Пример #1
0
void SolidColorCommand::setDirection(const QString& direction)
{
    this->direction = direction;
    emit directionChanged(this->direction);
}
void QDeclarativePosition::setPosition(const QGeoPositionInfo &info)
{
    // timestamp
    const QDateTime pTimestamp = m_info.timestamp();
    const QDateTime timestamp = info.timestamp();
    bool emitTimestampChanged = pTimestamp != timestamp;

    // coordinate
    const QGeoCoordinate pCoordinate = m_info.coordinate();
    const QGeoCoordinate coordinate = info.coordinate();
    bool emitCoordinateChanged = pCoordinate != coordinate;
    bool emitLatitudeValidChanged = exclusiveNaN(pCoordinate.latitude(), coordinate.latitude());
    bool emitLongitudeValidChanged = exclusiveNaN(pCoordinate.longitude(), coordinate.longitude());
    bool emitAltitudeValidChanged = exclusiveNaN(pCoordinate.altitude(), coordinate.altitude());

    // direction
    const qreal pDirection = m_info.attribute(QGeoPositionInfo::Direction);
    const qreal direction = info.attribute(QGeoPositionInfo::Direction);
    bool emitDirectionChanged = !equalOrNaN(pDirection, direction);
    bool emitDirectionValidChanged = exclusiveNaN(pDirection, direction);

    // ground speed
    const qreal pSpeed = m_info.attribute(QGeoPositionInfo::GroundSpeed);
    const qreal speed = info.attribute(QGeoPositionInfo::GroundSpeed);
    bool emitSpeedChanged = !equalOrNaN(pSpeed, speed);
    bool emitSpeedValidChanged = exclusiveNaN(pSpeed, speed);

    // vertical speed
    const qreal pVerticalSpeed = m_info.attribute(QGeoPositionInfo::VerticalSpeed);
    const qreal verticalSpeed = info.attribute(QGeoPositionInfo::VerticalSpeed);
    bool emitVerticalSpeedChanged = !equalOrNaN(pVerticalSpeed, verticalSpeed);
    bool emitVerticalSpeedValidChanged = exclusiveNaN(pVerticalSpeed, verticalSpeed);

    // magnetic variation
    // not in QML API

    // horizontal accuracy
    const qreal pHorizontalAccuracy = m_info.attribute(QGeoPositionInfo::HorizontalAccuracy);
    const qreal horizontalAccuracy = info.attribute(QGeoPositionInfo::HorizontalAccuracy);
    bool emitHorizontalAccuracyChanged = !equalOrNaN(pHorizontalAccuracy, horizontalAccuracy);
    bool emitHorizontalAccuracyValidChanged = exclusiveNaN(pHorizontalAccuracy, horizontalAccuracy);

    // vertical accuracy
    const qreal pVerticalAccuracy = m_info.attribute(QGeoPositionInfo::VerticalAccuracy);
    const qreal verticalAccuracy = info.attribute(QGeoPositionInfo::VerticalAccuracy);
    bool emitVerticalAccuracyChanged = !equalOrNaN(pVerticalAccuracy, verticalAccuracy);
    bool emitVerticalAccuracyValidChanged = exclusiveNaN(pVerticalAccuracy, verticalAccuracy);

    m_info = info;

    if (emitTimestampChanged)
        emit timestampChanged();
    if (emitCoordinateChanged)
        emit coordinateChanged();
    if (emitLatitudeValidChanged)
        emit latitudeValidChanged();
    if (emitLongitudeValidChanged)
        emit longitudeValidChanged();
    if (emitAltitudeValidChanged)
        emit altitudeValidChanged();
    if (emitDirectionChanged)
        emit directionChanged();
    if (emitDirectionValidChanged)
        emit directionValidChanged();
    if (emitSpeedChanged)
        emit speedChanged();
    if (emitSpeedValidChanged)
        emit speedValidChanged();
    if (emitVerticalSpeedChanged)
        emit verticalSpeedChanged();
    if (emitVerticalSpeedValidChanged)
        emit verticalSpeedValidChanged();
    if (emitHorizontalAccuracyChanged)
        emit horizontalAccuracyChanged();
    if (emitHorizontalAccuracyValidChanged)
        emit horizontalAccuracyValidChanged();
    if (emitVerticalAccuracyChanged)
        emit verticalAccuracyChanged();
    if (emitVerticalAccuracyValidChanged)
        emit verticalAccuracyValidChanged();
}