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diff --git a/src/libpcp_qwt/src/qwt_legend.h b/src/libpcp_qwt/src/qwt_legend.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_LEGEND_H
+#define QWT_LEGEND_H
+
+#include "qwt_global.h"
+#include <qframe.h>
+#include <qlist.h>
+
+class QScrollBar;
+class QwtLegendItemManager;
+
+/*!
+  \brief The legend widget
+
+  The QwtLegend widget is a tabular arrangement of legend items. Legend
+  items might be any type of widget, but in general they will be
+  a QwtLegendItem.
+
+  \sa QwtLegendItem, QwtLegendItemManager QwtPlot
+*/
+
+class QWT_EXPORT QwtLegend : public QFrame
+{
+    Q_OBJECT
+
+public:
+    /*!
+      \brief Interaction mode for the legend items
+
+       The default is QwtLegend::ReadOnlyItem.
+
+       \sa setItemMode(), itemMode(), QwtLegendItem::IdentifierMode
+           QwtLegendItem::clicked(), QwtLegendItem::checked(),
+           QwtPlot::legendClicked(), QwtPlot::legendChecked()
+     */
+
+    enum LegendItemMode
+    {
+        //! The legend item is not interactive, like a label
+        ReadOnlyItem,
+
+        //! The legend item is clickable, like a push button
+        ClickableItem,
+
+        //! The legend item is checkable, like a checkable button
+        CheckableItem
+    };
+
+    explicit QwtLegend( QWidget *parent = NULL );
+    virtual ~QwtLegend();
+
+    void setItemMode( LegendItemMode );
+    LegendItemMode itemMode() const;
+
+    QWidget *contentsWidget();
+    const QWidget *contentsWidget() const;
+
+    void insert( const QwtLegendItemManager *, QWidget * );
+    void remove( const QwtLegendItemManager * );
+
+    QWidget *find( const QwtLegendItemManager * ) const;
+    QwtLegendItemManager *find( const QWidget * ) const;
+
+    virtual QList<QWidget *> legendItems() const;
+
+    void clear();
+
+    bool isEmpty() const;
+    uint itemCount() const;
+
+    virtual bool eventFilter( QObject *, QEvent * );
+
+    virtual QSize sizeHint() const;
+    virtual int heightForWidth( int w ) const;
+
+    QScrollBar *horizontalScrollBar() const;
+    QScrollBar *verticalScrollBar() const;
+
+protected:
+    virtual void layoutContents();
+
+private:
+    class PrivateData;
+    PrivateData *d_data;
+};
+
+#endif