Added code to highlight in red balloons that reference parts not drawn in the view

ahb_cmd_view_annotate.py

@@ -3,7 +3,7 @@ import FreeCAD as App
 
 class AHB_View_Annotate:
 	def GetResources(self):
-        return {"MenuText": "View/Annotate",
+		return {"MenuText": "Annotate view",
 				"ToolTip": "Annotates a TechDraw view with object names",
 				"Pixmap": ""
 				}

ahb_techdraw_extensions.py

@@ -150,6 +150,18 @@ class TechDrawExtensions:
 				cursor.setViewPos(App.Vector(selected_balloons[0].OriginX, selected_balloons[0].OriginY))
 				cursor.setVisible(True)
 				
+	def refreshView(self, view):
+		doc = view.Document
+		page = self.getViewPage(view)
+		for balloon in page.Views:
+			if balloon.TypeId == 'TechDraw::DrawViewBalloon' and "Assembly_handbook_PartName" in balloon.PropertiesList and balloon.SourceView == view:
+				obj = doc.getObject(balloon.Assembly_handbook_PartName)
+				balloonColor = (0.0, 0.0, 0.0)
+				if obj is None or not obj in view.XSource:
+					balloonColor = (1.0, 0.0, 0.0)
+				balloon.ViewObject.Color = balloonColor
+		
+				
 	def toggleEditViewSourceParts(self, view):
 		workbench = Gui.getWorkbench("AssemblyHandbookWorkbench") #: :type workbench: AssemblyHandbookWorkbench
 		
@@ -272,8 +284,16 @@ class TechDrawExtensions:
 		return None
 	
 	def forceRedrawPage(self, page, callback = None):
+		for view in page.Views:
+			if view.TypeId == 'TechDraw::DrawViewPart' and 'Assembly_handbook_PreviousStepView' in view.PropertiesList:
+				self.refreshView(view) 
+		
 		if page.KeepUpdated:
 			for view in page.Views:
+				if view.TypeId != 'TechDraw::DrawViewPart':
+					view.recompute()
+			for view in page.Views:
+				if view.TypeId == 'TechDraw::DrawViewPart':
 					view.recompute() 
 			if callback is not None:
 				callback()