// default clipping behavior is to clip at

					// default clipping behaviour is to clip at bounds

					// client area or bounds (dependent on whether there

					clipping = new Rectangle[] { child.getBounds() };

					// is an opaque border)

					boolean optimizeClip = getBorder() == null

							|| getBorder().isOpaque();

					clipping = new Rectangle[] { optimizeClip ? child

							.getBounds() : child.getBounds().getIntersection(

							getClientArea(PRIVATE_RECT)) };