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root / trunk / web / dojo / dojox / drawing / annotations / Arrow.js

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1 9 andrej.cim
/*
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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.annotations.Arrow"]){
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dojo._hasResource["dojox.drawing.annotations.Arrow"]=true;
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dojo.provide("dojox.drawing.annotations.Arrow");
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dojo.require("dojox.drawing.stencil.Path");
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dojox.drawing.annotations.Arrow=dojox.drawing.util.oo.declare(dojox.drawing.stencil.Path,function(_1){
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this.stencil.connectMult([[this.stencil,"select",this,"select"],[this.stencil,"deselect",this,"deselect"],[this.stencil,"render",this,"render"],[this.stencil,"onDelete",this,"destroy"]]);
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this.connect("onBeforeRender",this,function(){
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var o=this.stencil.points[this.idx1];
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var c=this.stencil.points[this.idx2];
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if(this.stencil.getRadius()>=this.minimumSize){
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this.points=this.arrowHead(c.x,c.y,o.x,o.y,this.style);
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}else{
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this.points=[];
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}
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});
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},{idx1:0,idx2:1,subShape:true,minimumSize:30,arrowHead:function(x1,y1,x2,y2,_2){
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var _3={start:{x:x1,y:y1},x:x2,y:y2};
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var _4=this.util.angle(_3);
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var _5=this.util.length(_3);
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var al=_2.arrows.length;
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var aw=_2.arrows.width/2;
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if(_5<al){
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al=_5/2;
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}
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var p1=this.util.pointOnCircle(x2,y2,-al,_4-aw);
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var p2=this.util.pointOnCircle(x2,y2,-al,_4+aw);
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return [{x:x2,y:y2},p1,p2];
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}});
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}