2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2002--2015 Juergen Reuter <reuter@ipd.uka.de>
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/>.
20 #include "international.hh"
22 #include "engraver.hh"
23 #include "note-column.hh"
24 #include "tuplet-bracket.hh"
26 #include "stream-event.hh"
29 #include "translator.icc"
31 class Ligature_bracket_engraver : public Engraver
34 virtual void process_music ();
35 virtual void stop_translation_timestep ();
36 void acknowledge_rest (Grob_info);
37 void acknowledge_note_column (Grob_info);
38 void listen_ligature (Stream_event *);
40 TRANSLATOR_DECLARATIONS (Ligature_bracket_engraver);
43 Drul_array<Stream_event *> events_drul_;
44 Spanner *finished_ligature_;
46 Stream_event *previous_start_event_;
50 Ligature_bracket_engraver::listen_ligature (Stream_event *ev)
52 Direction d = to_dir (ev->get_property ("span-direction"));
53 ASSIGN_EVENT_ONCE (events_drul_[d], ev);
56 Ligature_bracket_engraver::Ligature_bracket_engraver ()
59 finished_ligature_ = 0;
60 events_drul_[LEFT] = events_drul_[RIGHT] = 0;
61 previous_start_event_ = 0;
65 Ligature_bracket_engraver::process_music ()
67 if (events_drul_[STOP])
71 events_drul_[STOP]->origin ()->warning (_ ("cannot find start of ligature"));
75 finished_ligature_ = ligature_;
77 previous_start_event_ = 0;
80 if (events_drul_[START])
84 events_drul_[START]->origin ()->warning (_ ("already have a ligature"));
88 previous_start_event_ = events_drul_[START];
89 ligature_ = make_spanner ("LigatureBracket", events_drul_[START]->self_scm ());
94 Ligature_bracket_engraver::acknowledge_note_column (Grob_info info)
98 Tuplet_bracket::add_column (ligature_,
100 add_bound_item (ligature_, info.item ());
105 Ligature_bracket_engraver::acknowledge_rest (Grob_info info)
107 acknowledge_note_column (info);
111 Ligature_bracket_engraver::stop_translation_timestep ()
114 = events_drul_[RIGHT] = 0;
115 finished_ligature_ = 0;
120 Ligature_bracket_engraver::boot ()
122 ADD_LISTENER (Ligature_bracket_engraver, ligature);
123 ADD_ACKNOWLEDGER (Ligature_bracket_engraver, rest);
124 ADD_ACKNOWLEDGER (Ligature_bracket_engraver, note_column);
127 ADD_TRANSLATOR (Ligature_bracket_engraver,
129 "Handle @code{Ligature_events} by engraving @code{Ligature}"