lily/book.cc

   1 /*
   2   book.cc -- implement Book
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9 #include "book.hh"
  10
  11 #include <cstdio>
  12
  13 #include "lilypond-key.hh"
  14 #include "global-context.hh"
  15 #include "main.hh"
  16 #include "music-iterator.hh"
  17 #include "music-output.hh"
  18 #include "music.hh"
  19 #include "output-def.hh"
  20 #include "paper-book.hh"
  21 #include "score.hh"
  22 #include "stencil.hh"
  23 #include "text-interface.hh"
  24 #include "warn.hh"
  25
  26 #include "performance.hh"
  27 #include "paper-score.hh"
  28
  29 #include "ly-smobs.icc"
  30
  31 Book::Book ()
  32   : Input ()
  33 {
  34   paper_ = 0;
  35   header_ = SCM_EOL;
  36   scores_ = SCM_EOL;
  37   smobify_self ();
  38 }
  39
  40 Book::~Book ()
  41 {
  42 }
  43
  44 IMPLEMENT_SMOBS (Book);
  45 IMPLEMENT_DEFAULT_EQUAL_P (Book);
  46
  47 SCM
  48 Book::mark_smob (SCM s)
  49 {
  50   Book *book = (Book *) SCM_CELL_WORD_1 (s);
  51
  52 #if 0
  53   if (book->key_)
  54     scm_gc_mark (book->key_->self_scm ());
  55 #endif
  56
  57   if (book->paper_)
  58     scm_gc_mark (book->paper_->self_scm ());
  59   scm_gc_mark (book->scores_);
  60
  61   return book->header_;
  62 }
  63
  64 int
  65 Book::print_smob (SCM, SCM p, scm_print_state*)
  66 {
  67   scm_puts ("#<Book>", p);
  68   return 1;
  69 }
  70
  71 void
  72 Book::add_score (SCM s)
  73 {
  74   scores_ = scm_cons (s, scores_);
  75 }
  76
  77 /* This function does not dump the output; outname is required eg. for
  78    dumping header fields.  */
  79 Paper_book *
  80 Book::process (String outname, Output_def *default_def)
  81 {
  82   for (SCM s = scores_; s != SCM_EOL; s = scm_cdr (s))
  83     if (Score *score = unsmob_score (scm_car (s)))
  84       if (score->error_found_)
  85         return 0;
  86
  87   Paper_book *paper_book = new Paper_book ();
  88   Real scale = scm_to_double (paper_->c_variable ("outputscale"));
  89   Output_def *scaled_bookdef = scale_output_def (paper_, scale);
  90
  91   Object_key *key = new Lilypond_general_key (0, user_key_, 0);
  92   SCM scm_key = key->self_scm ();
  93   scm_gc_unprotect_object (scm_key);
  94
  95   paper_book->paper_ = scaled_bookdef;
  96   scm_gc_unprotect_object (scaled_bookdef->self_scm ());
  97
  98   paper_book->header_ = header_;
  99
 100   /* Render in order of parsing.  */
 101   int midi_count = 0;
 102   for (SCM s = scm_reverse (scores_); s != SCM_EOL; s = scm_cdr (s))
 103     {
 104       if (Score *score = unsmob_score (scm_car (s)))
 105         {
 106           SCM outputs = score
 107             ->book_rendering (paper_book->paper_, default_def, key);
 108
 109           while (scm_is_pair (outputs))
 110             {
 111               Music_output *output = unsmob_music_output (scm_car (outputs));
 112
 113               if (Performance *perf = dynamic_cast<Performance *> (output))
 114                 {
 115                   String fn = outname;
 116                   if (midi_count)
 117                     fn += "-" + to_string (midi_count);
 118
 119                   midi_count ++;
 120                   perf->write_output (fn);
 121                 }
 122               else if (Paper_score *pscore = dynamic_cast<Paper_score *> (output))
 123                 {
 124                   SCM systems = pscore->get_paper_systems ();
 125                   if (ly_c_module_p (score->header_))
 126                     paper_book->add_score (score->header_);
 127                   paper_book->add_score (systems);
 128                 }
 129
 130               outputs = scm_cdr (outputs);
 131             }
 132         }
 133       else if (Text_interface::markup_p (scm_car (s)))
 134         paper_book->add_score (scm_car (s));
 135       else
 136         assert (0);
 137     }
 138
 139   scm_remember_upto_here_1 (scm_key);
 140   return paper_book;
 141 }