Re: patch to be applied to default or stable ?

[John W. Eaton]

On 28-Jan-2012, Ben Abbott wrote:

| I'm able to fix the problem. I've been reverting your reversion below and 
thought it was a MacOS X only thing.
| 
|       
http://hg.savannah.gnu.org/hgweb/octave/diff/1367f2db49a2/src/graphics.cc
| 
| With the sources up to date and reverting this specific changeset, the fltk 
output works correctly for me.
| 
| If you apply the simple change below, does the fltk toolkit work as expected ?

Unfortunately, no.  It fails for a pair of figures that are generated
in some horribly complicated way by an example from the MTEX package
(http://code.google.com/p/mtex).

If you are really interested, you can try to see the problem by doing
the following:

 * Download mtex 3.2.2

 * Unpack it and cd to the mtex-3.2.2 directory

 * Edit the file mtex_settings.m and uncomment the line

     %set_mtex_option('GrainSelector','off')

 * Create symbolic link in c/bin for your architecture.  This
   directory has some binaries (ick, I know) for systems that run
   Matlab.  For my system, I needed to do

     ln -s glnxa64 -> gnu-linux-x86_64

   in the c/bin directory

 * In the top-level directory, run Octave and type

     startup_mtex

     (answer no to the question about installing mtex globally)

     warning off Octave:missing-glyph
     more off
     graphics_toolkit fltk
     grain_demo

You should get two plots that look something like the first pair of
screenshots attached below.  With the current stable sources, this is
what I see.  With your small patch applied, I get the second set of
badly sized and blank plots.

But these plot is generated by so much code spread around in many places
that I think it will be very hard to debug.

jwe