using namespace Upp;

class MyLabel : public Label
{
public:
	MyLabel(String& s){ SetLabel(s); }
};


struct ButtonApp : TopWindow {

	ButtonApp()	: count(0)
	{		
		Sizeable().Zoomable();
		Click();
	}

	void Click()
	{
		int x, y;
		Ctrl * p;
		x=count%max_row_button*(button_width+5)+2;
		y=count/max_row_button*(button_height+5)+2;
		
		if( count & 1)
			p=&NewChild<MyLabel>(String().Cat()<<"["<<count<<"] A Label");
		else
		{
			p=&NewChild<Button>()
				.SetLabel(String().Cat()<<"["<<count<<"] Click Me");
			*(Button*)p<<=THISBACK(Click);
		}
				
		p->LeftPos(x,button_width).TopPos(y,button_height);

		++count;
	}

	typedef ButtonApp CLASSNAME;

private:
	const static int button_width=180;
	const static int button_height=40;
	const static int max_row_button=5;

	int    count;
};

GUI_APP_MAIN
{
	ButtonApp().Run();
}