/// <summary>
/// Converts this canvas to <see cref="Image"/>.
/// </summary>
/// <param name="rect">The area to crop from the bitmap.</param>
/// <returns>The <see cref="Imaging.Image"/> this method creates.</returns>
public Image ToImage(Rectangle rect)
{
using (System.Drawing.Bitmap bmp = this.ToBitmap())
{
if (bmp == null)
{
return(null);
}
return(rect.IsEmpty ? BitmapExtensions.FromBitmap(bmp) : BitmapExtensions.FromBitmap(bmp, rect));
}
}
/// <summary>
/// Creates an <see cref="Image"/> from a specified area of an encapsulated GDI+ bitmap.
/// </summary>
/// <param name="bitmap">The GDI+ bitmap from which to create the <see cref="Image"/>.</param>
/// <param name="rect">Defines the portion of the <paramref name="bitmap"/> to copy. Coordinates are relative to <paramref name="bitmap"/>.</param>
/// <returns>
/// The <see cref="Image"/> this method creates.
/// </returns>
/// <exception cref="ArgumentNullException">
/// <paramref name="bitmap"/> is <b>null</b>.
/// </exception>
public static Image FromBitmap(System.Drawing.Bitmap bitmap, Rectangle rect)
{
if (bitmap == null)
{
throw new ArgumentNullException(nameof(bitmap));
}
using (System.Drawing.Bitmap clonedBitmap = bitmap.Clone(
new System.Drawing.Rectangle(rect.X, rect.Y, rect.Width, rect.Height),
bitmap.PixelFormat))
{
return(BitmapExtensions.FromBitmap(clonedBitmap));
}
}
