mi2mu/mudela-item.cc

   1 //
   2 // mudela-item.cc -- implement Mudela_item
   3 //
   4 // copyright 1997 Jan Nieuwenhuizen <janneke@gnu.org>
   5
   6 #include <assert.h>
   7 #include "mi2mu-global.hh"
   8 #include "string-convert.hh"
   9 #include "duration-convert.hh"
  10 #include "mudela-column.hh"
  11 #include "mudela-item.hh"
  12 #include "mudela-stream.hh"
  13 #include "mudela-score.hh"
  14
  15 Mudela_item::Mudela_item (Mudela_column* mudela_column_l)
  16 {
  17   mudela_column_l_ = mudela_column_l;
  18 }
  19
  20 Mudela_item::~Mudela_item ()
  21 {
  22 }
  23
  24 Moment
  25 Mudela_item::at_mom ()
  26 {
  27   return mudela_column_l_->at_mom ();
  28 }
  29
  30 Moment
  31 Mudela_item::duration_mom ()
  32 {
  33   return Moment (0);
  34 }
  35
  36 void
  37 Mudela_item::output (Mudela_stream& mudela_stream_r)
  38 {
  39   mudela_stream_r << str () << " ";
  40 }
  41
  42 Mudela_key::Mudela_key (int accidentals_i, int minor_i)
  43   : Mudela_item (0)
  44 {
  45   accidentals_i_ = accidentals_i;
  46   minor_i_ = minor_i;
  47 }
  48
  49 String
  50 Mudela_key::str ()
  51 {
  52   int key_i = 0;
  53   if (accidentals_i_ >= 0)
  54     key_i =   ((accidentals_i_ % 7)[ "cgdaebf" ] - 'a' - 2) % 7;
  55   else
  56     key_i =   ((-accidentals_i_ % 7)[ "cfbeadg" ] - 'a' - 2) % 7;
  57
  58   String keyname = (1) // !minor_i_)
  59     ?  to_str ((char)  ((key_i + 2) % 7 + 'A'))
  60     : to_str ((char)  ((key_i + 2 - 2) % 7 + 'a'));
  61   // heu, -2: should be - 1 1/2: A -> fis
  62
  63   return String("\\key " + keyname  + ";\n");
  64 }
  65
  66 String
  67 Mudela_key::notename_str (int pitch_i)
  68 {
  69   // this may seem very smart,
  70   // but it-s only an excuse not to read a notename table
  71
  72   // major scale: do-do
  73   // minor scale: la-la  (= + 5)
  74   static int notename_i_a[ 12 ] = { 0, 0, 1, 1, 2, 3, 3, 4, 4, 5, 5, 6 };
  75   int notename_i = notename_i_a[  (minor_i_ * 5 + pitch_i) % 12 ];
  76
  77   static int accidentals_i_a[ 12 ] = { 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0 };
  78   int accidental_i = accidentals_i_a[ (minor_i_ * 5 + pitch_i) % 12 ];
  79   if (accidental_i &&  (accidentals_i_ < 0))
  80     {
  81       accidental_i = - accidental_i;
  82       notename_i =  (notename_i + 1) % 7;
  83     }
  84
  85   String notename_str = to_str ((char)(((notename_i + 2) % 7) + 'a'));
  86   while  (accidental_i-- > 0)
  87     notename_str += "is";
  88   accidental_i++;
  89   while  (accidental_i++ < 0)
  90     if   ((notename_str == "a") ||  (notename_str == "e"))
  91       notename_str += "s";
  92     else
  93       notename_str += "es";
  94   accidental_i--;
  95
  96   String de_octavate_str = to_str (',',  (Mudela_note::c0_pitch_i_c_ + 11 - pitch_i) / 12);
  97   String octavate_str = to_str ('\'',  (pitch_i - Mudela_note::c0_pitch_i_c_) / 12);
  98   return notename_str +de_octavate_str  + octavate_str;
  99 }
 100
 101 Mudela_time_signature::Mudela_time_signature (int num_i, int den_i, int clocks_4_i, int count_32_i)
 102   : Mudela_item (0)
 103 {
 104   sync_dur_.durlog_i_ = 3;
 105   sync_f_ = 1.0;
 106   if (count_32_i != 8)
 107     warning (_f ("#32 in quarter: %d", count_32_i));
 108   num_i_ = num_i;
 109   den_i_ = den_i;
 110   clocks_1_i_ = clocks_4_i * 4;
 111 }
 112
 113 Moment
 114 Mudela_time_signature::bar_mom ()
 115 {
 116   Duration d;
 117   d.durlog_i_ = den_i_;
 118   return Moment (num_i_) * Duration_convert::dur2_mom (d);
 119 }
 120
 121 int
 122 Mudela_time_signature::clocks_1_i ()
 123 {
 124   return clocks_1_i_;
 125 }
 126
 127 int
 128 Mudela_time_signature::den_i ()
 129 {
 130   return den_i_;
 131 }
 132
 133 int
 134 Mudela_time_signature::num_i ()
 135 {
 136   return num_i_;
 137 }
 138
 139 String
 140 Mudela_time_signature::str ()
 141 {
 142   String str = "\\time "
 143     + to_str (num_i_) + "/" + to_str (1 << den_i_)
 144     + ";\n";
 145   return str;
 146 }
 147
 148
 149 // statics Mudela_note
 150 /*
 151   this switch can be used to write simple plets like
 152   c4*2/3
 153   as
 154   \plet 2/3; c4 \plet 1/1;
 155  */
 156 bool const Mudela_note::simple_plet_b_s = true;
 157
 158 Mudela_note::Mudela_note (Mudela_column* mudela_column_l,
 159                           int channel_i, int pitch_i, int dyn_i)
 160   : Mudela_item (mudela_column_l)
 161 {
 162   // junk dynamics
 163   (void)dyn_i;
 164   channel_i_ = channel_i;
 165   pitch_i_ = pitch_i;
 166   end_column_l_ = 0;
 167 }
 168
 169 Duration
 170 Mudela_note::duration ()
 171 {
 172   assert (end_column_l_);
 173   Moment mom = end_column_l_->at_mom () - at_mom ();
 174   return Duration_convert::mom2_dur (mom);
 175 }
 176
 177 Moment
 178 Mudela_note::duration_mom ()
 179 {
 180   assert (end_column_l_);
 181   return end_column_l_->at_mom () - at_mom ();
 182 }
 183
 184 String
 185 Mudela_note::str ()
 186 {
 187   Duration dur = duration ();
 188   if (dur.durlog_i_ < -10)
 189     return "";
 190
 191   String name_str
 192     = mudela_column_l_->mudela_score_l_->mudela_key_l_->notename_str (pitch_i_);
 193
 194   if (simple_plet_b_s)
 195     return name_str + Duration_convert::dur2_str (dur) + " ";
 196
 197   String str;
 198   //ugh
 199   if (dur.plet_b ())
 200     str += String ("\\[")
 201       + String_convert::i2dec_str (dur.plet_.iso_i_, 0, 0)
 202       + "/"
 203       + String_convert::i2dec_str (dur.plet_.type_i_, 0, 0);
 204
 205   str += name_str;
 206
 207   Duration tmp = dur;
 208   tmp.set_plet (1,1);
 209   str += Duration_convert::dur2_str (tmp);
 210
 211   if (dur.plet_b ())
 212     str += String (" \\]");
 213
 214   /*
 215      note of zero duration is nonsense,
 216      but let's output anyway for convenient debugging
 217   */
 218   if (!duration_mom ())
 219     return String ("\n% ") + str + "\n";
 220
 221   return str + " ";
 222 }
 223
 224 Mudela_skip::Mudela_skip (Mudela_column* mudela_column_l, Moment skip_mom)
 225   : Mudela_item (mudela_column_l)
 226 {
 227   mom_ = skip_mom;
 228 }
 229
 230 Duration
 231 Mudela_skip::duration ()
 232 {
 233   return Duration_convert::mom2_dur (mom_);
 234 }
 235
 236 Moment
 237 Mudela_skip::duration_mom ()
 238 {
 239   return Duration_convert::dur2_mom (duration ());
 240 }
 241
 242 String
 243 Mudela_skip::str ()
 244 {
 245   if (!mom_)
 246     return String ("");
 247
 248   Duration dur = duration ();
 249   if (dur.durlog_i_<-10)
 250     return "";
 251
 252   String str = "\\skip ";
 253   str += Duration_convert::dur2_str (dur) + "; ";
 254
 255   return str;
 256 }
 257
 258 Mudela_tempo::Mudela_tempo (int useconds_per_4_i)
 259   : Mudela_item (0)
 260 {
 261   useconds_per_4_i_ = useconds_per_4_i;
 262   seconds_per_1_mom_ = Moment(useconds_per_4_i_ *4, 1e6);
 263 }
 264
 265 String
 266 Mudela_tempo::str ()
 267 {
 268   String str = "\\tempo 4=";
 269   str += to_str (get_tempo_i (Moment (1, 4)));
 270   str += ";\n";
 271   return str;
 272 }
 273
 274 int
 275 Mudela_tempo::useconds_per_4_i ()
 276 {
 277   return useconds_per_4_i_;
 278 }
 279
 280 int
 281 Mudela_tempo::get_tempo_i (Moment moment)
 282 {
 283   Moment m1 = Moment (60) / moment;
 284   Moment m2 = seconds_per_1_mom_;
 285   return m1 / m2;
 286 }
 287
 288 Mudela_text::Mudela_text (Mudela_text::Type type, String text_str)
 289   : Mudela_item (0)
 290 {
 291   type_ = type;
 292   text_str_ = text_str;
 293 }
 294
 295 String
 296 Mudela_text::str ()
 297 {
 298   if (!text_str_.length_i ()
 299       ||  (text_str_.length_i () != (int)strlen (text_str_.ch_C ())))
 300     return "";
 301
 302   return "% " + text_str_ + "\n";
 303 }