Anonymous

class Widget{public:	Widget();	virtual ~Widget();	virtual void draw();	virtual void update();protected:        Widget *parent;};class compositeWidget : public widget{public:	virtual void draw()	{		//some drawing code		for (int i = 0; i < widgets.size(); i++)			widgets[i]->draw();	}	virtual void update()	{		//some drawing code		for (int i = 0; i < widgets.size(); i++)			widgets[i]->update();	}		virtual void add(Widget *widget)	{		widget->parent = this;		widgets.push_back(widget);	}               private:	std::vector<Widget *> widgets;};