2 note-heads-engraver.cc -- part of GNU LilyPond
4 (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
8 #include "rhythmic-head.hh"
9 #include "output-def.hh"
12 #include "dot-column.hh"
13 #include "staff-symbol-referencer.hh"
15 #include "engraver.hh"
18 class Note_heads_engraver : public Engraver
20 Link_array<Item> notes_;
21 Link_array<Item> dots_;
22 Link_array<Music> note_reqs_;
25 TRANSLATOR_DECLARATIONS (Note_heads_engraver);
28 virtual bool try_music (Music *req) ;
29 virtual void process_music ();
31 virtual void stop_translation_timestep ();
34 Note_heads_engraver::Note_heads_engraver ()
39 Note_heads_engraver::try_music (Music *m)
41 if (m->is_mus_type ("note-event"))
46 else if (m->is_mus_type ("busy-playing-event"))
47 return note_reqs_.size ();
54 Note_heads_engraver::process_music ()
56 for (int i=0; i < note_reqs_.size (); i++)
59 Music * req = note_reqs_[i];
60 Item *note = make_item ("NoteHead", req->self_scm ());
62 Duration dur = *unsmob_duration (req->get_property ("duration"));
64 note->set_property ("duration-log", scm_int2num (dur.duration_log ()));
67 Item * d = make_item ("Dots", note->self_scm ());
68 Rhythmic_head::set_dots (note, d);
71 != robust_scm2int (d->get_property ("dot-count"), 0))
72 d->set_property ("dot-count", scm_int2num (dur.dot_count ()));
74 d->set_parent (note, Y_AXIS);
79 Pitch *pit =unsmob_pitch (req->get_property ("pitch"));
81 int pos = pit ? pit->steps () : 0;
82 SCM c0 = get_property ("middleCPosition");
83 if (scm_is_number (c0))
84 pos += scm_to_int (c0);
86 note->set_property ("staff-position", scm_int2num (pos));
92 Note_heads_engraver::stop_translation_timestep ()
102 ENTER_DESCRIPTION (Note_heads_engraver,
103 /* descr */ "Generate noteheads.",
104 /* creats*/ "NoteHead Dots",
105 /* accepts */ "note-event busy-playing-event",
107 /* reads */ "middleCPosition",