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--1999 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
  16
  17 ADD_THIS_TRANSLATOR(Timing_engraver);
  18
  19
  20 void
  21 Timing_engraver::do_post_move_processing( )
  22 {
  23   bar_req_l_ = 0;
  24   Timing_translator::do_post_move_processing ();
  25 }
  26
  27 bool
  28 Timing_engraver::do_try_music (Music*m)
  29 {
  30   if (Bar_req  * b= dynamic_cast <Bar_req *> (m))
  31     {
  32       if (bar_req_l_ && bar_req_l_->equal_b (b)) // huh?
  33         return false;
  34
  35       bar_req_l_ = b;
  36       return true;
  37     }
  38
  39   return Timing_translator::do_try_music (m);
  40 }
  41
  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", 0);
  52       if (!gh_boolean_p (nonauto) && gh_scm2bool (nonauto))
  53         {
  54           SCM always = get_property ("barAlways", 0);
  55           if (!measure_position ()
  56               || (gh_boolean_p (always) && gh_scm2bool (always)))
  57             {
  58               SCM def=get_property ("defaultBarType" ,0);
  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 }