midi2ly/lilypond-voice.cc

   1 //
   2 // lilypond-voice.cc -- implement Lilypond_voice
   3 //
   4 // copyright 1997 Jan Nieuwenhuizen <janneke@gnu.org>
   5
   6 #include "string-convert.hh"
   7 #include "midi2ly-global.hh"
   8 #include "lilypond-column.hh"
   9 #include "lilypond-item.hh"
  10 #include "lilypond-staff.hh"
  11 #include "lilypond-stream.hh"
  12 #include "lilypond-voice.hh"
  13 #include "lilypond-score.hh"
  14
  15 extern Lilypond_score* lilypond_score_l_g;
  16
  17 Lilypond_voice::Lilypond_voice (Lilypond_staff* lilypond_staff_l)
  18 {
  19   lilypond_staff_l_ = lilypond_staff_l;
  20   last_item_l_ =0;
  21   last_note_l_ =0;
  22 }
  23
  24 void
  25 Lilypond_voice::add_item (Lilypond_item* lilypond_item_l)
  26 {
  27   last_item_l_  = lilypond_item_l;
  28   if (Lilypond_note* n = dynamic_cast<Lilypond_note*> (lilypond_item_l))
  29     {
  30       last_note_l_  = n;
  31     }
  32   lilypond_item_l_list_.append (new Cons<Lilypond_item> (lilypond_item_l, 0));
  33 }
  34
  35 /**
  36    analyse pitches to determine clef.
  37  */
  38 String
  39 Lilypond_voice::get_clef () const
  40 {
  41   Lilypond_note * n =0;
  42
  43   for (Cons<Lilypond_item> *cp = lilypond_item_l_list_.head_; !n && cp; cp = cp->next_)
  44     {
  45       n = dynamic_cast<Lilypond_note*> (cp->car_);
  46     }
  47
  48   if (!n)
  49     return "";
  50
  51   int p = n->pitch_i_;
  52
  53   if (p < 56)
  54     return "\\clef \"bass\"\n";
  55   else if (p > 67)
  56     return "\\clef \"treble\"\n";
  57   else
  58     return "";
  59 }
  60
  61 static int const FAIRLY_LONG_VOICE_i = 6;
  62
  63 void
  64 Lilypond_voice::output (Lilypond_stream& lilypond_stream_r)
  65 {
  66   lilypond_stream_r << "{ ";
  67   if (lilypond_item_l_list_.size_i () > FAIRLY_LONG_VOICE_i)
  68     lilypond_stream_r << '\n';
  69
  70
  71   lilypond_stream_r << get_clef () << '\n';
  72
  73   int current_bar_i = 0;
  74   Rational bar_mom = lilypond_staff_l_->lilypond_time_signature_l_->bar_mom ();
  75
  76   for (Cons<Lilypond_item>* i = lilypond_item_l_list_.head_; i; i = i->next_)
  77     {
  78       Rational at_mom = i->car_->lilypond_column_l_->at_mom ();
  79       int bar_i = (int) (at_mom / bar_mom) + 1;
  80       if (bar_i > current_bar_i)
  81         {
  82           if (current_bar_i)
  83             {
  84               if (at_mom == Rational (bar_i - 1) * bar_mom)
  85                 lilypond_stream_r << "|";
  86               lilypond_stream_r << "\n% ";
  87               lilypond_stream_r << String_convert::i2dec_str (bar_i, 0, ' ');
  88               lilypond_stream_r << '\n';
  89             }
  90           LOGOUT (NORMAL_ver) << "[" << bar_i << "]" << flush;
  91           current_bar_i = bar_i;
  92         }
  93
  94       lilypond_stream_r << *i->car_;
  95       if (Lilypond_key* k = dynamic_cast<Lilypond_key*> (i->car_))
  96         lilypond_staff_l_->lilypond_key_l_ = lilypond_score_l_g->lilypond_key_l_ = k;
  97     }
  98
  99   if (lilypond_item_l_list_.size_i () > FAIRLY_LONG_VOICE_i)
 100     lilypond_stream_r << '\n';
 101
 102   lilypond_stream_r << "} ";
 103 }
 104
 105