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[Octave-bug-tracker] [bug #44866] Issues with copy to clipboard


From: Guillaume
Subject: [Octave-bug-tracker] [bug #44866] Issues with copy to clipboard
Date: Fri, 17 Apr 2015 16:35:46 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:37.0) Gecko/20100101 Firefox/37.0

URL:
  <http://savannah.gnu.org/bugs/?44866>

                 Summary: Issues with copy to clipboard
                 Project: GNU Octave
            Submitted by: gyom
            Submitted on: Fri 17 Apr 2015 04:35:45 PM GMT
                Category: Plotting with OpenGL
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
             Assigned to: None
         Originator Name: Guillaume
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

I am testing the copy to clipboard option recently introduced by @jwe and
noticed a number of things:

* I sometimes have to select "copy" several times before it effectively
appears in the clipboard (tested by Edit>Paste in GIMP) and it never seems to
be there the first time I "copy" a figure.

* If a figure is empty, there is a segmentation fault:


>> error: print: no axes object in figure to print
error: called from
    print at line 305 column 5
[xcb] Unknown sequence number while processing queue
[xcb] Most likely this is a multi-threaded client and XInitThreads has not
been called
[xcb] Aborting, sorry about that.
octave-gui: xcb_io.c:274: poll_for_event: Assertion
`!xcb_xlib_threads_sequence_lost' failed.
panic: Aborted -- stopping myself...
attempting to save variables to 'octave-workspace'...
save to 'octave-workspace' complete
Aborted


* I've seen that the code will ultimately ask for image format but maybe
default for now could be PNG, to minimize compression.

* Definitely not "normal" usage but if I press Ctrl-C repeatedly (quickly) in
a figure, Octave will eventually segfault:


>> octave-gui: Fatal IO error 11 (Resource temporarily unavailable) on X
server :0.0.
octave-gui: Fatal IO error 2 (No such file or directory) on X server :0.0.
panic: Segmentation fault -- stopping myself...
attempting to save variables to 'octave-workspace'...
save to 'octave-workspace' complete
Segmentation fault





    _______________________________________________________

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