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diff --git a/src/gui/rulers/PercussionPitchRuler.h b/src/gui/rulers/PercussionPitchRuler.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   <glaurent@telegraph-road.org>,
+        Chris Cannam        <cannam@all-day-breakfast.com>,
+        Richard Bown        <richard.bown@ferventsoftware.com>
+
+    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_PERCUSSIONPITCHRULER_H_
+#define _RG_PERCUSSIONPITCHRULER_H_
+
+#include "PitchRuler.h"
+#include <qsize.h>
+
+
+class QWidget;
+class QPaintEvent;
+class QMouseEvent;
+class QFontMetrics;
+class QFont;
+class QEvent;
+
+
+namespace Rosegarden
+{
+
+class MidiKeyMapping;
+
+
+class PercussionPitchRuler : public PitchRuler
+{
+    Q_OBJECT
+public:
+    PercussionPitchRuler(QWidget *parent,
+                         const MidiKeyMapping *mapping,
+                         int lineSpacing);
+
+    virtual QSize sizeHint() const;
+    virtual QSize minimumSizeHint() const;
+
+    void drawHoverNote(int evPitch);
+
+signals:
+    void keyPressed(unsigned int y, bool repeating);
+    void keySelected(unsigned int y, bool repeating);
+    void hoveredOverKeyChanged(unsigned int y);
+
+protected:
+    virtual void paintEvent(QPaintEvent*);
+    virtual void mouseMoveEvent(QMouseEvent*);
+    virtual void mousePressEvent(QMouseEvent*);
+    virtual void mouseReleaseEvent(QMouseEvent*);
+    virtual void enterEvent(QEvent *);
+    virtual void leaveEvent(QEvent *);
+
+    const MidiKeyMapping *m_mapping;
+
+    int                       m_width;
+    int                       m_lineSpacing;
+
+    bool                      m_mouseDown;
+    bool                      m_selecting;
+
+    int                       m_lastHoverHighlight;
+
+    QFont                    *m_font;
+    QFontMetrics             *m_fontMetrics;
+};
+
+
+
+}
+
+#endif