Re: Overhaul FLTK toolkit resize/redraw functions

[Ben Abbott]

On Jul 24, 2014, at 3:23 AM, Andreas Weber <address@hidden> wrote:

> Am 23.07.2014 20:18, schrieb Ben Abbott:
> 
>> On MacOS X, I can confirm that I'm able to print when the figure window is
>> minimized and I've built Octave using fltk_overhaul.diff.
>> 
>> However, line objects no longer print for me. For the example below, I've 
>> attached junk.pdf
>> 
>> figure (1)
>> clf ()
>> plot (rand(3))
>> print -dpdfwrite junk.pdf
>> 
> 
> Hi Ben, thanks for testing.
> 
> Do you see the lines in the plot window? Is this only when called
> figure(1), clf() before plot or does this also happen when calling
> plot(rand(3)) alone?
> 
> Please try:
> plot(rand(3))
> print -color -deps junk.eps
> 
> This bypasses "gs" and stores the ouput of gl2ps directly.
> 
> Then please try
> drawnow("eps", "dummy", false, "junk2.eps")
> 
> Which does basically the same as print -color -deps but doesn't do a
> resize of the canvas before drawnow which could be a reason for timing
> issues.
> 
> If it's a timing issue you could add
> 
> draw ();
> 
> in OpenGL_fltk::print just before glps_renderer rend (fp, term);
> 
> 
> For the MXE build we have a bug report #42534 "No lines when printing
> plot (fltk)" which perhaps could be related.
> 
> -- Andy
> 

The junk.eps file also has missing lines. However, junk2.eps includes the 
lines. Both are attached.  Adding the draw() command didn't fix the problem.

Ben