public static ImageSource SwapColors(ImageSource imageSource, ColorCallback colorCallback)
{
if (colorCallback == null)
{
throw new ArgumentNullException("colorCallback");
}
ImageSource imageSource1 = imageSource;
if (imageSource != null)
{
DrawingImage drawingImage;
if ((drawingImage = imageSource as DrawingImage) != null)
{
ColorSwapper.SwapColorsWithoutCloning(((DrawingImage)(imageSource1 = (ImageSource)drawingImage.Clone())).Drawing, colorCallback);
imageSource1.Freeze();
}
else
{
BitmapSource bitmapSource;
if ((bitmapSource = imageSource as BitmapSource) != null)
{
imageSource1 = (ImageSource)ColorSwapper.SwapColors(bitmapSource, colorCallback);
}
else
{
throw new ArgumentException(string.Format((IFormatProvider)CultureInfo.CurrentCulture, ExceptionStringTable.UnexpectedImageSourceType, new object[1]
{
(object)imageSource.GetType().Name
}));
}
}
}
return(imageSource1);
}
private static ImageSource SwapColorsWithoutCloningIfPossible(ImageSource imageSource, ColorCallback colorCallback)
{
ImageSource imageSource1 = imageSource;
if (imageSource != null)
{
DrawingImage drawingImage;
if ((drawingImage = imageSource as DrawingImage) != null)
{
ColorSwapper.SwapColorsWithoutCloning(drawingImage.Drawing, colorCallback);
}
else
{
BitmapSource bitmapSource;
if ((bitmapSource = imageSource as BitmapSource) != null)
{
imageSource1 = (ImageSource)ColorSwapper.SwapColors(bitmapSource, colorCallback);
}
else
{
throw new ArgumentException(string.Format((IFormatProvider)CultureInfo.CurrentCulture, ExceptionStringTable.UnexpectedImageSourceType, new object[1]
{
(object)imageSource.GetType().Name
}));
}
}
}
return(imageSource1);
}