sl@0: // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #if !defined(__DESHEADER_H__)
sl@0: #define __DESHEADER_H__
sl@0: 
sl@0: #include <pcstore/pcstoredef.h>
sl@0: 
sl@0: namespace PCStore
sl@0: {
sl@0: class CStoreWriteStream;
sl@0: class CStoreReadStream;
sl@0: class CDes8;
sl@0: class CDes16;
sl@0: 
sl@0: /**
sl@0: @internalComponent
sl@0: 
sl@0: Compact stream format for positive integer values in the range 0 to 536,870,911 ((2^29)-1). Values 
sl@0: in the range 0-127 are stored in a single byte, 128-16383 in two bytes and other values in 4 bytes.
sl@0: 
sl@0: The class provides conversion to and from TInt, and both externalization and internalization functions. 
sl@0: */
sl@0: class TCardinality
sl@0: 	{
sl@0: public:
sl@0: 	TCardinality(): iCount(0) {};
sl@0: 	TCardinality(TInt aCount);
sl@0: 
sl@0: 	void Externalize(CStoreWriteStream& aStream) const;
sl@0: 	void Internalize(CStoreReadStream& aStream);
sl@0: 	operator TInt() const;
sl@0: 
sl@0: private:
sl@0: 	TUint iCount;
sl@0: 	};
sl@0: 
sl@0: /**
sl@0: @internalComponent
sl@0: 
sl@0: Class for the header information of CDes8 and CDes16.
sl@0: 
sl@0: The header information of CDes8 and CDes16 includes the data width (8 or 16 bits) and length. 
sl@0: This class forms the header information from the given CDes8 or CDes16 data and stores it into 
sl@0: a TCardinality object.  It also provides the member functions to externalize / internalize 
sl@0: itself to / from a stream.
sl@0: */
sl@0: class CDesHeader
sl@0: 	{
sl@0: public:
sl@0: 	CDesHeader() {}
sl@0: 	CDesHeader(const CDes8& aDes8);
sl@0: 	CDesHeader(const CDes16& aDes16);
sl@0: 
sl@0: 	void Externalize(CStoreWriteStream& aStream) const;
sl@0: 	void Internalize(CStoreReadStream& aStream);
sl@0: 	TInt Length() const;
sl@0: 
sl@0: private:
sl@0: 	TCardinality iVal;
sl@0: 	};
sl@0: }
sl@0: #endif // !defined(__DESHEADER_H__)