// Copyright (c) 2002-2009 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:

//

#ifndef __IMAGECODEC_DEF_H__

#define __IMAGECODEC_DEF_H__

#include <e32cmn.h>

/**

@internalComponent

Class used to shadow the descriptor supplying the image data.

It maintains a flag to determine whether the descriptor contains a

filename or the image data itself.

This class is not intended for public use.

*/

class TImageParameterData

	{

public:

	/**

	Flag used to determine what the descriptor contains.

	*/

	enum TImageParameterDataFlag

		{

		/** Field not set.

		*/

		ENull		= 0x00000000,

		/** Descriptor is a filename.

		*/

		EFilename	= 0x00000001,

		/** Descriptor contains data.

		*/

		EData		= 0x00000002

		};

	TImageParameterData();

	void SetFilenamePtr(const TDesC* aSourceFilenamePtr);

	void SetDataPtr(const TDesC8* aSourceDataPtr);

	IMPORT_C TBool IsFilename() const;

	IMPORT_C const TDesC* SourceFilenamePtr() const;

	IMPORT_C const TDesC8* SourceDataPtr() const;

	TBool IsDataTypeDefined() const;

private:

	TImageParameterDataFlag iImageParameterDataFlag;

	union

		{

		const TDesC* iSourceFilenamePtr;

		const TDesC8* iSourceDataPtr;

		};

	};

#endif // __IMAGECODEC_H__