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diff --git a/src/libpcp_qwt/src/qwt_thermo.h b/src/libpcp_qwt/src/qwt_thermo.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_THERMO_H
+#define QWT_THERMO_H
+
+#include "qwt_global.h"
+#include "qwt_abstract_scale.h"
+#include "qwt_interval.h"
+#include <qwidget.h>
+
+class QwtScaleDraw;
+class QwtColorMap;
+
+/*!
+  \brief The Thermometer Widget
+
+  QwtThermo is a widget which displays a value in an interval. It supports:
+  - a horizontal or vertical layout;
+  - a range;
+  - a scale;
+  - an alarm level.
+
+  \image html sysinfo.png
+
+  The fill colors might be calculated from an optional color map
+  If no color map has been assigned QwtThermo uses the 
+  following colors/brushes from the widget palette:
+
+  - QPalette::Base
+    Background of the pipe
+  - QPalette::ButtonText
+    Fill brush below the alarm level
+  - QPalette::Highlight
+    Fill brush for the values above the alarm level
+  - QPalette::WindowText
+    For the axis of the scale
+  - QPalette::Text
+    For the labels of the scale
+
+  By default, the scale and range run over the same interval of values.
+  QwtAbstractScale::setScale() changes the interval of the scale and allows
+  easy conversion between physical units.
+
+  The example shows how to make the scale indicate in degrees Fahrenheit and
+  to set the value in degrees Kelvin:
+\code
+#include <qapplication.h>
+#include <qwt_thermo.h>
+
+double Kelvin2Fahrenheit(double kelvin)
+{
+    // see http://en.wikipedia.org/wiki/Kelvin
+    return 1.8*kelvin - 459.67;
+}
+
+int main(int argc, char **argv)
+{
+    const double minKelvin = 0.0;
+    const double maxKelvin = 500.0;
+
+    QApplication a(argc, argv);
+    QwtThermo t;
+    t.setRange(minKelvin, maxKelvin);
+    t.setScale(Kelvin2Fahrenheit(minKelvin), Kelvin2Fahrenheit(maxKelvin));
+    // set the value in Kelvin but the scale displays in Fahrenheit
+    // 273.15 Kelvin = 0 Celsius = 32 Fahrenheit
+    t.setValue(273.15);
+    a.setMainWidget(&t);
+    t.show();
+    return a.exec();
+}
+\endcode
+
+  \todo Improve the support for a logarithmic range and/or scale.
+*/
+class QWT_EXPORT QwtThermo: public QWidget, public QwtAbstractScale
+{
+    Q_OBJECT
+
+    Q_ENUMS( ScalePos )
+
+    Q_PROPERTY( bool alarmEnabled READ alarmEnabled WRITE setAlarmEnabled )
+    Q_PROPERTY( double alarmLevel READ alarmLevel WRITE setAlarmLevel )
+    Q_PROPERTY( ScalePos scalePosition READ scalePosition
+        WRITE setScalePosition )
+    Q_PROPERTY( int spacing READ spacing WRITE setSpacing )
+    Q_PROPERTY( int borderWidth READ borderWidth WRITE setBorderWidth )
+    Q_PROPERTY( double maxValue READ maxValue WRITE setMaxValue )
+    Q_PROPERTY( double minValue READ minValue WRITE setMinValue )
+    Q_PROPERTY( int pipeWidth READ pipeWidth WRITE setPipeWidth )
+    Q_PROPERTY( double value READ value WRITE setValue )
+
+public:
+    /*!
+      Scale position. QwtThermo 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 setOrientation(), setScalePosition()
+    */
+    enum ScalePos
+    {
+        //! No scale
+        NoScale,
+
+        //! The scale is left of the pipe
+        LeftScale,
+
+        //! The scale is right of the pipe
+        RightScale,
+
+        //! The scale is above the pipe
+        TopScale,
+
+        //! The scale is below the pipe
+        BottomScale
+    };
+
+    explicit QwtThermo( QWidget *parent = NULL );
+    virtual ~QwtThermo();
+
+    void setOrientation( Qt::Orientation, ScalePos );
+
+    void setScalePosition( ScalePos s );
+    ScalePos scalePosition() const;
+
+    void setSpacing( int );
+    int spacing() const;
+
+    void setBorderWidth( int w );
+    int borderWidth() const;
+
+    void setFillBrush( const QBrush &b );
+    const QBrush &fillBrush() const;
+
+    void setAlarmBrush( const QBrush &b );
+    const QBrush &alarmBrush() const;
+
+    void setAlarmLevel( double v );
+    double alarmLevel() const;
+
+    void setAlarmEnabled( bool tf );
+    bool alarmEnabled() const;
+
+    void setColorMap( QwtColorMap * );
+    QwtColorMap *colorMap();
+    const QwtColorMap *colorMap() const;
+
+    void setPipeWidth( int w );
+    int pipeWidth() const;
+
+    void setRangeFlags( QwtInterval::BorderFlags );
+    QwtInterval::BorderFlags rangeFlags() const;
+
+    void setMaxValue( double v );
+    double maxValue() const;
+
+    void setMinValue( double v );
+    double minValue() const;
+
+    double value() const;
+
+    void setRange( double vmin, double vmax, bool lg = false );
+
+    virtual QSize sizeHint() const;
+    virtual QSize minimumSizeHint() const;
+
+    void setScaleDraw( QwtScaleDraw * );
+    const QwtScaleDraw *scaleDraw() const;
+
+public Q_SLOTS:
+    virtual void setValue( double val );
+
+protected:
+    virtual void drawLiquid( QPainter *, const QRect & ) const;
+    virtual void scaleChange();
+
+    virtual void paintEvent( QPaintEvent * );
+    virtual void resizeEvent( QResizeEvent * );
+    virtual void changeEvent( QEvent * );
+
+    QwtScaleDraw *scaleDraw();
+
+    QRect pipeRect() const;
+
+private:
+    void layoutThermo( bool );
+
+    class PrivateData;
+    PrivateData *d_data;
+};
+
+#endif