source: Dev/trunk/src/client/dojox/drawing/tools/Rect.js

define(["dojo/_base/lang", "../util/oo", "../manager/_registry", "../stencil/Rect"],
function(lang, oo, registry, StencilRect){

//dojox.drawing.tools.Rect 
var Rect = oo.declare(
        StencilRect,
        function(){
                // summary:
                //              constructor
        },
        {
                // summary:
                //              Class for a drawable rectangle

                draws:true,
                
                onDrag: function(/*EventObject*/obj){
                        var s = obj.start, e = obj;
                        var     x = s.x < e.x ? s.x : e.x,
                                y = s.y < e.y ? s.y : e.y,
                                w = s.x < e.x ? e.x-s.x : s.x-e.x,
                                h = s.y < e.y ? e.y-s.y : s.y-e.y;
                        
                        if(this.keys.shift){ w = h = Math.max(w,h); }
                        
                        if(this.keys.alt){
                                x-=w; y-=h; w*=2; h*=2;
                                x = Math.max(x, 0);
                                y = Math.max(y, 0);
                        }
                        this.setPoints ([
                                {x:x, y:y},     // TL
                                {x:x+w, y:y},   // TR
                                {x:x+w, y:y+h}, // BR
                                {x:x, y:y+h}    // BL
                        ]);
                        this.render();
                },
                
                onUp: function(/*EventObject*/obj){
                        if(this.created || !this._downOnCanvas){ return; }
                        this._downOnCanvas = false;
                        
                        //Default shape on single click
                        if(!this.shape){
                                var s = obj.start;
                                var e = this.minimumSize*4;
                                this.setPoints([
                                        {x:s.x, y:s.y},
                                        {x:s.x+e, y:s.y},
                                        {x:s.x+e, y:s.y+e},
                                        {x:s.x, y:s.y+e}
                                ]);
                                this.render();
                        }else{
                        
                                // if too small, need to reset
                                var o = this.data;
                                if(o.width<this.minimumSize && o.height < this.minimumSize){
                                        this.remove(this.shape, this.hit);
                                        return;
                                }
                        }
                        this.onRender(this);
                        
                }
        }
);

lang.setObject("dojox.drawing.tools.Rect", Rect);
Rect.setup = {
        name:"dojox.drawing.tools.Rect",
        tooltip:'<span class="drawingTipTitle">Rectangle Tool</span><br/>'
                + '<span class="drawingTipDesc">SHIFT - constrain to square</span>',
        iconClass:"iconRect"
};
registry.register(Rect.setup, "tool");

return Rect;
});