package gwt.g2d.client.mouse; import gwt.g2d.shared.math.Vector2; public interface SurfaceMouseDragHandler { public void onDragStart(Vector2 start, Long startId); public void onDragChange(Vector2 start, Vector2 stop, Long startId, Long stopId); public void onDragStop(Vector2 start, Vector2 stop, Long startId, Long stopId); }