added code to annotate all objects in a TechDraw view

ahb_cmd_view_annotate.py

@@ -2,6 +2,8 @@ import FreeCADGui as Gui
 import FreeCAD as App
 
 class AHB_View_Annotate:
+    updating_balloon = False
+    
     def GetResources(self):
         return {"MenuText": "View/Annotate",
                 "ToolTip": "Annotates a TechDraw view with object names",
@@ -12,31 +14,99 @@ class AHB_View_Annotate:
         return True
 
     def Activated(self):
+        workbench = Gui.getWorkbench("AssemblyHandbookWorkbench")
+        workbench.docObserver.onObjectTypeChanged('view_annotate_balloon_changed', 'TechDraw::DrawViewBalloon', lambda obj, prop: self.onBalloonChanged(obj, prop))
+        workbench.docObserver.onObjectTypeSelected('view_annotate_balloon_selected', 'TechDraw::DrawViewBalloon', lambda operation, obj, sub, point: self.onBalloonSelected(operation, obj, sub, point))
+        
         doc = App.activeDocument()
-        page = doc.getObject('Page')
-        view = page.Views[0]
 
         if len(Gui.Selection.getSelection()) != 1:
-            raise Exception("Veuillez sélectionner exactement un objet")
-
-        object = Gui.Selection.getSelection()[0]
+            raise Exception("Please select exactly one TechDraw view")
 
+        view = Gui.Selection.getSelection()[0]
+        if view.TypeId != 'TechDraw::DrawViewPart':
+            raise Exception("Selected object is not a TechDraw view")
+        
+        page = None
+        for obj in doc.Objects:
+            if obj.TypeId == 'TechDraw::DrawPage':
+                if view in obj.Views:
+                    page = obj
+        if page is None:
+            raise Exception("Can't find page in which the selected view is located")
+        
+        # Remove balloons referencing missing objects
+        for balloon in page.Views:
+            if balloon.TypeId == 'TechDraw::DrawViewBalloon' and "AssemblyHandbook_PartName" in balloon.PropertiesList:
+                partLink = doc.getObject(balloon.AssemblyHandbook_PartName)
+                if partLink is None or partLink not in view.XSource:
+                    print(balloon.Name + " references missing object " + balloon.AssemblyHandbook_PartName + ", removing balloon")
+                    doc.removeObject(balloon.Name)
+        
+        for partLink in view.XSource:
+            balloon = None
+            
+            # Search an existing balloon to update
+            for obj in page.Views:
+                if obj.TypeId == 'TechDraw::DrawViewBalloon' and "AssemblyHandbook_PartName" in obj.PropertiesList and obj.AssemblyHandbook_PartName == partLink.Name:
+                    balloon = obj
+            
+            # Create a new balloon if needed
+            if balloon is None:
+                balloon = App.ActiveDocument.addObject("TechDraw::DrawViewBalloon", "Balloon")
+                balloon.SourceView = view
+                
+                balloon.addProperty("App::PropertyString", "AssemblyHandbook_PartName", "AssemblyHandbook")
+                balloon.AssemblyHandbook_PartName = partLink.Name
+                
+                page.addView(balloon)
+                
+                self.updateBalloon(balloon)
+                
+                balloon.X = int(balloon.OriginX) + 100
+                balloon.Y = int(balloon.OriginY) + 100
+            else:
+                self.updateBalloon(balloon)
+    
+    def onBalloonChanged(self, obj, prop):
+        # Avoid reentry
+        if self.updating_balloon:
+            return
+        
+        #print('Balloon changed: ' + obj.Name + '.' + prop)
+        if prop == 'Y' and "AssemblyHandbook_PartName" in obj.PropertiesList:
+            self.updating_balloon = True
+            self.updateBalloon(obj)
+            self.updating_balloon = False
+            
+    def onBalloonSelected(self, operation, obj, sub, point):
+        #print(operation, obj.Name, sub, point)
+        if "AssemblyHandbook_PartName" in obj.PropertiesList:
+            if operation == 'added':
+                print("Selected balloon of " + obj.AssemblyHandbook_PartName)
+            elif operation == 'removed':
+                print("Deselected balloon of " + obj.AssemblyHandbook_PartName)
+    
+    def updateBalloon(self, balloon):
+        doc = App.activeDocument()
+        view = balloon.SourceView
+        partLink = doc.getObject(balloon.AssemblyHandbook_PartName)
+        
         # Get object center in view space
-        objectCenterWorld = object.LinkPlacement.Matrix.multiply(object.LinkedObject.Shape.CenterOfGravity)
+        objectCenterWorld = partLink.LinkPlacement.Matrix.multiply(partLink.LinkedObject.Shape.CenterOfGravity)
         vertId = view.makeCosmeticVertex3d(objectCenterWorld)
         vert = view.getCosmeticVertex(vertId)
         objectCenterView = vert.Point
         view.removeCosmeticVertex(vertId)
-
-        # Create Balloon
-        balloon = App.ActiveDocument.addObject("TechDraw::DrawViewBalloon", "Balloon")
-        balloon.SourceView = view
+        
         balloon.OriginX = objectCenterView.x
         balloon.OriginY = objectCenterView.y
-        balloon.Text = "1"
-        balloon.Y = objectCenterView.x + 20
-        balloon.X = objectCenterView.y + 20
-        page.addView(balloon)
+        
+        balloon.Text = partLink.LinkedObject.Document.Name
+        balloon.ViewObject.Font = 'DejaVu Sans'
+        balloon.ViewObject.Fontsize = 4
+        balloon.BubbleShape = 'Inspection'
+        balloon.EndTypeScale = 4
 
 from ahb_command import AHB_CommandWrapper
 AHB_CommandWrapper.addGuiCommand('AHB_view_annotate', AHB_View_Annotate())

ahb_document_observer.py

@@ -0,0 +1,58 @@
+import FreeCAD as App
+import FreeCADGui as Gui
+
+class DocObserver:
+    changed_object_by_type = {}
+    selection_by_type = {}
+    
+    was_selected = []
+    
+    def __init__(self):
+        Gui.Selection.addObserver(self)
+    
+    def slotChangedObject(self, obj, prop):
+        #print("object changed: " + str(obj).replace('<', '').replace(' object>', '') + " " + obj.Name + " : " + str(prop))
+        callbacks = self.changed_object_by_type.get(obj.TypeId, None)
+        if callbacks is not None:
+            for callback in callbacks.values():
+                callback(obj, prop)
+        
+    def addSelection(self, doc, obj_name, sub, pnt):
+        self.was_selected = Gui.Selection.getSelection()
+        obj = App.getDocument(doc).getObject(obj_name)
+        callbacks = self.selection_by_type.get(obj.TypeId, None)
+        if callbacks is not None:
+            for callback in callbacks.values():
+                callback('added', obj, sub, pnt)
+                
+    def removeSelection(self, doc, obj_name, sub):
+        self.was_selected = Gui.Selection.getSelection()
+        obj = App.getDocument(doc).getObject(obj_name)
+        callbacks = self.selection_by_type.get(obj.TypeId, None)
+        if callbacks is not None:
+            for callback in callbacks.values():
+                callback('removed', obj, sub, None)
+    
+    def clearSelection(self, p):
+        was_selected = self.was_selected
+        self.was_selected = []
+        
+        for obj in was_selected:
+            callbacks = self.selection_by_type.get(obj.TypeId, None)
+            if callbacks is not None:
+                for callback in callbacks.values():
+                    callback('removed', obj, None, None)
+
+    def onObjectTypeChanged(self, callback_id: str, type_id: str, callback):
+        callbacks = self.changed_object_by_type.get(type_id, None)
+        if callbacks is None:
+            callbacks = {}
+            self.changed_object_by_type[type_id] = callbacks
+        callbacks[callback_id] = callback
+        
+    def onObjectTypeSelected(self, callback_id: str, type_id: str, callback):
+        callbacks = self.selection_by_type.get(type_id, None)
+        if callbacks is None:
+            callbacks = {}
+            self.selection_by_type[type_id] = callbacks
+        callbacks[callback_id] = callback