void disable_all ();
void remove_group (ARDOUR::RouteGroup *);
- void render (cairo_t *);
+ void render (cairo_t *, cairo_rectangle_t*);
void on_size_request (Gtk::Requisition *);
bool on_button_press_event (GdkEventButton *);
bool on_motion_notify_event (GdkEventMotion *);