Re: attaching a callback that updates combo_box entries

[Matthias Clasen <mclasen redhat com>]

On Thu, 2004-12-09 at 17:30 +0100, Stefan Kost wrote:
> hi hi,
>
> I've updated my code to use gtk_combox_box instead of option_menu. Yes, I've
> read the little migration guide in the gtk+ api docs.
>
> I must say that as soon as it gets a little dynamic gtk_combox_box_new_text() is
> fairly useless. No way to rename items, re-populate the list etc.

It is a common characteristic of convenience apis that they're
convenient but restricted...

> So I've chosen the hard way using an ListStore.
>
> In the old version I attached callbacks to each menu-items label, that where
> triggered by notify::id of the underlying object. mean when the objects id
> changed the menu changed as well.
> Now with the ComboBox I would need to change the text in the model, like
> gtk_list_store_set(store,&iter,0,new_id,-1);
>
> now the big question is what can I pass to user_data of the callback that I can
> use to get store and iter from. Don't tell me I should use a struct. In that
> case the design is broken - I wouldn't accept that in my code.
>
> Can't I get the label thats behind the cell?

No you can't, simply because there may be no label.