No longer open attribute editor for non-SCD models

classes/canvas/canvas_element.xml

@@ -151,7 +151,7 @@
                 <parameter name="ID"/>
             </transition>
 
-            <transition event="middle-click" cond="id(self) == ID and control_pressed" target=".">
+            <transition event="middle-click" cond="id(self) == ID and control_pressed and current_metamodel == 'formalisms/SimpleClassDiagrams'" target=".">
                 <parameter name="ID"/>
                 <raise event="modify_defined_attrs" scope="narrow" target="'parent/parent'">
                     <parameter expr="self.as_element"/>

frontend.py

@@ -1,7 +1,7 @@
 """
 Generated by Statechart compiler by Glenn De Jonghe, Joeri Exelmans, Simon Van Mierlo, and Yentl Van Tendeloo (for the inspiration)
 
-Date:   Tue May 29 09:07:36 2018
+Date:   Tue May 29 09:38:53 2018
 
 Model author: Yentl Van Tendeloo
 Model name:   Modelverse Visual Editor - Tkinter Version 
@@ -14552,6 +14552,7 @@ class CanvasElement(RuntimeClassBase, SCCDWidget):
     
     def _main_0_exec(self, parameters):
         element = parameters[0]
+        print("MM: " + str(current_metamodel))
         elem_x = self.coordinates[0] + element["x"]
         elem_y = self.coordinates[1] + element["y"]
         if element["type"] == "Rectangle":
@@ -14587,7 +14588,7 @@ class CanvasElement(RuntimeClassBase, SCCDWidget):
     
     def _main_3_guard(self, parameters):
         ID = parameters[0]
-        return id(self) == ID and control_pressed
+        return id(self) == ID and control_pressed and current_metamodel == 'formalisms/SimpleClassDiagrams'
     
     def _main_4_exec(self, parameters):
         ID = parameters[0]