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openSUSE:Leap:15.2:Rings:1-MinimalX
libqt4
0225-invalidate-tabbar-geometry-on-refresh.patch
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File 0225-invalidate-tabbar-geometry-on-refresh.patch of Package libqt4
qt-bugs@ issue : None Trolltech task ID : None bugs.kde.org number : 159014 applied: no author: Robert Knight <robertknight@gmail.com> When tabs are inserted or removed in a QTabBar, QTabBarPrivate::refresh() is called to update the layout. If the tabbar widget is hidden, this just sets a boolean variable (layoutDirty) and returns, so the parent widget's layout is not notified about the possible geometry change. Prior to Qt 4.4 this was not a problem because the geometry was recalculated in QTabBar::sizeHint() if the layoutDirty variable was set. In Qt 4.4 however the layout caches size hint information in QWidgetItemV2. Since the cache information is not invalidated, the layout may end up using out-of-date size hint information to compute the widget size. If the QTabBar is empty when QTabBar::sizeHint() is called, it will return a size with a height of 0, which will be kept in the cache and so the tab bar will never be shown. This patch fixes the problem by calling updateGeometry() whenever the tab bar's layout is refreshed. Index: src/gui/widgets/qtabbar.cpp =================================================================== --- src/gui/widgets/qtabbar.cpp.orig +++ src/gui/widgets/qtabbar.cpp @@ -723,8 +723,8 @@ void QTabBarPrivate::refresh() layoutTabs(); makeVisible(currentIndex); q->update(); - q->updateGeometry(); } + q->updateGeometry(); } /*!
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