/*

* Copyright (c) 2004 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:  Common definitions

*

*/

#ifndef CAECOMMON_H

#define CAECOMMON_H

//  INCLUDES

#include <e32std.h>

// CONSTANTS

enum TCaeExtensionInterfaceIndexes

	{

	KCaeExtProcessImageInterfaceIndex = 0,

	KCaeExtSettingsInterfaceIndex = 1

	};

// Supported extension interfaces

// The order of this array must match to TCaeExtensionInterfaceIndexes.

const TUid KCaeSupportedExtensionInterfaceUids[] = 

	{

		{ KCaeExtProcessImageInterfaceUidValue },

		{ KCaeExtSettingsInterfaceUidValue } ,

		{ NULL } // End mark

	};

// Supported callback interfaces

const TUid KCaeSupportedCallbackInterfaceUids[] = 

	{

		{ KCaeExtEngineInfoCallbackInterfaceUidValue },

		{ NULL } // End mark

	};

// Extension list granularity

const TInt TCaeExtensionInterfaceImplItemGranularity = 10;

// CLASS DECLARATIONS

/**

* Struct for the extension interface implementation array item.

*/

struct TCaeExtensionInterfaceImplItem

	{

    // Priority of the specific implementation

    TInt iInitialPriority;

    // Uid of the specific implementation

	TUid iImplUid;

    // Pointer to the specific implementation

	TAny* iImplPtr;

    // Set to ETrue when image processing is enabled

	TBool iIsActive;

	};

/**

* Struct for the extension interface implementation array item.

*/

struct TCaeExtensionInterfaceImplListItem

	{

	// Uid of the interface 

	TUid iInterfaceUid;

	// List of implementations

	RArray<TCaeExtensionInterfaceImplItem>* iImplementations;

	};

/**

* Struct for the custom interface implementation array item.

*/

struct TCaeCustomInterfaceImplItem

	{

    // Uid of the custom interface that is implemented by the extension 

	TUid iInterfaceUid;

    // Pointer to the implementation

	TAny* iImplPtr;

	};

#endif // CAECOMMON_H