/*

* Copyright (c) 2009 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:   The header file of the CClockMCCTzIdMapper class.

*

*/

#ifndef __CLOCK_MCC_TZ_MAPPER_H__

#define __CLOCK_MCC_TZ_MAPPER_H__

// System includes

#include <f32file.h>

#include <e32base.h>

#include <barsc.h>

#include <barsread.h>

#include <etelmm.h>

// Forward declarations

class CTzId;

/**

* @class CClockMCCTzIdMapper

* @brief Provides a mapping between numeric Time Zone Ids generated by the

* 		 Time Zone Database compiler (tzcompiler.exe) as found in TzIdentities.ini,

* 		 and Mobile Country Code (MCC) as defined in ITU E.212

* 		 The international identification plan for mobile terminals and mobile users

* @dll clocktimezoneresolver.dll

*/

class CClockMCCTzIdMapper : public CBase

	{

	public:			//Construction and Destruction

		/**

		* @brief Creates a CClockMCCTzIdMapper object

		* @return CClockMCCTzIdMapper*

		*/

		static CClockMCCTzIdMapper* NewL();

		/**

		* @brief Creates a CClockMCCTzIdMapper object and leaves a copy on the cleanup stack

		* @return CClockMCCTzIdMapper*

		*/

		static CClockMCCTzIdMapper* NewLC();

		/**

		* @brief Destructor

		*/

		~CClockMCCTzIdMapper();

	public:			// New functions

		/**

		* @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 );

		/**

		* @brief Find the timezone ID for a given standard offset.

		* @param aStdTimeOffset Standard offset, of type TTimeIntervalMinutes.

		* @param aTzIdArray Array of timezone IDs.

		*/

		void TzIdFromOffsetL( const TTimeIntervalMinutes& aStdTimeOffset, RArray< CTzId >& aTzIdArray );

		/**

		* @brief Find the UTC offset for a particular zone ignoring DST changes

		* @param aTz Opened Timezone server session

		* @param aTzId Timezone to get offset for

		* @return Offset in minutes from UTC

		*/

		TInt UTCOffSetWithoutDSTChangesL( RTz& aTz, const CTzId& aTzId ) const;

		/**

		* @brief Find the UTC offset for a particular zone ignoring DST changes

		* @param aMCC Mobile Country Code to search for

		* @param aTzIdArray Array of CTzID objects to add matching zones to.

		*/

		void DoGetTzIdFromMCCL( TInt aMcc, RArray< CTzId >& aTzIdArray );

	private:

		/** 

		* @brief Symbian OS 2nd phase constructor is private.

		*/

		void ConstructL();

	private:		// Member data

		/**

		* @var iFs 

		* @brief An object of type RFs

		*/

		RFs							iFs;

		/**

		* @var iMCCResourceFile 

		* @brief An object of type RResourceFile

		*/

		RResourceFile 				iMCCResourceFile;

		/**

		* @var iResourceReader 

		* @brief An object of type TResourceReader

		*/

		TResourceReader 			iResourceReader;

		/**

		* @var iResourceBuffer 

		* @brief An object of type HBufC8*

		*/

		HBufC8* 					iResourceBuffer;

		/**

		* @var TMCCResourceOffset 

		* @brief Enum for resource

		*/

		enum TMCCResourceOffset

			{

			EMCCRssSignature = 1,		/** Offset of RSS signature. */

			EMCCFirstResource			/** The first resource we are interested in. */

			};

	};

#endif	// __CLOCK_MCC_TZ_MAPPER_H__

// End of file