2 stem.hh -- declare Stem
4 (c) 1996--2004 Han-Wen Nienhuys
10 #include "lily-proto.hh"
11 #include "lily-guile.hh"
12 #include "stem-info.hh"
13 #include "drul-array.hh"
18 static Array<int> note_head_positions (Grob *);
19 static int duration_log (Grob *);
20 static void set_beaming (Grob *, int, Direction d);
21 static int get_beaming (Grob *, Direction d);
22 static Spanner *get_beam (Grob *);
23 static Grob *first_head (Grob *);
24 static Grob *last_head (Grob *);
25 static Drul_array<Grob*> extremal_heads (Grob *);
26 static Grob *support_head (Grob *) ;
27 static void add_head (Grob *me, Grob *n);
28 static Stem_info get_stem_info (Grob *);
29 static Real chord_start_y (Grob *);
30 static Direction get_direction (Grob *);
31 static void set_stemend (Grob *,Real);
32 static Direction get_default_dir (Grob *);
33 static Slice Stem::beam_multiplicity (Grob *);
34 static Real thickness (Grob*);
35 static int head_count (Grob *);
36 static bool is_invisible (Grob *) ;
37 static Interval head_positions (Grob *);
38 static Real get_default_stem_end_position (Grob*me);
39 static void position_noteheads (Grob *);
40 static Real stem_end_position (Grob *);
41 static Stencil flag (Grob *);
42 static bool has_interface (Grob *);
43 static void set_spacing_hints (Grob *);
45 DECLARE_SCHEME_CALLBACK (print, (SCM));
46 DECLARE_SCHEME_CALLBACK (off_callback, (SCM element, SCM axis));
47 DECLARE_SCHEME_CALLBACK (before_line_breaking, (SCM));
48 DECLARE_SCHEME_CALLBACK (dim_callback, (SCM smob, SCM axis));
49 DECLARE_SCHEME_CALLBACK (height, (SCM, SCM));
52 static void calc_stem_info (Grob *);