- PCol *left_col_l_, *right_col_l_;
-
- /* *************** */
- NAME_MEMBERS(Spanner);
- virtual Spanner* spanner() { return this; }
- Spanner();
- bool broken_b() const;
- Spanner* find_broken_piece(Line_of_score*)const;
+ DECLARE_SCHEME_CALLBACK (set_spacing_rods, (SCM));
+
+ Link_array<Spanner> broken_intos_;
+
+ int get_break_index () const;
+
+ // todo: move to somewhere else.
+ Real get_broken_left_end_align () const;
+ void substitute_one_mutable_property (SCM sym, SCM val);
+ bool fast_substitute_grob_array (SCM sym, Grob_array *);
+
+ // TODO: make virtual and do this for Items as well.
+ Interval_t<int> spanned_rank_iv ();
+ void set_bound (Direction d, Grob *);
+ Item *get_bound (Direction d) const;
+
+ Spanner (SCM, Object_key const *);
+ Spanner (Spanner const &, int copy_count);
+ bool is_broken () const;
+ void do_break ();
+ Real spanner_length () const;
+
+ static int compare (Spanner *const &, Spanner *const &);
+ virtual Grob *find_broken_piece (System *) const;
+ virtual void derived_mark () const;
+ static bool has_interface (Grob *);
+ virtual System *get_system () const;
+