[Qt-interest] Undocking QDockWidgets

[Austin Smith]

QDockWidget has a signal DockAreaChanged, but that appears to only emit a
signal when the widget is docked into a new location, not when you undock it
and let it float.  Is there any way to emit a signal when a user undocks a
QDockWidget so that it's floating undocked?

My only other idea is to do an ugly test every time a mouse release event
occurs and query isFloating() and go from there.  Is there any cleaner way
to do it?

Thanks,
Austin
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