void QDeclarativePosition::setCoordinate(const QGeoCoordinate &coordinate)
{
if (m_coordinate == coordinate)
return;
m_coordinate = coordinate;
if (coordinate.type() == QGeoCoordinate::Coordinate3D && !m_altitudeValid) {
m_altitudeValid = true;
emit altitudeValidChanged();
} else if (m_altitudeValid) {
m_altitudeValid = false;
emit altitudeValidChanged();
}
if (coordinate.isValid()) {
if (!m_longitudeValid) {
m_longitudeValid = true;
emit longitudeValidChanged();
}
if (!m_latitudeValid) {
m_latitudeValid = true;
emit latitudeValidChanged();
}
} else {
if (m_longitudeValid) {
m_longitudeValid = false;
emit longitudeValidChanged();
}
if (m_latitudeValid) {
m_latitudeValid = false;
emit latitudeValidChanged();
}
}
emit coordinateChanged();
}
void QDeclarativePosition::invalidate()
{
// Invalidate all data
if (m_latitudeValid) {
m_latitudeValid = false;
emit latitudeValidChanged();
}
if (m_longitudeValid) {
m_longitudeValid = false;
emit longitudeValidChanged();
}
if (m_altitudeValid) {
m_altitudeValid = false;
emit altitudeValidChanged();
}
if (m_speedValid) {
m_speedValid = false;
emit speedValidChanged();
}
if (m_horizontalAccuracyValid) {
m_horizontalAccuracyValid = false;
emit horizontalAccuracyValidChanged();
}
if (m_verticalAccuracyValid) {
m_verticalAccuracyValid = false;
emit verticalAccuracyValidChanged();
}
}
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
const qreal pMagneticVariation = m_info.attribute(QGeoPositionInfo::MagneticVariation);
const qreal magneticVariation = info.attribute(QGeoPositionInfo::MagneticVariation);
bool emitMagneticVariationChanged = !equalOrNaN(pMagneticVariation, magneticVariation);
bool emitMagneticVariationValidChanged = exclusiveNaN(pMagneticVariation, magneticVariation);
// 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();
if (emitMagneticVariationChanged)
emit magneticVariationChanged();
if (emitMagneticVariationValidChanged)
emit magneticVariationValidChanged();
}