2 beam.hh -- part of GNU LilyPond
4 (c) 1996--2002 Han-Wen Nienhuys
10 #include "lily-proto.hh"
11 #include "lily-guile.hh"
12 #include "stem-info.hh"
18 static int visible_stem_count (Grob*);
19 static Grob* first_visible_stem (Grob*);
20 static Grob* last_visible_stem (Grob*);
21 static bool has_interface (Grob*);
22 DECLARE_SCHEME_CALLBACK (rest_collision_callback, (SCM element, SCM axis));
24 static void add_stem (Grob*,Grob*);
25 static bool knee_b (Grob*);
26 static void set_beaming (Grob*,Beaming_info_list *);
27 static void set_stemlens (Grob*);
28 static int get_beam_count (Grob*me);
29 static Real get_beam_translation (Grob*me);
30 static void connect_beams (Grob*me);
31 DECLARE_SCHEME_CALLBACK (space_function, (SCM, SCM));
32 DECLARE_SCHEME_CALLBACK (brew_molecule, (SCM));
33 DECLARE_SCHEME_CALLBACK (before_line_breaking, (SCM));
34 DECLARE_SCHEME_CALLBACK (after_line_breaking, (SCM));
36 /* position callbacks */
37 DECLARE_SCHEME_CALLBACK (least_squares, (SCM));
38 DECLARE_SCHEME_CALLBACK (check_concave, (SCM));
39 DECLARE_SCHEME_CALLBACK (slope_damping, (SCM));
40 DECLARE_SCHEME_CALLBACK (shift_region_to_valid, (SCM));
41 DECLARE_SCHEME_CALLBACK (quanting, (SCM));
42 static Real score_slopes_dy (Real, Real, Real, Real, bool);
43 static Real score_stem_lengths (Link_array<Grob>,
45 Array<Real>, Array<Real>,
46 Real, Real, bool, Real, Real);
47 static Real score_forbidden_quants (Real, Real,
48 Real, Real, Real, Real,
49 int, Direction, Direction);
52 static int get_direction_beam_count (Grob *me, Direction d);
54 static Direction get_default_dir (Grob*);
55 static void set_stem_directions (Grob*, Direction );
56 static void consider_auto_knees (Grob*);
57 static void set_stem_shorten (Grob*);
58 static Real calc_stem_y (Grob*, Grob* s, Grob**c,
60 Interval pos, bool french);
61 static void set_stem_lengths (Grob*);
62 static int forced_stem_count (Grob*);
65 const int REGION_SIZE = 2;
66 #define DEBUG_QUANTING 0