/*

* Copyright (c) 2008 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:  Metadata resolver class in the Memory manager component

*

*/

#ifndef C_CMMMIMAGEMETADATARESOLVER_H

#define C_CMMMIMAGEMETADATARESOLVER_H

#include <e32base.h>

#include <f32file.h> // RFs

// Forward declarations

class CExifRead;

class CExifModify;

/**

 *  CCmMmImageMetadataResolver class

 *  Part of Memory manager

 *

 *  @lib cmmemorymanager.lib

 *  @since S60 v3.2

 */

class CCmMmImageMetadataResolver : public CBase

    {

public: // Symbian constructors and C++ destructor

    /**

     * Creates new CCmMmImageMetadataResolver class

     *

     * @since S60 3.2

     * @param aFileSession

     * @return pointer to CCmMmImageMetadataResolver object

     */

    static CCmMmImageMetadataResolver* NewL( RFs& aFileSession );

    /**

     * Creates new CCmMmImageMetadataResolver class and leaves the instance

     * in the cleanup stack

     *

     * @since S60 3.2

     * @param aFileSession

     * @return  pointer to CCmMmImageMetadataResolver object

     */

    static CCmMmImageMetadataResolver* NewLC( RFs& aFileSession );

    /**

     * @since S60 3.2

     *

     * C++ destructor

     */

    virtual ~CCmMmImageMetadataResolver();

public: // New methods

    /**

     * Captures orginal metadata

     * @since S60 3.2

     * @param aOrigFileName, orginal file name

     * @return None

     */

    void CaptureOrginalMetadataL( const TDesC& aOrigFileName );

    /**

     * Captures and resolves image metadata

     * @since S60 3.2

     * @param aShrinkedFileName, shrinked file name

     * @return None

     */

    void ResolveMetadataL( const TDesC& aShrinkedFileName );

private:

    /**

     * Fills orginal exif data to shrinked image

     * @since S60 3.2

     * @param aRead, exif reader

     * @param aModify, exif modifier

     * @return None

     */

    void FillExifL( CExifRead& aRead, CExifModify& aModify );

private: // Constructors

    /**

     * C++ constructor

     *

     * @since S60 3.2

     * @param None

     */

    CCmMmImageMetadataResolver( RFs& aFileSession );

    /**

     * Second-phase constructor

     *

     * @since S60 3.2

     */

    void ConstructL();

private: // data

    /** File session*/

    RFs& iFileSession;

    /** Orginal Metadata ( owned ) */

    HBufC8* iExifOrig;

    };

#endif // C_CMMMIMAGEMETADATARESOLVER_H