source file of the GNU LilyPond music typesetter
- (c) 2004 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 2004--2006 Jan Nieuwenhuizen <janneke@gnu.org>
*/
-#include <stdio.h>
-#include <math.h>
+#include "paper-book.hh"
-#include "ly-module.hh"
#include "main.hh"
-#include "paper-book.hh"
-#include "paper-def.hh"
-#include "paper-outputter.hh"
-#include "paper-line.hh"
+#include "output-def.hh"
#include "paper-score.hh"
-#include "stencil.hh"
+#include "paper-system.hh"
+#include "text-interface.hh"
+#include "warn.hh"
-static Real const MIN_COVERAGE = 0.66;
+#include "ly-smobs.icc"
-static SCM
-stencil2line (Stencil* stil, bool is_title = false)
+Paper_book::Paper_book ()
{
- 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 ());
+ header_ = SCM_EOL;
+ header_0_ = SCM_EOL;
+ pages_ = SCM_BOOL_F;
+ scores_ = SCM_EOL;
+ performances_ = SCM_EOL;
+ systems_ = SCM_BOOL_F;
+
+ paper_ = 0;
+ smobify_self ();
}
-/* Simplistic page interface */
-class Page
+Paper_book::~Paper_book ()
{
-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)
+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_ = 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);
+ Paper_book *b = (Paper_book *) SCM_CELL_WORD_1 (smob);
+ if (b->paper_)
+ scm_gc_mark (b->paper_->self_scm ());
+ scm_gc_mark (b->header_);
+ scm_gc_mark (b->header_0_);
+ scm_gc_mark (b->pages_);
+ scm_gc_mark (b->performances_);
+ scm_gc_mark (b->scores_);
+ return b->systems_;
}
-void
-Page::output (Paper_outputter *out, bool is_last)
+int
+Paper_book::print_smob (SCM smob, SCM port, scm_print_state*)
{
- 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 ("]");
+ Paper_book *b = (Paper_book *) SCM_CELL_WORD_1 (smob);
+ (void)b;
+ scm_puts ("#<Paper_book>", port);
+ return 1;
}
-Real
-Page::text_height ()
+SCM
+dump_fields ()
{
- 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;
+ SCM fields = SCM_EOL;
+ for (vsize i = dump_header_fieldnames_global.size (); i--;)
+ fields
+ = scm_cons (ly_symbol2scm (dump_header_fieldnames_global[i].c_str ()),
+ fields);
+ return fields;
}
-/****************************************************************/
-
-Paper_book::Paper_book ()
+void
+Paper_book::add_score (SCM s)
{
- copyright_ = SCM_EOL;
- tagline_ = SCM_EOL;
-
- smobify_self ();
+ scores_ = scm_cons (s, scores_);
}
-Paper_book::~Paper_book ()
+void
+Paper_book::add_performance (SCM s)
{
+ performances_ = scm_cons (s, performances_);
}
-#include "ly-smobs.icc"
+void
+Paper_book::output (SCM output_channel)
+{
+ if (scm_is_pair (performances_))
+ {
+ SCM proc = ly_lily_module_constant ("paper-book-write-midis");
-IMPLEMENT_DEFAULT_EQUAL_P (Paper_book);
-IMPLEMENT_SMOBS (Paper_book)
-IMPLEMENT_TYPE_P (Paper_book, "ly:paper-book?")
+ scm_call_2 (proc, self_scm (), output_channel);
+ }
-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_;
-}
+ if (scores_ == SCM_EOL)
+ return;
-int
-Paper_book::print_smob (SCM smob, SCM port, scm_print_state*)
-{
- Paper_book *b = (Paper_book*) ly_cdr (smob);
-
- scm_puts ("#<", port);
- scm_puts (classname (b), port);
- scm_puts (" ", port);
- //scm_puts (b->, port);
- scm_puts (">", port);
- return 1;
+ /* Generate all stencils to trigger font loads. */
+ pages ();
+
+ SCM scopes = SCM_EOL;
+ if (ly_is_module (header_))
+ scopes = scm_cons (header_, scopes);
+
+ string mod_nm = "scm framework-" + output_backend_global;
+
+ SCM mod = scm_c_resolve_module (mod_nm.c_str ());
+ if (make_print)
+ {
+ SCM func = scm_c_module_lookup (mod, "output-framework");
+
+ func = scm_variable_ref (func);
+ scm_apply_0 (func, scm_list_n (output_channel,
+ self_scm (),
+ scopes,
+ dump_fields (),
+ SCM_UNDEFINED));
+ }
+
+ if (make_preview)
+ {
+ SCM func = scm_c_module_lookup (mod, "output-preview-framework");
+ func = scm_variable_ref (func);
+ scm_apply_0 (func, scm_list_n (output_channel,
+ self_scm (),
+ scopes,
+ dump_fields (),
+ SCM_UNDEFINED));
+ }
}
void
-Paper_book::output (String outname)
+Paper_book::classic_output (SCM output)
{
- if (!papers_.size ())
- return;
-
/* Generate all stencils to trigger font loads. */
- Link_array<Page> *pages = this->pages ();
+ systems ();
- Paper_def *paper = papers_[0];
- Paper_outputter *out = paper->get_paper_outputter (outname);
- out->output_header (paper, scopes (0), pages->size (), false);
+ SCM scopes = SCM_EOL;
+ if (ly_is_module (header_))
+ scopes = scm_cons (header_, scopes);
- int page_count = pages->size ();
- for (int i = 0; i < page_count; i++)
- (*pages)[i]->output (out, i + 1 == page_count);
+ if (ly_is_module (header_0_))
+ scopes = scm_cons (header_0_, scopes);
- out->output_scheme (scm_list_1 (ly_symbol2scm ("end-output")));
+ string format = output_backend_global;
+ string mod_nm = "scm framework-" + format;
+
+ SCM mod = scm_c_resolve_module (mod_nm.c_str ());
+ SCM func = scm_c_module_lookup (mod, "output-classic-framework");
+
+ func = scm_variable_ref (func);
+ scm_apply_0 (func, scm_list_n (output,
+ self_scm (),
+ scopes,
+ dump_fields (),
+ SCM_UNDEFINED));
- /* Ugh. */
- for (int i = pages->size (); i--;)
- delete pages->elem (i);
- delete pages;
-
progress_indication ("\n");
}
-SCM
-Paper_book::scopes (int i)
+/* 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;
+
SCM scopes = SCM_EOL;
- if (headers_[i])
- scopes = scm_cons (headers_[i], scopes);
- if (global_headers_[i] && global_headers_[i] != headers_[i])
- scopes = scm_cons (global_headers_[i], scopes);
- return scopes;
-}
+ if (ly_is_module (header_))
+ scopes = scm_cons (header_, scopes);
+
+ SCM tit = SCM_EOL;
+ if (ly_is_procedure (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);
-Stencil*
-Paper_book::title (int i)
-{
- 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);
-
return title;
}
-void
-Paper_book::classic_output (String outname)
+Stencil
+Paper_book::score_title (SCM header)
{
- 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++)
- out->output_line (scm_vector_ref ((SCM) scores_.top (), scm_int2num (i)),
- &o, i == line_count - 1);
-
- out->output_scheme (scm_list_1 (ly_symbol2scm ("end-output")));
- progress_indication ("\n");
-}
+ SCM title_func = paper_->lookup_variable (ly_symbol2scm ("score-title"));
+ Stencil title;
+
+ SCM scopes = SCM_EOL;
+ if (ly_is_module (header_))
+ scopes = scm_cons (header_, scopes);
+
+ if (ly_is_module (header))
+ scopes = scm_cons (header, scopes);
+
+ SCM tit = SCM_EOL;
+ if (ly_is_procedure (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;
+}
-/* calculate book height, #lines, stencils. */
void
-Paper_book::init ()
+set_system_penalty (Prob *ps, SCM header)
{
- int score_count = scores_.size ();
-
- /* 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++)
+ if (ly_is_module (header))
{
- Stencil *title = this->title (i);
- if (title)
- height_ += title->extent (Y_AXIS).length ();
-
- int line_count = SCM_VECTOR_LENGTH ((SCM) scores_[i]);
- for (int j = 0; j < line_count; j++)
+ SCM force = ly_module_lookup (header, ly_symbol2scm ("breakbefore"));
+ if (SCM_VARIABLEP (force)
+ && scm_is_bool (SCM_VARIABLE_REF (force)))
{
- SCM s = scm_vector_ref ((SCM) scores_[i], scm_int2num (j));
- height_ += unsmob_paper_line (s)->dim ()[Y_AXIS];
+ ps->set_property ("penalty",
+ scm_from_int(to_boolean (SCM_VARIABLE_REF (force))
+ ? -10000
+ : 10000));
}
}
-
- 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;
}
+
SCM
-Paper_book::lines ()
+Paper_book::get_score_title (SCM header)
{
- int score_count = scores_.size ();
- SCM lines = SCM_EOL;
- for (int i = 0; i < score_count; i++)
+ Stencil title = score_title (header);
+ if (title.is_empty ())
+ title = score_title (header_);
+ if (!title.is_empty ())
{
- 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])));
+ /*
+ TODO: this should come from the \layout {} block, which should
+ override settings from \paper {}
+ */
+ SCM props = paper_->lookup_variable (ly_symbol2scm ("score-title-properties"));
+ Prob *ps = make_paper_system (props);
+ paper_system_set_stencil (ps, title);
+ set_system_penalty (ps, header);
+
+ return ps->self_scm();
}
- //debug helper; ughr
- int i = 0;
- for (SCM s = lines; s != SCM_EOL; s = ly_cdr (s))
- unsmob_paper_line (ly_car (s))->number_ = ++i;
- return lines;
+
+ return SCM_BOOL_F;
}
-Link_array<Page>*
-Paper_book::pages ()
+
+SCM
+Paper_book::get_system_specs ()
{
- 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++)
+ SCM system_specs = SCM_EOL;
+
+ Stencil title = book_title ();
+ if (!title.is_empty ())
{
- 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 props = paper_->lookup_variable (ly_symbol2scm ("book-title-properties"));
+ Prob *ps = make_paper_system (props);
+ paper_system_set_stencil (ps, title);
+ set_system_penalty (ps, header_);
+
+ system_specs = scm_cons (ps->self_scm (), system_specs);
+ ps->unprotect ();
+ }
+
+ SCM page_properties
+ = scm_call_1 (ly_lily_module_constant ("layout-extract-page-properties"),
+ paper_->self_scm ());
+
+ SCM header = SCM_EOL;
+ for (SCM s = scm_reverse (scores_); s != SCM_EOL; s = scm_cdr (s))
+ {
+ if (ly_is_module (scm_car (s)))
+ {
+ header = scm_car (s);
+ if (header_0_ == SCM_EOL)
+ header_0_ = header;
+ }
+ else if (Music_output *mop = unsmob_music_output (scm_car (s)))
{
- 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++;
+ if (Paper_score *pscore = dynamic_cast<Paper_score *> (mop))
+ {
+ SCM title = get_score_title (header);
+ if (unsmob_prob (title))
+ {
+ system_specs = scm_cons (title, system_specs);
+ unsmob_prob (title)->unprotect ();
+ }
+
+ header = SCM_EOL;
+ system_specs = scm_cons (pscore->self_scm (), system_specs);
+ }
+ else
+ {
+ /*
+ Ignore MIDI
+ */
+ }
}
- pages->push (page);
+ else if (Text_interface::is_markup (scm_car (s)))
+ {
+ SCM t = Text_interface::interpret_markup (paper_->self_scm (),
+ page_properties,
+ scm_car (s));
+
+ // TODO: init props
+ Prob *ps = make_paper_system (SCM_EOL);
+ paper_system_set_stencil (ps, *unsmob_stencil (t));
+ ps->set_property ("is-title", SCM_BOOL_T);
+ system_specs = scm_cons (ps->self_scm (), system_specs);
+ ps->unprotect ();
+
+ // FIXME: figure out penalty.
+ //set_system_penalty (ps, scores_[i].header_);
+ }
+ else
+ assert (0);
}
- /* Tagline on last page. */
- if (unsmob_stencil (tagline_))
- page->tagline_ = tagline_;
-
- return pages;
+ system_specs = scm_reverse_x (system_specs, SCM_EOL);
+ return system_specs;
}
-static SCM
-c_ragged_page_breaks (SCM lines, Real book_height, Real text_height,
- Real first, Real last)
+SCM
+Paper_book::systems ()
{
- 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))
+ if (systems_ != SCM_BOOL_F)
+ return systems_;
+
+ systems_ = SCM_EOL;
+ SCM specs = get_system_specs ();
+ for (SCM s = specs; scm_is_pair (s); s = scm_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)
+ if (Paper_score *pscore = dynamic_cast<Paper_score*> (unsmob_music_output (scm_car (s))))
+ {
+ SCM system_list = scm_vector_to_list (pscore->get_paper_systems ());
+ system_list = scm_reverse (system_list);
+ systems_ = scm_append (scm_list_2 (system_list, systems_));
+ }
+ else
{
- breaks = ly_snoc (scm_int2num (number), breaks);
- page_number++;
- page_height = text_height + (page_number == page_count) * last;
- h = 0;
+ systems_ = scm_cons (scm_car (s), systems_);
}
- if (ly_cdr (s) == SCM_EOL)
- breaks = ly_snoc (scm_int2num (pl->number_), breaks);
+ }
+
+ systems_ = scm_reverse (systems_);
+
+ int i = 0;
+ Prob *last = 0;
+ for (SCM s = systems_; s != SCM_EOL; s = scm_cdr (s))
+ {
+ Prob *ps = unsmob_prob (scm_car (s));
+ ps->set_property ("number", scm_from_int (++i));
+
+ if (last
+ && to_boolean (last->get_property ("is-title"))
+ && !scm_is_number (ps->get_property ("penalty")))
+ ps->set_property ("penalty", scm_from_int (10000));
+ last = ps;
}
- return scm_vector (breaks);
+ return systems_;
}
-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.")
+SCM
+Paper_book::pages ()
+{
+ if (SCM_BOOL_F != pages_)
+ 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_;
+}
+
+SCM
+Paper_book::performances () const
{
- 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));
+ return scm_reverse (performances_);
}
projects / lilypond.git / blobdiff