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+//>>built
+// wrapped by build app
+define("dojox/drawing/util/oo", ["dijit","dojo","dojox"], function(dijit,dojo,dojox){
+dojo.provide("dojox.drawing.util.oo");
+
+// TODO:
+// allow a declare without a mixin
+
+dojox.drawing.util.oo = {
+ // summary:
+ // Inheritance utilities used in DojoX Drawing
+ // description:
+ // Inheritance utilities used in DojoX Drawing.
+ // There were designed in a effort to make Drawing as
+ // fast as possible - especially in a case where thousands
+ // of objects are being loaded. Drawing declare performs
+ // about 3 times faster than Dojo declare and 2 times
+ // faster than Dojox declare. This is not to say Drawing
+ // declare is wthout limitations. It doesn't have the same
+ // syntatic sugar and extensibility of the other two. You
+ // can't inhert methods. It won't work with Dijit. But it
+ // is simple and effective.
+ //
+ declare: function(){
+ // summary:
+ // Creates a constructor Function from a
+ // Function, and collection of methods, and
+ // more Functions that are extended.
+ // description:
+ // Similar in look and feel to Dojo declare as
+ // far as order and number of arguments, although
+ // constructed a little closer to prototypical
+ // inheritance. All arguments passed into the
+ // constructor are passed into all sub constructors.
+ // arguments:
+ // Function, [Object|Function....]
+ // The first argument is always the base
+ // constructor. The last argument is always
+ // an object of methods (or empty object) to
+ // be mixed in (in the future would like to
+ // make that object optional). Remaining
+ // arguments are other constructors mixed in
+ // using extend() (See below).
+ // example:
+ // | MyFunction = dojox.drawing.util.oo.declare(
+ // | MyOtherFunction,
+ // | YetAnotherFunction,
+ // | function(options){
+ // | // This is my constructor. It will fire last.
+ // | // The other constructors will fire before this.
+ // | },
+ // | {
+ // | customType:"equation", // mixed in property
+ // | doThing: function(){ // mixed in method
+ // |
+ // | }
+ // | }
+ // | );
+ // |
+ // | var f = new MyFunction();
+ //
+ var f, o, ext=0, a = arguments;
+
+ if(a.length<2){ console.error("drawing.util.oo.declare; not enough arguments")}
+ if(a.length==2){
+ f = a[0]; o = a[1];
+ }else{
+ a = Array.prototype.slice.call(arguments);
+ o = a.pop();
+ f = a.pop();
+ ext = 1;
+ }
+ for(var n in o){
+ f.prototype[n] = o[n];
+ }
+ if(ext){
+ a.unshift(f);
+ f = this.extend.apply(this, a);
+ }
+ return f; // Function
+ },
+ extend: function(){
+ // summary:
+ // Extends constructors to inherit from other
+ // constructors .
+ // description:
+ // Typically not used by itself - it's used as
+ // part of declare(). Could be used by itself
+ // however, to mix together two or more
+ // constructors.
+ // arguments:
+ // Function, [ Function...]
+ // Any number of arguments, all must be
+ // function constructors. The first is
+ // considered the base object and its
+ // constructor will fire first.
+ // example:
+ // | var A = function(){};
+ // | var B = function(){};
+ // | var C = function(){};
+ // | var D = dojox.drawing.util.oo.extend(A, B, C);
+ // | var e = new D();
+ //
+ var a = arguments, sub = a[0];
+ if(a.length<2){ console.error("drawing.util.oo.extend; not enough arguments")}
+ var f = function (){
+ for(var i=1;i<a.length;i++){
+ a[i].prototype.constructor.apply(this, arguments);
+ }
+ // sub should fire last
+ sub.prototype.constructor.apply(this, arguments);
+
+ }
+ for(var i=1;i<a.length;i++){
+ for(var n in a[i].prototype){
+ f.prototype[n] = a[i].prototype[n];
+ }
+ }
+
+ for(n in sub.prototype){
+ f.prototype[n] = sub.prototype[n];
+ }
+ return f; // Function
+ }
+};
+});