/*

* Copyright (c) 2002 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: 

*       Image manipulation utilities needed in BCardEngine.    

*

*/

// INCLUDE FILES

#include "CBCardImageUtil.h"

#include <imageconversion.h>

// Unnamed namespace for local definitions

namespace {

// LOCAL CONSTANTS AND MACROS

_LIT8(KJpegMimeType, "image/jpeg");

NONSHARABLE_CLASS(CBitmapToDescConverter) : public CActive

    {

    typedef void (*ConversionCallBack)(TAny* aParam, TInt aError);

    public:

        CBitmapToDescConverter(ConversionCallBack aCallBack, TAny* aParam);

        ~CBitmapToDescConverter();

        void ConvertL(CFbsBitmap& aBitmap, HBufC8*& aTargetBlob);

    private: // From CActive

	    void DoCancel();

	    void RunL();

        TInt RunError(TInt aError);

    private:

        ConversionCallBack iCallBack;

        TAny* iParam;

        CImageEncoder* iEncoder;

    };

CBitmapToDescConverter::CBitmapToDescConverter

        (ConversionCallBack aCallBack, TAny* aParam) :

    CActive(CActive::EPriorityStandard),

    iCallBack(aCallBack),

    iParam(aParam)

    {

    CActiveScheduler::Add(this);

    }

CBitmapToDescConverter::~CBitmapToDescConverter()

    {

    Cancel();

    delete iEncoder;

    }

void CBitmapToDescConverter::ConvertL(CFbsBitmap& aBitmap, HBufC8*& aTargetBlob)

    {

    Cancel();

    delete iEncoder;

    iEncoder = NULL;

    iEncoder = CImageEncoder::DataNewL(aTargetBlob, KJpegMimeType);

    iEncoder->Convert(&iStatus, aBitmap);

    SetActive();

    }

void CBitmapToDescConverter::DoCancel()

    {

    iEncoder->Cancel();

    }

void CBitmapToDescConverter::RunL()

    {

    TInt status = iStatus.Int();

    iCallBack(iParam, status);

    }

TInt CBitmapToDescConverter::RunError(TInt aError)

    {

    iCallBack(iParam, aError);

    return KErrNone;

    }

} // namespace

// ==================== MEMBER FUNCTIONS ====================

CBCardImageUtil* CBCardImageUtil::NewL()

    {

    CBCardImageUtil* self = new(ELeave) CBCardImageUtil;

    return self;

    }

CBCardImageUtil::~CBCardImageUtil()

    {

    }

HBufC8* CBCardImageUtil::BitmapToDescL(CFbsBitmap& aBitmap)

    {

    HBufC8* bitmapBlob = NULL;

    CleanupStack::PushL(bitmapBlob);

    CBitmapToDescConverter* converter = new(ELeave) CBitmapToDescConverter

        (CBCardImageUtil::ConversionDone, this);

    CleanupStack::PushL(converter);

    converter->ConvertL(aBitmap, bitmapBlob);

    if(iWait.IsStarted())

        {

        iWait.AsyncStop();

        }

    iWait.Start();

    User::LeaveIfError(iError);

    CleanupStack::PopAndDestroy(converter);

    CleanupStack::Pop(); // bitmapBlob

    return bitmapBlob;

    }

void CBCardImageUtil::ConversionDone(TAny* aThis, TInt aError)

    {

    static_cast<CBCardImageUtil*>(aThis)->ConversionDone(aError);

    }

void CBCardImageUtil::ConversionDone(TInt aError)

    {

    iError = aError;

    iWait.AsyncStop();

    iRunning = EFalse;

    }

//  End of File