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diff --git a/src/libpcp_qwt/src/qwt_scale_div.h b/src/libpcp_qwt/src/qwt_scale_div.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_SCALE_DIV_H
+#define QWT_SCALE_DIV_H
+
+#include "qwt_global.h"
+#include "qwt_interval.h"
+#include <qlist.h>
+
+class QwtInterval;
+
+/*!
+  \brief A class representing a scale division
+
+  A scale division consists of its limits and 3 list
+  of tick values qualified as major, medium and minor ticks.
+
+  In most cases scale divisions are calculated by a QwtScaleEngine.
+
+  \sa subDivideInto(), subDivide()
+*/
+
+class QWT_EXPORT QwtScaleDiv
+{
+public:
+    //! Scale tick types
+    enum TickType
+    {
+        //! No ticks
+        NoTick = -1,
+
+        //! Minor ticks
+        MinorTick,
+
+        //! Medium ticks
+        MediumTick,
+
+        //! Major ticks
+        MajorTick,
+
+        //! Number of valid tick types
+        NTickTypes
+    };
+
+    explicit QwtScaleDiv();
+    explicit QwtScaleDiv( const QwtInterval &, QList<double>[NTickTypes] );
+    explicit QwtScaleDiv( 
+        double lowerBound, double upperBound, QList<double>[NTickTypes] );
+
+    bool operator==( const QwtScaleDiv &s ) const;
+    bool operator!=( const QwtScaleDiv &s ) const;
+
+    void setInterval( double lowerBound, double upperBound );
+    void setInterval( const QwtInterval & );
+    QwtInterval interval() const;
+
+    double lowerBound() const;
+    double upperBound() const;
+    double range() const;
+
+    bool contains( double v ) const;
+
+    void setTicks( int type, const QList<double> & );
+    const QList<double> &ticks( int type ) const;
+
+    void invalidate();
+    bool isValid() const;
+
+    void invert();
+
+private:
+    double d_lowerBound;
+    double d_upperBound;
+    QList<double> d_ticks[NTickTypes];
+
+    bool d_isValid;
+};
+
+Q_DECLARE_TYPEINFO(QwtScaleDiv, Q_MOVABLE_TYPE);
+
+/*!
+   Change the interval
+   \param lowerBound lower bound
+   \param upperBound upper bound
+*/
+inline void QwtScaleDiv::setInterval( double lowerBound, double upperBound )
+{
+    d_lowerBound = lowerBound;
+    d_upperBound = upperBound;
+}
+
+/*!
+  \return lowerBound -> upperBound
+*/
+inline QwtInterval QwtScaleDiv::interval() const
+{
+    return QwtInterval( d_lowerBound, d_upperBound );
+}
+
+/*!
+  \return lower bound
+  \sa upperBound()
+*/
+inline double QwtScaleDiv::lowerBound() const
+{
+    return d_lowerBound;
+}
+
+/*!
+  \return upper bound
+  \sa lowerBound()
+*/
+inline double QwtScaleDiv::upperBound() const
+{
+    return d_upperBound;
+}
+
+/*!
+  \return upperBound() - lowerBound()
+*/
+inline double QwtScaleDiv::range() const
+{
+    return d_upperBound - d_lowerBound;
+}
+#endif