class widget
{
public:
	Widget(Widget *parent_)
	{
		parent = parent_;
	}

	static Widget *GetRoot()
	{
		static root = new Widget();
		return root;
	}

	virtual ~Widget();
	
	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;
	Widget *widget;
	Widget();

};