Merge branch 'master' of ssh://git.sv.gnu.org/srv/git/lilypond

[lilypond.git] / lily / skyline.cc

diff --git a/lily/skyline.cc b/lily/skyline.cc
index a3047a98bbcefffe4c071df3fa49618ee9ddc453..d8105e669b910eaadc3fe8e34286ae9d613c8e50 100644 (file)
--- a/lily/skyline.cc
+++ b/lily/skyline.cc
@@ -1,8 +1,20 @@
-/* skyline.cc -- implement the Skyline class
+/*
+  This file is part of LilyPond, the GNU music typesetter.
 
-   source file of the GNU LilyPond music typesetter
- 
-   (c) 2006--2009 Joe Neeman <joeneeman@gmail.com>
+  Copyright (C) 2006--2010 Joe Neeman <joeneeman@gmail.com>
+
+  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.hh"
@@ -542,6 +554,12 @@ Skyline::is_empty () const
   return b.end_ == infinity_f && b.y_intercept_ == -infinity_f;
 }
 
+void
+Skyline::clear ()
+{
+  buildings_.clear ();
+  empty_skyline (&buildings_);
+}
 
 /****************************************************************/