lily/paper-system.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 2004--2010 Jan Nieuwenhuizen <janneke@gnu.org>
   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-system.hh"
  21 #include "item.hh"
  22
  23 Prob *
  24 make_paper_system (SCM immutable_init)
  25 {
  26   Prob *prob = new Prob (ly_symbol2scm ("paper-system"), immutable_init);
  27   return prob;
  28 }
  29
  30 void
  31 paper_system_set_stencil (Prob *prob, Stencil s)
  32 {
  33   SCM yext = prob->get_property ("Y-extent");
  34
  35   if (is_number_pair (yext))
  36     {
  37       Box b = s.extent_box ();
  38       b[Y_AXIS] = ly_scm2interval (yext);
  39
  40       s = Stencil (b, s.expr ());
  41     }
  42
  43   prob->set_property ("stencil", s.smobbed_copy ());
  44 }