KisFilteredRollingMean.h

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/*
 *  SPDX-FileCopyrightText: 2022 Dmitry Kazakov <dimula73@gmail.com>
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#ifndef KISFILTEREDROLLINGMEAN_H
#define KISFILTEREDROLLINGMEAN_H
 
#include "kritaglobal_export.h"
 
#include <vector>
#include <boost/circular_buffer.hpp>
#include <QtGlobal>
 
class KRITAGLOBAL_EXPORT KisFilteredRollingMean
{
public:
    KisFilteredRollingMean(int windowSize, qreal effectivePortion);
 
    void addValue(qreal value);
 
    qreal filteredMean() const;
 
    bool isEmpty() const;
 
private:
    boost::circular_buffer<qreal> m_values;
    qreal m_rollingSum;
    qreal m_effectivePortion;
    mutable std::vector<qreal> m_cutOffBuffer;
};
 
#endif // KISFILTEREDROLLINGMEAN_H