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diff --git a/src/libpcp_qwt/src/qwt_plot_layout.h b/src/libpcp_qwt/src/qwt_plot_layout.h
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+++ b/src/libpcp_qwt/src/qwt_plot_layout.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_PLOT_LAYOUT_H
+#define QWT_PLOT_LAYOUT_H
+
+#include "qwt_global.h"
+#include "qwt_plot.h"
+
+/*!
+  \brief Layout engine for QwtPlot.
+
+  It is used by the QwtPlot widget to organize its internal widgets
+  or by QwtPlot::print() to render its content to a QPaintDevice like
+  a QPrinter, QPixmap/QImage or QSvgRenderer.
+*/
+
+class QWT_EXPORT QwtPlotLayout
+{
+public:
+    /*!
+      Options to configure the plot layout engine
+      \sa activate(), QwtPlotRenderer
+     */
+    enum Option
+    {
+        //! Unused
+        AlignScales = 0x01,
+
+        /*!
+          Ignore the dimension of the scrollbars. There are no
+          scrollbars, when the plot is not rendered to widgets.
+         */
+        IgnoreScrollbars = 0x02,
+
+        //! Ignore all frames. 
+        IgnoreFrames = 0x04,
+
+        //! Ignore the legend.
+        IgnoreLegend = 0x08
+    };
+
+    //! Layout options
+    typedef QFlags<Option> Options;
+
+    explicit QwtPlotLayout();
+    virtual ~QwtPlotLayout();
+
+    void setCanvasMargin( int margin, int axis = -1 );
+    int canvasMargin( int axis ) const;
+
+    void setFixedAxisOffset(int offset, int axis = -1);
+    int fixedAxisOffset(int axis) const;
+
+    void setAlignCanvasToScales( bool );
+    bool alignCanvasToScales() const;
+
+    void setSpacing( int );
+    int spacing() const;
+
+    void setLegendPosition( QwtPlot::LegendPosition pos, double ratio );
+    void setLegendPosition( QwtPlot::LegendPosition pos );
+    QwtPlot::LegendPosition legendPosition() const;
+
+    void setLegendRatio( double ratio );
+    double legendRatio() const;
+
+    virtual QSize minimumSizeHint( const QwtPlot * ) const;
+
+    virtual void activate( const QwtPlot *,
+        const QRectF &rect, Options options = 0x00 );
+
+    virtual void invalidate();
+
+    const QRectF &titleRect() const;
+    const QRectF &legendRect() const;
+    const QRectF &scaleRect( int axis ) const;
+    const QRectF &canvasRect() const;
+
+    class LayoutData;
+
+protected:
+
+    QRectF layoutLegend( Options options, const QRectF & ) const;
+    QRectF alignLegend( const QRectF &canvasRect,
+        const QRectF &legendRect ) const;
+
+    void expandLineBreaks( int options, const QRectF &rect,
+        int &dimTitle, int dimAxes[QwtPlot::axisCnt] ) const;
+
+    void alignScales( int options, QRectF &canvasRect,
+        QRectF scaleRect[QwtPlot::axisCnt] ) const;
+
+private:
+    class PrivateData;
+
+    PrivateData *d_data;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS( QwtPlotLayout::Options )
+
+#endif