release: 1.3.141

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

diff --git a/lily/include/beam.hh b/lily/include/beam.hh
index c1b1b971b9dcae1f58838d753343d92a1531acf0..082ceb630e48244f4c5c5b656217c47a4be9c72f 100644 (file)
--- a/lily/include/beam.hh
+++ b/lily/include/beam.hh
@@ -1,51 +1,57 @@
 /*
   beam.hh -- part of GNU LilyPond
 
-  (c) 1996,97 Han-Wen Nienhuys
+  (c) 1996--2001 Han-Wen Nienhuys
 */
 
 #ifndef BEAM_HH
 #define BEAM_HH
+
 #include "lily-proto.hh"
-#include "directional-spanner.hh"
-#include "plist.hh"
+#include "lily-guile.hh"
+
+
 
-/** a beam connects multiple stems Beam adjusts the stems its owns to
-  make sure that they reach the beam and that point in the correct
-  direction */
-class Beam:  public Directional_spanner {
+class Beam
+{
 public:
-  Link_array<Stem> stems;
-  /// the slope of the beam in posns / point (dimension)   
-  Real slope;
-
-  /// position of leftmost end of beam  
-  Real left_pos;
-   
-
-  /* *************** */
-  DECLARE_MY_RUNTIME_TYPEINFO;
-  Beam();
-  void add (Stem*);
-
-  void set_grouping (Rhythmic_grouping def, Rhythmic_grouping current);
-  void set_stemlens();
-  SCORE_ELEM_CLONE(Beam);
-
-protected:
-  Interval do_width() const;    
-  Offset center() const;
-  void set_default_dir();
-  virtual void do_pre_processing();
-  virtual void do_post_processing();
-  virtual void do_substitute_dependent (Score_elem*, Score_elem*);
-
-  virtual void do_print() const;
-
-  virtual Molecule stem_beams (Stem *here, Stem *next, Stem *prev) const;
-  virtual void solve_slope();
-  virtual Molecule*brew_molecule_p() const;
+  static int visible_stem_count (Grob*);
+  static Item* first_visible_stem (Grob*);
+  static Item* last_visible_stem (Grob*);
+  static bool has_interface (Grob*);
+  DECLARE_SCHEME_CALLBACK (rest_collision_callback, (SCM element, SCM axis));
+  Beam (SCM);
+  static void add_stem (Grob*,Grob*);
+  static void set_beaming (Grob*,Beaming_info_list *);
+  static void set_stemlens (Grob*);
+  static int get_multiplicity (Grob*me);
+  DECLARE_SCHEME_CALLBACK (brew_molecule, (SCM ));
+  DECLARE_SCHEME_CALLBACK (before_line_breaking, (SCM ));
+  DECLARE_SCHEME_CALLBACK (after_line_breaking, (SCM ));
+
+  /*
+    y-dy callbacks
+   */
+  DECLARE_SCHEME_CALLBACK (least_squares, (SCM));
+  DECLARE_SCHEME_CALLBACK (cancel_suspect_slope, (SCM));
+  DECLARE_SCHEME_CALLBACK (slope_damping, (SCM));
+  DECLARE_SCHEME_CALLBACK (quantise_dy, (SCM));
+  DECLARE_SCHEME_CALLBACK (user_override, (SCM));
+  DECLARE_SCHEME_CALLBACK (do_quantise_y, (SCM));
+
+  static Molecule stem_beams (Grob*,Item *here, Item *next, Item *prev);
+
+private:
+  static Direction get_default_dir (Grob*);
+  static void set_stem_directions (Grob*);
+  static void consider_auto_knees (Grob*);
+  static void set_stem_shorten (Grob*);
+  static Real calc_stem_y_f (Grob*, Item* s, Real y, Real dy);
+  static Real check_stem_length_f (Grob*, Real y, Real dy);
+  static void set_stem_lengths (Grob*);
+  static Real quantise_y_f (Grob*, Real y, Real dy, int quant_dir);
+  static int forced_stem_count (Grob*);
 };
 
-#endif // BEAM_HH
+#endif /* BEAM_HH */