[Octave-bug-tracker] [bug #46654] Quirks with closing Figures and updating Figure sizes (gnuplot)

[Ben Abbott]

Update of bug #46654 (project octave):

                  Status:               Confirmed => Wont Fix               
        Operating System:               GNU/Linux => Any                    

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Follow-up Comment #2:

These are both features of using gnuplot. Octave has no direct control over
gnuplot figure windows after they have been created. This lacking was a major
motivation for introducing native OpenGL graphics toolkits.

For case 1, closing a gnuplot window by clicking [X] is not an event that
Octave is able to detect. Thus, figure (1) still exists (as far as Octave
knows. Thus,


close all
figure
% close figure 1 using mouse
figure
findobj (0, 'type', 'figure')


Is equivalent to


close all
figure
figure
findobj (0, 'type', 'figure')


In each case, Octave still has two figures open and the findobj() command will
return 


ans = 
2
1


For case 2, there is no mechanism for Octave to resize a gnpuplot window after
it has been created. It is also not possible for Octave to determine the size
of gnuplot windows. Meaning that if the mouse is used to resize the gnuplot
window, Octave will be unaware of the change.

It is possible to specify a window's position and size when it is created.
This can be done by specifying the figure's "position" when it is created.


close (1)
figure (1, "position", [x, y, w, h])


This behavior is OS independent and has been addressed by the introduction of
the OpenGL toolkits. Thus, I'm marking this as "won't fix".


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