/*

* Copyright (c) 2007-2008 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:  Declarition of CAcpImageHandler

*

*/

#ifndef ACPIMAGEHANDLER_H

#define ACPIMAGEHANDLER_H

#include <e32std.h>

#include <e32base.h>

#include <f32file.h>

#include <imageconversion.h>

class CFbsBitmap;

class CBitmapRotator;

class MImageHandlerObserver;

/**

 *  CAcpImageHandler class

 *  Declarition of CAcpImageHandler.

 *

 *  @lib accountcreationplugin.lib

 *  @since S60 v3.2

 */

class CAcpImageHandler : public CActive

    {

private:

    /**

     * States of execution.

     */

    enum TState 

        {

        EIdle = 0,

        EDecoding,

        EScaling

        };

public:

    /**

     * Two-phased constructor.

     *

     * @param aController for observer.

     */

    static CAcpImageHandler* NewL( MImageHandlerObserver& aController );

    /**

     * Destructor.

     */

    virtual ~CAcpImageHandler();

    /**

     * Decodes an image to bitmap.

     *

     * @since S60 v3.2

     * @param aFileName A file to be decoded to the bitmap.

     */

    void StartToDecodeL( const TDesC8& aSourceData,

        const TDesC8& aContentType );

    /**

     * Get bitmap.

     *

     * @since S60 v3.2

     * @return Reference to bitmap already converted.

     */

    CFbsBitmap* GetBitmap();

    /**

     * Get mask.

     *

     * @since S60 v3.2

     * @return Reference to the mask from bitmap conversion.

     */

    CFbsBitmap* GetMask();

protected: 

// from base class CActive

    /**

     * From CActive.

     * Cancels an outstanding request.

     * 

     * @since S60 v3.2

     */

    void DoCancel();

    /**

     * From CActive.

     * Handles request completion event.

     * 

     * @since S60 v3.2

     */

    void RunL();

private: 

    CAcpImageHandler( MImageHandlerObserver& aController ); 

    void ConstructL();

private:  

    /**

     * Observer reference.

     */

	MImageHandlerObserver& iController;

    /**

     * Handle for file server.

     */

    RFs iFs;

    /**

     * Handle for image decoder.

     * Own. 

     */

    CImageDecoder* iImageDecoder;

    /**

     * State of execution (decoding or scaling).

     */

    TState iState;

    /**

     * Converted bitmap.

     * Own. 

     */

    CFbsBitmap* iBitmap;

    /**

     * Converted mask.

     * Own.

     */

    CFbsBitmap* iMask;

    // For unit testing.

#ifdef _DEBUG

    friend class T_CAcpImageHandler;

#endif

    };

#endif // ACPIMAGEHANDLER_H

// End of file.