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/*
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* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: The source file for the CClockMCCTzIdMapper class.
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*
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*/
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// System includes
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#include <tz.h>
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#include <tzdefines.h>
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#include <vtzrules.h>
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#include <bautils.h>
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// User includes
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#include "clockmcctzmapper.h"
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#include "clock_debug.h"
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// Constants
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// Literals
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_LIT( KMCCResourceFileDir, "\\resource\\mcc\\" );
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_LIT( KMCCResourceFileName, "mcc.rsc" );
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// ---------------------------------------------------------
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// CClockMCCTzIdMapper::NewL
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// rest of the details are commented in the header
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// ---------------------------------------------------------
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//
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CClockMCCTzIdMapper* CClockMCCTzIdMapper::NewL()
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{
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__PRINTS( "CClockMCCTzIdMapper::NewL - Entry" );
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CClockMCCTzIdMapper* self = CClockMCCTzIdMapper::NewLC();
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CleanupStack::Pop( self );
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__PRINTS( "CClockMCCTzIdMapper::NewL - Exit" );
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return self;
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}
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// ---------------------------------------------------------
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// CClockMCCTzIdMapper::NewLC
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// rest of the details are commented in the header
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// ---------------------------------------------------------
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//
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CClockMCCTzIdMapper* CClockMCCTzIdMapper::NewLC()
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{
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__PRINTS( "CClockMCCTzIdMapper::NewLC - Entry" );
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CClockMCCTzIdMapper* self = new ( ELeave ) CClockMCCTzIdMapper();
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CleanupStack::PushL( self );
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self->ConstructL();
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__PRINTS( "CClockMCCTzIdMapper::NewLC - Exit" );
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return self;
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}
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// ---------------------------------------------------------
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// CClockMCCTzIdMapper::ConstructL
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// rest of the details are commented in the header
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// ---------------------------------------------------------
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//
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void CClockMCCTzIdMapper::ConstructL()
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{
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__PRINTS( "CClockMCCTzIdMapper::ConstructL - Entry" );
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// Connect to the file server
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User::LeaveIfError( iFs.Connect() );
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// Get the full filename with drive letter
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TFileName rscFileName;
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TFindFile fileFinder( iFs );
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// TFindFile applies search order that is from drive Y to A, then Z
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TInt err = fileFinder.FindByDir( KMCCResourceFileName, KMCCResourceFileDir );
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if ( err == KErrNone )
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{
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// Found file.
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rscFileName = fileFinder.File();
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}
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else
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{
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__PRINTS( "Unable to open mcc.rsc. Leaving now!!" );
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// Leave with reason, file not found.
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User::Leave( KErrPathNotFound );
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}
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// Open the resource file. The resource file will not be localized as it
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// only contains integers, so there is no need to find a language specific
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// resource file name.
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iMCCResourceFile.OpenL( iFs, rscFileName );
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iMCCResourceFile.ConfirmSignatureL();
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// Assign buffer for holding resource
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TInt resourceId = iMCCResourceFile.Offset() + EMCCFirstResource;
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iResourceBuffer = iMCCResourceFile.AllocReadL( resourceId );
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__PRINTS( "CClockMCCTzIdMapper::ConstructL - Exit" );
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}
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// ---------------------------------------------------------
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// CClockMCCTzIdMapper::~CClockMCCTzIdMapper
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// rest of the details are commented in the header
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// ---------------------------------------------------------
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//
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CClockMCCTzIdMapper::~CClockMCCTzIdMapper()
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{
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__PRINTS( "CClockMCCTzIdMapper::~CClockMCCTzIdMapper - Entry" );
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// Close the resource file.
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iMCCResourceFile.Close();
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// Free up the resource buffer.
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if( iResourceBuffer )
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{
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delete iResourceBuffer;
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iResourceBuffer = NULL;
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}
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// Close the file server session.
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iFs.Close();
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__PRINTS( "CClockMCCTzIdMapper::~CClockMCCTzIdMapper - Exit" );
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}
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// ---------------------------------------------------------
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// CClockMCCTzIdMapper::UTCOffSetWithoutDSTChangesL
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// rest of the details are commented in the header
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// ---------------------------------------------------------
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//
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TInt CClockMCCTzIdMapper::UTCOffSetWithoutDSTChangesL( RTz& aTz, const CTzId& aTzId ) const
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{
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TInt timeOffset( KErrNotFound );
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TTime universalTime;
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universalTime.UniversalTime();
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// Get the current rules for the timezone rules
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CTzRules* currentRules = aTz.GetTimeZoneRulesL( aTzId, universalTime, universalTime, ETzUtcTimeReference );
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if( currentRules )
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{
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timeOffset = currentRules->InitialStdTimeOffset();
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delete currentRules;
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}
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return timeOffset;
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}
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// ---------------------------------------------------------
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// CClockMCCTzIdMapper::TzIdFromMccL
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// rest of the details are commented in the header
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// ---------------------------------------------------------
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//
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void CClockMCCTzIdMapper::TzIdFromMccL( const RMobilePhone::TMobilePhoneNetworkCountryCode& aMCC,
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RArray< CTzId >& aTzIdArray,
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const TTimeIntervalMinutes& aStdTimeOffset )
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{
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__PRINTS( "CClockMCCTzIdMapper::TzIdFromMccL - Entry" );
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// Convert the TMobilePhoneNetworkCountryCode to a TInt.
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TInt currentMcc;
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TLex lexUtil( aMCC );
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User::LeaveIfError( lexUtil.Val( currentMcc ) );
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__PRINT( "MCC: %d", currentMcc );
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// Get all the DST zones that match mcc
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DoGetTzIdFromMCCL( currentMcc, aTzIdArray );
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// Limit the returned entries to those with a specific StdTimeOffset
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TInt offset = aStdTimeOffset.Int();
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if( offset != -1 )
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{
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// Connect to Tz
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RTz tzHandle;
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CleanupClosePushL( tzHandle );
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User::LeaveIfError( tzHandle.Connect() );
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TInt currentZoneOffset;
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TInt count = aTzIdArray.Count();
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// Loop through the array in reverse order, removing all entries
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// with non matching standard time offsets.
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for( TInt index( count - 1 ); index >= KErrNone; --index )
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{
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currentZoneOffset = UTCOffSetWithoutDSTChangesL( tzHandle, aTzIdArray[ index ] );
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if( currentZoneOffset != offset )
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{
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aTzIdArray.Remove( index );
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}
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}
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// Cleanup.
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CleanupStack::PopAndDestroy( &tzHandle );
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}
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__PRINTS( "CClockMCCTzIdMapper::TzIdFromMccL - Exit" );
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}
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// ---------------------------------------------------------
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// CClockMCCTzIdMapper::TzIdFromOffsetL
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// rest of the details are commented in the header
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// ---------------------------------------------------------
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//
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void CClockMCCTzIdMapper::TzIdFromOffsetL( const TTimeIntervalMinutes& aStdTimeOffset, RArray< CTzId >& aTzIdArray )
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{
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__PRINTS( "CClockMCCTzIdMapper::TzIdFromOffsetL - Entry" );
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// Reset the position in the resource buffer
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iResourceReader.SetBuffer( iResourceBuffer );
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// First TInt is the number of array items
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TInt numberOfItems( iResourceReader.ReadInt16() );
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// Loop through the resource array reading the TzId
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for( TInt index( KErrNone ); index < numberOfItems; ++index )
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{
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TInt timeZoneId( iResourceReader.ReadInt16() );
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TInt mobileCC( iResourceReader.ReadInt16() );
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CTzId* timeZone = CTzId::NewL( timeZoneId );
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CleanupStack::PushL( timeZone );
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aTzIdArray.AppendL( *timeZone );
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CleanupStack::PopAndDestroy( timeZone );
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timeZone = NULL;
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}
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// Limit the returned entries to those with a specific StdTimeOffset
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TInt timeOffset( aStdTimeOffset.Int() );
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// Connect to Tz
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RTz tzHandle;
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CleanupClosePushL( tzHandle );
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User::LeaveIfError( tzHandle.Connect() );
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TInt currentZoneOffset;
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TInt idCount( aTzIdArray.Count() );
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// Loop through the array in reverse order, removing all entries
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// with non matching standard time offsets.
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for( TInt index( idCount - 1 ); index >= KErrNone; --index )
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{
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currentZoneOffset = UTCOffSetWithoutDSTChangesL( tzHandle, aTzIdArray[ index ] );
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if( currentZoneOffset != timeOffset )
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{
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aTzIdArray.Remove( index );
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}
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}
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CleanupStack::PopAndDestroy( &tzHandle );
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// This is a check to see if the timezone array has multiple entries with same timezone ID.
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// This happens because many countries have multiple MCCs for a single timezone ID.
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// For ex: India has MCCs 404 and 405 for the same timezone ID 1624 and offset GMT+5:30.
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TInt zoneCount( aTzIdArray.Count() );
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if( 1 < zoneCount )
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{
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CTzId& prevTzId = aTzIdArray[ KErrNone ];
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for( TInt zoneIndex( zoneCount - 1 ); zoneIndex > KErrNone; --zoneIndex )
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{
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CTzId& curTzId = aTzIdArray[ zoneIndex ];
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if( prevTzId != curTzId )
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{
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// There are multiple timezones. So skip.
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break;
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}
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else
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{
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// Keep removing duplicate zone IDs.
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aTzIdArray.Remove( zoneIndex );
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}
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}
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}
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__PRINTS( "CClockMCCTzIdMapper::TzIdFromOffsetL - Exit" );
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}
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// ---------------------------------------------------------
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// CClockMCCTzIdMapper::DoGetTzIdFromMCCL
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// rest of the details are commented in the header
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// ---------------------------------------------------------
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//
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void CClockMCCTzIdMapper::DoGetTzIdFromMCCL( TInt aMcc, RArray< CTzId >& aTzIdArray )
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{
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__PRINTS( "CClockMCCTzIdMapper::DoGetTzIdFromMCCL - Entry" );
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__PRINT( "MCC:%d", aMcc );
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// Reset the position in the resource buffer.
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iResourceReader.SetBuffer( iResourceBuffer );
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// First TInt is the number of array items.
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TInt numberOfItems( iResourceReader.ReadInt16() );
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TInt timeZoneId;
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TInt mobileCC;
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CTzId* matchingDSTZone( NULL );
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// Loop through the resource array reading the TzId / MCC pairs.
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for( TInt index( KErrNone ); index < numberOfItems; ++index )
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{
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timeZoneId = iResourceReader.ReadInt16();
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mobileCC = iResourceReader.ReadInt16();
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// Found a match - create a new CTzId and append to the TzId array.
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if( mobileCC == aMcc )
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{
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matchingDSTZone = CTzId::NewL( timeZoneId );
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CleanupStack::PushL( matchingDSTZone );
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aTzIdArray.AppendL( *matchingDSTZone );
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CleanupStack::PopAndDestroy( matchingDSTZone );
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matchingDSTZone = NULL;
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}
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}
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__PRINTS( "CClockMCCTzIdMapper::DoGetTzIdFromMCCL - Exit" );
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}
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// ---------------------------------------------------------
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// CClockMCCTzIdMapper::MCCFromTzIdL
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// rest of the details are commented in the header
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// ---------------------------------------------------------
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//
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TInt CClockMCCTzIdMapper::MCCFromTzIdL( const CTzId& aTzId )
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{
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__PRINTS( "CClockMCCTzIdMapper::MCCFromTzIdL - Entry" );
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// Reset the position in the resource buffer
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iResourceReader.SetBuffer( iResourceBuffer );
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// First TInt is the number of array items
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TInt numberOfItems( iResourceReader.ReadInt16() );
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TInt timeZoneId;
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TInt mobileCC;
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// Loop through the resource array reading the TzId / MCC pairs
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for( TInt index( KErrNone ); index < numberOfItems; ++index )
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{
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timeZoneId = iResourceReader.ReadInt16();
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mobileCC = iResourceReader.ReadInt16();
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// Found a match return the mcc
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if( timeZoneId == aTzId.TimeZoneNumericID() )
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{
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__PRINT( "Found a match, MCC - %d", mobileCC );
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return mobileCC;
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}
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}
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__PRINTS( "CClockMCCTzIdMapper::MCCFromTzIdL - Exit" );
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return KErrNotFound;
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}
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// End of file
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