lily/lyric-grav.cc

   1 /*
   2   lyric-engraver.cc -- implement Lyric_engraver
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "lyric-engraver.hh"
  10 #include "musical-request.hh"
  11 #include "text-item.hh"
  12 #include "paper-def.hh"
  13 #include "lookup.hh"
  14
  15 Lyric_engraver::Lyric_engraver()
  16 {
  17     lreq_l_ =0;
  18     lyric_item_p_ =0;
  19 }
  20
  21 bool
  22 Lyric_engraver::do_try_request(Request*r)
  23 {
  24     Musical_req * m =r->musical();
  25     if (!m || ! m->lreq_l())
  26         return false;
  27     lreq_l_ = m->lreq_l();
  28
  29     return true;
  30 }
  31
  32 void
  33 Lyric_engraver::do_process_requests()
  34 {
  35     if ( lreq_l_ ) {
  36         lyric_item_p_ =  new Text_item(lreq_l_->tdef_p_ );
  37         lyric_item_p_->dir_i_ = -1;
  38         lyric_item_p_->fat_b_ = true;
  39         announce_element( Score_elem_info( lyric_item_p_, lreq_l_));
  40     }
  41 }
  42
  43 void
  44 Lyric_engraver::do_post_move_processing()
  45 {
  46     lreq_l_ =0;
  47 }
  48
  49 void
  50 Lyric_engraver::do_pre_move_processing()
  51 {
  52     if ( lyric_item_p_ ){
  53         typeset_element( lyric_item_p_);
  54         lyric_item_p_ =0;
  55     }
  56 }
  57
  58 IMPLEMENT_STATIC_NAME(Lyric_engraver);
  59 IMPLEMENT_IS_TYPE_B1(Lyric_engraver,Engraver);
  60 ADD_THIS_ENGRAVER(Lyric_engraver);