Merge remote-tracking branch 'origin/master' into shader_optimization

cura/API/Account.py

@@ -29,6 +29,7 @@ i18n_catalog = i18nCatalog("cura")
 class Account(QObject):
     # Signal emitted when user logged in or out.
     loginStateChanged = pyqtSignal(bool)
+    accessTokenChanged = pyqtSignal()
 
     def __init__(self, application: "CuraApplication", parent = None) -> None:
         super().__init__(parent)
@@ -59,8 +60,12 @@ class Account(QObject):
         self._authorization_service.initialize(self._application.getPreferences())
         self._authorization_service.onAuthStateChanged.connect(self._onLoginStateChanged)
         self._authorization_service.onAuthenticationError.connect(self._onLoginStateChanged)
+        self._authorization_service.accessTokenChanged.connect(self._onAccessTokenChanged)
         self._authorization_service.loadAuthDataFromPreferences()
 
+    def _onAccessTokenChanged(self):
+        self.accessTokenChanged.emit()
+
     ## Returns a boolean indicating whether the given authentication is applied against staging or not.
     @property
     def is_staging(self) -> bool:
@@ -105,7 +110,7 @@ class Account(QObject):
             return None
         return user_profile.profile_image_url
 
-    @pyqtProperty(str, notify=loginStateChanged)
+    @pyqtProperty(str, notify=accessTokenChanged)
     def accessToken(self) -> Optional[str]:
         return self._authorization_service.getAccessToken()
 

cura/API/Machines.py

@@ -0,0 +1,139 @@
+# Copyright (c) 2019 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from typing import Optional, Dict,  List, TYPE_CHECKING, Any
+from PyQt5.QtCore import QObject, pyqtSignal, pyqtSlot, pyqtProperty
+from UM.i18n import i18nCatalog
+from UM.Logger import Logger
+if TYPE_CHECKING:
+    from cura.CuraApplication import CuraApplication
+    from cura.PrinterOutput.PrinterOutputDevice import PrinterOutputDevice
+
+i18n_catalog = i18nCatalog("cura")
+
+##  The account API provides a version-proof bridge to use Ultimaker Accounts
+#
+#   Usage:
+#       ```
+#       from cura.API import CuraAPI
+#       api = CuraAPI()
+#       api.machines.addOutputDeviceToCurrentMachine()
+#       ```
+
+##  Since Cura doesn't have a machine class, we're going to make a fake one to make our lives a
+#   little bit easier.
+class Machine():
+    def __init__(self) -> None:
+        self.hostname = "" # type: str
+        self.group_id = "" # type: str
+        self.group_name = "" # type: str
+        self.um_network_key = "" # type: str
+        self.configuration = {} # type: Dict[str, Any]
+        self.connection_types = [] # type: List[int]
+
+class Machines(QObject):
+
+    def __init__(self, application: "CuraApplication", parent = None) -> None:
+        super().__init__(parent)
+        self._application = application
+
+    @pyqtSlot(result="QVariantMap")
+    def getCurrentMachine(self) -> Machine:
+        fake_machine = Machine() # type: Machine
+        global_stack = self._application.getGlobalContainerStack()
+        if global_stack:
+            metadata = global_stack.getMetaData()
+            if "group_id" in metadata:
+                fake_machine.group_id = global_stack.getMetaDataEntry("group_id")
+            if "group_name" in metadata:
+                fake_machine.group_name = global_stack.getMetaDataEntry("group_name")
+            if "um_network_key" in metadata:
+                fake_machine.um_network_key = global_stack.getMetaDataEntry("um_network_key")
+
+            fake_machine.connection_types = global_stack.configuredConnectionTypes
+            
+        return fake_machine
+
+    ##  Set the current machine's friendy name.
+    #   This is the same as "group name" since we use "group" and "current machine" interchangeably.
+    #   TODO: Maybe make this "friendly name" to distinguish from "hostname"?
+    @pyqtSlot(str)
+    def setCurrentMachineGroupName(self, group_name: str) -> None:
+        Logger.log("d", "Attempting to set the group name of the active machine to %s", group_name)
+        global_stack = self._application.getGlobalContainerStack()
+        if global_stack:
+            # Update a GlobalStacks in the same group with the new group name.
+            group_id = global_stack.getMetaDataEntry("group_id")
+            machine_manager = self._application.getMachineManager()
+            for machine in machine_manager.getMachinesInGroup(group_id):
+                machine.setMetaDataEntry("group_name", group_name)
+
+            # Set the default value for "hidden", which is used when you have a group with multiple types of printers
+            global_stack.setMetaDataEntry("hidden", False)
+
+    ##  Set the current machine's configuration from an (optional) output device.
+    #   If no output device is given, the first one available on the machine will be used.
+    #   NOTE: Group and machine are used interchangeably.
+    #   NOTE: This doesn't seem to be used anywhere. Maybe delete?
+    @pyqtSlot(QObject)
+    def updateCurrentMachineConfiguration(self, output_device: Optional["PrinterOutputDevice"]) -> None:
+
+        if output_device is None:
+            machine_manager = self._application.getMachineManager()
+            output_device = machine_manager.printerOutputDevices[0]
+        
+        hotend_ids = output_device.hotendIds
+        for index in range(len(hotend_ids)):
+            output_device.hotendIdChanged.emit(index, hotend_ids[index])
+        
+        material_ids = output_device.materialIds
+        for index in range(len(material_ids)):
+            output_device.materialIdChanged.emit(index, material_ids[index])
+
+    ##  Add an output device to the current machine.
+    #   In practice, this means:
+    #   - Setting the output device's network key in the current machine's metadata
+    #   - Adding the output device's connection type to the current machine's configured connection
+    #     types.
+    #   TODO: CHANGE TO HOSTNAME
+    @pyqtSlot(QObject)
+    def addOutputDeviceToCurrentMachine(self, output_device: "PrinterOutputDevice") -> None:
+        if not output_device:
+            return
+        Logger.log("d",
+            "Attempting to set the network key of the active machine to %s",
+            output_device.key)
+        global_stack = self._application.getGlobalContainerStack()
+        if not global_stack:
+            return
+        metadata = global_stack.getMetaData()
+
+        # Global stack already had a connection, but it's changed.
+        if "um_network_key" in metadata: 
+            old_network_key = metadata["um_network_key"]
+
+            # Since we might have a bunch of hidden stacks, we also need to change it there.
+            metadata_filter = {"um_network_key": old_network_key}
+            containers = self._application.getContainerRegistry().findContainerStacks(
+                type = "machine", **metadata_filter)
+            for container in containers:
+                container.setMetaDataEntry("um_network_key", output_device.key)
+
+                # Delete old authentication data.
+                Logger.log("d", "Removing old authentication id %s for device %s",
+                    global_stack.getMetaDataEntry("network_authentication_id", None),
+                    output_device.key)
+
+                container.removeMetaDataEntry("network_authentication_id")
+                container.removeMetaDataEntry("network_authentication_key")
+
+                # Ensure that these containers do know that they are configured for the given
+                # connection type (can be more than one type; e.g. LAN & Cloud)
+                container.addConfiguredConnectionType(output_device.connectionType.value)
+
+        else:  # Global stack didn't have a connection yet, configure it.
+            global_stack.setMetaDataEntry("um_network_key", output_device.key)
+            global_stack.addConfiguredConnectionType(output_device.connectionType.value)
+
+        return None
+    

cura/API/__init__.py

@@ -6,6 +6,7 @@ from PyQt5.QtCore import QObject, pyqtProperty
 
 from cura.API.Backups import Backups
 from cura.API.Interface import Interface
+from cura.API.Machines import Machines
 from cura.API.Account import Account
 
 if TYPE_CHECKING:
@@ -44,6 +45,9 @@ class CuraAPI(QObject):
         # Backups API
         self._backups = Backups(self._application)
 
+        # Machines API
+        self._machines = Machines(self._application)
+
         # Interface API
         self._interface = Interface(self._application)
 
@@ -58,6 +62,10 @@ class CuraAPI(QObject):
     def backups(self) -> "Backups":
         return self._backups
 
+    @pyqtProperty(QObject)
+    def machines(self) -> "Machines":
+        return self._machines
+
     @property
     def interface(self) -> "Interface":
         return self._interface

cura/AutoSave.py

@@ -19,6 +19,7 @@ class AutoSave:
         self._change_timer.setInterval(self._application.getPreferences().getValue("cura/autosave_delay"))
         self._change_timer.setSingleShot(True)
 
+        self._enabled = True
         self._saving = False
 
     def initialize(self):
@@ -32,6 +33,13 @@ class AutoSave:
         if not self._saving:
             self._change_timer.start()
 
+    def setEnabled(self, enabled: bool) -> None:
+        self._enabled = enabled
+        if self._enabled:
+            self._change_timer.start()
+        else:
+            self._change_timer.stop()
+
     def _onGlobalStackChanged(self):
         if self._global_stack:
             self._global_stack.propertyChanged.disconnect(self._triggerTimer)

cura/Backups/BackupsManager.py

@@ -51,8 +51,8 @@ class BackupsManager:
     ##  Here we try to disable the auto-save plug-in as it might interfere with
     #   restoring a back-up.
     def _disableAutoSave(self) -> None:
-        self._application.setSaveDataEnabled(False)
+        self._application.getAutoSave().setEnabled(False)
 
     ##  Re-enable auto-save after we're done.
     def _enableAutoSave(self) -> None:
-        self._application.setSaveDataEnabled(True)
+        self._application.getAutoSave().setEnabled(True)

cura/CuraApplication.py

@@ -23,6 +23,7 @@ from UM.Platform import Platform
 from UM.PluginError import PluginNotFoundError
 from UM.Resources import Resources
 from UM.Preferences import Preferences
+from UM.Qt.Bindings import MainWindow
 from UM.Qt.QtApplication import QtApplication  # The class we're inheriting from.
 import UM.Util
 from UM.View.SelectionPass import SelectionPass  # For typing.
@@ -116,6 +117,8 @@ from cura.UI.AddPrinterPagesModel import AddPrinterPagesModel
 from cura.UI.WelcomePagesModel import WelcomePagesModel
 from cura.UI.WhatsNewPagesModel import WhatsNewPagesModel
 
+from cura.Utils.NetworkingUtil import NetworkingUtil
+
 from .SingleInstance import SingleInstance
 from .AutoSave import AutoSave
 from . import PlatformPhysics
@@ -216,7 +219,7 @@ class CuraApplication(QtApplication):
 
         self._machine_settings_manager = MachineSettingsManager(self, parent = self)
 
-        self._discovered_printer_model = DiscoveredPrintersModel(parent = self)
+        self._discovered_printer_model = DiscoveredPrintersModel(self, parent = self)
         self._first_start_machine_actions_model = FirstStartMachineActionsModel(self, parent = self)
         self._welcome_pages_model = WelcomePagesModel(self, parent = self)
         self._add_printer_pages_model = AddPrinterPagesModel(self, parent = self)
@@ -258,7 +261,6 @@ class CuraApplication(QtApplication):
 
         # Backups
         self._auto_save = None
-        self._save_data_enabled = True
 
         from cura.Settings.CuraContainerRegistry import CuraContainerRegistry
         self._container_registry_class = CuraContainerRegistry
@@ -523,6 +525,10 @@ class CuraApplication(QtApplication):
         preferences.addPreference("cura/use_multi_build_plate", False)
         preferences.addPreference("view/settings_list_height", 400)
         preferences.addPreference("view/settings_visible", False)
+        preferences.addPreference("view/settings_xpos", 0)
+        preferences.addPreference("view/settings_ypos", 56)
+        preferences.addPreference("view/colorscheme_xpos", 0)
+        preferences.addPreference("view/colorscheme_ypos", 56)
         preferences.addPreference("cura/currency", "€")
         preferences.addPreference("cura/material_settings", "{}")
 
@@ -669,12 +675,9 @@ class CuraApplication(QtApplication):
             self._message_box_callback = None
             self._message_box_callback_arguments = []
 
-    def setSaveDataEnabled(self, enabled: bool) -> None:
-        self._save_data_enabled = enabled
-
     # Cura has multiple locations where instance containers need to be saved, so we need to handle this differently.
     def saveSettings(self):
-        if not self.started or not self._save_data_enabled:
+        if not self.started:
             # Do not do saving during application start or when data should not be saved on quit.
             return
         ContainerRegistry.getInstance().saveDirtyContainers()
@@ -1027,6 +1030,8 @@ class CuraApplication(QtApplication):
         qmlRegisterSingletonType(SimpleModeSettingsManager, "Cura", 1, 0, "SimpleModeSettingsManager", self.getSimpleModeSettingsManager)
         qmlRegisterSingletonType(MachineActionManager.MachineActionManager, "Cura", 1, 0, "MachineActionManager", self.getMachineActionManager)
 
+        qmlRegisterType(NetworkingUtil, "Cura", 1, 5, "NetworkingUtil")
+
         qmlRegisterType(WelcomePagesModel, "Cura", 1, 0, "WelcomePagesModel")
         qmlRegisterType(WhatsNewPagesModel, "Cura", 1, 0, "WhatsNewPagesModel")
         qmlRegisterType(AddPrinterPagesModel, "Cura", 1, 0, "AddPrinterPagesModel")
@@ -1786,3 +1791,19 @@ class CuraApplication(QtApplication):
         # Only show the what's new dialog if there's no machine and we have just upgraded
         show_whatsnew_only = has_active_machine and has_app_just_upgraded
         return show_whatsnew_only
+
+    @pyqtSlot(result = int)
+    def appWidth(self) -> int:
+        main_window = QtApplication.getInstance().getMainWindow()
+        if main_window:
+            return main_window.width()
+        else:
+            return 0
+
+    @pyqtSlot(result = int)
+    def appHeight(self) -> int:
+        main_window = QtApplication.getInstance().getMainWindow()
+        if main_window:
+            return main_window.height()
+        else:
+            return 0

cura/CuraView.py

@@ -3,8 +3,11 @@
 
 from PyQt5.QtCore import pyqtProperty, QUrl
 
+from UM.Resources import Resources
 from UM.View.View import View
 
+from cura.CuraApplication import CuraApplication
+
 
 # Since Cura has a few pre-defined "space claims" for the locations of certain components, we've provided some structure
 # to indicate this.
@@ -12,13 +15,20 @@ from UM.View.View import View
 #   the stageMenuComponent returns an item that should be used somehwere in the stage menu. It's up to the active stage
 #   to actually do something with this.
 class CuraView(View):
-    def __init__(self, parent = None) -> None:
+    def __init__(self, parent = None, use_empty_menu_placeholder: bool = False) -> None:
         super().__init__(parent)
 
+        self._empty_menu_placeholder_url = QUrl(Resources.getPath(CuraApplication.ResourceTypes.QmlFiles,
+                                                                  "EmptyViewMenuComponent.qml"))
+        self._use_empty_menu_placeholder = use_empty_menu_placeholder
+
     @pyqtProperty(QUrl, constant = True)
     def mainComponent(self) -> QUrl:
         return self.getDisplayComponent("main")
 
     @pyqtProperty(QUrl, constant = True)
     def stageMenuComponent(self) -> QUrl:
-        return self.getDisplayComponent("menu")
+        url = self.getDisplayComponent("menu")
+        if not url.toString() and self._use_empty_menu_placeholder:
+            url = self._empty_menu_placeholder_url
+        return url

cura/LayerPolygon.py

@@ -20,7 +20,7 @@ class LayerPolygon:
     MoveCombingType = 8
     MoveRetractionType = 9
     SupportInterfaceType = 10
-    PrimeTower = 11
+    PrimeTowerType = 11
     __number_of_types = 12
 
     __jump_map = numpy.logical_or(numpy.logical_or(numpy.arange(__number_of_types) == NoneType, numpy.arange(__number_of_types) == MoveCombingType), numpy.arange(__number_of_types) == MoveRetractionType)
@@ -245,7 +245,7 @@ class LayerPolygon:
                 theme.getColor("layerview_move_combing").getRgbF(), # MoveCombingType
                 theme.getColor("layerview_move_retraction").getRgbF(), # MoveRetractionType
                 theme.getColor("layerview_support_interface").getRgbF(),  # SupportInterfaceType
-                theme.getColor("layerview_prime_tower").getRgbF()
+                theme.getColor("layerview_prime_tower").getRgbF()   # PrimeTowerType
             ])
 
         return cls.__color_map

cura/MachineAction.py

@@ -2,8 +2,9 @@
 # Cura is released under the terms of the LGPLv3 or higher.
 
 import os
+from typing import Optional
 
-from PyQt5.QtCore import QObject, pyqtSlot, pyqtProperty, pyqtSignal
+from PyQt5.QtCore import QObject, QUrl, pyqtSlot, pyqtProperty, pyqtSignal
 
 from UM.Logger import Logger
 from UM.PluginObject import PluginObject
@@ -72,18 +73,26 @@ class MachineAction(QObject, PluginObject):
         return self._finished
 
     ##  Protected helper to create a view object based on provided QML.
-    def _createViewFromQML(self) -> None:
+    def _createViewFromQML(self) -> Optional["QObject"]:
         plugin_path = PluginRegistry.getInstance().getPluginPath(self.getPluginId())
         if plugin_path is None:
             Logger.log("e", "Cannot create QML view: cannot find plugin path for plugin [%s]", self.getPluginId())
-            return
+            return None
         path = os.path.join(plugin_path, self._qml_url)
 
         from cura.CuraApplication import CuraApplication
-        self._view = CuraApplication.getInstance().createQmlComponent(path, {"manager": self})
+        view = CuraApplication.getInstance().createQmlComponent(path, {"manager": self})
+        return view
 
-    @pyqtProperty(QObject, constant = True)
-    def displayItem(self):
-        if not self._view:
-            self._createViewFromQML()
-        return self._view
+    @pyqtProperty(QUrl, constant = True)
+    def qmlPath(self) -> "QUrl":
+        plugin_path = PluginRegistry.getInstance().getPluginPath(self.getPluginId())
+        if plugin_path is None:
+            Logger.log("e", "Cannot create QML view: cannot find plugin path for plugin [%s]", self.getPluginId())
+            return QUrl("")
+        path = os.path.join(plugin_path, self._qml_url)
+        return QUrl.fromLocalFile(path)
+
+    @pyqtSlot(result = QObject)
+    def getDisplayItem(self) -> Optional["QObject"]:
+        return self._createViewFromQML()

cura/Machines/MaterialManager.py

@@ -103,6 +103,8 @@ class MaterialManager(QObject):
                 continue
 
             root_material_id = material_metadata.get("base_file", "")
+            if root_material_id not in material_metadatas: #Not a registered material profile. Don't store this in the look-up tables.
+                continue
             if root_material_id not in self._material_group_map:
                 self._material_group_map[root_material_id] = MaterialGroup(root_material_id, MaterialNode(material_metadatas[root_material_id]))
                 self._material_group_map[root_material_id].is_read_only = self._container_registry.isReadOnly(root_material_id)

cura/Machines/Models/DiscoveredPrintersModel.py

@@ -3,15 +3,17 @@
 
 from typing import Callable, Dict, List, Optional, TYPE_CHECKING
 
-from PyQt5.QtCore import pyqtSlot, pyqtProperty, pyqtSignal, QObject
+from PyQt5.QtCore import pyqtSlot, pyqtProperty, pyqtSignal, QObject, QTimer
 
 from UM.i18n import i18nCatalog
 from UM.Logger import Logger
 from UM.Util import parseBool
+from UM.OutputDevice.OutputDeviceManager import ManualDeviceAdditionAttempt
 
 if TYPE_CHECKING:
     from PyQt5.QtCore import QObject
-
+    from UM.OutputDevice.OutputDevicePlugin import OutputDevicePlugin
+    from cura.CuraApplication import CuraApplication
     from cura.PrinterOutput.NetworkedPrinterOutputDevice import NetworkedPrinterOutputDevice
 
 
@@ -45,6 +47,10 @@ class DiscoveredPrinter(QObject):
             self._name = name
             self.nameChanged.emit()
 
+    @pyqtProperty(str, constant = True)
+    def address(self) -> str:
+        return self._ip_address
+
     machineTypeChanged = pyqtSignal()
 
     @pyqtProperty(str, notify = machineTypeChanged)
@@ -60,7 +66,14 @@ class DiscoveredPrinter(QObject):
     @pyqtProperty(str, notify = machineTypeChanged)
     def readableMachineType(self) -> str:
         from cura.CuraApplication import CuraApplication
-        readable_type = CuraApplication.getInstance().getMachineManager().getMachineTypeNameFromId(self._machine_type)
+        machine_manager = CuraApplication.getInstance().getMachineManager()
+        # In ClusterUM3OutputDevice, when it updates a printer information, it updates the machine type using the field
+        # "machine_variant", and for some reason, it's not the machine type ID/codename/... but a human-readable string
+        # like "Ultimaker 3". The code below handles this case.
+        if machine_manager.hasHumanReadableMachineTypeName(self._machine_type):
+            readable_type = self._machine_type
+        else:
+            readable_type = machine_manager.getMachineTypeNameFromId(self._machine_type)
             if not readable_type:
                 readable_type = catalog.i18nc("@label", "Unknown")
         return readable_type
@@ -68,7 +81,11 @@ class DiscoveredPrinter(QObject):
     @pyqtProperty(bool, notify = machineTypeChanged)
     def isUnknownMachineType(self) -> bool:
         from cura.CuraApplication import CuraApplication
-        readable_type = CuraApplication.getInstance().getMachineManager().getMachineTypeNameFromId(self._machine_type)
+        machine_manager = CuraApplication.getInstance().getMachineManager()
+        if machine_manager.hasHumanReadableMachineTypeName(self._machine_type):
+            readable_type = self._machine_type
+        else:
+            readable_type = machine_manager.getMachineTypeNameFromId(self._machine_type)
         return not readable_type
 
     @pyqtProperty(QObject, constant = True)
@@ -94,14 +111,88 @@ class DiscoveredPrinter(QObject):
 #
 class DiscoveredPrintersModel(QObject):
 
-    def __init__(self, parent: Optional["QObject"] = None) -> None:
+    def __init__(self, application: "CuraApplication", parent: Optional["QObject"] = None) -> None:
         super().__init__(parent)
 
+        self._application = application
         self._discovered_printer_by_ip_dict = dict()  # type: Dict[str, DiscoveredPrinter]
 
+        self._plugin_for_manual_device = None  # type: Optional[OutputDevicePlugin]
+        self._manual_device_address = ""
+
+        self._manual_device_request_timeout_in_seconds = 5  # timeout for adding a manual device in seconds
+        self._manual_device_request_timer = QTimer()
+        self._manual_device_request_timer.setInterval(self._manual_device_request_timeout_in_seconds * 1000)
+        self._manual_device_request_timer.setSingleShot(True)
+        self._manual_device_request_timer.timeout.connect(self._onManualRequestTimeout)
+
     discoveredPrintersChanged = pyqtSignal()
 
-    @pyqtProperty(list, notify = discoveredPrintersChanged)
+    @pyqtSlot(str)
+    def checkManualDevice(self, address: str) -> None:
+        if self.hasManualDeviceRequestInProgress:
+            Logger.log("i", "A manual device request for address [%s] is still in progress, do nothing",
+                       self._manual_device_address)
+            return
+
+        priority_order = [
+            ManualDeviceAdditionAttempt.PRIORITY,
+            ManualDeviceAdditionAttempt.POSSIBLE,
+        ]  # type: List[ManualDeviceAdditionAttempt]
+
+        all_plugins_dict = self._application.getOutputDeviceManager().getAllOutputDevicePlugins()
+
+        can_add_manual_plugins = [item for item in filter(
+            lambda plugin_item: plugin_item.canAddManualDevice(address) in priority_order,
+            all_plugins_dict.values())]
+
+        if not can_add_manual_plugins:
+            Logger.log("d", "Could not find a plugin to accept adding %s manually via address.", address)
+            return
+
+        plugin = max(can_add_manual_plugins, key = lambda p: priority_order.index(p.canAddManualDevice(address)))
+        self._plugin_for_manual_device = plugin
+        self._plugin_for_manual_device.addManualDevice(address, callback = self._onManualDeviceRequestFinished)
+        self._manual_device_address = address
+        self._manual_device_request_timer.start()
+        self.hasManualDeviceRequestInProgressChanged.emit()
+
+    @pyqtSlot()
+    def cancelCurrentManualDeviceRequest(self) -> None:
+        self._manual_device_request_timer.stop()
+
+        if self._manual_device_address:
+            if self._plugin_for_manual_device is not None:
+                self._plugin_for_manual_device.removeManualDevice(self._manual_device_address, address = self._manual_device_address)
+            self._manual_device_address = ""
+            self._plugin_for_manual_device = None
+            self.hasManualDeviceRequestInProgressChanged.emit()
+            self.manualDeviceRequestFinished.emit(False)
+
+    def _onManualRequestTimeout(self) -> None:
+        Logger.log("w", "Manual printer [%s] request timed out. Cancel the current request.", self._manual_device_address)
+        self.cancelCurrentManualDeviceRequest()
+
+    hasManualDeviceRequestInProgressChanged = pyqtSignal()
+
+    @pyqtProperty(bool, notify = hasManualDeviceRequestInProgressChanged)
+    def hasManualDeviceRequestInProgress(self) -> bool:
+        return self._manual_device_address != ""
+
+    manualDeviceRequestFinished = pyqtSignal(bool, arguments = ["success"])
+
+    def _onManualDeviceRequestFinished(self, success: bool, address: str) -> None:
+        self._manual_device_request_timer.stop()
+        if address == self._manual_device_address:
+            self._manual_device_address = ""
+            self.hasManualDeviceRequestInProgressChanged.emit()
+            self.manualDeviceRequestFinished.emit(success)
+
+    @pyqtProperty("QVariantMap", notify = discoveredPrintersChanged)
+    def discoveredPrintersByAddress(self) -> Dict[str, DiscoveredPrinter]:
+        return self._discovered_printer_by_ip_dict
+
+    @pyqtProperty("QVariantList", notify = discoveredPrintersChanged)
     def discoveredPrinters(self) -> List["DiscoveredPrinter"]:
         item_list = list(
             x for x in self._discovered_printer_by_ip_dict.values() if not parseBool(x.device.getProperty("temporary")))
@@ -157,11 +248,3 @@ class DiscoveredPrintersModel(QObject):
     @pyqtSlot("QVariant")
     def createMachineFromDiscoveredPrinter(self, discovered_printer: "DiscoveredPrinter") -> None:
         discovered_printer.create_callback(discovered_printer.getKey())
-
-    @pyqtSlot(str)
-    def createMachineFromDiscoveredPrinterAddress(self, ip_address: str) -> None:
-        if ip_address not in self._discovered_printer_by_ip_dict:
-            Logger.log("i", "Key [%s] does not exist in the discovered printers list.", ip_address)
-            return
-
-        self.createMachineFromDiscoveredPrinter(self._discovered_printer_by_ip_dict[ip_address])

cura/Machines/Models/FirstStartMachineActionsModel.py

@@ -35,6 +35,8 @@ class FirstStartMachineActionsModel(ListModel):
         self._application = application
         self._application.initializationFinished.connect(self._initialize)
 
+        self._previous_global_stack = None
+
     def _initialize(self) -> None:
         self._application.getMachineManager().globalContainerChanged.connect(self._update)
         self._update()
@@ -86,13 +88,19 @@ class FirstStartMachineActionsModel(ListModel):
             self.setItems([])
             return
 
+        # Do not update if the machine has not been switched. This can cause the SettingProviders on the Machine
+        # Setting page to do a force update, but they can use potential outdated cached values.
+        if self._previous_global_stack is not None and global_stack.getId() == self._previous_global_stack.getId():
+            return
+        self._previous_global_stack = global_stack
+
         definition_id = global_stack.definition.getId()
         first_start_actions = self._application.getMachineActionManager().getFirstStartActions(definition_id)
 
         item_list = []
         for item in first_start_actions:
             item_list.append({"title": item.label,
-                              "content": item.displayItem,
+                              "content": item.getDisplayItem(),
                               "action": item,
                               })
             item.reset()

cura/Machines/Models/GlobalStacksModel.py

@@ -5,6 +5,7 @@ from PyQt5.QtCore import Qt, QTimer
 
 from UM.Qt.ListModel import ListModel
 from UM.i18n import i18nCatalog
+from UM.Util import parseBool
 
 from cura.PrinterOutput.PrinterOutputDevice import ConnectionType
 from cura.Settings.CuraContainerRegistry import CuraContainerRegistry
@@ -54,7 +55,6 @@ class GlobalStacksModel(ListModel):
         items = []
 
         container_stacks = CuraContainerRegistry.getInstance().findContainerStacks(type = "machine")
-
         for container_stack in container_stacks:
             has_remote_connection = False
 
@@ -62,7 +62,7 @@ class GlobalStacksModel(ListModel):
                 has_remote_connection |= connection_type in [ConnectionType.NetworkConnection.value,
                                                              ConnectionType.CloudConnection.value]
 
-            if container_stack.getMetaDataEntry("hidden", False) in ["True", True]:
+            if parseBool(container_stack.getMetaDataEntry("hidden", False)):
                 continue
 
             section_name = "Network enabled printers" if has_remote_connection else "Local printers"
@@ -73,5 +73,5 @@ class GlobalStacksModel(ListModel):
                           "hasRemoteConnection": has_remote_connection,
                           "metadata": container_stack.getMetaData().copy(),
                           "discoverySource": section_name})
-        items.sort(key = lambda i: not i["hasRemoteConnection"])
+        items.sort(key = lambda i: (not i["hasRemoteConnection"], i["name"]))
         self.setItems(items)

cura/OAuth2/AuthorizationService.py

@@ -34,6 +34,8 @@ class AuthorizationService:
     # Emit signal when authentication failed.
     onAuthenticationError = Signal()
 
+    accessTokenChanged = Signal()
+
     def __init__(self, settings: "OAuth2Settings", preferences: Optional["Preferences"] = None) -> None:
         self._settings = settings
         self._auth_helpers = AuthorizationHelpers(settings)
@@ -99,7 +101,9 @@ class AuthorizationService:
             Logger.log("w", "Unable to use the refresh token to get a new access token.")
             # The token could not be refreshed using the refresh token. We should login again.
             return None
-
+        # Ensure it gets stored as otherwise we only have it in memory. The stored refresh token has been deleted
+        # from the server already.
+        self._storeAuthData(self._auth_data)
         return self._auth_helpers.parseJWT(self._auth_data.access_token)
 
     ##  Get the access token as provided by the repsonse data.
@@ -128,6 +132,7 @@ class AuthorizationService:
             self._storeAuthData(response)
             self.onAuthStateChanged.emit(logged_in = True)
         else:
+            Logger.log("w", "Failed to get a new access token from the server.")
             self.onAuthStateChanged.emit(logged_in = False)
 
     ##  Delete the authentication data that we have stored locally (eg; logout)
@@ -198,6 +203,7 @@ class AuthorizationService:
 
     ##  Store authentication data in preferences.
     def _storeAuthData(self, auth_data: Optional[AuthenticationResponse] = None) -> None:
+        Logger.log("d", "Attempting to store the auth data")
         if self._preferences is None:
             Logger.log("e", "Unable to save authentication data, since no preference has been set!")
             return
@@ -210,6 +216,8 @@ class AuthorizationService:
             self._user_profile = None
             self._preferences.resetPreference(self._settings.AUTH_DATA_PREFERENCE_KEY)
 
+        self.accessTokenChanged.emit()
+
     def _onMessageActionTriggered(self, _, action):
         if action == "retry":
             self.loadAuthDataFromPreferences()

cura/PrinterOutput/Models/ExtruderConfigurationModel.py

@@ -62,7 +62,24 @@ class ExtruderConfigurationModel(QObject):
         return " ".join(message_chunks)
 
     def __eq__(self, other) -> bool:
-        return hash(self) == hash(other)
+        if not isinstance(other, ExtruderConfigurationModel):
+            return False
+
+        if self._position != other.position:
+            return False
+        # Empty materials should be ignored for comparison
+        if self.activeMaterial is not None and other.activeMaterial is not None:
+            if self.activeMaterial.guid != other.activeMaterial.guid:
+                if self.activeMaterial.guid != "" and other.activeMaterial.guid != "":
+                    return False
+                else:
+                    # At this point there is no material, so it doesn't matter what the hotend is.
+                    return True
+
+        if self.hotendID != other.hotendID:
+            return False
+
+        return True
 
     #   Calculating a hash function using the position of the extruder, the material GUID and the hotend id to check if is
     #   unique within a set

cura/PrinterOutput/Models/PrinterConfigurationModel.py

@@ -71,7 +71,23 @@ class PrinterConfigurationModel(QObject):
         return "\n".join(message_chunks)
 
     def __eq__(self, other):
-        return hash(self) == hash(other)
+        if not isinstance(other, PrinterConfigurationModel):
+            return False
+
+        if self.printerType != other.printerType:
+            return False
+
+        if self.buildplateConfiguration != other.buildplateConfiguration:
+            return False
+
+        if len(self.extruderConfigurations) != len(other.extruderConfigurations):
+            return False
+
+        for self_extruder, other_extruder in zip(sorted(self._extruder_configurations, key=lambda x: x.position), sorted(other.extruderConfigurations, key=lambda x: x.position)):
+            if self_extruder != other_extruder:
+                return False
+
+        return True
 
     ##  The hash function is used to compare and create unique sets. The configuration is unique if the configuration
     #   of the extruders is unique (the order of the extruders matters), and the type and buildplate is the same.

cura/PrinterOutput/PrintJobOutputModel.py

@@ -0,0 +1,4 @@
+import warnings
+warnings.warn("Importing cura.PrinterOutput.PrintJobOutputModel has been deprecated since 4.1, use cura.PrinterOutput.Models.PrintJobOutputModel inststad", DeprecationWarning, stacklevel=2)
+# We moved the the models to one submodule deeper
+from cura.PrinterOutput.Models.PrintJobOutputModel import PrintJobOutputModel

cura/PrinterOutput/PrinterOutputModel.py

@@ -0,0 +1,4 @@
+import warnings
+warnings.warn("Importing cura.PrinterOutput.PrinterOutputModel has been deprecated since 4.1, use cura.PrinterOutput.Models.PrinterOutputModel inststad", DeprecationWarning, stacklevel=2)
+# We moved the the models to one submodule deeper
+from cura.PrinterOutput.Models.PrinterOutputModel import PrinterOutputModel

cura/PrinterOutputDevice.py

@@ -0,0 +1,4 @@
+import warnings
+warnings.warn("Importing cura.PrinterOutputDevice has been deprecated since 4.1, use cura.PrinterOutput.PrinterOutputDevice inststad", DeprecationWarning, stacklevel=2)
+# We moved the PrinterOutput device to it's own submodule.
+from cura.PrinterOutput.PrinterOutputDevice import PrinterOutputDevice, ConnectionState

cura/Scene/CuraSceneNode.py

@@ -116,11 +116,11 @@ class CuraSceneNode(SceneNode):
         if self._mesh_data:
             self._aabb = self._mesh_data.getExtents(self.getWorldTransformation())
 
-        for child in self._children:
+        for child in self.getAllChildren():
             if child.callDecoration("isNonPrintingMesh"):
                 # Non-printing-meshes inside a group should not affect push apart or drop to build plate
                 continue
-            if not child._mesh_data:
+            if not child.getMeshData():
                 # Nodes without mesh data should not affect bounding boxes of their parents.
                 continue
             if self._aabb is None:

cura/Settings/GlobalStack.py

@@ -4,6 +4,8 @@
 from collections import defaultdict
 import threading
 from typing import Any, Dict, Optional, Set, TYPE_CHECKING, List
+import uuid
+
 from PyQt5.QtCore import pyqtProperty, pyqtSlot, pyqtSignal
 
 from UM.Decorators import override
@@ -34,6 +36,12 @@ class GlobalStack(CuraContainerStack):
 
         self.setMetaDataEntry("type", "machine")  # For backward compatibility
 
+        # TL;DR: If Cura is looking for printers that belong to the same group, it should use "group_id".
+        # Each GlobalStack by default belongs to a group which is identified via "group_id". This group_id is used to
+        # figure out which GlobalStacks are in the printer cluster for example without knowing the implementation
+        # details such as the um_network_key or some other identifier that's used by the underlying device plugin.
+        self.setMetaDataEntry("group_id", str(uuid.uuid4()))  # Assign a new GlobalStack to a unique group by default
+
         self._extruders = {}  # type: Dict[str, "ExtruderStack"]
 
         # This property is used to track which settings we are calculating the "resolve" for
@@ -68,6 +76,10 @@ class GlobalStack(CuraContainerStack):
     def maxExtruderCount(self):
         return len(self.getMetaDataEntry("machine_extruder_trains"))
 
+    @pyqtProperty(bool, notify=configuredConnectionTypesChanged)
+    def supportsNetworkConnection(self):
+        return self.getMetaDataEntry("supports_network_connection", False)
+
     @classmethod
     def getLoadingPriority(cls) -> int:
         return 2

cura/Settings/MachineManager.py

@@ -720,7 +720,7 @@ class MachineManager(QObject):
                     extruder_stack.userChanges.setProperty(key, "value", new_value)
 
     @pyqtProperty(str, notify = activeVariantChanged)
-    @deprecated("use Cura.activeStack.variant.name instead", "4.1")
+    @deprecated("use Cura.MachineManager.activeStack.variant.name instead", "4.1")
     def activeVariantName(self) -> str:
         if self._active_container_stack:
             variant = self._active_container_stack.variant
@@ -730,7 +730,7 @@ class MachineManager(QObject):
         return ""
 
     @pyqtProperty(str, notify = activeVariantChanged)
-    @deprecated("use Cura.activeStack.variant.id instead", "4.1")
+    @deprecated("use Cura.MachineManager.activeStack.variant.id instead", "4.1")
     def activeVariantId(self) -> str:
         if self._active_container_stack:
             variant = self._active_container_stack.variant
@@ -740,7 +740,7 @@ class MachineManager(QObject):
         return ""
 
     @pyqtProperty(str, notify = activeVariantChanged)
-    @deprecated("use Cura.activeMachine.variant.name instead", "4.1")
+    @deprecated("use Cura.MachineManager.activeMachine.variant.name instead", "4.1")
     def activeVariantBuildplateName(self) -> str:
         if self._global_container_stack:
             variant = self._global_container_stack.variant
@@ -750,7 +750,7 @@ class MachineManager(QObject):
         return ""
 
     @pyqtProperty(str, notify = globalContainerChanged)
-    @deprecated("use Cura.activeMachine.definition.id instead", "4.1")
+    @deprecated("use Cura.MachineManager.activeMachine.definition.id instead", "4.1")
     def activeDefinitionId(self) -> str:
         if self._global_container_stack:
             return self._global_container_stack.definition.id
@@ -797,7 +797,6 @@ class MachineManager(QObject):
                 self.setActiveMachine(other_machine_stacks[0]["id"])
 
         metadata = CuraContainerRegistry.getInstance().findContainerStacksMetadata(id = machine_id)[0]
-        network_key = metadata.get("um_network_key", None)
         ExtruderManager.getInstance().removeMachineExtruders(machine_id)
         containers = CuraContainerRegistry.getInstance().findInstanceContainersMetadata(type = "user", machine = machine_id)
         for container in containers:
@@ -805,8 +804,9 @@ class MachineManager(QObject):
         CuraContainerRegistry.getInstance().removeContainer(machine_id)
 
         # If the printer that is being removed is a network printer, the hidden printers have to be also removed
-        if network_key:
-            metadata_filter = {"um_network_key": network_key}
+        group_id = metadata.get("group_id", None)
+        if group_id:
+            metadata_filter = {"group_id": group_id}
             hidden_containers = CuraContainerRegistry.getInstance().findContainerStacks(type = "machine", **metadata_filter)
             if hidden_containers:
                 # This reuses the method and remove all printers recursively
@@ -1263,8 +1263,8 @@ class MachineManager(QObject):
         if self._global_container_stack is not None:
             if Util.parseBool(self._global_container_stack.getMetaDataEntry("has_materials", False)):
                 for position, extruder in self._global_container_stack.extruders.items():
-                    if extruder.isEnabled and not extruder.material.getMetaDataEntry("compatible"):
-                        return False
+                    if not extruder.isEnabled:
+                        continue
                     if not extruder.material.getMetaDataEntry("compatible"):
                         return False
         return True
@@ -1360,21 +1360,24 @@ class MachineManager(QObject):
         # Get the definition id corresponding to this machine name
         machine_definition_id = CuraContainerRegistry.getInstance().findDefinitionContainers(name = machine_name)[0].getId()
         # Try to find a machine with the same network key
-        new_machine = self.getMachine(machine_definition_id, metadata_filter = {"um_network_key": self.activeMachineNetworkKey()})
+        metadata_filter = {"group_id": self._global_container_stack.getMetaDataEntry("group_id"),
+                           "um_network_key": self.activeMachineNetworkKey(),
+                           }
+        new_machine = self.getMachine(machine_definition_id, metadata_filter = metadata_filter)
         # If there is no machine, then create a new one and set it to the non-hidden instance
         if not new_machine:
             new_machine = CuraStackBuilder.createMachine(machine_definition_id + "_sync", machine_definition_id)
             if not new_machine:
                 return
+            new_machine.setMetaDataEntry("group_id", self._global_container_stack.getMetaDataEntry("group_id"))
             new_machine.setMetaDataEntry("um_network_key", self.activeMachineNetworkKey())
             new_machine.setMetaDataEntry("group_name", self.activeMachineNetworkGroupName)
-            new_machine.setMetaDataEntry("hidden", False)
             new_machine.setMetaDataEntry("connection_type", self._global_container_stack.getMetaDataEntry("connection_type"))
         else:
             Logger.log("i", "Found a %s with the key %s. Let's use it!", machine_name, self.activeMachineNetworkKey())
-            new_machine.setMetaDataEntry("hidden", False)
 
         # Set the current printer instance to hidden (the metadata entry must exist)
+        new_machine.setMetaDataEntry("hidden", False)
         self._global_container_stack.setMetaDataEntry("hidden", True)
 
         self.setActiveMachine(new_machine.getId())
@@ -1640,6 +1643,13 @@ class MachineManager(QObject):
 
         return abbr_machine
 
+    # Checks if the given machine type name in the available machine list.
+    # The machine type is a code name such as "ultimaker_3", while the machine type name is the human-readable name of
+    # the machine type, which is "Ultimaker 3" for "ultimaker_3".
+    def hasHumanReadableMachineTypeName(self, machine_type_name: str) -> bool:
+        results = self._container_registry.findDefinitionContainersMetadata(name = machine_type_name)
+        return len(results) > 0
+
     @pyqtSlot(str, result = str)
     def getMachineTypeNameFromId(self, machine_type_id: str) -> str:
         machine_type_name = ""
@@ -1647,3 +1657,7 @@ class MachineManager(QObject):
         if results:
             machine_type_name = results[0]["name"]
         return machine_type_name
+
+    # Gets all machines that belong to the given group_id.
+    def getMachinesInGroup(self, group_id: str) -> List["GlobalStack"]:
+        return self._container_registry.findContainerStacks(type = "machine", group_id = group_id)

cura/Settings/SettingOverrideDecorator.py

@@ -113,19 +113,15 @@ class SettingOverrideDecorator(SceneNodeDecorator):
 
     def _onSettingChanged(self, setting_key, property_name): # Reminder: 'property' is a built-in function
         # We're only interested in a few settings and only if it's value changed.
-        if property_name == "value" and (setting_key in self._non_printing_mesh_settings or setting_key in self._non_thumbnail_visible_settings):
+        if property_name == "value":
+            if setting_key in self._non_printing_mesh_settings or setting_key in self._non_thumbnail_visible_settings:
                 # Trigger slice/need slicing if the value has changed.
                 new_is_non_printing_mesh = self._evaluateIsNonPrintingMesh()
-            new_is_non_thumbnail_visible_mesh = self._evaluateIsNonThumbnailVisibleMesh()
-            changed = False
+                self._is_non_thumbnail_visible_mesh = self._evaluateIsNonThumbnailVisibleMesh()
+
                 if self._is_non_printing_mesh != new_is_non_printing_mesh:
                     self._is_non_printing_mesh = new_is_non_printing_mesh
-                self._node.setCalculateBoundingBox(not self._is_non_printing_mesh)
-                changed = True
-            if self._is_non_thumbnail_visible_mesh != new_is_non_thumbnail_visible_mesh:
-                changed = True
                
-            if changed:
             Application.getInstance().getBackend().needsSlicing()
             Application.getInstance().getBackend().tickle()
 

cura/Settings/cura_empty_instance_containers.py

@@ -1,9 +1,11 @@
-# Copyright (c) 2018 Ultimaker B.V.
+# Copyright (c) 2019 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
 
 import copy
 
 from UM.Settings.constant_instance_containers import EMPTY_CONTAINER_ID, empty_container
+from UM.i18n import i18nCatalog
+catalog = i18nCatalog("cura")
 
 
 # Empty definition changes
@@ -28,7 +30,7 @@ empty_material_container.setMetaDataEntry("type", "material")
 EMPTY_QUALITY_CONTAINER_ID = "empty_quality"
 empty_quality_container = copy.deepcopy(empty_container)
 empty_quality_container.setMetaDataEntry("id", EMPTY_QUALITY_CONTAINER_ID)
-empty_quality_container.setName("Not Supported")
+empty_quality_container.setName(catalog.i18nc("@info:not supported profile", "Not supported"))
 empty_quality_container.setMetaDataEntry("quality_type", "not_supported")
 empty_quality_container.setMetaDataEntry("type", "quality")
 empty_quality_container.setMetaDataEntry("supported", False)

cura/UI/AddPrinterPagesModel.py

@@ -15,6 +15,7 @@ class AddPrinterPagesModel(WelcomePagesModel):
                             "page_url": self._getBuiltinWelcomePagePath("AddNetworkOrLocalPrinterContent.qml"),
                             "next_page_id": "machine_actions",
                             "next_page_button_text": self._catalog.i18nc("@action:button", "Add"),
+                            "previous_page_button_text": self._catalog.i18nc("@action:button", "Cancel"),
                             })
         self._pages.append({"id": "add_printer_by_ip",
                             "page_url": self._getBuiltinWelcomePagePath("AddPrinterByIpContent.qml"),

cura/UI/PrintInformation.py

@@ -81,6 +81,7 @@ class PrintInformation(QObject):
             "support_interface": catalog.i18nc("@tooltip", "Support Interface"),
             "support": catalog.i18nc("@tooltip", "Support"),
             "skirt": catalog.i18nc("@tooltip", "Skirt"),
+            "prime_tower": catalog.i18nc("@tooltip", "Prime Tower"),
             "travel": catalog.i18nc("@tooltip", "Travel"),
             "retract": catalog.i18nc("@tooltip", "Retractions"),
             "none": catalog.i18nc("@tooltip", "Other")

cura/UI/WelcomePagesModel.py

@@ -39,6 +39,7 @@ class WelcomePagesModel(ListModel):
     PageUrlRole = Qt.UserRole + 2  # URL to the page's QML file
     NextPageIdRole = Qt.UserRole + 3  # The next page ID it should go to
     NextPageButtonTextRole = Qt.UserRole + 4  # The text for the next page button
+    PreviousPageButtonTextRole = Qt.UserRole + 5  # The text for the previous page button
 
     def __init__(self, application: "CuraApplication", parent: Optional["QObject"] = None) -> None:
         super().__init__(parent)
@@ -47,6 +48,7 @@ class WelcomePagesModel(ListModel):
         self.addRoleName(self.PageUrlRole, "page_url")
         self.addRoleName(self.NextPageIdRole, "next_page_id")
         self.addRoleName(self.NextPageButtonTextRole, "next_page_button_text")
+        self.addRoleName(self.PreviousPageButtonTextRole, "previous_page_button_text")
 
         self._application = application
         self._catalog = i18nCatalog("cura")

cura/Utils/NetworkingUtil.py

@@ -0,0 +1,44 @@
+# Copyright (c) 2019 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+import socket
+from typing import Optional
+
+from PyQt5.QtCore import QObject, pyqtSlot
+
+
+#
+# This is a QObject because some of the functions can be used (and are useful) in QML.
+#
+class NetworkingUtil(QObject):
+
+    def __init__(self, parent: Optional["QObject"] = None) -> None:
+        super().__init__(parent = parent)
+
+    # Checks if the given string is a valid IPv4 address.
+    @pyqtSlot(str, result = bool)
+    def isIPv4(self, address: str) -> bool:
+        try:
+            socket.inet_pton(socket.AF_INET, address)
+            result = True
+        except:
+            result = False
+        return result
+
+    # Checks if the given string is a valid IPv6 address.
+    @pyqtSlot(str, result = bool)
+    def isIPv6(self, address: str) -> bool:
+        try:
+            socket.inet_pton(socket.AF_INET6, address)
+            result = True
+        except:
+            result = False
+        return result
+
+    # Checks if the given string is a valid IPv4 or IPv6 address.
+    @pyqtSlot(str, result = bool)
+    def isValidIP(self, address: str) -> bool:
+        return self.isIPv4(address) or self.isIPv6(address)
+
+
+__all__ = ["NetworkingUtil"]

plugins/3MFReader/ThreeMFReader.py

@@ -1,7 +1,7 @@
-# Copyright (c) 2018 Ultimaker B.V.
+# Copyright (c) 2019 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
 
-from typing import Optional
+from typing import List, Optional, Union, TYPE_CHECKING
 import os.path
 import zipfile
 
@@ -9,15 +9,16 @@ 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 UM.Scene.SceneNode import SceneNode #For typing.
 from UM.MimeTypeDatabase import MimeTypeDatabase, MimeType
 
+from cura.CuraApplication import CuraApplication
 from cura.Settings.ExtruderManager import ExtruderManager
 from cura.Scene.CuraSceneNode import CuraSceneNode
 from cura.Scene.BuildPlateDecorator import BuildPlateDecorator
@@ -25,11 +26,9 @@ from cura.Scene.SliceableObjectDecorator import SliceableObjectDecorator
 from cura.Scene.ZOffsetDecorator import ZOffsetDecorator
 from cura.Machines.QualityManager import getMachineDefinitionIDForQualitySearch
 
-MYPY = False
-
 
 try:
-    if not MYPY:
+    if not TYPE_CHECKING:
         import xml.etree.cElementTree as ET
 except ImportError:
     Logger.log("w", "Unable to load cElementTree, switching to slower version")
@@ -55,7 +54,7 @@ class ThreeMFReader(MeshReader):
         self._unit = None
         self._object_count = 0  # Used to name objects as there is no node name yet.
 
-    def _createMatrixFromTransformationString(self, transformation):
+    def _createMatrixFromTransformationString(self, transformation: str) -> Matrix:
         if transformation == "":
             return Matrix()
 
@@ -85,13 +84,13 @@ class ThreeMFReader(MeshReader):
 
         return temp_mat
 
-    ##  Convenience function that converts a SceneNode object (as obtained from libSavitar) to a Uranium scene node.
-    #   \returns Uranium scene node.
-    def _convertSavitarNodeToUMNode(self, savitar_node):
+    ##  Convenience function that converts a SceneNode object (as obtained from libSavitar) to a scene node.
+    #   \returns Scene node.
+    def _convertSavitarNodeToUMNode(self, savitar_node: Savitar.SceneNode) -> Optional[SceneNode]:
         self._object_count += 1
         node_name = "Object %s" % self._object_count
 
-        active_build_plate = Application.getInstance().getMultiBuildPlateModel().activeBuildPlate
+        active_build_plate = CuraApplication.getInstance().getMultiBuildPlateModel().activeBuildPlate
 
         um_node = CuraSceneNode() # This adds a SettingOverrideDecorator
         um_node.addDecorator(BuildPlateDecorator(active_build_plate))
@@ -122,7 +121,7 @@ class ThreeMFReader(MeshReader):
 
         # Add the setting override decorator, so we can add settings to this node.
         if settings:
-            global_container_stack = Application.getInstance().getGlobalContainerStack()
+            global_container_stack = CuraApplication.getInstance().getGlobalContainerStack()
 
             # Ensure the correct next container for the SettingOverride decorator is set.
             if global_container_stack:
@@ -161,7 +160,7 @@ class ThreeMFReader(MeshReader):
             um_node.addDecorator(sliceable_decorator)
         return um_node
 
-    def _read(self, file_name):
+    def _read(self, file_name: str) -> Union[SceneNode, List[SceneNode]]:
         result = []
         self._object_count = 0  # Used to name objects as there is no node name yet.
         # The base object of 3mf is a zipped archive.
@@ -181,12 +180,13 @@ class ThreeMFReader(MeshReader):
                 mesh_data = um_node.getMeshData()
                 if mesh_data is not None:
                     extents = mesh_data.getExtents()
+                    if extents is not None:
                         center_vector = Vector(extents.center.x, extents.center.y, extents.center.z)
                         transform_matrix.setByTranslation(center_vector)
                 transform_matrix.multiply(um_node.getLocalTransformation())
                 um_node.setTransformation(transform_matrix)
 
-                global_container_stack = Application.getInstance().getGlobalContainerStack()
+                global_container_stack = CuraApplication.getInstance().getGlobalContainerStack()
 
                 # Create a transformation Matrix to convert from 3mf worldspace into ours.
                 # First step: flip the y and z axis.
@@ -215,8 +215,11 @@ class ThreeMFReader(MeshReader):
                 um_node.setTransformation(um_node.getLocalTransformation().preMultiply(transformation_matrix))
 
                 # Check if the model is positioned below the build plate and honor that when loading project files.
-                if um_node.getMeshData() is not None:
-                    minimum_z_value = um_node.getMeshData().getExtents(um_node.getWorldTransformation()).minimum.y  # y is z in transformation coordinates
+                node_meshdata = um_node.getMeshData()
+                if node_meshdata is not None:
+                    aabb = node_meshdata.getExtents(um_node.getWorldTransformation())
+                    if aabb is not None:
+                        minimum_z_value = aabb.minimum.y  # y is z in transformation coordinates
                         if minimum_z_value < 0:
                             um_node.addDecorator(ZOffsetDecorator())
                             um_node.callDecoration("setZOffset", minimum_z_value)
@@ -225,7 +228,7 @@ class ThreeMFReader(MeshReader):
 
         except Exception:
             Logger.logException("e", "An exception occurred in 3mf reader.")
-            return None
+            return []
 
         return result
 

plugins/AMFReader/AMFReader.py

@@ -0,0 +1,173 @@
+# Copyright (c) 2019 fieldOfView
+# Cura is released under the terms of the LGPLv3 or higher.
+
+# This AMF parser is based on the AMF parser in legacy cura:
+# https://github.com/daid/LegacyCura/blob/ad7641e059048c7dcb25da1f47c0a7e95e7f4f7c/Cura/util/meshLoaders/amf.py
+from UM.MimeTypeDatabase import MimeTypeDatabase, MimeType
+from cura.CuraApplication import CuraApplication
+from UM.Logger import Logger
+
+from UM.Mesh.MeshData import MeshData, calculateNormalsFromIndexedVertices
+from UM.Mesh.MeshReader import MeshReader
+
+from cura.Scene.CuraSceneNode import CuraSceneNode
+from cura.Scene.SliceableObjectDecorator import SliceableObjectDecorator
+from cura.Scene.BuildPlateDecorator import BuildPlateDecorator
+from cura.Scene.ConvexHullDecorator import ConvexHullDecorator
+from UM.Scene.GroupDecorator import GroupDecorator
+
+import numpy
+import trimesh
+import os.path
+import zipfile
+
+MYPY = False
+try:
+    if not MYPY:
+        import xml.etree.cElementTree as ET
+except ImportError:
+    import xml.etree.ElementTree as ET
+
+from typing import Dict
+
+
+class AMFReader(MeshReader):
+    def __init__(self) -> None:
+        super().__init__()
+        self._supported_extensions = [".amf"]
+        self._namespaces = {}   # type: Dict[str, str]
+
+        MimeTypeDatabase.addMimeType(
+            MimeType(
+                name="application/x-amf",
+                comment="AMF",
+                suffixes=["amf"]
+            )
+        )
+
+    # Main entry point
+    # Reads the file, returns a SceneNode (possibly with nested ones), or None
+    def _read(self, file_name):
+        base_name = os.path.basename(file_name)
+        try:
+            zipped_file = zipfile.ZipFile(file_name)
+            xml_document = zipped_file.read(zipped_file.namelist()[0])
+            zipped_file.close()
+        except zipfile.BadZipfile:
+            raw_file = open(file_name, "r")
+            xml_document = raw_file.read()
+            raw_file.close()
+
+        try:
+            amf_document = ET.fromstring(xml_document)
+        except ET.ParseError:
+            Logger.log("e", "Could not parse XML in file %s" % base_name)
+            return None
+
+        if "unit" in amf_document.attrib:
+            unit = amf_document.attrib["unit"].lower()
+        else:
+            unit = "millimeter"
+        if unit == "millimeter":
+            scale = 1.0
+        elif unit == "meter":
+            scale = 1000.0
+        elif unit == "inch":
+            scale = 25.4
+        elif unit == "feet":
+            scale = 304.8
+        elif unit == "micron":
+            scale = 0.001
+        else:
+            Logger.log("w", "Unknown unit in amf: %s. Using mm instead." % unit)
+            scale = 1.0
+
+        nodes = []
+        for amf_object in amf_document.iter("object"):
+            for amf_mesh in amf_object.iter("mesh"):
+                amf_mesh_vertices = []
+                for vertices in amf_mesh.iter("vertices"):
+                    for vertex in vertices.iter("vertex"):
+                        for coordinates in vertex.iter("coordinates"):
+                            v = [0.0, 0.0, 0.0]
+                            for t in coordinates:
+                                if t.tag == "x":
+                                    v[0] = float(t.text) * scale
+                                elif t.tag == "y":
+                                    v[2] = float(t.text) * scale
+                                elif t.tag == "z":
+                                    v[1] = float(t.text) * scale
+                            amf_mesh_vertices.append(v)
+                if not amf_mesh_vertices:
+                    continue
+
+                indices = []
+                for volume in amf_mesh.iter("volume"):
+                    for triangle in volume.iter("triangle"):
+                        f = [0, 0, 0]
+                        for t in triangle:
+                            if t.tag == "v1":
+                                f[0] = int(t.text)
+                            elif t.tag == "v2":
+                                f[1] = int(t.text)
+                            elif t.tag == "v3":
+                                f[2] = int(t.text)
+                        indices.append(f)
+
+                    mesh = trimesh.base.Trimesh(vertices=numpy.array(amf_mesh_vertices, dtype=numpy.float32), faces=numpy.array(indices, dtype=numpy.int32))
+                    mesh.merge_vertices()
+                    mesh.remove_unreferenced_vertices()
+                    mesh.fix_normals()
+                    mesh_data = self._toMeshData(mesh)
+
+                    new_node = CuraSceneNode()
+                    new_node.setSelectable(True)
+                    new_node.setMeshData(mesh_data)
+                    new_node.setName(base_name if len(nodes)==0 else "%s %d" % (base_name, len(nodes)))
+                    new_node.addDecorator(BuildPlateDecorator(CuraApplication.getInstance().getMultiBuildPlateModel().activeBuildPlate))
+                    new_node.addDecorator(SliceableObjectDecorator())
+
+                    nodes.append(new_node)
+
+        if not nodes:
+            Logger.log("e", "No meshes in file %s" % base_name)
+            return None
+
+        if len(nodes) == 1:
+            return nodes[0]
+
+        # Add all scenenodes to a group so they stay together
+        group_node = CuraSceneNode()
+        group_node.addDecorator(GroupDecorator())
+        group_node.addDecorator(ConvexHullDecorator())
+        group_node.addDecorator(BuildPlateDecorator(CuraApplication.getInstance().getMultiBuildPlateModel().activeBuildPlate))
+
+        for node in nodes:
+            node.setParent(group_node)
+
+        return group_node
+
+    def _toMeshData(self, tri_node: trimesh.base.Trimesh) -> MeshData:
+        tri_faces = tri_node.faces
+        tri_vertices = tri_node.vertices
+
+        indices = []
+        vertices = []
+
+        index_count = 0
+        face_count = 0
+        for tri_face in tri_faces:
+            face = []
+            for tri_index in tri_face:
+                vertices.append(tri_vertices[tri_index])
+                face.append(index_count)
+                index_count += 1
+            indices.append(face)
+            face_count += 1
+
+        vertices = numpy.asarray(vertices, dtype=numpy.float32)
+        indices = numpy.asarray(indices, dtype=numpy.int32)
+        normals = calculateNormalsFromIndexedVertices(vertices, indices, face_count)
+
+        mesh_data = MeshData(vertices=vertices, indices=indices, normals=normals)
+        return mesh_data

plugins/AMFReader/__init__.py

@@ -0,0 +1,21 @@
+# Copyright (c) 2019 fieldOfView
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from . import AMFReader
+
+from UM.i18n import i18nCatalog
+i18n_catalog = i18nCatalog("uranium")
+
+
+def getMetaData():
+    return {
+        "mesh_reader": [
+            {
+                "extension": "amf",
+                "description": i18n_catalog.i18nc("@item:inlistbox", "AMF File")
+            }
+        ]
+    }
+
+def register(app):
+    return {"mesh_reader": AMFReader.AMFReader()}

plugins/AMFReader/plugin.json

@@ -0,0 +1,7 @@
+{
+    "name": "AMF Reader",
+    "author": "fieldOfView",
+    "version": "1.0.0",
+    "description": "Provides support for reading AMF files.",
+    "api": "6.0.0"
+}

plugins/CuraDrive/src/DriveApiService.py

@@ -45,7 +45,7 @@ class DriveApiService:
                 "Authorization": "Bearer {}".format(access_token)
             })
         except requests.exceptions.ConnectionError:
-            Logger.log("w", "Unable to connect with the server.")
+            Logger.logException("w", "Unable to connect with the server.")
             return []
 
         # HTTP status 300s mean redirection. 400s and 500s are errors.
@@ -98,7 +98,12 @@ class DriveApiService:
             # If there is no download URL, we can't restore the backup.
             return self._emitRestoreError()
 
+        try:
             download_package = requests.get(download_url, stream = True)
+        except requests.exceptions.ConnectionError:
+            Logger.logException("e", "Unable to connect with the server")
+            return self._emitRestoreError()
+
         if download_package.status_code >= 300:
             # Something went wrong when attempting to download the backup.
             Logger.log("w", "Could not download backup from url %s: %s", download_url, download_package.text)
@@ -142,9 +147,14 @@ class DriveApiService:
             Logger.log("w", "Could not get access token.")
             return False
 
+        try:
             delete_backup = requests.delete("{}/{}".format(self.BACKUP_URL, backup_id), headers = {
                 "Authorization": "Bearer {}".format(access_token)
             })
+        except requests.exceptions.ConnectionError:
+            Logger.logException("e", "Unable to connect with the server")
+            return False
+
         if delete_backup.status_code >= 300:
             Logger.log("w", "Could not delete backup: %s", delete_backup.text)
             return False
@@ -159,15 +169,19 @@ class DriveApiService:
         if not access_token:
             Logger.log("w", "Could not get access token.")
             return None
-        
-        backup_upload_request = requests.put(self.BACKUP_URL, json = {
-            "data": {
-                "backup_size": backup_size,
+        try:
+            backup_upload_request = requests.put(
+                self.BACKUP_URL,
+                json = {"data": {"backup_size": backup_size,
                                  "metadata": backup_metadata
                                  }
-        }, headers = {
+                        },
+                headers = {
                     "Authorization": "Bearer {}".format(access_token)
                 })
+        except requests.exceptions.ConnectionError:
+            Logger.logException("e", "Unable to connect with the server")
+            return None
 
         # Any status code of 300 or above indicates an error.
         if backup_upload_request.status_code >= 300:

plugins/CuraEngineBackend/CuraEngineBackend.py

@@ -517,9 +517,6 @@ class CuraEngineBackend(QObject, Backend):
                 self._build_plates_to_be_sliced.append(build_plate_number)
             self.printDurationMessage.emit(source_build_plate_number, {}, [])
         self.processingProgress.emit(0.0)
-        self.setState(BackendState.NotStarted)
-        # if not self._use_timer:
-            # With manually having to slice, we want to clear the old invalid layer data.
         self._clearLayerData(build_plate_changed)
 
         self._invokeSlice()
@@ -563,10 +560,10 @@ class CuraEngineBackend(QObject, Backend):
 
     ##  Convenient function: mark everything to slice, emit state and clear layer data
     def needsSlicing(self) -> None:
+        self.determineAutoSlicing()
         self.stopSlicing()
         self.markSliceAll()
         self.processingProgress.emit(0.0)
-        self.setState(BackendState.NotStarted)
         if not self._use_timer:
             # With manually having to slice, we want to clear the old invalid layer data.
             self._clearLayerData()
@@ -735,6 +732,7 @@ class CuraEngineBackend(QObject, Backend):
             "support_interface": message.time_support_interface,
             "support": message.time_support,
             "skirt": message.time_skirt,
+            "prime_tower": message.time_prime_tower,
             "travel": message.time_travel,
             "retract": message.time_retract,
             "none": message.time_none

plugins/CuraEngineBackend/StartSliceJob.py

@@ -256,10 +256,7 @@ class StartSliceJob(Job):
             self._buildGlobalInheritsStackMessage(stack)
 
             # Build messages for extruder stacks
-            # Send the extruder settings in the order of extruder positions. Somehow, if you send e.g. extruder 3 first,
-            # then CuraEngine can slice with the wrong settings. This I think should be fixed in CuraEngine as well.
-            extruder_stack_list = sorted(list(global_stack.extruders.items()), key = lambda item: int(item[0]))
-            for _, extruder_stack in extruder_stack_list:
+            for extruder_stack in global_stack.extruderList:
                 self._buildExtruderMessage(extruder_stack)
 
             for group in filtered_object_groups:
@@ -334,25 +331,29 @@ class StartSliceJob(Job):
 
         return result
 
-    ##  Replace setting tokens in a piece of g-code.
-    #   \param value A piece of g-code to replace tokens in.
-    #   \param default_extruder_nr Stack nr to use when no stack nr is specified, defaults to the global stack
-    def _expandGcodeTokens(self, value: str, default_extruder_nr: int = -1) -> str:
-        if not self._all_extruders_settings:
+    def _cacheAllExtruderSettings(self):
         global_stack = cast(ContainerStack, CuraApplication.getInstance().getGlobalContainerStack())
 
         # NB: keys must be strings for the string formatter
         self._all_extruders_settings = {
             "-1": self._buildReplacementTokens(global_stack)
         }
-
         for extruder_stack in ExtruderManager.getInstance().getActiveExtruderStacks():
             extruder_nr = extruder_stack.getProperty("extruder_nr", "value")
             self._all_extruders_settings[str(extruder_nr)] = self._buildReplacementTokens(extruder_stack)
 
+    ##  Replace setting tokens in a piece of g-code.
+    #   \param value A piece of g-code to replace tokens in.
+    #   \param default_extruder_nr Stack nr to use when no stack nr is specified, defaults to the global stack
+    def _expandGcodeTokens(self, value: str, default_extruder_nr: int = -1) -> str:
+        if not self._all_extruders_settings:
+            self._cacheAllExtruderSettings()
+
         try:
             # any setting can be used as a token
             fmt = GcodeStartEndFormatter(default_extruder_nr = default_extruder_nr)
+            if self._all_extruders_settings is None:
+                return ""
             settings = self._all_extruders_settings.copy()
             settings["default_extruder_nr"] = default_extruder_nr
             return str(fmt.format(value, **settings))
@@ -364,8 +365,14 @@ class StartSliceJob(Job):
     def _buildExtruderMessage(self, stack: ContainerStack) -> None:
         message = self._slice_message.addRepeatedMessage("extruders")
         message.id = int(stack.getMetaDataEntry("position"))
+        if not self._all_extruders_settings:
+            self._cacheAllExtruderSettings()
 
-        settings = self._buildReplacementTokens(stack)
+        if self._all_extruders_settings is None:
+            return
+
+        extruder_nr = stack.getProperty("extruder_nr", "value")
+        settings = self._all_extruders_settings[str(extruder_nr)].copy()
 
         # Also send the material GUID. This is a setting in fdmprinter, but we have no interface for it.
         settings["material_guid"] = stack.material.getMetaDataEntry("GUID", "")
@@ -389,7 +396,13 @@ class StartSliceJob(Job):
     #   The settings are taken from the global stack. This does not include any
     #   per-extruder settings or per-object settings.
     def _buildGlobalSettingsMessage(self, stack: ContainerStack) -> None:
-        settings = self._buildReplacementTokens(stack)
+        if not self._all_extruders_settings:
+            self._cacheAllExtruderSettings()
+
+        if self._all_extruders_settings is None:
+            return
+
+        settings = self._all_extruders_settings["-1"].copy()
 
         # Pre-compute material material_bed_temp_prepend and material_print_temp_prepend
         start_gcode = settings["machine_start_gcode"]

plugins/GCodeReader/FlavorParser.py

@@ -370,6 +370,8 @@ class FlavorParser:
                     self._layer_type = LayerPolygon.InfillType
                 elif type == "SUPPORT-INTERFACE":
                     self._layer_type = LayerPolygon.SupportInterfaceType
+                elif type == "PRIME-TOWER":
+                    self._layer_type = LayerPolygon.PrimeTowerType
                 else:
                     Logger.log("w", "Encountered a unknown type (%s) while parsing g-code.", type)
 

plugins/MachineSettingsAction/MachineSettingsExtruderTab.qml

@@ -26,7 +26,7 @@ Item
 
     property int columnWidth: ((parent.width - 2 * UM.Theme.getSize("default_margin").width) / 2) | 0
     property int columnSpacing: 3 * screenScaleFactor
-    property int propertyStoreIndex: manager.storeContainerIndex  // definition_changes
+    property int propertyStoreIndex: manager ? manager.storeContainerIndex : 1  // definition_changes
 
     property string extruderStackId: ""
     property int extruderPosition: 0

plugins/MachineSettingsAction/MachineSettingsPrinterTab.qml

@@ -26,7 +26,7 @@ Item
 
     property int columnWidth: ((parent.width - 2 * UM.Theme.getSize("default_margin").width) / 2) | 0
     property int columnSpacing: 3 * screenScaleFactor
-    property int propertyStoreIndex: manager.storeContainerIndex  // definition_changes
+    property int propertyStoreIndex: manager ? manager.storeContainerIndex : 1  // definition_changes
 
     property string machineStackId: Cura.MachineManager.activeMachineId
 
@@ -285,18 +285,30 @@ Item
                 optionModel: ListModel
                 {
                     id: extruderCountModel
+
                     Component.onCompleted:
                     {
-                        extruderCountModel.clear()
+                        update()
+                    }
+
+                    function update()
+                    {
+                        clear()
                         for (var i = 1; i <= Cura.MachineManager.activeMachine.maxExtruderCount; i++)
                         {
                             // Use String as value. JavaScript only has Number. PropertyProvider.setPropertyValue()
                             // takes a QVariant as value, and Number gets translated into a float. This will cause problem
                             // for integer settings such as "Number of Extruders".
-                            extruderCountModel.append({ text: String(i), value: String(i) })
+                            append({ text: String(i), value: String(i) })
                         }
                     }
                 }
+
+                Connections
+                {
+                    target: Cura.MachineManager
+                    onGlobalContainerChanged: extruderCountModel.update()
+                }
             }
         }
     }

plugins/MonitorStage/MonitorMain.qml

@@ -12,7 +12,15 @@ Rectangle
     id: viewportOverlay
 
     property bool isConnected: Cura.MachineManager.activeMachineHasNetworkConnection || Cura.MachineManager.activeMachineHasCloudConnection
-    property bool isNetworkConfigurable: ["Ultimaker 3", "Ultimaker 3 Extended", "Ultimaker S5"].indexOf(Cura.MachineManager.activeMachineDefinitionName) > -1
+    property bool isNetworkConfigurable:
+    {
+        if(Cura.MachineManager.activeMachine === null)
+        {
+            return false
+        }
+        return Cura.MachineManager.activeMachine.supportsNetworkConnection
+    }
+
     property bool isNetworkConfigured:
     {
         // Readability:
@@ -98,7 +106,6 @@ Rectangle
             width: contentWidth
         }
 
-        // CASE 3: CAN NOT MONITOR
         Label
         {
             id: noNetworkLabel
@@ -106,24 +113,8 @@ Rectangle
             {
                 horizontalCenter: parent.horizontalCenter
             }
-            visible: !isNetworkConfigured
-            text: catalog.i18nc("@info", "Please select a network connected printer to monitor.")
-            font: UM.Theme.getFont("medium")
-            color: UM.Theme.getColor("monitor_text_primary")
-            wrapMode: Text.WordWrap
-            width: contentWidth
-            lineHeight: UM.Theme.getSize("monitor_text_line_large").height
-            lineHeightMode: Text.FixedHeight
-        }
-        Label
-        {
-            id: noNetworkUltimakerLabel
-            anchors
-            {
-                horizontalCenter: parent.horizontalCenter
-            }
             visible: !isNetworkConfigured && isNetworkConfigurable
-            text: catalog.i18nc("@info", "Please connect your Ultimaker printer to your local network.")
+            text: catalog.i18nc("@info", "Please connect your printer to the network.")
             font: UM.Theme.getFont("medium")
             color: UM.Theme.getColor("monitor_text_primary")
             wrapMode: Text.WordWrap
@@ -135,7 +126,7 @@ Rectangle
         {
             anchors
             {
-                left: noNetworkUltimakerLabel.left
+                left: noNetworkLabel.left
             }
             visible: !isNetworkConfigured && isNetworkConfigurable
             height: UM.Theme.getSize("monitor_text_line").height
@@ -160,7 +151,7 @@ Rectangle
                     verticalCenter: externalLinkIcon.verticalCenter
                 }
                 color: UM.Theme.getColor("monitor_text_link")
-                font: UM.Theme.getFont("medium") // 14pt, regular
+                font: UM.Theme.getFont("medium")
                 linkColor: UM.Theme.getColor("monitor_text_link")
                 text: catalog.i18nc("@label link to technical assistance", "View user manuals online")
                 renderType: Text.NativeRendering
@@ -170,14 +161,8 @@ Rectangle
                 anchors.fill: parent
                 hoverEnabled: true
                 onClicked: Qt.openUrlExternally("https://ultimaker.com/en/resources/manuals/ultimaker-3d-printers")
-                onEntered:
-                {
-                    manageQueueText.font.underline = true
-                }
-                onExited:
-                {
-                    manageQueueText.font.underline = false
-                }
+                onEntered: manageQueueText.font.underline = true
+                onExited: manageQueueText.font.underline = false
             }
         }
     }

plugins/PostProcessingPlugin/scripts/FilamentChange.py

@@ -1,9 +1,7 @@
 # Copyright (c) 2019 Ultimaker B.V.
 # The PostProcessingPlugin is released under the terms of the AGPLv3 or higher.
 
-from typing import Optional, Tuple
-
-from UM.Logger import Logger
+from typing import List
 from ..Script import Script
 
 class FilamentChange(Script):
@@ -65,9 +63,10 @@ class FilamentChange(Script):
             }
         }"""
 
-    def execute(self, data: list):
-
-        """data is a list. Each index contains a layer"""
+    ##  Inserts the filament change g-code at specific layer numbers.
+    #   \param data A list of layers of g-code.
+    #   \return A similar list, with filament change commands inserted.
+    def execute(self, data: List[str]):
         layer_nums = self.getSettingValueByKey("layer_number")
         initial_retract = self.getSettingValueByKey("initial_retract")
         later_retract = self.getSettingValueByKey("later_retract")
@@ -88,32 +87,13 @@ class FilamentChange(Script):
         if y_pos is not None:
             color_change = color_change + (" Y%.2f" % y_pos)
 
-        color_change = color_change + " ; Generated by FilamentChange plugin"
+        color_change = color_change + " ; Generated by FilamentChange plugin\n"
 
         layer_targets = layer_nums.split(",")
         if len(layer_targets) > 0:
             for layer_num in layer_targets:
-                layer_num = int(layer_num.strip())
+                layer_num = int(layer_num.strip()) + 1
                 if layer_num <= len(data):
-                    index, layer_data = self._searchLayerData(data, layer_num - 1)
-                    if layer_data is None:
-                        Logger.log("e", "Could not find the layer {layer_num}".format(layer_num = layer_num))
-                        continue
-                    lines = layer_data.split("\n")
-                    lines.insert(2, color_change)
-                    final_line = "\n".join(lines)
-                    data[index] = final_line
+                    data[layer_num] = color_change + data[layer_num]
 
         return data
-
-    ##  This method returns the data corresponding with the indicated layer number, looking in the gcode for
-    #   the occurrence of this layer number.
-    def _searchLayerData(self, data: list, layer_num: int) -> Tuple[int, Optional[str]]:
-        for index, layer_data in enumerate(data):
-            first_line = layer_data.split("\n")[0]
-            # The first line should contain the layer number at the beginning.
-            if first_line[:len(self._layer_keyword)] == self._layer_keyword:
-                # If found the layer that we are looking for, then return the data
-                if first_line[len(self._layer_keyword):] == str(layer_num):
-                    return index, layer_data
-        return 0, None

plugins/PrepareStage/PrepareMenu.qml

@@ -20,11 +20,19 @@ Item
         name: "cura"
     }
 
+    anchors
+    {
+        left: parent.left
+        right: parent.right
+        leftMargin: UM.Theme.getSize("wide_margin").width
+        rightMargin: UM.Theme.getSize("wide_margin").width
+    }
+
     // Item to ensure that all of the buttons are nicely centered.
     Item
     {
         anchors.horizontalCenter: parent.horizontalCenter
-        width: openFileButton.width + itemRow.width + UM.Theme.getSize("default_margin").width
+        width: parent.width - 2 * UM.Theme.getSize("wide_margin").width
         height: parent.height
 
         RowLayout
@@ -32,9 +40,9 @@ Item
             id: itemRow
 
             anchors.left: openFileButton.right
+            anchors.right: parent.right
             anchors.leftMargin: UM.Theme.getSize("default_margin").width
 
-            width: Math.round(0.9 * prepareMenu.width)
             height: parent.height
             spacing: 0
 

plugins/PreviewStage/PreviewMenu.qml

@@ -20,15 +20,21 @@ Item
         name: "cura"
     }
 
+    anchors
+    {
+        left: parent.left
+        right: parent.right
+        leftMargin: UM.Theme.getSize("wide_margin").width
+        rightMargin: UM.Theme.getSize("wide_margin").width
+    }
+
     Row
     {
         id: stageMenuRow
-        anchors.centerIn: parent
-        height: parent.height
-        width: childrenRect.width
 
-        // We want this row to have a preferred with equals to the 85% of the parent
-        property int preferredWidth: Math.round(0.85 * previewMenu.width)
+        anchors.horizontalCenter: parent.horizontalCenter
+        width: parent.width - 2 * UM.Theme.getSize("wide_margin").width
+        height: parent.height
 
         Cura.ViewsSelector
         {
@@ -49,12 +55,12 @@ Item
             color: UM.Theme.getColor("lining")
         }
 
-        // This component will grow freely up to complete the preferredWidth of the row.
+        // This component will grow freely up to complete the width of the row.
         Loader
         {
             id: viewPanel
             height: parent.height
-            width: source != "" ? (stageMenuRow.preferredWidth - viewsSelector.width - printSetupSelectorItem.width - 2 * UM.Theme.getSize("default_lining").width) : 0
+            width: source != "" ? (previewMenu.width - viewsSelector.width - printSetupSelectorItem.width - 2 * (UM.Theme.getSize("wide_margin").width + UM.Theme.getSize("default_lining").width)) : 0
             source: UM.Controller.activeView != null && UM.Controller.activeView.stageMenuComponent != null ? UM.Controller.activeView.stageMenuComponent : ""
         }
 

plugins/SimulationView/SimulationViewMenuComponent.qml

@@ -15,6 +15,8 @@ Cura.ExpandableComponent
 {
     id: base
 
+    dragPreferencesNamePrefix: "view/colorscheme"
+
     contentHeaderTitle: catalog.i18nc("@label", "Color scheme")
 
     Connections

plugins/SliceInfoPlugin/MoreInfoWindow.qml

@@ -71,7 +71,7 @@ Window
                     left: parent.left
                     right: parent.right
                 }
-                text: catalog.i18nc("@text:window", "Cura sends anonymous data to Ultimaker in order to improve the print quality and user experience. Below is an example of all the data that is sent.")
+                text: catalog.i18nc("@text:window", "Ultimaker Cura collects anonymous data in order to improve the print quality and user experience. Below is an example of all the data that is shared:")
                 wrapMode: Text.WordWrap
                 renderType: Text.NativeRendering
             }
@@ -89,6 +89,8 @@ Window
                 }
 
                 textArea.text: manager.getExampleData()
+                textArea.textFormat: Text.RichText
+                textArea.wrapMode: Text.Wrap
                 textArea.readOnly: true
             }
         }
@@ -104,7 +106,7 @@ Window
             Cura.RadioButton
             {
                 id: dontSendButton
-                text: catalog.i18nc("@text:window", "I don't want to send this data")
+                text: catalog.i18nc("@text:window", "I don't want to send anonymous data")
                 onClicked:
                 {
                     baseDialog.allowSendData = !checked
@@ -113,7 +115,7 @@ Window
             Cura.RadioButton
             {
                 id: allowSendButton
-                text: catalog.i18nc("@text:window", "Allow sending this data to Ultimaker and help us improve Cura")
+                text: catalog.i18nc("@text:window", "Allow sending anonymous data")
                 onClicked:
                 {
                     baseDialog.allowSendData = checked

plugins/SliceInfoPlugin/SliceInfo.py

@@ -77,7 +77,7 @@ class SliceInfo(QObject, Extension):
             if not plugin_path:
                 Logger.log("e", "Could not get plugin path!", self.getPluginId())
                 return None
-            file_path = os.path.join(plugin_path, "example_data.json")
+            file_path = os.path.join(plugin_path, "example_data.html")
             if file_path:
                 with open(file_path, "r", encoding = "utf-8") as f:
                     self._example_data_content = f.read()

plugins/SliceInfoPlugin/example_data.html

@@ -0,0 +1,64 @@
+<html>
+<body>
+    <b>Cura Version:</b> 4.0<br/>
+    <b>Operating System:</b> Windows 10<br/>
+    <b>Language:</b> en_US<br/>
+    <b>Machine Type:</b> Ultimaker S5<br/>
+    <b>Quality Profile:</b> Fast<br/>
+    <b>Using Custom Settings:</b> No
+
+    <h3>Extruder 1:</h3>
+    <ul>
+        <li><b>Material Type:</b> PLA</li>
+        <li><b>Print Core:</b> AA 0.4</li>
+        <li><b>Material Used:</b> 1240 mm</li>
+    </ul>
+
+    <h3>Extruder 2:</h3>
+    <ul>
+        <li><b>Material Type:</b> PVA</li>
+        <li><b>Print Core:</b> BB 0.4</li>
+        <li><b>Material Used:</b> 432 mm</li>
+    </ul>
+
+    <h3>Print Settings:</h3>
+    <ul>
+        <li><b>Layer Height:</b> 0.15</li>
+        <li><b>Wall Line Count:</b> 3</li>
+        <li><b>Enable Retraction:</b> no</li>
+        <li><b>Infill Density:</b> 20%</li>
+        <li><b>Infill Pattern:</b> triangles</li>
+        <li><b>Gradual Infill Steps:</b> 0</li>
+        <li><b>Printing Temperature:</b> 220 °C</li>
+        <li><b>Generate Support:</b> yes</li>
+        <li><b>Support Extruder:</b> 1</li>
+        <li><b>Build Plate Adhesion Type:</b> brim</li>
+        <li><b>Enable Prime Tower:</b> yes</li>
+        <li><b>Print Sequence:</b> All at once</li>
+        <li>...</li>
+    </ul>
+
+    <h3>Model Information:</h3>
+    <ul>
+        <li>
+            <b>Model 1</b>
+            <ul>
+                <li><b>Hash:</b> b72789b9b...</li>
+                <li><b>Transformation:</b> [transformation matrix]</li>
+                <li><b>Bounding Box:</b> [minimum x, y, z; maximum x, y, z]</li>
+                <li><b>Is Helper Mesh:</b> no</li>
+                <li><b>Helper Mesh Type:</b> support mesh</li>
+            </ul>
+        </li>
+    </ul>
+
+    <h3>Print Times:</h3>
+    <ul>
+        <li>Infill: 61200 sec.</li>
+        <li>Support: 25480 sec.</li>
+        <li>Travel: 6224 sec.</li>
+        <li>Walls: 10225 sec.</li>
+        <li>Total: 103129 sec.</li>
+    </ul>
+</body>
+</html>

plugins/SliceInfoPlugin/example_data.json

@@ -1,114 +0,0 @@
-{
-    "time_stamp": 1523973715.486928,
-    "schema_version": 0,
-    "cura_version": "3.3",
-    "active_mode": "custom",
-    "machine_settings_changed_by_user": true,
-    "language": "en_US",
-    "os": {
-        "type": "Linux",
-        "version": "#43~16.04.1-Ubuntu SMP Wed Mar 14 17:48:43 UTC 2018"
-    },
-    "active_machine": {
-        "definition_id": "ultimaker3",
-        "manufacturer": "Ultimaker B.V."
-    },
-    "extruders": [
-        {
-            "active": true,
-            "material": {
-                "GUID": "506c9f0d-e3aa-4bd4-b2d2-23e2425b1aa9",
-                "type": "PLA",
-                "brand": "Generic"
-            },
-            "material_used": 0.84,
-            "variant": "AA 0.4",
-            "nozzle_size": 0.4,
-            "extruder_settings": {
-                "wall_line_count": 3,
-                "retraction_enable": true,
-                "infill_sparse_density": 30,
-                "infill_pattern": "triangles",
-                "gradual_infill_steps": 0,
-                "default_material_print_temperature": 200,
-                "material_print_temperature": 200
-            }
-        },
-        {
-            "active": false,
-            "material": {
-                "GUID": "86a89ceb-4159-47f6-ab97-e9953803d70f",
-                "type": "PVA",
-                "brand": "Generic"
-            },
-            "material_used": 0.5,
-            "variant": "BB 0.4",
-            "nozzle_size": 0.4,
-            "extruder_settings": {
-                "wall_line_count": 3,
-                "retraction_enable": true,
-                "infill_sparse_density": 20,
-                "infill_pattern": "triangles",
-                "gradual_infill_steps": 0,
-                "default_material_print_temperature": 215,
-                "material_print_temperature": 220
-            }
-        }
-    ],
-    "quality_profile": "fast",
-    "user_modified_setting_keys": ["layer_height", "wall_line_width", "infill_sparse_density"],
-    "models": [
-        {
-            "hash": "b72789b9beb5366dff20b1cf501020c3d4d4df7dc2295ecd0fddd0a6436df070",
-            "bounding_box": {
-                "minimum": {
-                    "x": -10.0,
-                    "y": 0.0,
-                    "z": -5.0
-                },
-                "maximum": {
-                    "x": 9.999999046325684,
-                    "y": 40.0,
-                    "z": 5.0
-                }
-            },
-            "transformation": {
-                "data": "[[ 1.  0.  0.  0.] [ 0.  1.  0. 20.] [ 0.  0.  1.  0.] [ 0.  0.  0.  1.]]"
-            },
-            "extruder": 0,
-            "model_settings": {
-                "support_enabled": true,
-                "support_extruder_nr": 1,
-                "infill_mesh": false,
-                "cutting_mesh": false,
-                "support_mesh": false,
-                "anti_overhang_mesh": false,
-                "wall_line_count": 3,
-                "retraction_enable": true,
-                "infill_sparse_density": 30,
-                "infill_pattern": "triangles",
-                "gradual_infill_steps": 0
-            }
-        }
-    ],
-    "print_times": {
-        "travel": 187,
-        "support": 825,
-        "infill": 351,
-        "total": 7234
-    },
-    "print_settings": {
-        "layer_height": 0.15,
-        "support_enabled": true,
-        "support_extruder_nr": 1,
-        "adhesion_type": "brim",
-        "wall_line_count": 3,
-        "retraction_enable": true,
-        "prime_tower_enable": true,
-        "infill_sparse_density": 20,
-        "infill_pattern": "triangles",
-        "gradual_infill_steps": 0,
-        "print_sequence": "all_at_once"
-    },
-    "output_to": "LocalFileOutputDevice"
-}

plugins/SolidView/SolidView.py

@@ -58,7 +58,7 @@ class SolidView(View):
         global_container_stack = Application.getInstance().getGlobalContainerStack()
         if global_container_stack:
             support_extruder_nr = global_container_stack.getExtruderPositionValueWithDefault("support_extruder_nr")
-            support_angle_stack = Application.getInstance().getExtruderManager().getExtruderStack(support_extruder_nr)
+            support_angle_stack = global_container_stack.extruders.get(str(support_extruder_nr))
             if support_angle_stack:
                 self._support_angle = support_angle_stack.getProperty("support_angle", "value")
 

plugins/Toolbox/resources/qml/ToolboxAuthorPage.qml

@@ -109,6 +109,8 @@ Item
                 top: description.bottom
                 left: properties.right
                 leftMargin: UM.Theme.getSize("default_margin").width
+                right: parent.right
+                rightMargin: UM.Theme.getSize("default_margin").width
                 topMargin: UM.Theme.getSize("default_margin").height
             }
             spacing: Math.floor(UM.Theme.getSize("narrow_margin").height)
@@ -123,6 +125,8 @@ Item
                     }
                     return ""
                 }
+                width: parent.width
+                elide: Text.ElideRight
                 font: UM.Theme.getFont("default")
                 color: UM.Theme.getColor("text")
                 linkColor: UM.Theme.getColor("text_link")

plugins/Toolbox/resources/qml/ToolboxDetailTileActions.qml

@@ -40,6 +40,7 @@ Column
 
         Cura.SecondaryButton
         {
+            id: installedButton
             visible: installed
             onClicked: toolbox.viewCategory = "installed"
             text: catalog.i18nc("@action:button", "Installed")

plugins/Toolbox/src/Toolbox.py

@@ -105,6 +105,7 @@ class Toolbox(QObject, Extension):
 
         self._application.initializationFinished.connect(self._onAppInitialized)
         self._application.getCuraAPI().account.loginStateChanged.connect(self._updateRequestHeader)
+        self._application.getCuraAPI().account.accessTokenChanged.connect(self._updateRequestHeader)
 
     # Signals:
     # --------------------------------------------------------------------------

plugins/UFPReader/__init__.py

@@ -1,10 +1,15 @@
 #Copyright (c) 2019 Ultimaker B.V.
 #Cura is released under the terms of the LGPLv3 or higher.
 
+import sys
+
+from UM.Logger import Logger
+try:
+    from . import UFPReader
+except ImportError:
+    Logger.log("w", "Could not import UFPReader; libCharon may be missing")
+
 from UM.i18n import i18nCatalog
-
-from . import UFPReader
-
 i18n_catalog = i18nCatalog("cura")
 
 
@@ -21,6 +26,9 @@ def getMetaData():
 
 
 def register(app):
+    if "UFPReader.UFPReader" not in sys.modules:
+        return {}
+
     app.addNonSliceableExtension(".ufp")
     return {"mesh_reader": UFPReader.UFPReader()}
 

plugins/UM3NetworkPrinting/resources/qml/DiscoverUM3Action.qml

@@ -1,8 +1,8 @@
-// Copyright (c) 2018 Ultimaker B.V.
+// Copyright (c) 2019 Ultimaker B.V.
 // Cura is released under the terms of the LGPLv3 or higher.
 
 import UM 1.2 as UM
-import Cura 1.0 as Cura
+import Cura 1.5 as Cura
 
 import QtQuick 2.2
 import QtQuick.Controls 1.1
@@ -14,22 +14,27 @@ Cura.MachineAction
 {
     id: base
     anchors.fill: parent;
+    property alias currentItemIndex: listview.currentIndex
     property var selectedDevice: null
     property bool completeProperties: true
 
+    // For validating IP addresses
+    property var networkingUtil: Cura.NetworkingUtil {}
+
     function connectToPrinter()
     {
         if(base.selectedDevice && base.completeProperties)
         {
             var printerKey = base.selectedDevice.key
             var printerName = base.selectedDevice.name  // TODO To change when the groups have a name
-            if (manager.getStoredKey() != printerKey)
+            if (Cura.API.machines.getCurrentMachine().um_network_key != printerKey) // TODO: change to hostname
             {
                 // Check if there is another instance with the same key
                 if (!manager.existsKey(printerKey))
                 {
-                    manager.associateActiveMachineWithPrinterDevice(base.selectedDevice)
-                    manager.setGroupName(printerName)   // TODO To change when the groups have a name
+                    Cura.API.machines.addOutputDeviceToCurrentMachine(base.selectedDevice)
+                    Cura.API.machines.setCurrentMachineGroupName(printerName)   // TODO To change when the groups have a name
+                    manager.refreshConnections()
                     completed()
                 }
                 else
@@ -152,7 +157,7 @@ Cura.MachineAction
                             var selectedKey = manager.getLastManualEntryKey()
                             // If there is no last manual entry key, then we select the stored key (if any)
                             if (selectedKey == "")
-                                selectedKey = manager.getStoredKey()
+                                selectedKey = Cura.API.machines.getCurrentMachine().um_network_key // TODO: change to host name
                             for(var i = 0; i < model.length; i++) {
                                 if(model[i].key == selectedKey)
                                 {
@@ -342,6 +347,17 @@ Cura.MachineAction
         }
     }
 
+    MessageDialog
+    {
+        id: invalidIPAddressMessageDialog
+        x: (parent.x + (parent.width) / 2) | 0
+        y: (parent.y + (parent.height) / 2) | 0
+        title: catalog.i18nc("@title:window", "Invalid IP address")
+        text: catalog.i18nc("@text", "Please enter a valid IP address.")
+        icon: StandardIcon.Warning
+        standardButtons: StandardButton.Ok
+    }
+
     UM.Dialog
     {
         id: manualPrinterDialog
@@ -404,6 +420,26 @@ Cura.MachineAction
                 text: catalog.i18nc("@action:button", "OK")
                 onClicked:
                 {
+                    // Validate the input first
+                    if (!networkingUtil.isValidIP(manualPrinterDialog.addressText))
+                    {
+                        invalidIPAddressMessageDialog.open()
+                        return
+                    }
+
+                    // if the entered IP address has already been discovered, switch the current item to that item
+                    // and do nothing else.
+                    for (var i = 0; i < manager.foundDevices.length; i++)
+                    {
+                        var device = manager.foundDevices[i]
+                        if (device.address == manualPrinterDialog.addressText)
+                        {
+                            currentItemIndex = i
+                            manualPrinterDialog.hide()
+                            return
+                        }
+                    }
+
                     manager.setManualDevice(manualPrinterDialog.printerKey, manualPrinterDialog.addressText)
                     manualPrinterDialog.hide()
                 }

plugins/UM3NetworkPrinting/resources/qml/MonitorBuildplateConfiguration.qml

@@ -69,6 +69,7 @@ Item
             // FIXED-LINE-HEIGHT:
             height: 18 * screenScaleFactor // TODO: Theme!
             verticalAlignment: Text.AlignVCenter
+            renderType: Text.NativeRendering
         }
     }
 }

plugins/UM3NetworkPrinting/resources/qml/MonitorConfigOverrideDialog.qml

@@ -30,6 +30,21 @@ UM.Dialog
                 OutputDevice.forceSendJob(printer.activePrintJob.key)
                 overrideConfirmationDialog.close()
             }
+            visible:
+            {
+                if (!printer || !printer.activePrintJob)
+                {
+                    return true
+                }
+
+                var canOverride = false
+                for (var i = 0; i < printer.activePrintJob.configurationChanges.length; i++)
+                {
+                    var change = printer.activePrintJob.configurationChanges[i]
+                    canOverride = canOverride || change.typeOfChange === "material_change";
+                }
+                return canOverride
+            }
         },
         Button
         {
@@ -52,6 +67,7 @@ UM.Dialog
             bottomMargin: 56 * screenScaleFactor // TODO: Theme!
         }
         wrapMode: Text.WordWrap
+        renderType: Text.NativeRendering
         text:
         {
             if (!printer || !printer.activePrintJob)

plugins/UM3NetworkPrinting/resources/qml/MonitorContextMenuButton.qml

@@ -23,6 +23,7 @@ Button
         horizontalAlignment: Text.AlignHCenter
         text: base.text
         verticalAlignment: Text.AlignVCenter
+        renderType: Text.NativeRendering;
     }
     height: width
     hoverEnabled: enabled

plugins/UM3NetworkPrinting/resources/qml/MonitorExtruderConfiguration.qml

@@ -66,6 +66,7 @@ Item
             // FIXED-LINE-HEIGHT:
             height: parent.height
             verticalAlignment: Text.AlignVCenter
+            renderType: Text.NativeRendering
         }
     }
 
@@ -95,6 +96,7 @@ Item
             // FIXED-LINE-HEIGHT:
             height: parent.height
             verticalAlignment: Text.AlignVCenter
+            renderType: Text.NativeRendering
         }
     }
 }

plugins/UM3NetworkPrinting/resources/qml/MonitorIconExtruder.qml

@@ -48,5 +48,6 @@ Item
         x: Math.round(size * 0.25)
         y: Math.round(size * 0.15625)
         visible: position >= 0
+        renderType: Text.NativeRendering
     }
 }

plugins/UM3NetworkPrinting/resources/qml/MonitorInfoBlurb.qml

@@ -40,6 +40,7 @@ Item
                 width: 240 * screenScaleFactor // TODO: Theme!
                 color: UM.Theme.getColor("monitor_tooltip_text")
                 font: UM.Theme.getFont("default")
+                renderType: Text.NativeRendering
             }
         }
     }

plugins/UM3NetworkPrinting/resources/qml/MonitorPrintJobCard.qml

@@ -71,6 +71,7 @@ Item
                     // FIXED-LINE-HEIGHT:
                     height: parent.height
                     verticalAlignment: Text.AlignVCenter
+                    renderType: Text.NativeRendering
                 }
             }
 
@@ -98,6 +99,7 @@ Item
                     // FIXED-LINE-HEIGHT:
                     height: 18 * screenScaleFactor // TODO: Theme!
                     verticalAlignment: Text.AlignVCenter
+                    renderType: Text.NativeRendering
                 }
             }
 
@@ -143,6 +145,7 @@ Item
                     // FIXED-LINE-HEIGHT:
                     height: parent.height
                     verticalAlignment: Text.AlignVCenter
+                    renderType: Text.NativeRendering
                 }
 
                 Row
@@ -158,14 +161,9 @@ Item
                     spacing: 6 // TODO: Theme!
                     visible: printJob
 
-                    Repeater
+                    MonitorPrinterPill
                     {
-                        id: compatiblePills
-                        delegate: MonitorPrinterPill
-                        {
-                            text: modelData
-                        }
-                        model: printJob ? printJob.compatibleMachineFamilies : []
+                        text: printJob.configuration.printerType
                     }
                 }
             }
@@ -202,6 +200,7 @@ Item
                 // FIXED-LINE-HEIGHT:
                 height: 18 * screenScaleFactor // TODO: Theme!
                 verticalAlignment: Text.AlignVCenter
+                renderType: Text.NativeRendering
             }
         }
     }

plugins/UM3NetworkPrinting/resources/qml/MonitorPrintJobProgressBar.qml

@@ -47,6 +47,7 @@ Item
         // FIXED-LINE-HEIGHT:
         height: 18 * screenScaleFactor // TODO: Theme!
         verticalAlignment: Text.AlignVCenter
+        renderType: Text.NativeRendering
     }
     Label
     {
@@ -99,5 +100,6 @@ Item
         // FIXED-LINE-HEIGHT:
         height: 18 * screenScaleFactor // TODO: Theme!
         verticalAlignment: Text.AlignVCenter
+        renderType: Text.NativeRendering
     }
 }

plugins/UM3NetworkPrinting/resources/qml/MonitorPrinterCard.qml

@@ -112,6 +112,7 @@ Item
                         // FIXED-LINE-HEIGHT:
                         height: parent.height
                         verticalAlignment: Text.AlignVCenter
+                        renderType: Text.NativeRendering
                     }
                 }
 
@@ -315,6 +316,7 @@ Item
                     return ""
                 }
                 visible: text !== ""
+                renderType: Text.NativeRendering
             }
 
             Item
@@ -356,6 +358,7 @@ Item
                     // FIXED-LINE-HEIGHT:
                     height: 18 * screenScaleFactor // TODO: Theme!
                     verticalAlignment: Text.AlignVCenter
+                    renderType: Text.NativeRendering
                 }
 
                 Label
@@ -376,6 +379,7 @@ Item
                     // FIXED-LINE-HEIGHT:
                     height: 18 * screenScaleFactor // TODO: Theme!
                     verticalAlignment: Text.AlignVCenter
+                    renderType: Text.NativeRendering
                 }
             }
 
@@ -403,6 +407,7 @@ Item
                 // FIXED-LINE-HEIGHT:
                 height: 18 * screenScaleFactor // TODO: Theme!
                 verticalAlignment: Text.AlignVCenter
+                renderType: Text.NativeRendering
             }
         }
 
@@ -437,6 +442,7 @@ Item
                 verticalAlignment: Text.AlignVCenter
                 horizontalAlignment: Text.AlignHCenter
                 height: 18 * screenScaleFactor // TODO: Theme!
+                renderType: Text.NativeRendering
             }
             implicitHeight: 32 * screenScaleFactor // TODO: Theme!
             implicitWidth: 96 * screenScaleFactor // TODO: Theme!

plugins/UM3NetworkPrinting/resources/qml/MonitorPrinterPill.qml

@@ -43,5 +43,6 @@ Item
         text: tagText
         font.pointSize: 10 // TODO: Theme!
         visible: text !== ""
+        renderType: Text.NativeRendering
     }
 }

plugins/UM3NetworkPrinting/resources/qml/MonitorQueue.qml

@@ -29,6 +29,7 @@ Item
         color: UM.Theme.getColor("monitor_text_primary")
         font: UM.Theme.getFont("large")
         text: catalog.i18nc("@label", "Queued")
+        renderType: Text.NativeRendering
     }
 
     Item
@@ -109,6 +110,7 @@ Item
             // FIXED-LINE-HEIGHT:
             height: 18 * screenScaleFactor // TODO: Theme!
             verticalAlignment: Text.AlignVCenter
+            renderType: Text.NativeRendering
         }
 
         Label
@@ -123,6 +125,7 @@ Item
             // FIXED-LINE-HEIGHT:
             height: 18 * screenScaleFactor // TODO: Theme!
             verticalAlignment: Text.AlignVCenter
+            renderType: Text.NativeRendering
         }
 
         Label
@@ -137,6 +140,7 @@ Item
             // FIXED-LINE-HEIGHT:
             height: 18 * screenScaleFactor // TODO: Theme!
             verticalAlignment: Text.AlignVCenter
+            renderType: Text.NativeRendering
         }
     }
 
@@ -213,6 +217,7 @@ Item
                 text: i18n.i18nc("@info", "All jobs are printed.")
                 color: UM.Theme.getColor("monitor_text_primary")
                 font: UM.Theme.getFont("medium") // 14pt, regular
+                renderType: Text.NativeRendering
             }
 
             Item

plugins/UM3NetworkPrinting/resources/qml/PrintJobContextMenuItem.qml

@@ -16,6 +16,7 @@ Button {
         text: parent.text
         horizontalAlignment: Text.AlignLeft;
         verticalAlignment: Text.AlignVCenter;
+        renderType: Text.NativeRendering;
     }
     height: visible ? 39 * screenScaleFactor : 0; // TODO: Theme!
     hoverEnabled: true;

plugins/UM3NetworkPrinting/resources/qml/PrintWindow.qml

@@ -78,6 +78,7 @@ UM.Dialog {
             height: 20 * screenScaleFactor;
             text: catalog.i18nc("@label", "Printer selection");
             wrapMode: Text.Wrap;
+            renderType: Text.NativeRendering;
         }
 
         ComboBox {

plugins/UM3NetworkPrinting/src/ClusterUM3OutputDevice.py

@@ -535,6 +535,7 @@ class ClusterUM3OutputDevice(NetworkedPrinterOutputDevice):
             extruder.setMaterial(self._createMaterialOutputModel(extruder_data.get("material", {})))
 
         configuration.setExtruderConfigurations(extruders)
+        configuration.setPrinterType(data.get("machine_variant", ""))
         print_job.updateConfiguration(configuration)
         print_job.setCompatibleMachineFamilies(data.get("compatible_machine_families", []))
         print_job.stateChanged.connect(self._printJobStateChanged)

plugins/UM3NetworkPrinting/src/DiscoverUM3Action.py

@@ -34,7 +34,10 @@ class DiscoverUM3Action(MachineAction):
 
         self.__additional_components_view = None #type: Optional[QObject]
 
-        CuraApplication.getInstance().engineCreatedSignal.connect(self._createAdditionalComponentsView)
+        self._application = CuraApplication.getInstance()
+        self._api = self._application.getCuraAPI()
+
+        self._application.engineCreatedSignal.connect(self._createAdditionalComponentsView)
 
         self._last_zero_conf_event_time = time.time() #type: float
 
@@ -50,7 +53,7 @@ class DiscoverUM3Action(MachineAction):
     def startDiscovery(self):
         if not self._network_plugin:
             Logger.log("d", "Starting device discovery.")
-            self._network_plugin = CuraApplication.getInstance().getOutputDeviceManager().getOutputDevicePlugin("UM3NetworkPrinting")
+            self._network_plugin = self._application.getOutputDeviceManager().getOutputDevicePlugin("UM3NetworkPrinting")
             self._network_plugin.discoveredDevicesChanged.connect(self._onDeviceDiscoveryChanged)
             self.discoveredDevicesChanged.emit()
 
@@ -105,72 +108,27 @@ class DiscoverUM3Action(MachineAction):
         else:
             return []
 
-    @pyqtSlot(str)
-    def setGroupName(self, group_name: str) -> None:
-        Logger.log("d", "Attempting to set the group name of the active machine to %s", group_name)
-        global_container_stack = CuraApplication.getInstance().getGlobalContainerStack()
-        if global_container_stack:
-            meta_data = global_container_stack.getMetaData()
-            if "group_name" in meta_data:
-                previous_connect_group_name = meta_data["group_name"]
-                global_container_stack.setMetaDataEntry("group_name", group_name)
-                # Find all the places where there is the same group name and change it accordingly
-                self._replaceContainersMetadata(key = "group_name", value = previous_connect_group_name, new_value = group_name)
-            else:
-                global_container_stack.setMetaDataEntry("group_name", group_name)
-            # Set the default value for "hidden", which is used when you have a group with multiple types of printers
-            global_container_stack.setMetaDataEntry("hidden", False)
-
+    @pyqtSlot()
+    def refreshConnections(self) -> None:
         if self._network_plugin:
-            # Ensure that the connection states are refreshed.
             self._network_plugin.refreshConnections()
 
-    ##  Find all container stacks that has the pair 'key = value' in its metadata and replaces the value with 'new_value'
-    def _replaceContainersMetadata(self, key: str, value: str, new_value: str) -> None:
-        machines = CuraContainerRegistry.getInstance().findContainerStacks(type="machine")
-        for machine in machines:
-            if machine.getMetaDataEntry(key) == value:
-                machine.setMetaDataEntry(key, new_value)
-
-    # Associates the currently active machine with the given printer device. The network connection information will be
-    # stored into the metadata of the currently active machine.
-    @pyqtSlot(QObject)
-    def associateActiveMachineWithPrinterDevice(self, printer_device: Optional["PrinterOutputDevice"]) -> None:
-        if self._network_plugin:
-            self._network_plugin.associateActiveMachineWithPrinterDevice(printer_device)
-
-    @pyqtSlot(result = str)
-    def getStoredKey(self) -> str:
-        global_container_stack = CuraApplication.getInstance().getGlobalContainerStack()
-        if global_container_stack:
-            meta_data = global_container_stack.getMetaData()
-            if "um_network_key" in meta_data:
-                return global_container_stack.getMetaDataEntry("um_network_key")
-
-        return ""
-
+    # TODO: Improve naming
+    # TODO: CHANGE TO HOSTNAME
     @pyqtSlot(result = str)
     def getLastManualEntryKey(self) -> str:
         if self._network_plugin:
             return self._network_plugin.getLastManualDevice()
         return ""
 
+    # TODO: Better naming needed. Exists where? On the current machine? On all machines?
+    # TODO: CHANGE TO HOSTNAME
     @pyqtSlot(str, result = bool)
     def existsKey(self, key: str) -> bool:
         metadata_filter = {"um_network_key": key}
         containers = CuraContainerRegistry.getInstance().findContainerStacks(type="machine", **metadata_filter)
         return bool(containers)
 
-    @pyqtSlot()
-    def loadConfigurationFromPrinter(self) -> None:
-        machine_manager = CuraApplication.getInstance().getMachineManager()
-        hotend_ids = machine_manager.printerOutputDevices[0].hotendIds
-        for index in range(len(hotend_ids)):
-            machine_manager.printerOutputDevices[0].hotendIdChanged.emit(index, hotend_ids[index])
-        material_ids = machine_manager.printerOutputDevices[0].materialIds
-        for index in range(len(material_ids)):
-            machine_manager.printerOutputDevices[0].materialIdChanged.emit(index, material_ids[index])
-
     def _createAdditionalComponentsView(self) -> None:
         Logger.log("d", "Creating additional ui components for UM3.")
 
@@ -179,10 +137,10 @@ class DiscoverUM3Action(MachineAction):
         if not plugin_path:
             return
         path = os.path.join(plugin_path, "resources/qml/UM3InfoComponents.qml")
-        self.__additional_components_view = CuraApplication.getInstance().createQmlComponent(path, {"manager": self})
+        self.__additional_components_view = self._application.createQmlComponent(path, {"manager": self})
         if not self.__additional_components_view:
             Logger.log("w", "Could not create ui components for UM3.")
             return
 
         # Create extra components
-        CuraApplication.getInstance().addAdditionalComponent("monitorButtons", self.__additional_components_view.findChild(QObject, "networkPrinterConnectButton"))
+        self._application.addAdditionalComponent("monitorButtons", self.__additional_components_view.findChild(QObject, "networkPrinterConnectButton"))

plugins/UM3NetworkPrinting/src/UM3OutputDevicePlugin.py

@@ -5,11 +5,11 @@ import os
 from queue import Queue
 from threading import Event, Thread
 from time import time
-from typing import Optional, TYPE_CHECKING, Dict
+from typing import Optional, TYPE_CHECKING, Dict, Callable
 
 from zeroconf import Zeroconf, ServiceBrowser, ServiceStateChange, ServiceInfo
 
-from PyQt5.QtNetwork import QNetworkRequest, QNetworkAccessManager
+from PyQt5.QtNetwork import QNetworkRequest, QNetworkReply, QNetworkAccessManager
 from PyQt5.QtCore import QUrl
 from PyQt5.QtGui import QDesktopServices
 
@@ -39,6 +39,22 @@ if TYPE_CHECKING:
 i18n_catalog = i18nCatalog("cura")
 
 
+#
+# Represents a request for adding a manual printer. It has the following fields:
+#  - address: The string of the (IP) address of the manual printer
+#  - callback: (Optional) Once the HTTP request to the printer to get printer information is done, whether successful
+#              or not, this callback will be invoked to notify about the result. The callback must have a signature of
+#                  func(success: bool, address: str) -> None
+#  - network_reply: This is the QNetworkReply instance for this request if the request has been issued and still in
+#                   progress. It is kept here so we can cancel a request when needed.
+#
+class ManualPrinterRequest:
+    def __init__(self, address: str, callback: Optional[Callable[[bool, str], None]] = None) -> None:
+        self.address = address
+        self.callback = callback
+        self.network_reply = None  # type: Optional["QNetworkReply"]
+
+
 ##      This plugin handles the connection detection & creation of output device objects for the UM3 printer.
 #       Zero-Conf is used to detect printers, which are saved in a dict.
 #       If we discover a printer that has the same key as the active machine instance a connection is made.
@@ -51,11 +67,11 @@ class UM3OutputDevicePlugin(OutputDevicePlugin):
 
     def __init__(self):
         super().__init__()
-        
         self._zero_conf = None
         self._zero_conf_browser = None
 
         self._application = CuraApplication.getInstance()
+        self._api = self._application.getCuraAPI()
 
         # Create a cloud output device manager that abstracts all cloud connection logic away.
         self._cloud_output_device_manager = CloudOutputDeviceManager()
@@ -80,11 +96,13 @@ class UM3OutputDevicePlugin(OutputDevicePlugin):
         self._cluster_api_prefix = "/cluster-api/v" + self._cluster_api_version + "/"
 
         # Get list of manual instances from preferences
-        self._preferences = CuraApplication.getInstance().getPreferences()
+        self._preferences = self._application.getPreferences()
         self._preferences.addPreference("um3networkprinting/manual_instances",
                                         "")  # A comma-separated list of ip adresses or hostnames
 
-        self._manual_instances = self._preferences.getValue("um3networkprinting/manual_instances").split(",")
+        manual_instances = self._preferences.getValue("um3networkprinting/manual_instances").split(",")
+        self._manual_instances = {address: ManualPrinterRequest(address)
+                                  for address in manual_instances}  # type: Dict[str, ManualPrinterRequest]
 
         # Store the last manual entry key
         self._last_manual_entry_key = ""  # type: str
@@ -98,7 +116,7 @@ class UM3OutputDevicePlugin(OutputDevicePlugin):
         self._service_changed_request_thread = Thread(target=self._handleOnServiceChangedRequests, daemon=True)
         self._service_changed_request_thread.start()
 
-        self._account = self._application.getCuraAPI().account
+        self._account = self._api.account
 
         # Check if cloud flow is possible when user logs in
         self._account.loginStateChanged.connect(self.checkCloudFlowIsPossible)
@@ -149,10 +167,11 @@ class UM3OutputDevicePlugin(OutputDevicePlugin):
         for address in self._manual_instances:
             if address:
                 self.addManualDevice(address)
-        self.resetLastManualDevice()
+        self.resetLastManu
     
+    # TODO: CHANGE TO HOSTNAME
     def refreshConnections(self):
-        active_machine = CuraApplication.getInstance().getGlobalContainerStack()
+        active_machine = self._application.getGlobalContainerStack()
         if not active_machine:
             return
 
@@ -179,14 +198,12 @@ class UM3OutputDevicePlugin(OutputDevicePlugin):
             return
         if self._discovered_devices[key].isConnected():
             # Sometimes the status changes after changing the global container and maybe the device doesn't belong to this machine
-            um_network_key = CuraApplication.getInstance().getGlobalContainerStack().getMetaDataEntry("um_network_key")
+            um_network_key = self._application.getGlobalContainerStack().getMetaDataEntry("um_network_key")
             if key == um_network_key:
                 self.getOutputDeviceManager().addOutputDevice(self._discovered_devices[key])
                 self.checkCloudFlowIsPossible(None)
         else:
             self.getOutputDeviceManager().removeOutputDevice(key)
-            if key.startswith("manual:"):
-                self.removeManualDeviceSignal.emit(self.getPluginId(), key, self._discovered_devices[key].address)
 
     def stop(self):
         if self._zero_conf is not None:
@@ -198,7 +215,10 @@ class UM3OutputDevicePlugin(OutputDevicePlugin):
         # This plugin should always be the fallback option (at least try it):
         return ManualDeviceAdditionAttempt.POSSIBLE
 
-    def removeManualDevice(self, key, address = None):
+    def removeManualDevice(self, key: str, address: Optional[str] = None) -> None:
+        if key not in self._discovered_devices and address is not None:
+            key = "manual:%s" % address
+
         if key in self._discovered_devices:
             if not address:
                 address = self._discovered_devices[key].ipAddress
@@ -206,15 +226,22 @@ class UM3OutputDevicePlugin(OutputDevicePlugin):
             self.resetLastManualDevice()
 
         if address in self._manual_instances:
-            self._manual_instances.remove(address)
-            self._preferences.setValue("um3networkprinting/manual_instances", ",".join(self._manual_instances))
+            manual_printer_request = self._manual_instances.pop(address)
+            self._preferences.setValue("um3networkprinting/manual_instances", ",".join(self._manual_instances.keys()))
 
-        self.removeManualDeviceSignal.emit(self.getPluginId(), key, address)
+            if manual_printer_request.network_reply is not None:
+                manual_printer_request.network_reply.abort()
 
-    def addManualDevice(self, address):
-        if address not in self._manual_instances:
-            self._manual_instances.append(address)
-            self._preferences.setValue("um3networkprinting/manual_instances", ",".join(self._manual_instances))
+            if manual_printer_request.callback is not None:
+                self._application.callLater(manual_printer_request.callback, False, address)
+
+    def addManualDevice(self, address: str, callback: Optional[Callable[[bool, str], None]] = None) -> None:
+        if address in self._manual_instances:
+            Logger.log("i", "Manual printer with address [%s] has already been added, do nothing", address)
+            return
+
+        self._manual_instances[address] = ManualPrinterRequest(address, callback = callback)
+        self._preferences.setValue("um3networkprinting/manual_instances", ",".join(self._manual_instances.keys()))
 
         instance_name = "manual:%s" % address
         properties = {
@@ -230,7 +257,8 @@ class UM3OutputDevicePlugin(OutputDevicePlugin):
             self._onAddDevice(instance_name, address, properties)
         self._last_manual_entry_key = instance_name
 
-        self._checkManualDevice(address)
+        reply = self._checkManualDevice(address)
+        self._manual_instances[address].network_reply = reply
 
     def _createMachineFromDiscoveredPrinter(self, key: str) -> None:
         discovered_device = self._discovered_devices.get(key)
@@ -245,56 +273,22 @@ class UM3OutputDevicePlugin(OutputDevicePlugin):
                    key, group_name, machine_type_id)
 
         self._application.getMachineManager().addMachine(machine_type_id, group_name)
+        
         # connect the new machine to that network printer
-        self.associateActiveMachineWithPrinterDevice(discovered_device)
+        self._api.machines.addOutputDeviceToCurrentMachine(discovered_device)
+
         # ensure that the connection states are refreshed.
         self.refreshConnections()
 
-    def associateActiveMachineWithPrinterDevice(self, printer_device: Optional["PrinterOutputDevice"]) -> None:
-        if not printer_device:
-            return
-
-        Logger.log("d", "Attempting to set the network key of the active machine to %s", printer_device.key)
-
-        global_container_stack = CuraApplication.getInstance().getGlobalContainerStack()
-        if not global_container_stack:
-            return
-
-        meta_data = global_container_stack.getMetaData()
-
-        if "um_network_key" in meta_data:  # Global stack already had a connection, but it's changed.
-            old_network_key = meta_data["um_network_key"]
-            # Since we might have a bunch of hidden stacks, we also need to change it there.
-            metadata_filter = {"um_network_key": old_network_key}
-            containers = self._application.getContainerRegistry().findContainerStacks(type = "machine", **metadata_filter)
-
-            for container in containers:
-                container.setMetaDataEntry("um_network_key", printer_device.key)
-
-                # Delete old authentication data.
-                Logger.log("d", "Removing old authentication id %s for device %s",
-                           global_container_stack.getMetaDataEntry("network_authentication_id", None), printer_device.key)
-
-                container.removeMetaDataEntry("network_authentication_id")
-                container.removeMetaDataEntry("network_authentication_key")
-
-                # Ensure that these containers do know that they are configured for network connection
-                container.addConfiguredConnectionType(printer_device.connectionType.value)
-
-        else:  # Global stack didn't have a connection yet, configure it.
-            global_container_stack.setMetaDataEntry("um_network_key", printer_device.key)
-            global_container_stack.addConfiguredConnectionType(printer_device.connectionType.value)
-
-        self.refreshConnections()
-
-    def _checkManualDevice(self, address: str) -> None:
+    def _checkManualDevice(self, address: str) -> Optional[QNetworkReply]:
         # Check if a UM3 family device exists at this address.
         # If a printer responds, it will replace the preliminary printer created above
         # origin=manual is for tracking back the origin of the call
         url = QUrl("http://" + address + self._api_prefix + "system")
         name_request = QNetworkRequest(url)
-        self._network_manager.get(name_request)
+        return self._network_manager.get(name_request)
 
+    ##  This is the function which handles the above network request's reply when it comes back.
     def _onNetworkRequestFinished(self, reply: "QNetworkReply") -> None:
         reply_url = reply.url().toString()
 
@@ -319,6 +313,12 @@ class UM3OutputDevicePlugin(OutputDevicePlugin):
                 Logger.log("e", "Something went wrong converting the JSON.")
                 return
 
+            if address in self._manual_instances:
+                manual_printer_request = self._manual_instances[address]
+                manual_printer_request.network_reply = None
+                if manual_printer_request.callback is not None:
+                    self._application.callLater(manual_printer_request.callback, True, address)
+
             has_cluster_capable_firmware = Version(system_info["firmware"]) > self._min_cluster_version
             instance_name = "manual:%s" % address
             properties = {
@@ -362,10 +362,6 @@ class UM3OutputDevicePlugin(OutputDevicePlugin):
                 self._onRemoveDevice(instance_name)
                 self._onAddDevice(instance_name, address, properties)
 
-        if device and address in self._manual_instances:
-            self.getOutputDeviceManager().addOutputDevice(device)
-            self.addManualDeviceSignal.emit(self.getPluginId(), device.getId(), address, properties)
-
     def _onRemoveDevice(self, device_id: str) -> None:
         device = self._discovered_devices.pop(device_id, None)
         if device:
@@ -401,11 +397,13 @@ class UM3OutputDevicePlugin(OutputDevicePlugin):
             device = ClusterUM3OutputDevice.ClusterUM3OutputDevice(name, address, properties)
         else:
             device = LegacyUM3OutputDevice.LegacyUM3OutputDevice(name, address, properties)
-        self._application.getDiscoveredPrintersModel().addDiscoveredPrinter(address, device.getId(), name, self._createMachineFromDiscoveredPrinter, properties[b"printer_type"].decode("utf-8"), device)
+        self._application.getDiscoveredPrintersModel().addDiscoveredPrinter(
+            address, device.getId(), properties[b"name"].decode("utf-8"), self._createMachineFromDiscoveredPrinter,
+            properties[b"printer_type"].decode("utf-8"), device)
         self._discovered_devices[device.getId()] = device
         self.discoveredDevicesChanged.emit()
 
-        global_container_stack = CuraApplication.getInstance().getGlobalContainerStack()
+        global_container_stack = self._application.getGlobalContainerStack()
         if global_container_stack and device.getId() == global_container_stack.getMetaDataEntry("um_network_key"):
             # Ensure that the configured connection type is set.
             global_container_stack.addConfiguredConnectionType(device.connectionType.value)
@@ -425,7 +423,7 @@ class UM3OutputDevicePlugin(OutputDevicePlugin):
             self._service_changed_request_event.wait(timeout = 5.0)
 
             # Stop if the application is shutting down
-            if CuraApplication.getInstance().isShuttingDown():
+            if self._application.isShuttingDown():
                 return
 
             self._service_changed_request_event.clear()

plugins/USBPrinting/USBPrinterOutputDeviceManager.py

@@ -4,6 +4,8 @@
 import threading
 import time
 import serial.tools.list_ports
+from os import environ
+from re import search
 
 from PyQt5.QtCore import QObject, pyqtSignal
 
@@ -112,6 +114,27 @@ class USBPrinterOutputDeviceManager(QObject, OutputDevicePlugin):
                 port = (port.device, port.description, port.hwid)
             if only_list_usb and not port[2].startswith("USB"):
                 continue
+
+            # To prevent cura from messing with serial ports of other devices,
+            # filter by regular expressions passed in as environment variables.
+            # Get possible patterns with python3 -m serial.tools.list_ports -v
+
+            # set CURA_DEVICENAMES=USB[1-9] -> e.g. not matching /dev/ttyUSB0
+            pattern = environ.get('CURA_DEVICENAMES')
+            if pattern and not search(pattern, port[0]):
+                continue
+
+            # set CURA_DEVICETYPES=CP2102 -> match a type of serial converter
+            pattern = environ.get('CURA_DEVICETYPES')
+            if pattern and not search(pattern, port[1]):
+                continue
+
+            # set CURA_DEVICEINFOS=LOCATION=2-1.4 -> match a physical port
+            # set CURA_DEVICEINFOS=VID:PID=10C4:EA60 -> match a vendor:product
+            pattern = environ.get('CURA_DEVICEINFOS')
+            if pattern and not search(pattern, port[2]):
+                continue
+
             base_list += [port[0]]
 
         return list(base_list)

plugins/VersionUpgrade/VersionUpgrade40to41/VersionUpgrade40to41.py

@@ -3,6 +3,7 @@
 
 import configparser
 import io
+import uuid
 from typing import Dict, List, Tuple
 
 from UM.VersionUpgrade import VersionUpgrade
@@ -18,6 +19,7 @@ _renamed_quality_profiles = {
     "gmax15plus_pla_very_thick": "gmax15plus_global_very_thick"
 } # type: Dict[str, str]
 
+
 ##  Upgrades configurations from the state they were in at version 4.0 to the
 #   state they should be in at version 4.1.
 class VersionUpgrade40to41(VersionUpgrade):
@@ -95,6 +97,13 @@ class VersionUpgrade40to41(VersionUpgrade):
         if parser["containers"]["4"] in _renamed_quality_profiles:
             parser["containers"]["4"] = _renamed_quality_profiles[parser["containers"]["4"]]
 
+        # Assign a GlobalStack to a unique group_id. If the GlobalStack has a UM network connection, use the UM network
+        # key as the group_id.
+        if "um_network_key" in parser["metadata"]:
+            parser["metadata"]["group_id"] = parser["metadata"]["um_network_key"]
+        elif "group_id" not in parser["metadata"]:
+            parser["metadata"]["group_id"] = str(uuid.uuid4())
+
         result = io.StringIO()
         parser.write(result)
         return [filename], [result.getvalue()]

plugins/XRayView/XRayView.py

@@ -10,21 +10,21 @@ from UM.Math.Color import Color
 from UM.PluginRegistry import PluginRegistry
 from UM.Platform import Platform
 from UM.Event import Event
-from UM.View.View import View
 from UM.Scene.Iterator.BreadthFirstIterator import BreadthFirstIterator
 
 from UM.View.RenderBatch import RenderBatch
 from UM.View.GL.OpenGL import OpenGL
 
 from cura.CuraApplication import CuraApplication
+from cura.CuraView import CuraView
 from cura.Scene.ConvexHullNode import ConvexHullNode
 
 from . import XRayPass
 
 ## View used to display a see-through version of objects with errors highlighted.
-class XRayView(View):
+class XRayView(CuraView):
     def __init__(self):
-        super().__init__()
+        super().__init__(parent = None, use_empty_menu_placeholder = True)
 
         self._xray_shader = None
         self._xray_pass = None

plugins/XmlMaterialProfile/XmlMaterialProfile.py

@@ -144,7 +144,7 @@ class XmlMaterialProfile(InstanceContainer):
         # setting_version is derived from the "version" tag in the schema, so don't serialize it into a file
         if ignored_metadata_keys is None:
             ignored_metadata_keys = set()
-        ignored_metadata_keys |= {"setting_version", "definition", "status", "variant", "type", "base_file", "approximate_diameter", "id", "container_type", "name"}
+        ignored_metadata_keys |= {"setting_version", "definition", "status", "variant", "type", "base_file", "approximate_diameter", "id", "container_type", "name", "compatible"}
         # remove the keys that we want to ignore in the metadata
         for key in ignored_metadata_keys:
             if key in metadata:
@@ -1179,6 +1179,7 @@ class XmlMaterialProfile(InstanceContainer):
         "adhesion tendency": "material_adhesion_tendency",
         "surface energy": "material_surface_energy",
         "shrinkage percentage": "material_shrinkage_percentage",
+        "build volume temperature": "build_volume_temperature",
     }
     __unmapped_settings = [
         "hardware compatible",

resources/bundled_packages/cura.json

@@ -33,6 +33,23 @@
             }
         }
     },
+    "AMFReader": {
+        "package_info": {
+            "package_id": "AMFReader",
+            "package_type": "plugin",
+            "display_name": "AMF Reader",
+            "description": "Provides support for reading AMF files.",
+            "package_version": "1.0.0",
+            "sdk_version": "6.0.0",
+            "website": "https://ultimaker.com",
+            "author": {
+                "author_id": "fieldOfView",
+                "display_name": "fieldOfView",
+                "email": "plugins@ultimaker.com",
+                "website": "https://ultimaker.com"
+            }
+        }
+    },
     "CuraDrive": {
         "package_info": {
             "package_id": "CuraDrive",

resources/definitions/101Hero.def.json

@@ -38,7 +38,7 @@
         "speed_wall": { "value": "speed_print * 0.7" },
         "speed_topbottom": { "value": "speed_print * 0.7" },
         "speed_layer_0": { "value": "speed_print * 0.7" },
-        "gantry_height": { "default_value": 0 },
+        "gantry_height": { "value": "0" },
         "retraction_speed": { "default_value" : 10 },
         "retraction_amount": { "default_value" : 2.5 },
         "machine_gcode_flavor": { "default_value": "RepRap (Marlin/Sprinter)" },

resources/definitions/3dator.def.json

@@ -45,7 +45,7 @@
             ]
         },
         "gantry_height": {
-            "default_value": 30
+            "value": "30"
         },
         "machine_start_gcode": {
             "default_value": ";Sliced at: {day} {date} {time}\nM104 S{material_print_temperature} ;set temperatures\nM140 S{material_bed_temperature}\nM109 S{material_print_temperature} ;wait for temperatures\nM190 S{material_bed_temperature}\nG21  ;metric values\nG90  ;absolute positioning\nM82  ;set extruder to absolute mode\nM107  ;start with the fan off\nG28 Z0  ;move Z to min endstops\nG28 X0 Y0  ;move X/Y to min endstops\nG29  ;Auto Level\nG1 Z0.6 F{speed_travel} ;move the Nozzle near the Bed\nG92 E0\nG1 Y0  ;zero the extruded length\nG1 X10 E30 F500  ;printing a Line from right to left\nG92 E0  ;zero the extruded length again\nG1 Z2\nG1 F{speed_travel}\nM117 Printing...;Put printing message on LCD screen\nM150 R255 U255 B255 P4 ;Change LED Color to white"      },

resources/definitions/Mark2_for_Ultimaker2.def.json

@@ -8,12 +8,12 @@
         "author": "TheUltimakerCommunity",
         "manufacturer": "Foehnsturm",
         "category": "Other",
+        "weight": 0,
         "has_variants": true,
         "has_materials": true,
         "has_machine_materials": false,
         "has_machine_quality": false,
         "has_variant_materials": false,
-        "weight": 2,
         "file_formats": "text/x-gcode",
         "icon": "icon_ultimaker.png",
         "platform": "ultimaker2_platform.obj",
@@ -37,7 +37,7 @@
             "default_value": 203
         },
         "gantry_height": {
-            "default_value": 52
+            "value": "52"
         },
         "machine_center_is_zero": {
             "default_value": false

resources/definitions/alfawise_u20.def.json

@@ -39,7 +39,7 @@
             "default_value": false
         },
         "gantry_height": {
-            "default_value": 10
+            "value": "10"
         },
         "machine_gcode_flavor": {
             "default_value": "RepRap (Marlin/Sprinter)"

resources/definitions/alfawise_u30.def.json

@@ -36,7 +36,7 @@
         "retraction_enable": { "default_value": true },
         "retraction_amount": { "default_value": 5 },
         "retraction_speed": { "default_value": 45 },
-        "gantry_height": { "default_value": 25 },
+        "gantry_height": { "value": "25" },
         "machine_width": { "default_value": 220 },
         "machine_height": { "default_value": 250 },
         "machine_depth": { "default_value": 220 },

resources/definitions/alya3dp.def.json

@@ -30,7 +30,7 @@
         "machine_height":              {   "default_value": 133             },
         "machine_depth":               {   "default_value": 100             },
         "machine_center_is_zero":      {   "default_value": false           },
-        "gantry_height":               {   "default_value": 55             },
+        "gantry_height":               {   "value": "55"},
         "retraction_amount":           {   "default_value": 1.5 },
         "support_enable":              {   "default_value": true},
         "machine_head_with_fans_polygon": {

resources/definitions/alyanx3dp.def.json

@@ -30,7 +30,7 @@
         "machine_height":              {   "default_value": 170             },
         "machine_depth":               {   "default_value": 160             },
         "machine_center_is_zero":      {   "default_value": false           },
-        "gantry_height":               {   "default_value": 55             },
+        "gantry_height":               {   "value": "55"},
         "retraction_amount":           {   "default_value": 1.5 },
         "support_enable":              {   "default_value": true},
         "machine_head_with_fans_polygon": {

resources/definitions/anet_a6.def.json

@@ -0,0 +1,45 @@
+{
+    "version": 2,
+    "name": "Anet A6",
+    "inherits": "fdmprinter",
+    "metadata": {
+        "visible": true,
+        "author": "Mark",
+        "manufacturer": "Anet",
+        "file_formats": "text/x-gcode",
+        "platform": "aneta6_platform.stl",
+        "platform_offset": [0, -3.4, 0],
+        "machine_extruder_trains":
+        {
+            "0": "anet_a6_extruder_0"
+        }
+    },
+
+    "overrides": {
+        "machine_name": { "default_value": "Anet A6" },
+        "machine_heated_bed": {
+            "default_value": true
+        },
+        "machine_width": {
+            "default_value": 220
+        },
+        "machine_height": {
+            "default_value": 250
+        },
+        "machine_depth": {
+            "default_value": 220
+        },
+        "machine_center_is_zero": {
+            "default_value": false
+        },
+        "gantry_height": {
+            "value": "55"
+        },
+        "machine_start_gcode": {
+            "default_value": "G21 ;metric values\nG90 ;absolute positioning\nM82 ;set extruder to absolute mode\nM107 ;start with the fan off\nG28 X0 Y0 ;move X/Y to min endstops\nG28 Z0 ;move Z to min endstops\nM84 ;steppers off\nM0 S12 ;wait 12 seconds\nM17 ;turn steppers on\nG1 Z10.0 F300 ;move the platform down 10mm\nG92 E0 ;zero the extruded length\nG1 F200 E8 ;extrude 8mm of feed stock\nG92 E0 ;zero the extruded length again\nM0 S5 ;wait 5 seconds\nG1 F9000\nM117 Printing..."
+        },
+        "machine_end_gcode": {
+            "default_value": "M104 S0 ;extruder heater off\nM140 S0 ;heated bed heater off (if you have it)\nG91 ;relative positioning\nG1 E-1 F300  ;retract the filament a bit before lifting the nozzle, to release some of the pressure\nG1 Z+4 E-5 X-20 Y-20 F9000 ;move Z up a bit and retract filament even more\nG28 X0 Y0 ;move X/Y to min endstops, so the head is out of the way\nG1 Y210 F9000 ;move out to get part off\nM84 ;steppers off\nG90 ;absolute positioning"
+        }
+    }
+}

resources/definitions/anycubic_4max.def.json

@@ -50,7 +50,7 @@
         "jerk_wall": { "value": "math.ceil(jerk_print * 10 / 25)" },
         "jerk_wall_0": { "value": "math.ceil(jerk_wall * 5 / 10)" },
 
-        "gantry_height": { "default_value": 25.0 },
+        "gantry_height": { "value": "25.0" },
         "skin_overlap": { "value": "10" },
 
         "acceleration_enabled": { "value": "True" },

resources/definitions/anycubic_chiron.def.json

@@ -52,7 +52,7 @@
         },
         "gantry_height":
         {
-            "default_value": 35
+            "value": "35"
         },
         "machine_head_with_fans_polygon":
         {

resources/definitions/anycubic_i3_mega.def.json

@@ -46,7 +46,7 @@
         },
         "gantry_height":
         {
-            "default_value": 0
+            "value": "0"
         },
         "machine_gcode_flavor":
         {

resources/definitions/bibo2_dual.def.json

@@ -64,7 +64,7 @@
             ]
         },
         "gantry_height": {
-            "default_value": 12
+            "value": "12"
         },
         "machine_use_extruder_offset_to_offset_coords": {
             "default_value": true

resources/definitions/builder_premium_large.def.json

@@ -93,7 +93,7 @@
         "machine_nozzle_heat_up_speed": { "default_value": 2 },
         "machine_nozzle_cool_down_speed": { "default_value": 2 },
         "machine_head_polygon": { "default_value": [[-75, -18],[-75, 35],[18, 35],[18, -18]] },
-        "gantry_height": { "default_value": 55 },
+        "gantry_height": { "value": "55" },
         "machine_max_feedrate_x": { "default_value": 300 },
         "machine_max_feedrate_y": { "default_value": 300 },
         "machine_max_feedrate_z": { "default_value": 40 },

resources/definitions/builder_premium_medium.def.json

@@ -93,7 +93,7 @@
         "machine_nozzle_heat_up_speed": { "default_value": 2 },
         "machine_nozzle_cool_down_speed": { "default_value": 2 },
         "machine_head_polygon": { "default_value": [[-75, -18],[-75, 35],[18, 35],[18, -18]] },
-        "gantry_height": { "default_value": 55 },
+        "gantry_height": { "value": "55" },
         "machine_max_feedrate_x": { "default_value": 300 },
         "machine_max_feedrate_y": { "default_value": 300 },
         "machine_max_feedrate_z": { "default_value": 40 },

resources/definitions/builder_premium_small.def.json

@@ -92,7 +92,7 @@
         "machine_nozzle_heat_up_speed": { "default_value": 2 },
         "machine_nozzle_cool_down_speed": { "default_value": 2 },
         "machine_head_polygon": { "default_value": [[-75, -18],[-75, 35],[18, 35],[18, -18]] },
-        "gantry_height": { "default_value": 55 },
+        "gantry_height": { "value": "55" },
         "machine_max_feedrate_x": { "default_value": 300 },
         "machine_max_feedrate_y": { "default_value": 300 },
         "machine_max_feedrate_z": { "default_value": 40 },

resources/definitions/cartesio.def.json

@@ -35,7 +35,7 @@
         "machine_extruder_count": { "default_value": 2 },
         "machine_heated_bed": { "default_value": true },
         "machine_center_is_zero": { "default_value": false },
-        "gantry_height": { "default_value": 35 },
+        "gantry_height": { "value": "35" },
         "machine_height": { "default_value": 400 },
         "machine_depth": { "default_value": 270 },
         "machine_width": { "default_value": 430 },

resources/definitions/cocoon_create_modelmaker.def.json

@@ -39,7 +39,7 @@
             "default_value": false
         },
         "gantry_height": {
-            "default_value": 10
+            "value": "10"
         },
         "machine_gcode_flavor": {
             "default_value": "RepRap (Marlin/Sprinter)"

resources/definitions/creality_cr-x.def.json

@@ -30,7 +30,7 @@
         "retraction_amount": { "default_value": 3 },
         "retraction_speed": { "default_value": 70},
         "adhesion_type": { "default_value": "skirt" },
-        "gantry_height": { "default_value": 30 },
+        "gantry_height": { "value": "30" },
         "speed_print": { "default_value": 60 },
         "speed_travel": { "default_value": 120 },
         "machine_max_acceleration_x": { "default_value": 500 },

resources/definitions/creality_cr10.def.json

@@ -71,7 +71,7 @@
             "default_value": true
         },
         "gantry_height": {
-            "default_value": 30
+            "value": "30"
         },
         "acceleration_enabled": {
             "default_value": true

resources/definitions/creality_ender3.def.json

@@ -31,7 +31,7 @@
             "default_value": true
         },
         "gantry_height": {
-            "default_value": 30
+            "value": "30"
         },
         "machine_head_polygon": {
             "default_value": [
@@ -59,6 +59,9 @@
         "jerk_travel": {
             "value": "jerk_print"
         },
+        "machine_max_jerk_z": {
+            "default_value": 0.3
+        },
         "layer_height_0": {
             "default_value": 0.2
         },
@@ -69,10 +72,10 @@
             "default_value": 0.6
         },
         "retraction_amount": {
-            "default_value": 5
+            "default_value": 6
         },
         "retraction_speed": {
-            "default_value": 40
+            "default_value": 25
         },
         "cool_min_layer_time": {
             "default_value": 10

resources/definitions/creatable_d3.def.json

@@ -25,7 +25,7 @@
         "machine_heated_bed": { "default_value": true },
         "machine_shape": { "default_value": "elliptic" },
         "machine_max_feedrate_z": { "default_value": 300 },
-        "gantry_height": {"default_value": 43},
+        "gantry_height": {"value": "43"},
         "layer_height": { "default_value": 0.1 },
         "relative_extrusion": { "default_value": false },
         "retraction_combing": { "default_value": "off" },

resources/definitions/dagoma_discoeasy200.def.json

@@ -38,7 +38,7 @@
             ]
         },
         "gantry_height": {
-            "default_value": 10
+            "value": "10"
         },
         "machine_start_gcode": {
             "default_value": ";Gcode by Cura\nG90\nM106 S255\nG28 X Y\nG1 X50\nM109 R90\nG28\nM104 S{material_print_temperature_layer_0}\nG29\nM107\nG1 X100 Y20 F3000\nG1 Z0.5\nM109 S{material_print_temperature_layer_0}\nM82\nG92 E0\nG1 F200 E10\nG92 E0\nG1 Z3\nG1 F6000\n"

resources/definitions/dagoma_magis.def.json

@@ -38,7 +38,7 @@
             ]
         },
         "gantry_height": {
-          "default_value": 0
+          "value": "0"
         },
         "machine_shape": {
             "default_value": "elliptic"

resources/definitions/dagoma_neva.def.json

@@ -38,7 +38,7 @@
             ]
         },
         "gantry_height": {
-          "default_value": 0
+          "value": "0"
         },
         "machine_shape": {
             "default_value": "elliptic"

resources/definitions/fabtotum.def.json

@@ -28,7 +28,7 @@
         "machine_end_gcode": {
             "default_value": "M104 S0 ;extruder heater off\nM140 S0 ;heated bed heater off (if you have it)\nG91 ;relative positioning\nG1 E-1 F300    ;retract the filament a bit before lifting the nozzle, to release some of the pressure\nG1 Z+0.5 E-3 X+5 Y+5 F5000 ;move Z up a bit and retract filament even more\n;end of the print\nM84 ;steppers off\nG90 ;absolute positioning\nM300 S2 ;FAB bep bep (end print)"
         },
-        "gantry_height": { "default_value": 55 },
+        "gantry_height": { "value": "55" },
         "machine_width": { "default_value": 214 },
         "machine_height": { "default_value": 241.5 },
         "machine_depth": { "default_value": 234 },

resources/definitions/fdmprinter.def.json

@@ -17,7 +17,8 @@
         {
             "0": "fdmextruder"
         },
-        "supports_usb_connection": true
+        "supports_usb_connection": true,
+        "supports_network_connection": false
     },
     "settings":
     {
@@ -227,7 +228,7 @@
                 },
                 "extruders_enabled_count":
                 {
-                    "label": "Number of Extruders that are enabled",
+                    "label": "Number of Extruders That Are Enabled",
                     "description": "Number of extruder trains that are enabled; automatically set in software",
                     "value": "machine_extruder_count",
                     "default_value": 1,
@@ -240,7 +241,7 @@
                 },
                 "machine_nozzle_tip_outer_diameter":
                 {
-                    "label": "Outer nozzle diameter",
+                    "label": "Outer Nozzle Diameter",
                     "description": "The outer diameter of the tip of the nozzle.",
                     "unit": "mm",
                     "default_value": 1,
@@ -252,7 +253,7 @@
                 },
                 "machine_nozzle_head_distance":
                 {
-                    "label": "Nozzle length",
+                    "label": "Nozzle Length",
                     "description": "The height difference between the tip of the nozzle and the lowest part of the print head.",
                     "unit": "mm",
                     "default_value": 3,
@@ -263,7 +264,7 @@
                 },
                 "machine_nozzle_expansion_angle":
                 {
-                    "label": "Nozzle angle",
+                    "label": "Nozzle Angle",
                     "description": "The angle between the horizontal plane and the conical part right above the tip of the nozzle.",
                     "unit": "°",
                     "type": "int",
@@ -276,7 +277,7 @@
                 },
                 "machine_heat_zone_length":
                 {
-                    "label": "Heat zone length",
+                    "label": "Heat Zone Length",
                     "description": "The distance from the tip of the nozzle in which heat from the nozzle is transferred to the filament.",
                     "unit": "mm",
                     "default_value": 16,
@@ -310,7 +311,7 @@
                 },
                 "machine_nozzle_heat_up_speed":
                 {
-                    "label": "Heat up speed",
+                    "label": "Heat Up Speed",
                     "description": "The speed (°C/s) by which the nozzle heats up averaged over the window of normal printing temperatures and the standby temperature.",
                     "default_value": 2.0,
                     "unit": "°C/s",
@@ -321,7 +322,7 @@
                 },
                 "machine_nozzle_cool_down_speed":
                 {
-                    "label": "Cool down speed",
+                    "label": "Cool Down Speed",
                     "description": "The speed (°C/s) by which the nozzle cools down averaged over the window of normal printing temperatures and the standby temperature.",
                     "default_value": 2.0,
                     "unit": "°C/s",
@@ -343,7 +344,7 @@
                 },
                 "machine_gcode_flavor":
                 {
-                    "label": "G-code flavour",
+                    "label": "G-code Flavour",
                     "description": "The type of g-code to be generated.",
                     "type": "enum",
                     "options":
@@ -376,7 +377,7 @@
                 },
                 "machine_disallowed_areas":
                 {
-                    "label": "Disallowed areas",
+                    "label": "Disallowed Areas",
                     "description": "A list of polygons with areas the print head is not allowed to enter.",
                     "type": "polygons",
                     "default_value":
@@ -400,7 +401,7 @@
                 },
                 "machine_head_polygon":
                 {
-                    "label": "Machine head polygon",
+                    "label": "Machine Head Polygon",
                     "description": "A 2D silhouette of the print head (fan caps excluded).",
                     "type": "polygon",
                     "default_value":
@@ -428,7 +429,7 @@
                 },
                 "machine_head_with_fans_polygon":
                 {
-                    "label": "Machine head & Fan polygon",
+                    "label": "Machine Head & Fan Polygon",
                     "description": "A 2D silhouette of the print head (fan caps included).",
                     "type": "polygon",
                     "default_value":
@@ -456,7 +457,7 @@
                 },
                 "gantry_height":
                 {
-                    "label": "Gantry height",
+                    "label": "Gantry Height",
                     "description": "The height difference between the tip of the nozzle and the gantry system (X and Y axes).",
                     "default_value": 99999999999,
                     "value": "machine_height",
@@ -488,7 +489,7 @@
                 },
                 "machine_use_extruder_offset_to_offset_coords":
                 {
-                    "label": "Offset With Extruder",
+                    "label": "Offset with Extruder",
                     "description": "Apply the extruder offset to the coordinate system.",
                     "type": "bool",
                     "default_value": true,
@@ -523,7 +524,7 @@
                     "description": "The maximum speed for the motor of the X-direction.",
                     "unit": "mm/s",
                     "type": "float",
-                    "default_value": 500,
+                    "default_value": 299792458000,
                     "settable_per_mesh": false,
                     "settable_per_extruder": false,
                     "settable_per_meshgroup": false
@@ -534,7 +535,7 @@
                     "description": "The maximum speed for the motor of the Y-direction.",
                     "unit": "mm/s",
                     "type": "float",
-                    "default_value": 500,
+                    "default_value": 299792458000,
                     "settable_per_mesh": false,
                     "settable_per_extruder": false,
                     "settable_per_meshgroup": false
@@ -545,7 +546,7 @@
                     "description": "The maximum speed for the motor of the Z-direction.",
                     "unit": "mm/s",
                     "type": "float",
-                    "default_value": 5,
+                    "default_value": 299792458000,
                     "settable_per_mesh": false,
                     "settable_per_extruder": false,
                     "settable_per_meshgroup": false
@@ -1432,7 +1433,8 @@
                         "z_seam_corner_none":     "None",
                         "z_seam_corner_inner":    "Hide Seam",
                         "z_seam_corner_outer":    "Expose Seam",
-                        "z_seam_corner_any":   "Hide or Expose Seam"
+                        "z_seam_corner_any":      "Hide or Expose Seam",
+                        "z_seam_corner_weighted": "Smart Hiding"
                     },
                     "default_value": "z_seam_corner_inner",
                     "enabled": "z_seam_type != 'random'",
@@ -2055,6 +2057,21 @@
                     "settable_per_mesh": false,
                     "minimum_value": "-273.15"
                 },
+                "build_volume_temperature":
+                {
+                    "label": "Build Volume Temperature",
+                    "description": "The temperature used for build volume. If this is 0, the build volume temperature will not be adjusted.",
+                    "unit": "°C",
+                    "type": "float",
+                    "default_value": 35,
+                    "resolve": "min(extruderValues('build_volume_temperature'))",
+                    "minimum_value": "-273.15",
+                    "minimum_value_warning": "0",
+                    "maximum_value_warning": "285",
+                    "enabled": true,
+                    "settable_per_mesh": false,
+                    "settable_per_extruder": true
+                },
                 "material_print_temperature":
                 {
                     "label": "Printing Temperature",
@@ -3527,6 +3544,20 @@
                     "enabled": "retraction_hop_enabled and extruders_enabled_count > 1",
                     "settable_per_mesh": false,
                     "settable_per_extruder": true
+                },
+                "retraction_hop_after_extruder_switch_height": 
+                {
+                    "label": "Z Hop After Extruder Switch Height",
+                    "description": "The height difference when performing a Z Hop after extruder switch.",
+                    "unit": "mm",
+                    "type": "float",
+                    "default_value": 1,
+                    "value": "retraction_hop",
+                    "minimum_value_warning": "0",
+                    "maximum_value_warning": "10",
+                    "enabled": "retraction_enable and retraction_hop_after_extruder_switch",
+                    "settable_per_mesh": false,
+                    "settable_per_extruder": true
                 }
             }
         },
@@ -5219,7 +5250,7 @@
                     "type": "bool",
                     "enabled": "extruders_enabled_count > 1",
                     "default_value": false,
-                    "resolve": "any(extruderValues('prime_tower_enable'))",
+                    "resolve": "(extruders_enabled_count > 1) and any(extruderValues('prime_tower_enable')) or (adhesion_type in ('none', 'skirt'))",
                     "settable_per_mesh": false,
                     "settable_per_extruder": false
                 },
@@ -6659,7 +6690,7 @@
                 },
                 "adaptive_layer_height_enabled":
                 {
-                    "label": "Use adaptive layers",
+                    "label": "Use Adaptive Layers",
                     "description": "Adaptive layers computes the layer heights depending on the shape of the model.",
                     "type": "bool",
                     "default_value": false,
@@ -6669,7 +6700,7 @@
                 },
                 "adaptive_layer_height_variation":
                 {
-                    "label": "Adaptive layers maximum variation",
+                    "label": "Adaptive Layers Maximum Variation",
                     "description": "The maximum allowed height different from the base layer height.",
                     "type": "float",
                     "enabled": "adaptive_layer_height_enabled",
@@ -6681,7 +6712,7 @@
                 },
                 "adaptive_layer_height_variation_step":
                 {
-                    "label": "Adaptive layers variation step size",
+                    "label": "Adaptive Layers Variation Step Size",
                     "description": "The difference in height of the next layer height compared to the previous one.",
                     "type": "float",
                     "enabled": "adaptive_layer_height_enabled",
@@ -6694,7 +6725,7 @@
                 },
                 "adaptive_layer_height_threshold":
                 {
-                    "label": "Adaptive layers threshold",
+                    "label": "Adaptive Layers Threshold",
                     "description": "Threshold whether to use a smaller layer or not. This number is compared to the tan of the steepest slope in a layer.",
                     "type": "float",
                     "enabled": "adaptive_layer_height_enabled",
@@ -7165,41 +7196,47 @@
                 }
             }
         },
-        "command_line_settings": {
+        "command_line_settings":
+        {
             "label": "Command Line Settings",
             "description": "Settings which are only used if CuraEngine isn't called from the Cura frontend.",
             "type": "category",
             "enabled": false,
             "children": {
-                "center_object": {
+                "center_object":
+                {
                     "description": "Whether to center the object on the middle of the build platform (0,0), instead of using the coordinate system in which the object was saved.",
                     "type": "bool",
                     "label": "Center Object",
                     "default_value": false,
                     "enabled": false
                 },
-                "mesh_position_x": {
+                "mesh_position_x":
+                {
                     "description": "Offset applied to the object in the x direction.",
                     "type": "float",
                     "label": "Mesh Position X",
                     "default_value": 0,
                     "enabled": false
                 },
-                "mesh_position_y": {
+                "mesh_position_y":
+                {
                     "description": "Offset applied to the object in the y direction.",
                     "type": "float",
                     "label": "Mesh Position Y",
                     "default_value": 0,
                     "enabled": false
                 },
-                "mesh_position_z": {
+                "mesh_position_z":
+                {
                     "description": "Offset applied to the object in the z direction. With this you can perform what was used to be called 'Object Sink'.",
                     "type": "float",
                     "label": "Mesh Position Z",
                     "default_value": 0,
                     "enabled": false
                 },
-                "mesh_rotation_matrix": {
+                "mesh_rotation_matrix":
+                {
                     "label": "Mesh Rotation Matrix",
                     "description": "Transformation matrix to be applied to the model when loading it from file.",
                     "type": "str",