}
}
+void RenderControl::drawMask(Surface &sf, const RenderColor &color,
+ const PixmapMask &mask) const
+{
+ assert(_screen == sf._screen);
+ assert(_screen == color.screen());
+
+ if (mask.mask == None) return; // no mask given
+
+ int width = sf.size().width(), height = sf.size().height();
+
+ // set the clip region
+ int x = (width - mask.w) / 2, y = (height - mask.h) / 2;
+ XSetClipMask(**display, color.gc(), mask.mask);
+ XSetClipOrigin(**display, color.gc(), x, y);
+
+ // fill in the clipped region
+ XFillRectangle(**display, sf.pixmap(), color.gc(), x, y,
+ x + mask.w, y + mask.h);
+
+ // unset the clip region
+ XSetClipMask(**display, color.gc(), None);
+ XSetClipOrigin(**display, color.gc(), 0, 0);
+}
+
}