2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 1998--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
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 "performer.hh"
22 #include "audio-item.hh"
24 #include "stream-event.hh"
25 #include "translator.icc"
26 // #include "international.hh"
29 struct Head_event_tuple
31 Audio_element_info head_;
33 Head_event_tuple () { }
34 Head_event_tuple (Audio_element_info h, Moment m)
42 class Tie_performer : public Performer
45 // We don't really need a deque here. A vector would suffice. However,
46 // for some strange reason, using vectors always leads to memory
47 // corruption in the STL templates! (i.e. after the first
48 // now_heads_.push_back (inf_mom), the now_heads_.size() will be
49 // something like 3303820998 :(
50 deque<Head_event_tuple> now_heads_;
51 deque<Head_event_tuple> now_tied_heads_;
52 deque<Head_event_tuple> heads_to_tie_;
55 void stop_translation_timestep ();
56 void start_translation_timestep ();
57 virtual void acknowledge_audio_element (Audio_element_info);
58 void process_music ();
59 DECLARE_TRANSLATOR_LISTENER (tie);
61 TRANSLATOR_DECLARATIONS (Tie_performer);
64 Tie_performer::Tie_performer ()
69 IMPLEMENT_TRANSLATOR_LISTENER (Tie_performer, tie);
71 Tie_performer::listen_tie (Stream_event *ev)
77 Tie_performer::process_music ()
80 context ()->set_property ("tieMelismaBusy", SCM_BOOL_T);
84 Tie_performer::acknowledge_audio_element (Audio_element_info inf)
86 if (Audio_note *an = dynamic_cast<Audio_note *> (inf.elem_))
88 // message (_f ("acknowledge_audio_element, Size of now_heads_=%d", now_heads_.size ()));
89 Head_event_tuple inf_mom (inf, now_mom ());
91 now_tied_heads_.push_back (inf_mom);
93 now_heads_.push_back (inf_mom);
95 // message (_f ("acknowledge_audio_element, added, Size of now_heads_=%d", now_heads_.size ()));
96 // Find a previous note that ties to the current note. If it exists,
97 // remove it from the heads_to_tie vector and create the tie
98 deque<Head_event_tuple>::iterator it;
100 Stream_event *right_mus = inf.event_;
101 for ( it = heads_to_tie_.begin() ; (!found) && (it < heads_to_tie_.end()); it++ )
103 Audio_element_info et = (*it).head_;
104 Audio_note *th = dynamic_cast<Audio_note *> (et.elem_);
105 Stream_event *left_mus = et.event_;
107 if (th && right_mus && left_mus
108 && ly_is_equal (right_mus->get_property ("pitch"),
109 left_mus->get_property ("pitch")))
112 Moment skip = now_mom() - (*it).moment_ - th->length_mom_;
113 an->tie_to (th, skip);
114 // this invalidates the iterator, we are leaving the loop anyway
115 heads_to_tie_.erase (it);
122 Tie_performer::start_translation_timestep ()
124 context ()->set_property ("tieMelismaBusy",
125 ly_bool2scm (heads_to_tie_.size ()));
129 Tie_performer::stop_translation_timestep ()
131 // We might have dangling open ties like c~ d. Close them, unless we have
132 // tieWaitForNote set...
133 if (!to_boolean (get_property ("tieWaitForNote")))
135 heads_to_tie_.clear ();
140 for (vsize i = now_heads_.size (); i--;)
141 heads_to_tie_.push_back (now_heads_[i]);
144 for (vsize i = now_tied_heads_.size (); i--;)
145 heads_to_tie_.push_back (now_tied_heads_[i]);
149 now_tied_heads_.clear ();
152 ADD_TRANSLATOR (Tie_performer,
154 "Generate ties between note heads of equal pitch.",