Added MachineManagerModel to Cura

CURA-1278

cura/CuraApplication.py

@@ -36,10 +36,11 @@ from . import CuraActions
 from . import MultiMaterialDecorator
 from . import ZOffsetDecorator
 from . import CuraSplashScreen
+from . import MachineManagerModel
 
 from PyQt5.QtCore import pyqtSlot, QUrl, pyqtSignal, pyqtProperty, QEvent, Q_ENUMS
 from PyQt5.QtGui import QColor, QIcon
-from PyQt5.QtQml import qmlRegisterUncreatableType
+from PyQt5.QtQml import qmlRegisterUncreatableType, qmlRegisterSingletonType
 
 import platform
 import sys
@@ -201,6 +202,9 @@ class CuraApplication(QtApplication):
         self.setMainQml(Resources.getPath(self.ResourceTypes.QmlFiles, "Cura.qml"))
         self.initializeEngine()
 
+        qmlRegisterSingletonType(MachineManagerModel.MachineManagerModel, "Cura", 1, 0, "MachineManager",
+                                 MachineManagerModel.createMachineManagerModel)
+
         if self._engine.rootObjects:
             self.closeSplash()
 

cura/MachineManagerModel.py

@@ -0,0 +1,25 @@
+
+from PyQt5.QtCore import QObject, pyqtSlot, pyqtProperty, pyqtSignal
+from UM.Application import Application
+from UM.Signal import Signal, signalemitter
+
+class MachineManagerModel(QObject):
+    def __init__(self, parent = None):
+        super().__init__(parent)
+        Application.getInstance().globalContainerStackChanged.connect(self._onGlobalContainerChanged)
+
+    globalContainerChanged = pyqtSignal()
+
+    def _onGlobalContainerChanged(self):
+        self.globalContainerChanged.emit()
+
+    @pyqtSlot(str)
+    def setActiveMachine(self, stack_id):
+        pass
+
+    @pyqtProperty(str, notify = globalContainerChanged)
+    def activeMachineId(self):
+        return Application.getInstance().getGlobalContainerStack().getId()
+
+def createMachineManagerModel(engine, script_engine):
+    return MachineManagerModel()