text: dojo.provide("showcase.shape");dojo.declare("ShapeWidget",null,{_color:"",constructor:function(a){this._color=a},getColor:function(){return this._color}});dojo.declare("CircleWidget",ShapeWidget,{_radius:0,constructor:function(b,a){this._radius=a},getArea:function(){return Math.PI*this._radius*this._radius},generateContent:function(){return"Shape is a circle with "+this.getColor()+" color,"+this.getArea()+" area."}});