Re: [gtkmm] TreeView selection changes

[Christer Palm <palm nogui se>]

Roger Leigh wrote:
> Roger Leigh <roger whinlatter uklinux net> writes:
>
>
> > Depending on whether there is a selected row in the TreeView, I have
> > some [of the] buttons set insensitive.  In order to keep them in the
> > correct state, I attached a handler to the signal_changed() signal
> > of the Selection.  This works, but... when I call
> > Gtk::ListStore::clear() to clear the list, the Selection doesn't
> > emit a "changed" signal, even though its selection has been lost...
> > What is the best way to deal with this?
>
>
> I solved this my manually calling my Gtk::TreeSelection
> "signal_changed" callback after clearing the list.  Is the "changed"
> signal only emitted due to /user/ interaction with the TreeView?  If
> so, is there any way of detecting changes to the Selection due to
> changes in the underlying ListStore?

I think the TreeView _should_ emit a changed signal if the selection 
disappears as a result of a clear(). You should probably create a 
bugzilla report on this.