public void Clip(int left, int top, int width, int height)
{
var rect = new WICRect();
rect.X = left;
rect.Y = top;
rect.Width = width;
rect.Height = height;
var clip = WICImagingFactory.CreateBitmapClipper();
clip.Object.Initialize(_comObject.Object, ref rect).ThrowOnError();
_comObject?.Dispose();
_comObject = clip;
}
public void CenterClip(int?width, int?height)
{
if (!width.HasValue && !height.HasValue)
{
return;
}
var rect = new WICRect();
int w = Width;
int h = Height;
if (width.HasValue && width.Value < w)
{
rect.Width = width.Value;
rect.X = (w - width.Value) / 2;
}
else
{
rect.Width = w;
rect.X = 0;
}
if (height.HasValue && height.Value < h)
{
rect.Height = height.Value;
rect.Y = (h - height.Value) / 2;
}
else
{
rect.Height = h;
rect.Y = 0;
}
var clip = WICImagingFactory.CreateBitmapClipper();
clip.Object.Initialize(_comObject.Object, ref rect).ThrowOnError();
_comObject?.Dispose();
_comObject = clip;
}