Grob *number = unsmob_grob (tuplets[i]->get_object ("tuplet-number"));
if (number)
points.push_back (Offset (number->extent (commonx, X_AXIS).center () - x0,
Grob *number = unsmob_grob (tuplets[i]->get_object ("tuplet-number"));
if (number)
points.push_back (Offset (number->extent (commonx, X_AXIS).center () - x0,