Re: how to browse values from a GtkListStore ?

[Carlos Pereira <jose carlos pereira ist utl pt>]

Let's say you would like to retrieve some information for the selected 
row, not just the string name. You could add a (hidden) column to your 
store, with that information, and then get it back with 
gtk_tree_model_get. Let's say you would like to have a pointer to a 
function, for each of your rows, you would have something like this:

treeview = gtk_tree_view_new ();
...
renderer = gtk_cell_renderer_text_new ();
column = gtk_tree_view_column_new_with_attributes ("My_Title", renderer, 
"text", 0, NULL);
gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);

/* treeview has 1 column, list_store has 2 columns */
store = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_POINTER);
...
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter, 0, label0, 1, function, -1);
...
gtk_tree_view_set_model (treeview, store);
g_object_unref (store);

}
and then your callback would look like this:

void my_callback (GtkTreeView *treeview,
GtkTreePath *path, GtkTreeViewColumn *col, void *data)
{
model = gtk_tree_view_get_model (treeview);
if (gtk_tree_model_get_iter (model, &iter, path) == FALSE) return;

/* get and execute pointer to function */
gtk_tree_model_get (model, &iter, 1, &function, -1);
(* function) (data);
}

Carlos
> > To retrieve string from store, simply use
> > something like this:
> > ---- CODE ----
> > gchar *string;
> > gtk_tree_model_get( GTK_TREE_MODEL( store ), &iter, 0, &string, -1 );
> > /* Do something with string here */
> > g_free( string );
> > ---- CODE ----
> >     
>
> Works. Thanks for your help
>