- if (_surface) {
- context->set_source (_surface, 0, 0);
- context->rectangle (area.x0, area.y0, area.width(), area.height());
+ Rect self = item_to_window (Rect (0, 0, _width, _height));
+ Rect draw = self.intersection (area);
+
+ if (_surface && draw) {
+ context->set_source (_surface, self.x0, self.y0);
+ context->rectangle (draw.x0, draw.y0, draw.width(), draw.height());