public override void DrawImage(object backend, ImageDescription img, double x, double y)
{
var c = (DrawingContext)backend;
WpfImage bmp = (WpfImage)img.Backend;
bmp.Draw(ApplicationContext, c.Context, c.ScaleFactor, x, y, img);
}
public override void RenderImage(object nativeWidget, object nativeContext, ImageDescription img, double x, double y)
{
WpfImage im = (WpfImage)img.Backend;
System.Windows.Media.DrawingContext dc = nativeContext as System.Windows.Media.DrawingContext;
FrameworkElement w = (FrameworkElement)nativeWidget;
if (dc != null)
{
im.Draw(ApplicationContext, dc, Util.GetScaleFactor(w), x, y, img);
}
}
public override void DrawImage(object backend, ImageDescription img, Rectangle srcRect, Rectangle destRect)
{
var c = (DrawingContext)backend;
WpfImage bmp = (WpfImage)img.Backend;
c.Context.PushClip(new RectangleGeometry(destRect.ToWpfRect()));
c.Context.PushTransform(new TranslateTransform(destRect.X - srcRect.X, destRect.Y - srcRect.Y));
var sw = destRect.Width / srcRect.Width;
var sh = destRect.Height / srcRect.Height;
c.Context.PushTransform(new ScaleTransform(sw, sh));
bmp.Draw(ApplicationContext, c.Context, c.ScaleFactor, 0, 0, img);
c.Context.Pop(); // Scale
c.Context.Pop(); // Translate
c.Context.Pop(); // Clip
}