Sun Feb 17 00:13:06 2002  Kristian Rietveld  <kris@gtk.org>

        This commit lands the 'dy patch'.

        * gtk/gtktreeview.c (validate_rows_handler): update top_row or dy,
        (gtk_tree_view_top_row_to_dy): new function,
        (gtk_tree_view_row_changed): update top_row or dy,
        (gtk_tree_view_rows_reordered): update top_row