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diff --git a/src/libpcp_qwt/src/qwt_scale_widget.h b/src/libpcp_qwt/src/qwt_scale_widget.h
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+++ b/src/libpcp_qwt/src/qwt_scale_widget.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_WIDGET_H
+#define QWT_SCALE_WIDGET_H
+
+#include "qwt_global.h"
+#include "qwt_text.h"
+#include "qwt_scale_draw.h"
+#include <qwidget.h>
+#include <qfont.h>
+#include <qcolor.h>
+#include <qstring.h>
+
+class QPainter;
+class QwtScaleTransformation;
+class QwtScaleDiv;
+class QwtColorMap;
+
+/*!
+  \brief A Widget which contains a scale
+
+  This Widget can be used to decorate composite widgets with
+  a scale.
+*/
+
+class QWT_EXPORT QwtScaleWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    //! Layout flags of the title
+    enum LayoutFlag
+    {
+        /*!
+          The title of vertical scales is painted from top to bottom. 
+          Otherwise it is painted from bottom to top.
+         */
+        TitleInverted = 1
+    };
+
+    //! Layout flags of the title
+    typedef QFlags<LayoutFlag> LayoutFlags;
+
+    explicit QwtScaleWidget( QWidget *parent = NULL );
+    explicit QwtScaleWidget( QwtScaleDraw::Alignment, QWidget *parent = NULL );
+    virtual ~QwtScaleWidget();
+
+Q_SIGNALS:
+    //! Signal emitted, whenever the scale divison changes
+    void scaleDivChanged();
+
+public:
+    void setTitle( const QString &title );
+    void setTitle( const QwtText &title );
+    QwtText title() const;
+
+    void setLayoutFlag( LayoutFlag, bool on );
+    bool testLayoutFlag( LayoutFlag ) const;
+
+    void setBorderDist( int start, int end );
+    int startBorderDist() const;
+    int endBorderDist() const;
+
+    void getBorderDistHint( int &start, int &end ) const;
+
+    void getMinBorderDist( int &start, int &end ) const;
+    void setMinBorderDist( int start, int end );
+
+    void setMargin( int );
+    int margin() const;
+
+    void setSpacing( int td );
+    int spacing() const;
+
+    void setScaleDiv( QwtScaleTransformation *, const QwtScaleDiv &sd );
+
+    void setScaleDraw( QwtScaleDraw * );
+    const QwtScaleDraw *scaleDraw() const;
+    QwtScaleDraw *scaleDraw();
+
+    void setLabelAlignment( Qt::Alignment );
+    void setLabelRotation( double rotation );
+
+    void setColorBarEnabled( bool );
+    bool isColorBarEnabled() const;
+
+    void setColorBarWidth( int );
+    int colorBarWidth() const;
+
+    void setColorMap( const QwtInterval &, QwtColorMap * );
+
+    QwtInterval colorBarInterval() const;
+    const QwtColorMap *colorMap() const;
+
+    virtual QSize sizeHint() const;
+    virtual QSize minimumSizeHint() const;
+
+    int titleHeightForWidth( int width ) const;
+    int dimForLength( int length, const QFont &scaleFont ) const;
+
+    void drawColorBar( QPainter *painter, const QRectF & ) const;
+    void drawTitle( QPainter *painter, QwtScaleDraw::Alignment,
+        const QRectF &rect ) const;
+
+    void setAlignment( QwtScaleDraw::Alignment );
+    QwtScaleDraw::Alignment alignment() const;
+
+    QRectF colorBarRect( const QRectF& ) const;
+
+protected:
+    virtual void paintEvent( QPaintEvent * );
+    virtual void resizeEvent( QResizeEvent * );
+
+    void draw( QPainter *p ) const;
+
+    void scaleChange();
+    void layoutScale( bool update = true );
+
+private:
+    void initScale( QwtScaleDraw::Alignment );
+
+    class PrivateData;
+    PrivateData *d_data;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS( QwtScaleWidget::LayoutFlags )
+
+#endif