--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmplugins/imagingplugins/codecs/JPEGCodec/Exif/exiftransform.cpp	Wed Sep 01 12:38:50 2010 +0100
@@ -0,0 +1,134 @@
+// Copyright (c) 2004-2009 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:
+//
+
+#include <f32file.h>
+#include "exiftransform.h"
+
+#include "ImageUtils.h"
+#include "ExifTagHelper.h"
+#include "ExifGeneralConsts.h"
+#include "ifdgeneral.h"
+#include "ExifTagDescriptions.h"
+	
+/*static*/
+CExifTransform* CExifTransform::NewL(const TUint8* aData, const TUint aApp1Size)
+	{
+	CExifTransform* self = new (ELeave) CExifTransform();
+	CleanupStack::PushL(self);
+	self->ConstructL(aData, aApp1Size);
+	CleanupStack::Pop(self);
+	return self;	
+	}
+
+
+CExifTransform::CExifTransform()
+	{
+	}
+
+	
+void CExifTransform::ConstructL(const TUint8* aData, const TUint aApp1Size)
+	{
+	if(aData)
+		{
+		TUint8* dataPtr = const_cast<TUint8*>(aData);
+		InitializeIfdsL(dataPtr, aApp1Size);
+		}
+	else
+		{
+	    InitializeIfdsL(ETrue, EFalse);
+		}
+	}
+
+
+CExifTransform::~CExifTransform()
+	{
+	}	
+
+void CExifTransform::SetIfd1L()
+	{
+	TUint offsetToFirstIfd = 0;
+	
+	CIfdGeneral* ifd0 = GetIfd(EZeroth);
+	ASSERT(ifd0);
+
+	User::LeaveIfError(ifd0->GetOffsetToFirstIfd(offsetToFirstIfd));
+	
+	if (CheckExifOffset(offsetToFirstIfd) != KErrNone)
+		{
+		offsetToFirstIfd = 0;
+		}
+
+	CIfd1* ifd1 = CIfd1::NewLC(offsetToFirstIfd, offsetToFirstIfd ? iBase : NULL, iIntel, iExifDataLength);
+	iIfds.AppendL(ifd1);
+	CleanupStack::Pop(ifd1);
+	
+	if (offsetToFirstIfd)
+		{
+		SetThumbnailDataBaseL(ifd1, ETrue);
+		}	
+	}
+
+TInt CExifTransform::CreateExifChunk(HBufC8*& aExifChunk)
+	{
+	TRAPD(err, CreateExifHeaderL(aExifChunk));
+	return err;
+	}
+	
+//	Creates the Exif Header proper, i.e. by pulling together all the appropriate data held in the IFD's.
+void CExifTransform::CreateExifHeaderL(HBufC8*& aBuffer)
+	{
+	if(aBuffer != NULL)
+		{
+		delete aBuffer;
+		aBuffer=NULL;
+		}
+	
+	if(!GetJpegThumbnailData())
+		{
+		// we have to remove all the thumbnail data	
+		RemoveThumbnailData();
+		}
+	
+	aBuffer = CreateExifHeaderBaseL();
+	}
+	
+void CExifTransform::CheckUpdateMandatoryTagsL()
+	{
+	CIfdGeneral* ifd = NULL;
+	for (TInt i = 0; i < iIfds.Count(); i++)
+		{
+		ifd = iIfds[i];
+		ifd->CheckMandatoryEntriesL();
+		}
+	}
+
+TBool CExifTransform::CheckImageSizeTags()
+	{
+	CExifIfd* exifIfd = static_cast<CExifIfd*> (GetIfd(EExifSub));
+	if (exifIfd)
+		{
+		return exifIfd->CheckImageSizeTags();
+		}
+	return EFalse;
+	}
+
+void CExifTransform::UpdateImageSizeTagsL(const TSize& aSize)
+	{
+	CExifIfd* exifIfd = static_cast<CExifIfd*> (GetIfd(EExifSub));
+	if (exifIfd)
+		{
+		exifIfd->UpdateImageSizeTagsL(aSize);
+		}
+	}