2 paper-book.cc -- implement Paper_book
4 source file of the GNU LilyPond music typesetter
6 (c) 2004 Jan Nieuwenhuizen <janneke@gnu.org>
9 #include "ly-module.hh"
12 #include "paper-book.hh"
13 #include "output-def.hh"
14 #include "paper-outputter.hh"
15 #include "paper-line.hh"
16 #include "paper-score.hh"
22 Ugh. the Function of the Paper_book class is unclear. Trim this
28 Paper_book::Paper_book ()
40 Paper_book::~Paper_book ()
44 #include "ly-smobs.icc"
46 IMPLEMENT_DEFAULT_EQUAL_P (Paper_book);
47 IMPLEMENT_SMOBS (Paper_book)
48 IMPLEMENT_TYPE_P (Paper_book, "ly:paper-book?")
51 Paper_book::mark_smob (SCM smob)
53 Paper_book *b = (Paper_book*) SCM_CELL_WORD_1 (smob);
54 for (int i = 0; i < b->score_lines_.size (); i++)
55 b->score_lines_[i].gc_mark ();
57 scm_gc_mark (b->copyright_);
59 scm_gc_mark (b->bookpaper_->self_scm ());
60 scm_gc_mark (b->header_);
61 scm_gc_mark (b->pages_);
62 scm_gc_mark (b->lines_);
67 Paper_book::print_smob (SCM smob, SCM port, scm_print_state*)
69 Paper_book *b = (Paper_book*) ly_cdr (smob);
71 scm_puts ("#<", port);
72 scm_puts (classname (b), port);
74 //scm_puts (b->, port);
80 split_string (String s, char c)
89 s = s.nomid_string (0, 1);
96 rv.push (s.cut_string (0, i));
97 s = s.nomid_string (0, i);
106 SCM fields = SCM_EOL;
107 for (int i = dump_header_fieldnames_global.size (); i--; )
109 = scm_cons (ly_symbol2scm (dump_header_fieldnames_global[i].to_str0 ()),
114 LY_DEFINE(ly_output_formats, "ly:output-formats",
116 "Formats passed to --format as a list of strings, "
117 "used for the output.")
119 Array<String> output_formats = split_string (output_format_global, ',');
122 for (int i = 0; i < output_formats.size (); i ++)
124 l = scm_cons (scm_makfrom0str (output_formats[i].to_str0 ()), l);
133 TODO: there is too much code dup, and the interface is not
137 Paper_book::output (String outname)
139 if (!score_lines_.size ())
142 /* Generate all stencils to trigger font loads. */
146 SCM formats = ly_output_formats();
147 for (SCM s = formats; ly_c_pair_p (s); s = ly_cdr (s))
150 String format = ly_scm2string (ly_car (s));
152 Paper_outputter *out = get_paper_outputter (outname + "." + format, format);
155 SCM scopes = SCM_EOL;
156 if (ly_c_module_p (header_))
157 scopes = scm_cons (header_, scopes);
159 String func_nm = format;
160 func_nm = "output-framework-" + func_nm;
162 SCM func = ly_scheme_function (func_nm.to_str0 ());
163 scm_apply_0 (func, scm_list_n (out->self_scm (),
167 scm_makfrom0str (outname.to_str0 ()),
171 scm_gc_unprotect_object (out->self_scm ());
177 Paper_book::classic_output (String outname)
180 /* Generate all stencils to trigger font loads. */
185 SCM scopes = SCM_EOL;
186 if (ly_c_module_p (header_))
187 scopes = scm_cons (header_, scopes);
189 if (ly_c_module_p (score_lines_[0].header_))
190 scopes = scm_cons (score_lines_[0].header_, scopes);
194 Array<String> output_formats = split_string (output_format_global, ',');
196 for (int i = 0; i < output_formats.size (); i++)
198 String format = output_formats[i];
199 String func_nm = format;
200 func_nm = "output-classic-framework-" + func_nm;
202 SCM func = ly_scheme_function (func_nm.to_str0 ());
204 Paper_outputter *out = get_paper_outputter (outname + "." + format, format);
206 scm_apply_0 (func, scm_list_n (out->self_scm (),
210 scm_makfrom0str (outname.to_str0 ()),
214 scm_gc_unprotect_object (out->self_scm ());
217 progress_indication ("\n");
223 LY_DEFINE(ly_paper_book_pages, "ly:paper-book-pages",
226 "Return pages in book PB.")
228 return unsmob_paper_book(pb)->pages ();
232 LY_DEFINE(ly_paper_book_lines, "ly:paper-book-lines",
235 "Return lines in book PB.")
237 return unsmob_paper_book (pb)->lines ();
241 LY_DEFINE(ly_paper_book_book_paper, "ly:paper-book-book-paper",
244 "Return pages in book PB.")
246 return unsmob_paper_book(pb)->bookpaper_->self_scm ();
251 TODO: resurrect more complex user-tweaks for titling .
255 Paper_book::book_title ()
257 SCM title_func = bookpaper_->lookup_variable (ly_symbol2scm ("book-title"));
260 SCM scopes = SCM_EOL;
261 if (ly_c_module_p (header_))
262 scopes = scm_cons (header_, scopes);
266 if (ly_c_procedure_p (title_func))
267 tit = scm_call_2 (title_func,
268 bookpaper_->self_scm (),
271 if (unsmob_stencil (tit))
272 title = *unsmob_stencil (tit);
274 if (!title.is_empty ())
275 title.align_to (Y_AXIS, UP);
283 Paper_book::score_title (int i)
285 SCM title_func = bookpaper_->lookup_variable (ly_symbol2scm ("score-title"));
290 SCM scopes = SCM_EOL;
291 if (ly_c_module_p (header_))
292 scopes = scm_cons (header_, scopes);
294 if (ly_c_module_p (score_lines_[i].header_))
295 scopes = scm_cons (score_lines_[i].header_, scopes);
299 if (ly_c_procedure_p (title_func))
300 tit =scm_call_2 (title_func,
301 bookpaper_->self_scm (),
304 if (unsmob_stencil (tit))
305 title = *unsmob_stencil (tit);
308 if (!title.is_empty ())
309 title.align_to (Y_AXIS, UP);
319 if (ly_c_pair_p (lines_))
322 Stencil title = book_title ();
323 if (!title.is_empty ())
325 Paper_line *pl = new Paper_line (title, -10001, true);
327 lines_ = scm_cons (pl->self_scm (), lines_);
328 scm_gc_unprotect_object (pl->self_scm ());
331 int score_count = score_lines_.size ();
332 for (int i = 0; i < score_count; i++)
334 Stencil title = score_title (i);
335 if (!title.is_empty ())
337 Paper_line *pl = new Paper_line (title, -10001, true);
338 lines_ = scm_cons (pl->self_scm (), lines_);
339 scm_gc_unprotect_object (pl->self_scm ());
342 if (scm_vector_p (score_lines_[i].lines_) == SCM_BOOL_T)
344 SCM line_list = scm_vector_to_list (score_lines_[i].lines_); // guh.
345 lines_ = scm_append (scm_list_2 (scm_reverse (line_list), lines_));
349 lines_ = scm_reverse (lines_);
352 for (SCM s = lines_; s != SCM_EOL; s = ly_cdr (s))
353 unsmob_paper_line (ly_car (s))->number_ = ++i;
359 make_tagline (Output_def*paper, SCM scopes)
361 SCM make_tagline = paper->c_variable ("make-tagline");
362 SCM tagline = scm_call_2 (make_tagline, paper->self_scm (), scopes);
367 make_copyright (Output_def *paper, SCM scopes)
369 SCM make_copyright = paper->c_variable ("make-copyright");
370 SCM copyright = scm_call_2 (make_copyright, paper->self_scm (), scopes);
377 if (ly_c_pair_p (pages_))
380 Output_def *paper = bookpaper_;
381 Page *page = new Page (paper, 1);
383 Real text_height = page->text_height ();
385 Real copy_height = 0;
386 if (Stencil *s = unsmob_stencil (copyright_))
387 copy_height = s->extent (Y_AXIS).length ();
390 if (Stencil *s = unsmob_stencil (tagline_))
391 tag_height = s->extent (Y_AXIS).length ();
394 SCM proc = paper->c_variable ("page-breaking");
395 SCM breaks = scm_apply_0 (proc, scm_list_n (all,
397 scm_make_real (text_height),
398 scm_make_real (-copy_height),
399 scm_make_real (-tag_height),
404 UGH - move this out of C++.
406 SCM scopes = SCM_EOL;
407 if (ly_c_module_p (header_))
408 scopes = scm_cons (header_, scopes);
410 tagline_ = make_tagline (bookpaper_, scopes);
411 copyright_ = make_tagline (bookpaper_, scopes);
413 int page_count = SCM_VECTOR_LENGTH ((SCM) breaks);
416 for (int i = 0; i < page_count; i++)
419 page = new Page (paper, i + 1);
421 int next = i + 1 < page_count
422 ? ly_scm2int (scm_vector_ref (breaks, scm_int2num (i))) : 0;
423 while ((!next && all != SCM_EOL) || line <= next)
425 SCM s = ly_car (all);
426 page->lines_ = ly_snoc (s, page->lines_);
427 page->height_ += unsmob_paper_line (s)->dim ()[Y_AXIS];
432 if (i == page_count-1)
433 page->is_last_ = true;
435 pages_ = scm_cons (page->self_scm (), pages_);
438 pages_ = scm_reverse (pages_);
445 c_ragged_page_breaks (SCM lines,
448 Real first, Real last)
452 Real book_height =0.;
453 for (SCM s = lines ; ly_c_pair_p (s); s = ly_cdr (s))
455 book_height += unsmob_paper_line (ly_car (s))->dim ()[Y_AXIS];
459 UGH. following stuff should go out of C++.
461 SCM scopes = SCM_EOL;
462 if (ly_c_module_p (book->header_))
463 scopes = scm_cons (book->header_, scopes);
466 SCM tag = make_tagline (book->bookpaper_, scopes);
467 if (unsmob_stencil (tag))
469 book_height += unsmob_stencil (tag)->extent (Y_AXIS).length ();
472 SCM cr = make_copyright (book->bookpaper_, scopes);
473 if (unsmob_stencil (cr))
475 book_height += unsmob_stencil (cr)->extent (Y_AXIS).length ();
478 int page_count = int (book_height / text_height + 0.5); // ceil?
479 SCM breaks = SCM_EOL;
480 Real page_height = text_height + first;
483 for (SCM s = lines; ly_c_pair_p (s); s = ly_cdr (s))
485 Paper_line *pl = unsmob_paper_line (ly_car (s));
486 if (!pl->is_title () && h < page_height)
488 h += pl->dim ()[Y_AXIS];
489 if (!pl->is_title () && h > page_height)
491 breaks = ly_snoc (scm_int2num (number), breaks);
493 page_height = text_height + (page_number == page_count) * last;
496 if (ly_cdr (s) == SCM_EOL)
497 breaks = ly_snoc (scm_int2num (pl->number_), breaks);
500 return scm_vector (breaks);
503 LY_DEFINE (ly_ragged_page_breaks, "ly:ragged-page-breaks",
504 5, 0, 0, (SCM lines, SCM book, SCM text, SCM first, SCM last),
505 "Return a vector with line numbers of page breaks.")
507 Paper_book* b = unsmob_paper_book (book);
509 SCM_ASSERT_TYPE (scm_pair_p (lines), lines, SCM_ARG1, __FUNCTION__, "list");
510 SCM_ASSERT_TYPE (b, book, SCM_ARG2, __FUNCTION__, "Paper_book");
511 SCM_ASSERT_TYPE (ly_c_number_p (text), text, SCM_ARG3, __FUNCTION__, "number");
512 SCM_ASSERT_TYPE (ly_c_number_p (first), first, SCM_ARG4, __FUNCTION__, "number");
513 SCM_ASSERT_TYPE (ly_c_number_p (last), last, SCM_ARG5, __FUNCTION__, "number");
515 return c_ragged_page_breaks (lines, b,
516 ly_scm2double (text),
517 ly_scm2double (first), ly_scm2double (last));
520 /****************************************************************/
522 Score_lines::Score_lines ()
529 Score_lines::gc_mark ()
531 scm_gc_mark (lines_);
532 scm_gc_mark (header_);