[Octave-bug-tracker] [bug #35393] Switching figure toolkit with graphics_toolkit() closes figure

[Ben Abbott]

Update of bug #35393 (project octave):

                  Status:                    None => In Progress            
             Assigned to:                    None => bpabbott               
                 Release:                   3.6.0 => dev                    

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Follow-up Comment #2:

I tried the script below.


close all
graphics_toolkit fltk;
h1 = figure (1);
peaks
graphics_toolkit (h1, "gnuplot");  # Figure disappears

graphics_toolkit gnuplot
h2 = figure (2);
peaks
graphics_toolkit (h2, "fltk");


The result is correct. Figure 1 contains the proper plot in a gnuplot window
and figure 2 contains the proper plot in an FLTK window.

I don't understand how FLTK knows the window needs to be shut when it is
swtiched to gnuplot, but it looks like the fix for the reported problem needs
a very simple updater


figure::properties::update___graphics_toolkit__ (void)
{
  set___modified__ ("on");
}


I'll make an attempt to fix this.

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