2 spacing-spanner.hh -- declare Spacing spanner
4 source file of the GNU LilyPond music typesetter
6 (c) 2005--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
9 #ifndef SPACING_SPANNER_HH
10 #define SPACING_SPANNER_HH
12 #include "lily-proto.hh"
13 #include "lily-guile.hh"
14 #include "rational.hh"
15 #include "std-vector.hh"
17 struct Spacing_options
20 bool stretch_uniformly_;
21 bool float_nonmusical_columns_;
22 bool float_grace_columns_;
23 Rational global_shortest_;
25 Real shortest_duration_space_;
28 void init_from_grob (Grob *me);
29 Real get_duration_space (Moment d, bool *) const;
33 TODO: prune to public interface.
38 static void generate_pair_spacing (Grob *me,
39 Paper_column *l, Paper_column *r,
41 Spacing_options const *options);
42 static void standard_breakable_column_spacing (Grob *me, Item *l, Item *r,
43 Real *fixed, Real *space,
44 Spacing_options const *);
45 static Real default_bar_spacing (Grob *, Grob *, Grob *, Moment);
46 static Real note_spacing (Grob *, Grob *, Grob *, Spacing_options const *, bool *);
47 static Real get_duration_space (Moment dur, Spacing_options const *, bool *);
48 static Rational effective_shortest_duration (Grob *me, vector<Grob*> const &all);
49 static void breakable_column_spacing (Grob *, Item *l, Item *r, Spacing_options const *);
50 static void prune_loose_columns (Grob *, vector<Grob*> *cols, Spacing_options const *);
51 static void set_explicit_neighbor_columns (vector<Grob*> const &cols);
52 static void set_implicit_neighbor_columns (vector<Grob*> const &cols);
53 static void generate_springs (Grob *me, vector<Grob*> const &cols, Spacing_options const *);
54 static void musical_column_spacing (Grob *, Item *, Item *, Spacing_options const *);
55 static vector<Grob*> get_columns (Spanner *me);
57 DECLARE_SCHEME_CALLBACK (set_springs, (SCM));
58 DECLARE_SCHEME_CALLBACK (calc_common_shortest_duration, (SCM));
59 static bool has_interface (Grob *);
62 #endif /* SPACING_SPANNER_HH */