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 ++)
123 lst = scm_cons (scm_makfrom0str (output_formats[i].to_str0 ()), lst);
131 TODO: there is too much code dup, and the interface is not
135 Paper_book::output (String outname)
137 if (!score_lines_.size ())
140 /* Generate all stencils to trigger font loads. */
144 SCM formats = ly_output_formats();
145 for (SCM s = formats; ly_c_pair_p (s); s = ly_cdr (s))
148 String format = ly_scm2string (ly_car (s));
150 Paper_outputter *out = get_paper_outputter (outname + "." + format, format);
153 SCM scopes = SCM_EOL;
154 if (ly_c_module_p (header_))
155 scopes = scm_cons (header_, scopes);
157 String func_nm = format;
158 func_nm = "output-framework-" + func_nm;
160 SCM func = ly_scheme_function (func_nm.to_str0 ());
161 scm_apply_0 (func, scm_list_n (out->self_scm (),
165 scm_makfrom0str (outname.to_str0 ()),
169 scm_gc_unprotect_object (out->self_scm ());
175 Paper_book::classic_output (String outname)
178 /* Generate all stencils to trigger font loads. */
183 SCM scopes = SCM_EOL;
184 if (ly_c_module_p (header_))
185 scopes = scm_cons (header_, scopes);
187 if (ly_c_module_p (score_lines_[0].header_))
188 scopes = scm_cons (score_lines_[0].header_, scopes);
192 Array<String> output_formats = split_string (output_format_global, ',');
194 for (int i = 0; i < output_formats.size (); i++)
196 String format = output_formats[i];
197 String func_nm = format;
198 func_nm = "output-classic-framework-" + func_nm;
200 SCM func = ly_scheme_function (func_nm.to_str0 ());
202 Paper_outputter *out = get_paper_outputter (outname + "." + format, format);
204 scm_apply_0 (func, scm_list_n (out->self_scm (),
208 scm_makfrom0str (outname.to_str0 ()),
212 scm_gc_unprotect_object (out->self_scm ());
215 progress_indication ("\n");
221 LY_DEFINE(ly_paper_book_pages, "ly:paper-book-pages",
224 "Return pages in book PB.")
226 return unsmob_paper_book(pb)->pages ();
230 LY_DEFINE(ly_paper_book_lines, "ly:paper-book-lines",
233 "Return lines in book PB.")
235 return unsmob_paper_book (pb)->lines ();
239 LY_DEFINE(ly_paper_book_book_paper, "ly:paper-book-book-paper",
242 "Return pages in book PB.")
244 return unsmob_paper_book(pb)->bookpaper_->self_scm ();
249 TODO: resurrect more complex user-tweaks for titling .
253 Paper_book::book_title ()
255 SCM title_func = bookpaper_->lookup_variable (ly_symbol2scm ("book-title"));
258 SCM scopes = SCM_EOL;
259 if (ly_c_module_p (header_))
260 scopes = scm_cons (header_, scopes);
264 if (ly_c_procedure_p (title_func))
265 tit = scm_call_2 (title_func,
266 bookpaper_->self_scm (),
269 if (unsmob_stencil (tit))
270 title = *unsmob_stencil (tit);
272 if (!title.is_empty ())
273 title.align_to (Y_AXIS, UP);
281 Paper_book::score_title (int i)
283 SCM title_func = bookpaper_->lookup_variable (ly_symbol2scm ("score-title"));
288 SCM scopes = SCM_EOL;
289 if (ly_c_module_p (header_))
290 scopes = scm_cons (header_, scopes);
292 if (ly_c_module_p (score_lines_[i].header_))
293 scopes = scm_cons (score_lines_[i].header_, scopes);
297 if (ly_c_procedure_p (title_func))
298 tit =scm_call_2 (title_func,
299 bookpaper_->self_scm (),
302 if (unsmob_stencil (tit))
303 title = *unsmob_stencil (tit);
306 if (!title.is_empty ())
307 title.align_to (Y_AXIS, UP);
317 if (ly_c_pair_p (lines_))
320 Stencil title = book_title ();
321 if (!title.is_empty ())
323 Paper_line *pl = new Paper_line (title, -10001, true);
325 lines_ = scm_cons (pl->self_scm (), lines_);
326 scm_gc_unprotect_object (pl->self_scm ());
329 int score_count = score_lines_.size ();
330 for (int i = 0; i < score_count; i++)
332 Stencil title = score_title (i);
333 if (!title.is_empty ())
335 Paper_line *pl = new Paper_line (title, -10001, true);
336 lines_ = scm_cons (pl->self_scm (), lines_);
337 scm_gc_unprotect_object (pl->self_scm ());
340 if (scm_vector_p (score_lines_[i].lines_) == SCM_BOOL_T)
342 SCM line_list = scm_vector_to_list (score_lines_[i].lines_); // guh.
343 lines_ = scm_append (scm_list_2 (scm_reverse (line_list), lines_));
347 lines_ = scm_reverse (lines_);
350 for (SCM s = lines_; s != SCM_EOL; s = ly_cdr (s))
351 unsmob_paper_line (ly_car (s))->number_ = ++i;
357 make_tagline (Output_def*paper, SCM scopes)
359 SCM make_tagline = paper->c_variable ("make-tagline");
360 SCM tagline = scm_call_2 (make_tagline, paper->self_scm (), scopes);
365 make_copyright (Output_def *paper, SCM scopes)
367 SCM make_copyright = paper->c_variable ("make-copyright");
368 SCM copyright = scm_call_2 (make_copyright, paper->self_scm (), scopes);
375 if (ly_c_pair_p (pages_))
378 Output_def *paper = bookpaper_;
379 Page *page = new Page (paper, 1);
381 Real text_height = page->text_height ();
383 Real copy_height = 0;
384 if (Stencil *s = unsmob_stencil (copyright_))
385 copy_height = s->extent (Y_AXIS).length ();
388 if (Stencil *s = unsmob_stencil (tagline_))
389 tag_height = s->extent (Y_AXIS).length ();
392 SCM proc = paper->c_variable ("page-breaking");
393 SCM breaks = scm_apply_0 (proc, scm_list_n (all,
395 scm_make_real (text_height),
396 scm_make_real (-copy_height),
397 scm_make_real (-tag_height),
402 UGH - move this out of C++.
404 SCM scopes = SCM_EOL;
405 if (ly_c_module_p (header_))
406 scopes = scm_cons (header_, scopes);
408 tagline_ = make_tagline (bookpaper_, scopes);
409 copyright_ = make_tagline (bookpaper_, scopes);
411 int page_count = SCM_VECTOR_LENGTH ((SCM) breaks);
414 for (int i = 0; i < page_count; i++)
417 page = new Page (paper, i + 1);
419 int next = i + 1 < page_count
420 ? ly_scm2int (scm_vector_ref (breaks, scm_int2num (i))) : 0;
421 while ((!next && all != SCM_EOL) || line <= next)
423 SCM s = ly_car (all);
424 page->lines_ = ly_snoc (s, page->lines_);
425 page->height_ += unsmob_paper_line (s)->dim ()[Y_AXIS];
430 if (i == page_count-1)
431 page->is_last_ = true;
433 pages_ = scm_cons (page->self_scm (), pages_);
436 pages_ = scm_reverse (pages_);
443 c_ragged_page_breaks (SCM lines,
446 Real first, Real last)
450 Real book_height =0.;
451 for (SCM s = lines ; ly_c_pair_p (s); s = ly_cdr (s))
453 book_height += unsmob_paper_line (ly_car (s))->dim ()[Y_AXIS];
457 UGH. following stuff should go out of C++.
459 SCM scopes = SCM_EOL;
460 if (ly_c_module_p (book->header_))
461 scopes = scm_cons (book->header_, scopes);
464 SCM tag = make_tagline (book->bookpaper_, scopes);
465 if (unsmob_stencil (tag))
467 book_height += unsmob_stencil (tag)->extent (Y_AXIS).length ();
470 SCM cr = make_copyright (book->bookpaper_, scopes);
471 if (unsmob_stencil (cr))
473 book_height += unsmob_stencil (cr)->extent (Y_AXIS).length ();
476 int page_count = int (book_height / text_height + 0.5); // ceil?
477 SCM breaks = SCM_EOL;
478 Real page_height = text_height + first;
481 for (SCM s = lines; ly_c_pair_p (s); s = ly_cdr (s))
483 Paper_line *pl = unsmob_paper_line (ly_car (s));
484 if (!pl->is_title () && h < page_height)
486 h += pl->dim ()[Y_AXIS];
487 if (!pl->is_title () && h > page_height)
489 breaks = ly_snoc (scm_int2num (number), breaks);
491 page_height = text_height + (page_number == page_count) * last;
494 if (ly_cdr (s) == SCM_EOL)
495 breaks = ly_snoc (scm_int2num (pl->number_), breaks);
498 return scm_vector (breaks);
501 LY_DEFINE (ly_ragged_page_breaks, "ly:ragged-page-breaks",
502 5, 0, 0, (SCM lines, SCM book, SCM text, SCM first, SCM last),
503 "Return a vector with line numbers of page breaks.")
505 Paper_book* b = unsmob_paper_book (book);
507 SCM_ASSERT_TYPE (scm_pair_p (lines), lines, SCM_ARG1, __FUNCTION__, "list");
508 SCM_ASSERT_TYPE (b, book, SCM_ARG2, __FUNCTION__, "Paper_book");
509 SCM_ASSERT_TYPE (ly_c_number_p (text), text, SCM_ARG3, __FUNCTION__, "number");
510 SCM_ASSERT_TYPE (ly_c_number_p (first), first, SCM_ARG4, __FUNCTION__, "number");
511 SCM_ASSERT_TYPE (ly_c_number_p (last), last, SCM_ARG5, __FUNCTION__, "number");
513 return c_ragged_page_breaks (lines, b,
514 ly_scm2double (text),
515 ly_scm2double (first), ly_scm2double (last));
518 /****************************************************************/
520 Score_lines::Score_lines ()
527 Score_lines::gc_mark ()
529 scm_gc_mark (lines_);
530 scm_gc_mark (header_);