Arch: Hide/show windows together with their parents - fixes #1733

src/Mod/Arch/ArchCommands.py

@@ -140,8 +140,6 @@ def removeComponents(objectsList,host=None):
             for o in objectsList:
                 if not o in s:
                     s.append(o)
-                    if FreeCAD.GuiUp:
-                        o.ViewObject.hide()
                     if Draft.getType(o) == "Window":
                         # fix for sketch-based windows
                         if o.Base:
@@ -159,6 +157,9 @@ def removeComponents(objectsList,host=None):
                                         o.Base.delExternal(i)
                                         FreeCAD.Console.PrintMessage(translate("Arch","removing sketch support to avoid cross-referencing"))
                                         break
+                    else:
+                        if FreeCAD.GuiUp:
+                            o.ViewObject.hide()
             host.Subtractions = s
     else:
         for o in objectsList:

src/Mod/Arch/ArchComponent.py

@@ -639,6 +639,10 @@ class ViewProviderComponent:
         return
 
     def onChanged(self,vobj,prop):
+        if prop == "Visibility":
+            for obj in vobj.Object.Additions+vobj.Object.Subtractions:
+                if Draft.getType(obj) == "Window":
+                    obj.ViewObject.Visibility = vobj.Visibility
         return
 
     def attach(self,vobj):

src/Mod/Arch/ArchWindow.py

@@ -392,7 +392,7 @@ class _CommandWindow:
         self.FORMAT = DraftGui.makeFormatSpec(self.DECIMALS,'Length')
         
         # auto mode
-        if sel:
+        if sel and FreeCADGui.Selection.getSelectionEx():
             obj = sel[0]
             if Draft.getType(obj) in AllowedHosts:
                 # make sure only one face is selected