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  1. Qt
  2. QTBUG-102395

QMainWindow::restoreState corrupts relation between toolbars layout item

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    • 2ed54dedf3 (qt/qtbase/dev) 2ed54dedf3 (qt/tqtc-qtbase/dev) 1ed89b7012 (qt/qtbase/6.4) 1ed89b7012 (qt/tqtc-qtbase/6.4) 53e3c7ed9f (qt/qtbase/6.3) 53e3c7ed9f (qt/tqtc-qtbase/6.3) 5b409aa872 (qt/tqtc-qtbase/6.2) da4f2177f8 (qt/tqtc-qtbase/5.15)

      After QMainWindow::restoreState() is called the widgetItem is set to nullptr for the toolbar. Which can lead to crash in some situation.

      When looking into more deeper, A toolbar knows the layout item (it is a QWidgetItemV2 instance) which are wrapped in (via QWidgetPrivate::widgetItem) But after QMainWindow::restoreState the widgetItem is set to nullptr for the toolbar, although there is a new layout item containing it.

      I attached a small program to reproduce the problem. It logs Null pointer after restoreState.

        1. qtbug102395.zip
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          Irfan Omair
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            ivan.solovev Ivan Solovev
            irfan.omair@digia.com Irfan Omair
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