+ void set_position_from_event (wxMouseEvent &);
+ void clear_selection ();
+
+ typedef std::vector<boost::shared_ptr<View> > ViewList;
+ typedef std::vector<boost::shared_ptr<ContentView> > ContentViewList;
+
+ boost::shared_ptr<View> event_to_view (wxMouseEvent &);
+ ContentViewList selected_views () const;
+ ContentList selected_content () const;