/*
- beam.hh -- part of GNU LilyPond
+ This file is part of LilyPond, the GNU music typesetter.
- (c) 1996--2000 Han-Wen Nienhuys
+ Copyright (C) 1996--2015 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 ();
+};
-/** a beam connects multiple stems.
+bool beam_segment_less (Beam_segment const &a, Beam_segment const &b);
- Beam adjusts the stems its owns to make sure that they reach the
- beam and that point in the correct direction (urg?)
+struct Beam_stem_segment
+{
+ Beam_stem_segment ();
- elt_properties:
-
- y-position -- real (position of left edge)
+ Grob *stem_;
+ Real width_;
+ Real stem_x_;
+ int rank_;
+ vsize stem_index_;
+ bool gapped_;
+ Direction dir_;
+ int max_connect_;
+};
- height -- real (dy)
+bool operator <(Beam_stem_segment const &a, Beam_stem_segment const &b);
- damping -- amount of beam slope damping. (int)
- should beam slope be damped? 0: no, 1: yes, 100000: horizontal beams
-*/
class Beam
{
public:
- static int visible_stem_count (Score_element*);
- static Item* first_visible_stem (Score_element*);
- static Item* last_visible_stem (Score_element*);
- static bool has_interface (Score_element*);
- static void set_interface (Score_element*);
- static Real rest_collision_callback (Score_element *,Axis);
- Beam (SCM);
- static void add_stem (Score_element*,Score_element*);
- static void set_beaming (Score_element*,Beaming_info_list *);
- static void set_stemlens (Score_element*);
- static int get_multiplicity (Score_element*me);
- static SCM brew_molecule (SCM);
- static SCM before_line_breaking (SCM);
- static SCM after_line_breaking (SCM);
- static Molecule stem_beams (Score_element*,Item *here, Item *next, Item *prev);
+ static int normal_stem_count (Grob *);
+ static Grob *first_normal_stem (Grob *);
+ static Grob *last_normal_stem (Grob *);
+ static void add_stem (Grob *, Grob *);
+ static bool is_cross_staff (Grob *);
+ static bool is_knee (Grob *);
+ static void set_beaming (Grob *, Beaming_pattern const *);
+ static void set_stemlens (Grob *);
+ static int get_beam_count (Grob *me);
+ static Real get_beam_translation (Grob *me);
+ static Real get_beam_thickness (Grob *me);
+ static void connect_beams (Grob *me);
+ static vector<Beam_segment> get_beam_segments (Grob *me_grob, Grob **common);
+
+ DECLARE_SCHEME_CALLBACK (rest_collision_callback, (SCM element, SCM prev_off));
+ DECLARE_SCHEME_CALLBACK (pure_rest_collision_callback, (SCM element, SCM, SCM, SCM prev_off));
+ DECLARE_SCHEME_CALLBACK (print, (SCM));
+ DECLARE_SCHEME_CALLBACK (calc_beaming, (SCM));
+ DECLARE_SCHEME_CALLBACK (calc_stem_shorten, (SCM));
+ DECLARE_SCHEME_CALLBACK (calc_direction, (SCM));
+ DECLARE_SCHEME_CALLBACK (calc_normal_stems, (SCM));
+ DECLARE_SCHEME_CALLBACK (set_stem_lengths, (SCM));
+ DECLARE_SCHEME_CALLBACK (calc_cross_staff, (SCM));
+ DECLARE_SCHEME_CALLBACK (calc_beam_segments, (SCM));
+ /* position callbacks */
+ DECLARE_SCHEME_CALLBACK (quanting, (SCM, SCM, SCM));
+ DECLARE_SCHEME_CALLBACK (calc_x_positions, (SCM));
+
+ static int get_direction_beam_count (Grob *me, Direction d);
private:
- static Direction get_default_dir (Score_element*);
- static void set_stem_directions (Score_element*);
- static void auto_knees (Score_element*);
- static bool auto_knee (Score_element*,String gap_str, bool interstaff_b);
- static void set_stem_shorten (Score_element*);
- static void calc_default_position_and_height (Score_element*,Real* y, Real* dy);
- static bool suspect_slope_b (Score_element*, Real y, Real dy);
- static Real calc_slope_damping_f (Score_element*, Real dy);
- static Real calc_stem_y_f (Score_element*, Item* s, Real y, Real dy);
- static Real check_stem_length_f (Score_element*, Real y, Real dy);
- static void set_stem_length (Score_element*, Real y, Real dy);
- static Real quantise_dy_f (Score_element*, Real dy);
- static Real quantise_y_f (Score_element*, Real y, Real dy, int quant_dir);
- static int forced_stem_count (Score_element*);
+ friend class Beam_scoring_problem;
+
+ static Direction get_default_dir (Grob *);
+ static vector<Beam_segment> get_beam_segments (Grob *);
+ static void set_stem_directions (Grob *, Direction);
+ static void consider_auto_knees (Grob *);
+ static void set_stem_shorten (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);
};
-#endif // BEAM_HH
+#endif /* BEAM_HH */
projects / lilypond.git / blobdiff