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| author | Alexis Menard <alexis.menard@nokia.com> | 2009-05-27 08:30:07 (GMT) |
|---|---|---|
| committer | Alexis Menard <alexis.menard@nokia.com> | 2009-05-27 08:34:16 (GMT) |
| commit | 80bc757b56953065fafeffe6c4b8fb6fbca287ac (patch) | |
| tree | 0aaab82faaa56f12ed0a00362c09bdf7a0b78ca5 /tests/benchmarks/qiodevice/qiodevice.pro | |
| parent | 0bcfa7aa496d460c72862369662560c49eb55f17 (diff) | |
| download | Qt-80bc757b56953065fafeffe6c4b8fb6fbca287ac.zip Qt-80bc757b56953065fafeffe6c4b8fb6fbca287ac.tar.gz Qt-80bc757b56953065fafeffe6c4b8fb6fbca287ac.tar.bz2 | |
Avoid deep copies of pixmaps when using cache in QGraphicsView.
When we have already a pixmap of an item in the cache, we should
remove the entry from the cache otherwise when we will repaint/modify
the copy of the pixmap (the copy of the cache) then we will trigger a
deep copy ; this is because both entries in the cache and our copy
share the same data and if you modify one of them a copy is triggered.
I have added a benchmark as well to test that.
Reviewed-by:bnilsen
Reviewed-by:andreas
Diffstat (limited to 'tests/benchmarks/qiodevice/qiodevice.pro')
0 files changed, 0 insertions, 0 deletions