2 head-grav.cc -- part of GNU LilyPond
4 (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "rhythmic-head.hh"
11 #include "output-def.hh"
14 #include "dot-column.hh"
15 #include "staff-symbol-referencer.hh"
17 #include "score-engraver.hh"
21 make (guitar-like) tablature note
23 class Tab_note_heads_engraver : public Engraver
25 Link_array<Item> notes_;
27 Link_array<Item> dots_;
28 Link_array<Music> note_events_;
29 Link_array<Music> tabstring_events_;
31 TRANSLATOR_DECLARATIONS (Tab_note_heads_engraver);
34 virtual bool try_music (Music *event) ;
35 virtual void process_music ();
37 virtual void stop_translation_timestep ();
41 Tab_note_heads_engraver::Tab_note_heads_engraver ()
46 Tab_note_heads_engraver::try_music (Music *m)
48 if (m->is_mus_type ("note-event"))
50 note_events_.push (m);
53 else if (m->is_mus_type ("string-number-event"))
55 tabstring_events_.push (m);
58 else if (m->is_mus_type ("busy-playing-event"))
60 return note_events_.size ();
68 Tab_note_heads_engraver::process_music ()
71 for (int i = 0; i < note_events_.size (); i++)
73 SCM stringTunings = get_property ("stringTunings");
74 int number_of_strings = ((int) ly_length (stringTunings));
75 bool high_string_one = to_boolean (get_property ("highStringOne"));
78 Music * event = note_events_[i];
79 Item * note = make_item ("TabNoteHead", event->self_scm ());
82 Music * tabstring_event = 0;
84 for (SCM s = event->get_property ("articulations");
85 !tabstring_event && scm_is_pair (s); s = scm_cdr (s))
87 Music * art = unsmob_music (scm_car (s));
89 if (art->is_mus_type ("string-number-event"))
90 tabstring_event = art;
93 if (!tabstring_event && j < tabstring_events_.size ())
95 tabstring_event = tabstring_events_[j];
96 if (j +1 < tabstring_events_.size ())
104 tab_string = scm_to_int (tabstring_event->get_property ("string-number"));
109 tab_string = high_string_one ? 1 : number_of_strings;
110 string_found = false;
113 Duration dur = *unsmob_duration (event->get_property ("duration"));
114 note->set_property ("duration-log",
115 scm_int2num (dur.duration_log ()));
117 if (dur.dot_count ())
119 Item * d = make_item ("Dots", event->self_scm ());
120 Rhythmic_head::set_dots (note, d);
123 != scm_to_int (d->get_property ("dot-count")))
124 d->set_property ("dot-count", scm_int2num (dur.dot_count ()));
126 d->set_parent (note, Y_AXIS);
132 SCM scm_pitch = event->get_property ("pitch");
133 SCM proc = get_property ("tablatureFormat");
134 SCM min_fret_scm = get_property ("minimumFret");
135 int min_fret = scm_is_number (min_fret_scm) ? scm_to_int (min_fret_scm) : 0;
137 while (!string_found)
139 int fret = unsmob_pitch (scm_pitch)->semitone_pitch ()
140 - scm_to_int (scm_list_ref (stringTunings,scm_int2num (tab_string-1)));
142 tab_string += high_string_one ? 1 : -1;
147 SCM text = scm_call_3 (proc, scm_int2num (tab_string), stringTunings, scm_pitch);
149 int pos = 2 * tab_string - number_of_strings - 1; // No tab-note between the string !!!
150 if (to_boolean (get_property ("stringOneTopmost")))
153 note->set_property ("text", text);
155 note->set_property ("staff-position", scm_int2num (pos));
161 Tab_note_heads_engraver::stop_translation_timestep ()
165 note_events_.clear ();
166 tabstring_events_.clear ();
170 ADD_TRANSLATOR (Tab_note_heads_engraver,
171 /* descr */ "Generate one or more tablature noteheads from Music of type NoteEvent.",
172 /* creats*/ "TabNoteHead Dots",
173 /* accepts */ "note-event string-number-event busy-playing-event",
175 /* reads */ "middleCPosition stringTunings minimumFret tablatureFormat highStringOne stringOneTopmost",