source: Dev/trunk/src/client/dojox/gfx/registry.js

define(["dojo/has","./shape"], function(has, shapeLib){

        has.add("gfxRegistry", 1);

        var registry = {};

        // a set of ids (keys=type)
        var _ids = {};
        // a simple set impl to map shape<->id
        var hash = {};

        registry.register = shapeLib.register = function(/*dojox/gfx/shape.Shape*/s){
                // summary:
                //              Register the specified shape into the graphics registry.
                // s: dojox/gfx/shape.Shape
                //              The shape to register.
                // returns: Number
                //              The unique id associated with this shape.

                // the id pattern : type+number (ex: Rect0,Rect1,etc)
                var t = s.declaredClass.split('.').pop();
                var i = t in _ids ? ++_ids[t] : ((_ids[t] = 0));
                var uid = t+i;
                hash[uid] = s;
                return uid;
        };

        registry.byId = shapeLib.byId = function(/*String*/id){
                // summary:
                //              Returns the shape that matches the specified id.
                // id: String
                //              The unique identifier for this Shape.
                // returns: dojox/gfx/shape.Shape
                return hash[id]; //dojox/gfx/shape.Shape
        };

        registry.dispose = shapeLib.dispose = function(/*dojox/gfx/shape.Shape*/s, /*Boolean?*/recurse){
                // summary:
                //              Removes the specified shape from the registry.
                // s: dojox/gfx/shape.Shape
                //              The shape to unregister.
                if(recurse && s.children){
                        for(var i=0; i< s.children.length; ++i){
                                registry.dispose(s.children[i], true);
                        }
                }
                var uid = s.getUID();
                hash[uid] = null;
                delete hash[uid];
        };

        return registry;
});