lily/repeated-music.cc

   1 /*
   2   new-repeated-music.cc --  implement Repeated_music
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7
   8  */
   9
  10 #include "new-repeated-music.hh"
  11 #include "music-list.hh"
  12 #include "musical-pitch.hh"
  13 #include "debug.hh"
  14
  15 Repeated_music::Repeated_music(Music *beg, int times, Music_sequence * alts)
  16 {
  17   repeat_body_p_ = beg;
  18   fold_b_ = false;
  19   repeats_i_ = times;
  20   alternatives_p_ = alts;
  21   semi_fold_b_ = true;
  22   if (alts)
  23     alts->music_p_list_p_->truncate (times);
  24 }
  25
  26 Repeated_music::Repeated_music (Repeated_music const &s)
  27   : Music (s)
  28 {
  29   repeats_i_ = s.repeats_i_;
  30   fold_b_ = s.fold_b_;
  31   semi_fold_b_ = s.semi_fold_b_;
  32
  33   repeat_body_p_ = s.repeat_body_p_ ? s.repeat_body_p_->clone () : 0;
  34   alternatives_p_ = s.alternatives_p_
  35     ? dynamic_cast<Music_sequence*> (s.alternatives_p_->clone ()):0;
  36 }
  37
  38 Repeated_music::~Repeated_music ()
  39 {
  40   delete repeat_body_p_;
  41   delete alternatives_p_;
  42 }
  43
  44 void
  45 Repeated_music::do_print () const
  46 {
  47 #ifndef NPRINT
  48   DOUT << "Fold = " << fold_b_ << " reps: " << repeats_i_;
  49
  50   if (repeat_body_p_)
  51     repeat_body_p_->print();
  52
  53   if (alternatives_p_)
  54     alternatives_p_->print();
  55 #endif
  56 }
  57
  58 Musical_pitch
  59 Repeated_music::to_relative_octave (Musical_pitch p)
  60 {
  61   if (repeat_body_p_)
  62     p = repeat_body_p_->to_relative_octave (p);
  63
  64   if (alternatives_p_)
  65     p = alternatives_p_->do_relative_octave (p, true);
  66   return p;
  67 }
  68
  69 Music_iterator*
  70 Repeated_music::to_rhythm (Music_iterator* r)
  71 {
  72   if (repeat_body_p_)
  73     r = repeat_body_p_->to_rhythm (r);
  74
  75   if (alternatives_p_)
  76     r = alternatives_p_->do_rhythm (r);
  77   return r;
  78 }
  79
  80
  81 void
  82 Repeated_music::transpose (Musical_pitch p)
  83 {
  84   if (repeat_body_p_)
  85     repeat_body_p_->transpose (p);
  86
  87   if (alternatives_p_)
  88     alternatives_p_->transpose (p);
  89 }
  90
  91 void
  92 Repeated_music::compress (Moment p)
  93 {
  94   if (repeat_body_p_)
  95     repeat_body_p_->compress (p);
  96
  97   if (alternatives_p_)
  98     alternatives_p_->compress (p);
  99 }
 100
 101 Moment
 102 Repeated_music::alternatives_length_mom () const
 103 {
 104   if (!alternatives_p_ )
 105     return 0;
 106
 107   if  (fold_b_)
 108     alternatives_p_->maximum_length ();
 109
 110   Moment m =0;
 111   int done =0;
 112   Cons<Music> *p = alternatives_p_->music_p_list_p_->head_;
 113   while (p && done < repeats_i_)
 114     {
 115       m = m + p->car_->length_mom ();
 116       done ++;
 117       if (repeats_i_ - done < alternatives_p_->length_i ())
 118         p = p->next_;
 119     }
 120   return m;
 121 }
 122
 123 Moment
 124 Repeated_music::length_mom () const
 125 {
 126   Moment m =0;
 127   if (fold_b_)
 128     {
 129       if (repeat_body_p_)
 130         m += repeat_body_p_->length_mom ();
 131     }
 132   else
 133     {
 134       Moment beg = (repeat_body_p_) ? repeat_body_p_->length_mom () : Rational(0);
 135       if (!semi_fold_b_)
 136         beg *=  Rational (repeats_i_);
 137       m += beg;
 138     }
 139
 140   m += alternatives_length_mom ();
 141   return m;
 142 }
 143