lily/item-scheme.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 2005--2010 Han-Wen Nienhuys <hanwen@xs4all.nl>
   5
   6
   7   LilyPond is free software: you can redistribute it and/or modify
   8   it under the terms of the GNU General Public License as published by
   9   the Free Software Foundation, either version 3 of the License, or
  10   (at your option) any later version.
  11
  12   LilyPond is distributed in the hope that it will be useful,
  13   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15   GNU General Public License for more details.
  16
  17   You should have received a copy of the GNU General Public License
  18   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "item.hh"
  22
  23
  24 LY_DEFINE (ly_item_p, "ly:item?",
  25            1, 0, 0, (SCM g),
  26            "Is @var{g} an @code{Item} object?")
  27 {
  28   Grob *me = unsmob_grob (g);
  29   bool b = dynamic_cast<Item *> (me);
  30   return ly_bool2scm (b);
  31 }
  32
  33 LY_DEFINE (ly_item_break_dir, "ly:item-break-dir",
  34            1, 0, 0, (SCM it),
  35            "The break status direction of item @var{it}.  @code{-1} means"
  36            " end of line, @code{0}@tie{}unbroken, and"
  37            " @code{1}@tie{}beginning of line.")
  38 {
  39   LY_ASSERT_TYPE (unsmob_item, it, 1);
  40   Item *me = unsmob_item (it);
  41   return scm_from_int (me->break_status_dir ());
  42 }