source: Dev/branches/rest-dojo-ui/client/dojox/sketch/Anchor.js @ 256

define([
        "dojo/_base/kernel",
        "dojo/_base/lang",
        "../gfx"
], function(dojo){
        dojo.getObject("sketch", true, dojox);

        dojox.sketch.Anchor=function(an, id, isControl){
                var self=this;
                var size=4;     //      .5 * size of anchor.
                var rect=null;

                this.type=function(){ return "Anchor"; };
                this.annotation=an;

                this.id=id;
                this._key="anchor-" + dojox.sketch.Anchor.count++;
                this.shape=null;
                this.isControl=(isControl!=null)?isControl:true;

                this.beginEdit=function(){
                        this.annotation.beginEdit(dojox.sketch.CommandTypes.Modify);
                };
                this.endEdit=function(){
                        this.annotation.endEdit();
                };
                this.zoom=function(pct){
                        if(this.shape){
                                var rs=Math.floor(size/pct);
                                var width=dojox.gfx.renderer=='vml'?1:1/pct
                                this.shape.setShape({ x:an[id].x-rs, y:an[id].y-rs, width:rs*2, height:rs*2 }).setStroke({ color:"black", width:width }); //For IE, maybe we need Math.ceil(1/pct)||1
                        }
                }
                /*this.doChange=function(pt){
                        if(this.isControl){
                                this.shape.applyTransform(pt);
                        } else{
                                an.transform.dx+=pt.dx;
                                an.transform.dy+=pt.dy;
                        }
                };*/
                this.setBinding=function(pt){
                        an[id]={ x: an[id].x+pt.dx, y:an[id].y+pt.dy };
                        an.draw();
                        an.drawBBox();
                };
                this.setUndo=function(){ an.setUndo(); };

                this.enable=function(){
                        if(!an.shape){ return; }
                        an.figure._add(this);
                        rect={ x:an[id].x-size, y:an[id].y-size, width:size*2, height:size*2 };
                        this.shape=an.shape.createRect(rect)
                                //.setStroke({ color:"black", width:1 })
                                .setFill([255,255,255,0.35]);
                        this.shape.getEventSource().setAttribute("id", self._key);
                        this.shape.getEventSource().setAttribute("shape-rendering", "crispEdges");
                        this.zoom(an.figure.zoomFactor);
                };
                this.disable=function(){
                        an.figure._remove(this);
                        if(an.shape){ an.shape.remove(this.shape); }
                        this.shape=null;
                        rect=null;
                };
        };
        dojox.sketch.Anchor.count=0;
        return dojox.sketch.Anchor;
});