QGIS » QGIS Application

It seems to happen only once the Editor window is enabled and you attempt a docking operation. Docking the Python console itself seems to work fine.
Toggling the Editor open then closed will cause docking operation to fail.

Doesn't seem to happen on Windows 7.

Confirmed here, too. Mac 10.7.5, latest master build.

I get a EXC_BAD_ACCESS crash, but with limited crash report info. Just a bunch (511) of these lines:

0   QtGui                             0x000000010d1e72b2 -[QCocoaWindow drawRectSpecial:] + 50
1   QtGui                             0x000000010d1e72de -[QCocoaWindow drawRectSpecial:] + 94
2   QtGui                             0x000000010d1e72de -[QCocoaWindow drawRectSpecial:] + 94
...
511 QtGui                             0x000000010d1e72de -[QCocoaWindow drawRectSpecial:] + 94

My guess at this point is that the ownership of the editor is in question, and that undocking/docking the console's doc changes parental ownership (on Mac, at least) and the editor isn't an appropriate descendant child when that happens. Dunno, just a guess.

Hi Gary and Larry,

I just saw this bug [1] and appears to be related to this issue.
The problem seems to be in QTabWidget.documentMode, if changed to False the crash should not occur.
so, please could you try commenting out line 609 [2] or set it to False
and let me know if it solves ?

[1] - https://bugreports.qt-project.org/browse/QTBUG-20104
[2] - https://github.com/qgis/Quantum-GIS/blob/master/python/console/console_editor.py#L609

Confirmed to fix the issue here: both docking and undocking. Nice cross-platform debug, Salvatore!

Having it be non-document mode should work OK, yes?

Thanks Larry !

I think the documentMode should not change the console behaviour,
so I would prefer to keep it adding a platform check.