+/*
+ Check if COL fills the whole measure.
+ */
+bool
+Spacing_spanner::fills_measure (Grob *me, Item *left, Item *col)
+{
+ System *sys = get_root_system (me);
+ Item *next = sys->column (col->get_column()->get_rank () + 1);
+ if (!next)
+ return false;
+
+ if (Paper_column::is_musical (next)
+ || Paper_column::is_musical (left)
+ || !Paper_column::is_musical (col)
+ || !Paper_column::is_used (next))
+ return false;
+
+ Moment dt =
+ Paper_column::when_mom (next) - Paper_column::when_mom (col);
+
+ Moment *len = unsmob_moment (left->get_property ("measure-length"));
+ if (!len)
+ return false;
+
+ /*
+ Don't check for exact measure length, since ending measures are
+ often shortened due to pickups.
+ */
+ if (dt.main_part_ > len->main_part_ / Rational (2)
+ && (next->is_broken ()
+ || next->break_status_dir ()))
+ return true;
+
+ return false;
+}