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diff --git a/src/gui/rulers/PropertyControlRuler.h b/src/gui/rulers/PropertyControlRuler.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_PROPERTYCONTROLRULER_H_
+#define _RG_PROPERTYCONTROLRULER_H_
+
+#include "base/PropertyName.h"
+#include "base/Staff.h"
+#include "ControlRuler.h"
+#include <qstring.h>
+#include "base/Event.h"
+
+
+class QWidget;
+class QMouseEvent;
+class QContextMenuEvent;
+class QCanvasLine;
+class QCanvas;
+
+
+namespace Rosegarden
+{
+
+class ViewElement;
+class Staff;
+class Segment;
+class RulerScale;
+class EditViewBase;
+
+
+/**
+ * PropertyControlRuler : edit a property on events on a staff (only
+ * events with a ViewElement attached, mostly notes)
+ */
+class PropertyControlRuler : public ControlRuler, public StaffObserver
+{
+public:
+    PropertyControlRuler(PropertyName propertyName,
+                         Staff*,
+                         RulerScale*,
+                         EditViewBase* parentView,
+                         QCanvas*,
+                         QWidget* parent=0, const char* name=0, WFlags f=0);
+
+    virtual ~PropertyControlRuler();
+
+    virtual QString getName();
+
+    const PropertyName& getPropertyName()     { return m_propertyName; }
+
+    // Allow something external to reset the selection of Events
+    // that this ruler is displaying
+    //
+    void setStaff(Staff *);
+
+    // StaffObserver interface
+    virtual void elementAdded(const Staff *, ViewElement*);
+    virtual void elementRemoved(const Staff *, ViewElement*);
+    virtual void staffDeleted(const Staff *);
+    virtual void startPropertyLine();
+    virtual void selectAllProperties();
+
+    /// SegmentObserver interface
+    virtual void endMarkerTimeChanged(const Segment *, bool shorten);
+
+protected:
+
+    virtual void contentsMousePressEvent(QMouseEvent*);
+    virtual void contentsMouseReleaseEvent(QMouseEvent*);
+    virtual void contentsMouseMoveEvent(QMouseEvent*);
+    virtual void contentsContextMenuEvent(QContextMenuEvent*);
+
+    void drawPropertyLine(timeT startTime,
+                          timeT endTime,
+                          int startValue,
+                          int endValue);
+
+    virtual void init();
+    virtual void drawBackground();
+    virtual void computeStaffOffset();
+
+    //--------------- Data members ---------------------------------
+
+    PropertyName       m_propertyName;
+    Staff*             m_staff;
+
+    QCanvasLine                   *m_propertyLine;
+    
+    bool                           m_propertyLineShowing;
+    int                            m_propertyLineX;
+    int                            m_propertyLineY;
+};
+
+
+
+}
+
+#endif