Re: Overhaul FLTK toolkit resize/redraw functions

[Ben Abbott]

On Jul 24, 2014, at 2:56 PM, sergey plotnikov <address@hidden> wrote:

> 24.07.2014 19:10, Ben Abbott пишет:
>> On Jul 24, 2014, at 9:12 AM, Ben Abbott <address@hidden>
>>  wrote:
>> 
>> 
>>> 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
>>> 
>>> <junk.eps><junk2.eps>
>>> 
>> Andreas,
>> 
>> It occurred to me that the line are likely present, but hidden. Thus, I 
>> tried ...
>> 
>>      graphics_toolkit fltk
>>      plot (rand (3))
>>      set (gca (), 'color', 'none')
>>      print -dpdfwrite junk.pdf
>> 
>> ... and the lines are now present in junk.pdf (see attached).  Are you are 
>> able to test the MXE build to determine if this is also true for bug #42534?
>> 
>> Ben
> 
> Ben, Andreas,
> 
> 
> I've tested this, since I'm able to replicate the bug. And actually Ben was 
> right, lines are kind of hidden, but in my case, if I don't set axes color to 
> 'none' they are hidden just partially (see junk2.pdf in attachment). 
> 
> And to my understanding it might be somehow related to the sorting algorithm 
> we are choosing in gl2ps_renderer.
> <junk2.pdf><junk.pdf>

Sergey,

Can you try the attached version?  This is the same as Adreas' but keeps the 
duplicate "Fl::check ();"

Ben

fltk_overhaul-2.diff
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