WIP: bugfixed tech controller, more refactoring

Resolved the dependencies between MainWindow, TechController
and MacroController somewhat more.

* The macro controller now listens to the tech controller
  for the active technology
* The tech controller has more responsibility now
* Some functionality has been taken out of the MainWindow
  and put into the controller's implementation

src/laybasic/layAbstractMenu.cc

@@ -1123,14 +1123,17 @@ AbstractMenu::find_item (const std::string &path)
         return std::make_pair ((AbstractMenuItem *) 0, m_root.children.end ());
       }
 
-    } else if (extr.test ("begin")) {
-      return std::make_pair (parent, parent->children.begin ());
-    } else if (extr.test ("end")) {
-      return std::make_pair (parent, parent->children.end ());
     } else {
 
       std::string n;
       extr.read (n, ".+");
+
+      if (n == "begin") {
+        return std::make_pair (parent, parent->children.begin ());
+      } else if (n == "end") {
+        return std::make_pair (parent, parent->children.end ());
+      }
+
       std::string name (parent->name ());
       if (! name.empty ()) {
         name += ".";

src/laybasic/layPlugin.cc

@@ -197,7 +197,7 @@ PluginDeclaration::init_menu ()
     m_mouse_mode_action.qaction ()->setData (QVariant (id ()));
 
     menu.insert_item ("edit_menu.mode_menu.end", name, m_mouse_mode_action);
-    menu.insert_item ("@toolbar.end", name, m_mouse_mode_action);
+    menu.insert_item ("@toolbar.end_modes", name, m_mouse_mode_action);
 
     gtf::action_connect (m_mouse_mode_action.qaction (), SIGNAL (triggered ()), this, SLOT (mode_triggered ()));
 

src/laybasic/layTechnology.cc

@@ -184,6 +184,12 @@ Technologies::end_updates ()
   }
 }
 
+void
+Technologies::end_updates_no_event ()
+{
+  m_in_update = false;
+  m_changed = false;
+}
 
 bool 
 Technologies::has_technology (const std::string &name) const

src/laybasic/layTechnology.h

@@ -149,6 +149,14 @@ public:
    */
   void end_updates ();
 
+  /**
+   *  @brief Ends a bulk operation
+   *  This version does not send an technologies_changed event but just cancels the bulk
+   *  operation. begin_updates/end_updates_no_event is essentially equivalent to blocking
+   *  signals.
+   */
+  void end_updates_no_event ();
+
   /**
    *  @brief Checks, if a technology with the given name exists
    */