                "unit": definition.unit,
-                "category": category.label
-            })
-        items.sort(key = lambda k: (k["category"], k["key"]))
-        self.setItems(items)
-
-    ##  Set the ids of the containers which have the settings this model should list.
-    #   Also makes sure the model updates when the containers have property changes
-    def setContainers(self, container_ids):
-        for container in self._containers:
-            container.propertyChanged.disconnect(self._onPropertyChanged)
-
-        self._container_ids = container_ids
-        self._containers = []
-
-        for container_id in self._container_ids:
-            containers = ContainerRegistry.getInstance().findContainers(id = container_id)
-            if containers:
-                containers[0].propertyChanged.connect(self._onPropertyChanged)
-                self._containers.append(containers[0])
-
-        self._update()
-
-    containersChanged = pyqtSignal()
-    @pyqtProperty("QVariantList", fset = setContainers, notify = containersChanged)
-    def containers(self):
-        return self.container_ids

cura/Settings/CuraContainerRegistry.py

@@ -25,14 +25,15 @@ from UM.Resources import Resources
 
 from . import ExtruderStack
 from . import GlobalStack
-from .ContainerManager import ContainerManager
 from .ExtruderManager import ExtruderManager
 
 from cura.CuraApplication import CuraApplication
+from cura.Machines.QualityManager import getMachineDefinitionIDForQualitySearch
 
 from UM.i18n import i18nCatalog
 catalog = i18nCatalog("cura")
 
+
 class CuraContainerRegistry(ContainerRegistry):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -102,7 +103,7 @@ class CuraContainerRegistry(ContainerRegistry):
     #   \param instance_ids \type{list} the IDs of the profiles to export.
     #   \param file_name \type{str} the full path and filename to export to.
     #   \param file_type \type{str} the file type with the format "<description> (*.<extension>)"
-    def exportProfile(self, instance_ids, file_name, file_type):
+    def exportQualityProfile(self, container_list, file_name, file_type):
         # Parse the fileType to deduce what plugin can save the file format.
         # fileType has the format "<description> (*.<extension>)"
         split = file_type.rfind(" (*.")  # Find where the description ends and the extension starts.
@@ -121,31 +122,10 @@ class CuraContainerRegistry(ContainerRegistry):
                                               catalog.i18nc("@label Don't translate the XML tag <filename>!", "The file <filename>{0}</filename> already exists. Are you sure you want to overwrite it?").format(file_name))
                 if result == QMessageBox.No:
                     return
-        found_containers = []
-        extruder_positions = []
-        for instance_id in instance_ids:
-            containers = ContainerRegistry.getInstance().findInstanceContainers(id = instance_id)
-            if containers:
-                found_containers.append(containers[0])
-
-                # Determine the position of the extruder of this container
-                extruder_id = containers[0].getMetaDataEntry("extruder", "")
-                if extruder_id == "":
-                    # Global stack
-                    extruder_positions.append(-1)
-                else:
-                    extruder_containers = ContainerRegistry.getInstance().findDefinitionContainersMetadata(id = extruder_id)
-                    if extruder_containers:
-                        extruder_positions.append(int(extruder_containers[0].get("position", 0)))
-                    else:
-                        extruder_positions.append(0)
-        # Ensure the profiles are always exported in order (global, extruder 0, extruder 1, ...)
-        found_containers = [containers for (positions, containers) in sorted(zip(extruder_positions, found_containers))]
 
         profile_writer = self._findProfileWriter(extension, description)
-
         try:
-            success = profile_writer.write(file_name, found_containers)
+            success = profile_writer.write(file_name, container_list)
         except Exception as e:
             Logger.log("e", "Failed to export profile to %s: %s", file_name, str(e))
             m = Message(catalog.i18nc("@info:status Don't translate the XML tags <filename> or <message>!", "Failed to export profile to <filename>{0}</filename>: <message>{1}</message>", file_name, str(e)),
@@ -289,7 +269,7 @@ class CuraContainerRegistry(ContainerRegistry):
 
                     elif profile_index < len(machine_extruders) + 1:
                         # This is assumed to be an extruder profile
-                        extruder_id = Application.getInstance().getMachineManager().getQualityDefinitionId(machine_extruders[profile_index - 1].getBottom())
+                        extruder_id = machine_extruders[profile_index - 1].definition.getId()
                         if not profile.getMetaDataEntry("extruder"):
                             profile.addMetaDataEntry("extruder", extruder_id)
                         else:
@@ -348,39 +328,16 @@ class CuraContainerRegistry(ContainerRegistry):
             return catalog.i18nc("@info:status", "Profile is missing a quality type.")
 
         quality_type_criteria = {"quality_type": quality_type}
-        if self._machineHasOwnQualities():
+        global_stack = Application.getInstance().getGlobalContainerStack()
-            profile.setDefinition(self._activeQualityDefinition().getId())
+        definition_id = getMachineDefinitionIDForQualitySearch(global_stack)
-            if self._machineHasOwnMaterials():
+        profile.setDefinition(definition_id)
-                active_material_id = self._activeMaterialId()
-                if active_material_id and active_material_id != "empty":  # only update if there is an active material
-                    profile.addMetaDataEntry("material", active_material_id)
-                    quality_type_criteria["material"] = active_material_id
-
-            quality_type_criteria["definition"] = profile.getDefinition().getId()
-
-        else:
-            profile.setDefinition("fdmprinter")
-            quality_type_criteria["definition"] = "fdmprinter"
-
-        machine_definition = Application.getInstance().getGlobalContainerStack().getBottom()
-        del quality_type_criteria["definition"]
-
-        # materials = None
-
-        if "material" in quality_type_criteria:
-            # materials = ContainerRegistry.getInstance().findInstanceContainers(id = quality_type_criteria["material"])
-            del quality_type_criteria["material"]
-
-        # Do not filter quality containers here with materials because we are trying to import a profile, so it should
-        # NOT be restricted by the active materials on the current machine.
-        materials = None
 
         # Check to make sure the imported profile actually makes sense in context of the current configuration.
         # This prevents issues where importing a "draft" profile for a machine without "draft" qualities would report as
         # successfully imported but then fail to show up.
-        from cura.QualityManager import QualityManager
+        quality_manager = CuraApplication.getInstance()._quality_manager
-        qualities = QualityManager.getInstance()._getFilteredContainersForStack(machine_definition, materials, **quality_type_criteria)
+        quality_group_dict = quality_manager.getQualityGroupsForMachineDefinition(global_stack)
-        if not qualities:
+        if quality_type not in quality_group_dict:
             return catalog.i18nc("@info:status", "Could not find a quality type {0} for the current configuration.", quality_type)
 
         ContainerRegistry.getInstance().addContainer(profile)
@@ -400,18 +357,6 @@ class CuraContainerRegistry(ContainerRegistry):
                 result.append( (plugin_id, meta_data) )
         return result
 
-    ##  Get the definition to use to select quality profiles for the active machine
-    #   \return the active quality definition object or None if there is no quality definition
-    def _activeQualityDefinition(self):
-        global_container_stack = Application.getInstance().getGlobalContainerStack()
-        if global_container_stack:
-            definition_id = Application.getInstance().getMachineManager().getQualityDefinitionId(global_container_stack.getBottom())
-            definition = self.findDefinitionContainers(id = definition_id)[0]
-
-            if definition:
-                return definition
-        return None
-
     ##  Returns true if the current machine requires its own materials
     #   \return True if the current machine requires its own materials
     def _machineHasOwnMaterials(self):
@@ -507,8 +452,6 @@ class CuraContainerRegistry(ContainerRegistry):
         extruder_stack.setDefinition(extruder_definition)
         extruder_stack.addMetaDataEntry("position", extruder_definition.getMetaDataEntry("position"))
 
-        from cura.CuraApplication import CuraApplication
-
         # create a new definition_changes container for the extruder stack
         definition_changes_id = self.uniqueName(extruder_stack.getId() + "_settings") if create_new_ids else extruder_stack.getId() + "_settings"
         definition_changes_name = definition_changes_id
@@ -567,26 +510,28 @@ class CuraContainerRegistry(ContainerRegistry):
         self.addContainer(user_container)
         extruder_stack.setUserChanges(user_container)
 
-        variant_id = "default"
+        application = CuraApplication.getInstance()
+        empty_variant = application.empty_variant_container
+        empty_material = application.empty_material_container
+        empty_quality = application.empty_quality_container
+
         if machine.variant.getId() not in ("empty", "empty_variant"):
-            variant_id = machine.variant.getId()
+            variant = machine.variant
         else:
-            variant_id = "empty_variant"
+            variant = empty_variant
-        extruder_stack.setVariantById(variant_id)
+        extruder_stack.variant = variant
 
-        material_id = "default"
         if machine.material.getId() not in ("empty", "empty_material"):
-            material_id = machine.material.getId()
+            material = machine.material
         else:
-            material_id = "empty_material"
+            material = empty_material
-        extruder_stack.setMaterialById(material_id)
+        extruder_stack.material = material
 
-        quality_id = "default"
         if machine.quality.getId() not in ("empty", "empty_quality"):
-            quality_id = machine.quality.getId()
+            quality = machine.quality
         else:
-            quality_id = "empty_quality"
+            quality = empty_quality
-        extruder_stack.setQualityById(quality_id)
+        extruder_stack.quality = quality
 
         machine_quality_changes = machine.qualityChanges
         if new_global_quality_changes is not None:
@@ -598,7 +543,7 @@ class CuraContainerRegistry(ContainerRegistry):
                 extruder_quality_changes_container = extruder_quality_changes_container[0]
 
                 quality_changes_id = extruder_quality_changes_container.getId()
-                extruder_stack.setQualityChangesById(quality_changes_id)
+                extruder_stack.qualityChanges = self.findInstanceContainers(id = quality_changes_id)[0]
             else:
                 # Some extruder quality_changes containers can be created at runtime as files in the qualities
                 # folder. Those files won't be loaded in the registry immediately. So we also need to search
@@ -607,7 +552,7 @@ class CuraContainerRegistry(ContainerRegistry):
                 if extruder_quality_changes_container:
                     quality_changes_id = extruder_quality_changes_container.getId()
                     extruder_quality_changes_container.addMetaDataEntry("extruder", extruder_stack.definition.getId())
-                    extruder_stack.setQualityChangesById(quality_changes_id)
+                    extruder_stack.qualityChanges = self.findInstanceContainers(id = quality_changes_id)[0]
                 else:
                     # if we still cannot find a quality changes container for the extruder, create a new one
                     container_name = machine_quality_changes.getName()
@@ -642,7 +587,7 @@ class CuraContainerRegistry(ContainerRegistry):
 
                         machine_quality_changes.removeInstance(qc_setting_key, postpone_emit=True)
         else:
-            extruder_stack.setQualityChangesById("empty_quality_changes")
+            extruder_stack.qualityChanges = self.findInstanceContainers(id = "empty_quality_changes")[0]
 
         self.addContainer(extruder_stack)
 

cura/Settings/CuraContainerStack.py

@@ -83,20 +83,6 @@ class CuraContainerStack(ContainerStack):
     def setQualityChanges(self, new_quality_changes: InstanceContainer, postpone_emit = False) -> None:
         self.replaceContainer(_ContainerIndexes.QualityChanges, new_quality_changes, postpone_emit = postpone_emit)
 
-    ##  Set the quality changes container by an ID.
-    #
-    #   This will search for the specified container and set it. If no container was found, an error will be raised.
-    #
-    #   \param new_quality_changes_id The ID of the new quality changes container.
-    #
-    #   \throws Exceptions.InvalidContainerError Raised when no container could be found with the specified ID.
-    def setQualityChangesById(self, new_quality_changes_id: str) -> None:
-        quality_changes = ContainerRegistry.getInstance().findInstanceContainers(id = new_quality_changes_id)
-        if quality_changes:
-            self.setQualityChanges(quality_changes[0])
-        else:
-            raise Exceptions.InvalidContainerError("Could not find container with id {id}".format(id = new_quality_changes_id))
-
     ##  Get the quality changes container.
     #
     #   \return The quality changes container. Should always be a valid container, but can be equal to the empty InstanceContainer.
@@ -110,31 +96,6 @@ class CuraContainerStack(ContainerStack):
     def setQuality(self, new_quality: InstanceContainer, postpone_emit = False) -> None:
         self.replaceContainer(_ContainerIndexes.Quality, new_quality, postpone_emit = postpone_emit)
 
-    ##  Set the quality container by an ID.
-    #
-    #   This will search for the specified container and set it. If no container was found, an error will be raised.
-    #   There is a special value for ID, which is "default". The "default" value indicates the quality should be set
-    #   to whatever the machine definition specifies as "preferred" container, or a fallback value. See findDefaultQuality
-    #   for details.
-    #
-    #   \param new_quality_id The ID of the new quality container.
-    #
-    #   \throws Exceptions.InvalidContainerError Raised when no container could be found with the specified ID.
-    def setQualityById(self, new_quality_id: str) -> None:
-        quality = self._empty_quality
-        if new_quality_id == "default":
-            new_quality = self.findDefaultQuality()
-            if new_quality:
-                quality = new_quality
-        else:
-            qualities = ContainerRegistry.getInstance().findInstanceContainers(id = new_quality_id)
-            if qualities:
-                quality = qualities[0]
-            else:
-                raise Exceptions.InvalidContainerError("Could not find container with id {id}".format(id = new_quality_id))
-
-        self.setQuality(quality)
-
     ##  Get the quality container.
     #
     #   \return The quality container. Should always be a valid container, but can be equal to the empty InstanceContainer.
@@ -148,31 +109,6 @@ class CuraContainerStack(ContainerStack):
     def setMaterial(self, new_material: InstanceContainer, postpone_emit = False) -> None:
         self.replaceContainer(_ContainerIndexes.Material, new_material, postpone_emit = postpone_emit)
 
-    ##  Set the material container by an ID.
-    #
-    #   This will search for the specified container and set it. If no container was found, an error will be raised.
-    #   There is a special value for ID, which is "default". The "default" value indicates the quality should be set
-    #   to whatever the machine definition specifies as "preferred" container, or a fallback value. See findDefaultMaterial
-    #   for details.
-    #
-    #   \param new_material_id The ID of the new material container.
-    #
-    #   \throws Exceptions.InvalidContainerError Raised when no container could be found with the specified ID.
-    def setMaterialById(self, new_material_id: str) -> None:
-        material = self._empty_material
-        if new_material_id == "default":
-            new_material = self.findDefaultMaterial()
-            if new_material:
-                material = new_material
-        else:
-            materials = ContainerRegistry.getInstance().findInstanceContainers(id = new_material_id)
-            if materials:
-                material = materials[0]
-            else:
-                raise Exceptions.InvalidContainerError("Could not find container with id {id}".format(id = new_material_id))
-
-        self.setMaterial(material)
-
     ##  Get the material container.
     #
     #   \return The material container. Should always be a valid container, but can be equal to the empty InstanceContainer.
@@ -186,31 +122,6 @@ class CuraContainerStack(ContainerStack):
     def setVariant(self, new_variant: InstanceContainer) -> None:
         self.replaceContainer(_ContainerIndexes.Variant, new_variant)
 
-    ##  Set the variant container by an ID.
-    #
-    #   This will search for the specified container and set it. If no container was found, an error will be raised.
-    #   There is a special value for ID, which is "default". The "default" value indicates the quality should be set
-    #   to whatever the machine definition specifies as "preferred" container, or a fallback value. See findDefaultVariant
-    #   for details.
-    #
-    #   \param new_variant_id The ID of the new variant container.
-    #
-    #   \throws Exceptions.InvalidContainerError Raised when no container could be found with the specified ID.
-    def setVariantById(self, new_variant_id: str) -> None:
-        variant = self._empty_variant
-        if new_variant_id == "default":
-            new_variant = self.findDefaultVariantBuildplate() if self.getMetaDataEntry("type") == "machine" else self.findDefaultVariant()
-            if new_variant:
-                variant = new_variant
-        else:
-            variants = ContainerRegistry.getInstance().findInstanceContainers(id = new_variant_id)
-            if variants:
-                variant = variants[0]
-            else:
-                raise Exceptions.InvalidContainerError("Could not find container with id {id}".format(id = new_variant_id))
-
-        self.setVariant(variant)
-
     ##  Get the variant container.
     #
     #   \return The variant container. Should always be a valid container, but can be equal to the empty InstanceContainer.
@@ -224,18 +135,6 @@ class CuraContainerStack(ContainerStack):
     def setDefinitionChanges(self, new_definition_changes: InstanceContainer) -> None:
         self.replaceContainer(_ContainerIndexes.DefinitionChanges, new_definition_changes)
 
-    ##  Set the definition changes container by an ID.
-    #
-    #   \param new_definition_changes_id The ID of the new definition changes container.
-    #
-    #   \throws Exceptions.InvalidContainerError Raised when no container could be found with the specified ID.
-    def setDefinitionChangesById(self, new_definition_changes_id: str) -> None:
-        new_definition_changes = ContainerRegistry.getInstance().findInstanceContainers(id = new_definition_changes_id)
-        if new_definition_changes:
-            self.setDefinitionChanges(new_definition_changes[0])
-        else:
-            raise Exceptions.InvalidContainerError("Could not find container with id {id}".format(id = new_definition_changes_id))
-
     ##  Get the definition changes container.
     #
     #   \return The definition changes container. Should always be a valid container, but can be equal to the empty InstanceContainer.
@@ -249,18 +148,6 @@ class CuraContainerStack(ContainerStack):
     def setDefinition(self, new_definition: DefinitionContainerInterface) -> None:
         self.replaceContainer(_ContainerIndexes.Definition, new_definition)
 
-    ##  Set the definition container by an ID.
-    #
-    #   \param new_definition_id The ID of the new definition container.
-    #
-    #   \throws Exceptions.InvalidContainerError Raised when no container could be found with the specified ID.
-    def setDefinitionById(self, new_definition_id: str) -> None:
-        new_definition = ContainerRegistry.getInstance().findDefinitionContainers(id = new_definition_id)
-        if new_definition:
-            self.setDefinition(new_definition[0])
-        else:
-            raise Exceptions.InvalidContainerError("Could not find container with id {id}".format(id = new_definition_id))
-
     ##  Get the definition container.
     #
     #   \return The definition container. Should always be a valid container, but can be equal to the empty InstanceContainer.
@@ -348,6 +235,10 @@ class CuraContainerStack(ContainerStack):
         elif container != self._empty_instance_container and container.getMetaDataEntry("type") != expected_type:
             raise Exceptions.InvalidContainerError("Cannot replace container at index {index} with a container that is not of {type} type, but {actual_type} type.".format(index = index, type = expected_type, actual_type = container.getMetaDataEntry("type")))
 
+        current_container = self._containers[index]
+        if current_container.getId() == container.getId():
+            return
+
         super().replaceContainer(index, container, postpone_emit)
 
     ##  Overridden from ContainerStack
@@ -391,243 +282,6 @@ class CuraContainerStack(ContainerStack):
 
         self._containers = new_containers
 
-    ##  Find the variant that should be used as "default" variant.
-    #
-    #   This will search for variants that match the current definition and pick the preferred one,
-    #   if specified by the machine definition.
-    #
-    #   The following criteria are used to find the default variant:
-    #   - If the machine definition does not have a metadata entry "has_variants" set to True, return None
-    #   - The definition of the variant should be the same as the machine definition for this stack.
-    #   - The container should have a metadata entry "type" with value "variant".
-    #   - If the machine definition has a metadata entry "preferred_variant", filter the variant IDs based on that.
-    #
-    #   \return The container that should be used as default, or None if nothing was found or the machine does not use variants.
-    #
-    #   \note This method assumes the stack has a valid machine definition.
-    def findDefaultVariant(self) -> Optional[ContainerInterface]:
-        definition = self._getMachineDefinition()
-        # has_variants can be overridden in other containers and stacks.
-        # In the case of UM2, it is overridden in the GlobalStack
-        if not self.getMetaDataEntry("has_variants"):
-            # If the machine does not use variants, we should never set a variant.
-            return None
-
-        # First add any variant. Later, overwrite with preference if the preference is valid.
-        variant = None
-        definition_id = self._findInstanceContainerDefinitionId(definition)
-        variants = ContainerRegistry.getInstance().findInstanceContainers(definition = definition_id, type = "variant")
-        if variants:
-            variant = variants[0]
-
-        preferred_variant_id = definition.getMetaDataEntry("preferred_variant")
-        if preferred_variant_id:
-            preferred_variants = ContainerRegistry.getInstance().findInstanceContainers(id = preferred_variant_id, definition = definition_id, type = "variant")
-            if preferred_variants:
-                variant = preferred_variants[0]
-            else:
-                Logger.log("w", "The preferred variant \"{variant}\" of stack {stack} does not exist or is not a variant.", variant = preferred_variant_id, stack = self.id)
-                # And leave it at the default variant.
-
-        if variant:
-            return variant
-
-        Logger.log("w", "Could not find a valid default variant for stack {stack}", stack = self.id)
-        return None
-
-    ##  Find the global variant that should be used as "default". This is used for the buildplates.
-    #
-    #   This will search for variants that match the current definition and pick the preferred one,
-    #   if specified by the machine definition.
-    #
-    #   The following criteria are used to find the default global variant:
-    #   - If the machine definition does not have a metadata entry "has_variant_buildplates" set to True, return None
-    #   - The definition of the variant should be the same as the machine definition for this stack.
-    #   - The container should have a metadata entry "type" with value "variant" and "hardware_type" with value "buildplate".
-    #   - If the machine definition has a metadata entry "preferred_variant_buildplate", filter the variant IDs based on that.
-    #
-    #   \return The container that should be used as default, or None if nothing was found or the machine does not use variants.
-    #
-    #   \note This method assumes the stack has a valid machine definition.
-    def findDefaultVariantBuildplate(self) -> Optional[ContainerInterface]:
-        definition = self._getMachineDefinition()
-        # has_variant_buildplates can be overridden in other containers and stacks.
-        # In the case of UM2, it is overridden in the GlobalStack
-        if not self.getMetaDataEntry("has_variant_buildplates"):
-            # If the machine does not use variants, we should never set a variant.
-            return None
-
-        # First add any variant. Later, overwrite with preference if the preference is valid.
-        variant = None
-        definition_id = self._findInstanceContainerDefinitionId(definition)
-        variants = ContainerRegistry.getInstance().findInstanceContainers(definition = definition_id, type = "variant", hardware_type = "buildplate")
-        if variants:
-            variant = variants[0]
-
-        preferred_variant_buildplate_id = definition.getMetaDataEntry("preferred_variant_buildplate")
-        if preferred_variant_buildplate_id:
-            preferred_variant_buildplates = ContainerRegistry.getInstance().findInstanceContainers(id = preferred_variant_buildplate_id, definition = definition_id, type = "variant")
-            if preferred_variant_buildplates:
-                variant = preferred_variant_buildplates[0]
-            else:
-                Logger.log("w", "The preferred variant buildplate \"{variant}\" of stack {stack} does not exist or is not a variant.",
-                           variant = preferred_variant_buildplate_id, stack = self.id)
-                # And leave it at the default variant.
-
-        if variant:
-            return variant
-
-        Logger.log("w", "Could not find a valid default buildplate variant for stack {stack}", stack = self.id)
-        return None
-
-    ##  Find the material that should be used as "default" material.
-    #
-    #   This will search for materials that match the current definition and pick the preferred one,
-    #   if specified by the machine definition.
-    #
-    #   The following criteria are used to find the default material:
-    #   - If the machine definition does not have a metadata entry "has_materials" set to True, return None
-    #   - If the machine definition has a metadata entry "has_machine_materials", the definition of the material should
-    #     be the same as the machine definition for this stack. Otherwise, the definition should be "fdmprinter".
-    #   - The container should have a metadata entry "type" with value "material".
-    #   - The material should have an approximate diameter that matches the machine
-    #   - If the machine definition has a metadata entry "has_variants" and set to True, the "variant" metadata entry of
-    #     the material should be the same as the ID of the variant in the stack. Only applies if "has_machine_materials" is also True.
-    #   - If the stack currently has a material set, try to find a material that matches the current material by name.
-    #   - Otherwise, if the machine definition has a metadata entry "preferred_material", try to find a material that matches the specified ID.
-    #
-    #   \return The container that should be used as default, or None if nothing was found or the machine does not use materials.
-    def findDefaultMaterial(self) -> Optional[ContainerInterface]:
-        definition = self._getMachineDefinition()
-        if not definition.getMetaDataEntry("has_materials"):
-            # Machine does not use materials, never try to set it.
-            return None
-
-        search_criteria = {"type": "material"}
-        if definition.getMetaDataEntry("has_machine_materials"):
-            search_criteria["definition"] = self._findInstanceContainerDefinitionId(definition)
-
-            if definition.getMetaDataEntry("has_variants"):
-                search_criteria["variant"] = self.variant.id
-        else:
-            search_criteria["definition"] = "fdmprinter"
-
-        if self.material != self._empty_material:
-            search_criteria["name"] = self.material.name
-        else:
-            preferred_material = definition.getMetaDataEntry("preferred_material")
-            if preferred_material:
-                search_criteria["id"] = preferred_material
-
-        approximate_material_diameter = str(round(self.getProperty("material_diameter", "value")))
-        search_criteria["approximate_diameter"] = approximate_material_diameter
-
-        materials = ContainerRegistry.getInstance().findInstanceContainers(**search_criteria)
-        if not materials:
-            Logger.log("w", "The preferred material \"{material}\" could not be found for stack {stack}", material = preferred_material, stack = self.id)
-            # We failed to find any materials matching the specified criteria, drop some specific criteria and try to find
-            # a material that sort-of matches what we want.
-            search_criteria.pop("variant", None)
-            search_criteria.pop("id", None)
-            search_criteria.pop("name", None)
-            materials = ContainerRegistry.getInstance().findInstanceContainers(**search_criteria)
-
-        if not materials:
-            Logger.log("w", "Could not find a valid material for stack {stack}", stack = self.id)
-            return None
-
-        for material in materials:
-            # Prefer a read-only material
-            if ContainerRegistry.getInstance().isReadOnly(material.getId()):
-                return material
-
-        return materials[0]
-
-
-    ##  Find the quality that should be used as "default" quality.
-    #
-    #   This will search for qualities that match the current definition and pick the preferred one,
-    #   if specified by the machine definition.
-    #
-    #   \return The container that should be used as default, or None if nothing was found.
-    def findDefaultQuality(self) -> Optional[ContainerInterface]:
-        definition = self._getMachineDefinition()
-        registry = ContainerRegistry.getInstance()
-        material_container = self.material if self.material.getId() not in (self._empty_material.getId(), self._empty_instance_container.getId()) else None
-
-        search_criteria = {"type": "quality"}
-
-        if definition.getMetaDataEntry("has_machine_quality"):
-            search_criteria["definition"] = self._findInstanceContainerDefinitionId(definition)
-
-            if definition.getMetaDataEntry("has_materials") and material_container:
-                search_criteria["material"] = material_container.id
-        else:
-            search_criteria["definition"] = "fdmprinter"
-
-        if self.quality != self._empty_quality:
-            search_criteria["name"] = self.quality.name
-        else:
-            preferred_quality = definition.getMetaDataEntry("preferred_quality")
-            if preferred_quality:
-                search_criteria["id"] = preferred_quality
-
-        containers = registry.findInstanceContainers(**search_criteria)
-        if containers:
-            return containers[0]
-
-        if "material" in search_criteria:
-            # First check if we can solve our material not found problem by checking if we can find quality containers
-            # that are assigned to the parents of this material profile.
-            try:
-                inherited_files = material_container.getInheritedFiles()
-            except AttributeError:  # Material_container does not support inheritance.
-                inherited_files = []
-
-            if inherited_files:
-                for inherited_file in inherited_files:
-                    # Extract the ID from the path we used to load the file.
-                    search_criteria["material"] = os.path.basename(inherited_file).split(".")[0]
-                    containers = registry.findInstanceContainers(**search_criteria)
-                    if containers:
-                        return containers[0]
-
-            # We still weren't able to find a quality for this specific material.
-            # Try to find qualities for a generic version of the material.
-            material_search_criteria = {"type": "material", "material": material_container.getMetaDataEntry("material"), "color_name": "Generic"}
-            if definition.getMetaDataEntry("has_machine_quality"):
-                if self.material != self._empty_instance_container:
-                    material_search_criteria["definition"] = material_container.getMetaDataEntry("definition")
-
-                    if definition.getMetaDataEntry("has_variants"):
-                        material_search_criteria["variant"] = material_container.getMetaDataEntry("variant")
-                else:
-                    material_search_criteria["definition"] = self._findInstanceContainerDefinitionId(definition)
-
-                    if definition.getMetaDataEntry("has_variants") and self.variant != self._empty_instance_container:
-                        material_search_criteria["variant"] = self.variant.id
-            else:
-                material_search_criteria["definition"] = "fdmprinter"
-            material_containers = registry.findInstanceContainersMetadata(**material_search_criteria)
-            # Try all materials to see if there is a quality profile available.
-            for material_container in material_containers:
-                search_criteria["material"] = material_container["id"]
-
-                containers = registry.findInstanceContainers(**search_criteria)
-                if containers:
-                    return containers[0]
-
-        if "name" in search_criteria or "id" in search_criteria:
-            # If a quality by this name can not be found, try a wider set of search criteria
-            search_criteria.pop("name", None)
-            search_criteria.pop("id", None)
-
-            containers = registry.findInstanceContainers(**search_criteria)
-            if containers:
-                return containers[0]
-
-        return None
-
     ## protected:
 
     # Helper to make sure we emit a PyQt signal on container changes.

cura/Settings/CuraStackBuilder.py

@@ -1,15 +1,18 @@
-# Copyright (c) 2017 Ultimaker B.V.
+# Copyright (c) 2018 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
 
-from UM.Logger import Logger
+from typing import Optional
 
+from UM.Logger import Logger
 from UM.Settings.Interfaces import DefinitionContainerInterface
 from UM.Settings.InstanceContainer import InstanceContainer
 from UM.Settings.ContainerRegistry import ContainerRegistry
+from UM.Settings.SettingFunction import SettingFunction
+from UM.Util import parseBool
 
+from cura.Machines.VariantManager import VariantType
 from .GlobalStack import GlobalStack
 from .ExtruderStack import ExtruderStack
-from typing import Optional
 
 
 ##  Contains helper functions to create new machines.
@@ -22,7 +25,13 @@ class CuraStackBuilder:
     #   \return The new global stack or None if an error occurred.
     @classmethod
     def createMachine(cls, name: str, definition_id: str) -> Optional[GlobalStack]:
+        from cura.CuraApplication import CuraApplication
+        application = CuraApplication.getInstance()
+        variant_manager = application.getVariantManager()
+        material_manager = application.getMaterialManager()
+        quality_manager = application.getQualityManager()
         registry = ContainerRegistry.getInstance()
+
         definitions = registry.findDefinitionContainers(id = definition_id)
         if not definitions:
             Logger.log("w", "Definition {definition} was not found!", definition = definition_id)
@@ -30,7 +39,21 @@ class CuraStackBuilder:
 
         machine_definition = definitions[0]
 
-        generated_name = registry.createUniqueName("machine", "", name, machine_definition.name)
+        # get variant container for the global stack
+        global_variant_container = application.empty_variant_container
+        global_variant_node = variant_manager.getDefaultVariantNode(machine_definition, VariantType.BUILD_PLATE)
+        if global_variant_node:
+            global_variant_container = global_variant_node.getContainer()
+
+        # get variant container for extruders
+        extruder_variant_container = application.empty_variant_container
+        extruder_variant_node = variant_manager.getDefaultVariantNode(machine_definition, VariantType.NOZZLE)
+        extruder_variant_name = None
+        if extruder_variant_node:
+            extruder_variant_container = extruder_variant_node.getContainer()
+            extruder_variant_name = extruder_variant_container.getName()
+
+        generated_name = registry.createUniqueName("machine", "", name, machine_definition.getName())
         # Make sure the new name does not collide with any definition or (quality) profile
         # createUniqueName() only looks at other stacks, but not at definitions or quality profiles
         # Note that we don't go for uniqueName() immediately because that function matches with ignore_case set to true
@@ -40,49 +63,55 @@ class CuraStackBuilder:
         new_global_stack = cls.createGlobalStack(
             new_stack_id = generated_name,
             definition = machine_definition,
-            quality = "default",
+            variant_container = global_variant_container,
-            material = "default",
+            material_container = application.empty_material_container,
-            variant = "default",
+            quality_container = application.empty_quality_container,
         )
-
         new_global_stack.setName(generated_name)
 
-        extruder_definition = registry.findDefinitionContainers(machine = machine_definition.getId())
+        # get material container for extruders
+        material_container = application.empty_material_container
+        material_node = material_manager.getDefaultMaterial(new_global_stack, extruder_variant_name)
+        if material_node:
+            material_container = material_node.getContainer()
 
-        if not extruder_definition:
+        # Create ExtruderStacks
-            # create extruder stack for single extrusion machines that have no separate extruder definition files
+        extruder_dict = machine_definition.getMetaDataEntry("machine_extruder_trains")
-            extruder_definition = registry.findDefinitionContainers(id = "fdmextruder")[0]
+
-            new_extruder_id = registry.uniqueName(machine_definition.getName() + " " + extruder_definition.id)
+        for position, extruder_definition_id in extruder_dict.items():
+            # Sanity check: make sure that the positions in the extruder definitions are same as in the machine
+            # definition
+            extruder_definition = registry.findDefinitionContainers(id = extruder_definition_id)[0]
+            position_in_extruder_def = extruder_definition.getMetaDataEntry("position")
+            if position_in_extruder_def != position:
+                raise RuntimeError("Extruder position [%s] defined in extruder definition [%s] is not the same as in machine definition [%s] position [%s]" %
+                                   (position_in_extruder_def, extruder_definition_id, definition_id, position))
+
+            new_extruder_id = registry.uniqueName(extruder_definition_id)
             new_extruder = cls.createExtruderStack(
                 new_extruder_id,
-                definition = extruder_definition,
+                extruder_definition = extruder_definition,
-                machine_definition_id = machine_definition.getId(),
+                machine_definition_id = definition_id,
-                quality = "default",
+                position = position,
-                material = "default",
+                variant_container = extruder_variant_container,
-                variant = "default",
+                material_container = material_container,
-                next_stack = new_global_stack
+                quality_container = application.empty_quality_container,
+                global_stack = new_global_stack,
             )
+            new_extruder.setNextStack(new_global_stack)
             new_global_stack.addExtruder(new_extruder)
             registry.addContainer(new_extruder)
+
+        preferred_quality_type = machine_definition.getMetaDataEntry("preferred_quality_type")
+        quality_group_dict = quality_manager.getQualityGroups(new_global_stack)
+        quality_group = quality_group_dict.get(preferred_quality_type)
+
+        new_global_stack.quality = quality_group.node_for_global.getContainer()
+        for position, extruder_stack in new_global_stack.extruders.items():
+            if position in quality_group.nodes_for_extruders:
+                extruder_stack.quality = quality_group.nodes_for_extruders[position].getContainer()
             else:
-            # create extruder stack for each found extruder definition
+                extruder_stack.quality = application.empty_quality_container
-            for extruder_definition in registry.findDefinitionContainers(machine = machine_definition.id):
-                position = extruder_definition.getMetaDataEntry("position", None)
-                if not position:
-                    Logger.log("w", "Extruder definition %s specifies no position metadata entry.", extruder_definition.id)
-
-                new_extruder_id = registry.uniqueName(extruder_definition.id)
-                new_extruder = cls.createExtruderStack(
-                    new_extruder_id,
-                    definition = extruder_definition,
-                    machine_definition_id = machine_definition.getId(),
-                    quality = "default",
-                    material = "default",
-                    variant = "default",
-                    next_stack = new_global_stack
-                )
-                new_global_stack.addExtruder(new_extruder)
-                registry.addContainer(new_extruder)
 
         # Register the global stack after the extruder stacks are created. This prevents the registry from adding another
         # extruder stack because the global stack didn't have one yet (which is enforced since Cura 3.1).
@@ -100,43 +129,27 @@ class CuraStackBuilder:
     #
     #   \return A new Global stack instance with the specified parameters.
     @classmethod
-    def createExtruderStack(cls, new_stack_id: str, definition: DefinitionContainerInterface, machine_definition_id: str, **kwargs) -> ExtruderStack:
+    def createExtruderStack(cls, new_stack_id: str, extruder_definition: DefinitionContainerInterface, machine_definition_id: str,
-        stack = ExtruderStack(new_stack_id)
+                            position: int,
-        stack.setName(definition.getName())
+                            variant_container, material_container, quality_container, global_stack) -> ExtruderStack:
-        stack.setDefinition(definition)
-        stack.addMetaDataEntry("position", definition.getMetaDataEntry("position"))
-
-        if "next_stack" in kwargs:
-            # Add stacks before containers are added, since they may trigger a setting update.
-            stack.setNextStack(kwargs["next_stack"])
-
-        user_container = InstanceContainer(new_stack_id + "_user")
-        user_container.addMetaDataEntry("type", "user")
-        user_container.addMetaDataEntry("extruder", new_stack_id)
         from cura.CuraApplication import CuraApplication
-        user_container.addMetaDataEntry("setting_version", CuraApplication.SettingVersion)
+        application = CuraApplication.getInstance()
-        user_container.setDefinition(machine_definition_id)
 
-        stack.setUserChanges(user_container)
+        stack = ExtruderStack(new_stack_id, parent = global_stack)
+        stack.setName(extruder_definition.getName())
+        stack.setDefinition(extruder_definition)
 
-        # Important! The order here matters, because that allows the stack to
+        stack.addMetaDataEntry("position", position)
-        # assume the material and variant have already been set.
-        if "definition_changes" in kwargs:
-            stack.setDefinitionChangesById(kwargs["definition_changes"])
-        else:
-            stack.setDefinitionChanges(cls.createDefinitionChangesContainer(stack, new_stack_id + "_settings"))
 
-        if "variant" in kwargs:
+        user_container = cls.createUserChangesContainer(new_stack_id + "_user", machine_definition_id, new_stack_id,
-            stack.setVariantById(kwargs["variant"])
+                                                        is_global_stack = False)
 
-        if "material" in kwargs:
+        stack.definitionChanges = cls.createDefinitionChangesContainer(stack, new_stack_id + "_settings")
-            stack.setMaterialById(kwargs["material"])
+        stack.variant = variant_container
-
+        stack.material = material_container
-        if "quality" in kwargs:
+        stack.quality = quality_container
-            stack.setQualityById(kwargs["quality"])
+        stack.qualityChanges = application.empty_quality_changes_container
-
+        stack.userChanges = user_container
-        if "quality_changes" in kwargs:
-            stack.setQualityChangesById(kwargs["quality_changes"])
 
         # Only add the created containers to the registry after we have set all the other
         # properties. This makes the create operation more transactional, since any problems
@@ -153,44 +166,48 @@ class CuraStackBuilder:
     #
     #   \return A new Global stack instance with the specified parameters.
     @classmethod
-    def createGlobalStack(cls, new_stack_id: str, definition: DefinitionContainerInterface, **kwargs) -> GlobalStack:
+    def createGlobalStack(cls, new_stack_id: str, definition: DefinitionContainerInterface,
+                          variant_container, material_container, quality_container) -> GlobalStack:
+        from cura.CuraApplication import CuraApplication
+        application = CuraApplication.getInstance()
+
         stack = GlobalStack(new_stack_id)
         stack.setDefinition(definition)
 
-        user_container = InstanceContainer(new_stack_id + "_user")
+        # Create user container
-        user_container.addMetaDataEntry("type", "user")
+        user_container = cls.createUserChangesContainer(new_stack_id + "_user", definition.getId(), new_stack_id,
-        user_container.addMetaDataEntry("machine", new_stack_id)
+                                                        is_global_stack = True)
-        from cura.CuraApplication import CuraApplication
-        user_container.addMetaDataEntry("setting_version", CuraApplication.SettingVersion)
-        user_container.setDefinition(definition.getId())
 
-        stack.setUserChanges(user_container)
+        stack.definitionChanges = cls.createDefinitionChangesContainer(stack, new_stack_id + "_settings")
-
+        stack.variant = variant_container
-        # Important! The order here matters, because that allows the stack to
+        stack.material = material_container
-        # assume the material and variant have already been set.
+        stack.quality = quality_container
-        if "definition_changes" in kwargs:
+        stack.qualityChanges = application.empty_quality_changes_container
-            stack.setDefinitionChangesById(kwargs["definition_changes"])
+        stack.userChanges = user_container
-        else:
-            stack.setDefinitionChanges(cls.createDefinitionChangesContainer(stack, new_stack_id + "_settings"))
-
-        if "variant" in kwargs:
-            stack.setVariantById(kwargs["variant"])
-
-        if "material" in kwargs:
-            stack.setMaterialById(kwargs["material"])
-
-        if "quality" in kwargs:
-            stack.setQualityById(kwargs["quality"])
-
-        if "quality_changes" in kwargs:
-            stack.setQualityChangesById(kwargs["quality_changes"])
 
         ContainerRegistry.getInstance().addContainer(user_container)
 
         return stack
 
     @classmethod
-    def createDefinitionChangesContainer(cls, container_stack, container_name, container_index = None):
+    def createUserChangesContainer(cls, container_name: str, definition_id: str, stack_id: str,
+                                   is_global_stack: bool) -> "InstanceContainer":
+        from cura.CuraApplication import CuraApplication
+
+        unique_container_name = ContainerRegistry.getInstance().uniqueName(container_name)
+
+        container = InstanceContainer(unique_container_name)
+        container.setDefinition(definition_id)
+        container.addMetaDataEntry("type", "user")
+        container.addMetaDataEntry("setting_version", CuraApplication.SettingVersion)
+
+        metadata_key_to_add = "machine" if is_global_stack else "extruder"
+        container.addMetaDataEntry(metadata_key_to_add, stack_id)
+
+        return container
+
+    @classmethod
+    def createDefinitionChangesContainer(cls, container_stack, container_name):
         from cura.CuraApplication import CuraApplication
 
         unique_container_name = ContainerRegistry.getInstance().uniqueName(container_name)

cura/Settings/ExtruderManager.py

@@ -12,6 +12,7 @@ from UM.Scene.Selection import Selection
 from UM.Scene.Iterator.BreadthFirstIterator import BreadthFirstIterator
 from UM.Settings.ContainerRegistry import ContainerRegistry  # Finding containers by ID.
 from UM.Settings.SettingFunction import SettingFunction
+from UM.Settings.SettingInstance import SettingInstance
 from UM.Settings.ContainerStack import ContainerStack
 from UM.Settings.PropertyEvaluationContext import PropertyEvaluationContext
 from typing import Optional, List, TYPE_CHECKING, Union
@@ -30,28 +31,22 @@ class ExtruderManager(QObject):
     def __init__(self, parent = None):
         super().__init__(parent)
 
+        self._application = Application.getInstance()
+
         self._extruder_trains = {}  # Per machine, a dictionary of extruder container stack IDs. Only for separately defined extruders.
         self._active_extruder_index = -1  # Indicates the index of the active extruder stack. -1 means no active extruder stack
         self._selected_object_extruders = []
-        self._global_container_stack_definition_id = None
         self._addCurrentMachineExtruders()
 
-        Application.getInstance().globalContainerStackChanged.connect(self.__globalContainerStackChanged)
+        #Application.getInstance().globalContainerStackChanged.connect(self._globalContainerStackChanged)
         Selection.selectionChanged.connect(self.resetSelectedObjectExtruders)
 
     ##  Signal to notify other components when the list of extruders for a machine definition changes.
     extrudersChanged = pyqtSignal(QVariant)
 
-    ## Signal to notify other components when the global container stack is switched to a definition
-    #  that has different extruders than the previous global container stack
-    globalContainerStackDefinitionChanged = pyqtSignal()
-
     ##  Notify when the user switches the currently active extruder.
     activeExtruderChanged = pyqtSignal()
 
-    ## The signal notifies subscribers if extruders are added
-    extrudersAdded = pyqtSignal()
-
     ##  Gets the unique identifier of the currently active extruder stack.
     #
     #   The currently active extruder stack is the stack that is currently being
@@ -184,6 +179,7 @@ class ExtruderManager(QObject):
         self._selected_object_extruders = []
         self.selectedObjectExtrudersChanged.emit()
 
+    @pyqtSlot(result = QObject)
     def getActiveExtruderStack(self) -> Optional["ExtruderStack"]:
         global_container_stack = Application.getInstance().getGlobalContainerStack()
 
@@ -371,12 +367,7 @@ class ExtruderManager(QObject):
 
         return result[:machine_extruder_count]
 
-    def __globalContainerStackChanged(self) -> None:
+    def _globalContainerStackChanged(self) -> None:
-        global_container_stack = Application.getInstance().getGlobalContainerStack()
-        if global_container_stack and global_container_stack.getBottom() and global_container_stack.getBottom().getId() != self._global_container_stack_definition_id:
-            self._global_container_stack_definition_id = global_container_stack.getBottom().getId()
-            self.globalContainerStackDefinitionChanged.emit()
-
         # If the global container changed, the machine changed and might have extruders that were not registered yet
         self._addCurrentMachineExtruders()
 
@@ -384,7 +375,7 @@ class ExtruderManager(QObject):
 
     ##  Adds the extruders of the currently active machine.
     def _addCurrentMachineExtruders(self) -> None:
-        global_stack = Application.getInstance().getGlobalContainerStack()
+        global_stack = self._application.getGlobalContainerStack()
         extruders_changed = False
 
         if global_stack:
@@ -404,19 +395,81 @@ class ExtruderManager(QObject):
                 self._extruder_trains[global_stack_id][extruder_train.getMetaDataEntry("position")] = extruder_train
 
                 # regardless of what the next stack is, we have to set it again, because of signal routing. ???
+                extruder_train.setParent(global_stack)
                 extruder_train.setNextStack(global_stack)
                 extruders_changed = True
 
-            # FIX: We have to remove those settings here because we know that those values have been copied to all
+            self._fixMaterialDiameterAndNozzleSize(global_stack, extruder_trains)
+            if extruders_changed:
+                self.extrudersChanged.emit(global_stack_id)
+                self.setActiveExtruderIndex(0)
+
+    #
+    # This function tries to fix the problem with per-extruder-settable nozzle size and material diameter problems
+    # in early versions (3.0 - 3.2.1).
+    #
+    # In earlier versions, "nozzle size" and "material diameter" are only applicable to the complete machine, so all
+    # extruders share the same values. In this case, "nozzle size" and "material diameter" are saved in the
+    # GlobalStack's DefinitionChanges container.
+    #
+    # Later, we could have different "nozzle size" for each extruder, but "material diameter" could only be set for
+    # the entire machine. In this case, "nozzle size" should be saved in each ExtruderStack's DefinitionChanges, but
+    # "material diameter" still remains in the GlobalStack's DefinitionChanges.
+    #
+    # Lateer, both "nozzle size" and "material diameter" are settable per-extruder, and both settings should be saved
+    # in the ExtruderStack's DefinitionChanges.
+    #
+    # There were some bugs in upgrade so the data weren't saved correct as described above. This function tries fix
+    # this.
+    #
+    # One more thing is about material diameter and single-extrusion machines. Most single-extrusion machines don't
+    # specifically define their extruder definition, so they reuse "fdmextruder", but for those machines, they may
+    # define "material diameter = 1.75" in their machine definition, but in "fdmextruder", it's still "2.85". This
+    # causes a problem with incorrect default values.
+    #
+    # This is also fixed here in this way: If no "material diameter" is specified, it will look for the default value
+    # in both the Extruder's definition and the Global's definition. If 2 values don't match, we will use the value
+    # from the Global definition by setting it in the Extruder's DefinitionChanges container.
+    #
+    def _fixMaterialDiameterAndNozzleSize(self, global_stack, extruder_stack_list):
+        keys_to_copy = ["material_diameter", "machine_nozzle_size"]  # these will be copied over to all extruders
+
+        extruder_positions_to_update = set()
+        for extruder_stack in extruder_stack_list:
+            for key in keys_to_copy:
+                # Only copy the value when this extruder doesn't have the value.
+                if extruder_stack.definitionChanges.hasProperty(key, "value"):
+                    continue
+
+                setting_value_in_global_def_changes = global_stack.definitionChanges.getProperty(key, "value")
+                setting_value_in_global_def = global_stack.definition.getProperty(key, "value")
+                setting_value = setting_value_in_global_def
+                if setting_value_in_global_def_changes is not None:
+                    setting_value = setting_value_in_global_def_changes
+                if setting_value == extruder_stack.definition.getProperty(key, "value"):
+                    continue
+
+                setting_definition = global_stack.getSettingDefinition(key)
+                new_instance = SettingInstance(setting_definition, extruder_stack.definitionChanges)
+                new_instance.setProperty("value", setting_value)
+                new_instance.resetState()  # Ensure that the state is not seen as a user state.
+                extruder_stack.definitionChanges.addInstance(new_instance)
+                extruder_stack.definitionChanges.setDirty(True)
+
+                # Make sure the material diameter is up to date for the extruder stack.
+                if key == "material_diameter":
+                    position = int(extruder_stack.getMetaDataEntry("position"))
+                    extruder_positions_to_update.add(position)
+
+        # We have to remove those settings here because we know that those values have been copied to all
         # the extruders at this point.
-            for key in ("material_diameter", "machine_nozzle_size"):
+        for key in keys_to_copy:
             if global_stack.definitionChanges.hasProperty(key, "value"):
                 global_stack.definitionChanges.removeInstance(key, postpone_emit = True)
 
-            if extruders_changed:
+        # Update material diameter for extruders
-                self.extrudersChanged.emit(global_stack_id)
+        for position in extruder_positions_to_update:
-                self.extrudersAdded.emit()
+            self.updateMaterialForDiameter(position, global_stack = global_stack)
-                self.setActiveExtruderIndex(0)
 
     ##  Get all extruder values for a certain setting.
     #
@@ -503,7 +556,8 @@ class ExtruderManager(QObject):
         return ExtruderManager.getExtruderValues(key)
 
     ##  Updates the material container to a material that matches the material diameter set for the printer
-    def updateMaterialForDiameter(self, extruder_position: int):
+    def updateMaterialForDiameter(self, extruder_position: int, global_stack = None):
+        if not global_stack:
             global_stack = Application.getInstance().getGlobalContainerStack()
             if not global_stack:
                 return

cura/Settings/ExtruderStack.py

@@ -3,16 +3,16 @@
 
 from typing import Any, TYPE_CHECKING, Optional
 
-from UM.Application import Application
+from PyQt5.QtCore import pyqtProperty
+
 from UM.Decorators import override
 from UM.MimeTypeDatabase import MimeType, MimeTypeDatabase
 from UM.Settings.ContainerStack import ContainerStack
 from UM.Settings.ContainerRegistry import ContainerRegistry
 from UM.Settings.Interfaces import ContainerInterface, PropertyEvaluationContext
-from UM.Settings.SettingInstance import SettingInstance
 
 from . import Exceptions
-from .CuraContainerStack import CuraContainerStack
+from .CuraContainerStack import CuraContainerStack, _ContainerIndexes
 from .ExtruderManager import ExtruderManager
 
 if TYPE_CHECKING:
@@ -34,7 +34,7 @@ class ExtruderStack(CuraContainerStack):
     #
     #   This will set the next stack and ensure that we register this stack as an extruder.
     @override(ContainerStack)
-    def setNextStack(self, stack: ContainerStack) -> None:
+    def setNextStack(self, stack: CuraContainerStack) -> None:
         super().setNextStack(stack)
         stack.addExtruder(self)
         self.addMetaDataEntry("machine", stack.id)
@@ -42,75 +42,6 @@ class ExtruderStack(CuraContainerStack):
         # For backward compatibility: Register the extruder with the Extruder Manager
         ExtruderManager.getInstance().registerExtruder(self, stack.id)
 
-        # Now each machine will have at least one extruder stack. If this is the first extruder, the extruder-specific
-        # settings such as nozzle size and material diameter should be moved from the machine's definition_changes to
-        # the this extruder's definition_changes.
-        #
-        # We do this here because it is tooooo expansive to do it in the version upgrade: During the version upgrade,
-        # when we are upgrading a definition_changes container file, there is NO guarantee that other files such as
-        # machine an extruder stack files are upgraded before this, so we cannot read those files assuming they are in
-        # the latest format.
-        #
-        # MORE:
-        # For single-extrusion machines, nozzle size is saved in the global stack, so the nozzle size value should be
-        # carried to the first extruder.
-        # For material diameter, it was supposed to be applied to all extruders, so its value should be copied to all
-        # extruders.
-
-        keys_to_copy = ["material_diameter", "machine_nozzle_size"]  # these will be copied over to all extruders
-
-        for key in keys_to_copy:
-            # Only copy the value when this extruder doesn't have the value.
-            if self.definitionChanges.hasProperty(key, "value"):
-                continue
-
-            # WARNING: this might be very dangerous and should be refactored ASAP!
-            #
-            # We cannot add a setting definition of "material_diameter" into the extruder's definition at runtime
-            # because all other machines which uses "fdmextruder" as the extruder definition will be affected.
-            #
-            # The problem is that single extrusion machines have their default material diameter defined in the global
-            # definitions. Now we automatically create an extruder stack for those machines using "fdmextruder"
-            # definition, which doesn't have the specific "material_diameter" and "machine_nozzle_size" defined for
-            # each machine. This results in wrong values which can be found in the MachineSettings dialog.
-            #
-            # To solve this, we put "material_diameter" back into the "fdmextruder" definition because modifying it in
-            # the extruder definition will affect all machines which uses the "fdmextruder" definition. Moreover, now
-            # we also check the value defined in the machine definition. If present, the value defined in the global
-            # stack's definition changes container will be copied. Otherwise, we will check if the default values in the
-            # machine definition and the extruder definition are the same, and if not, the default value in the machine
-            # definition will be copied to the extruder stack's definition changes.
-            #
-            setting_value_in_global_def_changes = stack.definitionChanges.getProperty(key, "value")
-            setting_value_in_global_def = stack.definition.getProperty(key, "value")
-            setting_value = setting_value_in_global_def
-            if setting_value_in_global_def_changes is not None:
-                setting_value = setting_value_in_global_def_changes
-            if setting_value == self.definition.getProperty(key, "value"):
-                continue
-
-            setting_definition = stack.getSettingDefinition(key)
-            new_instance = SettingInstance(setting_definition, self.definitionChanges)
-            new_instance.setProperty("value", setting_value)
-            new_instance.resetState()  # Ensure that the state is not seen as a user state.
-            self.definitionChanges.addInstance(new_instance)
-            self.definitionChanges.setDirty(True)
-
-            # Make sure the material diameter is up to date for the extruder stack.
-            if key == "material_diameter":
-                from cura.CuraApplication import CuraApplication
-                machine_manager = CuraApplication.getInstance().getMachineManager()
-                position = self.getMetaDataEntry("position", "0")
-                func = lambda p = position: CuraApplication.getInstance().getExtruderManager().updateMaterialForDiameter(p)
-                machine_manager.machine_extruder_material_update_dict[stack.getId()].append(func)
-
-            # NOTE: We cannot remove the setting from the global stack's definition changes container because for
-            # material diameter, it needs to be applied to all extruders, but here we don't know how many extruders
-            # a machine actually has and how many extruders has already been loaded for that machine, so we have to
-            # keep this setting for any remaining extruders that haven't been loaded yet.
-            #
-            # Those settings will be removed in ExtruderManager which knows all those info.
-
     @override(ContainerStack)
     def getNextStack(self) -> Optional["GlobalStack"]:
         return super().getNextStack()
@@ -119,6 +50,29 @@ class ExtruderStack(CuraContainerStack):
     def getLoadingPriority(cls) -> int:
         return 3
 
+    ##  Return the filament diameter that the machine requires.
+    #
+    #   If the machine has no requirement for the diameter, -1 is returned.
+    #   \return The filament diameter for the printer
+    @property
+    def materialDiameter(self) -> float:
+        context = PropertyEvaluationContext(self)
+        context.context["evaluate_from_container_index"] = _ContainerIndexes.Variant
+
+        return self.getProperty("material_diameter", "value", context = context)
+
+    ##  Return the approximate filament diameter that the machine requires.
+    #
+    #   The approximate material diameter is the material diameter rounded to
+    #   the nearest millimetre.
+    #
+    #   If the machine has no requirement for the diameter, -1 is returned.
+    #
+    #   \return The approximate filament diameter for the printer
+    @pyqtProperty(float)
+    def approximateMaterialDiameter(self) -> float:
+        return round(float(self.materialDiameter))
+
     ##  Overridden from ContainerStack
     #
     #   It will perform a few extra checks when trying to get properties.
@@ -187,11 +141,6 @@ class ExtruderStack(CuraContainerStack):
             if has_global_dependencies:
                 self.getNextStack().propertiesChanged.emit(key, properties)
 
-    def findDefaultVariant(self):
-        # The default variant is defined in the machine stack and/or definition, so use the machine stack to find
-        # the default variant.
-        return self.getNextStack().findDefaultVariant()
-
 
 extruder_stack_mime = MimeType(
     name = "application/x-cura-extruderstack",

cura/Settings/GlobalStack.py

@@ -125,21 +125,6 @@ class GlobalStack(CuraContainerStack):
     def setNextStack(self, next_stack: ContainerStack) -> None:
         raise Exceptions.InvalidOperationError("Global stack cannot have a next stack!")
 
-    ##  Gets the approximate filament diameter that the machine requires.
-    #
-    #   The approximate material diameter is the material diameter rounded to
-    #   the nearest millimetre.
-    #
-    #   If the machine has no requirement for the diameter, -1 is returned.
-    #
-    #   \return The approximate filament diameter for the printer, as a string.
-    @pyqtProperty(str)
-    def approximateMaterialDiameter(self) -> str:
-        material_diameter = self.definition.getProperty("material_diameter", "value")
-        if material_diameter is None:
-            return "-1"
-        return str(round(float(material_diameter))) #Round, then convert back to string.
-
     # protected:
 
     # Determine whether or not we should try to get the "resolve" property instead of the

cura/Settings/MaterialManager.py

@@ -1,57 +0,0 @@
-# Copyright (c) 2017 Ultimaker B.V.
-# Cura is released under the terms of the LGPLv3 or higher.
-
-from PyQt5.QtCore import QObject, pyqtSlot #To expose data to QML.
-
-from cura.Settings.ContainerManager import ContainerManager
-from UM.Logger import Logger
-from UM.Message import Message #To create a warning message about material diameter.
-from UM.i18n import i18nCatalog #Translated strings.
-
-catalog = i18nCatalog("cura")
-
-##  Handles material-related data, processing requests to change them and
-#   providing data for the GUI.
-#
-#   TODO: Move material-related managing over from the machine manager to here.
-class MaterialManager(QObject):
-    ##  Creates the global values for the material manager to use.
-    def __init__(self, parent = None):
-        super().__init__(parent)
-
-        #Material diameter changed warning message.
-        self._material_diameter_warning_message = Message(catalog.i18nc("@info:status Has a cancel button next to it.",
-            "The selected material diameter causes the material to become incompatible with the current printer."), title = catalog.i18nc("@info:title", "Incompatible Material"))
-        self._material_diameter_warning_message.addAction("Undo", catalog.i18nc("@action:button", "Undo"), None, catalog.i18nc("@action", "Undo changing the material diameter."))
-        self._material_diameter_warning_message.actionTriggered.connect(self._materialWarningMessageAction)
-
-    ##  Creates an instance of the MaterialManager.
-    #
-    #   This should only be called by PyQt to create the singleton instance of
-    #   this class.
-    @staticmethod
-    def createMaterialManager(engine = None, script_engine = None):
-        return MaterialManager()
-
-    @pyqtSlot(str, str)
-    def showMaterialWarningMessage(self, material_id, previous_diameter):
-        self._material_diameter_warning_message.previous_diameter = previous_diameter #Make sure that the undo button can properly undo the action.
-        self._material_diameter_warning_message.material_id = material_id
-        self._material_diameter_warning_message.show()
-
-    ##  Called when clicking "undo" on the warning dialogue for disappeared
-    #   materials.
-    #
-    #   This executes the undo action, restoring the material diameter.
-    #
-    #   \param button The identifier of the button that was pressed.
-    def _materialWarningMessageAction(self, message, button):
-        if button == "Undo":
-            container_manager = ContainerManager.getInstance()
-            container_manager.setContainerMetaDataEntry(self._material_diameter_warning_message.material_id, "properties/diameter", self._material_diameter_warning_message.previous_diameter)
-            approximate_previous_diameter = str(round(float(self._material_diameter_warning_message.previous_diameter)))
-            container_manager.setContainerMetaDataEntry(self._material_diameter_warning_message.material_id, "approximate_diameter", approximate_previous_diameter)
-            container_manager.setContainerProperty(self._material_diameter_warning_message.material_id, "material_diameter", "value", self._material_diameter_warning_message.previous_diameter);
-            message.hide()
-        else:
-            Logger.log("w", "Unknown button action for material diameter warning message: {action}".format(action = button))

cura/Settings/MaterialSettingsVisibilityHandler.py

@@ -3,6 +3,7 @@
 
 import UM.Settings.Models.SettingVisibilityHandler
 
+
 class MaterialSettingsVisibilityHandler(UM.Settings.Models.SettingVisibilityHandler.SettingVisibilityHandler):
     def __init__(self, parent = None, *args, **kwargs):
         super().__init__(parent = parent, *args, **kwargs)

cura/Settings/MaterialsModel.py

@@ -1,37 +0,0 @@
-# Copyright (c) 2017 Ultimaker B.V.
-# Cura is released under the terms of the LGPLv3 or higher.
-
-from typing import Any, List
-from UM.Settings.ContainerRegistry import ContainerRegistry #To listen for changes to the materials.
-from UM.Settings.Models.InstanceContainersModel import InstanceContainersModel #We're extending this class.
-
-##  A model that shows a list of currently valid materials.
-class MaterialsModel(InstanceContainersModel):
-    def __init__(self, parent = None):
-        super().__init__(parent)
-
-        ContainerRegistry.getInstance().containerMetaDataChanged.connect(self._onContainerMetaDataChanged)
-
-    ##  Called when the metadata of the container was changed.
-    #
-    #   This makes sure that we only update when it was a material that changed.
-    #
-    #   \param container The container whose metadata was changed.
-    def _onContainerMetaDataChanged(self, container):
-        if container.getMetaDataEntry("type") == "material": #Only need to update if a material was changed.
-            self._container_change_timer.start()
-
-    def _onContainerChanged(self, container):
-        if container.getMetaDataEntry("type", "") == "material":
-            super()._onContainerChanged(container)
-
-    ##  Group brand together
-    def _sortKey(self, item) -> List[Any]:
-        result = []
-        result.append(item["metadata"]["brand"])
-        result.append(item["metadata"]["material"])
-        result.append(item["metadata"]["name"])
-        result.append(item["metadata"]["color_name"])
-        result.append(item["metadata"]["id"])
-        result.extend(super()._sortKey(item))
-        return result

cura/Settings/ProfilesModel.py

@@ -1,222 +0,0 @@
-# Copyright (c) 2017 Ultimaker B.V.
-# Cura is released under the terms of the LGPLv3 or higher.
-
-from collections import OrderedDict
-
-from PyQt5.QtCore import Qt
-
-from UM.Application import Application
-from UM.Settings.ContainerRegistry import ContainerRegistry
-from UM.Settings.Models.InstanceContainersModel import InstanceContainersModel
-
-from cura.QualityManager import QualityManager
-from cura.Settings.ExtruderManager import ExtruderManager
-
-from typing import List, TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from cura.Settings.ExtruderStack import ExtruderStack
-
-
-##  QML Model for listing the current list of valid quality profiles.
-#
-class ProfilesModel(InstanceContainersModel):
-    LayerHeightRole = Qt.UserRole + 1001
-    LayerHeightWithoutUnitRole = Qt.UserRole + 1002
-    AvailableRole = Qt.UserRole + 1003
-
-    def __init__(self, parent = None):
-        super().__init__(parent)
-        self.addRoleName(self.LayerHeightRole, "layer_height")
-        self.addRoleName(self.LayerHeightWithoutUnitRole, "layer_height_without_unit")
-        self.addRoleName(self.AvailableRole, "available")
-
-        Application.getInstance().globalContainerStackChanged.connect(self._update)
-        Application.getInstance().getMachineManager().activeVariantChanged.connect(self._update)
-        Application.getInstance().getMachineManager().activeStackChanged.connect(self._update)
-        Application.getInstance().getMachineManager().activeMaterialChanged.connect(self._update)
-
-        self._empty_quality = ContainerRegistry.getInstance().findContainers(id = "empty_quality")[0]
-
-    # Factory function, used by QML
-    @staticmethod
-    def createProfilesModel(engine, js_engine):
-        return ProfilesModel.getInstance()
-
-    ##  Get the singleton instance for this class.
-    @classmethod
-    def getInstance(cls) -> "ProfilesModel":
-        # Note: Explicit use of class name to prevent issues with inheritance.
-        if not ProfilesModel.__instance:
-            ProfilesModel.__instance = cls()
-        return ProfilesModel.__instance
-
-    @classmethod
-    def hasInstance(cls) -> bool:
-        return ProfilesModel.__instance is not None
-
-    __instance = None   # type: "ProfilesModel"
-
-    ##  Fetch the list of containers to display.
-    #
-    #   See UM.Settings.Models.InstanceContainersModel._fetchInstanceContainers().
-    def _fetchInstanceContainers(self):
-        global_container_stack = Application.getInstance().getGlobalContainerStack()
-        if global_container_stack is None:
-            return {}, {}
-        global_stack_definition = global_container_stack.definition
-
-        # Get the list of extruders and place the selected extruder at the front of the list.
-        extruder_stacks = self._getOrderedExtruderStacksList()
-        materials = [extruder.material for extruder in extruder_stacks]
-
-        # Fetch the list of usable qualities across all extruders.
-        # The actual list of quality profiles come from the first extruder in the extruder list.
-        result = QualityManager.getInstance().findAllUsableQualitiesForMachineAndExtruders(global_container_stack, extruder_stacks)
-
-        # The usable quality types are set
-        quality_type_set = set([x.getMetaDataEntry("quality_type") for x in result])
-
-        # Fetch all qualities available for this machine and the materials selected in extruders
-        all_qualities = QualityManager.getInstance().findAllQualitiesForMachineAndMaterials(global_stack_definition, materials)
-
-        # If in the all qualities there is some of them that are not available due to incompatibility with materials
-        # we also add it so that they will appear in the slide quality bar. However in recomputeItems will be marked as
-        # not available so they will be shown in gray
-        for quality in all_qualities:
-            if quality.getMetaDataEntry("quality_type") not in quality_type_set:
-                result.append(quality)
-
-        if len(result) > 1 and self._empty_quality in result:
-            result.remove(self._empty_quality)
-
-        return {item.getId(): item for item in result}, {} #Only return true profiles for now, no metadata. The quality manager is not able to get only metadata yet.
-
-    ##  Re-computes the items in this model, and adds the layer height role.
-    def _recomputeItems(self):
-        # Some globals that we can re-use.
-        global_container_stack = Application.getInstance().getGlobalContainerStack()
-        if global_container_stack is None:
-            return
-
-        extruder_stacks = self._getOrderedExtruderStacksList()
-        container_registry = ContainerRegistry.getInstance()
-
-        # Get a list of usable/available qualities for this machine and material
-        qualities = QualityManager.getInstance().findAllUsableQualitiesForMachineAndExtruders(global_container_stack, extruder_stacks)
-
-        unit = global_container_stack.getBottom().getProperty("layer_height", "unit")
-        if not unit:
-            unit = ""
-
-        # group all quality items according to quality_types, so we know which profile suits the currently
-        # active machine and material, and later yield the right ones.
-        tmp_all_quality_items = OrderedDict()
-        for item in super()._recomputeItems():
-            profiles = container_registry.findContainersMetadata(id = item["id"])
-            if not profiles or "quality_type" not in profiles[0]:
-                quality_type = ""
-            else:
-                quality_type = profiles[0]["quality_type"]
-
-            if quality_type not in tmp_all_quality_items:
-                tmp_all_quality_items[quality_type] = {"suitable_container": None, "all_containers": []}
-
-            tmp_all_quality_items[quality_type]["all_containers"].append(item)
-            if tmp_all_quality_items[quality_type]["suitable_container"] is None:
-                tmp_all_quality_items[quality_type]["suitable_container"] = item
-
-        # reverse the ordering (finest first, coarsest last)
-        all_quality_items = OrderedDict()
-        for key in reversed(tmp_all_quality_items.keys()):
-            all_quality_items[key] = tmp_all_quality_items[key]
-
-        # First the suitable containers are set in the model
-        containers = []
-        for data_item in all_quality_items.values():
-            suitable_item = data_item["suitable_container"]
-            if suitable_item is not None:
-                containers.append(suitable_item)
-
-        # Once the suitable containers are collected, the rest of the containers are appended
-        for data_item in all_quality_items.values():
-            for item in data_item["all_containers"]:
-                if item not in containers:
-                    containers.append(item)
-
-        # Now all the containers are set
-        for item in containers:
-            profile = container_registry.findContainers(id = item["id"])
-
-            # When for some reason there is no profile container in the registry
-            if not profile:
-                self._setItemLayerHeight(item, "", "")
-                item["available"] = False
-                yield item
-                continue
-
-            profile = profile[0]
-
-            # When there is a profile but it's an empty quality should. It's shown in the list (they are "Not Supported" profiles)
-            if profile.getId() == "empty_quality":
-                self._setItemLayerHeight(item, "", "")
-                item["available"] = True
-                yield item
-                continue
-
-            item["available"] = profile in qualities
-
-            # Easy case: This profile defines its own layer height.
-            if profile.hasProperty("layer_height", "value"):
-                self._setItemLayerHeight(item, profile.getProperty("layer_height", "value"), unit)
-                yield item
-                continue
-
-            machine_manager = Application.getInstance().getMachineManager()
-
-            # Quality-changes profile that has no value for layer height. Get the corresponding quality profile and ask that profile.
-            quality_type = profile.getMetaDataEntry("quality_type", None)
-            if quality_type:
-                quality_results = machine_manager.determineQualityAndQualityChangesForQualityType(quality_type)
-                for quality_result in quality_results:
-                    if quality_result["stack"] is global_container_stack:
-                        quality = quality_result["quality"]
-                        break
-                else:
-                    # No global container stack in the results:
-                    if quality_results:
-                        # Take any of the extruders.
-                        quality = quality_results[0]["quality"]
-                    else:
-                        quality = None
-                if quality and quality.hasProperty("layer_height", "value"):
-                    self._setItemLayerHeight(item, quality.getProperty("layer_height", "value"), unit)
-                    yield item
-                    continue
-
-            # Quality has no value for layer height either. Get the layer height from somewhere lower in the stack.
-            skip_until_container = global_container_stack.material
-            if not skip_until_container or skip_until_container == ContainerRegistry.getInstance().getEmptyInstanceContainer():  # No material in stack.
-                skip_until_container = global_container_stack.variant
-                if not skip_until_container or skip_until_container == ContainerRegistry.getInstance().getEmptyInstanceContainer():  # No variant in stack.
-                    skip_until_container = global_container_stack.getBottom()
-            self._setItemLayerHeight(item, global_container_stack.getRawProperty("layer_height", "value", skip_until_container = skip_until_container.getId()), unit)  # Fall through to the currently loaded material.
-            yield item
-
-    ## Get a list of extruder stacks with the active extruder at the front of the list.
-    @staticmethod
-    def _getOrderedExtruderStacksList() -> List["ExtruderStack"]:
-        extruder_manager = ExtruderManager.getInstance()
-        extruder_stacks = extruder_manager.getActiveExtruderStacks()
-        active_extruder = extruder_manager.getActiveExtruderStack()
-
-        if active_extruder in extruder_stacks:
-            extruder_stacks.remove(active_extruder)
-            extruder_stacks = [active_extruder] + extruder_stacks
-
-        return extruder_stacks
-
-    @staticmethod
-    def _setItemLayerHeight(item, value, unit):
-        item["layer_height"] = str(value) + unit
-        item["layer_height_without_unit"] = str(value)

cura/Settings/QualityAndUserProfilesModel.py

@@ -1,54 +0,0 @@
-# Copyright (c) 2016 Ultimaker B.V.
-# Cura is released under the terms of the LGPLv3 or higher.
-from UM.Application import Application
-from UM.Settings.ContainerRegistry import ContainerRegistry
-
-from cura.QualityManager import QualityManager
-from cura.Settings.ProfilesModel import ProfilesModel
-from cura.Settings.ExtruderManager import ExtruderManager
-
-
-##  QML Model for listing the current list of valid quality and quality changes profiles.
-#
-class QualityAndUserProfilesModel(ProfilesModel):
-    def __init__(self, parent = None):
-        super().__init__(parent)
-
-        self._empty_quality = ContainerRegistry.getInstance().findInstanceContainers(id = "empty_quality")[0]
-
-    ##  Fetch the list of containers to display.
-    #
-    #   See UM.Settings.Models.InstanceContainersModel._fetchInstanceContainers().
-    def _fetchInstanceContainers(self):
-        global_container_stack = Application.getInstance().getGlobalContainerStack()
-        if not global_container_stack:
-            return {}, {}
-
-        # Fetch the list of quality changes.
-        quality_manager = QualityManager.getInstance()
-        machine_definition = quality_manager.getParentMachineDefinition(global_container_stack.definition)
-        quality_changes_list = quality_manager.findAllQualityChangesForMachine(machine_definition)
-
-        extruder_manager = ExtruderManager.getInstance()
-        active_extruder = extruder_manager.getActiveExtruderStack()
-        extruder_stacks = self._getOrderedExtruderStacksList()
-
-        # Fetch the list of usable qualities across all extruders.
-        # The actual list of quality profiles come from the first extruder in the extruder list.
-        quality_list = quality_manager.findAllUsableQualitiesForMachineAndExtruders(global_container_stack, extruder_stacks)
-
-        # Filter the quality_change by the list of available quality_types
-        quality_type_set = set([x.getMetaDataEntry("quality_type") for x in quality_list])
-        # Also show custom profiles based on "Not Supported" quality profile
-        quality_type_set.add(self._empty_quality.getMetaDataEntry("quality_type"))
-        filtered_quality_changes = {qc.getId(): qc for qc in quality_changes_list if
-                                    qc.getMetaDataEntry("quality_type") in quality_type_set and
-                                    qc.getMetaDataEntry("extruder") is not None and
-                                    (qc.getMetaDataEntry("extruder") == active_extruder.definition.getMetaDataEntry("quality_definition") or
-                                     qc.getMetaDataEntry("extruder") == active_extruder.definition.getId())}
-
-        result = filtered_quality_changes
-        for q in quality_list:
-            if q.getId() != "empty_quality":
-                result[q.getId()] = q
-        return result, {} #Only return true profiles for now, no metadata. The quality manager is not able to get only metadata yet.

cura/Settings/QualitySettingsModel.py

@@ -1,249 +0,0 @@
-# Copyright (c) 2017 Ultimaker B.V.
-# Cura is released under the terms of the LGPLv3 or higher.
-
-from PyQt5.QtCore import pyqtProperty, pyqtSignal, Qt
-
-from UM.Logger import Logger
-import UM.Qt
-from UM.Application import Application
-from UM.Settings.ContainerRegistry import ContainerRegistry
-import os
-
-from UM.i18n import i18nCatalog
-
-
-class QualitySettingsModel(UM.Qt.ListModel.ListModel):
-    KeyRole = Qt.UserRole + 1
-    LabelRole = Qt.UserRole + 2
-    UnitRole = Qt.UserRole + 3
-    ProfileValueRole = Qt.UserRole + 4
-    ProfileValueSourceRole = Qt.UserRole + 5
-    UserValueRole = Qt.UserRole + 6
-    CategoryRole = Qt.UserRole + 7
-
-    def __init__(self, parent = None):
-        super().__init__(parent = parent)
-
-        self._container_registry = ContainerRegistry.getInstance()
-
-        self._extruder_id = None
-        self._extruder_definition_id = None
-        self._quality_id = None
-        self._material_id = None
-        self._i18n_catalog = None
-
-        self.addRoleName(self.KeyRole, "key")
-        self.addRoleName(self.LabelRole, "label")
-        self.addRoleName(self.UnitRole, "unit")
-        self.addRoleName(self.ProfileValueRole, "profile_value")
-        self.addRoleName(self.ProfileValueSourceRole, "profile_value_source")
-        self.addRoleName(self.UserValueRole, "user_value")
-        self.addRoleName(self.CategoryRole, "category")
-
-        self._empty_quality = self._container_registry.findInstanceContainers(id = "empty_quality")[0]
-
-    def setExtruderId(self, extruder_id):
-        if extruder_id != self._extruder_id:
-            self._extruder_id = extruder_id
-            self._update()
-            self.extruderIdChanged.emit()
-
-    extruderIdChanged = pyqtSignal()
-    @pyqtProperty(str, fset = setExtruderId, notify = extruderIdChanged)
-    def extruderId(self):
-        return self._extruder_id
-
-    def setExtruderDefinition(self, extruder_definition):
-        if extruder_definition != self._extruder_definition_id:
-            self._extruder_definition_id = extruder_definition
-            self._update()
-            self.extruderDefinitionChanged.emit()
-
-    extruderDefinitionChanged = pyqtSignal()
-    @pyqtProperty(str, fset = setExtruderDefinition, notify = extruderDefinitionChanged)
-    def extruderDefinition(self):
-        return self._extruder_definition_id
-
-    def setQuality(self, quality):
-        if quality != self._quality_id:
-            self._quality_id = quality
-            self._update()
-            self.qualityChanged.emit()
-
-    qualityChanged = pyqtSignal()
-    @pyqtProperty(str, fset = setQuality, notify = qualityChanged)
-    def quality(self):
-        return self._quality_id
-
-    def setMaterial(self, material):
-        if material != self._material_id:
-            self._material_id = material
-            self._update()
-            self.materialChanged.emit()
-
-    materialChanged = pyqtSignal()
-    @pyqtProperty(str, fset = setMaterial, notify = materialChanged)
-    def material(self):
-        return self._material_id
-
-    def _update(self):
-        if not self._quality_id:
-            return
-
-        items = []
-
-        definition_container = Application.getInstance().getGlobalContainerStack().getBottom()
-
-        containers = self._container_registry.findInstanceContainers(id = self._quality_id)
-        if not containers:
-            Logger.log("w", "Could not find a quality container with id %s", self._quality_id)
-            return
-
-        quality_container = None
-        quality_changes_container = None
-
-        if containers[0].getMetaDataEntry("type") == "quality":
-            quality_container = containers[0]
-        else:
-            quality_changes_container = containers[0]
-
-            if quality_changes_container.getMetaDataEntry("quality_type") == self._empty_quality.getMetaDataEntry("quality_type"):
-                quality_container = self._empty_quality
-            else:
-                criteria = {
-                    "type": "quality",
-                    "quality_type": quality_changes_container.getMetaDataEntry("quality_type"),
-                    "definition": quality_changes_container.getDefinition().getId()
-                }
-
-                quality_container = self._container_registry.findInstanceContainers(**criteria)
-                if not quality_container:
-                    Logger.log("w", "Could not find a quality container matching quality changes %s", quality_changes_container.getId())
-                    return
-
-                quality_container = quality_container[0]
-
-        quality_type = quality_container.getMetaDataEntry("quality_type")
-
-        if quality_type == "not_supported":
-            containers = []
-        else:
-            definition_id = Application.getInstance().getMachineManager().getQualityDefinitionId(quality_container.getDefinition())
-            definition = quality_container.getDefinition()
-
-            # Check if the definition container has a translation file.
-            definition_suffix = ContainerRegistry.getMimeTypeForContainer(type(definition)).preferredSuffix
-            catalog = i18nCatalog(os.path.basename(definition_id + "." + definition_suffix))
-            if catalog.hasTranslationLoaded():
-                self._i18n_catalog = catalog
-
-            for file_name in quality_container.getDefinition().getInheritedFiles():
-                catalog = i18nCatalog(os.path.basename(file_name))
-                if catalog.hasTranslationLoaded():
-                    self._i18n_catalog = catalog
-
-            criteria = {"type": "quality", "quality_type": quality_type, "definition": definition_id}
-
-            if self._material_id and self._material_id != "empty_material":
-                criteria["material"] = self._material_id
-
-            criteria["extruder"] = self._extruder_id
-
-            containers = self._container_registry.findInstanceContainers(**criteria)
-            if not containers:
-                # Try again, this time without extruder
-                new_criteria = criteria.copy()
-                new_criteria.pop("extruder")
-                containers = self._container_registry.findInstanceContainers(**new_criteria)
-
-            if not containers and "material" in criteria:
-                # Try again, this time without material
-                criteria.pop("material", None)
-                containers = self._container_registry.findInstanceContainers(**criteria)
-
-            if not containers:
-                # Try again, this time without material or extruder
-                criteria.pop("extruder") # "material" has already been popped
-                containers = self._container_registry.findInstanceContainers(**criteria)
-
-            if not containers:
-                Logger.log("w", "Could not find any quality containers matching the search criteria %s" % str(criteria))
-                return
-
-        if quality_changes_container:
-            if quality_type == "not_supported":
-                criteria = {"type": "quality_changes", "quality_type": quality_type, "name": quality_changes_container.getName()}
-            else:
-                criteria = {"type": "quality_changes", "quality_type": quality_type, "definition": definition_id, "name": quality_changes_container.getName()}
-                if self._extruder_definition_id != "":
-                    extruder_definitions = self._container_registry.findDefinitionContainers(id = self._extruder_definition_id)
-                    if extruder_definitions:
-                        criteria["extruder"] = Application.getInstance().getMachineManager().getQualityDefinitionId(extruder_definitions[0])
-                        criteria["name"] = quality_changes_container.getName()
-                else:
-                    criteria["extruder"] = None
-
-            changes = self._container_registry.findInstanceContainers(**criteria)
-            if changes:
-                containers.extend(changes)
-
-        global_container_stack = Application.getInstance().getGlobalContainerStack()
-
-        current_category = ""
-        for definition in definition_container.findDefinitions():
-            if definition.type == "category":
-                current_category = definition.label
-                if self._i18n_catalog:
-                    current_category = self._i18n_catalog.i18nc(definition.key + " label", definition.label)
-                continue
-
-            profile_value = None
-            profile_value_source = ""
-            for container in containers:
-                new_value = container.getProperty(definition.key, "value")
-
-                if new_value is not None:
-                    profile_value_source = container.getMetaDataEntry("type")
-                    profile_value = new_value
-
-                # Global tab should use resolve (if there is one)
-                if not self._extruder_id:
-                    resolve_value = global_container_stack.getProperty(definition.key, "resolve")
-                    if resolve_value is not None and profile_value is not None and profile_value_source != "quality_changes":
-                        profile_value = resolve_value
-
-            user_value = None
-            if not self._extruder_id:
-                user_value = global_container_stack.getTop().getProperty(definition.key, "value")
-            else:
-                extruder_stack = self._container_registry.findContainerStacks(id = self._extruder_id)
-                if extruder_stack:
-                    user_value = extruder_stack[0].getTop().getProperty(definition.key, "value")
-
-            if profile_value is None and user_value is None:
-                continue
-
-            settable_per_extruder = global_container_stack.getProperty(definition.key, "settable_per_extruder")
-            # If a setting is not settable per extruder (global) and we're looking at an extruder tab, don't show this value.
-            if self._extruder_id != "" and not settable_per_extruder:
-                continue
-
-            # If a setting is settable per extruder (not global) and we're looking at global tab, don't show this value.
-            if self._extruder_id == "" and settable_per_extruder:
-                continue
-
-            label = definition.label
-            if self._i18n_catalog:
-                label = self._i18n_catalog.i18nc(definition.key + " label", label)
-
-            items.append({
-                "key": definition.key,
-                "label": label,
-                "unit": definition.unit,
-                "profile_value": "" if profile_value is None else str(profile_value),  # it is for display only
-                "profile_value_source": profile_value_source,
-                "user_value": "" if user_value is None else str(user_value),
-                "category": current_category
-            })
-
-        self.setItems(items)

cura/Settings/UserProfilesModel.py

@@ -1,85 +0,0 @@
-# Copyright (c) 2017 Ultimaker B.V.
-# Cura is released under the terms of the LGPLv3 or higher.
-
-from UM.Application import Application
-from UM.Settings.ContainerRegistry import ContainerRegistry
-
-from cura.QualityManager import QualityManager
-from cura.Settings.ProfilesModel import ProfilesModel
-from cura.Settings.ExtruderManager import ExtruderManager
-
-##  QML Model for listing the current list of valid quality changes profiles.
-#
-class UserProfilesModel(ProfilesModel):
-    def __init__(self, parent = None):
-        super().__init__(parent)
-
-        #Need to connect to the metaDataChanged signal of the active materials.
-        self.__current_extruders = []
-        self.__current_materials = []
-
-        Application.getInstance().getExtruderManager().extrudersChanged.connect(self.__onExtrudersChanged)
-        self.__onExtrudersChanged()
-        self.__current_materials = [extruder.material for extruder in self.__current_extruders]
-        for material in self.__current_materials:
-            material.metaDataChanged.connect(self._onContainerChanged)
-
-        self._empty_quality = ContainerRegistry.getInstance().findContainers(id = "empty_quality")[0]
-
-    ##  Fetch the list of containers to display.
-    #
-    #   See UM.Settings.Models.InstanceContainersModel._fetchInstanceContainers().
-    def _fetchInstanceContainers(self):
-        global_container_stack = Application.getInstance().getGlobalContainerStack()
-        if not global_container_stack:
-            return {}, {}
-
-        # Fetch the list of quality changes.
-        quality_manager = QualityManager.getInstance()
-        machine_definition = quality_manager.getParentMachineDefinition(global_container_stack.definition)
-        quality_changes_list = quality_manager.findAllQualityChangesForMachine(machine_definition)
-
-        extruder_manager = ExtruderManager.getInstance()
-        active_extruder = extruder_manager.getActiveExtruderStack()
-        extruder_stacks = self._getOrderedExtruderStacksList()
-
-        # Fetch the list of usable qualities across all extruders.
-        # The actual list of quality profiles come from the first extruder in the extruder list.
-        quality_list = quality_manager.findAllUsableQualitiesForMachineAndExtruders(global_container_stack, extruder_stacks)
-
-        # Filter the quality_change by the list of available quality_types
-        quality_type_set = set([x.getMetaDataEntry("quality_type") for x in quality_list])
-        quality_type_set.add(self._empty_quality.getMetaDataEntry("quality_type"))
-
-        filtered_quality_changes = {qc.getId():qc for qc in quality_changes_list if
-                                    qc.getMetaDataEntry("quality_type") in quality_type_set and
-                                    qc.getMetaDataEntry("extruder") is not None and
-                                    (qc.getMetaDataEntry("extruder") == active_extruder.definition.getMetaDataEntry("quality_definition") or
-                                     qc.getMetaDataEntry("extruder") == active_extruder.definition.getId())}
-
-        return filtered_quality_changes, {} #Only return true profiles for now, no metadata. The quality manager is not able to get only metadata yet.
-
-    ##  Called when a container changed on an extruder stack.
-    #
-    #   If it's the material we need to connect to the metaDataChanged signal of
-    #   that.
-    def __onContainerChanged(self, new_container):
-        #Careful not to update when a quality or quality changes profile changed!
-        #If you then update you're going to have an infinite recursion because the update may change the container.
-        if new_container.getMetaDataEntry("type") == "material":
-            for material in self.__current_materials:
-                material.metaDataChanged.disconnect(self._onContainerChanged)
-            self.__current_materials = [extruder.material for extruder in self.__current_extruders]
-            for material in self.__current_materials:
-                material.metaDataChanged.connect(self._onContainerChanged)
-
-    ##  Called when the current set of extruders change.
-    #
-    #   This makes sure that we are listening to the signal for when the
-    #   materials change.
-    def __onExtrudersChanged(self):
-        for extruder in self.__current_extruders:
-            extruder.containersChanged.disconnect(self.__onContainerChanged)
-        self.__current_extruders = Application.getInstance().getExtruderManager().getExtruderStacks()
-        for extruder in self.__current_extruders:
-            extruder.containersChanged.connect(self.__onContainerChanged)

plugins/3MFReader/ThreeMFReader.py

@@ -4,26 +4,28 @@
 import os.path
 import zipfile
 
+import numpy
+
+import Savitar
+
+from UM.Application import Application
 from UM.Logger import Logger
 from UM.Math.Matrix import Matrix
 from UM.Math.Vector import Vector
 from UM.Mesh.MeshBuilder import MeshBuilder
 from UM.Mesh.MeshReader import MeshReader
 from UM.Scene.GroupDecorator import GroupDecorator
+
 from cura.Settings.SettingOverrideDecorator import SettingOverrideDecorator
-from UM.Application import Application
 from cura.Settings.ExtruderManager import ExtruderManager
-from cura.QualityManager import QualityManager
 from cura.Scene.CuraSceneNode import CuraSceneNode
 from cura.Scene.BuildPlateDecorator import BuildPlateDecorator
 from cura.Scene.SliceableObjectDecorator import SliceableObjectDecorator
 from cura.Scene.ZOffsetDecorator import ZOffsetDecorator
+from cura.Machines.QualityManager import getMachineDefinitionIDForQualitySearch
 
 MYPY = False
 
-import Savitar
-import numpy
-
 try:
     if not MYPY:
         import xml.etree.cElementTree as ET
@@ -77,7 +79,7 @@ class ThreeMFReader(MeshReader):
         self._object_count += 1
         node_name = "Object %s" % self._object_count
 
-        active_build_plate = Application.getInstance().getBuildPlateModel().activeBuildPlate
+        active_build_plate = Application.getInstance().getMultiBuildPlateModel().activeBuildPlate
 
         um_node = CuraSceneNode()
         um_node.addDecorator(BuildPlateDecorator(active_build_plate))
@@ -120,8 +122,8 @@ class ThreeMFReader(MeshReader):
                     um_node.callDecoration("setActiveExtruder", default_stack.getId())
 
                 # Get the definition & set it
-                definition = QualityManager.getInstance().getParentMachineDefinition(global_container_stack.getBottom())
+                definition_id = getMachineDefinitionIDForQualitySearch(global_container_stack)
-                um_node.callDecoration("getStack").getTop().setDefinition(definition.getId())
+                um_node.callDecoration("getStack").getTop().setDefinition(definition_id)
 
             setting_container = um_node.callDecoration("getStack").getTop()
 

plugins/3MFReader/ThreeMFWorkspaceReader.py

@@ -23,7 +23,6 @@ from cura.Settings.ExtruderManager import ExtruderManager
 from cura.Settings.ExtruderStack import ExtruderStack
 from cura.Settings.GlobalStack import GlobalStack
 from cura.Settings.CuraContainerStack import _ContainerIndexes
-from cura.QualityManager import QualityManager
 from cura.CuraApplication import CuraApplication
 
 from configparser import ConfigParser
@@ -855,10 +854,11 @@ class ThreeMFWorkspaceReader(WorkspaceReader):
         if machine_extruder_count is not None:
             extruder_stacks_in_use = extruder_stacks[:machine_extruder_count]
 
-        available_quality = QualityManager.getInstance().findAllUsableQualitiesForMachineAndExtruders(global_stack,
+        quality_manager = CuraApplication.getInstance()._quality_manager
-                                                                                                      extruder_stacks_in_use)
+        all_quality_groups = quality_manager.getQualityGroups(global_stack)
+        available_quality_types = [qt for qt, qg in all_quality_groups.items() if qg.is_available]
         if not has_not_supported:
-            has_not_supported = not available_quality
+            has_not_supported = not available_quality_types
 
         quality_has_been_changed = False
 
@@ -872,8 +872,6 @@ class ThreeMFWorkspaceReader(WorkspaceReader):
             # The machine in the project has non-empty quality and there are usable qualities for this machine.
             # We need to check if the current quality_type is still usable for this machine, if not, then the quality
             # will be reset to the "preferred quality" if present, otherwise "normal".
-            available_quality_types = [q.getMetaDataEntry("quality_type") for q in available_quality]
-
             if global_stack.quality.getMetaDataEntry("quality_type") not in available_quality_types:
                 # We are here because the quality_type specified in the project is not supported any more,
                 # so we need to switch it to the "preferred quality" if present, otherwise "normal".
@@ -1084,10 +1082,13 @@ class ThreeMFWorkspaceReader(WorkspaceReader):
             CuraApplication.getInstance().getMachineManager().activeQualityChanged.emit()
 
         # Actually change the active machine.
-        Application.getInstance().setGlobalContainerStack(global_stack)
+        #
-
+        # This is scheduled for later is because it depends on the Variant/Material/Qualitiy Managers to have the latest
-        # Notify everything/one that is to notify about changes.
+        # data, but those managers will only update upon a container/container metadata changed signal. Because this
-        global_stack.containersChanged.emit(global_stack.getTop())
+        # function is running on the main thread (Qt thread), although those "changed" signals have been emitted, but
+        # they won't take effect until this function is done.
+        # To solve this, we schedule _updateActiveMachine() for later so it will have the latest data.
+        CuraApplication.getInstance().callLater(self._updateActiveMachine, global_stack)
 
         # Load all the nodes / meshdata of the workspace
         nodes = self._3mf_mesh_reader.read(file_name)
@@ -1100,6 +1101,14 @@ class ThreeMFWorkspaceReader(WorkspaceReader):
         self.setWorkspaceName(base_file_name)
         return nodes
 
+    def _updateActiveMachine(self, global_stack):
+        # Actually change the active machine.
+        machine_manager = Application.getInstance().getMachineManager()
+        machine_manager.setActiveMachine(global_stack.getId())
+
+        # Notify everything/one that is to notify about changes.
+        global_stack.containersChanged.emit(global_stack.getTop())
+
     ##  HACK: Replaces the material container in the given stack with a newly created material container.
     #         This function is used when the user chooses to resolve material conflicts by creating new ones.
     def _replaceStackMaterialWithNew(self, stack, old_new_material_dict):

plugins/3MFWriter/ThreeMFWriter.py

@@ -68,7 +68,7 @@ class ThreeMFWriter(MeshWriter):
         if not isinstance(um_node, SceneNode):
             return None
 
-        active_build_plate_nr = CuraApplication.getInstance().getBuildPlateModel().activeBuildPlate
+        active_build_plate_nr = CuraApplication.getInstance().getMultiBuildPlateModel().activeBuildPlate
         if um_node.callDecoration("getBuildPlateNumber") != active_build_plate_nr:
             return
 

plugins/CuraEngineBackend/CuraEngineBackend.py

@@ -70,7 +70,7 @@ class CuraEngineBackend(QObject, Backend):
         # Workaround to disable layer view processing if layer view is not active.
         self._layer_view_active = False
         Application.getInstance().getController().activeViewChanged.connect(self._onActiveViewChanged)
-        Application.getInstance().getBuildPlateModel().activeBuildPlateChanged.connect(self._onActiveViewChanged)
+        Application.getInstance().getMultiBuildPlateModel().activeBuildPlateChanged.connect(self._onActiveViewChanged)
         self._onActiveViewChanged()
         self._stored_layer_data = []
         self._stored_optimized_layer_data = {}  # key is build plate number, then arrays are stored until they go to the ProcessSlicesLayersJob
@@ -88,7 +88,6 @@ class CuraEngineBackend(QObject, Backend):
         #
         self._global_container_stack = None
         Application.getInstance().globalContainerStackChanged.connect(self._onGlobalStackChanged)
-        Application.getInstance().getExtruderManager().extrudersAdded.connect(self._onGlobalStackChanged)
         self._onGlobalStackChanged()
 
         Application.getInstance().stacksValidationFinished.connect(self._onStackErrorCheckFinished)
@@ -207,7 +206,7 @@ class CuraEngineBackend(QObject, Backend):
             self._scene.gcode_dict = {}
 
         # see if we really have to slice
-        active_build_plate = Application.getInstance().getBuildPlateModel().activeBuildPlate
+        active_build_plate = Application.getInstance().getMultiBuildPlateModel().activeBuildPlate
         build_plate_to_be_sliced = self._build_plates_to_be_sliced.pop(0)
         Logger.log("d", "Going to slice build plate [%s]!" % build_plate_to_be_sliced)
         num_objects = self._numObjects()
@@ -497,7 +496,7 @@ class CuraEngineBackend(QObject, Backend):
                     node.getParent().removeChild(node)
 
     def markSliceAll(self):
-        for build_plate_number in range(Application.getInstance().getBuildPlateModel().maxBuildPlate + 1):
+        for build_plate_number in range(Application.getInstance().getMultiBuildPlateModel().maxBuildPlate + 1):
             if build_plate_number not in self._build_plates_to_be_sliced:
                 self._build_plates_to_be_sliced.append(build_plate_number)
 
@@ -582,7 +581,7 @@ class CuraEngineBackend(QObject, Backend):
         Logger.log("d", "Slicing took %s seconds", time() - self._slice_start_time )
 
         # See if we need to process the sliced layers job.
-        active_build_plate = Application.getInstance().getBuildPlateModel().activeBuildPlate
+        active_build_plate = Application.getInstance().getMultiBuildPlateModel().activeBuildPlate
         if self._layer_view_active and (self._process_layers_job is None or not self._process_layers_job.isRunning()) and active_build_plate == self._start_slice_job_build_plate:
             self._startProcessSlicedLayersJob(active_build_plate)
         # self._onActiveViewChanged()
@@ -702,7 +701,7 @@ class CuraEngineBackend(QObject, Backend):
         application = Application.getInstance()
         view = application.getController().getActiveView()
         if view:
-            active_build_plate = application.getBuildPlateModel().activeBuildPlate
+            active_build_plate = application.getMultiBuildPlateModel().activeBuildPlate
             if view.getPluginId() == "SimulationView":  # If switching to layer view, we should process the layers if that hasn't been done yet.
                 self._layer_view_active = True
                 # There is data and we're not slicing at the moment

plugins/CuraEngineBackend/ProcessGCodeJob.py

@@ -12,6 +12,6 @@ class ProcessGCodeLayerJob(Job):
         self._message = message
 
     def run(self):
-        active_build_plate_id = Application.getInstance().getBuildPlateModel().activeBuildPlate
+        active_build_plate_id = Application.getInstance().getMultiBuildPlateModel().activeBuildPlate
         gcode_list = self._scene.gcode_dict[active_build_plate_id]
         gcode_list.append(self._message.data.decode("utf-8", "replace"))

plugins/GCodeReader/FlavorParser.py

@@ -437,7 +437,7 @@ class FlavorParser:
         scene_node.addDecorator(gcode_list_decorator)
 
         # gcode_dict stores gcode_lists for a number of build plates.
-        active_build_plate_id = Application.getInstance().getBuildPlateModel().activeBuildPlate
+        active_build_plate_id = Application.getInstance().getMultiBuildPlateModel().activeBuildPlate
         gcode_dict = {active_build_plate_id: gcode_list}
         Application.getInstance().getController().getScene().gcode_dict = gcode_dict
 

plugins/GCodeWriter/GCodeWriter.py

@@ -60,7 +60,7 @@ class GCodeWriter(MeshWriter):
             Logger.log("e", "GCodeWriter does not support non-text mode.")
             return False
 
-        active_build_plate = Application.getInstance().getBuildPlateModel().activeBuildPlate
+        active_build_plate = Application.getInstance().getMultiBuildPlateModel().activeBuildPlate
         scene = Application.getInstance().getController().getScene()
         gcode_dict = getattr(scene, "gcode_dict")
         if not gcode_dict:

plugins/PerObjectSettingsTool/PerObjectItem.qml

@@ -32,11 +32,11 @@ UM.TooltipArea
             if(checked)
             {
                 addedSettingsModel.setVisible(model.key, checked);
-                UM.ActiveTool.triggerAction("subscribeForSettingValidation", model.key)
+                UM.ActiveTool.triggerActionWithData("subscribeForSettingValidation", model.key)
             }
             else
             {
-                UM.ActiveTool.triggerAction("unsubscribeForSettingValidation", model.key)
+                UM.ActiveTool.triggerActionWithData("unsubscribeForSettingValidation", model.key)
                 addedSettingsModel.setVisible(model.key, checked);
             }
             UM.ActiveTool.forceUpdate();

plugins/PerObjectSettingsTool/PerObjectSettingsPanel.qml

@@ -242,7 +242,7 @@ Item {
 
                             onClicked: {
                                 addedSettingsModel.setVisible(model.key, false)
-                                UM.ActiveTool.triggerAction("unsubscribeForSettingValidation", model.key)
+                                UM.ActiveTool.triggerActionWithData("unsubscribeForSettingValidation", model.key)
                             }
 
                             style: ButtonStyle

plugins/PostProcessingPlugin/PostProcessingPlugin.py

@@ -62,7 +62,7 @@ class PostProcessingPlugin(QObject, Extension):
             return
 
         # get gcode list for the active build plate
-        active_build_plate_id = Application.getInstance().getBuildPlateModel().activeBuildPlate
+        active_build_plate_id = Application.getInstance().getMultiBuildPlateModel().activeBuildPlate
         gcode_list = gcode_dict[active_build_plate_id]
         if not gcode_list:
             return

plugins/SimulationView/SimulationPass.py

@@ -93,7 +93,7 @@ class SimulationPass(RenderPass):
         self.bind()
 
         tool_handle_batch = RenderBatch(self._tool_handle_shader, type = RenderBatch.RenderType.Overlay, backface_cull = True)
-        active_build_plate = Application.getInstance().getBuildPlateModel().activeBuildPlate
+        active_build_plate = Application.getInstance().getMultiBuildPlateModel().activeBuildPlate
         head_position = None  # Indicates the current position of the print head
         nozzle_node = None
 

plugins/SupportEraser/SupportEraser.py

@@ -45,7 +45,7 @@ class SupportEraser(Tool):
         move_vector = Vector(0, 5, 0)
         node.setPosition(move_vector)
 
-        active_build_plate = Application.getInstance().getBuildPlateModel().activeBuildPlate
+        active_build_plate = Application.getInstance().getMultiBuildPlateModel().activeBuildPlate
 
         node.addDecorator(SettingOverrideDecorator())
         node.addDecorator(BuildPlateDecorator(active_build_plate))

plugins/UM3NetworkPrinting/ClusterUM3OutputDevice.py

@@ -81,7 +81,7 @@ class ClusterUM3OutputDevice(NetworkedPrinterOutputDevice):
         self.writeStarted.emit(self)
 
         gcode_dict = getattr(Application.getInstance().getController().getScene(), "gcode_dict", [])
-        active_build_plate_id = Application.getInstance().getBuildPlateModel().activeBuildPlate
+        active_build_plate_id = Application.getInstance().getMultiBuildPlateModel().activeBuildPlate
         gcode_list = gcode_dict[active_build_plate_id]
 
         if not gcode_list:

plugins/UM3NetworkPrinting/LegacyUM3OutputDevice.py

@@ -184,7 +184,7 @@ class LegacyUM3OutputDevice(NetworkedPrinterOutputDevice):
         self.writeStarted.emit(self)
 
         gcode_dict = getattr(Application.getInstance().getController().getScene(), "gcode_dict", [])
-        active_build_plate_id = Application.getInstance().getBuildPlateModel().activeBuildPlate
+        active_build_plate_id = Application.getInstance().getMultiBuildPlateModel().activeBuildPlate
         gcode_list = gcode_dict[active_build_plate_id]
 
         if not gcode_list:

plugins/USBPrinting/USBPrinterOutputDevice.py

@@ -99,7 +99,7 @@ class USBPrinterOutputDevice(PrinterOutputDevice):
         Application.getInstance().getController().setActiveStage("MonitorStage")
 
         # find the G-code for the active build plate to print
-        active_build_plate_id = Application.getInstance().getBuildPlateModel().activeBuildPlate
+        active_build_plate_id = Application.getInstance().getMultiBuildPlateModel().activeBuildPlate
         gcode_dict = getattr(Application.getInstance().getController().getScene(), "gcode_dict")
         gcode_list = gcode_dict[active_build_plate_id]
 

plugins/VersionUpgrade/VersionUpgrade30to31/VersionUpgrade30to31.py

@@ -3,14 +3,9 @@
 
 import configparser #To parse preference files.
 import io #To serialise the preference files afterwards.
-import os
-from urllib.parse import quote_plus
 
-from UM.Resources import Resources
 from UM.VersionUpgrade import VersionUpgrade #We're inheriting from this.
 
-from cura.CuraApplication import CuraApplication
-
 
 # a list of all legacy "Not Supported" quality profiles
 _OLD_NOT_SUPPORTED_PROFILES = [
@@ -130,7 +125,6 @@ class VersionUpgrade30to31(VersionUpgrade):
         parser.write(output)
         return [filename], [output.getvalue()]
 
-
     ##  Upgrades a container stack from version 3.0 to 3.1.
     #
     #   \param serialised The serialised form of a container stack.
@@ -172,71 +166,3 @@ class VersionUpgrade30to31(VersionUpgrade):
         output = io.StringIO()
         parser.write(output)
         return [filename], [output.getvalue()]
-
-    def _getSingleExtrusionMachineQualityChanges(self, quality_changes_container):
-        quality_changes_dir = Resources.getPath(CuraApplication.ResourceTypes.QualityInstanceContainer)
-        quality_changes_containers = []
-
-        for item in os.listdir(quality_changes_dir):
-            file_path = os.path.join(quality_changes_dir, item)
-            if not os.path.isfile(file_path):
-                continue
-
-            parser = configparser.ConfigParser(interpolation = None)
-            try:
-                parser.read([file_path])
-            except:
-                # skip, it is not a valid stack file
-                continue
-
-            if not parser.has_option("metadata", "type"):
-                continue
-            if "quality_changes" != parser["metadata"]["type"]:
-                continue
-
-            if not parser.has_option("general", "name"):
-                continue
-            if quality_changes_container["general"]["name"] != parser["general"]["name"]:
-                continue
-
-            quality_changes_containers.append(parser)
-
-        return quality_changes_containers
-
-    def _createExtruderQualityChangesForSingleExtrusionMachine(self, filename, global_quality_changes):
-        suffix = "_" + quote_plus(global_quality_changes["general"]["name"].lower())
-        machine_name = os.path.os.path.basename(filename).replace(".inst.cfg", "").replace(suffix, "")
-
-        # Why is this here?!
-        # When we load a .curaprofile file the deserialize will trigger a version upgrade, creating a dangling file.
-        # This file can be recognized by it's lack of a machine name in the target filename.
-        # So when we detect that situation here, we don't create the file and return.
-        if machine_name == "":
-            return
-
-        new_filename = machine_name + "_" + "fdmextruder" + suffix
-
-        extruder_quality_changes_parser = configparser.ConfigParser(interpolation = None)
-        extruder_quality_changes_parser.add_section("general")
-        extruder_quality_changes_parser["general"]["version"] = str(2)
-        extruder_quality_changes_parser["general"]["name"] = global_quality_changes["general"]["name"]
-        extruder_quality_changes_parser["general"]["definition"] = global_quality_changes["general"]["definition"]
-
-        # check renamed definition
-        if extruder_quality_changes_parser["general"]["definition"] in _RENAMED_DEFINITION_DICT:
-            extruder_quality_changes_parser["general"]["definition"] = _RENAMED_DEFINITION_DICT[extruder_quality_changes_parser["general"]["definition"]]
-
-        extruder_quality_changes_parser.add_section("metadata")
-        extruder_quality_changes_parser["metadata"]["quality_type"] = global_quality_changes["metadata"]["quality_type"]
-        extruder_quality_changes_parser["metadata"]["type"] = global_quality_changes["metadata"]["type"]
-        extruder_quality_changes_parser["metadata"]["setting_version"] = str(4)
-        extruder_quality_changes_parser["metadata"]["extruder"] = "fdmextruder"
-
-        extruder_quality_changes_output = io.StringIO()
-        extruder_quality_changes_parser.write(extruder_quality_changes_output)
-        extruder_quality_changes_filename = quote_plus(new_filename) + ".inst.cfg"
-
-        quality_changes_dir = Resources.getPath(CuraApplication.ResourceTypes.QualityInstanceContainer)
-
-        with open(os.path.join(quality_changes_dir, extruder_quality_changes_filename), "w", encoding = "utf-8") as f:
-            f.write(extruder_quality_changes_output.getvalue())

plugins/XmlMaterialProfile/XmlMaterialProfile.py

@@ -48,18 +48,35 @@ class XmlMaterialProfile(InstanceContainer):
 
     ##  Overridden from InstanceContainer
     #   set the meta data for all machine / variant combinations
-    def setMetaDataEntry(self, key, value):
+    #
+    #   The "apply_to_all" flag indicates whether this piece of metadata should be applied to all material containers
+    #   or just this specific container.
+    #   For example, when you change the material name, you want to apply it to all its derived containers, but for
+    #   some specific settings, they should only be applied to a machine/variant-specific container.
+    #
+    def setMetaDataEntry(self, key, value, apply_to_all = True):
         registry = ContainerRegistry.getInstance()
         if registry.isReadOnly(self.getId()):
             return
 
+        # Prevent recursion
+        if not apply_to_all:
             super().setMetaDataEntry(key, value)
+            return
 
-        basefile = self.getMetaDataEntry("base_file", self.getId())  #if basefile is self.getId, this is a basefile.
+        # Get the MaterialGroup
-        # Update all containers that share basefile
+        material_manager = CuraApplication.getInstance().getMaterialManager()
-        for container in registry.findInstanceContainers(base_file = basefile):
+        root_material_id = self.getMetaDataEntry("base_file")  #if basefile is self.getId, this is a basefile.
-            if container.getMetaDataEntry(key, None) != value: # Prevent recursion
+        material_group = material_manager.getMaterialGroup(root_material_id)
-                container.setMetaDataEntry(key, value)
+
+        # Update the root material container
+        root_material_container = material_group.root_material_node.getContainer()
+        root_material_container.setMetaDataEntry(key, value, apply_to_all = False)
+
+        # Update all containers derived from it
+        for node in material_group.derived_material_node_list:
+            container = node.getContainer()
+            container.setMetaDataEntry(key, value, apply_to_all = False)
 
     ##  Overridden from InstanceContainer, similar to setMetaDataEntry.
     #   without this function the setName would only set the name of the specific nozzle / material / machine combination container
@@ -190,6 +207,8 @@ class XmlMaterialProfile(InstanceContainer):
         machine_container_map = {}
         machine_nozzle_map = {}
 
+        variant_manager = CuraApplication.getInstance()._variant_manager
+
         all_containers = registry.findInstanceContainers(GUID = self.getMetaDataEntry("GUID"), base_file = self.getId())
         for container in all_containers:
             definition_id = container.getDefinition().getId()
@@ -202,9 +221,10 @@ class XmlMaterialProfile(InstanceContainer):
             if definition_id not in machine_nozzle_map:
                 machine_nozzle_map[definition_id] = {}
 
-            variant = container.getMetaDataEntry("variant")
+            variant_name = container.getMetaDataEntry("variant_name")
-            if variant:
+            if variant_name:
-                machine_nozzle_map[definition_id][variant] = container
+                machine_nozzle_map[definition_id][variant_name] = variant_manager.getVariantNode(definition_id,
+                                                                                                 variant_name)
                 continue
 
             machine_container_map[definition_id] = container
@@ -236,16 +256,12 @@ class XmlMaterialProfile(InstanceContainer):
                 self._addSettingElement(builder, instance)
 
             # Find all hotend sub-profiles corresponding to this material and machine and add them to this profile.
-            for hotend_id, hotend in machine_nozzle_map[definition_id].items():
+            for hotend_name, variant_node in machine_nozzle_map[definition_id].items():
-                variant_containers = registry.findInstanceContainersMetadata(id = hotend.getMetaDataEntry("variant"))
-                if not variant_containers:
-                    continue
-
                 # The hotend identifier is not the containers name, but its "name".
-                builder.start("hotend", {"id": variant_containers[0]["name"]})
+                builder.start("hotend", {"id": hotend_name})
 
                 # Compatible is a special case, as it's added as a meta data entry (instead of an instance).
-                compatible = hotend.getMetaDataEntry("compatible")
+                compatible = variant_node.metadata.get("compatible")
                 if compatible is not None:
                     builder.start("setting", {"key": "hardware compatible"})
                     if compatible:
@@ -254,7 +270,7 @@ class XmlMaterialProfile(InstanceContainer):
                         builder.data("no")
                     builder.end("setting")
 
-                for instance in hotend.findInstances():
+                for instance in variant_node.getContainer().findInstances():
                     if container.getInstance(instance.definition.key) and container.getProperty(instance.definition.key, "value") == instance.value:
                         # If the settings match that of the machine profile, just skip since we inherit the machine profile.
                         continue
@@ -590,14 +606,10 @@ class XmlMaterialProfile(InstanceContainer):
                         if buildplate_id is None:
                             continue
 
-                        variant_containers = ContainerRegistry.getInstance().findInstanceContainersMetadata(
+                        from cura.Machines.VariantManager import VariantType
-                            id = buildplate_id)
+                        variant_manager = CuraApplication.getInstance().getVariantManager()
-                        if not variant_containers:
+                        variant_node = variant_manager.getVariantNode(machine_id, buildplate_id)
-                            # It is not really properly defined what "ID" is so also search for variants by name.
+                        if not variant_node:
-                            variant_containers = ContainerRegistry.getInstance().findInstanceContainersMetadata(
-                                definition = machine_id, name = buildplate_id)
-
-                        if not variant_containers:
                             continue
 
                         buildplate_compatibility = machine_compatibility
@@ -618,16 +630,14 @@ class XmlMaterialProfile(InstanceContainer):
 
                     hotends = machine.iterfind("./um:hotend", self.__namespaces)
                     for hotend in hotends:
-                        hotend_id = hotend.get("id")
+                        # The "id" field for hotends in material profiles are actually
-                        if hotend_id is None:
+                        hotend_name = hotend.get("id")
+                        if hotend_name is None:
                             continue
 
-                        variant_containers = ContainerRegistry.getInstance().findInstanceContainersMetadata(id = hotend_id)
+                        variant_manager = CuraApplication.getInstance().getVariantManager()
-                        if not variant_containers:
+                        variant_node = variant_manager.getVariantNode(machine_id, hotend_name)
-                            # It is not really properly defined what "ID" is so also search for variants by name.
+                        if not variant_node:
-                            variant_containers = ContainerRegistry.getInstance().findInstanceContainersMetadata(definition = machine_id, name = hotend_id)
-
-                        if not variant_containers:
                             continue
 
                         hotend_compatibility = machine_compatibility
@@ -643,20 +653,20 @@ class XmlMaterialProfile(InstanceContainer):
                             else:
                                 Logger.log("d", "Unsupported material setting %s", key)
 
-                        new_hotend_id = self.getId() + "_" + machine_id + "_" + hotend_id.replace(" ", "_")
+                        new_hotend_specific_material_id = self.getId() + "_" + machine_id + "_" + hotend_name.replace(" ", "_")
 
                         # Same as machine compatibility, keep the derived material containers consistent with the parent material
-                        if ContainerRegistry.getInstance().isLoaded(new_hotend_id):
+                        if ContainerRegistry.getInstance().isLoaded(new_hotend_specific_material_id):
-                            new_hotend_material = ContainerRegistry.getInstance().findContainers(id = new_hotend_id)[0]
+                            new_hotend_material = ContainerRegistry.getInstance().findContainers(id = new_hotend_specific_material_id)[0]
                             is_new_material = False
                         else:
-                            new_hotend_material = XmlMaterialProfile(new_hotend_id)
+                            new_hotend_material = XmlMaterialProfile(new_hotend_specific_material_id)
                             is_new_material = True
 
                         new_hotend_material.setMetaData(copy.deepcopy(self.getMetaData()))
-                        new_hotend_material.getMetaData()["id"] = new_hotend_id
+                        new_hotend_material.getMetaData()["id"] = new_hotend_specific_material_id
                         new_hotend_material.getMetaData()["name"] = self.getName()
-                        new_hotend_material.getMetaData()["variant"] = variant_containers[0]["id"]
+                        new_hotend_material.getMetaData()["variant_name"] = hotend_name
                         new_hotend_material.setDefinition(machine_id)
                         # Don't use setMetadata, as that overrides it for all materials with same base file
                         new_hotend_material.getMetaData()["compatible"] = hotend_compatibility
@@ -833,39 +843,30 @@ class XmlMaterialProfile(InstanceContainer):
                         buildplate_map["buildplate_recommended"][buildplate_id] = buildplate_map["buildplate_recommended"]
 
                     for hotend in machine.iterfind("./um:hotend", cls.__namespaces):
-                        hotend_id = hotend.get("id")
+                        hotend_name = hotend.get("id")
-                        if hotend_id is None:
+                        if hotend_name is None:
                             continue
 
-                        variant_containers = ContainerRegistry.getInstance().findInstanceContainersMetadata(id = hotend_id)
-                        if not variant_containers:
-                            # It is not really properly defined what "ID" is so also search for variants by name.
-                            variant_containers = ContainerRegistry.getInstance().findInstanceContainersMetadata(definition = machine_id, name = hotend_id)
-
                         hotend_compatibility = machine_compatibility
                         for entry in hotend.iterfind("./um:setting", cls.__namespaces):
                             key = entry.get("key")
                             if key == "hardware compatible":
                                 hotend_compatibility = cls._parseCompatibleValue(entry.text)
 
-                        new_hotend_id = container_id + "_" + machine_id + "_" + hotend_id.replace(" ", "_")
+                        new_hotend_specific_material_id = container_id + "_" + machine_id + "_" + hotend_name.replace(" ", "_")
 
                         # Same as machine compatibility, keep the derived material containers consistent with the parent material
-                        found_materials = ContainerRegistry.getInstance().findInstanceContainersMetadata(id = new_hotend_id)
+                        found_materials = ContainerRegistry.getInstance().findInstanceContainersMetadata(id = new_hotend_specific_material_id)
                         if found_materials:
                             new_hotend_material_metadata = found_materials[0]
                         else:
                             new_hotend_material_metadata = {}
 
                         new_hotend_material_metadata.update(base_metadata)
-                        if variant_containers:
+                        new_hotend_material_metadata["variant_name"] = hotend_name
-                            new_hotend_material_metadata["variant"] = variant_containers[0]["id"]
-                        else:
-                            new_hotend_material_metadata["variant"] = hotend_id
-                            _with_missing_variants.append(new_hotend_material_metadata)
                         new_hotend_material_metadata["compatible"] = hotend_compatibility
                         new_hotend_material_metadata["machine_manufacturer"] = machine_manufacturer
-                        new_hotend_material_metadata["id"] = new_hotend_id
+                        new_hotend_material_metadata["id"] = new_hotend_specific_material_id
                         new_hotend_material_metadata["definition"] = machine_id
                         if buildplate_map["buildplate_compatible"]:
                             new_hotend_material_metadata["buildplate_compatible"] = buildplate_map["buildplate_compatible"]
@@ -992,21 +993,3 @@ def _indent(elem, level = 0):
 # before the last }
 def _tag_without_namespace(element):
     return element.tag[element.tag.rfind("}") + 1:]
-
-#While loading XML profiles, some of these profiles don't know what variant
-#they belong to. We'd like to search by the machine ID and the variant's
-#name, but we don't know the variant's ID. Not all variants have been loaded
-#yet so we can't run a filter on the name and machine. The ID is unknown
-#so we can't lazily load the variant either. So we have to wait until all
-#the rest is loaded properly and then assign the correct variant to the
-#material files that were missing it.
-_with_missing_variants = []
-def _fillMissingVariants():
-    registry = ContainerRegistry.getInstance()
-    for variant_metadata in _with_missing_variants:
-        variants = registry.findContainersMetadata(definition = variant_metadata["definition"], name = variant_metadata["variant"])
-        if not variants:
-            Logger.log("w", "Could not find variant for variant-specific material {material_id}.".format(material_id = variant_metadata["id"]))
-            continue
-        variant_metadata["variant"] = variants[0]["id"]
-ContainerRegistry.allMetadataLoaded.connect(_fillMissingVariants)

resources/definitions/anycubic_i3_mega.def.json

@@ -12,7 +12,7 @@
         "platform": "anycubic_i3_mega_platform.stl",
         "has_materials": false,
         "has_machine_quality": true,
-        "preferred_quality": "*normal*"
+        "preferred_quality_type": "normal"
     },
 
     "overrides":

resources/definitions/builder_premium_large.def.json

@@ -12,7 +12,7 @@
         "platform": "builder_premium_platform.stl",
         "platform_offset": [-126, -36, 117],
         "has_machine_quality": true,
-        "preferred_quality": "*Normal*",
+        "preferred_quality_type": "normal",
         "machine_extruder_trains":
         {
             "0": "builder_premium_large_rear",
@@ -20,8 +20,6 @@
         }
     },
 
-	
-	
     "overrides": {
         "machine_name": { "default_value": "Builder Premium Large" },
         "machine_heated_bed": { "default_value": true },

resources/definitions/builder_premium_medium.def.json

@@ -12,7 +12,7 @@
         "platform": "builder_premium_platform.stl",
         "platform_offset": [-126, -36, 117],
         "has_machine_quality": true,
-        "preferred_quality": "*Normal*",
+        "preferred_quality_type": "normal",
         "machine_extruder_trains":
         {
             "0": "builder_premium_medium_rear",
@@ -20,8 +20,6 @@
         }
     },
 
-	
-	
     "overrides": {
         "machine_name": { "default_value": "Builder Premium Medium" },
         "machine_heated_bed": { "default_value": true },

resources/definitions/builder_premium_small.def.json

@@ -11,7 +11,7 @@
         "platform": "builder_premium_platform.stl",
         "platform_offset": [-126, -36, 117],
         "has_machine_quality": true,
-        "preferred_quality": "*Normal*",
+        "preferred_quality_type": "normal",
         "machine_extruder_trains":
         {
             "0": "builder_premium_small_rear",
@@ -19,8 +19,6 @@
         }
     },
 
-	
-	
     "overrides": {
         "machine_name": { "default_value": "Builder Premium Small" },
         "machine_heated_bed": { "default_value": true },

resources/definitions/cartesio.def.json

@@ -15,9 +15,9 @@
         "has_variants": true,
 
         "variants_name": "Tool",
-        "preferred_variant": "*0.8*",
+        "preferred_variant_name": "0.8 mm",
-        "preferred_material": "*pla*",
+        "preferred_material": "generic_pla",
-        "preferred_quality": "*normal*",
+        "preferred_quality_type": "normal",
 
         "machine_extruder_trains":
         {

resources/definitions/creality_cr10.def.json

@@ -7,7 +7,7 @@
         "author": "Michael Wildermuth",
         "manufacturer": "Creality3D",
         "file_formats": "text/x-gcode",
-        "preferred_quality": "*Draft*"
+        "preferred_quality_type": "draft"
     },
     "overrides": {
         "machine_width": {

resources/definitions/fabtotum.def.json

@@ -13,8 +13,8 @@
     "has_machine_quality": true,
     "has_variants": true,
     "variants_name": "Head",
-    "preferred_variant": "*lite04*",
+    "preferred_variant_name": "Lite 0.4 mm",
-    "preferred_material": "*fabtotum_pla*",
+    "preferred_material": "fabtotum_pla",
     "supports_usb_connection": false
  },
 

resources/definitions/fdmprinter.def.json

@@ -11,8 +11,8 @@
         "file_formats": "text/x-gcode;application/x-stl-ascii;application/x-stl-binary;application/x-wavefront-obj;application/x3g",
         "visible": false,
         "has_materials": true,
-        "preferred_material": "*generic_pla*",
+        "preferred_material": "generic_pla",
-        "preferred_quality": "*normal*",
+        "preferred_quality_type": "normal",
         "machine_extruder_trains":
         {
             "0": "fdmextruder"

resources/definitions/gmax15plus.def.json

@@ -10,11 +10,10 @@
         "category": "Other",
         "file_formats": "text/x-gcode",
         "platform": "gmax_1-5_xt-plus_s3d_full model_150707.stl",
+        "has_machine_quality": true,
         "has_variants": true,
 		"variants_name": "Hotend",
-		"preferred_variant": "*0.5mm E3D (Default)*"
+		"preferred_variant_name": "0.5mm E3D (Default)"
-		
-
     },
 
     "overrides": {

resources/definitions/gmax15plus_dual.def.json

@@ -11,8 +11,9 @@
         "file_formats": "text/x-gcode",
         "platform": "gmax_1-5_xt-plus_s3d_full model_150707.stl",
 		"has_variants": true,
+        "has_machine_quality": true,
 		"variants_name": "Hotend",
-		"preferred_variant": "*0.5mm E3D (Default)*",
+		"preferred_variant_name": "0.5mm E3D (Default)",
 		"machine_extruder_trains": {
 			"0": "gmax15plus_dual_extruder_0",
 			"1": "gmax15plus_dual_extruder_1"

resources/definitions/imade3d_jellybox.def.json

@@ -9,9 +9,8 @@
         "platform": "imade3d_jellybox_platform.stl",
         "platform_offset": [ 0, -0.3, 0],
         "file_formats": "text/x-gcode",
-        "preferred_variant": "*0.4*",
+        "preferred_variant_name": "0.4 mm",
-        "preferred_material": "*generic_pla*",
+        "preferred_quality_type": "fast",
-        "preferred_quality": "*fast*",
         "has_materials": true,
         "has_variants": true,
         "has_machine_materials": true,

resources/definitions/malyan_m200.def.json

@@ -11,7 +11,7 @@
         "platform": "malyan_m200_platform.stl",
         "has_machine_quality": true,
         "has_materials": true,
-        "preferred_quality": "*normal*",
+        "preferred_quality_type": "normal",
         "supports_usb_connection": true,
         "visible": true,
         "first_start_actions": ["MachineSettingsAction"],

resources/definitions/monoprice_select_mini_v2.def.json

@@ -10,7 +10,7 @@
         "file_formats": "text/x-gcode",
         "has_machine_quality": true,
         "has_materials": true,
-        "preferred_quality": "*normal*",
+        "preferred_quality_type": "normal",
         "visible": true
    },
 

resources/definitions/tevo_blackwidow.def.json

@@ -11,7 +11,7 @@
         "has_materials": false,
         "has_machine_quality": true,
         "platform": "tevo_blackwidow.stl",
-        "preferred_quality": "*normal*"
+        "preferred_quality_type": "normal"
     },
     "overrides":
     {

resources/definitions/ultimaker2_plus.def.json

@@ -9,7 +9,7 @@
         "file_formats": "text/x-gcode",
         "platform": "ultimaker2_platform.obj",
         "platform_texture": "Ultimaker2Plusbackplate.png",
-        "preferred_variant": "*0.4*",
+        "preferred_variant_name": "0.4 mm",
         "has_variants": true,
         "has_materials": true,
         "has_machine_materials": true,

resources/definitions/ultimaker3.def.json

@@ -15,8 +15,8 @@
         "has_machine_materials": true,
         "has_variant_materials": true,
         "has_variants": true,
-        "preferred_variant": "*aa04*",
+        "preferred_variant_name": "AA 0.4",
-        "preferred_quality": "*Normal*",
+        "preferred_quality_type": "normal",
         "variants_name": "Print core",
         "machine_extruder_trains":
         {

resources/definitions/ultimaker3_extended.def.json

@@ -16,7 +16,7 @@
         "has_variant_materials": true,
         "has_materials": true,
         "has_variants": true,
-        "preferred_variant": "*aa04*",
+        "preferred_variant_name": "AA 0.4",
         "variants_name": "Print core",
         "machine_extruder_trains":
         {

resources/qml/Actions.qml

@@ -172,7 +172,7 @@ Item
     Action
     {
         id: updateProfileAction;
-        enabled: !Cura.MachineManager.stacksHaveErrors && Cura.MachineManager.hasUserSettings && !Cura.MachineManager.isReadOnly(Cura.MachineManager.activeQualityId)
+        enabled: !Cura.MachineManager.stacksHaveErrors && Cura.MachineManager.hasUserSettings && Cura.MachineManager.activeQualityChangesGroup != null
         text: catalog.i18nc("@action:inmenu menubar:profile","&Update profile with current settings/overrides");
         onTriggered: Cura.ContainerManager.updateQualityChanges();
     }

resources/qml/Cura.qml

@@ -190,24 +190,25 @@ UM.MainWindow
                     model: Cura.ExtrudersModel { simpleNames: true }
                     Menu {
                         title: model.name
-                        visible: machineExtruderCount.properties.value > 1
 
                         NozzleMenu { title: Cura.MachineManager.activeDefinitionVariantsName; visible: Cura.MachineManager.hasVariants; extruderIndex: index }
                         MaterialMenu { title: catalog.i18nc("@title:menu", "&Material"); visible: Cura.MachineManager.hasMaterials; extruderIndex: index }
-                        ProfileMenu { title: catalog.i18nc("@title:menu", "&Profile"); }
 
-                        MenuSeparator { }
+                        MenuSeparator {
+                            visible: Cura.MachineManager.hasVariants || Cura.MachineManager.hasMaterials
+                        }
 
-                        MenuItem { text: catalog.i18nc("@action:inmenu", "Set as Active Extruder"); onTriggered: Cura.ExtruderManager.setActiveExtruderIndex(model.index) }
+                        MenuItem {
+                            text: catalog.i18nc("@action:inmenu", "Set as Active Extruder")
+                            onTriggered: Cura.ExtruderManager.setActiveExtruderIndex(model.index)
+                        }
                     }
                     onObjectAdded: settingsMenu.insertItem(index, object)
                     onObjectRemoved: settingsMenu.removeItem(object)
                 }
 
                 BuildplateMenu { title: catalog.i18nc("@title:menu", "&Build plate"); visible: Cura.MachineManager.hasVariantBuildplates }
-                NozzleMenu { title: Cura.MachineManager.activeDefinitionVariantsName; visible: machineExtruderCount.properties.value <= 1 && Cura.MachineManager.hasVariants }
+                ProfileMenu { title: catalog.i18nc("@title:menu", "&Profile"); }
-                MaterialMenu { title: catalog.i18nc("@title:menu", "&Material"); visible: machineExtruderCount.properties.value <= 1 && Cura.MachineManager.hasMaterials }
-                ProfileMenu { title: catalog.i18nc("@title:menu", "&Profile"); visible: machineExtruderCount.properties.value <= 1 }
 
                 MenuSeparator { }
 

resources/qml/DiscardOrKeepProfileChangesDialog.qml

@@ -7,7 +7,7 @@ import QtQuick.Dialogs 1.2
 import QtQuick.Window 2.1
 
 import UM 1.2 as UM
-import Cura 1.1 as Cura
+import Cura 1.0 as Cura
 
 UM.Dialog
 {

resources/qml/Menus/BuildplateMenu.qml

@@ -1,8 +1,8 @@
 // Copyright (c) 2018 Ultimaker B.V.
 // Cura is released under the terms of the LGPLv3 or higher.
 
-import QtQuick 2.2
+import QtQuick 2.8
-import QtQuick.Controls 1.1
+import QtQuick.Controls 1.4
 
 import UM 1.2 as UM
 import Cura 1.0 as Cura
@@ -12,28 +12,22 @@ Menu
     id: menu
     title: "Build plate"
 
+    property Cura.BuildPlateModel buildPlateModel: CuraApplication.getBuildPlateModel()
+
     Instantiator
     {
-        id: buildplateInstantiator
+        model: menu.buildPlateModel
-        model: UM.InstanceContainersModel
+
-        {
-            filter:
-            {
-                "type": "variant",
-                "hardware_type": "buildplate",
-                "definition": Cura.MachineManager.activeDefinitionId //Only show variants of this machine
-            }
-        }
         MenuItem {
             text: model.name
             checkable: true
-            checked: model.id == Cura.MachineManager.globalVariantId
+            checked: model.name == Cura.MachineManager.globalVariantName
             exclusiveGroup: group
-            onTriggered:
+            onTriggered: {
-            {
+                Cura.MachineManager.setGlobalVariant(model.container_node);
-                Cura.MachineManager.setActiveVariantBuildplate(model.id);
             }
         }
+
         onObjectAdded: menu.insertItem(index, object)
         onObjectRemoved: menu.removeItem(object)
     }

resources/qml/Menus/ContextMenu.qml

@@ -7,7 +7,7 @@ import QtQuick.Dialogs 1.2
 import QtQuick.Window 2.1
 
 import UM 1.2 as UM
-import Cura 1.2 as Cura
+import Cura 1.0 as Cura
 
 Menu
 {
@@ -15,6 +15,8 @@ Menu
 
     property bool shouldShowExtruders: machineExtruderCount.properties.value > 1;
 
+    property Cura.MultiBuildPlateModel multiBuildPlateModel: CuraApplication.getMultiBuildPlateModel()
+
     // Selection-related actions.
     MenuItem { action: Cura.Actions.centerSelection; }
     MenuItem { action: Cura.Actions.deleteSelection; }
@@ -45,13 +47,13 @@ Menu
 
     Instantiator
     {
-        model: Cura.BuildPlateModel
+        model: base.multiBuildPlateModel
         MenuItem {
             enabled: UM.Selection.hasSelection
-            text: Cura.BuildPlateModel.getItem(index).name;
+            text: base.multiBuildPlateModel.getItem(index).name;
-            onTriggered: CuraActions.setBuildPlateForSelection(Cura.BuildPlateModel.getItem(index).buildPlateNumber);
+            onTriggered: CuraActions.setBuildPlateForSelection(base.multiBuildPlateModel.getItem(index).buildPlateNumber);
             checkable: true
-            checked: Cura.BuildPlateModel.selectionBuildPlates.indexOf(Cura.BuildPlateModel.getItem(index).buildPlateNumber) != -1;
+            checked: base.multiBuildPlateModel.selectionBuildPlates.indexOf(base.multiBuildPlateModel.getItem(index).buildPlateNumber) != -1;
             visible: UM.Preferences.getValue("cura/use_multi_build_plate")
         }
         onObjectAdded: base.insertItem(index, object);
@@ -62,7 +64,7 @@ Menu
         enabled: UM.Selection.hasSelection
         text: "New build plate";
         onTriggered: {
-            CuraActions.setBuildPlateForSelection(Cura.BuildPlateModel.maxBuildPlate + 1);
+            CuraActions.setBuildPlateForSelection(base.multiBuildPlateModel.maxBuildPlate + 1);
             checked = false;
         }
         checkable: true

resources/qml/Menus/MaterialMenu.qml

@@ -1,8 +1,8 @@
 // Copyright (c) 2018 Ultimaker B.V.
 // Cura is released under the terms of the LGPLv3 or higher.
 
-import QtQuick 2.2
+import QtQuick 2.8
-import QtQuick.Controls 1.1
+import QtQuick.Controls 1.4
 
 import UM 1.2 as UM
 import Cura 1.0 as Cura
@@ -13,64 +13,6 @@ Menu
     title: "Material"
 
     property int extruderIndex: 0
-    property bool printerConnected: Cura.MachineManager.printerOutputDevices.length != 0
-    property bool isClusterPrinter:
-    {
-        if(Cura.MachineManager.printerOutputDevices.length == 0)
-        {
-            return false;
-        }
-        var clusterSize = Cura.MachineManager.printerOutputDevices[0].clusterSize;
-        // This is not a cluster printer or the cluster it is just one printer
-        if(clusterSize == undefined || clusterSize == 1)
-        {
-            return false;
-        }
-        return true;
-    }
-
-    UM.SettingPropertyProvider
-    {
-        id: materialDiameterProvider
-
-        containerStackId: Cura.ExtruderManager.activeExtruderStackId
-        key: "material_diameter"
-        watchedProperties: [ "value" ]
-        storeIndex: 5
-    }
-
-    MenuItem
-    {
-        id: automaticMaterial
-        text:
-        {
-            if(visible)
-            {
-                var materialName = Cura.MachineManager.printerOutputDevices[0].materialNames[extruderIndex];
-                return catalog.i18nc("@title:menuitem %1 is the automatically selected material", "Automatic: %1").arg(materialName);
-            }
-            return "";
-        }
-        visible: printerConnected && Cura.MachineManager.printerOutputDevices[0].materialNames != undefined && Cura.MachineManager.printerOutputDevices[0].materialNames.length > extruderIndex && !isClusterPrinter
-        onTriggered:
-        {
-            var materialId = Cura.MachineManager.printerOutputDevices[0].materialIds[extruderIndex];
-            var items = materialsModel.items;
-            for(var i in items)
-            {
-                if (items[i]["metadata"]["GUID"] == materialId)
-                {
-                    Cura.MachineManager.setActiveMaterial(items[i].id);
-                    break;
-                }
-            }
-        }
-    }
-
-    MenuSeparator
-    {
-        visible: automaticMaterial.visible
-    }
 
     Instantiator
     {
@@ -79,16 +21,11 @@ Menu
         {
             text: model.name
             checkable: true
-            checked: model.id == Cura.MachineManager.allActiveMaterialIds[Cura.ExtruderManager.extruderIds[extruderIndex]]
+            checked: model.root_material_id == Cura.MachineManager.currentRootMaterialId[extruderIndex]
             exclusiveGroup: group
             onTriggered:
             {
-                // This workaround is done because of the application menus for materials and variants for multiextrusion printers.
+                Cura.MachineManager.setMaterial(extruderIndex, model.container_node);
-                // The extruder menu would always act on the correspoding extruder only, instead of acting on the extruder selected in the UI.
-                var activeExtruderIndex = Cura.ExtruderManager.activeExtruderIndex;
-                Cura.ExtruderManager.setActiveExtruderIndex(extruderIndex);
-                Cura.MachineManager.setActiveMaterial(model.id);
-                Cura.ExtruderManager.setActiveExtruderIndex(activeExtruderIndex);
             }
         }
         onObjectAdded: menu.insertItem(index, object)
@@ -126,12 +63,8 @@ Menu
                             exclusiveGroup: group
                             onTriggered:
                             {
-                                // This workaround is done because of the application menus for materials and variants for multiextrusion printers.
-                                // The extruder menu would always act on the correspoding extruder only, instead of acting on the extruder selected in the UI.
                                 var activeExtruderIndex = Cura.ExtruderManager.activeExtruderIndex;
-                                Cura.ExtruderManager.setActiveExtruderIndex(extruderIndex);
+                                Cura.MachineManager.setMaterial(activeExtruderIndex, model.container_node);
-                                Cura.MachineManager.setActiveMaterial(model.id);
-                                Cura.ExtruderManager.setActiveExtruderIndex(activeExtruderIndex);
                             }
                         }
                         onObjectAdded: brandMaterialsMenu.insertItem(index, object)
@@ -146,24 +79,16 @@ Menu
         onObjectRemoved: menu.removeItem(object)
     }
 
-    ListModel
+    Cura.GenericMaterialsModel
     {
         id: genericMaterialsModel
-        Component.onCompleted: populateMenuModels()
+        extruderPosition: menu.extruderIndex
     }
 
-    ListModel
+    Cura.BrandMaterialsModel
     {
         id: brandModel
-    }
+        extruderPosition: menu.extruderIndex
-
-    //: Model used to populate the brandModel
-    Cura.MaterialsModel
-    {
-        id: materialsModel
-        filter: materialFilter()
-        onModelReset: populateMenuModels()
-        onDataChanged: populateMenuModels()
     }
 
     ExclusiveGroup { id: group }
@@ -171,80 +96,4 @@ Menu
     MenuSeparator { }
 
     MenuItem { action: Cura.Actions.manageMaterials }
-
-    function materialFilter()
-    {
-        var result = { "type": "material", "approximate_diameter": Math.round(materialDiameterProvider.properties.value).toString() };
-        if(Cura.MachineManager.filterMaterialsByMachine)
-        {
-            result.definition = Cura.MachineManager.activeQualityDefinitionId;
-            if(Cura.MachineManager.hasVariants)
-            {
-                result.variant = Cura.MachineManager.activeQualityVariantId;
-            }
-        }
-        else
-        {
-            result.definition = "fdmprinter";
-            result.compatible = true; //NB: Only checks for compatibility in global version of material, but we don't have machine-specific materials anyway.
-        }
-        return result;
-    }
-
-    function populateMenuModels()
-    {
-        // Create a structure of unique brands and their material-types
-        genericMaterialsModel.clear()
-        brandModel.clear();
-
-        var items = materialsModel.items;
-        var materialsByBrand = {};
-        for (var i in items) {
-            var brandName = items[i]["metadata"]["brand"];
-            var materialName = items[i]["metadata"]["material"];
-
-            if (brandName == "Generic")
-            {
-                // Add to top section
-                var materialId = items[i].id;
-                genericMaterialsModel.append({
-                    id: materialId,
-                    name: items[i].name
-                });
-            }
-            else
-            {
-                // Add to per-brand, per-material menu
-                if (!materialsByBrand.hasOwnProperty(brandName))
-                {
-                    materialsByBrand[brandName] = {};
-                }
-                if (!materialsByBrand[brandName].hasOwnProperty(materialName))
-                {
-                    materialsByBrand[brandName][materialName] = [];
-                }
-                materialsByBrand[brandName][materialName].push({
-                    id: items[i].id,
-                    name: items[i].name
-                });
-            }
-        }
-
-        for (var brand in materialsByBrand)
-        {
-            var materialsByBrandModel = [];
-            var materials = materialsByBrand[brand];
-            for (var material in materials)
-            {
-                materialsByBrandModel.push({
-                    name: material,
-                    colors: materials[material]
-                })
-            }
-            brandModel.append({
-                name: brand,
-                materials: materialsByBrandModel
-            });
-        }
-    }
 }

resources/qml/Menus/NozzleMenu.qml

@@ -1,8 +1,8 @@
 // Copyright (c) 2017 Ultimaker B.V.
 // Cura is released under the terms of the LGPLv3 or higher.
 
-import QtQuick 2.2
+import QtQuick 2.8
-import QtQuick.Controls 1.1
+import QtQuick.Controls 1.4
 
 import UM 1.2 as UM
 import Cura 1.0 as Cura
@@ -13,89 +13,31 @@ Menu
     title: "Nozzle"
 
     property int extruderIndex: 0
-    property bool printerConnected: Cura.MachineManager.printerOutputDevices.length != 0
-    property bool isClusterPrinter:
-    {
-        if(Cura.MachineManager.printerOutputDevices.length == 0)
-        {
-            return false;
-        }
-        var clusterSize = Cura.MachineManager.printerOutputDevices[0].clusterSize;
-        // This is not a cluster printer or the cluster it is just one printer
-        if(clusterSize == undefined || clusterSize == 1)
-        {
-            return false;
-        }
-        return true;
-    }
 
-    MenuItem
+    Cura.NozzleModel
     {
-        id: automaticNozzle
+        id: nozzleModel
-        text:
-        {
-            if(visible)
-            {
-                var nozzleName = Cura.MachineManager.printerOutputDevices[0].hotendIds[extruderIndex];
-                return catalog.i18nc("@title:menuitem %1 is the nozzle currently loaded in the printer", "Automatic: %1").arg(nozzleName);
-            }
-            return "";
-        }
-        visible: printerConnected && Cura.MachineManager.printerOutputDevices[0].hotendIds != undefined && Cura.MachineManager.printerOutputDevices[0].hotendIds.length > extruderIndex && !isClusterPrinter
-        onTriggered:
-        {
-            var activeExtruderIndex = Cura.ExtruderManager.activeExtruderIndex;
-            Cura.ExtruderManager.setActiveExtruderIndex(extruderIndex);
-            var hotendId = Cura.MachineManager.printerOutputDevices[0].hotendIds[extruderIndex];
-            var itemIndex = nozzleInstantiator.model.find("name", hotendId);
-            if(itemIndex > -1)
-            {
-                Cura.MachineManager.setActiveVariant(nozzleInstantiator.model.getItem(itemIndex).id);
-            }
-            Cura.ExtruderManager.setActiveExtruderIndex(activeExtruderIndex);
-        }
-    }
-
-    MenuSeparator
-    {
-        visible: automaticNozzle.visible
     }
 
     Instantiator
     {
-        id: nozzleInstantiator
+        model: nozzleModel
-        model: UM.InstanceContainersModel
+
+        MenuItem
         {
-            filter:
+            text: model.hotend_name
-            {
+            checkable: true
-                var filter_dict =
+            checked: {
-                {
+                return Cura.MachineManager.activeVariantNames[extruderIndex] == model.hotend_name
-                    "type": "variant",
+            }
-                    "definition": Cura.MachineManager.activeQualityDefinitionId //Only show variants of this machine
+            exclusiveGroup: group
+            onTriggered: {
+                Cura.MachineManager.setVariantGroup(menu.extruderIndex, model.container_node);
             }
-                if (Cura.MachineManager.hasVariantBuildplates)
-                {
-                    filter_dict["hardware_type"] = "nozzle"
         }
 
-                return filter_dict
+        onObjectAdded: menu.insertItem(index, object);
-            }
+        onObjectRemoved: menu.removeItem(object);
-        }
-        MenuItem {
-            text: model.name
-            checkable: true
-            checked: model.id == Cura.MachineManager.allActiveVariantIds[Cura.ExtruderManager.extruderIds[extruderIndex]]
-            exclusiveGroup: group
-            onTriggered:
-            {
-                var activeExtruderIndex = Cura.ExtruderManager.activeExtruderIndex;
-                Cura.ExtruderManager.setActiveExtruderIndex(extruderIndex);
-                Cura.MachineManager.setActiveVariant(model.id);
-                Cura.ExtruderManager.setActiveExtruderIndex(activeExtruderIndex);
-            }
-        }
-        onObjectAdded: menu.insertItem(index, object)
-        onObjectRemoved: menu.removeItem(object)
     }
 
     ExclusiveGroup { id: group }

resources/qml/Menus/ProfileMenu.qml

@@ -1,8 +1,8 @@
-// Copyright (c) 2016 Ultimaker B.V.
+// Copyright (c) 2018 Ultimaker B.V.
 // Cura is released under the terms of the LGPLv3 or higher.
 
-import QtQuick 2.2
+import QtQuick 2.8
-import QtQuick.Controls 1.1
+import QtQuick.Controls 1.4
 
 import UM 1.2 as UM
 import Cura 1.0 as Cura
@@ -13,15 +13,17 @@ Menu
 
     Instantiator
     {
-        model: Cura.ProfilesModel 
+        model: Cura.QualityProfilesDropDownMenuModel
 
         MenuItem
         {
-            text: (model.layer_height != "") ? model.name + " - " + model.layer_height : model.name
+            text: (model.layer_height != "") ? model.name + " - " + model.layer_height + model.layer_height_unit : model.name
             checkable: true
-            checked: Cura.MachineManager.activeQualityId == model.id
+            checked: Cura.MachineManager.activeQualityOrQualityChangesName == model.name
             exclusiveGroup: group
-            onTriggered: Cura.MachineManager.setActiveQuality(model.id)
+            onTriggered: {
+                Cura.MachineManager.setQualityGroup(model.quality_group)
+            }
             visible: model.available
         }
 
@@ -32,24 +34,27 @@ Menu
     MenuSeparator
     {
         id: customSeparator
-        visible: Cura.UserProfilesModel.rowCount > 0
+        visible: Cura.CustomQualityProfilesDropDownMenuModel.rowCount > 0
     }
 
     Instantiator
     {
         id: customProfileInstantiator
-        model: Cura.UserProfilesModel
+        model: Cura.CustomQualityProfilesDropDownMenuModel
+
+        Connections
         {
-            onModelReset: customSeparator.visible = rowCount() > 0
+            target: Cura.CustomQualityProfilesDropDownMenuModel
+            onModelReset: customSeparator.visible = Cura.CustomQualityProfilesDropDownMenuModel.rowCount() > 0
         }
 
         MenuItem
         {
             text: model.name
-            checkable: true
+            checkable: model.available
-            checked: Cura.MachineManager.activeQualityChangesId == model.id
+            checked: Cura.MachineManager.activeQualityOrQualityChangesName == model.name
             exclusiveGroup: group
-            onTriggered: Cura.MachineManager.setActiveQuality(model.id)
+            onTriggered: Cura.MachineManager.setQualityChangesGroup(model.quality_changes_group)
         }
 
         onObjectAdded:
@@ -73,23 +78,4 @@ Menu
     MenuItem { action: Cura.Actions.resetProfile }
     MenuSeparator { }
     MenuItem { action: Cura.Actions.manageProfiles }
-
-    function getFilter(initial_conditions)
-    {
-        var result = initial_conditions;
-
-        if(Cura.MachineManager.filterQualityByMachine)
-        {
-            result.definition = Cura.MachineManager.activeQualityDefinitionId;
-            if(Cura.MachineManager.hasMaterials)
-            {
-                result.material = Cura.MachineManager.activeQualityMaterialId;
-            }
-        }
-        else
-        {
-            result.definition = "fdmprinter"
-        }
-        return result
-    }
 }

resources/qml/Menus/ViewMenu.qml

@@ -5,7 +5,7 @@ import QtQuick 2.2
 import QtQuick.Controls 1.1
 
 import UM 1.2 as UM
-import Cura 1.2 as Cura
+import Cura 1.0 as Cura
 
 Menu
 {
@@ -13,6 +13,8 @@ Menu
     id: base
     enabled: !PrintInformation.preSliced
 
+    property Cura.MultiBuildPlateModel multiBuildPlateModel: CuraApplication.getMultiBuildPlateModel()
+
     // main views
     Instantiator
     {
@@ -53,12 +55,12 @@ Menu
         visible: UM.Preferences.getValue("cura/use_multi_build_plate")
         Instantiator
         {
-            model: Cura.BuildPlateModel
+            model: base.multiBuildPlateModel
             MenuItem {
-                text: Cura.BuildPlateModel.getItem(index).name;
+                text: base.multiBuildPlateModel.getItem(index).name;
-                onTriggered: Cura.SceneController.setActiveBuildPlate(Cura.BuildPlateModel.getItem(index).buildPlateNumber);
+                onTriggered: Cura.SceneController.setActiveBuildPlate(base.multiBuildPlateModel.getItem(index).buildPlateNumber);
                 checkable: true;
-                checked: Cura.BuildPlateModel.getItem(index).buildPlateNumber == Cura.BuildPlateModel.activeBuildPlate;
+                checked: base.multiBuildPlateModel.getItem(index).buildPlateNumber == base.multiBuildPlateModel.activeBuildPlate;
                 exclusiveGroup: buildPlateGroup;
                 visible: UM.Preferences.getValue("cura/use_multi_build_plate")
             }

resources/qml/ObjectsList.qml

@@ -8,7 +8,7 @@ import QtQuick.Layouts 1.1
 import QtQuick.Dialogs 1.1
 
 import UM 1.3 as UM
-import Cura 1.2 as Cura
+import Cura 1.0 as Cura
 
 import "Menus"
 
@@ -33,6 +33,8 @@ Rectangle
 
     property bool collapsed: true;
 
+    property Cura.MultiBuildPlateModel multiBuildPlateModel: CuraApplication.getMultiBuildPlateModel()
+
     SystemPalette { id: palette }
 
     Button {
@@ -67,7 +69,7 @@ Rectangle
         Rectangle
             {
                 height: childrenRect.height
-                color: Cura.BuildPlateModel.getItem(index).buildPlateNumber == Cura.BuildPlateModel.activeBuildPlate ? palette.highlight : index % 2 ? palette.base : palette.alternateBase
+                color: multiBuildPlateModel.getItem(index).buildPlateNumber == multiBuildPlateModel.activeBuildPlate ? palette.highlight : index % 2 ? palette.base : palette.alternateBase
                 width: parent.width
                 Label
                 {
@@ -75,8 +77,8 @@ Rectangle
                     anchors.left: parent.left
                     anchors.leftMargin: UM.Theme.getSize("default_margin").width
                     width: parent.width - 2 * UM.Theme.getSize("default_margin").width - 30
-                    text: Cura.BuildPlateModel.getItem(index) ? Cura.BuildPlateModel.getItem(index).name : "";
+                    text: multiBuildPlateModel.getItem(index) ? multiBuildPlateModel.getItem(index).name : "";
-                    color: Cura.BuildPlateModel.activeBuildPlate == index ? palette.highlightedText : palette.text
+                    color: multiBuildPlateModel.activeBuildPlate == index ? palette.highlightedText : palette.text
                     elide: Text.ElideRight
                 }
 
@@ -118,13 +120,12 @@ Rectangle
         ListView
         {
             id: buildPlateListView
-            model: Cura.BuildPlateModel
+            model: multiBuildPlateModel
             width: parent.width
             delegate: buildPlateDelegate
         }
     }
 
-
     Component {
         id: objectDelegate
         Rectangle
@@ -200,7 +201,6 @@ Rectangle
         }
     }
 
-
     CheckBox
     {
         id: filterBuildPlateCheckbox
@@ -260,6 +260,4 @@ Rectangle
         }
         action: Cura.Actions.arrangeAll;
     }
-
-
 }

resources/qml/Preferences/MachinesPage.qml

@@ -1,13 +1,14 @@
 // Copyright (c) 2016 Ultimaker B.V.
 // Cura is released under the terms of the LGPLv3 or higher.
 
-import QtQuick 2.1
+import QtQuick 2.8
-import QtQuick.Controls 1.1
+import QtQuick.Controls 1.4
 import QtQuick.Window 2.1
 
 import UM 1.2 as UM
 import Cura 1.0 as Cura
 
+
 UM.ManagementPage
 {
     id: base;

resources/qml/Preferences/MaterialView.qml

@@ -1,8 +1,8 @@
 // Copyright (c) 2017 Ultimaker B.V.
 // Cura is released under the terms of the LGPLv3 or higher.
 
-import QtQuick 2.1
+import QtQuick 2.8
-import QtQuick.Controls 1.3
+import QtQuick.Controls 1.4
 import QtQuick.Dialogs 1.2
 
 import UM 1.2 as UM
@@ -12,7 +12,10 @@ TabView
 {
     id: base
 
-    property QtObject properties;
+    property QtObject materialManager: CuraApplication.getMaterialManager()
+
+    property QtObject properties
+    property var currentMaterialNode: null
 
     property bool editingEnabled: false;
     property string currency: UM.Preferences.getValue("cura/currency") ? UM.Preferences.getValue("cura/currency") : "€"
@@ -27,18 +30,23 @@ TabView
     property bool reevaluateLinkedMaterials: false
     property string linkedMaterialNames:
     {
-        if (reevaluateLinkedMaterials)
+        if (reevaluateLinkedMaterials) {
-        {
             reevaluateLinkedMaterials = false;
         }
-        if(!base.containerId || !base.editingEnabled)
+        if (!base.containerId || !base.editingEnabled) {
-        {
+            return ""
+        }
+        var linkedMaterials = Cura.ContainerManager.getLinkedMaterials(base.currentMaterialNode);
+        if (linkedMaterials.length <= 1) {
             return ""
         }
-        var linkedMaterials = Cura.ContainerManager.getLinkedMaterials(base.containerId);
         return linkedMaterials.join(", ");
     }
 
+    function getApproximateDiameter(diameter) {
+        return Math.round(diameter);
+    }
+
     Tab
     {
         title: catalog.i18nc("@title", "Information")
@@ -65,6 +73,34 @@ TabView
                 width: base.width
                 property real rowHeight: textField.height + UM.Theme.getSize("default_lining").height
 
+                MessageDialog
+                {
+                    id: confirmDiameterChangeDialog
+
+                    icon: StandardIcon.Question;
+                    title: catalog.i18nc("@title:window", "Confirm Diameter Change")
+                    text: catalog.i18nc("@label (%1 is object name)", "The new material diameter is set to %1 mm, which is not compatible to the current machine. Do you wish to continue?".arg(new_diameter_value))
+                    standardButtons: StandardButton.Yes | StandardButton.No
+                    modality: Qt.ApplicationModal
+
+                    property var new_diameter_value: null;
+                    property var old_diameter_value: null;
+                    property var old_approximate_diameter_value: null;
+
+                    onYes:
+                    {
+                        Cura.ContainerManager.setContainerProperty(base.containerId, "material_diameter", "value", new_diameter_value);
+                        base.setMetaDataEntry("approximate_diameter", old_approximate_diameter_value, getApproximateDiameter(new_diameter_value).toString());
+                        base.setMetaDataEntry("properties/diameter", properties.diameter, new_diameter_value);
+                    }
+
+                    onNo:
+                    {
+                        properties.diameter = old_diameter_value;
+                        diameterSpinBox.value = properties.diameter;
+                    }
+                }
+
                 Label { width: scrollView.columnWidth; height: parent.rowHeight; verticalAlignment: Qt.AlignVCenter; text: catalog.i18nc("@label", "Display Name") }
                 ReadOnlyTextField
                 {
@@ -80,18 +116,18 @@ TabView
                 {
                     id: textField;
                     width: scrollView.columnWidth;
-                    text: properties.supplier;
+                    text: properties.brand;
                     readOnly: !base.editingEnabled;
-                    onEditingFinished: base.updateMaterialSupplier(properties.supplier, text)
+                    onEditingFinished: base.updateMaterialBrand(properties.brand, text)
                 }
 
                 Label { width: scrollView.columnWidth; height: parent.rowHeight; verticalAlignment: Qt.AlignVCenter; text: catalog.i18nc("@label", "Material Type") }
                 ReadOnlyTextField
                 {
                     width: scrollView.columnWidth;
-                    text: properties.material_type;
+                    text: properties.material;
                     readOnly: !base.editingEnabled;
-                    onEditingFinished: base.updateMaterialType(properties.material_type, text)
+                    onEditingFinished: base.updateMaterialType(properties.material, text)
                 }
 
                 Label { width: scrollView.columnWidth; height: parent.rowHeight; verticalAlignment: Qt.AlignVCenter; text: catalog.i18nc("@label", "Color") }
@@ -172,14 +208,20 @@ TabView
                         // which derive from the same base_file
                         var old_diameter = Cura.ContainerManager.getContainerProperty(base.containerId, "material_diameter", "value").toString();
                         var old_approximate_diameter = Cura.ContainerManager.getContainerMetaDataEntry(base.containerId, "approximate_diameter");
-                        base.setMetaDataEntry("approximate_diameter", old_approximate_diameter, Math.round(value).toString());
+                        var new_approximate_diameter = getApproximateDiameter(value);
-                        base.setMetaDataEntry("properties/diameter", properties.diameter, value);
+                        if (Cura.MachineManager.filterMaterialsByMachine && new_approximate_diameter != Cura.ExtruderManager.getActiveExtruderStack().approximateMaterialDiameter)
-                        var new_approximate_diameter = Cura.ContainerManager.getContainerMetaDataEntry(base.containerId, "approximate_diameter");
-                        if (Cura.MachineManager.filterMaterialsByMachine && new_approximate_diameter != Cura.MachineManager.activeMachine.approximateMaterialDiameter)
                         {
-                            Cura.MaterialManager.showMaterialWarningMessage(base.containerId, old_diameter);
+                            confirmDiameterChangeDialog.old_diameter_value = old_diameter;
+                            confirmDiameterChangeDialog.new_diameter_value = value;
+                            confirmDiameterChangeDialog.old_approximate_diameter_value = old_approximate_diameter;
+
+                            confirmDiameterChangeDialog.open()
                         }
+                        else {
                             Cura.ContainerManager.setContainerProperty(base.containerId, "material_diameter", "value", value);
+                            base.setMetaDataEntry("approximate_diameter", old_approximate_diameter, getApproximateDiameter(value).toString());
+                            base.setMetaDataEntry("properties/diameter", properties.diameter, value);
+                        }
                     }
                     onValueChanged: updateCostPerMeter()
                 }
@@ -251,7 +293,7 @@ TabView
                     visible: base.linkedMaterialNames != ""
                     onClicked:
                     {
-                        Cura.ContainerManager.unlinkMaterial(base.containerId)
+                        Cura.ContainerManager.unlinkMaterial(base.currentMaterialNode)
                         base.reevaluateLinkedMaterials = true
                     }
                 }
@@ -357,8 +399,20 @@ TabView
                         onEditingFinished: materialPropertyProvider.setPropertyValue("value", value)
                     }
 
-                    UM.ContainerPropertyProvider { id: materialPropertyProvider; containerId: base.containerId; watchedProperties: [ "value" ]; key: model.key }
+                    UM.ContainerPropertyProvider
-                    UM.ContainerPropertyProvider { id: machinePropertyProvider; containerId: Cura.MachineManager.activeDefinitionId; watchedProperties: [ "value" ]; key: model.key }
+                    {
+                        id: materialPropertyProvider
+                        containerId: base.containerId
+                        watchedProperties: [ "value" ]
+                        key: model.key
+                    }
+                    UM.ContainerPropertyProvider
+                    {
+                        id: machinePropertyProvider
+                        containerId: Cura.MachineManager.activeDefinitionId
+                        watchedProperties: [ "value" ]
+                        key: model.key
+                    }
                 }
             }
         }
@@ -405,7 +459,7 @@ TabView
     // Tiny convenience function to check if a value really changed before trying to set it.
     function setMetaDataEntry(entry_name, old_value, new_value) {
         if (old_value != new_value) {
-            Cura.ContainerManager.setContainerMetaDataEntry(base.containerId, entry_name, new_value)
+            Cura.ContainerManager.setContainerMetaDataEntry(base.currentMaterialNode, entry_name, new_value)
             // make sure the UI properties are updated as well since we don't re-fetch the entire model here
             // When the entry_name is something like properties/diameter, we take the last part of the entry_name
             var list = entry_name.split("/")
@@ -442,26 +496,25 @@ TabView
 
     // update the display name of the material
     function updateMaterialDisplayName (old_name, new_name) {
-
         // don't change when new name is the same
         if (old_name == new_name) {
             return
         }
 
         // update the values
-        Cura.ContainerManager.setContainerName(base.containerId, new_name)
+        base.materialManager.setMaterialName(base.currentMaterialNode, new_name)
         materialProperties.name = new_name
     }
 
     // update the type of the material
     function updateMaterialType (old_type, new_type) {
         base.setMetaDataEntry("material", old_type, new_type)
-        materialProperties.material_type = new_type
+        materialProperties.material= new_type
     }
 
-    // update the supplier of the material
+    // update the brand of the material
-    function updateMaterialSupplier (old_supplier, new_supplier) {
+    function updateMaterialBrand (old_brand, new_brand) {
-        base.setMetaDataEntry("brand", old_supplier, new_supplier)
+        base.setMetaDataEntry("brand", old_brand, new_brand)
-        materialProperties.supplier = new_supplier
+        materialProperties.brand = new_brand
     }
 }

resources/qml/Preferences/MaterialsPage.qml

@@ -1,116 +1,303 @@
-//Copyright (c) 2017 Ultimaker B.V.
+// Copyright (c) 2018 Ultimaker B.V.
-//Cura is released under the terms of the LGPLv3 or higher.
+// Uranium is released under the terms of the LGPLv3 or higher.
 
-import QtQuick 2.1
+import QtQuick 2.8
-import QtQuick.Controls 1.1
+import QtQuick.Controls 1.4
+import QtQuick.Layouts 1.3
 import QtQuick.Dialogs 1.2
 
 import UM 1.2 as UM
 import Cura 1.0 as Cura
 
-UM.ManagementPage
-{
-    id: base;
 
-    title: catalog.i18nc("@title:tab", "Materials");
+Item
-
-    Component.onCompleted:
 {
-        // Workaround to make sure all of the items are visible
+    id: base
-        objectList.positionViewAtBeginning();
+
+    property QtObject materialManager: CuraApplication.getMaterialManager()
+    property var resetEnabled: false  // Keep PreferencesDialog happy
+
+    UM.I18nCatalog { id: catalog; name: "cura"; }
+
+    Cura.MaterialManagementModel {
+        id: materialsModel
     }
 
-    model: Cura.MaterialsModel
+    Label {
-    {
+        id: titleLabel
-        filter:
+
-        {
+        anchors {
-            var result = { "type": "material", "approximate_diameter": Math.round(materialDiameterProvider.properties.value).toString() }
+            top: parent.top
-            if(Cura.MachineManager.filterMaterialsByMachine)
+            left: parent.left
-            {
+            right: parent.right
-                result.definition = Cura.MachineManager.activeQualityDefinitionId;
+            margins: 5 * screenScaleFactor
-                if(Cura.MachineManager.hasVariants)
-                {
-                    result.variant = Cura.MachineManager.activeQualityVariantId;
-                }
-            }
-            else
-            {
-                result.definition = "fdmprinter";
-                result.compatible = true; //NB: Only checks for compatibility in global version of material, but we don't have machine-specific materials anyway.
-            }
-            return result
         }
 
-        sectionProperty: "brand"
+        font.pointSize: 18
+        text: catalog.i18nc("@title:tab", "Materials")
     }
 
-    delegate: Rectangle
+    property var hasCurrentItem: materialListView.currentItem != null
-    {
-        width: objectList.width;
-        height: childrenRect.height;
-        color: isCurrentItem ? palette.highlight : index % 2 ? palette.base : palette.alternateBase
-        property bool isCurrentItem: ListView.isCurrentItem
 
-        Row
+    property var currentItem:
-        {
+    {  // is soon to be overwritten
-            spacing: (UM.Theme.getSize("default_margin").width / 2) | 0
+        var current_index = materialListView.currentIndex;
-            anchors.left: parent.left
+        return materialsModel.getItem(current_index);
-            anchors.leftMargin: UM.Theme.getSize("default_margin").width
-            anchors.right: parent.right
-            Rectangle
-            {
-                width: Math.round(parent.height * 0.8)
-                height: Math.round(parent.height * 0.8)
-                color: model.metadata.color_code
-                border.color: isCurrentItem ? palette.highlightedText : palette.text;
-                anchors.verticalCenter: parent.verticalCenter
     }
-            Label
+
+    property var isCurrentItemActivated:
     {
-                width: Math.round((parent.width * 0.3))
+        const extruder_position = Cura.ExtruderManager.activeExtruderIndex;
-                text: model.metadata.material
+        const root_material_id = Cura.MachineManager.currentRootMaterialId[extruder_position];
-                elide: Text.ElideRight
+        return base.currentItem.root_material_id == root_material_id;
-                font.italic: model.id == activeId
-                color: isCurrentItem ? palette.highlightedText : palette.text;
     }
-            Label
+
+    Row  // Button Row
     {
-                text: (model.name != model.metadata.material) ? model.name : ""
+        id: buttonRow
-                elide: Text.ElideRight
+        anchors
-                font.italic: model.id == activeId
+        {
-                color: isCurrentItem ? palette.highlightedText : palette.text;
+            left: parent.left
+            right: parent.right
+            top: titleLabel.bottom
+        }
+        height: childrenRect.height
+
+        // Activate button
+        Button
+        {
+            text: catalog.i18nc("@action:button", "Activate")
+            iconName: "list-activate"
+            enabled: !isCurrentItemActivated
+            onClicked:
+            {
+                forceActiveFocus()
+
+                const extruder_position = Cura.ExtruderManager.activeExtruderIndex;
+                Cura.MachineManager.setMaterial(extruder_position, base.currentItem.container_node);
             }
         }
 
-        MouseArea
+        // Create button
+        Button
         {
-            anchors.fill: parent;
+            text: catalog.i18nc("@action:button", "Create")
+            iconName: "list-add"
             onClicked:
             {
                 forceActiveFocus();
-                if(!parent.ListView.isCurrentItem)
+                base.newRootMaterialIdToSwitchTo = base.materialManager.createMaterial();
-                {
+                base.toActivateNewMaterial = true;
-                    parent.ListView.view.currentIndex = index;
-                    base.itemActivated();
-                }
-            }
             }
         }
 
-    activeId: Cura.MachineManager.activeMaterialId
+        // Duplicate button
-    activeIndex: getIndexById(activeId)
+        Button
-    function getIndexById(material_id)
         {
-        for(var i = 0; i < model.rowCount(); i++) {
+            text: catalog.i18nc("@action:button", "Duplicate");
-            if (model.getItem(i).id == material_id) {
+            iconName: "list-add"
-                return i;
+            enabled: base.hasCurrentItem
+            onClicked:
+            {
+                forceActiveFocus();
+                base.newRootMaterialIdToSwitchTo = base.materialManager.duplicateMaterial(base.currentItem.container_node);
+                base.toActivateNewMaterial = true;
             }
         }
-        return -1;
-    }
 
-    scrollviewCaption:
+        // Remove button
+        Button
         {
+            text: catalog.i18nc("@action:button", "Remove")
+            iconName: "list-remove"
+            enabled: base.hasCurrentItem && !base.currentItem.is_read_only && !base.isCurrentItemActivated
+            onClicked:
+            {
+                forceActiveFocus();
+                confirmRemoveMaterialDialog.open();
+            }
+        }
+
+        // Import button
+        Button
+        {
+            text: catalog.i18nc("@action:button", "Import")
+            iconName: "document-import"
+            onClicked:
+            {
+                forceActiveFocus();
+                importMaterialDialog.open();
+            }
+            visible: true
+        }
+
+        // Export button
+        Button
+        {
+            text: catalog.i18nc("@action:button", "Export")
+            iconName: "document-export"
+            onClicked:
+            {
+                forceActiveFocus();
+                exportMaterialDialog.open();
+            }
+            enabled: currentItem != null
+        }
+    }
+
+    property string newRootMaterialIdToSwitchTo: ""
+    property bool toActivateNewMaterial: false
+
+    // This connection makes sure that we will switch to the new
+    Connections
+    {
+        target: materialsModel
+        onItemsChanged: {
+            var currentItemId = base.currentItem == null ? "" : base.currentItem.root_material_id;
+            var position = Cura.ExtruderManager.activeExtruderIndex;
+
+            // try to pick the currently selected item; it may have been moved
+            if (base.newRootMaterialIdToSwitchTo == "") {
+                base.newRootMaterialIdToSwitchTo = currentItemId;
+            }
+
+            for (var idx = 0; idx < materialsModel.rowCount(); ++idx) {
+                var item = materialsModel.getItem(idx);
+                if (item.root_material_id == base.newRootMaterialIdToSwitchTo) {
+                    // Switch to the newly created profile if needed
+                    materialListView.currentIndex = idx;
+                    materialListView.activateDetailsWithIndex(materialListView.currentIndex);
+                    if (base.toActivateNewMaterial) {
+                        Cura.MachineManager.setMaterial(position, item.container_node);
+                    }
+                    base.newRootMaterialIdToSwitchTo = "";
+                    base.toActivateNewMaterial = false;
+                    return
+                }
+            }
+
+            materialListView.currentIndex = 0;
+            materialListView.activateDetailsWithIndex(materialListView.currentIndex);
+            if (base.toActivateNewMaterial) {
+                Cura.MachineManager.setMaterial(position, materialsModel.getItem(0).container_node);
+            }
+            base.newRootMaterialIdToSwitchTo = "";
+            base.toActivateNewMaterial = false;
+        }
+    }
+
+    MessageDialog
+    {
+        id: confirmRemoveMaterialDialog
+
+        icon: StandardIcon.Question;
+        title: catalog.i18nc("@title:window", "Confirm Remove")
+        text: catalog.i18nc("@label (%1 is object name)", "Are you sure you wish to remove %1? This cannot be undone!").arg(base.currentItem.name)
+        standardButtons: StandardButton.Yes | StandardButton.No
+        modality: Qt.ApplicationModal
+
+        onYes:
+        {
+            base.materialManager.removeMaterial(base.currentItem.container_node);
+        }
+    }
+
+    FileDialog
+    {
+        id: importMaterialDialog
+        title: catalog.i18nc("@title:window", "Import Material")
+        selectExisting: true
+        nameFilters: Cura.ContainerManager.getContainerNameFilters("material")
+        folder: CuraApplication.getDefaultPath("dialog_material_path")
+        onAccepted:
+        {
+            var result = Cura.ContainerManager.importMaterialContainer(fileUrl);
+
+            messageDialog.title = catalog.i18nc("@title:window", "Import Material");
+            messageDialog.text = catalog.i18nc("@info:status Don't translate the XML tags <filename> or <message>!", "Could not import material <filename>%1</filename>: <message>%2</message>").arg(fileUrl).arg(result.message);
+            if (result.status == "success") {
+                messageDialog.icon = StandardIcon.Information;
+                messageDialog.text = catalog.i18nc("@info:status Don't translate the XML tag <filename>!", "Successfully imported material <filename>%1</filename>").arg(fileUrl);
+            }
+            else if (result.status == "duplicate") {
+                messageDialog.icon = StandardIcon.Warning;
+            }
+            else {
+                messageDialog.icon = StandardIcon.Critical;
+            }
+            messageDialog.open();
+            CuraApplication.setDefaultPath("dialog_material_path", folder);
+        }
+    }
+
+    FileDialog
+    {
+        id: exportMaterialDialog
+        title: catalog.i18nc("@title:window", "Export Material")
+        selectExisting: false
+        nameFilters: Cura.ContainerManager.getContainerNameFilters("material")
+        folder: CuraApplication.getDefaultPath("dialog_material_path")
+        onAccepted:
+        {
+            var result = Cura.ContainerManager.exportContainer(base.currentItem.root_material_id, selectedNameFilter, fileUrl);
+
+            messageDialog.title = catalog.i18nc("@title:window", "Export Material");
+            if (result.status == "error") {
+                messageDialog.icon = StandardIcon.Critical;
+                messageDialog.text = catalog.i18nc("@info:status Don't translate the XML tags <filename> and <message>!", "Failed to export material to <filename>%1</filename>: <message>%2</message>").arg(fileUrl).arg(result.message);
+                messageDialog.open();
+            }
+            else if (result.status == "success") {
+                messageDialog.icon = StandardIcon.Information;
+                messageDialog.text = catalog.i18nc("@info:status Don't translate the XML tag <filename>!", "Successfully exported material to <filename>%1</filename>").arg(result.path);
+                messageDialog.open();
+            }
+            CuraApplication.setDefaultPath("dialog_material_path", folder);
+        }
+    }
+
+    MessageDialog
+    {
+        id: messageDialog
+    }
+
+
+    Item {
+        id: contentsItem
+
+        anchors {
+            top: titleLabel.bottom
+            left: parent.left
+            right: parent.right
+            bottom: parent.bottom
+            margins: 5 * screenScaleFactor
+            bottomMargin: 0
+        }
+
+        clip: true
+    }
+
+    Item
+    {
+        anchors {
+            top: buttonRow.bottom
+            topMargin: UM.Theme.getSize("default_margin").height
+            left: parent.left
+            right: parent.right
+            bottom: parent.bottom
+        }
+
+        SystemPalette { id: palette }
+
+        Label
+        {
+            id: captionLabel
+            anchors {
+                top: parent.top
+                left: parent.left
+            }
+            visible: text != ""
+            text: {
                 var caption = catalog.i18nc("@action:label", "Printer") + ": " + Cura.MachineManager.activeMachineName;
                 if (Cura.MachineManager.hasVariants)
                 {
@@ -118,103 +305,177 @@ UM.ManagementPage
                 }
                 return caption;
             }
-    detailsVisible: true
+            width: materialScrollView.width
+            elide: Text.ElideRight
+        }
 
-    section.property: "section"
+        ScrollView
-    section.delegate: Label
         {
+            id: materialScrollView
+            anchors {
+                top: captionLabel.visible ? captionLabel.bottom : parent.top
+                topMargin: captionLabel.visible ? UM.Theme.getSize("default_margin").height : 0
+                bottom: parent.bottom
+                left: parent.left
+            }
+
+            Rectangle {
+                parent: viewport
+                anchors.fill: parent
+                color: palette.light
+            }
+
+            width: true ? (parent.width * 0.4) | 0 : parent.width
+
+            ListView
+            {
+                id: materialListView
+
+                model: materialsModel
+
+                section.property: "brand"
+                section.criteria: ViewSection.FullString
+                section.delegate: Rectangle
+                {
+                    width: materialScrollView.width
+                    height: childrenRect.height
+                    color: palette.light
+
+                    Label
+                    {
+                        anchors.left: parent.left
+                        anchors.leftMargin: UM.Theme.getSize("default_lining").width
                         text: section
                         font.bold: true
-        anchors.left: parent.left;
+                        color: palette.text
-        anchors.leftMargin: UM.Theme.getSize("default_lining").width;
+                    }
                 }
 
-    buttons: [
+                delegate: Rectangle
+                {
+                    width: materialScrollView.width
+                    height: childrenRect.height
+                    color: ListView.isCurrentItem ? palette.highlight : (model.index % 2) ? palette.base : palette.alternateBase
 
-        // Activate button
+                    Row
-        Button {
+                    {
-            text: catalog.i18nc("@action:button", "Activate")
+                        id: materialRow
-            iconName: "list-activate";
+                        spacing: (UM.Theme.getSize("default_margin").width / 2) | 0
-            enabled: base.currentItem != null && base.currentItem.id != Cura.MachineManager.activeMaterialId && Cura.MachineManager.hasMaterials
+                        anchors.left: parent.left
-            onClicked: {
+                        anchors.leftMargin: UM.Theme.getSize("default_margin").width
-                forceActiveFocus()
+                        anchors.right: parent.right
-                Cura.MachineManager.setActiveMaterial(base.currentItem.id)
-                currentItem = base.model.getItem(base.objectList.currentIndex) // Refresh the current item.
-            }
-        },
 
-        // Create button
+                        property bool isItemActivated:
-        Button {
+                        {
-            text: catalog.i18nc("@action:button", "Create")
+                            const extruder_position = Cura.ExtruderManager.activeExtruderIndex;
-            iconName: "list-add"
+                            const root_material_id = Cura.MachineManager.currentRootMaterialId[extruder_position];
-            onClicked: {
+                            return model.root_material_id == root_material_id;
-                forceActiveFocus()
-                Cura.ContainerManager.createMaterial()
-            }
-        },
-
-        // Duplicate button
-        Button {
-            text: catalog.i18nc("@action:button", "Duplicate");
-            iconName: "list-add";
-            enabled: base.currentItem != null
-            onClicked: {
-                forceActiveFocus()
-                Cura.ContainerManager.duplicateOriginalMaterial(base.currentItem.id)
-            }
-        },
-
-        // Remove button
-        Button {
-            text: catalog.i18nc("@action:button", "Remove")
-            iconName: "list-remove"
-            enabled: base.currentItem != null && !base.currentItem.readOnly && !Cura.ContainerManager.isContainerUsed(base.currentItem.id)
-            onClicked: {
-                forceActiveFocus()
-                confirmDialog.open()
-            }
-        },
-
-        // Import button
-        Button {
-            text: catalog.i18nc("@action:button", "Import")
-            iconName: "document-import"
-            onClicked: {
-                forceActiveFocus()
-                importDialog.open()
-            }
-            visible: true
-        },
-
-        // Export button
-        Button {
-            text: catalog.i18nc("@action:button", "Export")
-            iconName: "document-export"
-            onClicked: {
-                forceActiveFocus()
-                exportDialog.open()
-            }
-            enabled: currentItem != null
                         }
 
-    ]
+                        Rectangle
+                        {
+                            width: Math.floor(parent.height * 0.8)
+                            height: Math.floor(parent.height * 0.8)
+                            color: model.color_code
+                            border.color: parent.ListView.isCurrentItem ? palette.highlightedText : palette.text;
+                            anchors.verticalCenter: parent.verticalCenter
+                        }
+                        Label
+                        {
+                            width: Math.floor((parent.width * 0.3))
+                            text: model.material
+                            elide: Text.ElideRight
+                            font.italic: materialRow.isItemActivated
+                            color: parent.ListView.isCurrentItem ? palette.highlightedText : palette.text;
+                        }
+                        Label
+                        {
+                            text: (model.name != model.material) ? model.name : ""
+                            elide: Text.ElideRight
+                            font.italic: materialRow.isItemActivated
+                            color: parent.ListView.isCurrentItem ? palette.highlightedText : palette.text;
+                        }
+                    }
 
-    Item {
+                    MouseArea
-        visible: base.currentItem != null
+                    {
                         anchors.fill: parent
+                        onClicked: {
+                            parent.ListView.view.currentIndex = model.index;
+                        }
+                    }
+                }
+
+                function activateDetailsWithIndex(index) {
+                    var model = materialsModel.getItem(index);
+                    base.currentItem = model;
+                    materialDetailsView.containerId = model.container_id;
+                    materialDetailsView.currentMaterialNode = model.container_node;
+
+                    detailsPanel.updateMaterialPropertiesObject();
+                }
+
+                onCurrentIndexChanged:
+                {
+                    forceActiveFocus();  // causes the changed fields to be saved
+                    activateDetailsWithIndex(currentIndex);
+                }
+            }
+        }
+
 
         Item
         {
-            id: profileName
+            id: detailsPanel
 
-            width: parent.width;
+            anchors {
-            height: childrenRect.height
+                left: materialScrollView.right
-
+                leftMargin: UM.Theme.getSize("default_margin").width
-            Label { text: materialProperties.name; font: UM.Theme.getFont("large"); }
+                top: parent.top
+                bottom: parent.bottom
+                right: parent.right
             }
 
-        MaterialView
+            function updateMaterialPropertiesObject()
             {
+                var currentItem = materialsModel.getItem(materialListView.currentIndex);
+
+                materialProperties.name = currentItem.name;
+                materialProperties.guid = currentItem.guid;
+
+                materialProperties.brand = currentItem.brand ? currentItem.brand : "Unknown";
+                materialProperties.material = currentItem.material ? currentItem.material : "Unknown";
+                materialProperties.color_name = currentItem.color_name ? currentItem.color_name : "Yellow";
+                materialProperties.color_code = currentItem.color_code ? currentItem.color_code : "yellow";
+
+                materialProperties.description = currentItem.description ? currentItem.description : "";
+                materialProperties.adhesion_info = currentItem.adhesion_info ? currentItem.adhesion_info : "";
+
+                materialProperties.density = currentItem.density ? currentItem.density : 0.0;
+                materialProperties.diameter = currentItem.diameter ? currentItem.diameter : 0.0;
+                materialProperties.approximate_diameter = currentItem.approximate_diameter ? currentItem.approximate_diameter : "0";
+            }
+
+            Item
+            {
+                anchors.fill: parent
+
+                Item    // Material title Label
+                {
+                    id: profileName
+
+                    width: parent.width
+                    height: childrenRect.height
+
+                    Label {
+                        text: materialProperties.name
+                        font: UM.Theme.getFont("large")
+                    }
+                }
+
+                MaterialView    // Material detailed information view below the title Label
+                {
+                    id: materialDetailsView
                     anchors
                     {
                         left: parent.left
@@ -224,10 +485,11 @@ UM.ManagementPage
                         bottom: parent.bottom
                     }
 
-            editingEnabled: base.currentItem != null && !base.currentItem.readOnly
+                    editingEnabled: base.currentItem != null && !base.currentItem.is_read_only
 
                     properties: materialProperties
-            containerId: base.currentItem != null ? base.currentItem.id : ""
+                    containerId: base.currentItem != null ? base.currentItem.container_id : ""
+                    currentMaterialNode: base.currentItem.container_node
 
                     property alias pane: base
                 }
@@ -239,8 +501,9 @@ UM.ManagementPage
                     property string guid: "00000000-0000-0000-0000-000000000000"
                     property string name: "Unknown";
                     property string profile_type: "Unknown";
-            property string supplier: "Unknown";
+                    property string brand: "Unknown";
-            property string material_type: "Unknown";
+                    property string material: "Unknown";  // This needs to be named as "material" to be consistent with
+                                                          // the material container's metadata entry
 
                     property string color_name: "Yellow";
                     property color color_code: "yellow";
@@ -257,156 +520,7 @@ UM.ManagementPage
                     property string description: "";
                     property string adhesion_info: "";
                 }
-
+            }
-        UM.ConfirmRemoveDialog
-        {
-            id: confirmDialog
-            object: base.currentItem != null ? base.currentItem.name : ""
-            onYes:
-            {
-                // A material container can actually be multiple items, so we need to find (and remove) all of them.
-                var base_file = Cura.ContainerManager.getContainerMetaDataEntry(base.currentItem.id, "base_file")
-                if(base_file == "")
-                {
-                    base_file = base.currentItem.id
-                }
-                var guid = Cura.ContainerManager.getContainerMetaDataEntry(base.currentItem.id, "GUID")
-                // remove base container first, it otherwise triggers loading the base file while removing other containers
-                var base_containers = Cura.ContainerManager.findInstanceContainers({"GUID": guid, "id": base_file, "base_file": base_file, "type": "material"})
-                for(var i in base_containers)
-                {
-                    Cura.ContainerManager.removeContainer(base_containers[i]);
-                }
-                var containers = Cura.ContainerManager.findInstanceContainers({"GUID": guid, "base_file": base_file, "type": "material"})
-                for(var i in containers)
-                {
-                    Cura.ContainerManager.removeContainer(containers[i]);
-                }
-                if(base.objectList.currentIndex > 0)
-                {
-                    base.objectList.currentIndex--;
-                }
-                currentItem = base.model.getItem(base.objectList.currentIndex) // Refresh the current item.
-            }
-        }
-
-        FileDialog
-        {
-            id: importDialog;
-            title: catalog.i18nc("@title:window", "Import Material");
-            selectExisting: true;
-            nameFilters: Cura.ContainerManager.getContainerNameFilters("material")
-            folder: CuraApplication.getDefaultPath("dialog_material_path")
-            onAccepted:
-            {
-                var result = Cura.ContainerManager.importMaterialContainer(fileUrl)
-
-                messageDialog.title = catalog.i18nc("@title:window", "Import Material")
-                messageDialog.text = catalog.i18nc("@info:status Don't translate the XML tags <filename> or <message>!", "Could not import material <filename>%1</filename>: <message>%2</message>").arg(fileUrl).arg(result.message)
-                if(result.status == "success")
-                {
-                    messageDialog.icon = StandardIcon.Information
-                    messageDialog.text = catalog.i18nc("@info:status Don't translate the XML tag <filename>!", "Successfully imported material <filename>%1</filename>").arg(fileUrl)
-                }
-                else if(result.status == "duplicate")
-                {
-                    messageDialog.icon = StandardIcon.Warning
-                }
-                else
-                {
-                    messageDialog.icon = StandardIcon.Critical
-                }
-                messageDialog.open()
-                CuraApplication.setDefaultPath("dialog_material_path", folder)
-            }
-        }
-
-        FileDialog
-        {
-            id: exportDialog;
-            title: catalog.i18nc("@title:window", "Export Material");
-            selectExisting: false;
-            nameFilters: Cura.ContainerManager.getContainerNameFilters("material")
-            folder: CuraApplication.getDefaultPath("dialog_material_path")
-            onAccepted:
-            {
-                if(base.currentItem.metadata.base_file)
-                {
-                    var result = Cura.ContainerManager.exportContainer(base.currentItem.metadata.base_file, selectedNameFilter, fileUrl)
-                }
-                else
-                {
-                    var result = Cura.ContainerManager.exportContainer(base.currentItem.id, selectedNameFilter, fileUrl)
-                }
-
-                messageDialog.title = catalog.i18nc("@title:window", "Export Material")
-                if(result.status == "error")
-                {
-                    messageDialog.icon = StandardIcon.Critical
-                    messageDialog.text = catalog.i18nc("@info:status Don't translate the XML tags <filename> and <message>!", "Failed to export material to <filename>%1</filename>: <message>%2</message>").arg(fileUrl).arg(result.message)
-                    messageDialog.open()
-                }
-                else if(result.status == "success")
-                {
-                    messageDialog.icon = StandardIcon.Information
-                    messageDialog.text = catalog.i18nc("@info:status Don't translate the XML tag <filename>!", "Successfully exported material to <filename>%1</filename>").arg(result.path)
-                    messageDialog.open()
-                }
-                CuraApplication.setDefaultPath("dialog_material_path", folder)
-            }
-        }
-
-        MessageDialog
-        {
-            id: messageDialog
-        }
-
-        UM.SettingPropertyProvider
-        {
-            id: materialDiameterProvider
-
-            containerStackId: Cura.ExtruderManager.activeExtruderStackId
-            key: "material_diameter"
-            watchedProperties: [ "value" ]
-            storeIndex: 5
-        }
-
-        UM.I18nCatalog { id: catalog; name: "cura"; }
-        SystemPalette { id: palette }
-    }
-
-    onCurrentItemChanged:
-    {
-        if(currentItem == null)
-        {
-            return
-        }
-        materialProperties.name = currentItem.name;
-        materialProperties.guid = Cura.ContainerManager.getContainerMetaDataEntry(base.currentItem.id, "GUID");
-
-        if(currentItem.metadata != undefined && currentItem.metadata != null)
-        {
-            materialProperties.supplier = currentItem.metadata.brand ? currentItem.metadata.brand : "Unknown";
-            materialProperties.material_type = currentItem.metadata.material ? currentItem.metadata.material : "Unknown";
-            materialProperties.color_name = currentItem.metadata.color_name ? currentItem.metadata.color_name : "Yellow";
-            materialProperties.color_code = currentItem.metadata.color_code ? currentItem.metadata.color_code : "yellow";
-
-            materialProperties.description = currentItem.metadata.description ? currentItem.metadata.description : "";
-            materialProperties.adhesion_info = currentItem.metadata.adhesion_info ? currentItem.metadata.adhesion_info : "";
-
-            if(currentItem.metadata.properties != undefined && currentItem.metadata.properties != null)
-            {
-                materialProperties.density = currentItem.metadata.properties.density ? currentItem.metadata.properties.density : 0.0;
-                materialProperties.diameter = currentItem.metadata.properties.diameter ? currentItem.metadata.properties.diameter : 0.0;
-                materialProperties.approximate_diameter = currentItem.metadata.approximate_diameter ? currentItem.metadata.approximate_diameter : "0";
-            }
-            else
-            {
-                materialProperties.density = 0.0;
-                materialProperties.diameter = 0.0;
-                materialProperties.approximate_diameter = "0";
-            }
-
         }
     }
 }

resources/qml/Preferences/ProfileTab.qml

@@ -1,8 +1,8 @@
-// Copyright (c) 2016 Ultimaker B.V.
+// Copyright (c) 2018 Ultimaker B.V.
 // Cura is released under the terms of the LGPLv3 or higher.
 
-import QtQuick 2.1
+import QtQuick 2.8
-import QtQuick.Controls 1.1
+import QtQuick.Controls 1.4
 
 import UM 1.2 as UM
 import Cura 1.0 as Cura
@@ -11,10 +11,8 @@ Tab
 {
     id: base
 
-    property string extruderId: "";
+    property string extruderPosition: ""
-    property string extruderDefinition: "";
+    property var qualityItem: null
-    property string quality: "";
-    property string material: "";
 
     TableView
     {
@@ -38,8 +36,8 @@ Tab
                     anchors.leftMargin: UM.Theme.getSize("default_margin").width
                     anchors.right: parent.right
                     text: (styleData.value.substr(0,1) == "=") ? catalog.i18nc("@info:status", "Calculated") : styleData.value
-                    font.strikeout: styleData.column == 1 && quality == Cura.MachineManager.globalQualityId && setting.user_value != ""
+                    font.strikeout: styleData.column == 1 && setting.user_value != "" && qualityItem.name == Cura.MachineManager.activeQualityOrQualityChangesName
-                    font.italic: setting.profile_value_source == "quality_changes" || (quality == Cura.MachineManager.globalQualityId && setting.user_value != "")
+                    font.italic: setting.profile_value_source == "quality_changes" || (setting.user_value != "" && qualityItem.name == Cura.MachineManager.activeQualityOrQualityChangesName)
                     opacity: font.strikeout ? 0.5 : 1
                     color: styleData.textColor
                     elide: Text.ElideRight
@@ -65,7 +63,7 @@ Tab
         {
             role: "user_value"
             title: catalog.i18nc("@title:column", "Current");
-            visible: quality == Cura.MachineManager.globalQualityId
+            visible: qualityItem.name == Cura.MachineManager.activeQualityOrQualityChangesName
             width: (parent.width * 0.18) | 0
             delegate: itemDelegate
         }
@@ -87,10 +85,8 @@ Tab
         model: Cura.QualitySettingsModel
         {
             id: qualitySettings
-            extruderId: base.extruderId
+            selectedPosition: base.extruderPosition
-            extruderDefinition: base.extruderDefinition
+            selectedQualityItem: base.qualityItem
-            quality: base.quality != null ? base.quality : ""
-            material: base.material != null ? base.material : ""
         }
 
         SystemPalette { id: palette }

resources/qml/Preferences/ProfilesPage.qml

@@ -1,159 +1,459 @@
-// Copyright (c) 2016 Ultimaker B.V.
+// Copyright (c) 2018 Ultimaker B.V.
-// Cura is released under the terms of the LGPLv3 or higher.
+// Uranium is released under the terms of the LGPLv3 or higher.
 
-import QtQuick 2.1
+import QtQuick 2.8
-import QtQuick.Controls 1.1
+import QtQuick.Controls 1.4
+import QtQuick.Layouts 1.3
 import QtQuick.Dialogs 1.2
 
 import UM 1.2 as UM
 import Cura 1.0 as Cura
 
-UM.ManagementPage
-{
-    id: base;
 
-    title: catalog.i18nc("@title:tab", "Profiles");
+Item
+{
+    id: base
+
+    property QtObject qualityManager: CuraApplication.getQualityManager()
+    property var resetEnabled: false  // Keep PreferencesDialog happy
     property var extrudersModel: Cura.ExtrudersModel {}
 
-    model: Cura.QualityAndUserProfilesModel { }
+    UM.I18nCatalog { id: catalog; name: "cura"; }
 
-    section.property: "readOnly"
+    Cura.QualityManagementModel {
-    section.delegate: Rectangle
+        id: qualitiesModel
+    }
+
+    Label {
+        id: titleLabel
+        anchors {
+            top: parent.top
+            left: parent.left
+            right: parent.right
+            margins: 5 * screenScaleFactor
+        }
+        font.pointSize: 18
+        text: catalog.i18nc("@title:tab", "Profiles")
+    }
+
+    property var hasCurrentItem: qualityListView.currentItem != null
+
+    property var currentItem: {
+        var current_index = qualityListView.currentIndex;
+        return qualitiesModel.getItem(current_index);
+    }
+
+    property var isCurrentItemActivated: {
+        if (!base.currentItem) {
+            return false;
+        }
+        return base.currentItem.name == Cura.MachineManager.activeQualityOrQualityChangesName;
+    }
+
+    property var canCreateProfile: {
+        return isCurrentItemActivated && Cura.MachineManager.hasUserSettings;
+    }
+
+    Row  // Button Row
     {
-        height: childrenRect.height;
+        id: buttonRow
+        anchors {
+            left: parent.left
+            right: parent.right
+            top: titleLabel.bottom
+        }
+        height: childrenRect.height
 
-        Label
+        // Activate button
-        {
-            anchors.left: parent.left;
-            anchors.leftMargin: UM.Theme.getSize("default_lining").width;
-            text: section == "true" ? catalog.i18nc("@label", "Protected profiles") : catalog.i18nc("@label", "Custom profiles")
-            font.bold: true
-        }
-    }
-
-    activeId: Cura.MachineManager.activeQualityId
-    activeIndex: {
-        for(var i = 0; i < model.rowCount(); i++) {
-            if (model.getItem(i).id == Cura.MachineManager.activeQualityId) {
-                return i;
-            }
-        }
-        return -1;
-    }
-
-    function canCreateProfile() {
-        return base.currentItem && (base.currentItem.id == Cura.MachineManager.activeQualityId) && Cura.MachineManager.hasUserSettings;
-    }
-
-    buttons: [
         Button
         {
-            text: catalog.i18nc("@action:button", "Activate");
+            text: catalog.i18nc("@action:button", "Activate")
-            iconName: "list-activate";
+            iconName: "list-activate"
-            enabled: base.currentItem != null ? base.currentItem.id != Cura.MachineManager.activeQualityId : false;
+            enabled: !isCurrentItemActivated
-            onClicked:
+            onClicked: {
-            {
+                if (base.currentItem.is_read_only) {
-                Cura.MachineManager.setActiveQuality(base.currentItem.id)
+                    Cura.MachineManager.setQualityGroup(base.currentItem.quality_group);
-                currentItem = base.model.getItem(base.objectList.currentIndex) // Refresh the current item.
+                } else {
+                    Cura.MachineManager.setQualityChangesGroup(base.currentItem.quality_changes_group);
+                }
+            }
         }
-        },
 
         // Create button
         Button
         {
             text: catalog.i18nc("@label", "Create")
-            enabled: base.canCreateProfile() && !Cura.MachineManager.stacksHaveErrors
+            iconName: "list-add"
-            visible: base.canCreateProfile()
+            enabled: base.canCreateProfile && !Cura.MachineManager.stacksHaveErrors
-            iconName: "list-add";
+            visible: base.canCreateProfile
 
-            onClicked:
+            onClicked: {
-            {
+                createQualityDialog.object = Cura.ContainerManager.makeUniqueName(base.currentItem.name);
-                newNameDialog.object = base.currentItem != null ? Cura.ContainerManager.makeUniqueName(base.currentItem.name) : "";
+                createQualityDialog.open();
-                newNameDialog.open();
+                createQualityDialog.selectText();
-                newNameDialog.selectText();
+            }
         }
-        },
 
         // Duplicate button
         Button
         {
             text: catalog.i18nc("@label", "Duplicate")
-            enabled: ! base.canCreateProfile()
+            iconName: "list-add"
-            visible: ! base.canCreateProfile()
+            enabled: !base.canCreateProfile
-            iconName: "list-add";
+            visible: !base.canCreateProfile
 
-            onClicked:
+            onClicked: {
-            {
+                duplicateQualityDialog.object = Cura.ContainerManager.makeUniqueName(base.currentItem.name);
-                newDuplicateNameDialog.object = Cura.ContainerManager.makeUniqueName(base.currentItem.name);
+                duplicateQualityDialog.open();
-                newDuplicateNameDialog.open();
+                duplicateQualityDialog.selectText();
-                newDuplicateNameDialog.selectText();
+            }
         }
-        },
 
+        // Remove button
         Button
         {
-            text: catalog.i18nc("@action:button", "Remove");
+            text: catalog.i18nc("@action:button", "Remove")
-            iconName: "list-remove";
+            iconName: "list-remove"
-            enabled: base.currentItem != null ? !base.currentItem.readOnly && !Cura.ContainerManager.isContainerUsed(base.currentItem.id) : false;
+            enabled: base.hasCurrentItem && !base.currentItem.is_read_only && !base.isCurrentItemActivated
-            onClicked: confirmDialog.open();
+            onClicked: {
-        },
+                forceActiveFocus();
-        Button
+                confirmRemoveQualityDialog.open();
-        {
-            text: catalog.i18nc("@action:button", "Rename");
-            iconName: "edit-rename";
-            enabled: base.currentItem != null ? !base.currentItem.readOnly : false;
-            onClicked:
-            {
-                renameDialog.open();
-                renameDialog.selectText();
             }
-        },
+        }
+
+        // Rename button
         Button
         {
-            text: catalog.i18nc("@action:button", "Import");
+            text: catalog.i18nc("@action:button", "Rename")
-            iconName: "document-import";
+            iconName: "edit-rename"
-            onClicked: importDialog.open();
+            enabled: base.hasCurrentItem && !base.currentItem.is_read_only
-        },
+            onClicked: {
+                renameQualityDialog.object = base.currentItem.name;
+                renameQualityDialog.open();
+                renameQualityDialog.selectText();
+            }
+        }
+
+        // Import button
+        Button
+        {
+            text: catalog.i18nc("@action:button", "Import")
+            iconName: "document-import"
+            onClicked: {
+                importDialog.open();
+            }
+        }
+
+        // Export button
         Button
         {
             text: catalog.i18nc("@action:button", "Export")
             iconName: "document-export"
-            onClicked: exportDialog.open()
+            enabled: base.hasCurrentItem && !base.currentItem.is_read_only
-            enabled: currentItem != null && !base.currentItem.readOnly
+            onClicked: {
+                exportDialog.open();
+            }
+        }
     }
-    ]
-
-    scrollviewCaption: catalog.i18nc("@label %1 is printer name","Printer: %1").arg(Cura.MachineManager.activeMachineName)
 
+    // Click create profile from ... in Profile context menu
     signal createProfile()
     onCreateProfile:
     {
-        newNameDialog.object = base.currentItem != null ? Cura.ContainerManager.makeUniqueName(base.currentItem.name) : "";
+        createQualityDialog.object = Cura.ContainerManager.makeUniqueName(Cura.MachineManager.activeQualityOrQualityChangesName);
-        newNameDialog.open();
+        createQualityDialog.open();
-        newNameDialog.selectText();
+        createQualityDialog.selectText();
     }
 
-    signal selectContainer(string name)
+    // Dialog to request a name when creating a new profile
-    onSelectContainer:
+    UM.RenameDialog
     {
-        objectList.currentIndex = objectList.model.find("name", name);
+        id: createQualityDialog
+        title: catalog.i18nc("@title:window", "Create Profile")
+        object: "<new name>"
+        onAccepted:
+        {
+            base.newQualityNameToSelect = newName;  // We want to switch to the new profile once it's created
+            base.toActivateNewQuality = true;
+            Cura.ContainerManager.createQualityChanges(newName);
+        }
+    }
+
+    property string newQualityNameToSelect: ""
+    property bool toActivateNewQuality: false
+
+    // This connection makes sure that we will switch to the correct quality after the model gets updated
+    Connections
+    {
+        target: qualitiesModel
+        onItemsChanged: {
+            var toSelectItemName = base.currentItem == null ? "" : base.currentItem.name;
+            if (newQualityNameToSelect != "") {
+                toSelectItemName = newQualityNameToSelect;
+            }
+
+            var newIdx = -1;  // Default to nothing if nothing can be found
+            if (toSelectItemName != "") {
+                // Select the required quality name if given
+                for (var idx = 0; idx < qualitiesModel.rowCount(); ++idx) {
+                    var item = qualitiesModel.getItem(idx);
+                    if (item.name == toSelectItemName) {
+                        // Switch to the newly created profile if needed
+                        newIdx = idx;
+                        if (base.toActivateNewQuality) {
+                            // Activate this custom quality if required
+                            Cura.MachineManager.setQualityChangesGroup(item.quality_changes_group);
+                        }
+                        break;
+                    }
+                }
+            }
+            qualityListView.currentIndex = newIdx;
+
+            // Reset states
+            base.newQualityNameToSelect = "";
+            base.toActivateNewQuality = false;
+        }
+    }
+
+    // Dialog to request a name when duplicating a new profile
+    UM.RenameDialog
+    {
+        id: duplicateQualityDialog
+        title: catalog.i18nc("@title:window", "Duplicate Profile")
+        object: "<new name>"
+        onAccepted:
+        {
+            base.qualityManager.duplicateQualityChanges(newName, base.currentItem);
+        }
+    }
+
+    // Confirmation dialog for removing a profile
+    MessageDialog
+    {
+        id: confirmRemoveQualityDialog
+
+        icon: StandardIcon.Question;
+        title: catalog.i18nc("@title:window", "Confirm Remove")
+        text: catalog.i18nc("@label (%1 is object name)", "Are you sure you wish to remove %1? This cannot be undone!").arg(base.currentItem.name)
+        standardButtons: StandardButton.Yes | StandardButton.No
+        modality: Qt.ApplicationModal
+
+        onYes:
+        {
+            base.qualityManager.removeQualityChangesGroup(base.currentItem.quality_changes_group);
+            // reset current item to the first if available
+            qualityListView.currentIndex = -1;  // Reset selection.
+        }
+    }
+
+    // Dialog to rename a quality profile
+    UM.RenameDialog
+    {
+        id: renameQualityDialog
+        title: catalog.i18nc("@title:window", "Rename Profile")
+        object: "<new name>"
+        onAccepted:
+        {
+            var actualNewName = base.qualityManager.renameQualityChangesGroup(base.currentItem.quality_changes_group, newName);
+            base.newQualityNameToSelect = actualNewName;  // Select the new name after the model gets updated
+        }
+    }
+
+    // Dialog for importing a quality profile
+    FileDialog
+    {
+        id: importDialog
+        title: catalog.i18nc("@title:window", "Import Profile")
+        selectExisting: true
+        nameFilters: qualitiesModel.getFileNameFilters("profile_reader")
+        folder: CuraApplication.getDefaultPath("dialog_profile_path")
+        onAccepted:
+        {
+            var result = Cura.ContainerManager.importProfile(fileUrl);
+            messageDialog.text = result.message;
+            if (result.status == "ok") {
+                messageDialog.icon = StandardIcon.Information;
+            }
+            else if (result.status == "duplicate") {
+                messageDialog.icon = StandardIcon.Warning;
+            }
+            else {
+                messageDialog.icon = StandardIcon.Critical;
+            }
+            messageDialog.open();
+            CuraApplication.setDefaultPath("dialog_profile_path", folder);
+        }
+    }
+
+    // Dialog for exporting a quality profile
+    FileDialog
+    {
+        id: exportDialog
+        title: catalog.i18nc("@title:window", "Export Profile")
+        selectExisting: false
+        nameFilters: qualitiesModel.getFileNameFilters("profile_writer")
+        folder: CuraApplication.getDefaultPath("dialog_profile_path")
+        onAccepted:
+        {
+            var result = Cura.ContainerManager.exportQualityChangesGroup(base.currentItem.quality_changes_group,
+                                                                         fileUrl, selectedNameFilter);
+
+            if (result && result.status == "error") {
+                messageDialog.icon = StandardIcon.Critical;
+                messageDialog.text = result.message;
+                messageDialog.open();
+            }
+
+            // else pop-up Message thing from python code
+            CuraApplication.setDefaultPath("dialog_profile_path", folder);
+        }
     }
 
     Item {
-        visible: base.currentItem != null
+        id: contentsItem
+
+        anchors {
+            top: titleLabel.bottom
+            left: parent.left
+            right: parent.right
+            bottom: parent.bottom
+            margins: 5 * screenScaleFactor
+            bottomMargin: 0
+        }
+
+        clip: true
+    }
+
+    Item
+    {
+        anchors {
+            top: buttonRow.bottom
+            topMargin: UM.Theme.getSize("default_margin").height
+            left: parent.left
+            right: parent.right
+            bottom: parent.bottom
+        }
+
+        SystemPalette { id: palette }
+
+        Label
+        {
+            id: captionLabel
+            anchors {
+                top: parent.top
+                left: parent.left
+            }
+            visible: text != ""
+            text: catalog.i18nc("@label %1 is printer name", "Printer: %1").arg(Cura.MachineManager.activeMachineName)
+            width: profileScrollView.width
+            elide: Text.ElideRight
+        }
+
+        ScrollView
+        {
+            id: profileScrollView
+            anchors {
+                top: captionLabel.visible ? captionLabel.bottom : parent.top
+                topMargin: captionLabel.visible ? UM.Theme.getSize("default_margin").height : 0
+                bottom: parent.bottom
+                left: parent.left
+            }
+
+            Rectangle {
+                parent: viewport
+                anchors.fill: parent
+                color: palette.light
+            }
+
+            width: true ? (parent.width * 0.4) | 0 : parent.width
+
+            ListView
+            {
+                id: qualityListView
+
+                model: qualitiesModel
+
+                section.property: "is_read_only"
+                section.delegate: Rectangle
+                {
+                    height: childrenRect.height
+
+                    Label
+                    {
+                        anchors.left: parent.left
+                        anchors.leftMargin: UM.Theme.getSize("default_lining").width
+                        text: section == "true" ? catalog.i18nc("@label", "Protected profiles") : catalog.i18nc("@label", "Custom profiles")
+                        font.bold: true
+                    }
+                }
+
+                delegate: Rectangle
+                {
+                    width: profileScrollView.width
+                    height: childrenRect.height
+                    color: ListView.isCurrentItem ? palette.highlight : (model.index % 2) ? palette.base : palette.alternateBase
+
+                    Row
+                    {
+                        spacing: (UM.Theme.getSize("default_margin").width / 2) | 0
+                        anchors.left: parent.left
+                        anchors.leftMargin: UM.Theme.getSize("default_margin").width
+                        anchors.right: parent.right
+                        Label
+                        {
+                            width: Math.floor((parent.width * 0.8))
+                            text: model.name
+                            elide: Text.ElideRight
+                            font.italic: model.name == Cura.MachineManager.activeQualityOrQualityChangesName
+                            color: parent.ListView.isCurrentItem ? palette.highlightedText : palette.text
+                        }
+                    }
+
+                    MouseArea
+                    {
+                        anchors.fill: parent
+                        onClicked: {
+                            parent.ListView.view.currentIndex = model.index;
+                        }
+                    }
+                }
+            }
+        }
+
+        // details panel on the right
+        Item
+        {
+            id: detailsPanel
+
+            anchors {
+                left: profileScrollView.right
+                leftMargin: UM.Theme.getSize("default_margin").width
+                top: parent.top
+                bottom: parent.bottom
+                right: parent.right
+            }
+
+            Item
+            {
                 anchors.fill: parent
 
-        Label {
+                Item    // Profile title Label
+                {
                     id: profileName
-            text: base.currentItem ? base.currentItem.name: ""
+
-            font: UM.Theme.getFont("large")
                     width: parent.width
-            elide: Text.ElideRight
+                    height: childrenRect.height
+
+                    Label {
+                        text: base.currentItem.name
+                        font: UM.Theme.getFont("large")
+                    }
                 }
 
                 Flow {
                     id: currentSettingsActions
-            visible: currentItem && currentItem.id == Cura.MachineManager.activeQualityId
+                    visible: base.hasCurrentItem && base.currentItem.name == Cura.MachineManager.activeQualityOrQualityChangesName
                     anchors.left: parent.left
                     anchors.right: parent.right
                     anchors.top: profileName.bottom
@@ -161,10 +461,8 @@ UM.ManagementPage
 
                     Button
                     {
-                text: {
+                        text: catalog.i18nc("@action:button", "Update profile with current settings/overrides")
-                    return catalog.i18nc("@action:button", "Update profile with current settings/overrides");
+                        enabled: Cura.MachineManager.hasUserSettings && !base.currentItem.is_read_only
-                }
-                enabled: Cura.MachineManager.hasUserSettings && !Cura.MachineManager.isReadOnly(Cura.MachineManager.activeQualityId)
                         onClicked: Cura.ContainerManager.updateQualityChanges()
                     }
 
@@ -193,13 +491,14 @@ UM.ManagementPage
                     }
                     Label {
                         id: noCurrentSettingsMessage
-                visible: currentItem && currentItem.id == Cura.MachineManager.activeQualityId && !Cura.MachineManager.hasUserSettings
+                        visible: base.isCurrentItemActivated && !Cura.MachineManager.hasUserSettings
                         text: catalog.i18nc("@action:label", "Your current settings match the selected profile.")
                         wrapMode: Text.WordWrap
                         width: parent.width
                     }
                 }
 
+
                 TabView
                 {
                     anchors.left: parent.left
@@ -208,13 +507,12 @@ UM.ManagementPage
                     anchors.right: parent.right
                     anchors.bottom: parent.bottom
 
-            currentIndex: Cura.ExtruderManager.extruderCount > 0 ? Cura.ExtruderManager.activeExtruderIndex + 1 : 0
+                    currentIndex: 0
 
                     ProfileTab
                     {
-                title: catalog.i18nc("@title:tab", "Global Settings");
+                        title: catalog.i18nc("@title:tab", "Global Settings")
-                quality: base.currentItem != null ? base.currentItem.id : "";
+                        qualityItem: base.currentItem
-                material: Cura.MachineManager.allActiveMaterialIds[Cura.MachineManager.activeMachineId]
                     }
 
                     Repeater
@@ -223,134 +521,13 @@ UM.ManagementPage
 
                         ProfileTab
                         {
-                    title: model.name;
+                            title: model.name
-                    extruderId: model.id;
+                            extruderPosition: model.index
-                    extruderDefinition: model.definition;
+                            qualityItem: base.currentItem
-                    quality: base.currentItem != null ? base.currentItem.id : "";
-                    material: Cura.MachineManager.allActiveMaterialIds[model.id]
                         }
                     }
                 }
             }
-
-    Item
-    {
-        UM.I18nCatalog { id: catalog; name: "cura"; }
-
-        UM.ConfirmRemoveDialog
-        {
-            id: confirmDialog
-            object: base.currentItem != null ? base.currentItem.name : ""
-            onYes:
-            {
-                var name = base.currentItem.name;
-                Cura.ContainerManager.removeQualityChanges(name)
-                if(Cura.MachineManager.activeQualityName == name)
-                {
-                    Cura.MachineManager.setActiveQuality(base.model.getItem(0).name)
-                }
-                objectList.currentIndex = -1 //Reset selection.
-            }
-        }
-
-        UM.RenameDialog
-        {
-            title: catalog.i18nc("@title:window", "Rename Profile")
-            id: renameDialog;
-            object: base.currentItem != null ? base.currentItem.name : ""
-            onAccepted:
-            {
-                Cura.ContainerManager.renameQualityChanges(base.currentItem.name, newName)
-                objectList.currentIndex = -1 //Reset selection.
-            }
-        }
-
-        // Dialog to request a name when creating a new profile
-        UM.RenameDialog
-        {
-            title: catalog.i18nc("@title:window", "Create Profile")
-            id: newNameDialog;
-            object: "<new name>";
-            onAccepted:
-            {
-                var selectedContainer = Cura.ContainerManager.createQualityChanges(newName);
-                base.selectContainer(selectedContainer);
-                objectList.currentIndex = -1 //Reset selection.
-            }
-        }
-
-        // Dialog to request a name when duplicating a new profile
-        UM.RenameDialog
-        {
-            title: catalog.i18nc("@title:window", "Duplicate Profile")
-            id: newDuplicateNameDialog;
-            object: "<new name>";
-            onAccepted:
-            {
-                var selectedContainer = Cura.ContainerManager.duplicateQualityOrQualityChanges(base.currentItem.name, newName);
-                base.selectContainer(selectedContainer);
-                objectList.currentIndex = -1 //Reset selection.
-            }
-        }
-
-        MessageDialog
-        {
-            id: messageDialog
-            title: catalog.i18nc("@window:title", "Import Profile");
-            standardButtons: StandardButton.Ok
-            modality: Qt.ApplicationModal
-        }
-
-        FileDialog
-        {
-            id: importDialog;
-            title: catalog.i18nc("@title:window", "Import Profile");
-            selectExisting: true;
-            nameFilters: base.model.getFileNameFilters("profile_reader")
-            folder: CuraApplication.getDefaultPath("dialog_profile_path")
-            onAccepted:
-            {
-                var result = Cura.ContainerManager.importProfile(fileUrl);
-                messageDialog.text = result.message
-                if(result.status == "ok")
-                {
-                    messageDialog.icon = StandardIcon.Information
-                }
-                else if(result.status == "duplicate")
-                {
-                    messageDialog.icon = StandardIcon.Warning
-                }
-                else
-                {
-                    messageDialog.icon = StandardIcon.Critical
-                }
-                messageDialog.open()
-                CuraApplication.setDefaultPath("dialog_profile_path", folder)
-            }
-        }
-
-        FileDialog
-        {
-            id: exportDialog;
-            title: catalog.i18nc("@title:window", "Export Profile");
-            selectExisting: false;
-            nameFilters: base.model.getFileNameFilters("profile_writer")
-            folder: CuraApplication.getDefaultPath("dialog_profile_path")
-            onAccepted:
-            {
-                var containers = Cura.ContainerManager.findInstanceContainers({"type": "quality_changes", "name": base.currentItem.name})
-                var result = Cura.ContainerManager.exportProfile(containers, fileUrl, selectedNameFilter)
-
-                if(result && result.status == "error")
-                {
-                    messageDialog.icon = StandardIcon.Critical
-                    messageDialog.text = result.message
-                    messageDialog.open()
-                }
-
-                // else pop-up Message thing from python code
-                CuraApplication.setDefaultPath("dialog_profile_path", folder)
-            }
         }
     }
 }

resources/qml/Settings/SettingView.qml

@@ -57,13 +57,13 @@ Item
             height: UM.Theme.getSize("setting_control").height
             anchors.left: globalProfileLabel.right
             anchors.right: parent.right
-            tooltip: Cura.MachineManager.activeQualityName
+            tooltip: Cura.MachineManager.activeQualityOrQualityChangesName
             style: UM.Theme.styles.sidebar_header_button
             activeFocusOnPress: true
             menu: ProfileMenu { }
 
             function generateActiveQualityText () {
-                var result = Cura.MachineManager.activeQualityName;
+                var result = Cura.MachineManager.activeQualityOrQualityChangesName;
 
                 if (Cura.MachineManager.isActiveQualitySupported) {
                     if (Cura.MachineManager.activeQualityLayerHeight > 0) {

resources/qml/SidebarAdvanced.qml

@@ -1,7 +1,7 @@
 // Copyright (c) 2015 Ultimaker B.V.
 // Cura is released under the terms of the LGPLv3 or higher.
 
-import QtQuick 2.7
+import QtQuick 2.8
 import QtQuick.Controls 2.0
 
 import "Settings"

resources/qml/SidebarHeader.qml

@@ -252,8 +252,18 @@ Column
         {
             id: materialSelection
 
-            text: Cura.MachineManager.activeMaterialName
+            property var currentRootMaterialName:
-            tooltip: Cura.MachineManager.activeMaterialName
+            {
+                var materials = Cura.MachineManager.currentRootMaterialName;
+                var materialName = "";
+                if (base.currentExtruderIndex in materials) {
+                    materialName = materials[base.currentExtruderIndex];
+                }
+                return materialName;
+            }
+
+            text: currentRootMaterialName
+            tooltip: currentRootMaterialName
             visible: Cura.MachineManager.hasMaterials
             enabled: !extrudersList.visible || base.currentExtruderIndex > -1
             height: UM.Theme.getSize("setting_control").height

resources/qml/SidebarSimple.qml

@@ -1,13 +1,13 @@
-// Copyright (c) 2017 Ultimaker B.V.
+// Copyright (c) 2018 Ultimaker B.V.
 // Cura is released under the terms of the LGPLv3 or higher.
 
-import QtQuick 2.7
+import QtQuick 2.8
 import QtQuick.Controls 1.4
 import QtQuick.Controls.Styles 1.4
 import QtQuick.Layouts 1.3
 
 import UM 1.2 as UM
-import Cura 1.2 as Cura
+import Cura 1.0 as Cura
 
 Item
 {
@@ -57,7 +57,10 @@ Item
                     interval: 50
                     running: false
                     repeat: false
-                    onTriggered: Cura.MachineManager.setActiveQuality(Cura.ProfilesModel.getItem(qualitySlider.value).id)
+                    onTriggered: {
+                        var item = Cura.QualityProfilesDropDownMenuModel.getItem(qualitySlider.value);
+                        Cura.MachineManager.activeQualityGroup = item.quality_group;
+                    }
                 }
 
                 Component.onCompleted: qualityModel.update()
@@ -102,14 +105,14 @@ Item
                         var availableMin = -1
                         var availableMax = -1
 
-                        for (var i = 0; i < Cura.ProfilesModel.rowCount(); i++) {
+                        for (var i = 0; i < Cura.QualityProfilesDropDownMenuModel.rowCount(); i++) {
-                            var qualityItem = Cura.ProfilesModel.getItem(i)
+                            var qualityItem = Cura.QualityProfilesDropDownMenuModel.getItem(i)
 
                             // Add each quality item to the UI quality model
                             qualityModel.append(qualityItem)
 
                             // Set selected value
-                            if (Cura.MachineManager.activeQualityType == qualityItem.metadata.quality_type) {
+                            if (Cura.MachineManager.activeQualityType == qualityItem.quality_type) {
 
                                 // set to -1 when switching to user created profile so all ticks are clickable
                                 if (Cura.SimpleModeSettingsManager.isProfileUserCreated) {
@@ -134,7 +137,7 @@ Item
 
                         // Set total available ticks for active slider part
                         if (availableMin != -1) {
-                            qualityModel.availableTotalTicks = availableMax - availableMin
+                            qualityModel.availableTotalTicks = availableMax - availableMin + 1
                         }
 
                         // Calculate slider values
@@ -161,11 +164,11 @@ Item
 
                     function reset () {
                         qualityModel.clear()
-                        qualityModel.availableTotalTicks = -1
+                        qualityModel.availableTotalTicks = 0
                         qualityModel.existingQualityProfile = 0
 
                         // check, the ticks count cannot be less than zero
-                        qualityModel.totalTicks = Math.max(0, Cura.ProfilesModel.rowCount() - 1)
+                        qualityModel.totalTicks = Math.max(0, Cura.QualityProfilesDropDownMenuModel.rowCount() - 1)
                     }
                 }
 
@@ -191,13 +194,13 @@ Item
                             anchors.verticalCenter: parent.verticalCenter
                             anchors.top: parent.top
                             anchors.topMargin: Math.round(UM.Theme.getSize("sidebar_margin").height / 2)
-                            color: (Cura.MachineManager.activeMachine != null && Cura.ProfilesModel.getItem(index).available) ? UM.Theme.getColor("quality_slider_available") : UM.Theme.getColor("quality_slider_unavailable")
+                            color: (Cura.MachineManager.activeMachine != null && Cura.QualityProfilesDropDownMenuModel.getItem(index).available) ? UM.Theme.getColor("quality_slider_available") : UM.Theme.getColor("quality_slider_unavailable")
                             text:
                             {
                                 var result = ""
                                 if(Cura.MachineManager.activeMachine != null)
                                 {
-                                    result = Cura.ProfilesModel.getItem(index).layer_height_without_unit
+                                    result = Cura.QualityProfilesDropDownMenuModel.getItem(index).layer_height
 
                                     if(result == undefined)
                                     {
@@ -262,7 +265,7 @@ Item
                         Rectangle
                         {
                             anchors.verticalCenter: parent.verticalCenter
-                            color: Cura.ProfilesModel.getItem(index).available ? UM.Theme.getColor("quality_slider_available") : UM.Theme.getColor("quality_slider_unavailable")
+                            color: Cura.QualityProfilesDropDownMenuModel.getItem(index).available ? UM.Theme.getColor("quality_slider_available") : UM.Theme.getColor("quality_slider_unavailable")
                             width: 1 * screenScaleFactor
                             height: 6 * screenScaleFactor
                             y: 0
@@ -270,32 +273,24 @@ Item
                         }
                     }
 
-                    Rectangle {
-                        id: disabledHandleButton
-                        visible: !qualitySlider.visible
-                        anchors.centerIn: parent
-                        color: UM.Theme.getColor("quality_slider_unavailable")
-                        implicitWidth: 10 * screenScaleFactor
-                        implicitHeight: implicitWidth
-                        radius: Math.round(width / 2)
-                    }
-
                     Slider
                     {
                         id: qualitySlider
                         height: UM.Theme.getSize("sidebar_margin").height
                         anchors.bottom: speedSlider.bottom
-                        enabled: qualityModel.availableTotalTicks > 0 && !Cura.SimpleModeSettingsManager.isProfileCustomized
+                        enabled: qualityModel.totalTicks > 0 && !Cura.SimpleModeSettingsManager.isProfileCustomized
-                        visible: qualityModel.totalTicks > 0
+                        visible: qualityModel.availableTotalTicks > 0
                         updateValueWhileDragging : false
 
                         minimumValue: qualityModel.qualitySliderAvailableMin >= 0 ? qualityModel.qualitySliderAvailableMin : 0
-                        maximumValue: qualityModel.qualitySliderAvailableMax >= 0 ? qualityModel.qualitySliderAvailableMax : 0
+                        // maximumValue must be greater than minimumValue to be able to see the handle. While the value is strictly
+                        // speaking not always correct, it seems to have the correct behavior (switching from 0 available to 1 available)
+                        maximumValue: qualityModel.qualitySliderAvailableMax >= 1 ? qualityModel.qualitySliderAvailableMax : 1
                         stepSize: 1
 
                         value: qualityModel.qualitySliderActiveIndex
 
-                        width: qualityModel.qualitySliderStepWidth * qualityModel.availableTotalTicks
+                        width: qualityModel.qualitySliderStepWidth * (qualityModel.availableTotalTicks - 1)
 
                         anchors.right: parent.right
                         anchors.rightMargin: qualityModel.qualitySliderMarginRight
@@ -373,7 +368,7 @@ Item
 
                     text: catalog.i18nc("@label", "Slower")
                     font: UM.Theme.getFont("default")
-                    color: (qualityModel.availableTotalTicks > 0) ? UM.Theme.getColor("quality_slider_available") : UM.Theme.getColor("quality_slider_unavailable")
+                    color: (qualityModel.availableTotalTicks > 1) ? UM.Theme.getColor("quality_slider_available") : UM.Theme.getColor("quality_slider_unavailable")
                     horizontalAlignment: Text.AlignLeft
                 }
 
@@ -384,7 +379,7 @@ Item
 
                     text: catalog.i18nc("@label", "Faster")
                     font: UM.Theme.getFont("default")
-                    color: (qualityModel.availableTotalTicks > 0) ? UM.Theme.getColor("quality_slider_available") : UM.Theme.getColor("quality_slider_unavailable")
+                    color: (qualityModel.availableTotalTicks > 1) ? UM.Theme.getColor("quality_slider_available") : UM.Theme.getColor("quality_slider_unavailable")
                     horizontalAlignment: Text.AlignRight
                 }
 
@@ -408,9 +403,10 @@ Item
                         // if the current profile is user-created, switch to a built-in quality
                         if (Cura.SimpleModeSettingsManager.isProfileUserCreated)
                         {
-                            if (Cura.ProfilesModel.rowCount() > 0)
+                            if (Cura.QualityProfilesDropDownMenuModel.rowCount() > 0)
                             {
-                                Cura.MachineManager.setActiveQuality(Cura.ProfilesModel.getItem(0).id)
+                                var item = Cura.QualityProfilesDropDownMenuModel.getItem(0);
+                                Cura.MachineManager.activeQualityGroup = item.quality_group;
                             }
                         }
                         if (Cura.SimpleModeSettingsManager.isProfileCustomized)

resources/qml/WorkspaceSummaryDialog.qml

@@ -101,7 +101,7 @@ UM.Dialog
                 }
                 Label
                 {
-                    text: Cura.MachineManager.activeDefinitionName
+                    text: Cura.MachineManager.activeMachine.definition.name
                     width: (parent.width / 3) | 0
                 }
             }
@@ -148,7 +148,7 @@ UM.Dialog
 
             Repeater
             {
-                model: Cura.MachineManager.activeMaterialNames
+                model: Cura.MachineManager.currentExtruderPositions
                 delegate: Column
                 {
                     Item // Spacer
@@ -158,7 +158,7 @@ UM.Dialog
                     }
                     Label
                     {
-                        text: catalog.i18nc("@action:label", "Extruder %1").arg(index+1)
+                        text: catalog.i18nc("@action:label", "Extruder %1").arg(modelData)
                     }
                     height: childrenRect.height
                     width: parent.width
@@ -173,7 +173,7 @@ UM.Dialog
                         }
                         Label
                         {
-                            text: Cura.MachineManager.activeVariantNames[index] + ", " + modelData
+                            text: Cura.MachineManager.activeVariantNames[modelData] + ", " + Cura.MachineManager.currentRootMaterialName[modelData]
                             width: (parent.width / 3) | 0
                         }
                     }
@@ -217,7 +217,7 @@ UM.Dialog
                 }
                 Label
                 {
-                    text: Cura.MachineManager.activeQualityName
+                    text: Cura.MachineManager.activeQualityOrQualityChangesName
                     width: (parent.width / 3) | 0
                 }
 

resources/quality/abax_pri3/apri3_pla_fast.inst.cfg

@@ -4,11 +4,11 @@ name = Fine
 definition = abax_pri3
 
 [metadata]
-type = quality
-material = generic_pla
-weight = -1
-quality_type = normal
 setting_version = 4
+type = quality
+quality_type = normal
+weight = -1
+material = generic_pla
 
 [values]
 layer_height = 0.2