lily/page-breaking-scheme.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 2006--2010 Joe Neeman <joeneeman@gmail.com>
   5
   6   LilyPond is free software: you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published by
   8   the Free Software Foundation, either version 3 of the License, or
   9   (at your option) any later version.
  10
  11   LilyPond is distributed in the hope that it will be useful,
  12   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14   GNU General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "paper-book.hh"
  21 #include "page-turn-page-breaking.hh"
  22 #include "optimal-page-breaking.hh"
  23 #include "minimal-page-breaking.hh"
  24
  25 LY_DEFINE (ly_page_turn_breaking, "ly:page-turn-breaking",
  26            1, 0, 0, (SCM pb),
  27            "Optimally break (pages and lines) the @code{Paper_book} object"
  28            " @var{pb} such that page turns only happen in specified places,"
  29            " returning its pages.")
  30 {
  31   Page_turn_page_breaking b (unsmob_paper_book (pb));
  32   return b.solve ();
  33 }
  34
  35 LY_DEFINE (ly_optimal_breaking, "ly:optimal-breaking",
  36            1, 0, 0, (SCM pb),
  37            "Optimally break (pages and lines) the @code{Paper_book} object"
  38            " @var{pb} to minimize badness in bother vertical and horizontal"
  39            " spacing.")
  40 {
  41   Optimal_page_breaking b (unsmob_paper_book (pb));
  42   return b.solve ();
  43 }
  44
  45 LY_DEFINE (ly_minimal_breaking, "ly:minimal-breaking",
  46            1, 0, 0, (SCM pb),
  47            "Break (pages and lines) the @code{Paper_book} object @var{pb}"
  48            " without looking for optimal spacing: stack as many lines on"
  49            " a page before moving to the next one.")
  50 {
  51   Minimal_page_breaking b (unsmob_paper_book (pb));
  52   return b.solve ();
  53 }