2003 -> 2004

[lilypond.git] / lily / include / spanner.hh

diff --git a/lily/include/spanner.hh b/lily/include/spanner.hh
index 0c7bf2a5f5b03eb89f324baa98d968e2cd30b257..40617f18e131b8fe1028f8a924488b701b7aaaf2 100644 (file)
--- a/lily/include/spanner.hh
+++ b/lily/include/spanner.hh
@@ -1,44 +1,27 @@
 /*
   spanner.hh -- part of GNU LilyPond
 
-  (c) 1996--1999 Han-Wen Nienhuys
+  (c) 1996--2004 Han-Wen Nienhuys
 */
 
 #ifndef SPANNER_HH
 #define SPANNER_HH
 
 #include "lily-proto.hh"
-#include "score-element.hh"
+#include "grob.hh"
 #include "drul-array.hh"
 #include "rod.hh"
 
-struct Breaking_information
-{
-  Line_of_score *line_l_;
-  Spanner * broken_spanner_l_;
-  Drul_array<Item*> bounds_;
-  Breaking_information ()
-    {
-      line_l_ =0;
-      broken_spanner_l_ =0;
-      bounds_[LEFT] = bounds_[RIGHT] =0;
-    }
-};
-
-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.
 
   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
@@ -46,36 +29,45 @@ class Axis_group_spanner;
   length of stems of notes they encompass.
 
   */
-class Spanner : public virtual Score_element {
-public:
+class Spanner : public  Grob {
   Drul_array<Item*> spanned_drul_;
-  void set_bounds (Direction d, Item*);
+  int break_index_;
+  
+public:
+  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_fubstitute_grob_list (SCM sym, SCM grob_list);
+  // 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 ();
+  Spanner (SCM);
   Spanner (Spanner const &);
   bool broken_b () const;
-  virtual Array<Rod> get_rods () const;
-  virtual Spanner* find_broken_piece (Line_of_score*) 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 () const;
+  static bool has_interface (Grob*);
+  virtual System *get_system () const;
 protected:
   void set_my_columns ();
-  VIRTUAL_COPY_CONS(Score_element);
-
-  /**
-    this is virtual; for instance, Line_of_score overrides it.
-    */
-  virtual void break_into_pieces ();
-
-  Array<Breaking_information> broken_info_;
-  friend Axis_group_spanner; // UGH
 
-  Spanner * unbroken_original_l_;
-
-  virtual void output_processing ();
-  virtual void do_space_processing ();
+  VIRTUAL_COPY_CONS (Grob);
   virtual void do_break_processing ();
-  virtual Interval do_width () const;
-  virtual void do_print () const;
-  virtual Line_of_score*line_l () const;
 };
+
+void add_bound_item (Spanner*, Grob*);
+///DECLARE_UNSMOB (Spanner, spanner);
+
+int broken_spanner_index (Spanner * sp);
 #endif