#ifndef _AutoResizeTopWindow_h_
#define _AutoResizeTopWindow_h_

#include <CtrlLib/CtrlLib.h>
using namespace Upp;

class AutoResizeTopWindow : public virtual TopWindow
{
public:
	virtual void Layout()
	{
		Size currentSize = GetSize();
		if(firstSizing)
			startSize = currentSize;
		
		float sizeXChange = (float)currentSize.cx / (float)startSize.cx;
		float sizeYChange = (float)currentSize.cy / (float)startSize.cy;
		
		Ctrl* pChild = GetFirstChild();
		for(int i = 0; pChild != NULL; i++)
		{
			if(firstSizing)
				startRects.Add(pChild->GetRect());
			
			float rectLeft	= startRects[i].left * sizeXChange;
			float rectTop	= startRects[i].top * sizeYChange;
			float rectSizeX	= startRects[i].Width() * sizeXChange;
			float rectSizeY	= startRects[i].Height() * sizeYChange;
			
			pChild->SetRect(rectLeft, rectTop,
							rectSizeX, rectSizeY);
			
			pChild = pChild->GetNext();
		}
		firstSizing = false;
	}

private:
	bool firstSizing = true;
	Size startSize;
	Vector<Rect> startRects;
};

#endif