Add handy shortcut: use 'Ctrl - Right Click' to go to implementation directly.

src/source.cc

@@ -2225,6 +2225,14 @@ bool Source::View::on_button_press_event(GdkEventButton *event) {
     return true;
   }
 
+  if((event->type == GDK_BUTTON_PRESS) && (event->button == 1)){
+    if(event->state & GDK_CONTROL_MASK) {
+      hide_tooltips();
+      Menu::get().actions["source_goto_implementation"]->activate();
+      return true;
+    }
+  }
+
   if((event->type == GDK_BUTTON_PRESS) && (event->button == 3)){
     hide_tooltips();
     if(!get_buffer()->get_has_selection()){