public override void Perform()
{
WriteableBitmap wbmp = (WriteableBitmap)TargetImage.Source;
// clamp to valid ranges
Int32Rect drawRect = Clamp(wbmp, DrawRect);
WriteableBitmapWriter writer = WriteableBitmapWriter.CreateWriter((int)wbmp.PixelHeight, wbmp.BackBufferStride, wbmp.Format);
writer.SetWriteableBitmapPixels(wbmp, drawRect, DrawColor);
}
public override WriteableBitmap Create(DeterministicRandom random)
{
int width = random.Next(400) + 1;
int height = random.Next(400) + 1;
WriteableBitmap wbmp = new WriteableBitmap(width, height, DpiX, DpiY, PixelFormat, GetPalette(PixelFormat, random));
WriteableBitmapWriter writer = WriteableBitmapWriter.CreateWriter(height, wbmp.BackBufferStride, PixelFormat);
writer.SetWriteableBitmapPixels(wbmp, new Int32Rect(0, 0, width, height), random);
return(wbmp);
}
