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diff --git a/src/document/XmlSubHandler.h b/src/document/XmlSubHandler.h
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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_XMLSUBHANDLER_H_
+#define _RG_XMLSUBHANDLER_H_
+
+#include <qstring.h>
+#include <qxml.h>
+
+namespace Rosegarden {
+    
+class XmlSubHandler
+{
+public:
+    XmlSubHandler();
+    virtual ~XmlSubHandler();
+    
+    virtual bool startElement(const QString& namespaceURI,
+                              const QString& localName,
+                              const QString& qName,
+                              const QXmlAttributes& atts) = 0;
+
+    /**
+     * @param finished : if set to true on return, means that
+     * the handler should be deleted
+     */
+    virtual bool endElement(const QString& namespaceURI,
+                            const QString& localName,
+                            const QString& qName,
+                            bool& finished) = 0;
+
+    virtual bool characters(const QString& ch) = 0;
+};
+
+}
+
+#endif /*_RG_XMLSUBHANDLER_H_*/