186d08f621
- More rigorous symbol identification creates additional links, and finds spurious errors like unnecessary parentheses. - Fixed code to allow preprocessor directives in #Code blocks (still more to do). - Fixed examples waiting on fiddle updates. - Make SkImageInfo officially documented (update in status.json). - Fixed enum indentation. Docs-Preview: https://skia.org/?cl=115656 Bug: skia:6898 Change-Id: Ifcf5cfd3f6c03b3b83155c898b2b035a2f3d443c Reviewed-on: https://skia-review.googlesource.com/115656 Commit-Queue: Cary Clark <caryclark@skia.org> Reviewed-by: Cary Clark <caryclark@skia.org>
3.9 KiB
3.9 KiB
SkAutoCanvasRestore Reference
Automatic Canvas Restore
Overview
Overview Subtopic
| name | description |
|---|---|
| Constructor | functions that construct SkAutoCanvasRestore |
| Member Function | static functions and member methods |
Class SkAutoCanvasRestore
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.
Constructor
| name | description |
|---|---|
| SkAutoCanvasRestore(SkCanvas* canvas, bool doSave) | preserves Canvas save count |
| ~SkAutoCanvasRestore() | restores Canvas to saved state |
Member Function
| name | description |
|---|---|
| restore | restores Canvas to saved state |
SkAutoCanvasRestore
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
~SkAutoCanvasRestore()
Restores Canvas to saved state. Destructor is called when container goes out of scope.
See Also
SkCanvas::save SkCanvas::restore
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
See Also
SkCanvas::save SkCanvas::restore