Re: Associating data with list store

["Paul Davis" <pjdavis engineering uiowa edu>]

On 6/2/07, Murray Cumming <murrayc murrayc com> wrote:
> On Sat, 2007-06-02 at 18:30 +0100, Robert Pearce wrote:
> > Hi Murray,
> >
> > On Sat, 02 Jun 2007 18:43:37 +0200 you wrote:
> > > On Sat, 2007-06-02 at 15:49 +0100, Robert Pearce wrote:
> > > > (process:27325): GLib-GObject-CRITICAL **: gtype.c:2242: initialization assertion failed, use IA__g_type_init() prior to this function
> > >
> > > This is probably due to a static instance somewhere in your code. It's
> > > generally impossible to ensure that glibmm/gtkmm is initialized before
> > > static instances, because the sequence of static instance initialization
> > > is not well defined.
> > >
> > I believe the only static instance of anything is the TreeModelColumnRecord-derived
> >       static DLF_ModelColumns DLF_Columns;
> > This is how the tutorial creates it, because it's needed purely as a reference point for doing stuff.
>
> The tutorial really shouldn't do that. Could you file a bug (or patch,
> please. The examples are in example/book/) with the exact details.
>
> >  Perhaps the tutorial is misleading, and I ought to create it as a member of the class that uses the TreeView?
> >

And for reference, this is indeed the way it should be done.

> > Anyway, I discovered I could avoid the problems by declaring my pointer as
> >    Gtk::TreeModelColumn<void*>            dataitem;
> >
> > This does mean that every time I use it I have to explicitly type-cast, which is ugly, but it seems to work.
> >
> > Thanks,
> > Rob
> > _______________________________________________
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> > gtkmm-list gnome org
> > http://mail.gnome.org/mailman/listinfo/gtkmm-list
> --
> Murray Cumming
> murrayc murrayc com
> www.murrayc.com
> www.openismus.com
>
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