qt-everywhere-src-5.15.1/qtserialbus/src/tools/canbusutil/readtask.cpp

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#include "readtask.h"

ReadTask::ReadTask(QTextStream &output, QObject *parent) :
    QObject(parent),
    m_output(output) { }

void ReadTask::setShowTimeStamp(bool showTimeStamp)
{
    m_showTimeStamp = showTimeStamp;
}

bool ReadTask::isShowFlags() const
{
    return m_showFlags;
}

void ReadTask::setShowFlags(bool showFlags)
{
    m_showFlags = showFlags;
}

void ReadTask::handleFrames() {
    auto canDevice = qobject_cast<QCanBusDevice *>(QObject::sender());
    if (canDevice == nullptr) {
        qWarning("ReadTask::handleFrames: Unknown sender.");
        return;
    }

    while (canDevice->framesAvailable()) {
        const QCanBusFrame frame = canDevice->readFrame();

        QString view;

        if (m_showTimeStamp) {
            view = QStringLiteral("%1.%2  ")
                    .arg(frame.timeStamp().seconds(), 10, 10, QLatin1Char(' '))
                    .arg(frame.timeStamp().microSeconds() / 100, 4, 10, QLatin1Char('0'));
        }

        if (m_showFlags) {
            QLatin1String flags("- - -  ");

            if (frame.hasBitrateSwitch())
                flags[0] = QLatin1Char('B');
            if (frame.hasErrorStateIndicator())
                flags[2] = QLatin1Char('E');
            if (frame.hasLocalEcho())
                flags[4] = QLatin1Char('L');

            view += flags;
        }

        if (frame.frameType() == QCanBusFrame::ErrorFrame)
            view += canDevice->interpretErrorFrame(frame);
        else
            view += frame.toString();

        m_output << view << Qt::endl;
    }
}

void ReadTask::handleError(QCanBusDevice::CanBusError /*error*/)
{
    auto canDevice = qobject_cast<QCanBusDevice *>(QObject::sender());
    if (canDevice == nullptr) {
        qWarning("ReadTask::handleError: Unknown sender.");
        return;
    }

    m_output << tr("Read error: '%1'").arg(canDevice->errorString()) << Qt::endl;
}