2 tab-note-heads-engraver.cc -- part of GNU LilyPond
4 based on note-heads-engraver.cc, by Jean-Baptiste Lamy <jiba@tuxfamily.org>,
12 #include "engraver.hh"
17 #include "duration.hh"
19 #include "output-def.hh"
21 #include "rhythmic-head.hh"
22 #include "stream-event.hh"
25 #include "translator.icc"
28 make (guitar-like) tablature note
30 class Tab_note_heads_engraver : public Engraver
34 vector<Stream_event*> note_events_;
35 vector<Stream_event*> tabstring_events_;
37 TRANSLATOR_DECLARATIONS (Tab_note_heads_engraver);
40 DECLARE_TRANSLATOR_LISTENER (note);
41 DECLARE_TRANSLATOR_LISTENER (string_number);
42 void process_music ();
44 void stop_translation_timestep ();
47 Tab_note_heads_engraver::Tab_note_heads_engraver ()
51 IMPLEMENT_TRANSLATOR_LISTENER (Tab_note_heads_engraver, note);
53 Tab_note_heads_engraver::listen_note (Stream_event *ev)
55 note_events_.push_back (ev);
58 IMPLEMENT_TRANSLATOR_LISTENER (Tab_note_heads_engraver, string_number);
60 Tab_note_heads_engraver::listen_string_number (Stream_event *ev)
62 tabstring_events_.push_back (ev);
66 Tab_note_heads_engraver::process_music ()
69 for (vsize i = 0; i < note_events_.size (); i++)
71 SCM string_tunings = get_property ("stringTunings");
72 int string_count = scm_ilength (string_tunings);
73 bool high_string_one = to_boolean (get_property ("highStringOne"));
75 Stream_event *event = note_events_[i];
77 Stream_event *tabstring_event = 0;
79 for (SCM s = event->get_property ("articulations");
80 !tabstring_event && scm_is_pair (s); s = scm_cdr (s))
82 Stream_event *art = unsmob_stream_event (scm_car (s));
84 if (art->in_event_class ("string-number-event"))
85 tabstring_event = art;
88 if (!tabstring_event && j < tabstring_events_.size ())
90 tabstring_event = tabstring_events_[j];
91 if (j + 1 < tabstring_events_.size ())
95 int string_number = 0;
97 string_number = scm_to_int (tabstring_event->get_property ("string-number"));
101 SCM scm_pitch = event->get_property ("pitch");
102 int min_fret = robust_scm2int (get_property ("minimumFret"), 0);
103 int start = (high_string_one) ? 1 : string_count;
104 int end = (high_string_one) ? string_count : 1;
109 int fret = unsmob_pitch (scm_pitch)->semitone_pitch ()
110 - scm_to_int (robust_list_ref (i - 1, string_tunings));
112 if (fret >= min_fret)
117 i += high_string_one ? 1 : -1;
124 SCM proc = get_property ("tablatureFormat");
125 SCM text = scm_call_3 (proc, scm_from_int (string_number),
126 context ()->self_scm (),
128 Item *note = make_item ("TabNoteHead", event->self_scm ());
129 note->set_property ("text", text);
131 int pos = 2 * string_number - string_count - 1; // No tab-note between the string !!!
132 if (to_boolean (get_property ("stringOneTopmost")))
135 note->set_property ("staff-position", scm_from_int (pos));
137 notes_.push_back (note);
140 event->origin ()->warning ("could not calculate a string number.");
144 Tab_note_heads_engraver::stop_translation_timestep ()
147 note_events_.clear ();
148 tabstring_events_.clear ();
151 ADD_TRANSLATOR (Tab_note_heads_engraver,
152 /* doc */ "Generate one or more tablature noteheads from event of type NoteEvent.",