digestsignal.h

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// SPDX-FileCopyrightText: Copyright (C) 2013 swift Project Community / Contributors
// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-swift-pilot-client-1
 
 
#ifndef SWIFT_MISC_DIGESTSIGNAL_H
#define SWIFT_MISC_DIGESTSIGNAL_H
 
#include <QObject>
#include <QTimer>
 
#include "misc/swiftmiscexport.h"
 
namespace swift::misc
{
    class SWIFT_MISC_EXPORT CDigestSignal : public QObject
    {
        Q_OBJECT
 
    public:
        template <class T, class F1, class F2>
        CDigestSignal(T *sender, F1 inputSignal, F2 digestSignal,
                      std::chrono::milliseconds maxDelay = std::chrono::milliseconds(500), int maxInputsPerDigest = 3)
            : m_maxInputsPerDigest(maxInputsPerDigest)
        {
            QObject::connect(sender, inputSignal, this, &CDigestSignal::inputSignal);
            QObject::connect(this, &CDigestSignal::digestSignal, sender, digestSignal);
            init(maxDelay);
        }
 
        template <class T, class F2>
        CDigestSignal(T *sender, F2 digestSignal, std::chrono::milliseconds maxDelay = std::chrono::milliseconds(500),
                      int maxInputsPerDigest = 3)
            : m_maxInputsPerDigest(maxInputsPerDigest)
        {
            QObject::connect(this, &CDigestSignal::digestSignal, sender, digestSignal);
            init(maxDelay);
        }
 
        ~CDigestSignal() override = default;
 
    signals:
        void digestSignal();
 
    public slots:
        void inputSignal();
 
    private:
        void timerTimeout();
 
        void init(std::chrono::milliseconds maxDelay);
 
        QTimer m_timer;
        const int m_maxInputsPerDigest = 3;
        int m_inputsCount = 0;
    };
} // namespace swift::misc
 
#endif // SWIFT_MISC_DIGESTSIGNAL_H