]> git.donarmstrong.com Git - lilypond.git/blob - lily/lyric-performer.cc
Fix some bugs in the dynamic engraver and PostScript backend
[lilypond.git] / lily / lyric-performer.cc
1 /*
2   lyric-performer.cc -- implement Lyric_performer
3
4   source file of the GNU LilyPond music typesetter
5
6   (c) 1997--2006 Jan Nieuwenhuizen <janneke@gnu.org>
7 */
8
9 #include "audio-item.hh"
10 #include "performer.hh"
11 #include "music.hh"
12
13 class Lyric_performer : public Performer
14 {
15 public:
16   TRANSLATOR_DECLARATIONS (Lyric_performer);
17 protected:
18
19   virtual bool try_music (Music *event);
20   void stop_translation_timestep ();
21    void process_music ();
22
23 private:
24   vector<Music*> events_;
25   Audio_text *audio_;
26 };
27
28 Lyric_performer::Lyric_performer ()
29 {
30   audio_ = 0;
31 }
32
33 void
34 Lyric_performer::process_music ()
35 {
36   // FIXME: won't work with fancy lyrics
37   if (events_.size ()
38       && scm_is_string (events_[0]->get_property ("text"))
39       && ly_scm2string (events_[0]->get_property ("text")).length ())
40     {
41       audio_ = new Audio_text (Audio_text::LYRIC,
42                                ly_scm2string (events_[0]->get_property ("text")));
43       Audio_element_info info (audio_, events_[0]);
44       announce_element (info);
45     }
46   events_.clear ();
47 }
48
49 void
50 Lyric_performer::stop_translation_timestep ()
51 {
52   if (audio_)
53     {
54       play_element (audio_);
55       audio_ = 0;
56     }
57   events_.clear ();
58 }
59
60 bool
61 Lyric_performer::try_music (Music *event)
62 {
63   if (event->is_mus_type ("lyric-event"))
64     {
65       events_.push_back (event);
66       return true;
67     }
68   return false;
69 }
70
71 #include "translator.icc"
72
73 ADD_TRANSLATOR (Lyric_performer, "", "", "lyric-event",
74                 "", "");