/*

* Copyright (c) 2010 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:  Ctelbubbleimagescaler implementation

*

*/

#include "telbubbleimagescaler.h"

#include "BMBubbleDebug.h"

#include <bitmaptransforms.h>

// ---------------------------------------------------------------------------

// Constructor

// ---------------------------------------------------------------------------

//

CTelBubbleImageScaler::CTelBubbleImageScaler(

        MTelBubbleImageScalerObserver& aObserver) :

    CActive(CActive::EPriorityStandard), iObserver(aObserver), iState(EScalingIdle),

    iScaler( NULL )

    {

    }

// ---------------------------------------------------------------------------

// NewLC

// ---------------------------------------------------------------------------

//

CTelBubbleImageScaler* CTelBubbleImageScaler::NewLC(

        MTelBubbleImageScalerObserver& aObserver)

    {

    CTelBubbleImageScaler* self = new (ELeave) CTelBubbleImageScaler(

            aObserver);

    CleanupStack::PushL( self );

    self->ConstructL();

    return self;

    }

// ---------------------------------------------------------------------------

// NewL

// ---------------------------------------------------------------------------

//

CTelBubbleImageScaler* CTelBubbleImageScaler::NewL(

        MTelBubbleImageScalerObserver& aObserver)

    {

    CTelBubbleImageScaler* self = CTelBubbleImageScaler::NewLC(aObserver);

    CleanupStack::Pop( self ); 

    return self;

    }

// ---------------------------------------------------------------------------

// CTelBubbleImageScaler::ConstructL

// ---------------------------------------------------------------------------

//

void CTelBubbleImageScaler::ConstructL()

    {

    CActiveScheduler::Add( this );

    }

// ---------------------------------------------------------------------------

// Destructor

// ---------------------------------------------------------------------------

//

CTelBubbleImageScaler::~CTelBubbleImageScaler()

    {

    if ( iScaler )

        {

        iScaler->Cancel(); // Cancel any request, if outstanding

        }

    delete iScaler;

    iState = EScalingIdle;

    }

// ---------------------------------------------------------------------------

// CTelBubbleImageScaler::StartScaleL

// ---------------------------------------------------------------------------

//

void CTelBubbleImageScaler::StartScaleL(CFbsBitmap* aSrc, CFbsBitmap* aTarget)

    {

    BM_TRACE_( "CTelBubbleImageScaler::StartScaleL()" );

    if ( !iScaler )

        {

        iScaler = CBitmapScaler::NewL();

        }

    iScaledBitmap = aTarget;

    iScaler->SetQualityAlgorithm( CBitmapScaler::EMaximumQuality );

    iScaler->Scale( &iStatus, *aSrc, *aTarget, EFalse );

    iState = EScalingStarted;

    SetActive();

    }

// ---------------------------------------------------------------------------

// CTelBubbleImageScaler::DoCancel

// ---------------------------------------------------------------------------

//

void CTelBubbleImageScaler::DoCancel()

    {

    BM_TRACE_( "CTelBubbleImageScaler::DoCancel()" );

    if ( iScaler )

        {

        iScaler->Cancel();

        }

    iObserver.ImageScalingComplete( KErrCancel, iScaledBitmap );

    iState = EScalingDone;

    iScaledBitmap = NULL;

    }

// ---------------------------------------------------------------------------

// CTelBubbleImageScaler::RunL

// ---------------------------------------------------------------------------

//

void CTelBubbleImageScaler::RunL()

    {

    BM_TRACE_( "CTelBubbleImageScaler::RunL()" );

    iState = EScalingDone;

    TInt status = iStatus.Int();

    iObserver.ImageScalingComplete( status, iScaledBitmap );

    iScaledBitmap = NULL;

    }

// ---------------------------------------------------------------------------

// CTelBubbleImageScaler::RunError

// ---------------------------------------------------------------------------

//

TInt CTelBubbleImageScaler::RunError( TInt aError )

    {

    BM_TRACE_( "CTelBubbleImageScaler::RunError()" );

    iState = EScalingDone;

    iObserver.ImageScalingComplete( aError, iScaledBitmap );

    iScaledBitmap = NULL;

    return KErrNone;

    }

// ---------------------------------------------------------------------------

// CTelBubbleImageScaler::SetState

// ---------------------------------------------------------------------------

//

void CTelBubbleImageScaler::SetState(TState aState)

    {

    BM_TRACE_1( "CTelBubbleImageScaler::SetState(): %d", aState );

    iState = aState;

    }

// ---------------------------------------------------------------------------

// CTelBubbleImageScaler::GetState

// ---------------------------------------------------------------------------

//

TInt CTelBubbleImageScaler::GetState()

    {

    BM_TRACE_1( "CTelBubbleImageScaler::GetState(): %d", iState );

    return iState;

    }