Minor update to SCCD model

wrappers/classes/modelverse.xml

@@ -1401,30 +1401,33 @@
                     </state>
 
                     <state id="modelling" initial="recognized_operation">
-                        <onentry>
-                            <script>
-                                # TODO enter a specific model
-                                pass
-                            </script>
-                        </onentry>
-
                         <onexit>
-                            <script>
-                                # TODO exit the specific model
-                                pass
-                            </script>
+                            <raise event="request">
+                                <parameter expr="'exit'"/>
+                            </raise>
                         </onexit>
 
                         <state id="recognized_operation" initial="manual">
                             <state id="manual">
                                 <onentry>
                                     self.context = None
+                                    self.current_model = self.actions[None][0].parameters[0]
                                 </onentry>
 
                                 <transition cond="self.expect_action(self.context, 'exit')" target="../../../megamodelling"/>
+
+                                <transition cond="self.actions[self.context] and self.actions[0].parameters != self.current_model" target="../../../megamodelling">
+                                    <script>
+                                        print("Sudden switch between two models: perform context switch!")
+                                    </script>
+                                </transition>
                             </state>
 
                             <state id="scripted">
+                                <onentry>
+                                    self.current_model = None
+                                </onentry>
+
                                 <transition cond="self.expect_action(self.context, 'exit')" target="../../../../operations/history"/>
                             </state>
 
@@ -1537,7 +1540,7 @@
                             </transition>
                         </state>
 
-                        <transition cond="self.context is not None and self.unexpected_action(self.context)" target=".">
+                        <transition cond="self.context is not None and self.actions[self.context]" target=".">
                             <script>
                                 print("Got unexpected operation: " + str(self.actions[self.context][0]))
                             </script>
@@ -1548,7 +1551,7 @@
                             </raise>
                         </transition>
 
-                        <transition cond="self.context is None and self.unexpected_action(self.context)" target="../megamodelling">
+                        <transition cond="self.context is None and self.action[None]" target="../megamodelling">
                             <script>
                                 print("Got megamodelling operation in model: transferring")
                             </script>