Added grouping action

cura/CuraApplication.py

@@ -22,6 +22,7 @@ from UM.Math.Polygon import Polygon
 
 from UM.Scene.BoxRenderer import BoxRenderer
 from UM.Scene.Selection import Selection
+from UM.Scene.GroupDecorator import GroupDecorator
 
 from UM.Operations.AddSceneNodeOperation import AddSceneNodeOperation
 from UM.Operations.RemoveSceneNodeOperation import RemoveSceneNodeOperation
@@ -417,6 +418,17 @@ class CuraApplication(QtApplication):
 
         self.getActiveMachine().setSettingValueByKey(key, value)
         
+        
+    @pyqtSlot()
+    def groupSelected(self):
+        group_node = SceneNode()
+        group_decorator = GroupDecorator()
+        group_node.addDecorator(group_decorator)
+        group_node.setParent(self.getController().getScene().getRoot())
+        for node in Selection.getAllSelectedObjects():
+            node.setParent(group_node)
+            
+
     ##  Add an output device that can be written to.
     #
     #   \param id \type{string} The identifier used to identify the device.

resources/qml/Actions.qml

@@ -3,6 +3,7 @@
 
 import QtQuick 2.2
 import QtQuick.Controls 1.1
+import UM 1.0 as UM
 
 Item {
     property alias open: openAction;
@@ -16,6 +17,7 @@ Item {
 
     property alias deleteObject: deleteObjectAction;
     property alias centerObject: centerObjectAction;
+    property alias groupObjects: groupObjectsAction;
     property alias multiplyObject: multiplyObjectAction;
     property alias splitObject: splitObjectAction;
 
@@ -121,6 +123,13 @@ Item {
         text: qsTr("Center Object on Platform");
     }
     
+    Action
+    {
+        id: groupObjectsAction
+        text: qsTr("Group objects");
+        enabled: UM.Scene.numObjectsSelected > 1 ? true: false
+    }
+
     Action {
         id: multiplyObjectAction;
         //: Duplicate object action

resources/qml/Cura.qml

@@ -348,6 +348,11 @@ UM.MainWindow {
             }
         }
         
+        groupObjects.onTriggered:
+        {
+            Printer.groupSelected()
+        }
+
         deleteAll.onTriggered: Printer.deleteAll()
         resetAllTranslation.onTriggered: Printer.resetAllTranslation()
         resetAll.onTriggered: Printer.resetAll()
@@ -373,6 +378,7 @@ UM.MainWindow {
         MenuItem { action: actions.deleteObject; }
         MenuItem { action: actions.multiplyObject; }
         MenuItem { action: actions.splitObject; }
+        MenuItem { action: actions.groupObjects;}
         MenuSeparator { }
         MenuItem { action: actions.deleteAll; }
         MenuItem { action: actions.reloadAll; }