/*

* 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:  Image decoder

*

*/

#ifndef _XNIMAGEDECODER_H

#define _XNIMAGEDECODER_H

// System includes

#include <e32base.h>

// User includes

class CXnBitmapAdapter;

class CFbsBitmap;

class CImageDecoder;

class RFs;

// Forward declarations

/**

 * Image decoder

 * 

 * @ingroup group_xnbitmapfactory

 * @lib xn3bitmapfactory.lib

 * @since S60 5.2

 */

NONSHARABLE_CLASS( CXnImageDecoder ) : public CActive

    {

public:    

    // Constructors and destructor

    /**

     * Two-phased constructor.

     */

    static CXnImageDecoder* NewL( CXnBitmapAdapter& aAdapter, RFs& aFs );        

    /**

     * Two-phased constructor. Leaving on stack

     */

    static CXnImageDecoder* NewLC( CXnBitmapAdapter& aAdapter, RFs& aFs );         

    /**

     * Destructor

     */

    ~CXnImageDecoder();

private:

    // private constructors

    /**

     * Leaving constructor

     */

    void ConstructL();

    /**

     * C++ default constructor

     */

    CXnImageDecoder( CXnBitmapAdapter& aAdapter, RFs& aFs );         

private:

    // from CActive

    /**

     * @see CActive

     */

    void RunL();

    /**

     * @see CActive

     */    

    TInt RunError( TInt aError );

    /**

     * @see CActive

     */    

    void DoCancel();

public: 

    // new functions

    /**

     * Starts decode.

     * 

     * @param aFile Image file

     */

    void DecodeL( TFileName& aFilename );

private:

    // new functions

    void Cleanup();

private:

    // data

    /** Bitmapadapter, not owned */

    CXnBitmapAdapter& iAdapter; 

    /** File server session, not owned */

    RFs& iFs;

    /** Image decoder, owned */

    CImageDecoder* iDecoder;

    /** Bitmap, owned during conversion */

    CFbsBitmap* iBitmap;

    /** Mask, owned during conversion */

    CFbsBitmap* iMask;    

    };

#endif // _XNIMAGEDECODER_H

// End of file