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"
23 stencil2line (Stencil stil, bool is_title = false)
27 z = scm_permanent_object (ly_offset2scm (Offset (0, 0)));
28 Offset dim = Offset (stil.extent (X_AXIS).length (),
29 stil.extent (Y_AXIS).length ());
30 Paper_line *pl = new Paper_line (dim, scm_cons (stil.smobbed_copy (),
32 -10001 * is_title, is_title);
34 return scm_gc_unprotect_object (pl->self_scm ());
38 Paper_book::Paper_book ()
48 Paper_book::~Paper_book ()
52 #include "ly-smobs.icc"
54 IMPLEMENT_DEFAULT_EQUAL_P (Paper_book);
55 IMPLEMENT_SMOBS (Paper_book)
56 IMPLEMENT_TYPE_P (Paper_book, "ly:paper-book?")
59 Paper_book::mark_smob (SCM smob)
61 Paper_book *b = (Paper_book*) SCM_CELL_WORD_1 (smob);
62 for (int i = 0; i < b->score_lines_.size (); i++)
63 b->score_lines_[i].gc_mark ();
65 scm_gc_mark (b->copyright_);
67 scm_gc_mark (b->bookpaper_->self_scm ());
68 scm_gc_mark (b->header_);
73 Paper_book::print_smob (SCM smob, SCM port, scm_print_state*)
75 Paper_book *b = (Paper_book*) ly_cdr (smob);
77 scm_puts ("#<", port);
78 scm_puts (classname (b), port);
80 //scm_puts (b->, port);
86 split_string (String s, char c)
95 s = s.nomid_string (0, 1);
102 rv.push (s.cut_string (0, i));
103 s = s.nomid_string (0, i);
112 TODO: there is too much code dup, and the interface is not
116 Paper_book::output (String outname)
118 if (!score_lines_.size ())
119 // FIXME: no end-output?
122 /* Generate all stencils to trigger font loads. */
123 SCM pages = this->pages ();
125 Array<String> output_formats = split_string (output_format_global, ',');
127 for (int i = 0; i < output_formats.size (); i++)
129 String format = output_formats[i];
130 Paper_outputter *out = get_paper_outputter (outname + "." + output_formats[i], format);
131 int page_count = scm_ilength (pages);
133 SCM scopes = SCM_EOL;
134 if (ly_c_module_p (header_))
135 scopes = scm_cons (header_, scopes);
137 out->output_header (bookpaper_, scopes, page_count, false);
139 for (SCM s = pages; s != SCM_EOL; s = ly_cdr (s))
141 Page *p = unsmob_page (ly_car (s));
142 progress_indication ("[" + to_string (p->number_));
143 out->output_page (p, ly_cdr (s) == SCM_EOL);
144 progress_indication ("]");
147 out->output_scheme (scm_list_1 (ly_symbol2scm ("end-output")));
148 progress_indication ("\n");
153 Paper_book::title (int i)
155 SCM user_title = bookpaper_->lookup_variable (ly_symbol2scm ("user-title"));
156 SCM book_title = bookpaper_->lookup_variable (ly_symbol2scm ("book-title"));
157 SCM score_title = bookpaper_->lookup_variable (ly_symbol2scm ("score-title"));
158 SCM field = (i == 0 ? ly_symbol2scm ("bookTitle")
159 : ly_symbol2scm ("scoreTitle"));
164 SCM scopes = SCM_EOL;
165 if (ly_c_module_p (header_))
166 scopes = scm_cons (header_, scopes);
168 if (ly_c_module_p (score_lines_[i].header_))
169 scopes = scm_cons (score_lines_[i].header_, scopes);
172 SCM s = ly_modules_lookup (scopes, field, SCM_BOOL_F);
174 title = *unsmob_stencil (scm_call_2 (user_title,
175 bookpaper_->self_scm (),
178 title = *unsmob_stencil (scm_call_2 (i == 0 ? book_title : score_title,
179 bookpaper_->self_scm (),
181 if (!title.is_empty ())
182 title.align_to (Y_AXIS, UP);
188 Paper_book::classic_output (String outname)
190 String format = "tex";
191 Paper_outputter *out = get_paper_outputter (outname + "." + format, format);
193 Output_def * p = bookpaper_;
194 while (p && p->parent_)
198 SCM scopes = SCM_EOL;
199 if (ly_c_module_p (header_))
200 scopes = scm_cons (header_, scopes);
202 if (ly_c_module_p (score_lines_[0].header_))
203 scopes = scm_cons (score_lines_[0].header_, scopes);
206 out->output_header (p, scopes, 0, true);
208 SCM top_lines = score_lines_.top ().lines_;
209 Paper_line *first = unsmob_paper_line (scm_vector_ref (top_lines,
211 Offset o (0, -0.5 * first->dim ()[Y_AXIS]);
212 int line_count = SCM_VECTOR_LENGTH (top_lines);
213 for (int i = 0; i < line_count; i++)
215 /* In classic compatibility TeX tracks how large things are, and
216 advances the Y pos for us. If we advance it too, we get too
219 FIXME: vague... why is TeX is different from other ouput
220 backends, why not fix the TeX backend? -- jcn */
224 out->output_line (scm_vector_ref (top_lines, scm_int2num (i)),
225 &o, i == line_count - 1);
228 out->output_scheme (scm_list_1 (ly_symbol2scm ("end-output")));
229 progress_indication ("\n");
232 /* calculate book height, #lines, stencils. */
236 int score_count = score_lines_.size ();
238 /* Calculate the full book height. Hmm, can't we cache system
239 heights while making stencils? */
241 for (int i = 0; i < score_count; i++)
243 Stencil title = this->title (i);
244 if (!title.is_empty ())
245 height_ += title.extent (Y_AXIS).length ();
247 int line_count = SCM_VECTOR_LENGTH (score_lines_[i].lines_);
248 for (int j = 0; j < line_count; j++)
250 SCM s = scm_vector_ref ((SCM) score_lines_[i].lines_, scm_int2num (j));
251 height_ += unsmob_paper_line (s)->dim ()[Y_AXIS];
255 Output_def *paper = bookpaper_;
257 SCM scopes = SCM_EOL;
258 if (ly_c_module_p (header_))
259 scopes = scm_cons (header_, scopes);
261 SCM make_tagline = paper->c_variable ("make-tagline");
262 tagline_ = scm_call_2 (make_tagline, paper->self_scm (), scopes);
264 if (Stencil *s = unsmob_stencil (tagline_))
265 tag_height = s->extent (Y_AXIS).length ();
266 height_ += tag_height;
268 SCM make_copyright = paper->c_variable ("make-copyright");
269 copyright_ = scm_call_2 (make_copyright, paper->self_scm (), scopes);
270 Real copy_height = 0;
271 if (Stencil *s = unsmob_stencil (copyright_))
272 copy_height = s->extent (Y_AXIS).length ();
273 height_ += copy_height;
279 int score_count = score_lines_.size ();
281 for (int i = 0; i < score_count; i++)
283 Stencil title = this->title (i);
284 if (!title.is_empty ())
285 lines = ly_snoc (stencil2line (title, true), lines);
286 lines = scm_append (scm_list_2 (lines, scm_vector_to_list (score_lines_[i].lines_)));
291 for (SCM s = lines; s != SCM_EOL; s = ly_cdr (s))
292 unsmob_paper_line (ly_car (s))->number_ = ++i;
300 Page::page_count_ = 0;
302 Output_def *paper = bookpaper_;
303 Page *page = new Page (paper, 1);
305 Real text_height = page->text_height ();
307 Real copy_height = 0;
308 if (Stencil *s = unsmob_stencil (copyright_))
309 copy_height = s->extent (Y_AXIS).length ();
312 if (Stencil *s = unsmob_stencil (tagline_))
313 tag_height = s->extent (Y_AXIS).length ();
316 SCM proc = paper->c_variable ("page-breaking");
317 SCM breaks = scm_apply_0 (proc, scm_list_n (all, scm_make_real (height_),
318 scm_make_real (text_height),
319 scm_make_real (-copy_height),
320 scm_make_real (-tag_height),
323 /* Copyright on first page. */
324 if (unsmob_stencil (copyright_))
325 page->copyright_ = copyright_;
328 int page_count = SCM_VECTOR_LENGTH ((SCM) breaks);
331 for (int i = 0; i < page_count; i++)
334 page = new Page (paper, i + 1);
336 int next = i + 1 < page_count
337 ? ly_scm2int (scm_vector_ref (breaks, scm_int2num (i))) : 0;
338 while ((!next && all != SCM_EOL) || line <= next)
340 SCM s = ly_car (all);
341 page->lines_ = ly_snoc (s, page->lines_);
342 page->height_ += unsmob_paper_line (s)->dim ()[Y_AXIS];
347 pages = scm_cons (page->self_scm (), pages);
350 /* Tagline on last page. */
351 if (unsmob_stencil (tagline_))
352 page->tagline_ = tagline_;
354 return scm_reverse (pages);
358 c_ragged_page_breaks (SCM lines, Real book_height, Real text_height,
359 Real first, Real last)
362 int page_count = int (book_height / text_height + 0.5);
363 SCM breaks = SCM_EOL;
364 Real page_height = text_height + first;
367 for (SCM s = lines; s != SCM_EOL; s = ly_cdr (s))
369 Paper_line *pl = unsmob_paper_line (ly_car (s));
370 if (!pl->is_title () && h < page_height)
372 h += pl->dim ()[Y_AXIS];
373 if (!pl->is_title () && h > page_height)
375 breaks = ly_snoc (scm_int2num (number), breaks);
377 page_height = text_height + (page_number == page_count) * last;
380 if (ly_cdr (s) == SCM_EOL)
381 breaks = ly_snoc (scm_int2num (pl->number_), breaks);
384 return scm_vector (breaks);
387 LY_DEFINE (ly_ragged_page_breaks, "ly:ragged-page-breaks",
388 5, 0, 0, (SCM lines, SCM book, SCM text, SCM first, SCM last),
389 "Return a vector with line numbers of page breaks.")
391 SCM_ASSERT_TYPE (scm_pair_p (lines), lines, SCM_ARG1, __FUNCTION__, "list");
392 SCM_ASSERT_TYPE (ly_c_number_p (book), book, SCM_ARG2, __FUNCTION__, "real");
393 SCM_ASSERT_TYPE (ly_c_number_p (text), text, SCM_ARG2, __FUNCTION__, "real");
394 SCM_ASSERT_TYPE (ly_c_number_p (first), first, SCM_ARG2, __FUNCTION__, "real");
395 SCM_ASSERT_TYPE (ly_c_number_p (last), last, SCM_ARG2, __FUNCTION__, "real");
397 return c_ragged_page_breaks (lines,
398 ly_scm2double (book), ly_scm2double (text),
399 ly_scm2double (first), ly_scm2double (last));
402 /****************************************************************/
404 Score_lines::Score_lines ()
411 Score_lines::gc_mark ()
413 scm_gc_mark (lines_);
414 scm_gc_mark (header_);