src/voice.cc

   1 /*
   2   voice.cc -- implement Voice
   3
   4   source file of the LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "debug.hh"
  10 #include "voice.hh"
  11 #include "musicalrequest.hh"
  12 #include "commandrequest.hh"
  13 #include "midi-item.hh"
  14 #include "midi-stream.hh"
  15 #include "voice-element.hh"
  16
  17 void
  18 Voice::set_default_group(String s)
  19 {
  20     elts.top()->set_default_group(s);
  21 }
  22
  23 bool
  24 Voice::find_plet_start_bo(char c, Moment& moment_r)
  25 {
  26     for (iter_bot(elts, i); i.ok(); i--)
  27         if ( i->find_plet_start_bo(c, moment_r) )
  28             return true;
  29     return false;
  30 }
  31
  32 void
  33 Voice::set_plet_backwards(Moment& now_moment_r, Moment until_moment,
  34                           int num_i, int den_i)
  35 {
  36     for (iter_bot(elts, i); i.ok(); i--)
  37         if ( now_moment_r <= until_moment )
  38             i->set_plet_backwards(now_moment_r, until_moment, num_i, den_i);
  39         else
  40             return;
  41 }
  42
  43 Voice::Voice(Voice const&src)
  44 {
  45     for (iter_top(src.elts, i); i.ok(); i++)
  46         add(new Voice_element(**i));
  47
  48     start = src.start;
  49 }
  50
  51 Voice::Voice()
  52 {
  53     start = 0;
  54 }
  55
  56 void
  57 Voice::add(Voice_element*v)
  58 {
  59     v->voice_l_ = this;
  60     elts.bottom().add(v);
  61 }
  62
  63 void
  64 Voice::print() const
  65 {
  66 #ifndef NPRINT
  67     mtor << "Voice { start: "<< start<<eol;
  68     for (iter_top(elts,i); i.ok(); i++)
  69         i->print();
  70     mtor << "}\n";
  71 #endif
  72 }
  73
  74 Moment
  75 Voice::last() const
  76 {
  77     Moment l =0;
  78     if (elts.size())
  79         l = start;
  80
  81     for (iter_top(elts,i); i.ok(); i++)
  82         l  += i->duration;
  83     return l;
  84 }
  85