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1 /*
2   This file is part of LilyPond, the GNU music typesetter.
3
4   Copyright (C) 2002--2012 Han-Wen Nienhuys, Jean-Baptiste Lamy <jiba@tuxfamily.org>,
5
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.
10
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.
15
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/>.
18 */
19
20 #include <cctype>
21 #include <cstdio>
22
23 #include "engraver.hh"
24
25 using namespace std;
26
27 #include "articulations.hh"
28 #include "duration.hh"
29 #include "item.hh"
30 #include "output-def.hh"
31 #include "pitch.hh"
32 #include "rhythmic-head.hh"
33 #include "stream-event.hh"
34 #include "warn.hh"
35 #include "context.hh"
36
37 #include "translator.icc"
38
39 /**
40    make (guitar-like) tablature note
41 */
42 class Tab_note_heads_engraver : public Engraver
43 {
44   vector<Stream_event *> note_events_;
45   vector<Stream_event *> tabstring_events_;
46   vector<Stream_event *> fingering_events_;
47
48 public:
49   TRANSLATOR_DECLARATIONS (Tab_note_heads_engraver);
50
51 protected:
52   DECLARE_TRANSLATOR_LISTENER (note);
53   DECLARE_TRANSLATOR_LISTENER (string_number);
54   DECLARE_TRANSLATOR_LISTENER (fingering);
55   void process_music ();
56
57   void stop_translation_timestep ();
58 };
59
60 Tab_note_heads_engraver::Tab_note_heads_engraver ()
61 {
62 }
63
64 IMPLEMENT_TRANSLATOR_LISTENER (Tab_note_heads_engraver, note);
65 void
66 Tab_note_heads_engraver::listen_note (Stream_event *ev)
67 {
68   note_events_.push_back (ev);
69 }
70
71 IMPLEMENT_TRANSLATOR_LISTENER (Tab_note_heads_engraver, string_number);
72 void
73 Tab_note_heads_engraver::listen_string_number (Stream_event *ev)
74 {
75   tabstring_events_.push_back (ev);
76 }
77
78 IMPLEMENT_TRANSLATOR_LISTENER (Tab_note_heads_engraver, fingering);
79 void
80 Tab_note_heads_engraver::listen_fingering (Stream_event *ev)
81 {
82   fingering_events_.push_back (ev);
83 }
84
85 void
86 Tab_note_heads_engraver::process_music ()
87 {
88   SCM tab_strings = articulation_list (note_events_,
89                                        tabstring_events_,
90                                        "string-number-event");
91   SCM defined_fingers = articulation_list (note_events_,
92                                            fingering_events_,
93                                            "fingering-event");
94   SCM tab_notes = ly_cxx_vector_to_list (note_events_);
95   SCM proc = get_property ("noteToFretFunction");
96   SCM string_fret_finger = SCM_EOL;
97   if (ly_is_procedure (proc))
98     string_fret_finger = scm_call_3 (proc,
99                                      context ()->self_scm (),
100                                      tab_notes,
101                                      scm_list_2 (tab_strings,
102                                                  defined_fingers));
103   SCM note_entry = SCM_EOL;
104   SCM string_number = SCM_EOL;
105   SCM fret = SCM_EOL;
106   SCM fret_label = SCM_EOL;
107   SCM fret_procedure = get_property ("tablatureFormat");
108   SCM staff_line_procedure = get_property ("tabStaffLineLayoutFunction");
109   SCM staff_position = SCM_EOL;
110   vsize fret_count = (vsize) scm_ilength (string_fret_finger);
111   bool length_changed = (note_events_.size () != fret_count);
112   vsize index;
113
114   if (string_fret_finger != SCM_EOL)
115     for (vsize i = 0; i < fret_count; i++)
116       {
117         note_entry = scm_list_ref (string_fret_finger, scm_from_int (i));
118         string_number = scm_car (note_entry);
119         if (string_number != SCM_BOOL_F)
120           {
121             fret = scm_cadr (note_entry);
122             fret_label = scm_call_3 (fret_procedure,
123                                      context ()->self_scm (),
124                                      string_number,
125                                      fret);
126             index = length_changed ? 0 : i;
127             Item *note = make_item ("TabNoteHead", note_events_[index]->self_scm ());
128             note->set_property ("text", fret_label);
129             staff_position = scm_call_2 (staff_line_procedure,
130                                          context ()->self_scm (),
131                                          string_number);
132             note->set_property ("staff-position", staff_position);
133           }
134       }
135 }
136
137 void
138 Tab_note_heads_engraver::stop_translation_timestep ()
139 {
140   note_events_.clear ();
141   tabstring_events_.clear ();
142   fingering_events_.clear ();
143 }
144
145 ADD_TRANSLATOR (Tab_note_heads_engraver,
146                 /* doc */
147                 "Generate one or more tablature note heads from event of type"
148                 " @code{NoteEvent}.",
149
150                 /* create */
151                 "TabNoteHead ",
152
153                 /* read */
154                 "defaultStrings "
155                 "fretLabels "
156                 "highStringOne "
157                 "middleCPosition "
158                 "minimumFret "
159                 "noteToFretFunction "
160                 "stringOneTopmost "
161                 "stringTunings "
162                 "tablatureFormat "
163                 "tabStaffLineLayoutFunction ",
164
165                 /* write */
166                 ""
167                );
168