2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2005--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
7 LilyPond is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 LilyPond is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
21 #include "engraver.hh"
23 #include "pointer-group-interface.hh"
24 #include "stream-event.hh"
26 #include "translator.icc"
28 class Laissez_vibrer_engraver : public Engraver
32 vector<Grob *> lv_ties_;
34 void stop_translation_timestep ();
35 DECLARE_ACKNOWLEDGER (note_head);
37 DECLARE_TRANSLATOR_LISTENER (laissez_vibrer);
39 TRANSLATOR_DECLARATIONS (Laissez_vibrer_engraver);
42 Laissez_vibrer_engraver::Laissez_vibrer_engraver ()
49 Laissez_vibrer_engraver::stop_translation_timestep ()
56 IMPLEMENT_TRANSLATOR_LISTENER (Laissez_vibrer_engraver, laissez_vibrer);
58 Laissez_vibrer_engraver::listen_laissez_vibrer (Stream_event *ev)
60 ASSIGN_EVENT_ONCE (event_, ev);
64 Laissez_vibrer_engraver::acknowledge_note_head (Grob_info inf)
66 /* use the heard event_ for all note heads, or an individual event for just
67 * a single note head (attached as an articulation inside a chord) */
68 Stream_event *tie_ev = event_;
69 Grob *head = inf.grob ();
70 Stream_event *note_ev = unsmob<Stream_event> (head->get_property ("cause"));
71 if (!tie_ev && note_ev && note_ev->in_event_class ("note-event"))
73 SCM articulations = note_ev->get_property ("articulations");
74 for (SCM s = articulations; !tie_ev && scm_is_pair (s); s = scm_cdr (s))
76 Stream_event *ev = unsmob<Stream_event> (scm_car (s));
77 if (ev && ev->in_event_class ("laissez-vibrer-event"))
85 SCM cause = tie_ev->self_scm ();
88 lv_column_ = make_item ("LaissezVibrerTieColumn", cause);
90 Grob *lv_tie = make_item ("LaissezVibrerTie", cause);
91 lv_tie->set_object ("note-head", head->self_scm ());
93 Pointer_group_interface::add_grob (lv_column_, ly_symbol2scm ("ties"),
96 if (is_direction (unsmob<Stream_event> (cause)->get_property ("direction")))
98 Direction d = to_dir (unsmob<Stream_event> (cause)->get_property ("direction"));
99 lv_tie->set_property ("direction", scm_from_int (d));
102 lv_tie->set_parent (lv_column_, Y_AXIS);
104 lv_ties_.push_back (lv_tie);
107 ADD_ACKNOWLEDGER (Laissez_vibrer_engraver, note_head);
108 ADD_TRANSLATOR (Laissez_vibrer_engraver,
110 "Create laissez vibrer items.",
114 "LaissezVibrerTieColumn ",