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  1. Qt
  2. QTBUG-65999

Crash after deleting a QGraphicsItem containing a QGraphicsProxyWidget which has focus (which embeds a QTableWidget)

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      Description

      Deleting a QGraphicsItem that contains a QGraphicsProxyWidget having focus seems to cause the application to crash.

      In the example attached, I launch the application with a simple QMainWindow containing a QGraphicsView and a QGraphicsScene.

      In the scene, I have only one top-level item which is a QGraphicsItemGroup.

      This QGraphicsItemGroup item contains a QGraphicsProxyWidget item, which embeds a QTableWidget (a 2x2 table containing "x" strings).

      Using an action in the menu bar of the main window, I delete the  QGraphicsItemGroup item.

      1) if the QGraphicsProxyWidget did not have focus, the deletion happen gracefully and the application does not crash.

      2) if the QGraphicsProxyWidget have focus (e.g. I clicked on it before clicking on the menu action), the application crashes. I am not using QT sources at the moment so I have only a limited amount of debug info, but it seems related with the findFocusChild method of the QGraphicsProxyWidget, which calls isEnabled() on a child that maybe does not exit ?

       

       

       

       

        Attachments

        1. bug_proxyWidget.pro
          1 kB
        2. bug_proxyWidget.pro.user
          23 kB
        3. main.cpp
          0.2 kB
        4. mainwindow.cpp
          2 kB
        5. mainwindow.h
          0.7 kB
        6. mainwindow.ui
          0.6 kB
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            Assignee:
            bibr Andreas Aardal Hanssen
            Reporter:
            alex85 Alexandre Hucher
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              Dates

              Created:
              Updated:
              Resolved:

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