Doc-de: updating running manual

[lilypond.git] / lily / skyline-pair.cc

diff --git a/lily/skyline-pair.cc b/lily/skyline-pair.cc
index 100061a19c01aeb1c59d1eb5e826c70fbafefa41..6f6b4e1b889b5bf0529c0069cfd374bfe507e98a 100644 (file)
--- a/lily/skyline-pair.cc
+++ b/lily/skyline-pair.cc
@@ -1,14 +1,26 @@
-/* 
-  skyline-pair.cc -- implement Skyline_pair
-  
-  source file of the GNU LilyPond music typesetter
-  
-  (c) 2008 Han-Wen Nienhuys <hanwen@lilypond.org>
-  
+/*
+  This file is part of LilyPond, the GNU music typesetter.
+
+  Copyright (C) 2008--2012 Han-Wen Nienhuys <hanwen@lilypond.org>
+
+
+  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 "skyline-pair.hh"
 
+#include "international.hh"
 #include "ly-smobs.icc"
 
 Skyline_pair::Skyline_pair ()
@@ -68,21 +80,20 @@ Skyline_pair::print_points () const
   skylines_[DOWN].print ();
 }
 
-
 bool
 Skyline_pair::is_empty () const
 {
   return skylines_[UP].is_empty ()
-    && skylines_[DOWN].is_empty ();
+         && skylines_[DOWN].is_empty ();
 }
 
-Skyline&
+Skyline &
 Skyline_pair::operator [] (Direction d)
 {
   return skylines_[d];
 }
 
-Skyline const&
+Skyline const &
 Skyline_pair::operator [] (Direction d) const
 {
   return skylines_[d];
@@ -107,3 +118,19 @@ Skyline_pair::print_smob (SCM s, SCM port, scm_print_state *)
   scm_puts ("#<Skyline-pair>", port);
   return 1;
 }
+
+MAKE_SCHEME_CALLBACK (Skyline_pair, skyline, 2);
+SCM
+Skyline_pair::skyline (SCM smob, SCM dir_scm)
+{
+  Skyline_pair *sp = Skyline_pair::unsmob (smob);
+  Direction dir = robust_scm2dir (dir_scm, UP);
+
+  if (dir == CENTER)
+    {
+      warning (_f ("direction must not be CENTER in ly:skyline-pair::skyline"));
+      dir = UP;
+    }
+
+  return (*sp)[dir].smobbed_copy ();
+}