vtuis/videotelui/src/cvtuidtmfbuffer.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 15 Jul 2010 18:41:45 +0300
branchRCL_3
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parent 0 ed9695c8bcbe
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permissions -rw-r--r--
Revision: 201025 Kit: 2010127
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/*
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* Copyright (c) 2007 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:   Implementation of DTMF buffer class
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*
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*/
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#include <coemain.h>
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#include <cvtlogger.h>
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#include "cvtuidtmfbuffer.h"
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#include "tvtuiwsevent.h"
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#include "VtUiUtility.h"
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// Time after which buffer will be automatically reset (4 seconds).
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const TInt KBufferResetInterval = 4 * 1000000;
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// ---------------------------------------------------------------------------
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// CVtUiDTMFBuffer::NewL
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// ---------------------------------------------------------------------------
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//
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CVtUiDTMFBuffer* CVtUiDTMFBuffer::NewL( const CCoeEnv& aCoeEnv )
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    {
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    __VTPRINTENTER( "CVtUiDTMFBuffer.NewL" )
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    CVtUiDTMFBuffer* self = new ( ELeave ) CVtUiDTMFBuffer( aCoeEnv );
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    CleanupStack::Pop(); // self
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    __VTPRINTEXIT( "CVtUiDTMFBuffer.NewL" )
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// CVtUiDTMFBuffer::~CVtUiDTMFBuffer
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// ---------------------------------------------------------------------------
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//
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CVtUiDTMFBuffer::~CVtUiDTMFBuffer()
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    {
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    __VTPRINTENTER( "CVtUiDTMFBuffer.~" )
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    Cancel();
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    iTimer.Close();
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    __VTPRINTEXIT( "CVtUiDTMFBuffer.~" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiDTMFBuffer::Append
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// ---------------------------------------------------------------------------
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//
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TBool CVtUiDTMFBuffer::Append( TChar aChar )
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    {
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    __VTPRINTENTER( "CVtUiDTMFBuffer.Append" )
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    TBool result( EFalse );
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    if ( VtUiUtility::IsDTMFCharacter( aChar ) )
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        {
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        if ( iBuffer.Length() == iBuffer.MaxLength() )
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            {
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            iBuffer = iBuffer.Right( 1 );
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            }
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        iBuffer.Append( aChar );
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        StartTimer();
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        result = ETrue;
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        }
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    __VTPRINTEXITR( "CVtUiDTMFBuffer.Append %d", result )
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    return result;
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    }
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// ---------------------------------------------------------------------------
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// CVtUiDTMFBuffer::Reset
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// ---------------------------------------------------------------------------
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//
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void CVtUiDTMFBuffer::Reset()
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    {
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    __VTPRINTENTER( "CVtUiDTMFBuffer.Reset" )
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    Cancel();
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    ResetBuffer();
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    __VTPRINTEXIT( "CVtUiDTMFBuffer.Reset" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiDTMFBuffer::Activate
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// ---------------------------------------------------------------------------
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//
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void CVtUiDTMFBuffer::Activate()
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    {
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    __VTPRINTENTER( "CVtUiDTMFBuffer.Activate" )
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    TVtUiWsEvent< MVtUiNumberSource > event(
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        EVtUiWsEventNumberSourceActivate, this );
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    iCoeEnv.WsSession().SendEventToWindowGroup(
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        iCoeEnv.RootWin().WindowGroupId(), event );
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    __VTPRINTEXIT( "CVtUiDTMFBuffer.Activate" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiDTMFBuffer::Deactivate
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// ---------------------------------------------------------------------------
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//
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void CVtUiDTMFBuffer::Deactivate()
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    {
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    __VTPRINTENTER( "CVtUiDTMFBuffer.Deactivate" )
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    TVtUiWsEvent< MVtUiNumberSource > event(
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        EVtUiWsEventNumberSourceDeactivate, this );
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    iCoeEnv.WsSession().SendEventToWindowGroup(
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        iCoeEnv.RootWin().WindowGroupId(), event );
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    __VTPRINTEXIT( "CVtUiDTMFBuffer.Deactivate" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiDTMFBuffer::GetContents
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// ---------------------------------------------------------------------------
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//
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void CVtUiDTMFBuffer::GetContents( TDes& aContents ) const
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    {
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    __VTPRINTENTER( "CVtUiDTMFBuffer.GetContents" )
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    const TInt length( aContents.MaxLength() < iBuffer.Length() ?
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            aContents.MaxLength() : iBuffer.Length() );
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    if ( length )
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        {
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        aContents = iBuffer.Mid( 0, length );
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        }
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    else
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        {
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        aContents.Zero();
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        }
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    __VTPRINTEXIT( "CVtUiDTMFBuffer.GetContents" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiDTMFBuffer::DoCancel
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// ---------------------------------------------------------------------------
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//
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void CVtUiDTMFBuffer::DoCancel()
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    {
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    __VTPRINTENTER( "CVtUiDTMFBuffer.DoCancel" )
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    iTimer.Cancel();
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    __VTPRINTEXIT( "CVtUiDTMFBuffer.DoCancel" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiDTMFBuffer::RunL
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// ---------------------------------------------------------------------------
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//
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void CVtUiDTMFBuffer::RunL()
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    {
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    __VTPRINTENTER( "CVtUiDTMFBuffer.RunL" )
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    TimerExpired( iStatus.Int() );
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    __VTPRINTEXIT( "CVtUiDTMFBuffer.RunL" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiDTMFBuffer::CVtUiDTMFBuffer
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// ---------------------------------------------------------------------------
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//
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CVtUiDTMFBuffer::CVtUiDTMFBuffer( const CCoeEnv& aCoeEnv ) :
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    CActive( EPriorityStandard ), iCoeEnv( aCoeEnv )
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    {
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    __VTPRINTENTER( "CVtUiDTMFBuffer.ctor" )
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    CActiveScheduler::Add( this );
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    __VTPRINTEXIT( "CVtUiDTMFBuffer.ctor" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiDTMFBuffer::ConstructL
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// ---------------------------------------------------------------------------
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//
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void CVtUiDTMFBuffer::ConstructL()
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    {
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    __VTPRINTENTER( "CVtUiDTMFBuffer.ConstructL" )
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    User::LeaveIfError( iTimer.CreateLocal() );
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    __VTPRINTEXIT( "CVtUiDTMFBuffer.ConstructL" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiDTMFBuffer::StartTimer
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// ---------------------------------------------------------------------------
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//
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void CVtUiDTMFBuffer::StartTimer()
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    {
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    __VTPRINTENTER( "CVtUiDTMFBuffer.StartTimer" )
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    Cancel();
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    SetActive();
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    iTimer.After( iStatus, KBufferResetInterval );
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    __VTPRINTEXIT( "CVtUiDTMFBuffer.StartTimer" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiDTMFBuffer::TimerExpired
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// ---------------------------------------------------------------------------
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//
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void CVtUiDTMFBuffer::TimerExpired( TInt aError )
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    {
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    __VTPRINTENTER( "CVtUiDTMFBuffer.TimerExpired" )
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    if ( aError != KErrCancel )
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        {
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        ResetBuffer();
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        }
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    __VTPRINTEXIT( "CVtUiDTMFBuffer.TimerExpired" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiDTMFBuffer::ResetBuffer
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// ---------------------------------------------------------------------------
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//
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void CVtUiDTMFBuffer::ResetBuffer()
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    {
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    __VTPRINTENTER( "CVtUiDTMFBuffer.ResetBuffer" )
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    iBuffer.Zero();
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    __VTPRINTEXIT( "CVtUiDTMFBuffer.ResetBuffer" )
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    }