qwt_point_data.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_POINT_DATA_H
#define QWT_POINT_DATA_H 1

#include "qwt_global.h"
#include "qwt_series_data.h"

class QWT_EXPORT QwtPointArrayData: public QwtSeriesData<QPointF>
{
public:
    QwtPointArrayData( const QVector<double> &x, const QVector<double> &y );
    QwtPointArrayData( const double *x, const double *y, size_t size );

    virtual QRectF boundingRect() const;

    virtual size_t size() const;
    virtual QPointF sample( size_t i ) const;

    const QVector<double> &xData() const;
    const QVector<double> &yData() const;

private:
    QVector<double> d_x;
    QVector<double> d_y;
};

class QWT_EXPORT QwtCPointerData: public QwtSeriesData<QPointF>
{
public:
    QwtCPointerData( const double *x, const double *y, size_t size );

    virtual QRectF boundingRect() const;
    virtual size_t size() const;
    virtual QPointF sample( size_t i ) const;

    const double *xData() const;
    const double *yData() const;

private:
    const double *d_x;
    const double *d_y;
    size_t d_size;
};

class QWT_EXPORT QwtSyntheticPointData: public QwtSeriesData<QPointF>
{
public:
    QwtSyntheticPointData( size_t size,
        const QwtInterval & = QwtInterval() );

    void setSize( size_t size );
    virtual size_t size() const;

    void setInterval( const QwtInterval& );
    QwtInterval interval() const;

    virtual QRectF boundingRect() const;
    virtual QPointF sample( size_t i ) const;

    virtual double y( double x ) const = 0;
    virtual double x( uint index ) const;

    virtual void setRectOfInterest( const QRectF & );
    QRectF rectOfInterest() const;

private:
    size_t d_size;
    QwtInterval d_interval;
    QRectF d_rectOfInterest;
    QwtInterval d_intervalOfInterest;
};

#endif