public override void Draw(Bitmap bitmap, int x, int y)
{
using (Cairo.Surface s = new BitmapSurface(bitmap)) {
cr.SetSourceSurface(s, x + xOffset, y + yOffset);
using (Cairo.SurfacePattern pattern = (Cairo.SurfacePattern)cr.GetSource()) {
pattern.Filter = Cairo.Filter.Nearest;
}
cr.Paint();
}
}
public void Apply(Cairo.Context context)
{
if (!ReferenceEquals(Transform, null))
{
context.Transform(Transform);
}
if (opacityImage == null)
{
opacityImage = new Bitmap(Image.Size, PixelFormat.Format32bppRgba);
using (var g = new Graphics(opacityImage))
{
g.DrawImage(Image, 0, 0);
}
using (var bd = opacityImage.Lock())
{
for (int x = 0; x < opacityImage.Width; x++)
{
for (int y = 0; y < opacityImage.Height; y++)
{
var c = bd.GetPixel(x, y);
bd.SetPixel(x, y, new Color(c, c.A * Opacity));
}
}
}
}
var img = opacityImage ?? Image;
Gdk.CairoHelper.SetSourcePixbuf(context, img.ToGdk(), 0, 0);
var pattern = context.GetSource();
var surfacePattern = pattern as Cairo.SurfacePattern;
if (surfacePattern != null)
{
surfacePattern.Extend = Cairo.Extend.Repeat;
}
if (!ReferenceEquals(InverseTransform, null))
{
context.Transform(InverseTransform);
}
pattern.Dispose();
}
