/*
- directional-element-interface.cc -- implement Directional_element
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1999--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1999--2005 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 "directional-element-interface.hh"
+#include "warn.hh"
+#include "grob.hh"
Direction
get_grob_direction (Grob *me)
{
SCM d = me->get_property ("direction");
+ if (scm_is_eq (d, ly_symbol2scm ("calculation-in-progress")))
+ {
+ programming_error ("Grob direction requested while calculation in"
+ " progress.");
+ return UP;
+ }
if (!is_direction (d))
return CENTER;