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root / trunk / web / dojo / dojox / drawing / manager / Canvas.js @ 12

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/*
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        Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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        Available via Academic Free License >= 2.1 OR the modified BSD license.
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        see: http://dojotoolkit.org/license for details
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*/
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if(!dojo._hasResource["dojox.drawing.manager.Canvas"]){
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dojo._hasResource["dojox.drawing.manager.Canvas"]=true;
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dojo.provide("dojox.drawing.manager.Canvas");
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(function(){
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dojox.drawing.manager.Canvas=dojox.drawing.util.oo.declare(function(_1){
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dojo.mixin(this,_1);
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var _2=dojo.contentBox(this.srcRefNode);
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this.height=this.parentHeight=_2.h;
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this.width=this.parentWidth=_2.w;
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this.domNode=dojo.create("div",{id:"canvasNode"},this.srcRefNode);
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dojo.style(this.domNode,{width:this.width,height:"auto"});
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dojo.setSelectable(this.domNode,false);
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this.id=this.id||this.util.uid("surface");
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this.gfxSurface=dojox.gfx.createSurface(this.domNode,this.width,this.height);
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this.gfxSurface.whenLoaded(this,function(){
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setTimeout(dojo.hitch(this,function(){
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this.surfaceReady=true;
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if(dojo.isIE){
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}else{
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if(dojox.gfx.renderer=="silverlight"){
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this.id=this.domNode.firstChild.id;
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}else{
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}
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}
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this.underlay=this.gfxSurface.createGroup();
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this.surface=this.gfxSurface.createGroup();
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this.overlay=this.gfxSurface.createGroup();
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this.surface.setTransform({dx:0,dy:0,xx:1,yy:1});
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this.gfxSurface.getDimensions=dojo.hitch(this.gfxSurface,"getDimensions");
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if(_1.callback){
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_1.callback(this.domNode);
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}
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}),500);
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});
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this._mouseHandle=this.mouse.register(this);
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},{zoom:1,useScrollbars:true,baseClass:"drawingCanvas",resize:function(_3,_4){
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this.parentWidth=_3;
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this.parentHeight=_4;
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this.setDimensions(_3,_4);
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},setDimensions:function(_5,_6,_7,_8){
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var sw=this.getScrollWidth();
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this.width=Math.max(_5,this.parentWidth);
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this.height=Math.max(_6,this.parentHeight);
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if(this.height>this.parentHeight){
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this.width-=sw;
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}
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if(this.width>this.parentWidth){
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this.height-=sw;
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}
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this.mouse.resize(this.width,this.height);
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this.gfxSurface.setDimensions(this.width,this.height);
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this.domNode.parentNode.scrollTop=_8||0;
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this.domNode.parentNode.scrollLeft=_7||0;
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if(this.useScrollbars){
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dojo.style(this.domNode.parentNode,{overflowY:this.height>this.parentHeight?"scroll":"hidden",overflowX:this.width>this.parentWidth?"scroll":"hidden"});
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}else{
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dojo.style(this.domNode.parentNode,{overflowY:"hidden",overflowX:"hidden"});
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}
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},setZoom:function(_9){
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this.zoom=_9;
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this.surface.setTransform({xx:_9,yy:_9});
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this.setDimensions(this.width*_9,this.height*_9);
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},onScroll:function(){
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},getScrollOffset:function(){
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return {top:this.domNode.parentNode.scrollTop,left:this.domNode.parentNode.scrollLeft};
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},getScrollWidth:function(){
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var p=dojo.create("div");
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p.innerHTML="<div style=\"width:50px;height:50px;overflow:hidden;position:absolute;top:0;left:-1000px;\"><div style=\"height:100px;\"></div>";
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var _a=p.firstChild;
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dojo.body().appendChild(_a);
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var _b=dojo.contentBox(_a).h;
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dojo.style(_a,"overflow","scroll");
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var _c=_b-dojo.contentBox(_a).h;
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dojo.destroy(_a);
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this.getScrollWidth=function(){
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return _c;
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};
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return _c;
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}});
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})();
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}