/*
spanner.hh -- part of GNU LilyPond
- (c) 1996--2002 Han-Wen Nienhuys
+ (c) 1996--2007 Han-Wen Nienhuys
*/
#ifndef SPANNER_HH
#define SPANNER_HH
-#include "lily-proto.hh"
#include "grob.hh"
-#include "drul-array.hh"
#include "rod.hh"
/** A symbol which is attached between two columns. A spanner is a
- symbol which spans across several columns, so its final appearance
- can only be calculated after the breaking problem is solved.
+ symbol which spans across several columns, so its final appearance
+ can only be calculated after the breaking problem is solved.
- Examples
+ Examples
- * (de)crescendo
- * slur
- * beam
- * bracket
+ * (de)crescendo
+ * slur
+ * beam
+ * bracket
- Spanner should know about the items which it should consider:
- e.g. slurs should be steep enough to "enclose" all those items. This
- is absolutely necessary for beams, since they have to adjust the
- length of stems of notes they encompass.
+ Spanner should know about the items which it should consider:
+ e.g. slurs should be steep enough to "enclose" all those items. This
+ is absolutely necessary for beams, since they have to adjust the
+ length of stems of notes they encompass.
+*/
+class Spanner : public Grob
+{
+ Drul_array<Item *> spanned_drul_;
+ vsize break_index_;
- */
-class Spanner : public Grob {
- Drul_array<Item*> spanned_drul_;
+ DECLARE_CLASSNAME(Spanner);
public:
- DECLARE_SCHEME_CALLBACK (set_spacing_rods, (SCM ));
-
- Link_array<Spanner> broken_into_l_arr_;
+ DECLARE_SCHEME_CALLBACK (set_spacing_rods, (SCM));
+ DECLARE_SCHEME_CALLBACK (bounds_width, (SCM));
+
+ vector<Spanner*> broken_intos_;
+ vsize get_break_index () const;
+ Spanner *broken_neighbor (Direction d) const;
+
// todo: move to somewhere else.
Real get_broken_left_end_align () const;
-
- // TODO: make virtual and do this for Items as well.
- Interval_t<int> spanned_rank_iv ();
- void set_bound (Direction d, Grob*);
+ void substitute_one_mutable_property (SCM sym, SCM val);
+ bool fast_substitute_grob_array (SCM sym, Grob_array *);
+
+ virtual Interval_t<int> spanned_rank_iv ();
+ void set_bound (Direction d, Grob *);
Item *get_bound (Direction d) const;
-
+
Spanner (SCM);
Spanner (Spanner const &);
- bool broken_b () const;
+ 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 SCM do_derived_mark ();
- static bool has_interface (Grob*);
+ static int compare (Spanner *const &, Spanner *const &);
+ static bool less (Spanner *const &, Spanner *const &);
+ virtual Grob *find_broken_piece (System *) const;
+ virtual void derived_mark () const;
+ DECLARE_GROB_INTERFACE();
+ virtual System *get_system () const;
+
protected:
void set_my_columns ();
-
- VIRTUAL_COPY_CONS (Grob);
+ virtual Grob *clone () const;
virtual void do_break_processing ();
- virtual System*line_l () const;
};
+void add_bound_item (Spanner *, Grob *);
-void add_bound_item (Spanner*, Grob*);
-
-
+bool spanner_less (Spanner *s1, Spanner *s2);
+int broken_spanner_index (Spanner const *sp);
#endif