YNU_JEUS/admin_home/dojo/dojox/drawing/manager/Canvas.js

/*
	Copyright (c) 2004-2009, The Dojo Foundation All Rights Reserved.
	Available via Academic Free License >= 2.1 OR the modified BSD license.
	see: http://dojotoolkit.org/license for details
*/


if(!dojo._hasResource["dojox.drawing.manager.Canvas"]){dojo._hasResource["dojox.drawing.manager.Canvas"]=true;dojo.provide("dojox.drawing.manager.Canvas");(function(){dojox.drawing.manager.Canvas=dojox.drawing.util.oo.declare(function(_1){dojo.mixin(this,_1);var _2=dojo.contentBox(this.srcRefNode);this.height=this.parentHeight=_2.h;this.width=this.parentWidth=_2.w;this.domNode=dojo.create("div",{id:"canvasNode"},this.srcRefNode);dojo.style(this.domNode,{width:this.width,height:"auto"});dojo.setSelectable(this.domNode,false);this.id=this.id||this.util.uid("surface");this.gfxSurface=dojox.gfx.createSurface(this.domNode,this.width,this.height);this.gfxSurface.whenLoaded(this,function(){setTimeout(dojo.hitch(this,function(){this.surfaceReady=true;if(dojo.isIE){}else{if(dojox.gfx.renderer=="silverlight"){this.id=this.domNode.firstChild.id;}else{}}this.underlay=this.gfxSurface.createGroup();this.surface=this.gfxSurface.createGroup();this.overlay=this.gfxSurface.createGroup();this.surface.setTransform({dx:0,dy:0,xx:1,yy:1});this.gfxSurface.getDimensions=dojo.hitch(this.gfxSurface,"getDimensions");if(_1.callback){_1.callback(this.domNode);}}),500);});this._mouseHandle=this.mouse.register(this);},{zoom:1,useScrollbars:true,baseClass:"drawingCanvas",resize:function(_3,_4){this.parentWidth=_3;this.parentHeight=_4;this.setDimensions(_3,_4);},setDimensions:function(_5,_6,_7,_8){var sw=this.getScrollWidth();this.width=Math.max(_5,this.parentWidth);this.height=Math.max(_6,this.parentHeight);if(this.height>this.parentHeight){this.width-=sw;}if(this.width>this.parentWidth){this.height-=sw;}this.gfxSurface.setDimensions(this.width,this.height);this.domNode.parentNode.scrollTop=_8||0;this.domNode.parentNode.scrollLeft=_7||0;if(this.useScrollbars){dojo.style(this.domNode.parentNode,{overflowY:this.height>this.parentHeight?"scroll":"hidden",overflowX:this.width>this.parentWidth?"scroll":"hidden"});}else{dojo.style(this.domNode.parentNode,{overflowY:"hidden",overflowX:"hidden"});}},setZoom:function(_9){this.zoom=_9;this.surface.setTransform({xx:_9,yy:_9});this.setDimensions(this.width*_9,this.height*_9);},onScroll:function(){},getScrollOffset:function(){return {top:this.domNode.parentNode.scrollTop,left:this.domNode.parentNode.scrollLeft};},getScrollWidth:function(){var p=dojo.create("div");p.innerHTML="<div style=\"width:50px;height:50px;overflow:hidden;position:absolute;top:0px;left:-1000px;\"><div style=\"height:100px;\"></div>";var _a=p.firstChild;dojo.body().appendChild(_a);var _b=dojo.contentBox(_a).h;dojo.style(_a,"overflow","scroll");var _c=_b-dojo.contentBox(_a).h;dojo.destroy(_a);this.getScrollWidth=function(){return _c;};return _c;}});})();}