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qwt_plot_panner.h 1.41 KiB
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    /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
     * Qwt Widget Library
     * Copyright (C) 1997   Josef Wilgen
     * Copyright (C) 2002   Uwe Rathmann
    
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     * 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_PANNER_H
    #define QWT_PLOT_PANNER_H 1
    
    #include "qwt_global.h"
    #include "qwt_panner.h"
    
    class QwtPlotCanvas;
    class QwtPlot;
    
    /*!
    
      \brief QwtPlotPanner provides panning of a plot canvas
    
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      QwtPlotPanner is a panner for a QwtPlotCanvas, that
    
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      adjusts the scales of the axes after dropping
      the canvas on its new position.
    
    
      Together with QwtPlotZoomer and QwtPlotMagnifier powerful ways
    
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      of navigating on a QwtPlot widget can be implemented easily.
    
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      \note The axes are not updated, while dragging the canvas
      \sa QwtPlotZoomer, QwtPlotMagnifier
    */
    class QWT_EXPORT QwtPlotPanner: public QwtPanner
    {
        Q_OBJECT
    
    public:
        explicit QwtPlotPanner(QwtPlotCanvas *);
        virtual ~QwtPlotPanner();
    
        QwtPlotCanvas *canvas();
        const QwtPlotCanvas *canvas() const;
    
        QwtPlot *plot();
        const QwtPlot *plot() const;
    
        void setAxisEnabled(int axis, bool on);
        bool isAxisEnabled(int axis) const;
    
    protected slots:
        virtual void moveCanvas(int dx, int dy);
    
    private:
        class PrivateData;
        PrivateData *d_data;
    };
    
    #endif