Re: [gtkmm] TreeView selection question

[Carl Nygard <cjnygard fast net>]

On Wed, 2004-09-29 at 03:57, Marco Scholten wrote:
> ----- Original Message ----- 
> From: "Carl Nygard" <cjnygard fast net>
> To: <gtkmm-list gnome org>
> Sent: Wednesday, September 29, 2004 5:05 AM
> Subject: [gtkmm] TreeView selection question
> 
> 
> >
> > I have a treeview with two columns, first is a simple check button,
> > second column is a label.
> >
> > I'd like to be able to toggle the check buttons in various rows without
> > actually selecting the row.
> >
> > But of course, I don't know how to accomplish that.  Clues???
> >
> > Regards,
> > Carl
> >
> > _______________________________________________
> > gtkmm-list mailing list
> > gtkmm-list gnome org
> > http://mail.gnome.org/mailman/listinfo/gtkmm-list
> >
> 
> Maybe this will help, taken form
> http://www.gtkmm.org/gtkmm2/docs/tutorial/html/ch08s04.html
> 
> Preventing row selection
> 
> Maybe the user should not be able to select every item in your list or tree.
> For instance, in the gtk-demo, you can select a demo to see the source code,
> but it doesn't make any sense to select a demo category.
> 
> To control which rows can be selected, use the set_select_function() method,
> providing a SigC::Slot callback. For instance:
> 
> m_refTreeSelection->set_select_function( SigC::slot(*this,
> &DemoWindow::select_function) );
> 
> and then
> 
> bool DemoWindow::select_function(const Glib::RefPtr<Gtk::TreeModel>& model,
>                                  const Gtk::TreeModel::Path& path, bool)
> {
>   const Gtk::TreeModel::iterator iter = model->get_iter(path);
>   return iter->children().empty(); // only allow leaf nodes to be selected
> }

That's fine, but how do I decide to ignore it?  The problem is that I
only want to ignore the selection if the checkbox was toggled, but I
don't know that information.  Unless the Path tells me which cell was
chosen?