lily/book.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 "book.hh"
  21
  22 #include <cstdio>
  23 using namespace std;
  24
  25 #include "main.hh"
  26 #include "music.hh"
  27 #include "output-def.hh"
  28 #include "paper-book.hh"
  29 #include "score.hh"
  30 #include "text-interface.hh"
  31 #include "warn.hh"
  32 #include "performance.hh"
  33 #include "paper-score.hh"
  34 #include "page-marker.hh"
  35
  36 #include "ly-smobs.icc"
  37
  38 Book::Book ()
  39 {
  40   paper_ = 0;
  41   header_ = SCM_EOL;
  42   scores_ = SCM_EOL;
  43   bookparts_ = SCM_EOL;
  44   input_location_ = SCM_EOL;
  45   smobify_self ();
  46
  47   input_location_ = make_input (Input ());
  48 }
  49
  50 Book::Book (Book const &s)
  51 {
  52   paper_ = 0;
  53   header_ = SCM_EOL;
  54   scores_ = SCM_EOL;
  55   bookparts_ = SCM_EOL;
  56   input_location_ = SCM_EOL;
  57   smobify_self ();
  58
  59   if (s.paper_)
  60     {
  61       paper_ = s.paper_->clone ();
  62       paper_->unprotect ();
  63     }
  64
  65   input_location_ = make_input (*s.origin ());
  66
  67   header_ = ly_make_module (false);
  68   if (ly_is_module (s.header_))
  69     ly_module_copy (header_, s.header_);
  70   SCM *t = &scores_;
  71   for (SCM p = s.scores_; scm_is_pair (p); p = scm_cdr (p))
  72     {
  73       SCM entry = scm_car (p);
  74
  75       if (Score *newscore = unsmob_score (entry))
  76         *t = scm_cons (newscore->clone ()->unprotect (), SCM_EOL);
  77       else if (Page_marker *marker = unsmob_page_marker (entry))
  78         *t = scm_cons (marker->clone ()->unprotect (), SCM_EOL);
  79       else
  80         {
  81           /* This entry is a markup list */
  82           *t = scm_cons (entry, SCM_EOL);
  83         }
  84       t = SCM_CDRLOC (*t);
  85     }
  86
  87   t = &bookparts_;
  88   for (SCM p = s.bookparts_; scm_is_pair (p); p = scm_cdr (p))
  89     {
  90       Book *newpart = unsmob_book (scm_car (p))->clone ();
  91
  92       *t = scm_cons (newpart->self_scm (), SCM_EOL);
  93       t = SCM_CDRLOC (*t);
  94       newpart->unprotect ();
  95     }
  96 }
  97
  98 Input *
  99 Book::origin () const
 100 {
 101   return unsmob_input (input_location_);
 102 }
 103
 104 Book::~Book ()
 105 {
 106 }
 107
 108 IMPLEMENT_SMOBS (Book);
 109 IMPLEMENT_DEFAULT_EQUAL_P (Book);
 110
 111 SCM
 112 Book::mark_smob (SCM s)
 113 {
 114   Book *book = (Book *) SCM_CELL_WORD_1 (s);
 115
 116   if (book->paper_)
 117     scm_gc_mark (book->paper_->self_scm ());
 118   scm_gc_mark (book->scores_);
 119   scm_gc_mark (book->bookparts_);
 120   scm_gc_mark (book->input_location_);
 121
 122   return book->header_;
 123 }
 124
 125 int
 126 Book::print_smob (SCM, SCM p, scm_print_state*)
 127 {
 128   scm_puts ("#<Book>", p);
 129   return 1;
 130 }
 131
 132 void
 133 Book::add_score (SCM s)
 134 {
 135   scores_ = scm_cons (s, scores_);
 136 }
 137
 138 void
 139 Book::set_parent (Book *parent)
 140 {
 141   if (!paper_)
 142     {
 143       paper_ = new Output_def ();
 144       paper_->unprotect ();
 145     }
 146   paper_->parent_ = parent->paper_;
 147   /* Copy the header block of the parent */
 148   if (ly_is_module (parent->header_))
 149     {
 150       SCM tmp_header = ly_make_module (false);
 151       ly_module_copy (tmp_header, parent->header_);
 152       if (ly_is_module (header_))
 153         ly_module_copy (tmp_header, header_);
 154       header_ = tmp_header;
 155     }
 156 }
 157
 158 /* Before an explicit \bookpart is encountered, scores are added to the book.
 159  * But once a bookpart is added, the previous scores shall be collected into
 160  * a new bookpart.
 161  */
 162 void
 163 Book::add_scores_to_bookpart ()
 164 {
 165   if (scm_is_pair (scores_))
 166     {
 167       /* If scores have been added to this book, add them to a child
 168        * book part */
 169       Book *part = new Book;
 170       part->set_parent (this);
 171       part->scores_ = scores_;
 172       bookparts_ = scm_cons (part->self_scm (), bookparts_);
 173       part->unprotect ();
 174       scores_ = SCM_EOL;
 175     }
 176 }
 177
 178 void
 179 Book::add_bookpart (SCM b)
 180 {
 181   add_scores_to_bookpart ();
 182   Book *part = unsmob_book (b);
 183   part->set_parent (this);
 184   bookparts_ = scm_cons (b, bookparts_);
 185 }
 186
 187 bool
 188 Book::error_found ()
 189 {
 190   for (SCM s = scores_; scm_is_pair (s); s = scm_cdr (s))
 191     if (Score *score = unsmob_score (scm_car (s)))
 192       if (score->error_found_)
 193         return true;
 194
 195   for (SCM part = bookparts_; scm_is_pair (part); part = scm_cdr (part))
 196     if (Book *bookpart = unsmob_book (scm_car (part)))
 197       if (bookpart->error_found ())
 198         return true;
 199
 200   return false;
 201 }
 202
 203 Paper_book *
 204 Book::process (Output_def *default_paper,
 205                Output_def *default_layout)
 206 {
 207   return process (default_paper, default_layout, 0);
 208 }
 209
 210 void
 211 Book::process_bookparts (Paper_book *output_paper_book, Output_def *paper, Output_def *layout)
 212 {
 213   add_scores_to_bookpart ();
 214   for (SCM p = scm_reverse (bookparts_); scm_is_pair (p); p = scm_cdr (p))
 215     {
 216       if (Book *book = unsmob_book (scm_car (p)))
 217         {
 218           Paper_book *paper_book_part = book->process (paper, layout, output_paper_book);
 219           if (paper_book_part)
 220             {
 221               output_paper_book->add_bookpart (paper_book_part->self_scm ());
 222               paper_book_part->unprotect ();
 223             }
 224         }
 225     }
 226   /* In a Paper_book, bookparts are stored in straight order */
 227   output_paper_book->bookparts_ = scm_reverse_x (output_paper_book->bookparts_, SCM_EOL);
 228 }
 229
 230 void
 231 Book::process_score (SCM s, Paper_book *output_paper_book, Output_def *layout)
 232 {
 233   if (Score *score = unsmob_score (scm_car (s)))
 234     {
 235       SCM outputs = score
 236         ->book_rendering (output_paper_book->paper_, layout);
 237
 238       while (scm_is_pair (outputs))
 239         {
 240           Music_output *output = unsmob_music_output (scm_car (outputs));
 241
 242           if (Performance *perf = dynamic_cast<Performance *> (output))
 243             output_paper_book->add_performance (perf->self_scm ());
 244           else if (Paper_score *pscore = dynamic_cast<Paper_score *> (output))
 245             {
 246               if (ly_is_module (score->get_header ()))
 247                 output_paper_book->add_score (score->get_header ());
 248               output_paper_book->add_score (pscore->self_scm ());
 249             }
 250
 251           outputs = scm_cdr (outputs);
 252         }
 253     }
 254   else if (Text_interface::is_markup_list (scm_car (s))
 255            || unsmob_page_marker (scm_car (s)))
 256     output_paper_book->add_score (scm_car (s));
 257   else
 258     assert (0);
 259
 260 }
 261
 262 /* Concatenate all score or book part outputs into a Paper_book
 263  */
 264 Paper_book *
 265 Book::process (Output_def *default_paper,
 266                Output_def *default_layout,
 267                Paper_book *parent_part)
 268 {
 269   Output_def *paper = paper_ ? paper_ : default_paper;
 270
 271   /* If top book, recursively check score errors */
 272   if (!parent_part && error_found ())
 273     return 0;
 274
 275   if (!paper)
 276     return 0;
 277
 278   Paper_book *paper_book = new Paper_book ();
 279   Real scale = scm_to_double (paper->c_variable ("output-scale"));
 280   Output_def *scaled_bookdef = scale_output_def (paper, scale);
 281   paper_book->paper_ = scaled_bookdef;
 282   if (parent_part)
 283     {
 284       paper_book->parent_ = parent_part;
 285       paper_book->paper_->parent_ = parent_part->paper_;
 286     }
 287   paper_book->header_ = header_;
 288   scaled_bookdef->unprotect ();
 289
 290   if (scm_is_pair (bookparts_))
 291     {
 292       /* Process children book parts */
 293       process_bookparts (paper_book, paper, default_layout);
 294     }
 295   else
 296     {
 297       paper_book->paper_->normalize ();
 298       /* Process scores */
 299       /* Render in order of parsing.  */
 300       for (SCM s = scm_reverse (scores_); scm_is_pair (s); s = scm_cdr (s))
 301         {
 302           process_score (s, paper_book, default_layout);
 303         }
 304     }
 305
 306   return paper_book;
 307 }