lily/voice-elt.cc

   1 /*
   2   voice-elt.cc -- implement Voice_element
   3
   4   source file of the 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 "voice-element.hh"
  14 #include "musical-request.hh"
  15 #include "command-request.hh"
  16
  17
  18 void
  19 Voice_element::transpose(Melodic_req const&d)const
  20 {
  21     for (iter_top(reqs,i); i.ok(); i++) {
  22         i->transpose(d);
  23       }
  24 }
  25
  26 void
  27 Voice_element::print() const
  28 {
  29 #ifndef NPRINT
  30     mtor << "voice_element { dur :"<< duration_ <<"\n";
  31     for (iter_top(reqs,rc); rc.ok(); rc++) {
  32         rc->print();
  33     }
  34     mtor << "}\n";
  35 #endif
  36 }
  37
  38 void
  39 Voice_element::add(Request*r)
  40 {
  41     if (r->duration()) {
  42         assert (!duration_  || duration_ == r->duration());
  43         duration_ = r->duration();
  44     }
  45
  46     r->elt_l_ = this;
  47     reqs.bottom().add(r);
  48 }
  49
  50
  51 Voice_element::Voice_element()
  52 {
  53     voice_l_ = 0;
  54     duration_ = 0;
  55     defined_ch_C_ = 0;
  56 }
  57
  58 Voice_element::Voice_element(Voice_element const&src)
  59 {
  60     defined_ch_C_ = src.defined_ch_C_;
  61
  62     voice_l_=0;
  63     for (iter_top(src.reqs, i); i.ok(); i++)
  64         add(i->clone());
  65
  66 }
  67 bool
  68 Voice_element::find_plet_start_b(char c, Moment& moment_r)
  69 {
  70     assert( c == ']' );
  71     moment_r += duration_;
  72     for ( PCursor<Request*> i( reqs.top() ); i.ok(); i++ ) {
  73         if (i->beam() && i->beam()->spantype == Span_req::START )
  74             return true;
  75     }
  76     return false;
  77 }
  78
  79 void
  80 Voice_element::set_default_group(String s)
  81 {
  82     for (iter_top(reqs, i); i.ok(); i++)
  83         if (i->groupchange())
  84             return ;
  85     Group_change_req *greq = new Group_change_req;
  86     greq->newgroup_str_ = s;
  87     add(greq);
  88 }
  89
  90 void
  91 Voice_element::set_plet_backwards(Moment& now_moment_r,
  92                                   Moment until_moment, int num_i, int den_i)
  93 {
  94     now_moment_r += duration_;
  95     if ( now_moment_r > until_moment )
  96         return;
  97     for ( PCursor<Request*> i( reqs.top() ); i.ok(); i++ ) {
  98         if (i->beam() && i->beam()->spantype == Span_req::START )
  99             i->beam()->nplet = den_i;
 100         if (i->rhythmic()) {
 101             i->rhythmic()->duration_.plet_.type_i_ = den_i;
 102             i->rhythmic()->duration_.plet_.iso_i_  = num_i;
 103
 104         }
 105     }
 106 }