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| |
| #include "qgeocodingmanager.h" |
| #include "qgeocodingmanager_p.h" |
| #include "qgeocodingmanagerengine.h" |
| |
| #include "qgeorectangle.h" |
| #include "qgeocircle.h" |
| |
| #include <QLocale> |
| |
| QT_BEGIN_NAMESPACE |
| |
| /*! |
| \class QGeoCodingManager |
| \inmodule QtLocation |
| \ingroup QtLocation-geocoding |
| \since 5.6 |
| |
| \brief The QGeoCodingManager class provides support for geocoding |
| operations. |
| |
| The geocode() and reverseGeocode() functions return |
| QGeoCodeReply objects, which manage these operations and report on the |
| result of the operations and any errors which may have occurred. |
| |
| The geocode() and reverseGeocode() functions can be used to convert |
| QGeoAddress instances to QGeoCoordinate instances and vice-versa. |
| |
| The geocode() function is also overloaded to allow a user to perform a free text |
| geocoding operation, if the string provided can be interpreted as |
| an address it can be geocoded to coordinate information. |
| |
| Instances of QGeoCodingManager can be accessed with |
| QGeoServiceProvider::geocodingManager(). |
| */ |
| |
| /*! |
| Constructs a new manager with the specified \a parent and with the |
| implementation provided by \a engine. |
| |
| This constructor is used interally by QGeoServiceProviderFactory. Regular |
| users should acquire instances of QGeoCodingManager with |
| QGeoServiceProvider::geocodingManager(); |
| */ |
| QGeoCodingManager::QGeoCodingManager(QGeoCodingManagerEngine *engine, QObject *parent) |
| : QObject(parent), |
| d_ptr(new QGeoCodingManagerPrivate()) |
| { |
| d_ptr->engine = engine; |
| if (d_ptr->engine) { |
| d_ptr->engine->setParent(this); |
| |
| connect(d_ptr->engine, |
| SIGNAL(finished(QGeoCodeReply*)), |
| this, |
| SIGNAL(finished(QGeoCodeReply*))); |
| |
| connect(d_ptr->engine, |
| SIGNAL(error(QGeoCodeReply*,QGeoCodeReply::Error,QString)), |
| this, |
| SIGNAL(error(QGeoCodeReply*,QGeoCodeReply::Error,QString))); |
| } else { |
| qFatal("The geocoding manager engine that was set for this geocoding manager was NULL."); |
| } |
| } |
| |
| /*! |
| Destroys this manager. |
| */ |
| QGeoCodingManager::~QGeoCodingManager() |
| { |
| delete d_ptr; |
| } |
| |
| /*! |
| Returns the name of the engine which implements the behaviour of this |
| geocoding manager. |
| |
| The combination of managerName() and managerVersion() should be unique |
| amongst the plugin implementations. |
| */ |
| QString QGeoCodingManager::managerName() const |
| { |
| // if (!d_ptr->engine) |
| // return QString(); |
| |
| return d_ptr->engine->managerName(); |
| } |
| |
| /*! |
| Returns the version of the engine which implements the behaviour of this |
| geocoding manager. |
| |
| The combination of managerName() and managerVersion() should be unique |
| amongst the plugin implementations. |
| */ |
| int QGeoCodingManager::managerVersion() const |
| { |
| // if (!d_ptr->engine) |
| // return -1; |
| |
| return d_ptr->engine->managerVersion(); |
| } |
| |
| /*! |
| Begins the geocoding of \a address. Geocoding is the process of finding a |
| coordinate that corresponds to a given address. |
| |
| A QGeoCodeReply object will be returned, which can be used to manage the |
| geocoding operation and to return the results of the operation. |
| |
| This manager and the returned QGeoCodeReply object will emit signals |
| indicating if the operation completes or if errors occur. |
| |
| If supportsGeocoding() returns false an |
| QGeoCodeReply::UnsupportedOptionError will occur. |
| |
| Once the operation has completed, QGeoCodeReply::locations() can be used to |
| retrieve the results, which will consist of a list of QGeoLocation objects. |
| These objects represent a combination of coordinate and address data. |
| |
| The address data returned in the results may be different from \a address. |
| This will usually occur if the geocoding service backend uses a different |
| canonical form of addresses or if \a address was only partially filled out. |
| |
| If \a bounds is non-null and is a valid QGeoShape it will be used to |
| limit the results to those that are contained within \a bounds. This is |
| particularly useful if \a address is only partially filled out, as the |
| service will attempt to geocode all matches for the specified data. |
| |
| The user is responsible for deleting the returned reply object, although |
| this can be done in the slot connected to QGeoCodingManager::finished(), |
| QGeoCodingManager::error(), QGeoCodeReply::finished() or |
| QGeoCodeReply::error() with deleteLater(). |
| */ |
| QGeoCodeReply *QGeoCodingManager::geocode(const QGeoAddress &address, const QGeoShape &bounds) |
| { |
| return d_ptr->engine->geocode(address, bounds); |
| } |
| |
| |
| /*! |
| Begins the reverse geocoding of \a coordinate. Reverse geocoding is the |
| process of finding an address that corresponds to a given coordinate. |
| |
| A QGeoCodeReply object will be returned, which can be used to manage the |
| reverse geocoding operation and to return the results of the operation. |
| |
| This manager and the returned QGeoCodeReply object will emit signals |
| indicating if the operation completes or if errors occur. |
| |
| If supportsReverseGeocoding() returns false an |
| QGeoCodeReply::UnsupportedOptionError will occur. |
| |
| At that point QGeoCodeReply::locations() can be used to retrieve the |
| results, which will consist of a list of QGeoLocation objects. These objects |
| represent a combination of coordinate and address data. |
| |
| The coordinate data returned in the results may be different from \a |
| coordinate. This will usually occur if the reverse geocoding service |
| backend shifts the coordinates to be closer to the matching addresses, or |
| if the backend returns results at multiple levels of detail. |
| |
| If multiple results are returned by the reverse geocoding service backend |
| they will be provided in order of specificity. This normally occurs if the |
| backend is configured to reverse geocode across multiple levels of detail. |
| As an example, some services will return address and coordinate pairs for |
| the street address, the city, the state and the country. |
| |
| If \a bounds is non-null and a valid QGeoRectangle it will be used to |
| limit the results to those that are contained within \a bounds. |
| |
| The user is responsible for deleting the returned reply object, although |
| this can be done in the slot connected to QGeoCodingManager::finished(), |
| QGeoCodingManager::error(), QGeoCodeReply::finished() or |
| QGeoCodeReply::error() with deleteLater(). |
| */ |
| QGeoCodeReply *QGeoCodingManager::reverseGeocode(const QGeoCoordinate &coordinate, const QGeoShape &bounds) |
| { |
| return d_ptr->engine->reverseGeocode(coordinate, bounds); |
| } |
| |
| /*! |
| Begins geocoding for a location matching \a address. |
| |
| A QGeoCodeReply object will be returned, which can be used to manage the |
| geocoding operation and to return the results of the operation. |
| |
| This manager and the returned QGeoCodeReply object will emit signals |
| indicating if the operation completes or if errors occur. |
| |
| Once the operation has completed, QGeoCodeReply::locations() can be used to |
| retrieve the results, which will consist of a list of QGeoLocation objects. |
| These objects represent a combination of coordinate and address data. |
| |
| If \a limit is -1 the entire result set will be returned, otherwise at most |
| \a limit results will be returned. |
| |
| The \a offset parameter is used to ask the geocoding service to not return the |
| first \a offset results. |
| |
| The \a limit and \a offset results are used together to implement paging. |
| |
| If \a bounds is non-null and a valid QGeoShape it will be used to |
| limit the results to those that are contained within \a bounds. |
| |
| The user is responsible for deleting the returned reply object, although |
| this can be done in the slot connected to QGeoCodingManager::finished(), |
| QGeoCodingManager::error(), QGeoCodeReply::finished() or |
| QGeoCodeReply::error() with deleteLater(). |
| */ |
| QGeoCodeReply *QGeoCodingManager::geocode(const QString &address, |
| int limit, |
| int offset, |
| const QGeoShape &bounds) |
| { |
| QGeoCodeReply *reply = d_ptr->engine->geocode(address, |
| limit, |
| offset, |
| bounds); |
| return reply; |
| } |
| |
| /*! |
| Sets the locale to be used by this manager to \a locale. |
| |
| If this geocoding manager supports returning the results |
| in different languages, they will be returned in the language of \a locale. |
| |
| The locale used defaults to the system locale if this is not set. |
| */ |
| void QGeoCodingManager::setLocale(const QLocale &locale) |
| { |
| d_ptr->engine->setLocale(locale); |
| } |
| |
| /*! |
| Returns the locale used to hint to this geocoding manager about what |
| language to use for the results. |
| */ |
| QLocale QGeoCodingManager::locale() const |
| { |
| return d_ptr->engine->locale(); |
| } |
| |
| /*! |
| \fn void QGeoCodingManager::finished(QGeoCodeReply *reply) |
| |
| This signal is emitted when \a reply has finished processing. |
| |
| If reply::error() equals QGeoCodeReply::NoError then the processing |
| finished successfully. |
| |
| This signal and QGeoCodeReply::finished() will be emitted at the same |
| time. |
| |
| \note Do not delete the \a reply object in the slot connected to this |
| signal. Use deleteLater() instead. |
| */ |
| |
| /*! |
| \fn void QGeoCodingManager::error(QGeoCodeReply *reply, QGeoCodeReply::Error error, QString errorString) |
| |
| This signal is emitted when an error has been detected in the processing of |
| \a reply. The QGeoCodingManager::finished() signal will probably follow. |
| |
| The error will be described by the error code \a error. If \a errorString is |
| not empty it will contain a textual description of the error. |
| |
| This signal and QGeoCodeReply::error() will be emitted at the same time. |
| |
| \note Do not delete the \a reply object in the slot connected to this |
| signal. Use deleteLater() instead. |
| */ |
| |
| /******************************************************************************* |
| *******************************************************************************/ |
| |
| QGeoCodingManagerPrivate::QGeoCodingManagerPrivate() |
| : engine(0) {} |
| |
| QGeoCodingManagerPrivate::~QGeoCodingManagerPrivate() |
| { |
| delete engine; |
| } |
| |
| /******************************************************************************* |
| *******************************************************************************/ |
| |
| QT_END_NAMESPACE |