[Draft] Group object for dimension styles

src/Mod/Draft/draftobjects/dimensionstyle.py

@@ -31,6 +31,8 @@ import FreeCAD as App
 from draftobjects.draft_annotation import DraftAnnotation
 from PySide.QtCore import QT_TRANSLATE_NOOP
 from draftviewproviders.view_dimensionstyle import ViewProviderDraftDimensionStyle
+from draftviewproviders.view_dimensionstyle import ViewProviderDimensionStylesContainer
+from draftobjects.draft_annotation import AnnotationStylesContainer
 
 if App.GuiUp:
     import FreeCADGui as Gui
@@ -46,8 +48,37 @@ def make_dimension_style(existing_dimension = None):
     DimensionStyle(obj)
     if App.GuiUp:
         ViewProviderDraftDimensionStyle(obj.ViewObject, existing_dimension)
+    get_dimension_style_container().addObject(obj)
     return obj
 
+def get_dimension_style_container():
+    """get_dimension_style_container(): returns a group object to put dimensions in"""
+    for obj in App.ActiveDocument.Objects:
+        if obj.Name == "DimensionStyleContainer":
+            return obj
+    obj = App.ActiveDocument.addObject("App::DocumentObjectGroupPython", "DimensionStyleContainer")
+    obj.Label = QT_TRANSLATE_NOOP("draft", "Dimension Styles")
+    DimensionStylesContainer(obj)
+    if App.GuiUp:
+        ViewProviderDimensionStylesContainer(obj.ViewObject)
+    return obj
+
+
+class DimensionStylesContainer(AnnotationStylesContainer):
+    """The Dimension Container"""
+
+    def __init__(self, obj):
+        super().__init__(obj)
+        self.Type = "DimensionStyleContainer"
+        obj.Proxy = self
+
+    def execute(self, obj):
+
+        g = obj.Group
+        g.sort(key=lambda o: o.Label)
+        obj.Group = g
+
+
 class DimensionStyle(DraftAnnotation):
     def __init__(self, obj):
         super().__init__(obj, "DimensionStyle")

src/Mod/Draft/draftobjects/draft_annotation.py

@@ -52,4 +52,28 @@ class DraftAnnotation:
         pass
 
     def onChanged(self, obj, prop):
-        pass
+        pass
+
+class AnnotationStylesContainer:
+    """The Annotation Container"""
+
+    def __init__(self, obj):
+
+        self.Type = "AnnotationContainer"
+        obj.Proxy = self
+
+    def execute(self, obj):
+
+        g = obj.Group
+        g.sort(key=lambda o: o.Label)
+        obj.Group = g
+
+    def __getstate__(self):
+
+        if hasattr(self, "Type"):
+            return self.Type
+
+    def __setstate__(self, state):
+
+        if state:
+            self.Type = state