lily/score.cc

   1 /*
   2   score.cc -- implement Score
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
   7 */
   8
   9 #include "score.hh"
  10
  11 #include <cstdio>
  12
  13 using namespace std;
  14
  15 #include "book.hh"
  16 #include "cpu-timer.hh"
  17 #include "global-context.hh"
  18 #include "international.hh"
  19 #include "lily-parser.hh"
  20 #include "lilypond-key.hh"
  21 #include "main.hh"
  22 #include "music.hh"
  23 #include "music.hh"
  24 #include "output-def.hh"
  25 #include "paper-book.hh"
  26 #include "paper-score.hh"
  27 #include "warn.hh"
  28
  29 #include "ly-smobs.icc"
  30
  31 Input *
  32 Score::origin () const
  33 {
  34   return unsmob_input (input_location_);
  35 }
  36
  37
  38 Score::Score ()
  39 {
  40   header_ = SCM_EOL;
  41   music_ = SCM_EOL;
  42   error_found_ = false;
  43   input_location_ = SCM_EOL;
  44   smobify_self ();
  45   input_location_ = make_input (Input ());
  46 }
  47
  48 Score::~Score ()
  49 {
  50 }
  51
  52 IMPLEMENT_SMOBS (Score);
  53 IMPLEMENT_DEFAULT_EQUAL_P (Score);
  54 IMPLEMENT_TYPE_P (Score, "ly:score?");
  55
  56 SCM
  57 Score::mark_smob (SCM s)
  58 {
  59   Score *sc = (Score *) SCM_CELL_WORD_1 (s);
  60
  61   scm_gc_mark (sc->header_);
  62   for (vsize i = sc->defs_.size (); i--;)
  63     scm_gc_mark (sc->defs_[i]->self_scm ());
  64
  65   scm_gc_mark (sc->input_location_);
  66   return sc->music_;
  67 }
  68
  69 int
  70 Score::print_smob (SCM, SCM p, scm_print_state*)
  71 {
  72   scm_puts ("#<Score>", p);
  73
  74   return 1;
  75 }
  76
  77 Score::Score (Score const &s)
  78 {
  79   header_ = SCM_EOL;
  80   music_ = SCM_EOL;
  81   error_found_ = s.error_found_;
  82   input_location_ = SCM_EOL;
  83   smobify_self ();
  84   input_location_ = make_input (*s.origin ());
  85
  86   Music *m = unsmob_music (s.music_);
  87   if (m)
  88     {
  89       Music *mclone = m->clone ();
  90       music_ = mclone->unprotect ();
  91     }
  92   else
  93     music_ = SCM_EOL;
  94
  95   for (vsize i = 0, n = s.defs_.size (); i < n; i++)
  96     {
  97       Output_def *copy = s.defs_[i]->clone ();
  98       defs_.push_back (copy);
  99       copy->unprotect ();
 100     }
 101   header_ = ly_make_anonymous_module (false);
 102   if (ly_is_module (s.header_))
 103     ly_module_copy (header_, s.header_);
 104 }
 105
 106 void
 107 default_rendering (SCM music, SCM outdef,
 108                    SCM book_outputdef,
 109                    SCM header,
 110                    SCM outname,
 111                    SCM key)
 112 {
 113   SCM scaled_def = outdef;
 114   SCM scaled_bookdef = book_outputdef;
 115
 116   Output_def *bpd = unsmob_output_def (book_outputdef);
 117
 118   /* ugh.  */
 119   if (bpd->c_variable ("is-paper") == SCM_BOOL_T)
 120     {
 121       Real scale = scm_to_double (bpd->c_variable ("output-scale"));
 122
 123       Output_def *def = scale_output_def (unsmob_output_def (outdef), scale);
 124       Output_def *bdef = scale_output_def (bpd, scale);
 125       def->parent_ = bdef;
 126
 127       scaled_def = def->self_scm ();
 128       scaled_bookdef = bdef->self_scm ();
 129
 130       def->unprotect ();
 131       bdef->unprotect ();
 132     }
 133
 134   SCM context = ly_run_translator (music, scaled_def, key);
 135
 136   SCM output_as_scm = ly_format_output (context);
 137   Music_output *output = unsmob_music_output (output_as_scm);
 138
 139   if (Paper_score *pscore = dynamic_cast<Paper_score *> (output))
 140     {
 141       /* ugh, this is strange, Paper_book without a Book object. */
 142       Paper_book *paper_book = new Paper_book ();
 143       paper_book->header_ = header;
 144       paper_book->paper_ = unsmob_output_def (scaled_bookdef);
 145
 146       if (ly_is_module (header))
 147         paper_book->add_score (header);
 148
 149       paper_book->add_score (pscore->self_scm ());
 150       paper_book->classic_output (outname);
 151       paper_book->unprotect ();
 152     }
 153
 154   scm_remember_upto_here_1 (scaled_def);
 155   scm_remember_upto_here_1 (output_as_scm);
 156   scm_remember_upto_here_1 (scaled_bookdef);
 157 }
 158
 159 /*
 160   Format score, return list of Music_output objects.
 161
 162   LAYOUTBOOK should be scaled already.
 163 */
 164 SCM
 165 Score::book_rendering (Output_def *layoutbook,
 166                        Output_def *default_def,
 167                        Object_key *book_key)
 168 {
 169   if (error_found_)
 170     return SCM_EOL;
 171
 172   SCM scaled_bookdef = SCM_EOL;
 173   Real scale = 1.0;
 174
 175   if (layoutbook && layoutbook->c_variable ("is-paper") == SCM_BOOL_T)
 176     scale = scm_to_double (layoutbook->c_variable ("output-scale"));
 177
 178   SCM outputs = SCM_EOL;
 179   SCM *tail = &outputs;
 180
 181   int outdef_count = defs_.size ();
 182
 183   Object_key *key = new Lilypond_general_key (book_key, user_key_, 0);
 184   SCM scm_key = key->unprotect ();
 185
 186   for (int i = 0; !i || i < outdef_count; i++)
 187     {
 188       Output_def *def = outdef_count ? defs_[i] : default_def;
 189       SCM scaled = SCM_EOL;
 190
 191       if (def->c_variable ("is-layout") == SCM_BOOL_T)
 192         {
 193           def = scale_output_def (def, scale);
 194           def->parent_ = layoutbook;
 195
 196           scaled = def->unprotect ();
 197         }
 198
 199       /* TODO: fix or junk --no-layout.  */
 200       SCM context = ly_run_translator (music_, def->self_scm (), scm_key);
 201       if (dynamic_cast<Global_context *> (unsmob_context (context)))
 202         {
 203           SCM s = ly_format_output (context);
 204
 205           *tail = scm_cons (s, SCM_EOL);
 206           tail = SCM_CDRLOC (*tail);
 207         }
 208
 209       scm_remember_upto_here_1 (scaled);
 210     }
 211
 212   scm_remember_upto_here_1 (scm_key);
 213   scm_remember_upto_here_1 (scaled_bookdef);
 214   return outputs;
 215 }
 216
 217 void
 218 Score::set_music (SCM music)
 219 {
 220   if (unsmob_music (music_))
 221     {
 222       unsmob_music (music)->origin ()->error (_ ("already have music in score"));
 223       unsmob_music (music_)->origin ()->error (_ ("this is the previous music"));
 224     }
 225   Music *m = unsmob_music (music);
 226   if (m && to_boolean (m->get_property ("error-found")))
 227     {
 228       m->origin ()->error (_ ("errors found, ignoring music expression"));
 229
 230       this->error_found_ = this->error_found_
 231         || to_boolean (m->get_property ("error-found"));
 232     }
 233
 234   if (this->error_found_)
 235     this->music_ = SCM_EOL;
 236   else
 237     this->music_ = music;
 238 }
 239
 240 SCM
 241 Score::get_music () const
 242 {
 243   return music_;
 244 }
 245
 246 void
 247 Score::add_output_def (Output_def *def)
 248 {
 249   defs_.push_back (def);
 250 }