/*
- paper-score.cc -- implement Paper_score
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1996--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1996--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
+#include "paper-score.hh"
+
#include "all-font-metrics.hh"
-#include "font-metric.hh"
-#include "gourlay-breaking.hh"
-#include "ly-module.hh"
+#include "book.hh"
+#include "international.hh"
#include "main.hh"
#include "misc.hh"
#include "output-def.hh"
#include "paper-book.hh"
#include "paper-column.hh"
-#include "paper-score.hh"
#include "scm-hash.hh"
#include "score.hh"
-#include "spanner.hh"
#include "stencil.hh"
#include "system.hh"
#include "warn.hh"
+#include "constrained-breaking.hh"
-Paper_score::Paper_score ()
+Paper_score::Paper_score (Output_def *layout)
{
- paper_ = 0;
+ layout_ = layout;
system_ = 0;
+ systems_ = SCM_EOL;
+ paper_systems_ = SCM_BOOL_F;
}
Paper_score::Paper_score (Paper_score const &s)
}
void
-Paper_score::typeset_line (System *system)
+Paper_score::derived_mark () const
+{
+ if (layout_)
+ scm_gc_mark (layout_->self_scm ());
+ scm_gc_mark (systems_);
+ scm_gc_mark (paper_systems_);
+}
+
+void
+Paper_score::typeset_system (System *system)
{
if (!system_)
system_ = system;
systems_ = scm_cons (system->self_scm (), systems_);
system->pscore_ = this;
+ system->layout_ = layout_;
+ system->unprotect ();
+}
+
+void
+Paper_score::find_break_indices () const
+{
+ cols_ = root_system ()->used_columns ();
+ break_indices_.clear ();
+ break_ranks_.clear ();
+
+ for (vsize i = 0; i < cols_.size (); i++)
+ {
+ Item *it = dynamic_cast<Item *> (cols_[i]);
+ if (Paper_column::is_breakable (cols_[i])
+ && (i == 0 || it->find_prebroken_piece (LEFT))
+ && (i == cols_.size () - 1 || it->find_prebroken_piece (RIGHT)))
+ {
+ break_indices_.push_back (i);
+ break_ranks_.push_back (it->get_column ()->get_rank ());
+ }
+ }
+}
+
+vector<vsize>
+Paper_score::get_break_indices () const
+{
+ if (break_indices_.empty ())
+ find_break_indices ();
+ return break_indices_;
+}
+
+vector<Grob *>
+Paper_score::get_columns () const
+{
+ if (cols_.empty ())
+ find_break_indices ();
+ return cols_;
+}
- scm_gc_unprotect_object (system->self_scm ());
+vector<vsize>
+Paper_score::get_break_ranks () const
+{
+ if (break_ranks_.empty ())
+ find_break_indices ();
+ return break_ranks_;
}
-Array<Column_x_positions>
+vector<Column_x_positions>
Paper_score::calc_breaking ()
{
- Break_algorithm *algorithm = 0;
- Array<Column_x_positions> sol;
+ Constrained_breaking algorithm (this);
+ vector<Column_x_positions> sol;
+
+ message (_ ("Calculating line breaks...") + " ");
- algorithm = new Gourlay_breaking ;
- algorithm->set_pscore (this);
- sol = algorithm->solve ();
- delete algorithm;
+ int system_count = robust_scm2int (layout ()->c_variable ("system-count"), 0);
+ if (system_count)
+ return algorithm.solve (0, VPOS, system_count);
- return sol;
+ return algorithm.best_solution (0, VPOS);
}
-SCM
-Paper_score::process (String)
+void
+Paper_score::process ()
{
- if (verbose_global_b)
- progress_indication (_f ("Element count %d (spanners %d) ",
- system_->element_count (),
- system_->spanner_count ()));
-
- progress_indication (_ ("Preprocessing graphical objects...") + " ");
-
- /* FIXME: Check out why we need this - removing gives assertion failures
- down the road.
-
- doubly, also done in Score_engraver */
- Link_array<Grob> pc (system_->columns ());
- pc[0]->set_property ("breakable", SCM_BOOL_T);
- pc.top ()->set_property ("breakable", SCM_BOOL_T);
-
+ debug_output (_f ("Element count %d (spanners %d) ",
+ system_->element_count (),
+ system_->spanner_count ()));
+
+ message (_ ("Preprocessing graphical objects..."));
+
system_->pre_processing ();
-
- Array<Column_x_positions> breaking = calc_breaking ();
- system_->break_into_pieces (breaking);
- SCM lines = system_->get_lines ();
-#if 0
- /* gourlay:do_solve also prints newline. */
- progress_indication ("\n");
-#endif
-
- /* Only keep result stencils in lines_, *title_; delete all grobs. */
- systems_ = SCM_EOL;
-
- return lines;
+}
+
+System *
+Paper_score::root_system () const
+{
+ return system_;
+}
+
+Output_def *
+Paper_score::layout () const
+{
+ return layout_;
+}
+
+SCM
+Paper_score::get_paper_systems ()
+{
+ if (paper_systems_ == SCM_BOOL_F)
+ {
+ vector<Column_x_positions> breaking = calc_breaking ();
+ system_->break_into_pieces (breaking);
+ message (_ ("Drawing systems...") + " ");
+ system_->do_break_substitution_and_fixup_refpoints ();
+ paper_systems_ = system_->get_paper_systems ();
+ }
+ return paper_systems_;
+}
+
+Paper_score *
+unsmob_paper_score (SCM x)
+{
+ return dynamic_cast<Paper_score *> (unsmob_music_output (x));
}
projects / lilypond.git / blobdiff