// Copyright (c) 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:

// uidtype.h

//

/** 

* @file uidtype.h

*

* @internalComponent

* @released

*/

#ifndef __UIDTYPE_H__

#define __UIDTYPE_H__

#include <iostream>

#include "symbiantypes.h"

namespace rscparser

{

/**

@internalComponent

@released

Defines a Null UID value.

@see TUid

*/

const TInt KNullUidValue=0;

/**

@publishedAll

@released

Defines the number of TUids that form a TUidType.

@see TUid

@see TUidType

*/

const TInt KMaxCheckedUid=3;

/**

@publishedAll

@released

A globally unique 32-bit number.

*/

class TUid

	{

public:

	TBool operator==(const TUid& aUid) const;

	TBool operator!=(const TUid& aUid) const;

	static inline TUid Uid(TInt aUid);

	static inline TUid Null();

	TUint32 GetUid();

public:

	/**

	The 32-bit integer UID value.

	*/

	TUint32 iUid;

	};

/**

@publishedAll

@released

Defines a null UID

*/

#define NullUid TUid::Null()

/**

Constructs a Null-valued TUid object.

@return The constructed Null-valued TUid object.

*/

inline TUid TUid::Null()

	{TUid uid={KNullUidValue};return uid;}

/**

Constructs the TUid object from a 32-bit integer.

@param aUid The 32-bit integer value from which the TUid object is to be

            constructed.

@return The constructed TUid object.

*/

inline TUid TUid::Uid(TInt aUid)

	{TUid uid={aUid};return uid;}

/**

@publishedAll

@released

Encapsulates a set of three unique identifiers (UIDs) which, in combination, 

identify a system object such as a GUI application or a DLL. The three

component UIDs are referred to as UID1, UID2 and UID3.

An object of this type is referred to as a compound identifier or a UID type.

*/

class TUidType

	{

public:

	 TUidType();

	 TUidType(TUid aUid1,TUid aUid2,TUid aUid3);

	 TBool operator==(const TUidType& aUidType) const;

	 const TUid& operator[](TInt anIndex) const;

private:

	TUid iUid[KMaxCheckedUid];

	};

}

#endif