Re: TreeModelFilter as LIST_ONLY

[José Alburquerque <jaalburquerque cox net>]

Jorge Cardona said the following:
> 2008/10/22 José Alburquerque <jaalburquerque cox net>:
>   
> > Jorge Cardona said the following:
> >     
> > > Hi, recently i ask something about to set the model of a iconview from
> > > a treemodelfilter with a filter and a path that only has 1 depth
> > > children, so it look like a list, but iconview complain for the
> > > LIST_ONLY flag, how can i create a new treemodelfilter class but that
> > > return a LIST_ONLY flag and define a filter that only show the
> > > children with no childrens.
> > >
> > > I need some help on this, i was trying to solve it myself, but i need
> > > more experience on c++ and gtk.
> > >
> > >
> > >       
> > The problem is that a Gtk::TreeModelFilter only "wraps over" the actual
> > Gtk::TreeModel, but it is still only the underlying Gtk::TreeModel
> > underneath.  Getting the flags of the Gtk::TreeModelFilter is equivalent to
> > getting the flags of the underlying Gtk::TreeModel.
> >
> > A Gtk::TreeStore's rows can have children and is therefore not usable by a
> > Gtk::IconView.  You really need to use a Gtk::ListStore with the
> > Gtk::IconView.
> >
> >     
>
> Yes, I know that, but i don't want to duplicate data, and i need to
> store all my data on an treestore, it should be easy to create a
> filter that let show only the elements with no children, with that a
> treemodelfilter works like it has a liststore as model, but it is also
> needed the LIST_ONLY flag for the iconview.
>
> I was thinking in create a new class that inherits from a
> Gtk::TreeModelFilter, but i can't override the get_flags method

I see.  I'm not sure what your results would be and I wont tell you that 
I know exactly what you need to do to achieve this, but I think you 
should look into Gtk::TreeModel from which Gtk::TreeModelFilter derives 
and see if you can achieve what your trying to do that way.

--
José Alburquerque