Web-ja: update introduction

[lilypond.git] / lily / directional-element-interface.cc

diff --git a/lily/directional-element-interface.cc b/lily/directional-element-interface.cc
index 98ea9b53f44a90d32cc3fb2f27cd5d4d584ff74b..eb342fe1ac1c89a01cbe50eeb734ce97444b2edb 100644 (file)
--- a/lily/directional-element-interface.cc
+++ b/lily/directional-element-interface.cc
@@ -1,9 +1,20 @@
 /*
-  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--2009 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.
+
+  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"
@@ -14,9 +25,10 @@ Direction
 get_grob_direction (Grob *me)
 {
   SCM d = me->get_property ("direction");
-  if (d == ly_symbol2scm ("calculation-in-progress"))
+  if (scm_is_eq (d, ly_symbol2scm ("calculation-in-progress")))
     {
-      programming_error ("Grob direction requested while calculation in progress. ");
+      programming_error ("Grob direction requested while calculation in"
+                         " progress.");
       return UP;
     }
   if (!is_direction (d))