com.smartgwt.client.widgets.drawing.events

Interface HasDrawStartHandlers

All Superinterfaces:

com.google.gwt.event.shared.HasHandlers

All Known Implementing Classes:

DrawBlockConnector, DrawCurve, DrawDiamond, DrawGroup, DrawImage, DrawItem, DrawLabel, DrawLine, DrawLinePath, DrawOval, DrawPane, DrawPath, DrawPolygon, DrawRect, DrawSector, DrawShape, DrawTriangle, FacetChart, Gauge

public interface HasDrawStartHandlers
extends com.google.gwt.event.shared.HasHandlers

Method Summary

Modifier and Type	Method and Description
com.google.gwt.event.shared.HandlerRegistration	addDrawStartHandler(DrawStartHandler handler) Called when we start drawing to the underlying HTML5 <canvas> element of a DrawPane, right after the element is cleared.

Methods inherited from interface com.google.gwt.event.shared.HasHandlers

fireEvent

Method Detail

addDrawStartHandler

com.google.gwt.event.shared.HandlerRegistration addDrawStartHandler(DrawStartHandler handler)

Called when we start drawing to the underlying HTML5 <canvas> element of a DrawPane, right after the element is cleared. Only called if the DrawingType is DrawingType.BITMAP.

Parameters:

handler - the drawStart handler

Returns:

HandlerRegistration used to remove this handler