Re: Catching the row deleted from a GtkTreeModel implementation

["Vivien Malerba" <vmalerba gmail com>]

On 2/9/07, Suma H.S <sumahs tataelxsi co in> wrote:
> how r u deleting the row?
> It should be either through some key-press or mouse-click, in either case u
> must select the row before selecting.
> So...If it is through a key-press, catch the key-press signal and if it is
> through a mouse-click,
> catch mouse-click signal and access the selected row. Now do all the
> updations u want and then delete the row from the model.
>
>
>
> -----Original Message-----
> From: gtk-app-devel-list-bounces gnome org
> [mailto:gtk-app-devel-list-bounces gnome org]On Behalf Of Fontana Nicola
> Sent: Friday, February 09, 2007 2:36 AM
> To: gtk-app-devel-list gnome org
> Subject: Catching the row deleted from a GtkTreeModel implementation
>
>
> I'm keeping some summary fields of a GtkListStore and I need to update them
> on
> every model change. The problem is while catching the "row-deleted" signal
> the row is yet deleted, so I can't access the row content to update my
> summary fields.
>
> How can I do it?

I would suggest a different approach: add your own column to the
GtkListStore which stores your information summary as a GObject (so
you know when that object is destroyed).

If you can't add a column to the GtkListStore, then I suggest creating
another GtkTreeModel implementation which "proxies" the GtkListStore
and adds a new column (in this case you'll have to write a method to
delete data so you'll know when it's deleted) - see the
GtkTreeModelFilter implementation for example.

Regards,

Vivien