void region_resized(ARDOUR::Change what_changed);
bool canvas_event(GdkEvent* ev);
void add_automation_event (GdkEvent* event, nframes_t when, double y);
void region_resized(ARDOUR::Change what_changed);
bool canvas_event(GdkEvent* ev);
void add_automation_event (GdkEvent* event, nframes_t when, double y);