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+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Rosegarden
+    A MIDI and audio sequencer and musical notation editor.
+
+    This program is Copyright 2000-2008
+        Guillaume Laurent   <[email protected]>,
+        Chris Cannam        <[email protected]>,
+        Richard Bown        <[email protected]>
+
+    The moral rights of Guillaume Laurent, Chris Cannam, and Richard
+    Bown to claim authorship of this work have been asserted.
+
+    Other copyrights also apply to some parts of this work.  Please
+    see the AUTHORS file and individual file headers for details.
+
+    This program 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 (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#ifndef _RG_ELEMENTADAPTER_H_
+#define _RG_ELEMENTADAPTER_H_
+
+#include "base/Event.h"
+
+namespace Rosegarden {
+
+class ElementAdapter
+{
+public:
+    virtual ~ElementAdapter() {};
+
+    virtual bool   getValue(long&) = 0;
+    virtual void   setValue(long)  = 0;
+    virtual timeT  getTime()       = 0;
+    virtual timeT  getDuration()   = 0;
+    virtual Event* getEvent()      = 0;
+};
+
+}
+
+#endif /*ELEMENTADAPTER_H_*/