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diff --git a/src/libpcp_qwt/src/qwt_slider.h b/src/libpcp_qwt/src/qwt_slider.h
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+/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
+ * Qwt Widget Library
+ * Copyright (C) 1997   Josef Wilgen
+ * Copyright (C) 2002   Uwe Rathmann
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the Qwt License, Version 1.0
+ *****************************************************************************/
+
+#ifndef QWT_SLIDER_H
+#define QWT_SLIDER_H
+
+#include "qwt_global.h"
+#include "qwt_abstract_scale.h"
+#include "qwt_abstract_slider.h"
+
+class QwtScaleDraw;
+
+/*!
+  \brief The Slider Widget
+
+  QwtSlider is a slider widget which operates on an interval
+  of type double. QwtSlider supports different layouts as
+  well as a scale.
+
+  \image html sliders.png
+
+  \sa QwtAbstractSlider and QwtAbstractScale for the descriptions
+      of the inherited members.
+*/
+
+class QWT_EXPORT QwtSlider : public QwtAbstractSlider, public QwtAbstractScale
+{
+    Q_OBJECT
+    Q_ENUMS( ScalePos )
+    Q_ENUMS( BackgroundStyle )
+    Q_PROPERTY( ScalePos scalePosition READ scalePosition
+        WRITE setScalePosition )
+    Q_PROPERTY( BackgroundStyles backgroundStyle 
+        READ backgroundStyle WRITE setBackgroundStyle )
+    Q_PROPERTY( QSize handleSize READ handleSize WRITE setHandleSize )
+    Q_PROPERTY( int borderWidth READ borderWidth WRITE setBorderWidth )
+    Q_PROPERTY( int spacing READ spacing WRITE setSpacing )
+
+public:
+
+    /*!
+      Scale position. QwtSlider tries to enforce valid combinations of its
+      orientation and scale position:
+
+      - Qt::Horizonal combines with NoScale, TopScale and BottomScale
+      - Qt::Vertical combines with NoScale, LeftScale and RightScale
+
+      \sa QwtSlider()
+     */
+    enum ScalePos
+    {
+        //! The slider has no scale
+        NoScale,
+
+        //! The scale is left of the slider
+        LeftScale,
+
+        //! The scale is right of the slider
+        RightScale,
+
+        //! The scale is above of the slider
+        TopScale,
+
+        //! The scale is below of the slider
+        BottomScale
+    };
+
+    /*!
+      Background style.
+      \sa QwtSlider()
+     */
+    enum BackgroundStyle
+    {
+        //! Trough background
+        Trough = 0x01,
+
+        //! Groove
+        Groove = 0x02,
+    };
+
+    //! Background styles
+    typedef QFlags<BackgroundStyle> BackgroundStyles;
+
+    explicit QwtSlider( QWidget *parent,
+        Qt::Orientation = Qt::Horizontal,
+        ScalePos = NoScale, BackgroundStyles = Trough );
+
+    virtual ~QwtSlider();
+
+    virtual void setOrientation( Qt::Orientation );
+
+    void setBackgroundStyle( BackgroundStyles );
+    BackgroundStyles backgroundStyle() const;
+
+    void setScalePosition( ScalePos s );
+    ScalePos scalePosition() const;
+
+    void setHandleSize( int width, int height );
+    void setHandleSize( const QSize & );
+    QSize handleSize() const;
+
+    void setBorderWidth( int bw );
+    int borderWidth() const;
+
+    void setSpacing( int );
+    int spacing() const;
+
+    virtual QSize sizeHint() const;
+    virtual QSize minimumSizeHint() const;
+
+    void setScaleDraw( QwtScaleDraw * );
+    const QwtScaleDraw *scaleDraw() const;
+
+protected:
+    virtual double getValue( const QPoint &p );
+    virtual void getScrollMode( const QPoint &p,
+        QwtAbstractSlider::ScrollMode &, int &direction ) const;
+
+    virtual void drawSlider ( QPainter *, const QRect & ) const;
+    virtual void drawHandle( QPainter *, const QRect &, int pos ) const;
+
+    virtual void resizeEvent( QResizeEvent * );
+    virtual void paintEvent ( QPaintEvent * );
+    virtual void changeEvent( QEvent * );
+
+    virtual void valueChange();
+    virtual void rangeChange();
+    virtual void scaleChange();
+
+    int transform( double v ) const;
+
+    QwtScaleDraw *scaleDraw();
+
+private:
+    void layoutSlider( bool );
+    void initSlider( Qt::Orientation, ScalePos, BackgroundStyles );
+
+    class PrivateData;
+    PrivateData *d_data;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS( QwtSlider::BackgroundStyles )
+
+#endif