lily/voice.cc

   1 /*
   2   voice.cc -- implement Voice
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "proto.hh"
  10 #include "plist.hh"
  11 #include "debug.hh"
  12 #include "voice.hh"
  13 #include "musical-request.hh"
  14 #include "command-request.hh"
  15 #include "midi-item.hh"
  16 #include "midi-stream.hh"
  17 #include "voice-element.hh"
  18
  19 void
  20 Voice::transpose(Melodic_req const & d)const
  21 {
  22      for (iter_bot(elts_, i); i.ok(); i--)
  23         i->transpose(d);
  24 }
  25
  26 void
  27 Voice::set_default_group(String s)
  28 {
  29     elts_.top()->set_default_group(s);
  30 }
  31
  32 Voice::Voice(Voice const&src)
  33 {
  34     for (iter_top(src.elts_, i); i.ok(); i++)
  35         add(new Voice_element(**i));
  36
  37     start_ = src.start_;
  38 }
  39
  40 Voice::Voice()
  41 {
  42     start_ = 0;
  43 }
  44
  45 void
  46 Voice::add(Voice_element*v)
  47 {
  48     v->voice_C_ = this;
  49     elts_.bottom().add(v);
  50 }
  51
  52 void
  53 Voice::print() const
  54 {
  55 #ifndef NPRINT
  56     mtor << "Voice { start_: "<< start_<<eol;
  57     for (iter_top(elts_,i); i.ok(); i++)
  58         i->print();
  59     mtor << "}\n";
  60 #endif
  61 }
  62
  63 /**
  64    @return The moment at which last element stops.
  65  */
  66 Moment
  67 Voice::last() const
  68 {
  69     Moment l =0;
  70     if (elts_.size())
  71         l = start_;
  72
  73     for (iter_top(elts_,i); i.ok(); i++)
  74         l  += i->duration_;
  75     return l;
  76 }
  77