The QGeoPositionInfoSourceFactory class is a factory class used as the plugin interface for external providers of positioning data. More...
#include <QGeoPositionInfoSourceFactory>This class was introduced in Qt Mobility 1.2.
| virtual | ~QGeoPositionInfoSourceFactory () |
| virtual QGeoPositionInfoSource * | positionInfoSource ( QObject * parent ) = 0 |
| virtual QGeoSatelliteInfoSource * | satelliteInfoSource ( QObject * parent ) = 0 |
| virtual QString | sourceName () const = 0 |
| virtual int | sourcePriority () const |
| virtual int | sourceVersion () const = 0 |
The QGeoPositionInfoSourceFactory class is a factory class used as the plugin interface for external providers of positioning data.
Implementers must provide a unique combination of sourceName() and sourceVersion() per plugin.
The other functions must be overridden by all plugins, other than sourcePriority() which defaults to returning 0. Higher values of priority will be preferred to lower ones.
Normally, the platform default position source will always overrule any plugin-based position source during a call to createDefaultSource(). However, a limited measure is available where needed to change this behaviour, using a system-wide configuration file.
The configuration file is in the system's default QSettings format, under Nokia/QtLocationPosAndSat (for example, on most Linux variants this is /etc/xdg/Nokia/QtLocationPosAndSat.conf). To set a default plugin source, set the value position.plugin.operator.whitelist to a string of the format "name,filename,hash,size" where name is the same as returned by the plugin's sourceName() function, size is the size of the shared library and hash is the library's SHA1 hash in hex format.
Destroys the position info source factory.
Returns a new QGeoPositionInfoSource associated with this plugin with parent parent . Can also return 0, in which case the factory with the next highest priority will be used instead.
Returns a new QGeoSatelliteInfoSource associated with this plugin with parent parent. Can also return 0, in which case the factory with the next highest priority will be used instead.
Returns the string used to identify the position provider behind this implementation.
The combination of sourceName() and sourceVersion() should be unique amongst the plugins.
Returns the priority of this factory in the list of available factories. Factories with higher values of priority will be preferred to those with lower values.
Returns the version of the plugin.
The combination of sourceName() and sourceVersion() should be unique amongst the plugins.