lily/lyric-engraver.cc

   1 /*
   2   lyric-engraver.cc -- implement Lyric_engraver
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c)  1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7   Jan Nieuwenhuizen <janneke@gnu.org>
   8 */
   9
  10 #include "lyric-engraver.hh"
  11 #include "musical-request.hh"
  12 #include "text-item.hh"
  13 #include "paper-def.hh"
  14 #include "lookup.hh"
  15
  16 ADD_THIS_TRANSLATOR (Lyric_engraver);
  17
  18
  19 Lyric_engraver::Lyric_engraver()
  20 {
  21   text_p_ =0;
  22   req_l_ =0;
  23 }
  24
  25 bool
  26 Lyric_engraver::do_try_music (Music*r)
  27 {
  28   if (Lyric_req* l = dynamic_cast <Lyric_req *> (r))
  29     {
  30       if (req_l_)
  31         return false;
  32       req_l_ =l;
  33       return true;
  34     }
  35   return false;
  36 }
  37
  38 void
  39 Lyric_engraver::do_process_requests()
  40 {
  41   if (req_l_)
  42     {
  43       text_p_=  new Text_item;
  44       text_p_->text_str_ = req_l_->text_str_;
  45       text_p_->text_str_ += " ";        // ugh.
  46
  47       Scalar style = get_property ("textStyle", 0);
  48       if (style.length_i ())
  49         text_p_->style_str_ = style;
  50
  51       text_p_->set_elt_property (non_rhythmic_scm_sym, SCM_BOOL_T);
  52
  53       announce_element (Score_element_info (text_p_, req_l_));
  54     }
  55 }
  56
  57 void
  58 Lyric_engraver::do_pre_move_processing()
  59 {
  60   if (text_p_)
  61     {
  62       typeset_element (text_p_);
  63       text_p_ =0;
  64     }
  65 }
  66
  67 void
  68 Lyric_engraver::do_post_move_processing ()
  69 {
  70   req_l_ =0;
  71 }
  72