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--2000 Jan Nieuwenhuizen <janneke@gnu.org>
   7 */
   8
   9 #include "lyric-performer.hh"
  10 #include "musical-request.hh"
  11 #include "audio-item.hh"
  12
  13 ADD_THIS_TRANSLATOR (Lyric_performer);
  14
  15 Lyric_performer::Lyric_performer ()
  16 {
  17   audio_p_ = 0;
  18 }
  19
  20 void
  21 Lyric_performer::do_print () const
  22 {
  23 #ifndef NPRINT
  24   if (lreq_arr_.size ())
  25     lreq_arr_[0]->print ();
  26 #endif
  27 }
  28
  29 void
  30 Lyric_performer::do_process_requests ()
  31 {
  32   if (lreq_arr_.size () && lreq_arr_[0]->text_str_.length_i ())
  33     {
  34       audio_p_ = new Audio_text (Audio_text::LYRIC, lreq_arr_[0]->text_str_);
  35       Audio_element_info info (audio_p_, lreq_arr_[0]);
  36       announce_element (info);
  37     }
  38   lreq_arr_.clear();
  39 }
  40
  41 void
  42 Lyric_performer::do_pre_move_processing ()
  43 {
  44   if (audio_p_)
  45     {
  46       play_element (audio_p_);
  47       audio_p_ = 0;
  48     }
  49   lreq_arr_.clear();
  50 }
  51
  52 bool
  53 Lyric_performer::do_try_music (Music* req_l)
  54 {
  55   if (Lyric_req *lr = dynamic_cast <Lyric_req *> (req_l))
  56     {
  57       lreq_arr_.push (lr);
  58       return true;
  59     }
  60   return false;
  61 }
  62