Merge branch 'master' into lilypond/translation

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

diff --git a/lily/include/beam.hh b/lily/include/beam.hh
index 746d7e14581f024b8d1367932aae200470d8fa70..f99fbf8028e2ac3cb0f428dbb3394a9156a927c3 100644 (file)
--- a/lily/include/beam.hh
+++ b/lily/include/beam.hh
@@ -1,80 +1,107 @@
 /*
-  beam.hh -- part of GNU LilyPond
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the LilyPond music typesetter
-
-  (c) 1996--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  Copyright (C) 1996--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
   Jan Nieuwenhuizen <janneke@gnu.org>
+
+  LilyPond is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  LilyPond is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #ifndef BEAM_HH
 #define BEAM_HH
 
+#include "grob-interface.hh"
+#include "std-vector.hh"
 #include "lily-proto.hh"
-#include "lily-guile.hh"
 #include "stem-info.hh"
 
+struct Beam_segment
+{
+  int vertical_count_;
+  Interval horizontal_;
+  Beam_segment ();
+};
+
+bool beam_segment_less (Beam_segment const &a, Beam_segment const &b);
+
+struct Beam_stem_segment
+{
+  Beam_stem_segment ();
+
+  Grob *stem_;
+  Real width_;
+  Real stem_x_;
+  int rank_;
+  vsize stem_index_;
+  bool gapped_;
+  Direction dir_;
+  int max_connect_;
+};
+
+bool operator <(Beam_stem_segment const &a, Beam_stem_segment const &b);
+
 class Beam
 {
 public:
-  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 int normal_stem_count (Grob *);
+  static Grob *first_normal_stem (Grob *);
+  static Grob *last_normal_stem (Grob *);
+  DECLARE_GROB_INTERFACE ();
   static void add_stem (Grob *, Grob *);
+  static bool is_cross_staff (Grob *);
   static bool is_knee (Grob *);
-  static void set_beaming (Grob *, Beaming_info_list *);
+  static void set_beaming (Grob *, Beaming_pattern const *);
   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 Real get_beam_thickness (Grob *me);
   static void connect_beams (Grob *me);
-  DECLARE_SCHEME_CALLBACK (space_function, (SCM, SCM));
+  static vector<Beam_segment> get_beam_segments (Grob *me_grob, Grob **common);
+  static Interval no_visible_stem_positions (Grob *me, Interval default_value);
+
+  DECLARE_SCHEME_CALLBACK (rest_collision_callback, (SCM element, SCM prev_off));
+  DECLARE_SCHEME_CALLBACK (pure_rest_collision_callback, (SCM element, SCM prev_off, SCM, SCM));
   DECLARE_SCHEME_CALLBACK (print, (SCM));
-  DECLARE_SCHEME_CALLBACK (before_line_breaking, (SCM));
-  DECLARE_SCHEME_CALLBACK (after_line_breaking, (SCM));
+  DECLARE_SCHEME_CALLBACK (calc_beaming, (SCM));
+  DECLARE_SCHEME_CALLBACK (calc_stem_shorten, (SCM));
+  DECLARE_SCHEME_CALLBACK (calc_direction, (SCM));
+  DECLARE_SCHEME_CALLBACK (calc_positions, (SCM));
+  DECLARE_SCHEME_CALLBACK (calc_least_squares_positions, (SCM, SCM));
+  DECLARE_SCHEME_CALLBACK (calc_normal_stems, (SCM));
+  DECLARE_SCHEME_CALLBACK (calc_concaveness, (SCM));
+  DECLARE_SCHEME_CALLBACK (set_stem_lengths, (SCM));
+  DECLARE_SCHEME_CALLBACK (calc_cross_staff, (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);
+  DECLARE_SCHEME_CALLBACK (shift_region_to_valid, (SCM, SCM));
+  DECLARE_SCHEME_CALLBACK (slope_damping, (SCM, SCM));
+  DECLARE_SCHEME_CALLBACK (quanting, (SCM, SCM));
 
   static int get_direction_beam_count (Grob *me, Direction d);
+
 private:
+  friend class Beam_scoring_problem;
+
   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 *);
+  static Real calc_stem_y (Grob *, Grob *s, Grob **c,
+                           Real, Real, Direction,
+                           Drul_array<Real> pos, bool french);
 };
 
-const int REGION_SIZE = 2;
-
-#ifndef NDEBUG
-#define DEBUG_QUANTING 1
-#endif
-
 #endif /* BEAM_HH */