[Octave-bug-tracker] [bug #53475] Resizing the window does not trigger a plot redraw/resize (Qt)

[Rik]

Update of bug #53475 (project octave):

                Category:                Plotting => Plotting with OpenGL   
              Item Group:                    None => Incorrect Result       
                  Status:                    None => Confirmed              
                 Release:                   4.2.1 => dev                    
                 Summary: Resizing the window does not trigger a plot
redraw/resize => Resizing the window does not trigger a plot redraw/resize
(Qt)

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Follow-up Comment #7:

Clicking in the title bar should not be enough to cause a re-draw, but
clicking on a menubar item (File, Edit, Help), or one of the toolbar widgets
such as Autoscale, Grid, etc. is.

Simple code to demonstrate is


graphics_toolkit qt
demo sombrero
## Click on Maximize Window button


The actual sombrero will now take up only a small portion of the blank white
canvas area.

I'm sure this is because we're not processing some of the events like Maximize
Window.  This thread looks relevant:
http://www.qtcentre.org/threads/46548-Catch-maximize-and-restore-events.

The code to modify is going to be in libgui/graphics.  Probably Canvas.cc, but
maybe Figure.cc.  In any case, this can't be fixed for the 4.4.0 release, but
maybe for the 5.0 release.



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