CURA-4870 Create a custom model for the machines in order to show the

printers grouped by local or networked.

cura/CuraApplication.py

@@ -59,18 +59,18 @@ from cura.Machines.Models.BuildPlateModel import BuildPlateModel
 from cura.Machines.Models.NozzleModel import NozzleModel
 from cura.Machines.Models.QualityProfilesDropDownMenuModel import QualityProfilesDropDownMenuModel
 from cura.Machines.Models.CustomQualityProfilesDropDownMenuModel import CustomQualityProfilesDropDownMenuModel
-
 from cura.Machines.Models.MultiBuildPlateModel import MultiBuildPlateModel
-
 from cura.Machines.Models.MaterialManagementModel import MaterialManagementModel
 from cura.Machines.Models.GenericMaterialsModel import GenericMaterialsModel
 from cura.Machines.Models.BrandMaterialsModel import BrandMaterialsModel
+from cura.Machines.Models.QualityManagementModel import QualityManagementModel
+from cura.Machines.Models.QualitySettingsModel import QualitySettingsModel
+from cura.Machines.Models.MachineManagementModel import MachineManagementModel
 
 from cura.Settings.SettingInheritanceManager import SettingInheritanceManager
 from cura.Settings.SimpleModeSettingsManager import SimpleModeSettingsManager
 
 from cura.Machines.VariantManager import VariantManager
-from cura.Machines.Models.QualityManagementModel import QualityManagementModel
 
 from . import PlatformPhysics
 from . import BuildVolume
@@ -87,7 +87,6 @@ from cura.Settings.ExtruderManager import ExtruderManager
 from cura.Settings.UserChangesModel import UserChangesModel
 from cura.Settings.ExtrudersModel import ExtrudersModel
 from cura.Settings.MaterialSettingsVisibilityHandler import MaterialSettingsVisibilityHandler
-from cura.Machines.Models.QualitySettingsModel import QualitySettingsModel
 from cura.Settings.ContainerManager import ContainerManager
 
 from cura.ObjectsModel import ObjectsModel
@@ -960,6 +959,7 @@ class CuraApplication(QtApplication):
         qmlRegisterType(BrandMaterialsModel, "Cura", 1, 0, "BrandMaterialsModel")
         qmlRegisterType(MaterialManagementModel, "Cura", 1, 0, "MaterialManagementModel")
         qmlRegisterType(QualityManagementModel, "Cura", 1, 0, "QualityManagementModel")
+        qmlRegisterType(MachineManagementModel, "Cura", 1, 0, "MachineManagementModel")
 
         qmlRegisterSingletonType(QualityProfilesDropDownMenuModel, "Cura", 1, 0,
                                  "QualityProfilesDropDownMenuModel", self.getQualityProfilesDropDownMenuModel)

cura/Machines/Models/MachineManagementModel.py

@@ -0,0 +1,90 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from UM.Qt.ListModel import ListModel
+
+from PyQt5.QtCore import pyqtSlot, pyqtProperty, Qt, pyqtSignal
+
+from UM.Settings.ContainerRegistry import ContainerRegistry
+from UM.Settings.ContainerStack import ContainerStack
+
+from UM.i18n import i18nCatalog
+catalog = i18nCatalog("cura")
+
+#
+# This the QML model for the quality management page.
+#
+class MachineManagementModel(ListModel):
+    NameRole = Qt.UserRole + 1
+    IdRole = Qt.UserRole + 2
+    MetaDataRole = Qt.UserRole + 3
+    GroupRole = Qt.UserRole + 4
+
+    def __init__(self, parent = None):
+        super().__init__(parent)
+        self.addRoleName(self.NameRole, "name")
+        self.addRoleName(self.IdRole, "id")
+        self.addRoleName(self.MetaDataRole, "metadata")
+        self.addRoleName(self.GroupRole, "group")
+        self._local_container_stacks = []
+        self._network_container_stacks = []
+
+        # Listen to changes
+        ContainerRegistry.getInstance().containerAdded.connect(self._onContainerChanged)
+        ContainerRegistry.getInstance().containerMetaDataChanged.connect(self._onContainerChanged)
+        ContainerRegistry.getInstance().containerRemoved.connect(self._onContainerChanged)
+        self._filter_dict = {}
+        self._update()
+
+    ##  Handler for container added/removed events from registry
+    def _onContainerChanged(self, container):
+        # We only need to update when the added / removed container is a stack.
+        if isinstance(container, ContainerStack):
+            self._update()
+
+    ##  Handler for container name change events.
+    def _onContainerNameChanged(self):
+        self._update()
+
+    ##  Private convenience function to reset & repopulate the model.
+    def _update(self):
+        items = []
+        # Remove all connections
+        for container in self._local_container_stacks:
+            container.nameChanged.disconnect(self._onContainerNameChanged)
+        for container in self._network_container_stacks:
+            container.nameChanged.disconnect(self._onContainerNameChanged)
+
+        # Get first the network enabled printers
+        network_filter_printers = {"type": "machine", "um_network_key": "*", "hidden": "False"}
+        self._network_container_stacks = ContainerRegistry.getInstance().findContainerStacks(**network_filter_printers)
+        self._network_container_stacks.sort(key = lambda i: i.getMetaDataEntry("connect_group_name"))
+
+        for container in self._network_container_stacks:
+            metadata = container.getMetaData().copy()
+            if container.getBottom():
+                metadata["definition_name"] = container.getBottom().getName()
+
+            container.nameChanged.connect(self._onContainerNameChanged)
+            items.append({"name": metadata["connect_group_name"],
+                             "id": container.getId(),
+                             "metadata": metadata,
+                             "group": catalog.i18nc("@info:title", "Network enabled printers")})
+
+        # Get now the local printes
+        local_filter_printers = {"type": "machine", "um_network_key": None}
+        self._local_container_stacks = ContainerRegistry.getInstance().findContainerStacks(**local_filter_printers)
+        self._local_container_stacks.sort(key = lambda i: i.getName())
+
+        for container in self._local_container_stacks:
+            metadata = container.getMetaData().copy()
+            if container.getBottom():
+                metadata["definition_name"] = container.getBottom().getName()
+
+            container.nameChanged.connect(self._onContainerNameChanged)
+            items.append({"name": container.getName(),
+                             "id": container.getId(),
+                             "metadata": metadata,
+                             "group": catalog.i18nc("@info:title", "Local printers")})
+
+        self.setItems(items)

resources/qml/Preferences/MachinesPage.qml

@@ -14,10 +14,7 @@ UM.ManagementPage
     id: base;
 
     title: catalog.i18nc("@title:tab", "Printers");
-    model: UM.ContainerStacksModel
+    model: Cura.MachineManagementModel { }
-    {
-        filter: {"type": "machine"}
-    }
 
     activeId: Cura.MachineManager.activeMachineId
     activeIndex: activeMachineIndex()