lily/timing-engraver.cc

   1 /*
   2   timing-grav.cc -- implement Timing_engraver
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c)  1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9 #include "score-engraver.hh"
  10 #include "timing-engraver.hh"
  11 #include "command-request.hh"
  12 #include "score-element-info.hh"
  13 #include "multi-measure-rest.hh"
  14
  15 ADD_THIS_TRANSLATOR(Timing_engraver);
  16
  17 void
  18 Timing_engraver::do_post_move_processing( )
  19 {
  20   bar_req_l_ = 0;
  21   Timing_translator::do_post_move_processing ();
  22
  23 }
  24
  25 bool
  26 Timing_engraver::do_try_music (Music*m)
  27 {
  28   if (Bar_req  * b= dynamic_cast <Bar_req *> (m))
  29     {
  30       if (bar_req_l_ && !bar_req_l_->equal_b (b)) // huh?
  31         return false;
  32
  33       bar_req_l_ = b;
  34       return true;
  35     }
  36
  37   return Timing_translator::do_try_music (m);
  38 }
  39
  40 /*
  41   TODO make properties of this.
  42  */
  43 String
  44 Timing_engraver::which_bar ()
  45 {
  46   if (!bar_req_l_)
  47     {
  48       if (!now_mom ())
  49         return "|";
  50
  51       SCM nonauto = get_property ("barNonAuto");
  52       if (!to_boolean (nonauto))
  53         {
  54           SCM always = get_property ("barAlways");
  55           if (!measure_position ()
  56               || (to_boolean (always)))
  57             {
  58               SCM def=get_property ("defaultBarType" );
  59               return (gh_string_p (def))? ly_scm2string (def) : "";
  60             }
  61         }
  62       return "";
  63     }
  64   else
  65     {
  66       return bar_req_l_->type_str_;
  67     }
  68 }