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: #include "LogChangeDefinition.h"
sl@0: 
sl@0: // User includes
sl@0: #include "logclipanic.h"
sl@0: 
sl@0: 
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: // -----> CLogChangeDefinition (source)
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: 
sl@0: CLogChangeDefinition::CLogChangeDefinition(TInt aGranularity)
sl@0: :	iChanges(aGranularity)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: EXPORT_C CLogChangeDefinition::~CLogChangeDefinition()
sl@0: 	{
sl@0: 	iChanges.Close();
sl@0: 	}
sl@0: 
sl@0: void CLogChangeDefinition::ConstructL(const CLogChangeDefinition& aCopy)
sl@0: 	{
sl@0: 	const TInt count = aCopy.Count();
sl@0: 	for(TInt i=0; i<count; i++)
sl@0: 		{
sl@0: 		const TLogShdChangeDetails& item = aCopy.iChanges[i];
sl@0: 		User::LeaveIfError(iChanges.Append(item));
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: EXPORT_C CLogChangeDefinition* CLogChangeDefinition::NewL(TInt aGranularity)
sl@0: 	{
sl@0: 	CLogChangeDefinition* self = new(ELeave) CLogChangeDefinition(aGranularity);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C CLogChangeDefinition* CLogChangeDefinition::NewL(const CLogChangeDefinition& aCopy)
sl@0: 	{
sl@0: 	const TInt count = Max(1, aCopy.Count());
sl@0: 	CLogChangeDefinition* self = new(ELeave) CLogChangeDefinition(count);
sl@0: 	CleanupStack::PushL(self);
sl@0: 	self->ConstructL(aCopy);
sl@0: 	CleanupStack::Pop(self);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C CLogChangeDefinition* CLogChangeDefinition::NewL(RReadStream& aStream)
sl@0: 	{
sl@0: 	CLogChangeDefinition* self = new(ELeave) CLogChangeDefinition(KLogChangeDefinitionDefaultGranularity);
sl@0: 	CleanupStack::PushL(self);
sl@0: 	aStream >> *self;
sl@0: 	CleanupStack::Pop(self);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: 
sl@0: EXPORT_C TInt CLogChangeDefinition::Count() const
sl@0: 	{
sl@0: 	return iChanges.Count();
sl@0: 	}
sl@0: 
sl@0: EXPORT_C TLogDatabaseChangeType CLogChangeDefinition::At(TInt aIndex) const
sl@0: 	{
sl@0: 	const TLogShdChangeDetails& entry = iChanges[aIndex];
sl@0: 	return entry.iType;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C TLogDatabaseChangeType CLogChangeDefinition::At(TInt aIndex, TLogId& aId) const
sl@0: 	{
sl@0: 	const TLogShdChangeDetails& entry = iChanges[aIndex];
sl@0: 	aId = entry.iId;
sl@0: 	return entry.iType;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C TLogDatabaseChangeType CLogChangeDefinition::At(TInt aIndex, TLogId& aId, TInt& aViewIndex) const
sl@0: 	{
sl@0: 	const TLogShdChangeDetails& entry = iChanges[aIndex];
sl@0: 	aId = entry.iId;
sl@0: 	aViewIndex = entry.iViewIndex;
sl@0: 	return entry.iType;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C TInt CLogChangeDefinition::Find(TLogId aId) const
sl@0: 	{
sl@0: 	// Linear search
sl@0: 	const TLogShdChangeDetails entryToFind(aId);
sl@0: 	TIdentityRelation<TLogShdChangeDetails> relation(CompareEntryIds);
sl@0: 	const TInt position = iChanges.Find(entryToFind, relation);
sl@0: 	return position;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C TInt CLogChangeDefinition::Find(TLogId aId, TLogDatabaseChangeType aType) const
sl@0: 	{
sl@0: 	// First try and find any log id regardless of change type
sl@0: 	TInt position = Find(aId);
sl@0: 	if	(position >= 0)
sl@0: 		{
sl@0: 		const TInt count = iChanges.Count();
sl@0: 
sl@0: 		// Keep iterating through the changes until we 
sl@0: 		//
sl@0: 		// a) Reach the end of the changes OR
sl@0: 		// b) Reach a change corresponding to a different log id OR
sl@0: 		// c) Find the change we're interested in
sl@0: 		TInt i = position;
sl@0: 		position = KErrNotFound;
sl@0: 		//
sl@0: 		for(; i<count; i++)
sl@0: 			{
sl@0: 			const TLogShdChangeDetails& entry = iChanges[i];
sl@0: 			if	(entry.iId == aId)
sl@0: 				{
sl@0: 				// Now check the change type
sl@0: 				if	(entry.iType == aType)
sl@0: 					{
sl@0: 					// (c)
sl@0: 					position = i;
sl@0: 					break;
sl@0: 					}
sl@0: 				}
sl@0: 			else
sl@0: 				{
sl@0: 				// (b)
sl@0: 				break;
sl@0: 				}
sl@0: 			}
sl@0: 		// (a) is implicit
sl@0: 		}
sl@0: 	return position;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C TInt CLogChangeDefinition::FindByViewIndex(TInt aViewIndex) const
sl@0: 	{
sl@0: 	// Cannot use binary search
sl@0: 	const TLogShdChangeDetails entryToFind(KLogNullId, ELogChangeTypeUndefined, aViewIndex);
sl@0: 	TIdentityRelation<TLogShdChangeDetails> relation(CompareViewIndicies);
sl@0: 	const TInt position = iChanges.Find(entryToFind, relation);
sl@0: 	return position;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void CLogChangeDefinition::AddL(TLogId aId, TLogDatabaseChangeType aType, TInt aViewIndex)
sl@0: 	{
sl@0: 	switch(aType)
sl@0: 		{
sl@0: 	case ELogChangeTypeEventChanged:
sl@0: 	case ELogChangeTypeEventChangedHidden:
sl@0: 	case ELogChangeTypeEventAdded:
sl@0: 	case ELogChangeTypeEventDeleted:
sl@0: 	case ELogChangeTypeLogCleared:
sl@0: 		AddToContainerL(aId, aType, aViewIndex);
sl@0: 		break;
sl@0: 	//
sl@0: 	default:
sl@0: 	case ELogChangeTypeUndefined:
sl@0: 		__ASSERT_ALWAYS(0, Panic(ELogUndefinedChangeType));
sl@0: 		break;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void CLogChangeDefinition::Reset()
sl@0: 	{
sl@0: 	iChanges.Reset();
sl@0: 	iChanges.GranularCompress();
sl@0: 	}
sl@0: 
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: 
sl@0: EXPORT_C void CLogChangeDefinition::InternalizeL(RReadStream& aStream)
sl@0: 	{
sl@0: 	TLogShdChangeDetails entry;
sl@0: 	//
sl@0: 	TCardinality count;
sl@0: 	aStream >> count;
sl@0: 	//
sl@0: 	for(TInt i=0; i<count; i++)
sl@0: 		{
sl@0: 		entry.iId = static_cast<TLogId>(aStream.ReadInt32L());
sl@0: 		entry.iType = static_cast<TLogDatabaseChangeType>(aStream.ReadUint8L());
sl@0: 		entry.iViewIndex = static_cast<TInt>(aStream.ReadInt32L());
sl@0: 		//
sl@0: 		User::LeaveIfError(iChanges.Append(entry));
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void CLogChangeDefinition::ExternalizeL(RWriteStream& aStream) const
sl@0: 	{
sl@0: 	TCardinality count = Count();
sl@0: 	aStream << count;
sl@0: 	//
sl@0: 	for(TInt i=0; i<count; i++)
sl@0: 		{
sl@0: 		const TLogShdChangeDetails& entry = iChanges[i];
sl@0: 		//
sl@0: 		aStream.WriteInt32L(entry.iId);
sl@0: 		aStream.WriteUint8L(entry.iType);
sl@0: 		aStream.WriteInt32L(entry.iViewIndex);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: 
sl@0: TBool CLogChangeDefinition::CompareEntryIds(const TLogShdChangeDetails& aLeft, const TLogShdChangeDetails& aRight)
sl@0: 	{
sl@0: 	return (aLeft.iId == aRight.iId);
sl@0: 	}
sl@0: 
sl@0: TBool CLogChangeDefinition::CompareViewIndicies(const TLogShdChangeDetails& aLeft, const TLogShdChangeDetails& aRight)
sl@0: 	{
sl@0: 	return (aLeft.iViewIndex == aRight.iViewIndex);
sl@0: 	}
sl@0: 
sl@0: void CLogChangeDefinition::AddToContainerL(TLogId aId, TLogDatabaseChangeType aType, TInt aViewIndex)
sl@0: 	{
sl@0: 	const TLogShdChangeDetails entry(aId, aType, aViewIndex);
sl@0: 	const TInt error = iChanges.Append(entry);
sl@0: 	User::LeaveIfError(error);
sl@0: 	}
sl@0: 
sl@0: