The QGeoSatelliteInfoSource class is an abstract base class for the distribution of satellite information updates.
The static function QGeoSatelliteInfoSource::createDefaultSource() creates a default satellite data source that is appropriate for the platform, if one is available. Otherwise, available QGeoPositionInfoSourceFactory plugins will be checked for one that has a satellite data source available.
Call startUpdates() and stopUpdates() to start and stop regular updates, or requestUpdate() to request a single update. When an update is available, satellitesInViewUpdated() and/or satellitesInUseUpdated() will be emitted.
Users of a BlackBerry QGeoSatelliteInfoSource subclass (obtained from QGeoSatelliteInfoSource::createDefaultSource()) can access the underlying backend (BlackBerry Location Manager) for additional functionality via the Qt property system.
The following properties extend QGeoSatelliteInfoSource allowing use of additional features of the BlackBerry Location Manager. They correspond to the fields of the dat parameter of the location request. Set these properties prior to calling startUpdates() or requestUpdate().
source->setProperty( "period", 5.0 );
source->setProperty( "responseTime", 10.0 );
source->setProperty( "canRunInBackground", true );
Public Functions Index
|QGeoSatelliteInfoSource (QObject *parent)|
Static Public Functions Index
Creates a source with the specified parent.
Static Public Functions
Creates and returns a source with the specified parent that reads from the system's default source of satellite update information, or the highest priority available plugin.
Returns 0 if the system has no default source and no valid plugins could be found.
Creates and returns a source with the given parent, by loading the plugin named sourceName.
Returns 0 if the plugin cannot be found.
Returns a list of available source plugins.
Note that this does not include the default system backend, if one is available.
Starts emitting updates at regular intervals.
Stops emitting updates at regular intervals.
If the current position cannot be found within the given timeout (in milliseconds), requestTimeout() is emitted.
If the timeout is zero, the timeout defaults to a reasonable timeout period as appropriate for the source.
This does nothing if another update request is in progress. However it can be called even if startUpdates() has already been called and regular updates are in progress.
The satellites parameter holds the satellites currently in view.
These are the satellites that are used to get a "fix" - that is, those used to determine the current position.
The satellites parameter holds the satellites currently in use.
Emitted if requestUpdate() was called and the current satellite information could not be retrieved within the specified timeout.
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