public void DrawImage(object backend, object img, Rectangle srcRect, Rectangle destRect, double alpha)
{
var c = (DrawingContext)backend;
Bitmap bmp = DataConverter.AsBitmap(img);
DrawImageCore(c.Graphics, bmp, srcRect, destRect, (float)alpha);
}
public void DrawImage(object backend, object img, double x, double y, double width, double height, double alpha)
{
var c = (DrawingContext)backend;
Bitmap bmp = DataConverter.AsBitmap(img);
DrawImageCore(c.Graphics, bmp, (float)x, (float)y, (float)width, (float)height, (float)alpha);
}
public override object ChangeOpacity (object backend, double opacity)
{
Bitmap bitmap = DataConverter.AsBitmap (backend);
if (bitmap == null)
throw new ArgumentException ();
Bitmap result = new Bitmap (bitmap.Width, bitmap.Height, bitmap.PixelFormat);
Graphics g = Graphics.FromImage (result);
ContextBackendHandler.DrawImageCore (g, bitmap, 0, 0, bitmap.Width, bitmap.Height, (float)opacity);
g.Dispose ();
return result;
}
public object Create(object img)
{
Bitmap bmp = DataConverter.AsBitmap(img);
return(new TextureBrush(bmp, System.Drawing.Drawing2D.WrapMode.Tile));
}
