Pointer_group_interface::add_grob (lv_column_, ly_symbol2scm ("ties"),
lv_tie);
if (is_direction (unsmob_stream_event (cause)->get_property ("direction")))
{
Direction d = to_dir (unsmob_stream_event (cause)->get_property ("direction"));
Pointer_group_interface::add_grob (lv_column_, ly_symbol2scm ("ties"),
lv_tie);
if (is_direction (unsmob_stream_event (cause)->get_property ("direction")))
{
Direction d = to_dir (unsmob_stream_event (cause)->get_property ("direction"));