lily/book.cc

   1 /*
   2   book.cc -- implement Book
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
   7 */
   8
   9 #include "book.hh"
  10
  11 #include <cstdio>
  12 using namespace std;
  13
  14 #include "main.hh"
  15 #include "music.hh"
  16 #include "output-def.hh"
  17 #include "paper-book.hh"
  18 #include "score.hh"
  19 #include "text-interface.hh"
  20 #include "warn.hh"
  21 #include "performance.hh"
  22 #include "paper-score.hh"
  23 #include "page-marker.hh"
  24
  25 #include "ly-smobs.icc"
  26
  27 Book::Book ()
  28 {
  29   paper_ = 0;
  30   header_ = SCM_EOL;
  31   scores_ = SCM_EOL;
  32   input_location_ = SCM_EOL;
  33   smobify_self ();
  34
  35   input_location_ = make_input (Input ());
  36 }
  37
  38 Book::Book (Book const &s)
  39 {
  40   paper_ = 0;
  41   header_ = SCM_EOL;
  42   scores_ = SCM_EOL;
  43   input_location_ = SCM_EOL;
  44   smobify_self ();
  45
  46   if (s.paper_)
  47     {
  48       paper_ = s.paper_->clone ();
  49       paper_->unprotect ();
  50     }
  51
  52   input_location_ = make_input (*s.origin ());
  53
  54   header_ = ly_make_anonymous_module (false);
  55   if (ly_is_module (s.header_))
  56     ly_module_copy (header_, s.header_);
  57
  58   SCM *t = &scores_;
  59   for (SCM p = s.scores_; scm_is_pair (p); p = scm_cdr (p))
  60     {
  61       Score *newscore = unsmob_score (scm_car (p))->clone ();
  62
  63       *t = scm_cons (newscore->self_scm (), SCM_EOL);
  64       t = SCM_CDRLOC (*t);
  65       newscore->unprotect ();
  66     }
  67 }
  68
  69 Input *
  70 Book::origin () const
  71 {
  72   return unsmob_input (input_location_);
  73 }
  74
  75 Book::~Book ()
  76 {
  77 }
  78
  79 IMPLEMENT_SMOBS (Book);
  80 IMPLEMENT_DEFAULT_EQUAL_P (Book);
  81
  82 SCM
  83 Book::mark_smob (SCM s)
  84 {
  85   Book *book = (Book *) SCM_CELL_WORD_1 (s);
  86
  87   if (book->paper_)
  88     scm_gc_mark (book->paper_->self_scm ());
  89   scm_gc_mark (book->scores_);
  90   scm_gc_mark (book->input_location_);
  91
  92   return book->header_;
  93 }
  94
  95 int
  96 Book::print_smob (SCM, SCM p, scm_print_state*)
  97 {
  98   scm_puts ("#<Book>", p);
  99   return 1;
 100 }
 101
 102 void
 103 Book::add_score (SCM s)
 104 {
 105   scores_ = scm_cons (s, scores_);
 106 }
 107
 108
 109 /* Concatenate all score outputs into a Paper_book
 110  */
 111 Paper_book *
 112 Book::process (Output_def *default_paper,
 113                Output_def *default_layout)
 114 {
 115   for (SCM s = scores_; scm_is_pair (s); s = scm_cdr (s))
 116     if (Score *score = unsmob_score (scm_car (s)))
 117       if (score->error_found_)
 118         return 0;
 119
 120   Output_def *paper = paper_ ? paper_ : default_paper;
 121   if (!paper)
 122     return 0;
 123
 124   Paper_book *paper_book = new Paper_book ();
 125   Real scale = scm_to_double (paper->c_variable ("output-scale"));
 126   Output_def *scaled_bookdef = scale_output_def (paper, scale);
 127
 128   paper_book->paper_ = scaled_bookdef;
 129   scaled_bookdef->unprotect ();
 130
 131   paper_book->header_ = header_;
 132
 133   /* Render in order of parsing.  */
 134   for (SCM s = scm_reverse (scores_); scm_is_pair (s); s = scm_cdr (s))
 135     {
 136       if (Score *score = unsmob_score (scm_car (s)))
 137         {
 138           SCM outputs = score
 139             ->book_rendering (paper_book->paper_, default_layout);
 140
 141           while (scm_is_pair (outputs))
 142             {
 143               Music_output *output = unsmob_music_output (scm_car (outputs));
 144
 145               if (Performance *perf = dynamic_cast<Performance *> (output))
 146                 paper_book->add_performance (perf->self_scm ());
 147               else if (Paper_score *pscore = dynamic_cast<Paper_score *> (output))
 148                 {
 149                   if (ly_is_module (score->get_header ()))
 150                     paper_book->add_score (score->get_header ());
 151                   paper_book->add_score (pscore->self_scm ());
 152                 }
 153
 154               outputs = scm_cdr (outputs);
 155             }
 156         }
 157       else if (Text_interface::is_markup_list (scm_car (s))
 158                || unsmob_page_marker (scm_car (s)))
 159         paper_book->add_score (scm_car (s));
 160       else
 161         assert (0);
 162     }
 163
 164   return paper_book;
 165 }
 166