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diff --git a/src/base/LegatoQuantizer.h b/src/base/LegatoQuantizer.h
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+// -*- c-basic-offset: 4 -*-
+
+/*
+    Rosegarden
+    A 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 right of the authors to claim authorship of this work
+    has been asserted.
+
+    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 LEGATO_QUANTIZER_H
+#define LEGATO_QUANTIZER_H
+
+#include "Quantizer.h"
+
+namespace Rosegarden {
+
+class BasicQuantizer;
+
+class LegatoQuantizer : public Quantizer
+{
+public:
+    // The default unit is the shortest note type.  A unit of
+    // zero means do no quantization -- unlike for BasicQuantizer
+    // this does have a purpose, as it still does the legato step
+    LegatoQuantizer(timeT unit = -1);
+    LegatoQuantizer(std::string source, std::string target, timeT unit = -1);
+    LegatoQuantizer(const LegatoQuantizer &);
+    virtual ~LegatoQuantizer();
+
+    void setUnit(timeT unit) { m_unit = unit; }
+    timeT getUnit() const { return m_unit; }
+
+    virtual void quantizeRange(Segment *,
+                               Segment::iterator,
+                               Segment::iterator) const;
+
+protected:
+    virtual void quantizeSingle(Segment *, Segment::iterator,
+                                Segment::iterator &) const;
+
+    timeT quantizeTime(timeT) const;
+
+private:
+    LegatoQuantizer &operator=(const BasicQuantizer &); // not provided
+
+    timeT m_unit;
+};
+
+}
+
+#endif
+