Christian Ehrlicher c63c918f3a QLabel: don't cache scaled pixmap in QIcon ...

Caching the scaled QPixmap directly in QIcon is not a good idea
 - the cached pixmap might be used as starting point for a pixmap with
   another size so it gets blurry
 - QIcon has no caching mechanism to throw away unneeded QPixmaps after
   some time so the memory usage grows indefinitely

Fixes: QTBUG-134930
Change-Id: Ic490ba15438a5cd07a555692e1d08cd1c211d005
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit 7a238e1225f49b81772516ed5d0a5a4f4f2e9268)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit 04cb0a1b55cc3c2b402d22f9f7a76b726407dc71)
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>

2025-03-24 05:35:41 +00:00

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QLabel: don't cache scaled pixmap in QIcon

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