_callback _container _fillColor _lineColor _path beginPath beginShape bezierTo checkNeedFire clearRect clipPath clipRect closePath drawBitmap drawEllipse drawHandle drawLine drawPath drawRect drawTextAt endOutput endShape fireLastPath GiShapeAdapter hasFillColor hasLineColor lineTo moveTo quadTo restoreClip saveClip setBrush setPen

clipRect() bool GiShapeAdapter::clipRect ( float  x, float  y, float  w, float  h  ) virtual Intersect the current clipping path with `rect'. Note that this function resets the context's path to the empty path. 返回 true if successful and the result clipping path isn't empty. 参见 saveClip, restoreClip 实现了 GiCanvas.