qwt_curve_fitter.h

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/******************************************************************************
 * 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_CURVE_FITTER_H
#define QWT_CURVE_FITTER_H

#include "qwt_global.h"

class QPainterPath;
class QPolygonF;

class QWT_EXPORT QwtCurveFitter
{
  public:
    enum Mode
    {
        Polygon,

        Path
    };

    virtual ~QwtCurveFitter();

    Mode mode() const;

    virtual QPolygonF fitCurve( const QPolygonF& polygon ) const = 0;

    virtual QPainterPath fitCurvePath( const QPolygonF& polygon ) const = 0;

  protected:
    explicit QwtCurveFitter( Mode mode );

  private:
    Q_DISABLE_COPY(QwtCurveFitter)

    const Mode m_mode;
};

#endif