lily/score.cc

   1 /*
   2   score.cc -- implement Score
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997--2009 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 "main.hh"
  21 #include "music.hh"
  22 #include "music.hh"
  23 #include "output-def.hh"
  24 #include "paper-book.hh"
  25 #include "paper-score.hh"
  26 #include "warn.hh"
  27
  28 #include "ly-smobs.icc"
  29
  30 Input *
  31 Score::origin () const
  32 {
  33   return unsmob_input (input_location_);
  34 }
  35
  36
  37 Score::Score ()
  38 {
  39   header_ = SCM_EOL;
  40   music_ = SCM_EOL;
  41   input_location_ = SCM_EOL;
  42
  43   error_found_ = false;
  44
  45   smobify_self ();
  46   input_location_ = make_input (Input ());
  47 }
  48
  49 Score::~Score ()
  50 {
  51 }
  52
  53 IMPLEMENT_SMOBS (Score);
  54 IMPLEMENT_DEFAULT_EQUAL_P (Score);
  55 IMPLEMENT_TYPE_P (Score, "ly:score?");
  56
  57 SCM
  58 Score::mark_smob (SCM s)
  59 {
  60   Score *sc = (Score *) SCM_CELL_WORD_1 (s);
  61
  62   scm_gc_mark (sc->header_);
  63   for (vsize i = sc->defs_.size (); i--;)
  64     scm_gc_mark (sc->defs_[i]->self_scm ());
  65
  66   scm_gc_mark (sc->input_location_);
  67   return sc->music_;
  68 }
  69
  70 int
  71 Score::print_smob (SCM, SCM p, scm_print_state*)
  72 {
  73   scm_puts ("#<Score>", p);
  74
  75   return 1;
  76 }
  77
  78 Score::Score (Score const &s)
  79 {
  80   header_ = SCM_EOL;
  81   music_ = SCM_EOL;
  82   input_location_ = SCM_EOL;
  83   error_found_ = s.error_found_;
  84
  85   smobify_self ();
  86   input_location_ = make_input (*s.origin ());
  87
  88   Music *m = unsmob_music (s.music_);
  89   if (m)
  90     {
  91       Music *mclone = m->clone ();
  92       music_ = mclone->unprotect ();
  93     }
  94   else
  95     music_ = SCM_EOL;
  96
  97   for (vsize i = 0, n = s.defs_.size (); i < n; i++)
  98     {
  99       Output_def *copy = s.defs_[i]->clone ();
 100       defs_.push_back (copy);
 101       copy->unprotect ();
 102     }
 103   header_ = ly_make_anonymous_module (false);
 104   if (ly_is_module (s.header_))
 105     ly_module_copy (header_, s.header_);
 106 }
 107
 108
 109 /*
 110   Format score, return list of Music_output objects.
 111
 112   LAYOUTBOOK should be scaled already.
 113 */
 114 SCM
 115 Score::book_rendering (Output_def *layoutbook,
 116                        Output_def *default_def)
 117 {
 118   if (error_found_)
 119     return SCM_EOL;
 120
 121   SCM scaled_bookdef = SCM_EOL;
 122   Real scale = 1.0;
 123
 124   if (layoutbook && layoutbook->c_variable ("is-paper") == SCM_BOOL_T)
 125     scale = scm_to_double (layoutbook->c_variable ("output-scale"));
 126
 127   SCM outputs = SCM_EOL;
 128   SCM *tail = &outputs;
 129
 130   int outdef_count = defs_.size ();
 131
 132   for (int i = 0; !i || i < outdef_count; i++)
 133     {
 134       Output_def *def = outdef_count ? defs_[i] : default_def;
 135       SCM scaled = SCM_EOL;
 136
 137       if (def->c_variable ("is-layout") == SCM_BOOL_T)
 138         {
 139           def = scale_output_def (def, scale);
 140           def->parent_ = layoutbook;
 141
 142           scaled = def->unprotect ();
 143         }
 144
 145       /* TODO: fix or junk --no-layout.  */
 146       SCM context = ly_run_translator (music_, def->self_scm ());
 147       if (dynamic_cast<Global_context *> (unsmob_context (context)))
 148         {
 149           SCM s = ly_format_output (context);
 150
 151           *tail = scm_cons (s, SCM_EOL);
 152           tail = SCM_CDRLOC (*tail);
 153         }
 154
 155       scm_remember_upto_here_1 (scaled);
 156     }
 157
 158   scm_remember_upto_here_1 (scaled_bookdef);
 159   return outputs;
 160 }
 161
 162 void
 163 Score::set_music (SCM music)
 164 {
 165   if (unsmob_music (music_))
 166     {
 167       unsmob_music (music)->origin ()->error (_ ("already have music in score"));
 168       unsmob_music (music_)->origin ()->error (_ ("this is the previous music"));
 169     }
 170   Music *m = unsmob_music (music);
 171   if (m && to_boolean (m->get_property ("error-found")))
 172     {
 173       m->origin ()->error (_ ("errors found, ignoring music expression"));
 174
 175       this->error_found_ = this->error_found_
 176         || to_boolean (m->get_property ("error-found"));
 177     }
 178
 179   if (this->error_found_)
 180     this->music_ = SCM_EOL;
 181   else
 182     this->music_ = music;
 183 }
 184
 185 SCM
 186 Score::get_music () const
 187 {
 188   return music_;
 189 }
 190
 191 void
 192 Score::add_output_def (Output_def *def)
 193 {
 194   defs_.push_back (def);
 195 }
 196
 197 SCM
 198 Score::get_header () const
 199 {
 200   return header_;
 201 }
 202
 203 void
 204 Score::set_header (SCM module)
 205 {
 206   assert (ly_is_module (module));
 207   header_ = module;
 208 }