Re: TreeView: Multiple selection inefficient?

[Matthias Kaeppler <nospam digitalraid com>]

Murray Cumming wrote:
> On Mon, 2005-04-11 at 16:31 +0200, Matthias Kaeppler wrote:
>
> > Murray Cumming wrote:
> >
> > > On Mon, 2005-04-11 at 12:47 +0200, Matthias Kaeppler wrote:
> > >
> > >
> > > > Murray Cumming wrote:
> > > >
> > > >
> > > >
> > > > > You don't have to call foreach() on each row. But if you really want to
> > > > > examine each selection whenever the selection changes, what's the
> > > > > alternative?
> > > > >
> > > > > Hopefully you more often want to just know the first and last selected
> > > > > rows, or if anything is selected at all. Then you wouldn't have to call
> > > > > foreach() on them all.
> > > >
> > > > That's correct, but how can I achieve this? It would be enough for me to 
> > > > only know the first and last row which is among the selection. Maybe 
> > > > even only the last.
> > >
> > >
> > > get_selected_rows().
> >
> > This returns a Glib::ListHandle. Although it is claimed that these 
> > behave like an STL container, I can neither decrement an iterator nor 
> > use reverse iterators. How am I supposed to get the last element from 
> > this list?
>
>
> Please see the Basics chapter in the gtkmm book and/or the FAQ. It is an
> intermediate type.

Yes, sorry, see post below.
Not relevant anymore anyway since I have figured out that the problem 
wasn't on my side. The internal Gtk+ signal handlers already cause the 
slowdown, see post at the very bottom.

--
Matthias Kaeppler