clock2/clockengines/clocktimezoneresolver/inc/clocktimezoneresolverimpl.h
changeset 0 f979ecb2b13e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/clock2/clockengines/clocktimezoneresolver/inc/clocktimezoneresolverimpl.h	Tue Feb 02 10:12:19 2010 +0200
@@ -0,0 +1,240 @@
+/*
+* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:   This is the header file of the CClockTimeZoneResolverImpl class.
+*
+*/
+
+#ifndef __CLOCK_TIMEZONE_RESOLVER_IMPL_H__ 
+#define __CLOCK_TIMEZONE_RESOLVER_IMPL_H__
+
+// System includes
+#include <e32base.h>
+#include <etelmm.h>
+#include <tz.h>
+#include <tzconverter.h>
+#include <tzlocalizationdatatypes.h>
+#include <vtzrules.h>
+
+// User includes
+#include "clocktimesourceinterface.hrh"
+
+// Forward declarations
+class CClockMCCTzIdMapper;
+
+// Class declaration
+/** 
+* @class CClockTimeZoneResolverImpl
+* @brief An instance of class CClockTimeZoneResolverImpl which is the actual implementation of timezone mapper.
+* @dll clocktimezoneresolver.dll
+*/
+class CClockTimeZoneResolverImpl : public CBase
+	{
+	public:				// Constructor and destructor
+	
+		/**
+		* @brief Creates a CClockTimeZoneResolverImpl object
+		* @return CClockTimeZoneResolverImpl*
+		*/
+    	static CClockTimeZoneResolverImpl* NewL();
+		
+		/**
+		* @brief Destroy the object and release all memory objects
+		*/
+	  	~CClockTimeZoneResolverImpl();
+	    
+	public:				// New functions
+	
+		/**
+		* @brief Gets the timezone based on the MCC and NITZ info.
+		* @param aTimeInfo Time information got from the plugin.
+		* @param aMcc Mobile country code.
+		* @param aTzId The matching timezone ID.
+		* @return KErrNone if a matching timezone ID is found, KErrNotFound otherwise.
+		*/
+		TInt GetTimeZoneL( const STimeAttributes& aTimeInfo, 
+						   const RMobilePhone::TMobilePhoneNetworkCountryCode& aMcc,
+						   TInt& aTzId );
+		
+		/**
+		* @brief Find all TzIds for a given MCC with optional matching StdTimeOffset
+		* @param aMCC Mobile Country Code to search for
+		* @param aTzIdArray Array of CTzID objects to add matching zones to.
+		* @param aStdTimeOffset Limit returned zones to zones with a matching offset
+		*/
+		void TzIdFromMccL( const RMobilePhone::TMobilePhoneNetworkCountryCode& aMCC,
+						   RArray< CTzId >& aTzIdArray,
+						   const TTimeIntervalMinutes& aStdTimeOffset = -1 );
+		
+		/**
+		* @brief Find the MCC for a given TzId
+		* @param aTzId CTzId to search for
+		* @return the MCC of the DST zone, or KErrNotFound if not found.
+		*/
+		TInt MCCFromTzIdL( const CTzId& aTzId );
+		
+	private:			// Constructor
+	
+		/**
+		* @brief C++ default constructor
+		*/
+	  	CClockTimeZoneResolverImpl();
+		
+		/** 
+		* @brief Symbian OS 2nd phase constructor is private.
+		*/
+		void ConstructL();
+	  
+	private:			// New functions
+		
+		/** 
+		* @brief Uses the received Nitz UTC offset in conjunction with the
+		* 		 Mobile Country Code to calculate which DST zone we are in.
+		* @param aTimeInfo Time information got from any of the plugins.
+		* @param aMcc Mobile Country code got from MCC Listener. 
+		* @param aTzId Contains the valid timezone ID, -1 otherwise.
+		* @return TInt KErrNone if successful, KErrNotFound otherwise.
+		*/
+		TInt FindDstZoneIdFromMccAndUtcOffsetL( const STimeAttributes& aTimeInfo, 
+										  	    const RMobilePhone::TMobilePhoneNetworkCountryCode& aMcc,
+										  	    TInt& aTzId );
+										  	   
+		/** 
+		* @brief Gets all the localized timezones for the corresponding mcc and timezone offset.
+		* @param aMcc Mobile Country code got from MCC Listener.
+		* @param aTimezoneOffset The standard offset got from the plugin.
+		* @param aTzLocalisedArray Contains all the matching localized timezones.
+		*/
+		void GetLocalizedZonesL( const RMobilePhone::TMobilePhoneNetworkCountryCode& aMcc,
+                               	 const TTimeIntervalMinutes& aTimezoneOffset,                                            
+                                 CTzLocalizedTimeZoneArray& aTzLocalisedArray );
+        
+        /** 
+		* @brief Gets the list of timezone ID's given an array of localized timezones.
+		* @param aLocTimeZones List of localized timezones.
+		* @param aZoneIdArray Array containing all matching timezone ID's.
+		* @param aNwLocalTime Local time.
+		* @param aNwUtcTime UTC time.
+		*/                       
+        void FindMatchingLocalisedZoneL( CTzLocalizedTimeZoneArray& aLocTimeZones, 
+                           	    		 RPointerArray<CTzId>& aZoneIdArray, 
+                                		 TTime& aNwLocalTime, 
+                                		 TTime& aNwUtcTime );
+	    
+       	/** 
+		* @brief Gets all the timezones for the corresponding mcc and timezone offset.
+		* @param aMcc Mobile Country code got from MCC Listener.
+		* @param aTimezoneOffset The standard offset got from the plugin.
+		* @param aTzUnLocalizedArray Contains all the matching timezones.
+		*/
+
+        void GetAllUnLocalizedZonesL( const RMobilePhone::TMobilePhoneNetworkCountryCode& aMcc,
+                                      const TTimeIntervalMinutes& aTimezoneOffset,                                                                                        
+                                      RArray< CTzId >& aTzUnLocalizedArray);
+
+
+        /** 
+		* @brief Gets the list of timezone ID's given an array of unlocalized timezones.
+		* @param aUnLocalizedTzArray List of unlocalized timezones.
+		* @param aZoneIdArray Array containing all matching timezone ID's.
+		* @param aNwLocalTime Local time.
+		* @param aNwUtcTime UTC time.
+		*/                       
+ 
+        void FindMatchingUnLocalizedZoneL( RArray< CTzId >& aUnLocalizedTzArray, 
+                                           RPointerArray<CTzId>& aZoneIdArray, 
+                                           TTime& aNwLocalTime, 
+                                           TTime& aNwUtcTime );
+                                           
+        /**
+        * @brief Find DstOffset and standard Offset for the time zone aTzId using CTzRules
+        * @param aDstOffset referance to DstOffset
+        * @param aStdOffset referance to Standard Offset
+        * @param aTzId time zone Id for which DstOffset and StdOffset is to be found
+        */
+        void GetStdOffSetAndDstOffSetL( TInt32& aDstOffset, 
+                                      	TInt32& aStdOffset,
+                                      	const CTzId& aTzId );                                    
+        
+        /**
+        * @brief Finds the matching timezone ID with the specified offset.
+        * @param aTzOffset The offset for which we are trying to find the timezone ID.
+        * @param aTzId Contains the timezone ID matching the offset.
+        * @return KErrNotFound if no matches were found, KErrNone otherwise.
+        */
+        TInt GetTimeZoneIdWithOffsetL( const TTimeIntervalMinutes& aTzOffset,
+                                       TInt& aTzId );
+        /**
+        * @brief Finds the matching timezone ID with the specified MCC.
+        * @param aMcc The MCC for which we are trying to find the timezone ID.
+        * @param aTzOffset The offset for which we are trying to find the timezone ID.
+        * @param aTzId Contains the timezone ID matching the MCC.
+        * @return KErrNotFound if no matches were found, KErrNone otherwise.
+        */
+        TInt GetTimeZoneIdWithMccL( const RMobilePhone::TMobilePhoneNetworkCountryCode& aMcc,
+                                    const TTimeIntervalMinutes& aTzOffset,
+                                    TInt& aTzId );
+        
+        /**
+        * @brief Tries to narrow down to a single timezone ID from the timezone array
+        * @param aLocTimeZones The array which contains all matching timezones.
+        * @param aTzId Contains the timezone ID, if found.
+        * @return KErrNotFound if no matches were found, KErrNone otherwise.
+        */
+        TInt ProcessMatchingZones( CTzLocalizedTimeZoneArray& aLocTimeZones, TInt& aTzId );
+        
+        
+        /**
+        * @brief Tries to get timezone ID based on the dstoffset.
+        * @param aLocTimeZones The array which contains all matching timezones.
+        * @param aTzOffset The offset for which we are trying to find the timezone ID.
+        * @param aDstOffset The DST offset for which we are trying to find the timezone ID.
+        * @return KErrNotFound if no matches were found, KErrNone otherwise.
+        */
+        TInt GetCorrectZone( CTzLocalizedTimeZoneArray& aLocTimeZones, 
+                             const TTimeIntervalMinutes& aTzOffset,
+                             const TTimeIntervalMinutes& aDstOffset, TInt& aTzId );
+        
+        /**
+        * @brief Gets the localized timezones for each zone that matches.
+        * @param aLocTimeZones The array which contains all matching timezones.
+        * @param aTzId Contains the timezone ID, if found.
+        * @return KErrNone if we have only one matching zone.
+        */
+        TInt GetMatchingZonesL( CTzLocalizedTimeZoneArray* aLocTimeZones, TInt& aTzId );
+ 
+	private:			// Data
+		
+		/**
+		* @var iMccTzIdMapper 
+		* @brief Interface to the MCC->TzIDMapper of type CMCCTzIdMapper*
+		*/
+		CClockMCCTzIdMapper*		iMccTzIdMapper;
+		
+		/**
+		* @var iTempZoneIds 
+		* @brief Array of timezone id's.
+		*/
+		RPointerArray< CTzId >		iTempZoneIds;
+		
+		/**
+		* @var iRtz 
+		* @brief Object of type RTz.
+		*/
+		RTz 						iRtz;
+
+	};
+
+#endif		// __CLOCK_TIMEZONE_RESOLVER_IMPL_H__
+
+// End of file