#include <CtrlLib/CtrlLib.h>
#include <Painter/Painter.h>

using namespace Upp;

class BufferPainterCreateCrash: public TopWindow{
	public:
		ImageBuffer ib;
		BufferPainter bpainter;
		Image largeimage;

		BufferPainterCreateCrash(){
			Sizeable().MaximizeBox().MinimizeBox();
			bpainter.PreClipDashed();
			
			ImageBuffer lib(10000,10000);
			BufferPainter bp(lib);
			bp.Clear(LtGray());
			largeimage=lib;
		}
		
		void Paint(Draw &draw){
			SetSurface(draw,Rect(ib.GetSize()),ib,ib.GetSize(),Point(0,0));
		}
		
		void Render(Point p){
			// Use local bpainter below instead of bpainter.Create to avoid crash:
			//BufferPainter bpainter(ib);
			//bpainter.PreClipDashed();
			
			bpainter.Create(ib);
			bpainter.EvenOdd();
			bpainter.Co();
	
			bpainter.Clear(White());
			
			bpainter.Rectangle(0,0,GetSize().cx,GetSize().cy);
			bpainter.Fill(largeimage);
			int fh=StdFont().GetHeight();
			
			bpainter.Text(10,fh,Format("Cursor now at %`, %`",p.x,p.y),StdFont()).Fill(Black());
			bpainter.Text(10,2*fh,"Grab the window by the edge and resize wildly. Expect crash...",StdFont()).Fill(Black());
			bpainter.Finish();
			// Fast updates
			if(GetTopCtrl()&&GetTopCtrl()->GetHWND()){
				ViewDraw draw(this);
				SetSurface(draw,Rect(ib.GetSize()),ib,ib.GetSize(),Point(0,0));
			}
			
			// For slow / delayed updates use Refresh() instead:
			// Refresh();
		}
		
		void Layout(){
			ib.Create(GetSize());
			Render(Point(0,0));
		}
		
		void MouseMove(Point p, dword keyflags){
			Render(p);
		}
};


GUI_APP_MAIN
{
	BufferPainterCreateCrash().Execute();
	
}