sl@0: // Copyright (c) 2002-2009 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: #ifndef __LOGCHANGEDEFINITION_H__
sl@0: #define __LOGCHANGEDEFINITION_H__
sl@0: 
sl@0: // System includes
sl@0: #include <e32base.h>
sl@0: #include <s32strm.h>
sl@0: #include <logwrap.h>
sl@0: #include <logwraplimits.h>
sl@0: 
sl@0: /**
sl@0: Constants
sl@0: @internalComponent
sl@0: */
sl@0: const TInt KLogChangeDefinitionDefaultGranularity = 10;
sl@0: 
sl@0: /**
sl@0: Enumerations
sl@0: @internalComponent
sl@0: */
sl@0: enum TLogDatabaseChangeType
sl@0: 	{
sl@0: 	ELogChangeTypeUndefined = -1,
sl@0: 	ELogChangeTypeEventAdded = 0,
sl@0: 	ELogChangeTypeEventChanged,
sl@0: 	ELogChangeTypeEventChangedHidden,
sl@0: 	ELogChangeTypeEventDeleted,
sl@0: 	ELogChangeTypeLogCleared
sl@0: 	};
sl@0: 
sl@0: 
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: // -----> CLogChangeDefinition (header)
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: class CLogChangeDefinition : public CBase
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: 	{
sl@0: public: // CONSTRUCT / DESTRUCT
sl@0: 	IMPORT_C static CLogChangeDefinition* NewL(TInt aGranularity = KLogChangeDefinitionDefaultGranularity);
sl@0: 	IMPORT_C static CLogChangeDefinition* NewL(RReadStream& aStream);
sl@0: 	IMPORT_C static CLogChangeDefinition* NewL(const CLogChangeDefinition& aCopy);
sl@0: 	IMPORT_C ~CLogChangeDefinition();
sl@0: 
sl@0: private: // INTERNAL CONSTRUCT
sl@0: 	CLogChangeDefinition(TInt aGranularity);
sl@0: 	void ConstructL(const CLogChangeDefinition& aCopy);
sl@0: 
sl@0: public: // API
sl@0: 
sl@0: 	/**
sl@0: 	 * Return the number of events in the change definition
sl@0: 	 */
sl@0: 	IMPORT_C TInt Count() const;
sl@0: 
sl@0: 	/**
sl@0: 	 * Get a change description
sl@0: 	 */
sl@0: 	IMPORT_C TLogDatabaseChangeType At(TInt aIndex) const;
sl@0: 	IMPORT_C TLogDatabaseChangeType At(TInt aIndex, TLogId& aId) const;
sl@0: 	IMPORT_C TLogDatabaseChangeType At(TInt aIndex, TLogId& aId, TInt& aViewIndex) const;
sl@0: 
sl@0: 	/**
sl@0: 	 * Find the position of a specific event
sl@0: 	 */
sl@0: 	IMPORT_C TInt Find(TLogId aId) const;
sl@0: 	IMPORT_C TInt Find(TLogId aId, TLogDatabaseChangeType aType) const;
sl@0: 	IMPORT_C TInt FindByViewIndex(TInt aViewIndex) const;
sl@0: 
sl@0: 	/**
sl@0: 	 * Add a change definition
sl@0: 	 */
sl@0: 	IMPORT_C void AddL(TLogId aId, TLogDatabaseChangeType aType, TInt aViewIndex);
sl@0: 
sl@0: 	/**
sl@0: 	 * Reset change contents
sl@0: 	 */
sl@0: 	IMPORT_C void Reset();
sl@0: 
sl@0: public: // INTERNALIZE / EXTERNALIZE
sl@0: 	IMPORT_C void InternalizeL(RReadStream& aStream);
sl@0: 	IMPORT_C void ExternalizeL(RWriteStream& aStream) const;
sl@0: 
sl@0: private: // INTERNAL CLASSES
sl@0: 	class TLogShdChangeDetails
sl@0: 		{
sl@0: 	public:
sl@0: 		inline TLogShdChangeDetails() : iId(KLogNullId), iType(ELogChangeTypeUndefined), iViewIndex(KErrNotFound) { }
sl@0: 		inline TLogShdChangeDetails(TLogId aId, TLogDatabaseChangeType aType = ELogChangeTypeUndefined, TInt aViewIndex = KErrNotFound) : iId(aId), iType(aType), iViewIndex(aViewIndex) { }
sl@0: 
sl@0: 	public:
sl@0: 		TLogId iId;
sl@0: 		TLogDatabaseChangeType iType;
sl@0: 		TInt iViewIndex;
sl@0: 		};
sl@0: 
sl@0: private: // INTERNAL METHODS
sl@0: 	static TBool CompareEntryIds(const TLogShdChangeDetails& aLeft, const TLogShdChangeDetails& aRight);
sl@0: 	static TBool CompareViewIndicies(const TLogShdChangeDetails& aLeft, const TLogShdChangeDetails& aRight);
sl@0: 	void AddToContainerL(TLogId aId, TLogDatabaseChangeType aType, TInt aViewIndex);
sl@0: 
sl@0: private: // MEMBER DATA
sl@0: 
sl@0: 	/**
sl@0: 	 * List of changes
sl@0: 	 */
sl@0: 	RArray<TLogShdChangeDetails> iChanges;
sl@0: 	};
sl@0: 
sl@0: 
sl@0: 
sl@0: 
sl@0: #endif