lily/voice-element.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(req_p_list_,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(req_p_list_,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     req_p_list_.bottom().add(r);
  48 }
  49
  50
  51 Voice_element::Voice_element()
  52 {
  53     voice_C_ = 0;
  54     duration_ = 0;
  55 }
  56
  57 Voice_element::Voice_element(Voice_element const&src)
  58     : Input(src)
  59 {
  60
  61     voice_C_=0;
  62     for (iter_top(src.req_p_list_, i); i.ok(); i++)
  63         add(i->clone());
  64
  65 }
  66 bool
  67 Voice_element::find_plet_start_b(char c, Moment& moment_r)// b unused?
  68 {
  69     assert( c == ']' );
  70     moment_r += duration_;
  71     for ( PCursor<Request*> i( req_p_list_.top() ); i.ok(); i++ ) {
  72         if (i->beam() && i->beam()->spantype == Span_req::START )
  73             return true;
  74     }
  75     return false;
  76 }
  77
  78 void
  79 Voice_element::set_default_group(String s)
  80 {
  81     for (iter_top(req_p_list_, i); i.ok(); i++)
  82         if (i->command() &&i->command()->groupchange())
  83             return ;
  84     Group_change_req *greq = new Group_change_req;
  85     greq->newgroup_str_ = s;
  86     add(greq);
  87 }
  88
  89 void
  90 Voice_element::set_plet_backwards(Moment& now_moment_r,
  91                                   Moment until_moment, int num_i, int den_i)
  92 {
  93     now_moment_r += duration_;
  94     if ( now_moment_r > until_moment )
  95         return;
  96     for ( PCursor<Request*> i( req_p_list_.top() ); i.ok(); i++ ) {
  97         if (i->beam() && i->beam()->spantype == Span_req::START )
  98             i->beam()->nplet = den_i;
  99         if (i->rhythmic()) {
 100             i->rhythmic()->duration_.plet_.type_i_ = den_i;
 101             i->rhythmic()->duration_.plet_.iso_i_  = num_i;
 102
 103         }
 104     }
 105 }