root / trunk / web / dojo / dojox / image / Magnifier.js
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1 | 9 | andrej.cim | /*
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2 | Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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3 | Available via Academic Free License >= 2.1 OR the modified BSD license.
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4 | see: http://dojotoolkit.org/license for details
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5 | */
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6 | |||
7 | |||
8 | if(!dojo._hasResource["dojox.image.Magnifier"]){ |
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9 | dojo._hasResource["dojox.image.Magnifier"]=true; |
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10 | dojo.provide("dojox.image.Magnifier");
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11 | dojo.require("dojox.gfx");
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12 | dojo.require("dojox.image.MagnifierLite");
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13 | dojo.declare("dojox.image.Magnifier",dojox.image.MagnifierLite,{_createGlass:function(){ |
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14 | this.glassNode=dojo.create("div",{style:{height:this.glassSize+"px",width:this.glassSize+"px"},"className":"glassNode"},dojo.body()); |
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15 | this.surfaceNode=dojo.create("div",null,this.glassNode); |
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16 | this.surface=dojox.gfx.createSurface(this.surfaceNode,this.glassSize,this.glassSize); |
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17 | this.img=this.surface.createImage({src:this.domNode.src,width:this._zoomSize.w,height:this._zoomSize.h}); |
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18 | },_placeGlass:function(e){ |
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19 | var x=e.pageX-2,y=e.pageY-2,_1=this.offset.x+this.offset.w+2,_2=this.offset.y+this.offset.h+2; |
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20 | if(x<this.offset.x||y<this.offset.y||x>_1||y>_2){ |
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21 | this._hideGlass();
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22 | }else{
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23 | this.inherited(arguments); |
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24 | } |
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25 | },_setImage:function(e){ |
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26 | var _3=(e.pageX-this.offset.l)/this.offset.w,_4=(e.pageY-this.offset.t)/this.offset.h,x=(this._zoomSize.w*_3*-1)+(this.glassSize*_3),y=(this._zoomSize.h*_4*-1)+(this.glassSize*_4); |
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27 | this.img.setShape({x:x,y:y}); |
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28 | }}); |
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29 | } |