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-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Mobility Components.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of The Qt Company Ltd nor the names of its
-** contributors may be used to endorse or promote products derived
-** from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef FREQUENCYMONITOR_H
-#define FREQUENCYMONITOR_H
-
-#include <QObject>
-#include <QTimer>
-
-class FrequencyMonitorPrivate;
-
-/**
- * Class for measuring frequency of events
- *
- * Occurrence of the event is notified by the client via the notify() slot.
- * On a regular interval, both an instantaneous and a rolling average
- * event frequency are calculated.
- */
-class FrequencyMonitor : public QObject
-{
- Q_OBJECT
- Q_DECLARE_PRIVATE(FrequencyMonitor)
- Q_PROPERTY(QString label READ label WRITE setLabel NOTIFY labelChanged)
- Q_PROPERTY(bool active READ active WRITE setActive NOTIFY activeChanged)
- Q_PROPERTY(int samplingInterval READ samplingInterval WRITE setSamplingInterval NOTIFY samplingIntervalChanged)
- Q_PROPERTY(int traceInterval READ traceInterval WRITE setTraceInterval NOTIFY traceIntervalChanged)
- Q_PROPERTY(qreal instantaneousFrequency READ instantaneousFrequency NOTIFY instantaneousFrequencyChanged)
- Q_PROPERTY(qreal averageFrequency READ averageFrequency NOTIFY averageFrequencyChanged)
-
-public:
- FrequencyMonitor(QObject *parent = 0);
- ~FrequencyMonitor();
-
- static void qmlRegisterType();
-
- QString label() const;
- bool active() const;
- int samplingInterval() const;
- int traceInterval() const;
- qreal instantaneousFrequency() const;
- qreal averageFrequency() const;
-
-signals:
- void labelChanged(const QString &value);
- void activeChanged(bool);
- void samplingIntervalChanged(int value);
- void traceIntervalChanged(int value);
- void frequencyChanged();
- void instantaneousFrequencyChanged(qreal value);
- void averageFrequencyChanged(qreal value);
-
-public slots:
- Q_INVOKABLE void notify();
- Q_INVOKABLE void trace();
- void setActive(bool value);
- void setLabel(const QString &value);
- void setSamplingInterval(int value);
- void setTraceInterval(int value);
-
-private:
- FrequencyMonitorPrivate *d_ptr;
-};
-
-#endif // FREQUENCYMONITOR_H