Image PropRescale(const Image& im, const Size res_size);
Image PropRescale(const Image& im, const int cx, const int cy);
Image PropRescale(const Image& im, const ImageCtrl& imc);
void PropRescale(const Image& im, ImageCtrl& imc ,const bool setimage);

Image PropRescale(const Image& im, const Size res_size){
	Size imsize,ressize=res_size;
	imsize = im.GetSize();
	if (imsize.cx > 0 && imsize.cy > 0) {
		double ixy = double(imsize.cx)/imsize.cy;
		double rxy = double(ressize.cx)/ressize.cy;
		if (rxy>ixy) {
			ressize.cx = ressize.cy*imsize.cx/imsize.cy;
		} else {
			ressize.cy = ressize.cx*imsize.cy/imsize.cx;
		}
		return Rescale(im,ressize);
	}
}

Image PropRescale(const Image& im,const int cx,const int cy) {
	Size ressize;
	ressize.cx = cx;
	ressize.cy = cy;
	return PropRescale(im,ressize);
}

Image PropRescale(const Image& im, const ImageCtrl& imc) {
	Image i = PropRescale(im,imc.GetSize());
	return i;
}

void PropRescale(const Image& im, ImageCtrl& imc ,const bool setimage) {
	Image i = PropRescale(im,imc.GetSize());
	if (setimage) imc.SetImage(i);
	return;
}

template <class T>
Rect_<T> FitInFrame(const Size_<T> &frame, const Size_<T> &object)
{
	double frameAspect  = frame.cx/(double)frame.cy; 
	double objectAspect = object.cx/(double)object.cy;	
	
	if (frameAspect > objectAspect) {
		double x = (frame.cx - objectAspect*frame.cy)/2.;
		return Rect_<T>((T)x, 0, (T)(x + objectAspect*frame.cy), frame.cy);
	} else {
		double y = (frame.cy - frame.cx/objectAspect)/2.;
		return Rect_<T>(0, (T)y, frame.cx, (T)(y + frame.cx/objectAspect));
	}
}

void MyImage::Paint(Draw& w) {
	w.DrawImage(FitInFrame(GetSize(), image->GetSize()), image);
}