Re: Having trouble with TreeView, GNOME 3.2 (GTK 3.2)

["Jasper St. Pierre" <jstpierre mecheye net>]

I doubt gjs from GNOME 3.2 works properly with TreeModel and
everything. I wrote a lot of code for GNOME 3.4 for gjs for it.

On Fri, Aug 24, 2012 at 2:05 AM, Amy C <mathematical coffee gmail com> wrote:
> Hi all,
>
> I'm trying to append a value to my TreeView/ListStore, but keep
> getting a segmentation fault.
>
> The segmentation fault occurs when I try to call ListStore.append(),
> and using gdb the problem is:
>
> 0x445fc373 in g_type_check_is_value_type () from /lib/libgobject-2.0.so.0
>
> This snippet is sufficient to reproduce the problem (run in
> gjs-console on GNOME 3.2):
>
> const Gtk = imports.gi.Gtk;
>
> let store = new Gtk.ListStore();
> store.set_column_types([16]); // <-- looked up G_TYPE_STRING: cannot
> find this anywhere (it is not exported in imports.gi.GObject on GNOME
> 3.2)
>
> // try add the first row 'asdf'
> let iter = store.append();
> store.set(iter, [0], ['asdf']); // <-- segfault here
>
> Now I suspect the problem is somehow to do with me specifying 16 as
> the column type (I want G_TYPE_STRING), but according to the GObject
> docs[0] G_TYPE_STRING is G_TYPE_MAKE_FUNDAMENTAL(16), and when I tried
>
> const GObject = imports.gi.GObject;
> GObject.type_fundamental(16); // <-- gives 16
> GObject.type_check_type_is_value_type(16); // <-- gives TRUE
>
> If I instead try:
>
> store.set_value(iter, 0, 'asdf');
>
> I get "Unable to convert from gchararray to guchar".
>
> Can anyone shed some light on this?
>
> [0]: http://developer.gnome.org/gobject/stable/gobject-Type-Information.html#G-TYPE-STRING:CAPS
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-- 
  Jasper