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diff --git a/src/document/io/HydrogenXMLHandler.h b/src/document/io/HydrogenXMLHandler.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_HYDROGENXMLHANDLER_H_
+#define _RG_HYDROGENXMLHANDLER_H_
+
+#include "HydrogenLoader.h"
+#include "base/MidiProgram.h"
+#include "base/Track.h"
+#include <string>
+#include <qstring.h>
+#include <vector>
+#include <qxml.h>
+
+
+class QXmlAttributes;
+
+
+namespace Rosegarden
+{
+
+class Segment;
+class Composition;
+
+
+class HydrogenXMLHandler : public QXmlDefaultHandler
+{
+public:
+    HydrogenXMLHandler(Composition *comp,
+            InstrumentId drumInstrument = MidiInstrumentBase + 9);
+
+    /** 
+      * Overloaded handler functions
+      */
+    virtual bool startDocument();
+    virtual bool startElement(const QString& namespaceURI,
+                              const QString& localName,
+                              const QString& qName,
+                              const QXmlAttributes& atts);
+
+    virtual bool endElement(const QString& namespaceURI,
+                            const QString& localName,
+                            const QString& qName);
+
+    virtual bool characters(const QString& ch);
+
+    virtual bool endDocument ();
+
+protected:
+    Composition *m_composition;
+    InstrumentId m_drumInstrument;
+
+    bool                     m_inNote;
+    bool                     m_inInstrument;
+    bool                     m_inPattern;
+    bool                     m_inSequence;
+
+    // Pattern attributes
+    //
+    std::string              m_patternName;
+    int                      m_patternSize;
+
+    // Sequence attributes
+    //
+    std::string              m_sequenceName;
+
+    // Note attributes
+    //
+    int                      m_position;
+    double                   m_velocity;
+    double                   m_panL;
+    double                   m_panR;
+    double                   m_pitch;
+    int                      m_instrument;
+
+    // Instrument attributes
+    //
+    int                      m_id;
+    bool                     m_muted;
+    std::vector<double>      m_instrumentVolumes;
+    std::string              m_fileName;
+
+    // Global attributes
+    //
+    double                   m_bpm;
+    double                   m_volume;
+    std::string              m_name;
+    std::string              m_author;
+    std::string              m_notes;
+    bool                     m_songMode;  // Song mode or pattern mode?
+    std::string              m_version;
+
+    //
+    QString                  m_currentProperty;
+
+    Segment     *m_segment;
+    TrackId      m_currentTrackNb;
+    bool                     m_segmentAdded;
+    int                      m_currentBar;
+    bool                     m_newSegment;
+
+    SegmentMap               m_segmentMap;
+
+};
+
+
+
+}
+
+#endif