sub updateprogress {
    my ($self) = @_;

    return unless $self->progressbar;
    my @frac = ($self->recordi, $self->recordcount);

    my $frac = frac(@frac);

    $self->progressbar->set_fraction($frac->num);

    $self->progressbar->set_text( sprintf '%d / %d', @frac);

    use Gtk2;
    while (Gtk2->events_pending) {
      Gtk2->main_iteration;
    }
    Gtk2::Gdk->flush;
}