2 head-grav.cc -- part of GNU LilyPond
4 (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 #include "rhythmic-head.hh"
10 #include "output-def.hh"
13 #include "dot-column.hh"
14 #include "staff-symbol-referencer.hh"
16 #include "score-engraver.hh"
20 make (guitar-like) tablature note
22 class Tab_note_heads_engraver : public Engraver
24 Link_array<Item> notes_;
26 Link_array<Item> dots_;
27 Link_array<Music> note_events_;
28 Link_array<Music> tabstring_events_;
30 TRANSLATOR_DECLARATIONS (Tab_note_heads_engraver);
33 virtual bool try_music (Music *event) ;
34 virtual void process_music ();
36 virtual void stop_translation_timestep ();
40 Tab_note_heads_engraver::Tab_note_heads_engraver ()
45 Tab_note_heads_engraver::try_music (Music *m)
47 if (m->is_mus_type ("note-event"))
49 note_events_.push (m);
52 else if (m->is_mus_type ("string-number-event"))
54 tabstring_events_.push (m);
57 else if (m->is_mus_type ("busy-playing-event"))
59 return note_events_.size ();
67 Tab_note_heads_engraver::process_music ()
70 for (int i=0; i < note_events_.size (); i++)
72 SCM stringTunings = get_property ("stringTunings");
73 int number_of_strings = ((int) ly_length (stringTunings));
74 bool high_string_one = to_boolean (get_property ("highStringOne"));
77 Music * event = note_events_[i];
78 Item * note = make_item ("TabNoteHead", event->self_scm ());
81 Music * tabstring_event=0;
83 for (SCM s =event->get_property ("articulations");
84 !tabstring_event && ly_c_pair_p (s); s = ly_cdr (s))
86 Music * art = unsmob_music (ly_car (s));
88 if (art->is_mus_type ("string-number-event"))
89 tabstring_event = art;
92 if (!tabstring_event && j < tabstring_events_.size ())
94 tabstring_event = tabstring_events_[j];
95 if (j +1 < tabstring_events_.size ())
103 tab_string = ly_scm2int (tabstring_event->get_property ("string-number"));
108 tab_string = high_string_one ? 1 : number_of_strings;
109 string_found = false;
112 Duration dur = *unsmob_duration (event->get_property ("duration"));
113 note->set_property ("duration-log",
114 scm_int2num (dur.duration_log ()));
116 if (dur.dot_count ())
118 Item * d = make_item ("Dots", event->self_scm ());
119 Rhythmic_head::set_dots (note, d);
122 != ly_scm2int (d->get_property ("dot-count")))
123 d->set_property ("dot-count", scm_int2num (dur.dot_count ()));
125 d->set_parent (note, Y_AXIS);
131 SCM scm_pitch = event->get_property ("pitch");
132 SCM proc = get_property ("tablatureFormat");
133 SCM min_fret_scm = get_property ("minimumFret");
134 int min_fret = ly_c_number_p (min_fret_scm) ? ly_scm2int (min_fret_scm) : 0;
136 while (!string_found)
138 int fret = unsmob_pitch (scm_pitch)->semitone_pitch ()
139 - ly_scm2int (scm_list_ref (stringTunings,scm_int2num (tab_string-1)));
141 tab_string += high_string_one ? 1 : -1;
146 SCM text = scm_call_3 (proc, scm_int2num (tab_string), stringTunings, scm_pitch);
148 int pos = 2 * tab_string - number_of_strings - 1; // No tab-note between the string !!!
149 if (to_boolean (get_property ("stringOneTopmost")))
152 note->set_property ("text", text);
154 note->set_property ("staff-position", scm_int2num (pos));
160 Tab_note_heads_engraver::stop_translation_timestep ()
164 note_events_.clear ();
165 tabstring_events_.clear ();
169 ENTER_DESCRIPTION (Tab_note_heads_engraver,
170 /* descr */ "Generate one or more tablature noteheads from Music of type NoteEvent.",
171 /* creats*/ "TabNoteHead Dots",
172 /* accepts */ "note-event string-number-event busy-playing-event",
174 /* reads */ "middleCPosition stringTunings minimumFret tablatureFormat highStringOne stringOneTopmost",