blob: e86a227e6265aa014a17f009f799bc053ac40d82 [file] [log] [blame]
* Copyright 2014 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#ifndef SkDrawPictureCallback_DEFINED
#define SkDrawPictureCallback_DEFINED
* Subclasses of this can be passed to canvas.drawPicture(). During the drawing
* of the picture, this callback will periodically be invoked. If its
* abortDrawing() returns true, then picture playback will be interrupted.
* The resulting drawing is undefined, as there is no guarantee how often the
* callback will be invoked. If the abort happens inside some level of nested
* calls to save(), restore will automatically be called to return the state
* to the same level it was before the drawPicture call was made.
class SK_API SkDrawPictureCallback {
SkDrawPictureCallback() {}
virtual ~SkDrawPictureCallback() {}
virtual bool abortDrawing() = 0;