a90ea228ab
This is the next step in reducing the amount of typing in bookmaker, and presenting a web-base interface that more closely matches the include documentation. Moving towards making xxx_Reference solely contain use documentation, and xxx_Overview (unpublished) contain theory of operation documentation. Fixed quite a few bugs along the way, and made function and member documentation tighter. TBR=caryclark@google.com Docs-Preview: https://skia.org/?cl=160640 Change-Id: I763df4d59baa5dfd0177f0523294b5316434c4b0 Reviewed-on: https://skia-review.googlesource.com/c/160640 Reviewed-by: Cary Clark <caryclark@skia.org> Commit-Queue: Cary Clark <caryclark@skia.org> Auto-Submit: Cary Clark <caryclark@skia.org>
3.4 KiB
3.4 KiB
SkAutoCanvasRestore Reference
class SkAutoCanvasRestore { public: SkAutoCanvasRestore(SkCanvas* canvas, bool doSave); ~SkAutoCanvasRestore(); void restore(); };
Stack helper class calls SkCanvas::restoreToCount when SkAutoCanvasRestore goes out of scope. Use this to guarantee that the canvas is restored to a known state.
SkAutoCanvasRestore(SkCanvas* canvas, bool doSave)
Preserves Canvas save count. Optionally saves Canvas Clip and Canvas Matrix.
Parameters
canvas |
Canvas to guard |
doSave |
call SkCanvas::save() |
Return Value
utility to restore Canvas state on destructor
Example
See Also
SkCanvas::save SkCanvas::restore
~SkAutoCanvasRestore()
Restores Canvas to saved state. Destructor is called when container goes out of scope.
See Also
SkCanvas::save SkCanvas::restore
void restore()
Restores Canvas to saved state immediately. Subsequent calls and ~SkAutoCanvasRestore have no effect.
Example
Example Output
saveCanvas: false before restore: 2
saveCanvas: false after restore: 2
saveCanvas: true before restore: 2
saveCanvas: true after restore: 2
saveCanvas: false before restore: 2
saveCanvas: false after restore: 1
saveCanvas: true before restore: 2
saveCanvas: true after restore: 1
final count: 1