Re: GtkTreeView data
- From: Gabriel de Perthuis <Gabriel de-Perthuis laPoste net>
- To: Kris Marsh <moogman gmail com>
- Cc: gtk-app-devel-list gnome org
- Subject: Re: GtkTreeView data
- Date: Thu, 14 Apr 2005 21:17:35 +0200
Le jeudi 14 avril 2005 Ã 18:23 +0100, Kris Marsh a Ãcrit :
Hi,
I'm trying to attach extra information to each row in a list, and then
retrieve it later on from a row on
a double click (row_activated) event.
Basically, i've tried:
g_object_set_data(G_OBJECT(&iter_child), "my_info",
GUINT_TO_POINTER(some_info));
Upon inserting an item into the list and then tried to retrieve it in my
callback, but it crashes on insert.
1) What should I be trying to link my extra data to? (I assumed the iter
that comes out from
gtk_tree_store_append), but could be wrong.
You hook it as a new column of the model, for which you must give a
position and a type.
2) How can I do this. Eventually the data is going to be either a char array
or a pointer to a structure
Note that the data must be a GObject, in particular with respect to
memory management (refcounting).
The simple way to register your arbitrary data type is to write a clone
and a free routine, and register them along with a new boxed type.
See g_boxed_type_register_static:
http://developer.gnome.org/doc/API/2.0/gobject/gobject-Boxed-Types.html
Wrap this up in a get_my_type routine that has a static variable and
does the actual call only once, and use the routine when registering the
extra model column.
(that's a problem I had some time ago on this list, and it didn't work
out immediately)
[
Date Prev][
Date Next] [
Thread Prev][
Thread Next]
[
Thread Index]
[
Date Index]
[
Author Index]