src/location/qgeopositioninfosource_s60_p.h
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
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    16 ** GNU Lesser General Public License Usage
       
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    33 **
       
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    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #ifndef QGEOPOSITIONINFOSOURCES60_H
       
    43 #define QGEOPOSITIONINFOSOURCES60_H
       
    44 
       
    45 // INCLUDES
       
    46 #include <e32std.h>
       
    47 #include <e32base.h>
       
    48 #include <lbs.h>
       
    49 #include "qgeopositioninfosource.h"
       
    50 #include "qmlbackendao_s60_p.h"
       
    51 #include "notificationcallback_s60_p.h"
       
    52 
       
    53 #define MAX_SIZE 5
       
    54 
       
    55 QTM_BEGIN_NAMESPACE
       
    56 
       
    57 // CLASS DECLARATION
       
    58 //forward declaration
       
    59 class CQMLBackendAO;
       
    60 
       
    61 class CPosMethodInfo
       
    62 {
       
    63 public:
       
    64     // A unique id for the positioning module
       
    65     TPositionModuleId  mUid;
       
    66 
       
    67     // Positioning Module (satellite/ non-satellite)
       
    68     QGeoPositionInfoSource::PositioningMethod  mPosMethod;
       
    69 
       
    70     //
       
    71     int  mStatus;
       
    72 
       
    73     // time to first and next fix from the location server
       
    74     TTimeIntervalMicroSeconds  mTimeToFirstFix;
       
    75     TTimeIntervalMicroSeconds  mTimeToNextFix;
       
    76 
       
    77     // Accuracy
       
    78     double mHorizontalAccuracy;
       
    79 
       
    80     // Flags whether the positioning technology is currently available or not.
       
    81     bool mIsAvailable;
       
    82 };
       
    83 
       
    84 
       
    85 /**
       
    86  *  CQGeoPositionInfoSourceS60
       
    87  *
       
    88  */
       
    89 class CQGeoPositionInfoSourceS60 : public INotificationCallback,
       
    90             public QGeoPositionInfoSource
       
    91 
       
    92 {
       
    93 public:
       
    94     // Constructors and destructor
       
    95     /**
       
    96      * Destructor.
       
    97      */
       
    98     ~CQGeoPositionInfoSourceS60();
       
    99 
       
   100     /**
       
   101      * Two-phased constructor.
       
   102      */
       
   103     static CQGeoPositionInfoSourceS60* NewL(QObject* aParent);
       
   104 
       
   105     /**
       
   106      * Two-phased constructor.
       
   107      */
       
   108     static CQGeoPositionInfoSourceS60* NewLC(QObject* aParent);
       
   109 
       
   110     /**
       
   111      * returns the last known position
       
   112      */
       
   113     QGeoPositionInfo lastKnownPosition(bool aFromSatellitePositioningMethodsOnly = false) const;
       
   114 
       
   115     /**
       
   116      * returns the minimum update interval
       
   117      */
       
   118     int minimumUpdateInterval() const;
       
   119 
       
   120     /**
       
   121      * Sets the preferred PositioningMethod, if available
       
   122      * otherwise sets the default poistioning mmethod
       
   123      */
       
   124     void setPreferredPositioningMethods(PositioningMethods aMethods);
       
   125 
       
   126     /**
       
   127      * Sets the interval for the regular position notifications
       
   128      */
       
   129     void setUpdateInterval(int aMilliSec);
       
   130 
       
   131     /**
       
   132      * Returns the supported Positioning Methods
       
   133      */
       
   134     PositioningMethods supportedPositioningMethods() const {
       
   135         return mSupportedMethods;
       
   136     }
       
   137 
       
   138     /**
       
   139      * Notification methods from active object.
       
   140      * Notifies device status, position value, and status
       
   141      */
       
   142     void updateDeviceStatus(void) ;
       
   143 
       
   144     /**
       
   145      * Update the position info
       
   146      */
       
   147     void updatePosition(HPositionGenericInfo* aPosInfo, int aError);
       
   148 
       
   149 
       
   150     /**
       
   151      * Gets the handle of the PositionServer
       
   152      */
       
   153     RPositionServer& getPositionServer();
       
   154 
       
   155     /*
       
   156      * checks whether the object is valid
       
   157      */
       
   158     inline TBool isValid() {
       
   159         if (mDevStatusUpdateAO && mRegUpdateAO)
       
   160             return TRUE;
       
   161         else
       
   162             return FALSE;
       
   163     }
       
   164 
       
   165     inline TPositionModuleId getCurrentPositonModuleID() {
       
   166         return mCurrentModuleId;
       
   167     }
       
   168 
       
   169     inline TPositionModuleId getRequestUpdateModuleID() {
       
   170         return mReqModuleId;
       
   171     }
       
   172 
       
   173 public slots :
       
   174     // for request update
       
   175     void requestUpdate(int timeout = 5000);
       
   176 
       
   177     // starts the regular updates
       
   178     virtual void startUpdates();
       
   179 
       
   180     // stops the regular updates
       
   181     virtual void stopUpdates();
       
   182 
       
   183 
       
   184 private:
       
   185 
       
   186     /**
       
   187      * Constructor for performing 1st stage construction
       
   188      */
       
   189     CQGeoPositionInfoSourceS60(QObject* aParent = 0);
       
   190 
       
   191     /**
       
   192      * EPOC default constructor for performing 2nd stage construction
       
   193      */
       
   194     void ConstructL();
       
   195 
       
   196     void updateStatus(TPositionModuleInfo aModInfo, TInt aStatus);
       
   197 
       
   198     void updateAvailableTypes(void);
       
   199 
       
   200     //get the index of the module in the List array
       
   201     TInt checkModule(TPositionModuleId aId) const;
       
   202 
       
   203     //get the index of the position module based on the preferred methods
       
   204     TInt getIndexPositionModule(TUint8 aBits, PositioningMethods aPosMethods = AllPositioningMethods) const;
       
   205 
       
   206     //get the more accuarte method with time to first fix < than timeout
       
   207     TInt getMoreAccurateMethod(TInt aTimeout, TUint8 aBits);
       
   208 
       
   209     void TPositionInfo2QGeoPositionInfo(HPositionGenericInfo *mPosInfo,
       
   210                                         QGeoPositionInfo& posUpdate);
       
   211 
       
   212 protected:
       
   213     void connectNotify(const char *aSignal);
       
   214 
       
   215     void disconnectNotify(const char *aSignal);
       
   216 
       
   217 private:
       
   218     /**
       
   219     *  current module ID
       
   220     */
       
   221     TPositionModuleId mCurrentModuleId;
       
   222 
       
   223     /**
       
   224     *prvmoduleID
       
   225     */
       
   226     TPositionModuleId mReqModuleId;
       
   227 
       
   228     /**
       
   229     * Active object for device status updates
       
   230     */
       
   231     CQMLBackendAO * mDevStatusUpdateAO;
       
   232 
       
   233     /**
       
   234     * Active object for requestUpdate
       
   235     */
       
   236     CQMLBackendAO * mReqUpdateAO;
       
   237 
       
   238     /**
       
   239     * Active object for regular updates.
       
   240     */
       
   241     CQMLBackendAO * mRegUpdateAO;
       
   242 
       
   243     /**
       
   244      * Positioner server
       
   245      */
       
   246     RPositionServer mPositionServer;
       
   247 
       
   248     /**
       
   249     *  list of supported position methods
       
   250     */
       
   251     CPosMethodInfo mList[MAX_SIZE];
       
   252 
       
   253     PositioningMethods mSupportedMethods;
       
   254 
       
   255     PositioningMethod mCurrentMethod;
       
   256 
       
   257     /**
       
   258      * maintaiss the size of thr CPosMethodInfo array
       
   259      */
       
   260     int mListSize;
       
   261 
       
   262     /*
       
   263      * query for the status
       
   264      */
       
   265     TPositionModuleStatusEvent  mStatusEvent;
       
   266 
       
   267     /*
       
   268      * maintain the startUpdates status
       
   269      */
       
   270     TBool mStartUpdates;
       
   271 
       
   272     TBool mRegularUpdateTimedOut;
       
   273 
       
   274     /*
       
   275      * flags for the modules
       
   276      */
       
   277     TUint8  mModuleFlags;
       
   278 };
       
   279 
       
   280 QTM_END_NAMESPACE
       
   281 
       
   282 #endif // CQGEOPOSITIONINFOSOURCES60_H