--- /dev/null
+/*
+ This file is part of LilyPond, the GNU music typesetter.
+
+ Copyright (C) 2012 Joe Neeman <joeneeman@gmail.com>
+
+ 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/>.
+*/
+
+#ifndef ONE_LINE_AUTO_HEIGHT_BREAKING_HH
+#define ONE_LINE_AUTO_HEIGHT_BREAKING_HH
+
+#include "page-breaking.hh"
+#include "page-spacing.hh"
+
+class One_line_auto_height_breaking: public Page_breaking
+{
+public:
+ virtual SCM solve ();
+
+ One_line_auto_height_breaking (Paper_book *pb);
+ virtual ~One_line_auto_height_breaking ();
+};
+
+#endif /* ONE_LINE_AUTO_HEIGHT_BREAKING_HH */
--- /dev/null
+/*
+ This file is part of LilyPond, the GNU music typesetter.
+
+ Copyright (C) 2012 Joe Neeman <joeneeman@gmail.com>
+
+ 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 "one-line-auto-height-breaking.hh"
+
+#include <limits>
+
+#include "column-x-positions.hh"
+#include "international.hh"
+#include "output-def.hh"
+#include "page-spacing.hh"
+#include "paper-book.hh"
+#include "paper-score.hh"
+#include "simple-spacer.hh"
+#include "system.hh"
+
+One_line_auto_height_breaking::One_line_auto_height_breaking (Paper_book *pb)
+ : Page_breaking (pb, 0, 0)
+{
+}
+
+One_line_auto_height_breaking::~One_line_auto_height_breaking ()
+{
+}
+
+/*
+ This is a somewhat unconventional page-breaking algorithm. Like
+ ly:one-line-breaking, every score is put on a single page, whose width
+ is enough to fit the entire score on one line. Line breaks and page
+ breaks are ignored, and the paper-width setting in the paper
+ block is modified to fit the music. Unlike ly:one-line-breaking
+ the paper-height setting in the paper block is also modified to fit
+ the music.
+*/
+SCM
+One_line_auto_height_breaking::solve ()
+{
+ SCM all_pages = SCM_EOL;
+ Real max_width = 0;
+ Real max_height = 0;
+
+ for (vsize i = 0; i < system_specs_.size (); ++i)
+ {
+ if (Paper_score *ps = system_specs_[i].pscore_)
+ {
+ vector<Grob *> cols = ps->root_system ()->used_columns ();
+
+ // No indent, "infinite" line width, ragged.
+ Column_x_positions pos = get_line_configuration (cols, numeric_limits<Real>::max (), 0, true);
+ vector<Column_x_positions> positions;
+ positions.push_back (pos);
+
+ ps->root_system ()->break_into_pieces (positions);
+ ps->root_system ()->do_break_substitution_and_fixup_refpoints ();
+ Grob *system = ps->root_system ()->broken_intos_[0];
+
+ vector<vsize> lines_per_page;
+ lines_per_page.push_back (1);
+ SCM systems = scm_list_1 (system->self_scm ());
+ SCM pages = make_pages (lines_per_page, systems);
+
+ max_width = max (max_width, system->extent (system, X_AXIS).length ());
+ max_height = max (max_height, system->extent (system, Y_AXIS).length ());
+ all_pages = scm_cons (scm_car (pages), all_pages);
+ }
+ else if (Prob *pb = system_specs_[i].prob_)
+ // Because we don't call Page_breaking::systems in this algorithm,
+ // we need to manually unprotect the titles.
+ pb->unprotect ();
+ }
+
+ // Alter paper-width so that it is large enough to fit every system.
+ // TODO: it might be nice to allow different pages to have different widths
+ // and heights. This would need support in the backends (eg. framework-ps.scm).
+ Real right_margin = robust_scm2double (book_->paper_->c_variable ("right-margin"), 0.0);
+ Real left_margin = robust_scm2double (book_->paper_->c_variable ("left-margin"), 0.0);
+ Real width = max_width + right_margin + left_margin;
+ book_->paper_->set_variable (ly_symbol2scm ("paper-width"), scm_from_double (width));
+
+ // Alter paper-height so that it fits the height of the tallest system.
+ Real top_margin = robust_scm2double (book_->paper_->c_variable ("top-margin"), 0.0);
+ Real bottom_margin = robust_scm2double (book_->paper_->c_variable ("bottom-margin"), 0.0);
+ Real height = max_height + top_margin + bottom_margin;
+ book_->paper_->set_variable (ly_symbol2scm ("paper-height"), scm_from_double (height));
+
+ return scm_reverse_x (all_pages, SCM_EOL);
+}
#include "paper-book.hh"
#include "page-turn-page-breaking.hh"
#include "one-line-page-breaking.hh"
+#include "one-line-auto-height-breaking.hh"
#include "optimal-page-breaking.hh"
#include "minimal-page-breaking.hh"
LY_DEFINE (ly_one_line_breaking, "ly:one-line-breaking",
1, 0, 0, (SCM pb),
"Put each score on a single line, and put each line on its own"
- " page. The paper-width setting will be modified so that"
- " every page will be wider than the widest line.")
+ " page. Modify the paper-width setting so that every page"
+ " is wider than the widest line.")
{
One_line_page_breaking b (unsmob<Paper_book> (pb));
return b.solve ();
}
+
+LY_DEFINE (ly_one_line_auto_height_breaking, "ly:one-line-auto-height-breaking",
+ 1, 0, 0, (SCM pb),
+ "Put each score on a single line, and put each line on its own"
+ " page. Modify the paper-width setting so that every page"
+ " is wider than the widest line. Modify the paper-height"
+ " setting to fit the height of the tallest line.")
+{
+ One_line_auto_height_breaking b (unsmob<Paper_book> (pb));
+ return b.solve ();
+}
projects / lilypond.git / commitdiff