public Image Inflate(int left, int top, int right, int bottom, BorderType borderType, uint borderValue)
{
// calculate and verify target area in source coordinates
Rectangle bounds = Rectangle.FromLTRB(
-left,
-top,
this.Width + right,
this.Height + bottom);
if (bounds.Width <= 0)
{
throw new ArgumentException("The new image width is invalid.");
}
if (bounds.Height <= 0)
{
throw new ArgumentException("The new image height is invalid.");
}
Image dst = new Image(bounds.Size, this);
// calculate source area to copy from
Rectangle srcarea = Rectangle.Intersect(bounds, this.Bounds);
// calculate destination area to copy to
Rectangle dstarea = Rectangle.Offset(srcarea, -bounds.X, -bounds.Y);
Image.CopyArea(dst, dstarea.X, dstarea.Y, srcarea.Width, srcarea.Height, this, srcarea.X, srcarea.Y);
// set border
dst.SetBorder(dstarea, borderType, borderValue);
dst.AppendTransform(new MatrixTransform(left, top));
return(dst);
}
