QNmeaPositionInfoSource Class Reference

Member Function Documentation

QNmeaPositionInfoSource::QNmeaPositionInfoSource ( UpdateMode updateMode, QObject * parent = 0 )

Constructs a QNmeaPositionInfoSource instance with the given parent and updateMode.

This function was introduced in Qt Mobility 1.0.

QNmeaPositionInfoSource::~QNmeaPositionInfoSource ()

Destroys the position source.

QIODevice * QNmeaPositionInfoSource::device () const

Returns the NMEA data source.

This function was introduced in Qt Mobility 1.0.

See also setDevice().

QGeoPositionInfo QNmeaPositionInfoSource::lastKnownPosition ( bool fromSatellitePositioningMethodsOnly = false ) const [virtual]

Reimplemented from QGeoPositionInfoSource::lastKnownPosition().

This function was introduced in Qt Mobility 1.0.

int QNmeaPositionInfoSource::minimumUpdateInterval () const [virtual]

Reimplemented from QGeoPositionInfoSource::minimumUpdateInterval().

This function was introduced in Qt Mobility 1.0.

bool QNmeaPositionInfoSource::parsePosInfoFromNmeaData ( const char * data, int size, QGeoPositionInfo * posInfo, bool * hasFix ) [virtual protected]

Parses an NMEA sentence string into a QGeoPositionInfo.

The default implementation will parse standard NMEA sentences. This method should be reimplemented in a subclass whenever the need to deal with non-standard NMEA sentences arises.

The parser reads size bytes from data and uses that information to setup posInfo and hasFix. If hasFix is set to false then posInfo may contain only the time or the date and the time.

Returns true if the sentence was succsesfully parsed, otherwise returns false and should not modifiy posInfo or hasFix.

This function was introduced in Qt Mobility 1.0.

void QNmeaPositionInfoSource::requestUpdate ( int msec = 0 ) [virtual slot]

Reimplemented from QGeoPositionInfoSource::requestUpdate().

This function was introduced in Qt Mobility 1.0.

void QNmeaPositionInfoSource::setDevice ( QIODevice * device )

Sets the NMEA data source to device. If the device is not open, it will be opened in QIODevice::ReadOnly mode.

The source device can only be set once and must be set before calling startUpdates() or requestUpdate().

Note: The device must emit QIODevice::readyRead() for the source to be notified when data is available for reading. QNmeaPositionInfoSource does not assume the ownership of the device, and hence does not deallocate it upon destruction.

This function was introduced in Qt Mobility 1.0.

See also device().

void QNmeaPositionInfoSource::setUpdateInterval ( int msec ) [virtual]

Reimplemented from QGeoPositionInfoSource::setUpdateInterval().

This function was introduced in Qt Mobility 1.0.

void QNmeaPositionInfoSource::startUpdates () [virtual slot]

Reimplemented from QGeoPositionInfoSource::startUpdates().

This function was introduced in Qt Mobility 1.0.

void QNmeaPositionInfoSource::stopUpdates () [virtual slot]

Reimplemented from QGeoPositionInfoSource::stopUpdates().

This function was introduced in Qt Mobility 1.0.

PositioningMethods QNmeaPositionInfoSource::supportedPositioningMethods () const [virtual]

Reimplemented from QGeoPositionInfoSource::supportedPositioningMethods().

This function was introduced in Qt Mobility 1.0.

UpdateMode QNmeaPositionInfoSource::updateMode () const

Returns the update mode.

This function was introduced in Qt Mobility 1.0.