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QWidget: Don't offset the clip region for windows using effects

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When a top-level widget has a graphic effect applied,
QWidgetPrivate::clipToEffectiveMask() must not use the parent widget for
the mask calculation as this prevents the loop below from bailing out in
the first loop (w->isWindow()) and might mess up the clip region when
there is a widget with a mask in the parent chain.

Pick-to: 6.8
Fixes: QTBUG-131893
Change-Id: I5d5777e730bee309db21ad5eb65387d19321ee6c
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit 49f462b7f873ecba6bb205697338a4f1eef6d307)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This commit is contained in:
Christian Ehrlicher 2024-12-05 21:20:18 +01:00 committed by Qt Cherry-pick Bot
parent 351357c3a0
commit b338217360
1 changed files with 1 additions and 1 deletions
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src/widgets/kernel/qwidget.cpp
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@ -2123,7 +2123,7 @@ void QWidgetPrivate::clipToEffectiveMask(QRegion &region) const
QPoint offset; QPoint offset;
#if QT_CONFIG(graphicseffect) #if QT_CONFIG(graphicseffect)
if (graphicsEffect) { if (graphicsEffect && !w->isWindow()) {
w = q->parentWidget(); w = q->parentWidget();
offset -= data.crect.topLeft(); offset -= data.crect.topLeft();
} }