CairoSamples.Form1.clipImageToolStripMenuItem_Click C# (CSharp) Метод

        private void clipImageToolStripMenuItem_Click(object sender, EventArgs e)
        {
            lastSelected = "clipImage";
            OnPaintAction = cr =>
            {
                int w, h;
                ImageSurface image;

                cr.Arc(128.0, 128.0, 76.8, 0, 2 * Math.PI);
                cr.Clip();
                cr.NewPath(); /* path not consumed by clip()*/

                image = new ImageSurface(romedalenPngData);
                w = image.Width;
                h = image.Height;

                cr.Scale(256.0 / w, 256.0 / h);

                cr.SetSource(image, 0, 0);
                cr.Paint();

                image.Dispose();
            };

            Invalidate();
        }