Re: [gtkmm] Custom TreeStore Problems

[Bryan Forbes <mxpxfifws yahoo com>]

I think it's because we keep putting darco_list on the email replies.  Don't do that! :)

-Bryan


--- Silviu D Minut <minutsil cse msu edu> wrote:
> What's with the flood?
> 
> 
> On Thu, 9 Oct 2003, Christof Petig wrote:
> 
> > Murray Cumming Comneon com schrieb:
> > >>From: Christof Petig [mailto:christof petig-baender de]
> > >>Reason:
> > >>Porting our apps from gtk1 to gtk2 came to a halt when I
> > >>realized that
> > >>out use of TreeStore is many times slower than our custom Tree-like
> > >>class which I mapped to a CList (with reasonably well performance).
> > >
> > >
> > > There is quite a bit of discussion about TreeView performance on the
> > > gtk-list and I think you have found some. I would investigate
> > > - freezing/thawing the View while inserting large amounts of data.
> >
> > temporarily set_model(Glib::RefPtr<Gtk::TreeModel>()) made it 2 seconds
> > faster (out of 20). This is not the real problem.
> >
> > > - Not sorting while adding data.
> >
> > I never touched sorting ... I don't think I have to explicitely disable it.
> >
> > > - Rumored speed TreeView improvements in GTK+ 2.4.
> >
> > Difficult to tell (I listen gtk-devel closely) without gtkmm-2.4
> > available and 2.4 still changing API wise.
> >
> > I'd really like to roll my own TreeStore for now. But
> >
> > MyTreeModel()
> >       : Glib::ObjectBase(typeid(MyTreeModel)), Gtk::TreeModel()
> > { ...}
> >
> > didn't help me. Are there any more gotchas left?
> >
> > (owntreemodel:10416): glibmm-CRITICAL **: file interface.cc: line 53
> > (Glib::Interface::Interface(const Glib::Interface_Class&)): assertion
> > `gobject_ != 0' failed
> >
> > (owntreemodel:10416): GLib-GObject-CRITICAL **: file gobject.c: line
> > 1337 (g_object_unref): assertion `G_IS_OBJECT (object)' failed
> >
> > Yours
> >      Christof
> >
> > PS: I'll happily donate the ~150 line example to gtkmm/examples - once
> > it works ...
> >
> > _______________________________________________
> > gtkmm-list mailing list
> > gtkmm-list gnome org
> > http://mail.gnome.org/mailman/listinfo/gtkmm-list
> >
> 
> _______________________________________________
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