--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imageeditorengine/inc/CExifParser.h	Fri Jan 29 13:53:17 2010 +0200
@@ -0,0 +1,149 @@
+/*
+* Copyright (c) 2010 Ixonos Plc.
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the "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:
+* Ixonos Plc
+*
+* Description:  
+*
+*/
+
+
+#ifndef __CEXIFPARSER_H__
+#define __CEXIFPARSER_H__
+
+#include <e32base.h>
+
+
+
+class TExifEntry
+	{
+	public:
+		inline TExifEntry()
+			{
+			iIfd = 0;
+			iTag = 0;
+			iType = 0;
+			iCount = 0;
+			iData = NULL;
+			}
+
+		inline ~TExifEntry()
+			{
+			delete iData;
+			}
+	public:
+		TUint8 iIfd;
+		TUint16 iTag;
+		TUint8 iType;
+		TUint32 iCount;
+		TUint8* iData;
+	};
+
+
+class TParseStack
+	{
+	public:
+		inline TParseStack( TUint32 aPosition, TUint8 aIfd )
+			: iPosition( aPosition )
+			, iIfd( aIfd )
+			{
+			}
+	public:
+		TUint32 iPosition;
+		TUint8 iIfd;
+	};
+
+
+
+class CExifParser
+	: public CBase
+	{
+	public:
+		enum EIfd
+			{
+			EIfd0 = 0,
+			EIfd1,
+			ESubIfd,
+			EInteroperability
+			};
+
+	public:
+		static CExifParser* NewL();
+		static CExifParser* NewLC();
+		~CExifParser();
+
+	private:
+		CExifParser();
+		void ConstructL();
+
+	public:
+		void ParseL( const TPtrC8& aData );
+		TBool TagExist( TInt aIfd, TUint16 aTag );
+		void DeleteTag( TInt aIfd, TUint16 aTag );
+		TUint32 TagValue( TInt aIfd, TUint16 aTag );
+		
+		void AddTagL( TInt aIfd, TUint16 aTag, TInt32 aValue );
+		void AddTagL( TInt aIfd, TUint16 aTag, TUint32 aValue );
+		void AddTagL( TInt aIfd, TUint16 aTag, TUint16 aValue );
+		void AddTagL( TInt aIfd, TUint16 aTag, TUint8 aValue );
+		void AddTagL( TInt aIfd, TUint16 aTag, TPtrC8 aData );
+		void AddTagL( TInt aIfd, TUint16 aTag, const TUint8* aValue );
+		void AddTagL( TInt aIfd, TUint16 aTag, TUint32 aNominator, TUint32 aDenominator );
+
+		TPtrC8 ThumbData();
+		TPtr8 SaveL( const TPtrC8& aThumbData );
+
+
+	private: // new methods
+		TUint32 Get8();
+		TUint32 Get16();
+		TUint32 Get32();
+		TUint32 Get8( const TUint8* aData );
+		TUint32 Get16( const TUint8* aData );
+		TUint32 Get32( const TUint8* aData );
+		void ParseIfdL( TUint8 aIfd );
+		TInt FindTag( TInt aIfd, TUint16 aTag );
+		void StoreEntry( TInt aIndex );
+
+		void Put8( TUint8 aData );
+		void Put16( TUint16 aData );
+		void Put32( TUint32 aData );
+
+		TUint32 StoreData( TUint8* aData, TInt aCount );
+
+		TInt IfdCount( TInt aType );
+
+		void AddTagL( TInt aIfd, TUint16 aTag, TInt aType, TUint8* aData, TInt aDataLen );
+
+
+
+	private:
+		TPtrC8	iData;
+		TInt	iPosition;
+		TBool	iIntelByteOrder;
+
+		RArray< TParseStack >iParseStack;
+		RPointerArray< TExifEntry >iEntry;
+
+		TUint8*	iSaveBuf;				// used to store tags
+		TInt	iSaveBufPos;
+
+		TUint8*	iSaveDataBuf;			// used to store tag data
+		TInt	iSaveDataBufPos;
+
+		RArray< TUint32 >iDataEntry;	// list of tag data pointers
+
+		TUint8*	iThumbData;
+		TInt	iThumbLen;
+	};
+
+#endif