Re: a TreeModel that's sortable and filterable?

[José Alburquerque <jaalburquerque cox net>]

Juan A. Moreno wrote:
> 2008/6/16 José Alburquerque <jaalburquerque cox net 
> <mailto:jaalburquerque cox net>>:
>
>
>     That's really strange.  Just out of curiosity,  I  modified  the
>     ListStore example found here
>     <http://www.gtkmm.org/docs/gtkmm-2.4/examples/book/treeview/list/>
>     with the attached patch to sort its rows and use a TreeModelFilter
>     with the ListStore as its child to exclude the row with id 4 and
>     it works fine.  Would you be able to do something similar?
>
>
> The patched example work fine, but try to add this two lines and then 
> make click in the id column:
>  
>   for(guint i = 0; i < 2; i++)
>   {
>     Gtk::TreeView::Column* pColumn = m_TreeView.get_column(i);
>     pColumn->set_reorderable();
>   }
>
>  +  pColumn = m_TreeView.get_column(0);
>  +  pColumn->set_sort_column(m_Columns.m_col_id);
I see.  The problem arises from the fact that the functions in gtk+ that 
produce the warnings expect to work with a GtkTreeSortable (which 
GtkListStore implements but GtkModelFilter does not) when in fact they 
get a GtkTreeModelFilter which does not directly implement 
GtkTreeSortble thus the warnings.  Now I understand.  Thanks for 
clearing this up.

--
José Alburquerque
jaalburquerque cox net