lily/score.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
   5
   6   LilyPond is free software: you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published by
   8   the Free Software Foundation, either version 3 of the License, or
   9   (at your option) any later version.
  10
  11   LilyPond is distributed in the hope that it will be useful,
  12   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14   GNU General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "score.hh"
  21
  22 #include <cstdio>
  23
  24 using namespace std;
  25
  26 #include "book.hh"
  27 #include "cpu-timer.hh"
  28 #include "global-context.hh"
  29 #include "international.hh"
  30 #include "lily-parser.hh"
  31 #include "main.hh"
  32 #include "music.hh"
  33 #include "music.hh"
  34 #include "output-def.hh"
  35 #include "paper-book.hh"
  36 #include "paper-score.hh"
  37 #include "warn.hh"
  38
  39 #include "ly-smobs.icc"
  40
  41 Input *
  42 Score::origin () const
  43 {
  44   return unsmob_input (input_location_);
  45 }
  46
  47
  48 Score::Score ()
  49 {
  50   header_ = SCM_EOL;
  51   music_ = SCM_EOL;
  52   input_location_ = SCM_EOL;
  53
  54   error_found_ = false;
  55
  56   smobify_self ();
  57   input_location_ = make_input (Input ());
  58 }
  59
  60 Score::~Score ()
  61 {
  62 }
  63
  64 IMPLEMENT_SMOBS (Score);
  65 IMPLEMENT_DEFAULT_EQUAL_P (Score);
  66 IMPLEMENT_TYPE_P (Score, "ly:score?");
  67
  68 SCM
  69 Score::mark_smob (SCM s)
  70 {
  71   Score *sc = (Score *) SCM_CELL_WORD_1 (s);
  72
  73   scm_gc_mark (sc->header_);
  74   for (vsize i = sc->defs_.size (); i--;)
  75     scm_gc_mark (sc->defs_[i]->self_scm ());
  76
  77   scm_gc_mark (sc->input_location_);
  78   return sc->music_;
  79 }
  80
  81 int
  82 Score::print_smob (SCM, SCM p, scm_print_state*)
  83 {
  84   scm_puts ("#<Score>", p);
  85
  86   return 1;
  87 }
  88
  89 Score::Score (Score const &s)
  90 {
  91   header_ = SCM_EOL;
  92   music_ = SCM_EOL;
  93   input_location_ = SCM_EOL;
  94   error_found_ = s.error_found_;
  95
  96   smobify_self ();
  97   input_location_ = make_input (*s.origin ());
  98
  99   Music *m = unsmob_music (s.music_);
 100   if (m)
 101     {
 102       Music *mclone = m->clone ();
 103       music_ = mclone->unprotect ();
 104     }
 105   else
 106     music_ = SCM_EOL;
 107
 108   for (vsize i = 0, n = s.defs_.size (); i < n; i++)
 109     {
 110       Output_def *copy = s.defs_[i]->clone ();
 111       defs_.push_back (copy);
 112       copy->unprotect ();
 113     }
 114   header_ = ly_make_module (false);
 115   if (ly_is_module (s.header_))
 116     ly_module_copy (header_, s.header_);
 117 }
 118
 119
 120 /*
 121   Format score, return list of Music_output objects.
 122
 123   LAYOUTBOOK should be scaled already.
 124 */
 125 SCM
 126 Score::book_rendering (Output_def *layoutbook,
 127                        Output_def *default_def)
 128 {
 129   if (error_found_)
 130     return SCM_EOL;
 131
 132   SCM scaled_bookdef = SCM_EOL;
 133   Real scale = 1.0;
 134
 135   if (layoutbook && layoutbook->c_variable ("is-paper") == SCM_BOOL_T)
 136     scale = scm_to_double (layoutbook->c_variable ("output-scale"));
 137
 138   SCM outputs = SCM_EOL;
 139   SCM *tail = &outputs;
 140
 141   int outdef_count = defs_.size ();
 142
 143   for (int i = 0; !i || i < outdef_count; i++)
 144     {
 145       Output_def *def = outdef_count ? defs_[i] : default_def;
 146       SCM scaled = SCM_EOL;
 147
 148       if (def->c_variable ("is-layout") == SCM_BOOL_T)
 149         {
 150           def = scale_output_def (def, scale);
 151           def->parent_ = layoutbook;
 152
 153           scaled = def->unprotect ();
 154         }
 155
 156       /* TODO: fix or junk --no-layout.  */
 157       SCM context = ly_run_translator (music_, def->self_scm ());
 158       if (dynamic_cast<Global_context *> (unsmob_context (context)))
 159         {
 160           SCM s = ly_format_output (context);
 161
 162           *tail = scm_cons (s, SCM_EOL);
 163           tail = SCM_CDRLOC (*tail);
 164         }
 165
 166       scm_remember_upto_here_1 (scaled);
 167     }
 168
 169   scm_remember_upto_here_1 (scaled_bookdef);
 170   return outputs;
 171 }
 172
 173 void
 174 Score::set_music (SCM music)
 175 {
 176   if (unsmob_music (music_))
 177     {
 178       unsmob_music (music)->origin ()->error (_ ("already have music in score"));
 179       unsmob_music (music_)->origin ()->error (_ ("this is the previous music"));
 180     }
 181   Music *m = unsmob_music (music);
 182   if (m && to_boolean (m->get_property ("error-found")))
 183     {
 184       m->origin ()->error (_ ("errors found, ignoring music expression"));
 185
 186       this->error_found_ = this->error_found_
 187         || to_boolean (m->get_property ("error-found"));
 188     }
 189
 190   if (this->error_found_)
 191     this->music_ = SCM_EOL;
 192   else
 193     this->music_ = music;
 194 }
 195
 196 SCM
 197 Score::get_music () const
 198 {
 199   return music_;
 200 }
 201
 202 void
 203 Score::add_output_def (Output_def *def)
 204 {
 205   defs_.push_back (def);
 206 }
 207
 208 SCM
 209 Score::get_header () const
 210 {
 211   return header_;
 212 }
 213
 214 void
 215 Score::set_header (SCM module)
 216 {
 217   assert (ly_is_module (module));
 218   header_ = module;
 219 }