qwt_plot_piecewise_curve.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_PIECEWISE_CURVE_H
#define QWT_PLOT_PIECEWISE_CURVE_H

#include "qwt_plot_curve.h"

#include "qcepplot-ptr.h"

class QWT_EXPORT QwtPlotPiecewiseCurve: public QwtPlotCurve
{
public:
  explicit QwtPlotPiecewiseCurve();
  explicit QwtPlotPiecewiseCurve(QcepPlot *plot, const QwtText &title);
  explicit QwtPlotPiecewiseCurve(QcepPlot *plot, const QString &title);

  virtual QRectF boundingRect() const;

  virtual void drawSeries(QPainter *p,
                    const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect,
                    int from, int to) const;

private:
  static bool isNaN(double x);
  bool ignorePoint(double x, double y) const;
  double x(int n) const;
  double y(int n) const;
  QcepPlot *m_Plot;
};

#endif