public static Size PreserveAspectRatioWithinBounds(this Size size, Size bounds)
{
var aspectRactio = size.Width / size.Height;
var fitWidth = new Size(bounds.Width, bounds.Width / aspectRactio);
var fitHeight = new Size(bounds.Height * aspectRactio, bounds.Height);
return bounds.Contains(fitWidth) ? fitWidth : fitHeight;
}
