+ bool set_position(nframes_t pos, void* src, double* delta = 0);
+ void fake_set_opaque (bool yn);
+
+ virtual void show_region_editor () = 0;
+ virtual void hide_region_editor();
+
+ virtual void region_changed (ARDOUR::Change);
+
+ virtual GhostRegion* add_ghost (AutomationTimeAxisView&) = 0;
+ void remove_ghost (GhostRegion*);
+
+ uint32_t get_fill_color ();