Rect.clip

機能/意味
Rectangle clipping
タイプ
Rectクラスのメソッド
構文
clip(r)
引数
r  Specifies the rectangle object to clip.
戻り値
Whether clipping is performed
説明
 Performs rectangle clipping on the specified rectangle.
 Clipping occurs only if the rectangle is not empty.
 If it is empty, false is returned and no clipping is performed.
参照
Rect.isEmpty