2 book.cc -- implement Book
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
12 #include "global-context.hh"
13 #include "ly-module.hh"
15 #include "music-iterator.hh"
16 #include "music-output.hh"
18 #include "output-def.hh"
19 #include "paper-book.hh"
29 assert (!scores_.size ());
37 #include "ly-smobs.icc"
38 IMPLEMENT_SMOBS (Book);
39 IMPLEMENT_DEFAULT_EQUAL_P (Book);
42 Book::mark_smob (SCM s)
44 Book *book = (Book*) SCM_CELL_WORD_1 (s);
45 int score_count = book->scores_.size ();
46 for (int i = 0; i < score_count; i++)
47 scm_gc_mark (book->scores_[i]->self_scm ());
50 scm_gc_mark (book->bookpaper_->self_scm ());
55 Book::print_smob (SCM, SCM p, scm_print_state*)
57 scm_puts ("#<Book>", p);
61 /* This function does not dump the output; outname is required eg. for
62 dumping header fields. */
64 Book::process (String outname, Output_def *default_def)
66 Paper_book *paper_book = new Paper_book ();
67 Real scale = ly_scm2double (bookpaper_->c_variable ("outputscale"));
69 Output_def * scaled_bookdef = scale_output_def (bookpaper_, scale);
71 paper_book->bookpaper_ = scaled_bookdef;
72 scm_gc_unprotect_object (scaled_bookdef->self_scm());
74 paper_book->header_ = header_;
76 int score_count = scores_.size ();
77 for (int i = 0; i < score_count; i++)
79 SCM systems = scores_[i]->book_rendering (outname,
80 paper_book->bookpaper_,
83 /* If the score is empty, generate no output. Should we
85 if (systems != SCM_EOL
86 /* FIXME: can systems be SCM_UNDEFINED at all?
87 it seesm to be initialise with SCM_EOL and only gets assigned
88 non-SCM_UNDEFINED values -- jcn */
89 && systems != SCM_UNDEFINED)
94 paper_book->score_lines_.push (sc);
102 /* FIXME: WIP, this is a hack. Return first page as stencil. */
104 Book::to_stencil (Output_def *default_def)
106 Paper_book *paper_book = process ("<markup>", default_def);
108 SCM pages = paper_book->pages ();
109 scm_gc_unprotect_object (paper_book->self_scm ());
111 if (ly_c_pair_p (pages))
113 progress_indication (_f ("paper output to `%s'...", "<markup>"));
114 return ly_car (pages);
117 scm_gc_unprotect_object (paper_book->bookpaper_->self_scm ());