[Octave-bug-tracker] [bug #44776] [Qt] Restore window button does not trigger a repaint event for its content

[anonymous]

Follow-up Comment #14, bug #44776 (project octave):

Hi! I've just noticed this bug too. 

The main issue is that the QEvent::Resize / QResizeEvents are not emitted by
qt for window restore - rather you need to listen for a
QEvent::WindowStateChange       / QWindowStateChangeEvent, then look at the
difference between the QWindowStateChangeEvent.oldState() and 
QWidget.windowState().

This could probably be done in Figure.cc and then a fake QEvent::Resize could
be emitted to pass the event down to all the children. 

On the other issue of fast-dragging updates (first mentioned in comment #2) I
agree with Dan Sebald's comment #10. I suspect that the problem is one of
simultaneous read/write of window size and/or reordering of events between the
octave and QT threads. Regarding failure to resize in busy octave threads -
this can be a problem in matlab too.

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