/*
spanner.hh -- part of GNU LilyPond
- (c) 1996--2000 Han-Wen Nienhuys
+ (c) 1996--2007 Han-Wen Nienhuys
*/
#ifndef SPANNER_HH
#define SPANNER_HH
-#include "lily-proto.hh"
-#include "score-element.hh"
-#include "drul-array.hh"
+#include "grob.hh"
#include "rod.hh"
-
-class Axis_group_spanner;
/** 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
- \begin{itemize}
- \item (de)crescendo
- \item slur
- \item beam
- \item bracket
- \end{itemize}
-
+ * (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 virtual Score_element {
- Drul_array<Item*> spanned_drul_;
+ DECLARE_CLASSNAME(Spanner);
public:
- Link_array<Spanner> broken_into_l_arr_;
- void set_bound (Direction d, Item*);
- Item *get_bound (Direction d) const;
+ 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;
- Spanner ();
+ // 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 *);
+
+ 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 &);
+ 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;
- static int compare (Spanner * const &,Spanner * const &);
- virtual Array<Rod> get_rods () const;
- virtual Array<Spring> get_springs () const;
- virtual Score_element* find_broken_piece (Line_of_score*) const;
protected:
void set_my_columns ();
- VIRTUAL_COPY_CONS(Score_element);
- Real get_broken_left_end_align () const;
-
- virtual void do_space_processing ();
+ virtual Grob *clone () const;
virtual void do_break_processing ();
- Real spanner_length () const;
- virtual Line_of_score*line_l () const;
};
+
+void add_bound_item (Spanner *, Grob *);
+
+bool spanner_less (Spanner *s1, Spanner *s2);
+int broken_spanner_index (Spanner const *sp);
#endif