diff options
Diffstat (limited to 'include/core/SkPicture.h')
| -rw-r--r-- | include/core/SkPicture.h | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/include/core/SkPicture.h b/include/core/SkPicture.h index 35b4d056a5..80c3ca30a1 100644 --- a/include/core/SkPicture.h +++ b/include/core/SkPicture.h @@ -9,8 +9,6 @@ #ifndef SkPicture_DEFINED #define SkPicture_DEFINED -#include "SkBitmap.h" -#include "SkDrawPictureCallback.h" #include "SkImageDecoder.h" #include "SkRefCnt.h" #include "SkTDArray.h" @@ -19,6 +17,7 @@ class GrContext; #endif +class SkBitmap; class SkBBoxHierarchy; class SkCanvas; class SkData; @@ -102,6 +101,24 @@ public: ~SkPicture(); + /** + * Subclasses of this can be passed to playback(). During the playback + * of the picture, this callback will periodically be invoked. If its + * abort() 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 playback call was made. + */ + class SK_API AbortCallback { + public: + AbortCallback() {} + virtual ~AbortCallback() {} + + virtual bool abort() = 0; + }; + /** Replays the drawing commands on the specified canvas. Note that this has the effect of unfurling this picture into the destination canvas. Using the SkCanvas::drawPicture entry point gives the destination @@ -109,7 +126,7 @@ public: @param canvas the canvas receiving the drawing commands. @param callback a callback that allows interruption of playback */ - void playback(SkCanvas* canvas, SkDrawPictureCallback* = NULL) const; + void playback(SkCanvas* canvas, AbortCallback* = NULL) const; /** Return the cull rect used when creating this picture: { 0, 0, cullWidth, cullHeight }. It does not necessarily reflect the bounds of what has been recorded into the picture. |