-/*
- directional-element.cc -- implement Directional_element
-
- source file of the GNU LilyPond music typesetter
-
- (c) 1999--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+/*
+ This file is part of LilyPond, the GNU music typesetter.
-#include "directional-element-interface.hh"
+ Copyright (C) 1999--2015 Han-Wen Nienhuys <hanwen@xs4all.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.
-SCM Directional_element_interface::direction_sym;
+ 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.
-static void
-init_functions ()
-{
- Directional_element_interface::direction_sym = scm_permanent_object (ly_symbol2scm ("direction"));
-}
-ADD_SCM_INIT_FUNC(Directional, init_functions);
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+*/
-
-bool
-Directional_element_interface::has_interface (Score_element*me)
-{
- return isdir_b (me->get_elt_property (direction_sym));
-}
+#include "directional-element-interface.hh"
+#include "warn.hh"
+#include "grob.hh"
Direction
-Directional_element_interface::get (Score_element*me)
+get_grob_direction (Grob *me)
{
- // return dir_;
- SCM d= me->get_elt_property (direction_sym);
- if (!isdir_b(d))
+ 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;
-
+
return to_dir (d);
}
void
-Directional_element_interface::set (Score_element*me, Direction d)
+set_grob_direction (Grob *me, Direction d)
{
- SCM sd = gh_int2scm (d);
-
- if (me->get_elt_property (direction_sym) != sd)
- me->set_elt_property (direction_sym, sd);
+ SCM sd = scm_from_int (d);
+ me->set_property ("direction", sd);
}