public interface HasDrawStartHandlers
extends com.google.gwt.event.shared.HasHandlers
| Modifier and Type | Method and Description | 
|---|---|
| com.google.gwt.event.shared.HandlerRegistration | addDrawStartHandler(DrawStartHandler handler)Called when we start drawing for this DrawItem to the  drawPane's underlying HTML5 <canvas> element. | 
com.google.gwt.event.shared.HandlerRegistration addDrawStartHandler(DrawStartHandler handler)
drawPane's underlying HTML5 <canvas> element.  Only called if the DrawingType
 is  DrawingType.BITMAP.handler - the drawStart handlerHandlerRegistration used to remove this handler