trafficgraphwidget.h

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// Copyright (c) 2011-2020 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
#ifndef BITCOIN_QT_TRAFFICGRAPHWIDGET_H
#define BITCOIN_QT_TRAFFICGRAPHWIDGET_H
 
#include <QWidget>
#include <QQueue>
 
#include <chrono>
 
class ClientModel;
 
QT_BEGIN_NAMESPACE
class QPaintEvent;
class QTimer;
QT_END_NAMESPACE
 
class TrafficGraphWidget : public QWidget
{
    Q_OBJECT
 
public:
    explicit TrafficGraphWidget(QWidget *parent = nullptr);
    void setClientModel(ClientModel *model);
    std::chrono::minutes getGraphRange() const;
 
protected:
    void paintEvent(QPaintEvent *) override;
 
public Q_SLOTS:
    void updateRates();
    void setGraphRange(std::chrono::minutes new_range);
    void clear();
 
private:
    void paintPath(QPainterPath &path, QQueue<float> &samples);
 
    QTimer *timer;
    float fMax;
    std::chrono::minutes m_range{0};
    QQueue<float> vSamplesIn;
    QQueue<float> vSamplesOut;
    quint64 nLastBytesIn;
    quint64 nLastBytesOut;
    ClientModel *clientModel;
};
 
#endif // BITCOIN_QT_TRAFFICGRAPHWIDGET_H