* lily/beam-quanting.cc: cleanup, separate counts for left and

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

diff --git a/lily/include/beam.hh b/lily/include/beam.hh
index d1e28ee4f683b36674f128a5fa15b7ba59812a68..e7594f5a4d745032e12d00b608d26a5c09eb6e41 100644 (file)
--- a/lily/include/beam.hh
+++ b/lily/include/beam.hh
@@ -1,52 +1,80 @@
 /*
   beam.hh -- part of GNU LilyPond
 
-  (c) 1996,97 Han-Wen Nienhuys
+  source file of the LilyPond music typesetter
+
+  (c) 1996--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  Jan Nieuwenhuizen <janneke@gnu.org>
 */
 
 #ifndef BEAM_HH
 #define BEAM_HH
+
 #include "lily-proto.hh"
-#include "directional-spanner.hh"
-#include "plist.hh"
+#include "lily-guile.hh"
+#include "stem-info.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;
-   
-
-    /* *************** */
-    NAME_MEMBERS();
-    Beam();
-    void add(Stem*);
-    
-
-    void set_grouping(Rhythmic_grouping def, Rhythmic_grouping current);
-    void set_stemlens();
-    SPANNER_CLONE(Beam)
-protected:
-    virtual Interval do_width()const;    
-    virtual Offset center() const;
-    virtual void set_default_dir();
-    virtual void do_pre_processing();
-    virtual void do_post_processing();
-    virtual void do_substitute_dependency(Score_elem*, Score_elem*);
-
-    virtual void do_print() const;
+  static int visible_stem_count (Grob*);
+  static Grob* first_visible_stem (Grob*);
+  static Grob* 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 bool is_knee (Grob*);
+  static void set_beaming (Grob*,Beaming_info_list *);
+  static void set_stemlens (Grob*);
+  static int get_beam_count (Grob*me);
+  static void position_beam (Grob* me);
+  static Real get_beam_translation (Grob*me);
+  static Real get_thickness (Grob*me);
+
+  static void connect_beams (Grob*me);
+  DECLARE_SCHEME_CALLBACK (space_function, (SCM, SCM));
+  DECLARE_SCHEME_CALLBACK (print, (SCM));
+  DECLARE_SCHEME_CALLBACK (before_line_breaking, (SCM));
+  DECLARE_SCHEME_CALLBACK (after_line_breaking, (SCM));
+  
+  /* position callbacks */
+  DECLARE_SCHEME_CALLBACK (least_squares, (SCM));
+  DECLARE_SCHEME_CALLBACK (check_concave, (SCM));
+  DECLARE_SCHEME_CALLBACK (slope_damping, (SCM));
+  DECLARE_SCHEME_CALLBACK (shift_region_to_valid, (SCM));  
+  DECLARE_SCHEME_CALLBACK (quanting, (SCM));
+  static Real score_slopes_dy (Real, Real, Real, Real, Real, bool);
 
+  static Real score_stem_lengths (Link_array<Grob> const &stems,
+                                 Array<Stem_info> const &stem_infos,
+                                 Array<Real> const &base_stem_ys,
+                                 Array<Real> const &stem_xs,
+                                 Real xl, Real xr, 
+                                 bool knee, 
+                                 Real yl, Real yr);
+  static Real score_forbidden_quants (Real, Real,
+                                     Real, Real, Real, Real,
+                                     Drul_array<int>, Direction, Direction);
+  
+
+  static int get_direction_beam_count (Grob *me, Direction d);
 private:
-    Molecule stem_beams(Stem *here, Stem *next, Stem *prev)const;
-    void solve_slope();
-    Molecule*brew_molecule_p()const;
+  static Direction get_default_dir (Grob*);
+  static void set_stem_directions (Grob*, Direction );
+  static void consider_auto_knees (Grob*);
+  static void set_stem_shorten (Grob*);
+  static Real calc_stem_y (Grob*, Grob* s, Grob**c,
+                          Real, Real,
+                          Drul_array<Real> pos, bool french);
+  static void set_stem_lengths (Grob*);
+  static int forced_stem_count (Grob*);
 };
 
-#endif // BEAM_HH
+const int REGION_SIZE = 2;
+
+#define DEBUG_QUANTING 1
+
+#endif /* BEAM_HH */