Re: [Gtk2hs-users] Problem with Notebook and Caps-lock

[Bartosz W. <ba...@su...>]

On Thursday 15 July 2010 13:35:38 Bartosz Wójcik wrote:
> On Thursday 15 July 2010 10:28:00 Andy Stewart wrote:
> > Bartosz Wójcik <ba...@su...> writes:
> > > Hi Andy,
> > >
> > > I'll although it'll take me some time.
> > > I've created abstraction which is supposed to help with simple ui. For
> > > minimum program I'll have to trim it. I hoped smb might have an idea
> > > without minimum program, therefore I've sent this post before creating
> > > minimum program.
> >
> > Like Axel said, from your warning/critical information,
> > your problem looks use incorrect "GTK+ logic" and not
> > like gtk2hs problem.
> >
> > BTW, please upgrade to gtk2hs-0.11.0, it fix many bugs and easier to
> > install (cabal install gtk2hs-buildtools gtk)
> >
> > Cheers,
> >
> >   -- Andy
>
> Hi Andy,
>
> I've managed to obtain ~500 lines code which can reproduce the problem.
> Playing with it I've figured out that problem exists only AFTER one of the
> entries becomes editable. Also what's interesting segfault happens on this
> entry mostly. I.e. on this one it happens always and it's difficult
> (although possible) to get segfault being focused on an other entry.
>
> Gtk+ version on my Windows I'll check tomorrow only, on Linux I've got
> 2.16.1.
>
> Bartek

And with attachement.
Best,
Bartek


>
> > > On Thursday 15 July 2010 07:23:01 Andy Stewart wrote:
> > >> Hi Bartosz,
> > >>
> > >> Can you give me a minimum program for test?
> > >> If it's a problem of gtk2hs, i will fix it.
> > >>
> > >> Thanks,
> > >>
> > >>   -- Andy
> > >>
> > >> Bartosz Wójcik <ba...@su...> writes:
> > >> > Hi,
> > >> >
> > >> > I have following problem I cannot fix.
> > >> > In the notebook there are some packed widgets: comboBoxes, entries
> > >> > and checkBoxes. When focus is located on any of the entries,
> > >> > pressing caps-lock and num-lock causes following warning and
> > >> > segfault.
> > >> >
> > >> > (ElcaGUI:24900): GLib-GObject-WARNING **: instance of invalid non-
> > >> > instantiatable type `(null)'
> > >> > Segmentation fault
> > >> >
> > >> > The number in parenthesis is of course each time different.
> > >> > Alt, Ctrl, home, PF-keys etc. don't cause any warning.
> > >> >
> > >> > Other widgets behave correct.
> > >> > To the same notebook there is attached another page, static one,
> > >> > with scrolledWindow and one label packed only. Pressed caps-lock or
> > >> > num-lock there causes as well:
> > >> >
> > >> > (ElcaGUI:26033): GLib-GObject-CRITICAL **:
> > >> > g_type_instance_get_private: assertion `instance != NULL &&
> > >> > instance->g_class != NULL' failed
> > >> >
> > >> > or
> > >> >
> > >> > (ElcaGUI:26387): GLib-GObject-WARNING **: attempt to retrieve
> > >> > private data for invalid type 'GtkEntry'
> > >> >
> > >> > Last one is strange since there is no entry widget on this page.
> > >> >
> > >> > This problem exists on my Linux OS (gtk2hs version 0.10.0). The same
> > >> > program runs on Windows (gtk2hs version 0.10.1) without  such
> > >> > behaviour.
> > >> >
> > >> > Therefore I assume there must be something either gtk2hs or OS
> > >> > specific. Any help is welcome.
> > >> >
> > >> > Best regards,
> > >> > Bartek