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+/*
+ *  The Mana World
+ *  Copyright 2004 The Mana World Development Team
+ *
+ *  This file is part of The Mana World.
+ *
+ *  The Mana World 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 2 of the License, or
+ *  any later version.
+ *
+ *  The Mana World 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 The Mana World; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ *  $Id$
+ */
+
+#ifndef _TMW_CONFIGLISTENER_H
+#define _TMW_CONFIGLISTENER_H
+
+#include <iosfwd>
+
+
+/**
+ * The listener interface for receiving notifications about changes to
+ * configuration options.
+ *
+ * \ingroup CORE
+ */
+class ConfigListener
+{
+    public:
+        /**
+         * Destructor.
+         */
+        virtual ~ConfigListener();
+
+        /**
+         * Called when an option changed. The config listener will have to be
+         * registered to the option name first.
+         */
+        virtual void optionChanged(const std::string &name) = 0;
+};
+
+#endif