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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef SkDrawPictureCallback_DEFINED | 8 #ifndef SkDrawPictureCallback_DEFINED |
9 #define SkDrawPictureCallback_DEFINED | 9 #define SkDrawPictureCallback_DEFINED |
10 | 10 |
11 #include "SkTypes.h" | 11 #include "SkTypes.h" |
12 | 12 |
13 #ifdef SK_LEGACY_DRAWPICTURECALLBACK | |
14 #include "SkPicture.h" | |
15 | |
16 /** | 13 /** |
17 * Subclasses of this can be passed to canvas.drawPicture(). During the drawing | 14 * Subclasses of this can be passed to canvas.drawPicture(). During the drawing |
18 * of the picture, this callback will periodically be invoked. If its | 15 * of the picture, this callback will periodically be invoked. If its |
19 * abortDrawing() returns true, then picture playback will be interrupted. | 16 * abortDrawing() returns true, then picture playback will be interrupted. |
20 * | 17 * |
21 * The resulting drawing is undefined, as there is no guarantee how often the | 18 * The resulting drawing is undefined, as there is no guarantee how often the |
22 * callback will be invoked. If the abort happens inside some level of nested | 19 * callback will be invoked. If the abort happens inside some level of nested |
23 * calls to save(), restore will automatically be called to return the state | 20 * calls to save(), restore will automatically be called to return the state |
24 * to the same level it was before the drawPicture call was made. | 21 * to the same level it was before the drawPicture call was made. |
25 */ | 22 */ |
26 class SK_API SkDrawPictureCallback : public SkPicture::AbortCallback { | 23 class SK_API SkDrawPictureCallback { |
27 public: | 24 public: |
| 25 SkDrawPictureCallback() {} |
| 26 virtual ~SkDrawPictureCallback() {} |
| 27 |
28 virtual bool abortDrawing() = 0; | 28 virtual bool abortDrawing() = 0; |
| 29 }; |
29 | 30 |
30 bool abort() SK_OVERRIDE { return this->abortDrawing(); } | 31 #endif//SkDrawPictureCallback_DEFINED |
31 }; | |
32 #endif | |
33 | |
34 #endif // SkDrawPictureCallback_DEFINED | |
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