Dear all, In my app, I have two main widgets : - One displaying a tree (TreeWidget) and allowing selecting nodes. - One for editing the selected node (EditWidget), embedded in a QScrollArea
Selecting a node sets a new EditWidget using QScrollArea::setWidget. This deletes the previous widget with a standard "delete" statement as seen in Qt code. One of the possible actions in EditWidget tells the TreeWidget to select another node. This is the issue : it crashes because a queued event (generally a focus out) gets called while the widget is deleted already. 1) I know could use a QueuedConnection for the previously described action, but I don't like that kind of GUI design where a QueuedConnection is required to avoid an app crash... 2) I could use scrollArea->takeWidget()->deleteLater() before setWidget(). I will try that. 3) Wouldn't it be better to use deleteLater() in the QScrollArea::setWidget ? This would solve the issue here. How about changing this in Qt source? I'm using 4.8.1 Etienne
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