2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2006--2015 Han-Wen Nienhuys
6 LilyPond is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 LilyPond is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
24 #include "articulations.hh"
27 #include "engraver.hh"
29 #include "stream-event.hh"
32 #include "translator.icc"
35 make (guitar-like) tablature note
37 class Fretboard_engraver : public Engraver
41 vector<Stream_event *> note_events_;
42 vector<Stream_event *> tabstring_events_;
43 vector<Stream_event *> fingering_events_;
45 TRANSLATOR_DECLARATIONS (Fretboard_engraver);
48 void stop_translation_timestep ();
49 void process_music ();
50 virtual void derived_mark () const;
51 void listen_note (Stream_event *);
52 void listen_string_number (Stream_event *);
53 void listen_fingering (Stream_event *);
60 Fretboard_engraver::derived_mark () const
62 scm_gc_mark (last_placements_);
65 Fretboard_engraver::Fretboard_engraver ()
68 last_placements_ = SCM_BOOL_F;
72 Fretboard_engraver::listen_note (Stream_event *ev)
74 note_events_.push_back (ev);
78 Fretboard_engraver::listen_string_number (Stream_event *ev)
80 tabstring_events_.push_back (ev);
84 Fretboard_engraver::listen_fingering (Stream_event *ev)
86 fingering_events_.push_back (ev);
90 Fretboard_engraver::process_music ()
92 if (!note_events_.size ())
95 SCM tab_strings = articulation_list (note_events_,
97 "string-number-event");
98 SCM fingers = articulation_list (note_events_,
101 fret_board_ = make_item ("FretBoard", note_events_[0]->self_scm ());
102 SCM fret_notes = ly_cxx_vector_to_list (note_events_);
103 SCM proc = get_property ("noteToFretFunction");
104 if (ly_is_procedure (proc))
106 context ()->self_scm (),
108 scm_list_2 (tab_strings, fingers),
109 fret_board_->self_scm ());
110 SCM changes = get_property ("chordChanges");
111 SCM placements = fret_board_->get_property ("dot-placement-list");
112 if (to_boolean (changes)
113 && ly_is_equal (last_placements_, placements))
114 fret_board_->set_property ("begin-of-line-visible", SCM_BOOL_T);
116 last_placements_ = placements;
120 Fretboard_engraver::stop_translation_timestep ()
123 note_events_.clear ();
124 tabstring_events_.clear ();
125 fingering_events_.clear ();
129 Fretboard_engraver::boot ()
131 ADD_LISTENER (Fretboard_engraver, note);
132 ADD_LISTENER (Fretboard_engraver, string_number);
133 ADD_LISTENER (Fretboard_engraver, fingering);
136 ADD_TRANSLATOR (Fretboard_engraver,
138 "Generate fret diagram from one or more events of type"
139 " @code{NoteEvent}.",
148 "maximumFretStretch "
150 "noteToFretFunction "
151 "predefinedDiagramTable "