Draft: fix ScaleMultiplier on annotation objects

Object auto create the property when opening an old Draft annotation
.

src/Mod/Draft/draftobjects/dimension.py

@@ -199,6 +199,8 @@ class DimensionBase(DraftAnnotation):
         obj.Dimline = App.Vector(0,1,0)
         obj.Normal = App.Vector(0,0,1)
 
+    def onDocumentRestored(self, obj):
+        super(DimensionBase, self).onDocumentRestored(obj)
 
     def execute(self, obj):
         '''Do something when recompute object'''
@@ -263,6 +265,10 @@ class LinearDimension(DimensionBase):
         obj.Start = App.Vector(0,0,0)
         obj.End = App.Vector(1,0,0)
 
+
+    def onDocumentRestored(self, obj):
+        super(LinearDimension, self).onDocumentRestored(obj)
+
     def onChanged(self,obj,prop):
         '''Do something when a property has changed'''
         if hasattr(obj, "Distance"):
@@ -377,6 +383,8 @@ class AngularDimension(DimensionBase):
         obj.Center = App.Vector(0,0,0)
         obj.Normal = App.Vector(0,0,1)
 
+    def onDocumentRestored(self, obj):
+        super(AngularDimension, self).onDocumentRestored(obj)
 
     def execute(self, fp):
         '''Do something when recompute object'''

src/Mod/Draft/draftobjects/draft_annotation.py

@@ -20,7 +20,6 @@
 # *   USA                                                                   *
 # *                                                                         *
 # ***************************************************************************
-
 """This module provides the object code for Draft Annotation.
 """
 ## @package annotation
@@ -32,9 +31,15 @@ from PySide.QtCore import QT_TRANSLATE_NOOP
 from draftutils import gui_utils
 
 class DraftAnnotation(object):
-    """The Draft Annotation Base object
-    This class is not used directly, but inherited by all annotation
+    """The Draft Annotation Base object.
+
+    This class is not used directly, but inherited by all Draft annotation
     objects.
+    
+    LinearDimension through DimensionBase
+    AngularDimension through DimensionBase
+    Label
+    Text
     """
     def __init__(self, obj, tp="Annotation"):
         """Add general Annotation properties to the object"""
@@ -42,6 +47,19 @@ class DraftAnnotation(object):
         self.Type = tp
 
 
+    def onDocumentRestored(self, obj):
+        '''Check if new properties are present after object is recreated.'''
+        if hasattr(obj, "ViewObject") and obj.ViewObject:
+            if not 'ScaleMultiplier' in obj.ViewObject.PropertiesList:
+                # annotation properties
+                _msg = QT_TRANSLATE_NOOP("Draft", 
+                                         "Adding property ScaleMultiplier to ")
+                App.Console.PrintMessage(_msg + obj.Name + "\n")
+                obj.ViewObject.addProperty("App::PropertyFloat","ScaleMultiplier",
+                                "Annotation",QT_TRANSLATE_NOOP("App::Property",
+                                "Dimension size overall multiplier"))
+                obj.ViewObject.ScaleMultiplier = 1.00
+
     def __getstate__(self):
         return self.Type
 

src/Mod/Draft/draftobjects/label.py

@@ -180,6 +180,8 @@ class Label(DraftAnnotation):
         obj.TargetPoint = App.Vector(2,-1,0)
         obj.CustomText = "Label"
 
+    def onDocumentRestored(self, obj):
+        super(Label, self).onDocumentRestored(obj)
 
     def execute(self,obj):
         '''Do something when recompute object'''

src/Mod/Draft/draftobjects/text.py

@@ -90,7 +90,6 @@ def make_text(stringslist, point=App.Vector(0,0,0), screen=False):
     return obj
 
 
-
 class Text(DraftAnnotation):
     """The Draft Text object"""
 
@@ -118,6 +117,8 @@ class Text(DraftAnnotation):
                         QT_TRANSLATE_NOOP("App::Property",
                                           "The text displayed by this object"))
 
+    def onDocumentRestored(self, obj):
+        super(Text, self).onDocumentRestored(obj)
 
     def execute(self,obj):
         '''Do something when recompute object'''