/// <summary>
/// Swap the colors in an image based on a color mapping provided by the ColorCallback</summary>
/// <param name="imageSource">Original image</param>
/// <param name="colorCallback">Callback to provide the color mapping</param>
/// <returns>Color-swapped image</returns>
public static ImageSource SwapColors(ImageSource imageSource, ColorCallback colorCallback)
{
if (colorCallback == null)
{
throw new ArgumentNullException("colorCallback");
}
ImageSource source = imageSource;
if (imageSource == null)
{
return(source);
}
DrawingImage image = imageSource as DrawingImage;
if (image != null)
{
source = image = image.Clone();
SwapColorsWithoutCloning(image.Drawing, colorCallback);
source.Freeze();
return(source);
}
BitmapSource bitmapSource = imageSource as BitmapSource;
if (bitmapSource == null)
{
throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, "UnexpectedImageSourceType", new object[] { imageSource.GetType().Name }));
}
return(SwapColors(bitmapSource, colorCallback));
}