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author | Berthold Krevert <berthold.krevert@basyskom.de> | 2012-06-06 13:52:29 +0200 |
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committer | Qt by Nokia <qt-info@nokia.com> | 2012-06-15 19:36:35 +0200 |
commit | 3a77bbe68b087890fe966035eeb12b917b087c15 (patch) | |
tree | 85117de272ad09b2b18508973883007c7a434fdb /.gitignore | |
parent | e83c3a0d33b7d8ffd0735136fb5e8b8c73f5bcfd (diff) |
Fix: Widgets that become top-level widgets may crash the application
You can reproduce the bug with the QMainWindow demo application: Just
dock the toolbar on the left side, then try to drag the bar back to
the top and observe that the application crashes.
This happens, because the toolbar becomes a top-level widget during the
dragging action and therefore some data structures like a window are
created. After the toolbar has been docked, it loses its top-level state
and the window object is destroyed. The same is not true for the backing
store structure, which still keeps a pointer to the destroyed window.
When the toolbar is dragged the next time, a new window object is created,
but the backing store tries to access the deleted one. Crash occurs.
Change-Id: I0d1ffc04c19ec14654ceb62a0d3cf7cf65cb952d
Reviewed-by: Girish Ramakrishnan <girish.1.ramakrishnan@nokia.com>
Diffstat (limited to '.gitignore')
0 files changed, 0 insertions, 0 deletions