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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 _SEQUENCERMAPPER_H_
+#define _SEQUENCERMAPPER_H_
+
+#include "sound/SequencerDataBlock.h"
+#include "base/RealTime.h"
+
+namespace Rosegarden
+{
+
+class MappedEvent;
+class MappedComposition;
+
+
+class SequencerMmapper
+{
+public:
+    SequencerMmapper();
+    ~SequencerMmapper();
+    
+    void updatePositionPointer(RealTime time) {
+        m_sequencerDataBlock->setPositionPointer(time);
+    }
+
+    void updateVisual(MappedEvent *ev) {
+        m_sequencerDataBlock->setVisual(ev);
+    }
+
+    void updateRecordingBuffer(MappedComposition *mC) {
+        m_sequencerDataBlock->addRecordedEvents(mC);
+    }
+
+    void setTrackLevel(TrackId track, const LevelInfo &info) {
+        m_sequencerDataBlock->setTrackLevel(track, info);
+    }
+
+    void setInstrumentLevel(InstrumentId id,
+                            const LevelInfo &info) {
+        m_sequencerDataBlock->setInstrumentLevel(id, info);
+    }
+
+    void setInstrumentRecordLevel(InstrumentId id,
+                                  const LevelInfo &info) {
+        m_sequencerDataBlock->setInstrumentRecordLevel(id, info);
+    }
+
+    void setSubmasterLevel(int submaster,
+                           const LevelInfo &info) {
+        m_sequencerDataBlock->setSubmasterLevel(submaster, info);
+    }
+
+    void setMasterLevel(const LevelInfo &info) {
+        m_sequencerDataBlock->setMasterLevel(info);
+    }
+
+    SequencerDataBlock *getSequencerDataBlock() {
+        return m_sequencerDataBlock;
+    }
+    void setControlBlock(ControlBlock *cb) {
+        m_sequencerDataBlock->setControlBlock(cb);
+    }
+
+protected:
+    void init();
+    void setFileSize(size_t);
+    QString createFileName();
+
+    //--------------- Data members ---------------------------------
+    //
+    QString               m_fileName;
+    int                   m_fd;
+    void*                 m_mmappedBuffer;
+    size_t                m_mmappedSize;
+    SequencerDataBlock *m_sequencerDataBlock;
+};
+
+}
+
+#endif // _SEQUENCERMAPPER_H_