(c) 2004 Jan Nieuwenhuizen <janneke@gnu.org>
*/
-#include <stdio.h>
-#include <math.h>
-
#include "ly-module.hh"
#include "main.hh"
+#include "output-def.hh"
#include "paper-book.hh"
-#include "paper-def.hh"
#include "paper-outputter.hh"
-#include "paper-line.hh"
#include "paper-score.hh"
+#include "paper-system.hh"
#include "stencil.hh"
+#include "warn.hh"
-static Real const MIN_COVERAGE = 0.66;
-
-static SCM
-stencil2line (Stencil* stil, bool is_title = false)
-{
- static SCM z;
- if (!z)
- z = scm_permanent_object (ly_offset2scm (Offset (0, 0)));
- Offset dim = Offset (stil->extent (X_AXIS).length (),
- stil->extent (Y_AXIS).length ());
- Paper_line *pl = new Paper_line (dim, scm_cons (stil->smobbed_copy (),
- SCM_EOL),
- -10001 * is_title, is_title);
-
- return scm_gc_unprotect_object (pl->self_scm ());
-}
-
-/* Simplistic page interface */
-class Page
-{
-public:
- Paper_def *paper_;
- static int page_count_;
- int number_;
- int line_count_;
-
- Protected_scm lines_;
- Protected_scm header_;
- Protected_scm footer_;
- Protected_scm copyright_;
- Protected_scm tagline_;
-
- Stencil *get_header () { return unsmob_stencil (header_); }
- Stencil *get_copyright () { return unsmob_stencil (copyright_); }
- Stencil *get_tagline () { return unsmob_stencil (tagline_); }
- Stencil *get_footer () { return unsmob_stencil (footer_); }
-
- /* actual height filled with text. */
- Real height_;
-
- // HMMM all this size stuff to paper/paper-outputter?
- Real hsize_;
- Real vsize_;
- Real left_margin_;
- Real top_margin_;
- Real bottom_margin_;
- Real foot_sep_;
- Real head_sep_;
- Real text_width_;
-
- /* available area for text. */
- Real text_height ();
-
- Page (Paper_def*, int);
- void output (Paper_outputter*, bool);
-};
-
-int Page::page_count_ = 0;
-
-Page::Page (Paper_def *paper, int number)
-{
- paper_ = paper;
- number_ = number;
- page_count_++;
-
- height_ = 0;
- lines_ = SCM_EOL;
- line_count_ = 0;
-
- hsize_ = paper->get_dimension (ly_symbol2scm ("hsize"));
- vsize_ = paper->get_dimension (ly_symbol2scm ("vsize"));
- top_margin_ = paper->get_dimension (ly_symbol2scm ("top-margin"));
- bottom_margin_ = paper->get_dimension (ly_symbol2scm ("bottom-margin"));
- head_sep_ = paper->get_dimension (ly_symbol2scm ("head-sep"));
- foot_sep_ = paper->get_dimension (ly_symbol2scm ("foot-sep"));
- text_width_ = paper->get_dimension (ly_symbol2scm ("linewidth"));
- left_margin_ = (hsize_ - text_width_) / 2;
-
- copyright_ = SCM_EOL;
- tagline_ = SCM_EOL;
-
- SCM make_header = ly_scheme_function ("make-header");
- SCM make_footer = ly_scheme_function ("make-footer");
-
- header_ = scm_call_2 (make_header, paper_->self_scm (),
- scm_int2num (number_));
- if (get_header ())
- get_header ()->align_to (Y_AXIS, UP);
-
- footer_ = scm_call_2 (make_footer, paper_->self_scm (),
- scm_int2num (number_));
- if (get_footer ())
- get_footer ()->align_to (Y_AXIS, UP);
-}
-
-void
-Page::output (Paper_outputter *out, bool is_last)
-{
- progress_indication ("[" + to_string (number_));
- out->output_scheme (scm_list_1 (ly_symbol2scm ("start-page")));
- Offset o (left_margin_, top_margin_);
- Real vfill = line_count_ > 1 ? (text_height () - height_) / (line_count_ - 1)
- : 0;
-
- Real coverage = height_ / text_height ();
- if (coverage < MIN_COVERAGE)
- /* Do not space out a badly filled page. This is too simplistic
- (ie broken), because this should not vary too much between
- (subsequent?) pages in a book. */
- vfill = 0;
-
- if (get_header ())
- {
- out->output_line (stencil2line (get_header ()), &o, false);
- o[Y_AXIS] += head_sep_;
- }
- for (SCM s = lines_; s != SCM_EOL; s = ly_cdr (s))
- {
- SCM line = ly_car (s);
- out->output_line (line, &o,
- is_last && ly_cdr (s) != SCM_EOL && !get_copyright ()
- && !get_tagline () && !get_footer ());
-
- /* Do not put vfill between title and its music, */
- if (scm_pair_p (ly_cdr (s))
- && (!unsmob_paper_line (line)->is_title () || vfill < 0))
- o[Y_AXIS] += vfill;
- /* rather put extra just before the title. */
- if (ly_cdr (s) != SCM_EOL
- && (unsmob_paper_line (ly_cadr (s))->is_title () && vfill > 0))
- o[Y_AXIS] += vfill;
- }
-
- o[Y_AXIS] = vsize_ - bottom_margin_;
- if (get_copyright ())
- o[Y_AXIS] -= get_copyright ()->extent (Y_AXIS).length ();
- if (get_tagline ())
- o[Y_AXIS] -= get_tagline ()->extent (Y_AXIS).length ();
- if (get_footer ())
- o[Y_AXIS] -= get_footer ()->extent (Y_AXIS).length ();
-
- if (get_copyright ())
- out->output_line (stencil2line (get_copyright ()), &o,
- is_last && !get_tagline () && !get_footer ());
- if (get_tagline ())
- out->output_line (stencil2line (get_tagline ()), &o,
- is_last && !get_footer ());
- if (get_footer ())
- out->output_line (stencil2line (get_footer ()), &o, is_last);
- out->output_scheme (scm_list_2 (ly_symbol2scm ("stop-page"),
- ly_bool2scm (is_last && !get_footer ())));
- progress_indication ("]");
-}
-
-Real
-Page::text_height ()
-{
- Real h = vsize_ - top_margin_ - bottom_margin_;
- if (get_header ())
- h -= get_header ()->extent (Y_AXIS).length () + head_sep_;
- if (get_copyright () || get_tagline () || get_footer ())
- h -= foot_sep_;
- if (get_copyright ())
- h -= get_copyright ()->extent (Y_AXIS).length ();
- if (get_tagline ())
- h -= get_tagline ()->extent (Y_AXIS).length ();
- if (get_footer ())
- h -= get_footer ()->extent (Y_AXIS).length ();
- return h;
-}
-
-/****************************************************************/
+#include "ly-smobs.icc"
Paper_book::Paper_book ()
{
- copyright_ = SCM_EOL;
- tagline_ = SCM_EOL;
+ pages_ = SCM_BOOL_F;
+ systems_ = SCM_BOOL_F;
+ header_ = SCM_EOL;
+ paper_ = 0;
smobify_self ();
}
{
}
-#include "ly-smobs.icc"
-
IMPLEMENT_DEFAULT_EQUAL_P (Paper_book);
IMPLEMENT_SMOBS (Paper_book)
IMPLEMENT_TYPE_P (Paper_book, "ly:paper-book?")
SCM
Paper_book::mark_smob (SCM smob)
{
- Paper_book *pb = (Paper_book*) SCM_CELL_WORD_1 (smob);
- for (int i = 0; i < pb->headers_.size (); i++)
- scm_gc_mark (pb->headers_[i]);
- for (int i = 0; i < pb->global_headers_.size (); i++)
- scm_gc_mark (pb->global_headers_[i]);
- for (int i = 0; i < pb->papers_.size (); i++)
- scm_gc_mark (pb->papers_[i]->self_scm ());
- for (int i = 0; i < pb->scores_.size (); i++)
- scm_gc_mark (pb->scores_[i]);
-
- scm_gc_mark (pb->copyright_);
-
- return pb->tagline_;
+ Paper_book *b = (Paper_book*) SCM_CELL_WORD_1 (smob);
+ for (int i = 0; i < b->score_systems_.size (); i++)
+ b->score_systems_[i].gc_mark ();
+
+ if (b->paper_)
+ scm_gc_mark (b->paper_->self_scm ());
+ scm_gc_mark (b->header_);
+ scm_gc_mark (b->pages_);
+ return b->systems_;
}
int
Paper_book::print_smob (SCM smob, SCM port, scm_print_state*)
{
- Paper_book *b = (Paper_book*) ly_cdr (smob);
+ Paper_book *b = (Paper_book*) SCM_CELL_WORD_1 (smob);
scm_puts ("#<", port);
scm_puts (classname (b), port);
return 1;
}
-void
-Paper_book::output (String outname)
+Array<String>
+split_string (String s, char c)
{
- if (!papers_.size ())
- return;
-
- /* Generate all stencils to trigger font loads. */
- Link_array<Page> *pages = this->pages ();
+ Array<String> rv;
+ while (s.length ())
+ {
+ int i = s.index (c);
+
+ if (i == 0)
+ {
+ s = s.nomid_string (0, 1);
+ continue;
+ }
+
+ if (i < 0)
+ i = s.length () ;
+
+ rv.push (s.cut_string (0, i));
+ s = s.nomid_string (0, i);
+ }
- Paper_def *paper = papers_[0];
- Paper_outputter *out = paper->get_paper_outputter (outname);
- out->output_header (paper, scopes (0), pages->size (), false);
+ return rv;
+}
- int page_count = pages->size ();
- for (int i = 0; i < page_count; i++)
- (*pages)[i]->output (out, i + 1 == page_count);
+SCM
+dump_fields ()
+{
+ SCM fields = SCM_EOL;
+ for (int i = dump_header_fieldnames_global.size (); i--; )
+ fields
+ = scm_cons (ly_symbol2scm (dump_header_fieldnames_global[i].to_str0 ()),
+ fields);
+ return fields;
+}
- out->output_scheme (scm_list_1 (ly_symbol2scm ("end-output")));
+LY_DEFINE (ly_output_formats, "ly:output-formats",
+ 0, 0, 0, (),
+ "Formats passed to --format as a list of strings, "
+ "used for the output.")
+{
+ Array<String> output_formats = split_string (output_format_global, ',');
- /* Ugh. */
- for (int i = pages->size (); i--;)
- delete pages->elem (i);
- delete pages;
+ SCM lst = SCM_EOL;
+ int output_formats_count = output_formats.size ();
+ for (int i = 0; i < output_formats_count; i ++)
+ lst = scm_cons (scm_makfrom0str (output_formats[i].to_str0 ()), lst);
- progress_indication ("\n");
+ return lst;
}
-SCM
-Paper_book::scopes (int i)
+void
+Paper_book::post_processing (SCM module,
+ SCM file_name)
{
- SCM scopes = SCM_EOL;
- if (headers_[i])
- scopes = scm_cons (headers_[i], scopes);
- if (global_headers_.size ()
- && global_headers_[i] && global_headers_[i] != headers_[i])
- scopes = scm_cons (global_headers_[i], scopes);
- return scopes;
+ struct
+ {
+ bool do_it_;
+ char const *func_name_;
+ } settings[] = {
+ {make_tex, "convert-to-tex"},
+ {make_dvi, "convert-to-dvi"},
+ {make_ps, "convert-to-ps"},
+ {make_pdf, "convert-to-pdf"},
+ {make_png, "convert-to-png"},
+ {0, 0},
+ };
+
+ for (int i = 0; settings[i].func_name_; i++)
+ {
+ if (settings[i].do_it_)
+ {
+ SCM func = scm_c_module_lookup (module, settings[i].func_name_);
+ if (scm_variable_p (func) == SCM_BOOL_T)
+ {
+ func = scm_variable_ref (func);
+ if (ly_c_procedure_p (func))
+ scm_call_2 (func, self_scm (), file_name);
+ }
+ }
+ }
}
-Stencil*
-Paper_book::title (int i)
+void
+Paper_book::output (String outname)
{
- SCM user_title = ly_scheme_function ("user-title");
- SCM book_title = ly_scheme_function ("book-title");
- SCM score_title = ly_scheme_function ("score-title");
- SCM field = (i == 0 ? ly_symbol2scm ("bookTitle")
- : ly_symbol2scm ("scoreTitle"));
-
- Stencil *title = 0;
- SCM scopes = this->scopes (i);
- SCM s = ly_modules_lookup (scopes, field);
- if (s != SCM_UNDEFINED && scm_variable_bound_p (s) == SCM_BOOL_T)
- title = unsmob_stencil (scm_call_2 (user_title,
- papers_[0]->self_scm (),
- scm_variable_ref (s)));
- else
- title = unsmob_stencil (scm_call_2 (i == 0 ? book_title : score_title,
- papers_[0]->self_scm (),
- scopes));
- if (title)
- title->align_to (Y_AXIS, UP);
+ if (!score_systems_.size ())
+ return;
+
+ /* Generate all stencils to trigger font loads. */
+ pages ();
- return title;
+ SCM formats = ly_output_formats ();
+ for (SCM s = formats; scm_is_pair (s); s = scm_cdr (s))
+ {
+ String format = ly_scm2string (scm_car (s));
+ String file_name = outname;
+
+ if (file_name != "-")
+ file_name += "." + format;
+
+ Paper_outputter *out = get_paper_outputter (file_name, format);
+
+ SCM scopes = SCM_EOL;
+ if (ly_c_module_p (header_))
+ scopes = scm_cons (header_, scopes);
+
+ String mod_nm = "scm framework-" + format;
+
+ SCM mod = scm_c_resolve_module (mod_nm.to_str0 ());
+ if (make_pages)
+ {
+ SCM func = scm_c_module_lookup (mod, "output-framework");
+
+ func = scm_variable_ref (func);
+ scm_apply_0 (func, scm_list_n (out->self_scm (),
+ self_scm (),
+ scopes,
+ dump_fields (),
+ scm_makfrom0str (outname.to_str0 ()),
+ SCM_UNDEFINED));
+ out->close ();
+ scm_gc_unprotect_object (out->self_scm ());
+ post_processing (mod, scm_makfrom0str (file_name.to_str0 ()));
+ }
+
+ if (make_preview)
+ {
+ String file_name = outname + ".preview." + format;
+ Paper_outputter *out = get_paper_outputter (file_name, format);
+
+ SCM func = scm_c_module_lookup (mod, "output-preview-framework");
+ func = scm_variable_ref (func);
+ scm_apply_0 (func, scm_list_n (out->self_scm (),
+ self_scm (),
+ scopes,
+ dump_fields (),
+ scm_makfrom0str (outname.to_str0 ()),
+ SCM_UNDEFINED));
+
+ out->close ();
+ scm_gc_unprotect_object (out->self_scm ());
+
+ post_processing (mod, scm_makfrom0str (file_name.to_str0 ()));
+ }
+ }
+ progress_indication ("\n");
}
void
Paper_book::classic_output (String outname)
{
- int count = scores_.size ();
- Paper_outputter *out = papers_.top ()->get_paper_outputter (outname);
- out->output_header (papers_.top (), scopes (count - 1), 0, true);
-
- Paper_line *first = unsmob_paper_line (scm_vector_ref (scores_.top (),
- scm_int2num (0)));
- Offset o (0, -0.5 * first->dim ()[Y_AXIS]);
- int line_count = SCM_VECTOR_LENGTH ((SCM) scores_.top ());
- for (int i = 0; i < line_count; i++)
+ /* Generate all stencils to trigger font loads. */
+ systems ();
+
+ // ugh code dup
+ SCM scopes = SCM_EOL;
+ if (ly_c_module_p (header_))
+ scopes = scm_cons (header_, scopes);
+
+ if (ly_c_module_p (score_systems_[0].header_))
+ scopes = scm_cons (score_systems_[0].header_, scopes);
+ //end ugh
+
+ Array<String> output_formats = split_string (output_format_global, ',');
+
+ for (int i = 0; i < output_formats.size (); i++)
{
- /*
- In classic compatibility TeX tracks how large things are, and
- advances the Y pos for us. If we advance it too, we get too
- much space.
- */
- if (output_format_global == "tex")
- o = Offset (0,0);
+ String format = output_formats[i];
+ String mod_nm = "scm framework-" + format;
+
+ SCM mod = scm_c_resolve_module (mod_nm.to_str0 ());
+ SCM func = scm_c_module_lookup (mod, "output-classic-framework");
+ func = scm_variable_ref (func);
- out->output_line (scm_vector_ref ((SCM) scores_.top (),
- scm_int2num (i)),
- &o, i == line_count - 1);
+ Paper_outputter *out = get_paper_outputter (outname + "." + format,
+ format);
+
+ scm_apply_0 (func, scm_list_n (out->self_scm (), self_scm (), scopes,
+ dump_fields (),
+ scm_makfrom0str (outname.to_str0 ()),
+ SCM_UNDEFINED));
+
+ scm_gc_unprotect_object (out->self_scm ());
+ progress_indication ("\n");
}
+}
+
+LY_DEFINE (ly_paper_book_pages, "ly:paper-book-pages",
+ 1, 0, 0, (SCM pb),
+ "Return pages in book PB.")
+{
+ return unsmob_paper_book(pb)->pages ();
+}
+
+LY_DEFINE (ly_paper_book_scopes, "ly:paper-book-scopes",
+ 1, 0, 0, (SCM book),
+ "Return pages in layout book @var{book}.")
+{
+ Paper_book *pb = unsmob_paper_book(book);
+ SCM_ASSERT_TYPE(pb, book, SCM_ARG1, __FUNCTION__, "Paper_book");
- out->output_scheme (scm_list_1 (ly_symbol2scm ("end-output")));
- progress_indication ("\n");
+ SCM scopes = SCM_EOL;
+ if (ly_c_module_p (pb->header_))
+ scopes = scm_cons (pb->header_, scopes);
+
+ return scopes;
}
+LY_DEFINE (ly_paper_book_systems, "ly:paper-book-systems",
+ 1, 0, 0, (SCM pb),
+ "Return systems in book PB.")
+{
+ return unsmob_paper_book (pb)->systems ();
+}
-/* calculate book height, #lines, stencils. */
-void
-Paper_book::init ()
+LY_DEFINE (ly_paper_book_paper, "ly:paper-book-paper",
+ 1, 0, 0, (SCM pb),
+ "Return pages in book PB.")
{
- int score_count = scores_.size ();
+ return unsmob_paper_book (pb)->paper_->self_scm ();
+}
- /* Calculate the full book height. Hmm, can't we cache system
- heights while making stencils? */
- height_ = 0;
- for (int i = 0; i < score_count; i++)
- {
- Stencil *title = this->title (i);
- if (title)
- height_ += title->extent (Y_AXIS).length ();
+/* TODO: resurrect more complex user-tweaks for titling? */
+Stencil
+Paper_book::book_title ()
+{
+ SCM title_func = paper_->lookup_variable (ly_symbol2scm ("book-title"));
+ Stencil title;
- int line_count = SCM_VECTOR_LENGTH ((SCM) scores_[i]);
- for (int j = 0; j < line_count; j++)
- {
- SCM s = scm_vector_ref ((SCM) scores_[i], scm_int2num (j));
- height_ += unsmob_paper_line (s)->dim ()[Y_AXIS];
- }
- }
+ SCM scopes = SCM_EOL;
+ if (ly_c_module_p (header_))
+ scopes = scm_cons (header_, scopes);
+
+
+ SCM tit = SCM_EOL;
+ if (ly_c_procedure_p (title_func))
+ tit = scm_call_2 (title_func,
+ paper_->self_scm (),
+ scopes);
- Paper_def *paper = papers_[0];
- SCM scopes = this->scopes (0);
-
- SCM make_tagline = ly_scheme_function ("make-tagline");
- tagline_ = scm_call_2 (make_tagline, paper->self_scm (), scopes);
- Real tag_height = 0;
- if (Stencil *s = unsmob_stencil (tagline_))
- tag_height = s->extent (Y_AXIS).length ();
- height_ += tag_height;
-
- SCM make_copyright = ly_scheme_function ("make-copyright");
- copyright_ = scm_call_2 (make_copyright, paper->self_scm (), scopes);
- Real copy_height = 0;
- if (Stencil *s = unsmob_stencil (copyright_))
- copy_height = s->extent (Y_AXIS).length ();
- height_ += copy_height;
+ if (unsmob_stencil (tit))
+ title = *unsmob_stencil (tit);
+
+ if (!title.is_empty ())
+ title.align_to (Y_AXIS, UP);
+
+ return title;
}
+Stencil
+Paper_book::score_title (int i)
+{
+ SCM title_func = paper_->lookup_variable (ly_symbol2scm ("score-title"));
+
+ Stencil title;
+
+ // ugh code dup
+ SCM scopes = SCM_EOL;
+ if (ly_c_module_p (header_))
+ scopes = scm_cons (header_, scopes);
+
+ if (ly_c_module_p (score_systems_[i].header_))
+ scopes = scm_cons (score_systems_[i].header_, scopes);
+ //end ugh
+
+ SCM tit = SCM_EOL;
+ if (ly_c_procedure_p (title_func))
+ tit = scm_call_2 (title_func,
+ paper_->self_scm (),
+ scopes);
+
+ if (unsmob_stencil (tit))
+ title = *unsmob_stencil (tit);
+
+ if (!title.is_empty ())
+ title.align_to (Y_AXIS, UP);
+
+ return title;
+}
+
SCM
-Paper_book::lines ()
+Paper_book::systems ()
{
- int score_count = scores_.size ();
- SCM lines = SCM_EOL;
+ if (systems_ != SCM_BOOL_F)
+ return systems_;
+
+ systems_ = SCM_EOL;
+ Stencil title = book_title ();
+
+ if (!title.is_empty ())
+ {
+ Paper_system *ps = new Paper_system (title, true);
+ systems_ = scm_cons (ps->self_scm (), systems_);
+ scm_gc_unprotect_object (ps->self_scm ());
+ }
+
+ int score_count = score_systems_.size ();
for (int i = 0; i < score_count; i++)
{
- if (Stencil *title = this->title (i))
- lines = ly_snoc (stencil2line (title, true), lines);
- lines = scm_append (scm_list_2 (lines, scm_vector_to_list (scores_[i])));
+ Stencil title = score_title (i);
+ if (!title.is_empty ())
+ {
+ Paper_system *ps = new Paper_system (title, true);
+ systems_ = scm_cons (ps->self_scm (), systems_);
+ scm_gc_unprotect_object (ps->self_scm ());
+ }
+
+ if (scm_vector_p (score_systems_[i].systems_) == SCM_BOOL_T)
+ {
+ // guh.
+ SCM system_list = scm_vector_to_list (score_systems_[i].systems_);
+
+ system_list = scm_reverse (system_list);
+ systems_ = scm_append (scm_list_2 (system_list, systems_));
+ }
}
- //debug helper; ughr
+
+ systems_ = scm_reverse (systems_);
+
int i = 0;
- for (SCM s = lines; s != SCM_EOL; s = ly_cdr (s))
- unsmob_paper_line (ly_car (s))->number_ = ++i;
- return lines;
+ Paper_system *last = 0;
+ for (SCM s = systems_; s != SCM_EOL; s = scm_cdr (s))
+ {
+ Paper_system *ps = unsmob_paper_system (scm_car (s));
+ ps->number_ = ++i;
+
+ if (last && last->is_title ())
+ // ugh, hardcoded.
+ ps->penalty_ = 10000;
+ last = ps;
+ }
+
+ return systems_;
}
-Link_array<Page>*
+SCM
Paper_book::pages ()
{
- init ();
- Page::page_count_ = 0;
- Paper_def *paper = papers_[0];
- Page *page = new Page (paper, 1);
-
- Real text_height = page->text_height ();
-
- Real copy_height = 0;
- if (Stencil *s = unsmob_stencil (copyright_))
- copy_height = s->extent (Y_AXIS).length ();
-
- Real tag_height = 0;
- if (Stencil *s = unsmob_stencil (tagline_))
- tag_height = s->extent (Y_AXIS).length ();
-
- SCM all = lines ();
- SCM proc = paper->get_scmvar ("page-breaking");
- SCM breaks = scm_apply_0 (proc, scm_list_n (all, scm_make_real (height_),
- scm_make_real (text_height),
- scm_make_real (-copy_height),
- scm_make_real (-tag_height),
- SCM_UNDEFINED));
-
- /* Copyright on first page. */
- if (unsmob_stencil (copyright_))
- page->copyright_ = copyright_;
-
- Link_array<Page> *pages = new Link_array<Page>;
- int page_count = SCM_VECTOR_LENGTH ((SCM) breaks);
- int line = 1;
- for (int i = 0; i < page_count; i++)
- {
- if (i)
- page = new Page (paper, i+1);
- int next = i + 1 < page_count
- ? ly_scm2int (scm_vector_ref (breaks, scm_int2num (i))) : 0;
- while ((!next && all != SCM_EOL) || line <= next)
- {
- SCM s = ly_car (all);
- page->lines_ = ly_snoc (s, page->lines_);
- page->height_ += unsmob_paper_line (s)->dim ()[Y_AXIS];
- page->line_count_++;
- all = ly_cdr (all);
- line++;
- }
- pages->push (page);
- }
+ if (SCM_BOOL_F != pages_)
+ return pages_;
- /* Tagline on last page. */
- if (unsmob_stencil (tagline_))
- page->tagline_ = tagline_;
-
- return pages;
+ pages_ = SCM_EOL;
+ SCM proc = paper_->c_variable ("page-breaking");
+ pages_ = scm_apply_0 (proc, scm_list_2 (systems (), self_scm ()));
+ return pages_;
}
-static SCM
-c_ragged_page_breaks (SCM lines, Real book_height, Real text_height,
- Real first, Real last)
-{
- int page_number = 0;
- int page_count = int (book_height / text_height + 0.5);
- SCM breaks = SCM_EOL;
- Real page_height = text_height + first;
- Real h = 0;
- int number = 0;
- for (SCM s = lines; s != SCM_EOL; s = ly_cdr (s))
- {
- Paper_line *pl = unsmob_paper_line (ly_car (s));
- if (!pl->is_title () && h < page_height)
- number++;
- h += pl->dim ()[Y_AXIS];
- if (!pl->is_title () && h > page_height)
- {
- breaks = ly_snoc (scm_int2num (number), breaks);
- page_number++;
- page_height = text_height + (page_number == page_count) * last;
- h = 0;
- }
- if (ly_cdr (s) == SCM_EOL)
- breaks = ly_snoc (scm_int2num (pl->number_), breaks);
- }
- return scm_vector (breaks);
+/****************************************************************/
+
+Score_systems::Score_systems ()
+{
+ systems_ = SCM_EOL;
+ header_ = SCM_EOL;
}
-LY_DEFINE (ly_ragged_page_breaks, "ly:ragged-page-breaks",
- 5, 0, 0, (SCM lines, SCM book, SCM text, SCM first, SCM last),
- "Return a vector with line numbers of page breaks.")
+void
+Score_systems::gc_mark ()
{
- SCM_ASSERT_TYPE (scm_pair_p (lines), lines, SCM_ARG1, __FUNCTION__, "list");
- SCM_ASSERT_TYPE (is_number (book), book, SCM_ARG2, __FUNCTION__, "real");
- SCM_ASSERT_TYPE (is_number (text), text, SCM_ARG2, __FUNCTION__, "real");
- SCM_ASSERT_TYPE (is_number (first), first, SCM_ARG2, __FUNCTION__, "real");
- SCM_ASSERT_TYPE (is_number (last), last, SCM_ARG2, __FUNCTION__, "real");
-
- return c_ragged_page_breaks (lines,
- ly_scm2double (book), ly_scm2double (text),
- ly_scm2double (first), ly_scm2double (last));
+ scm_gc_mark (systems_);
+ scm_gc_mark (header_);
}
+
projects / lilypond.git / blobdiff