--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imaging/imagingplugins/codecs/JPEGCodec/Exif/ExifThumbnailGenerator.h	Wed Aug 25 12:29:52 2010 +0300
@@ -0,0 +1,105 @@
+// 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:
+//
+
+#ifndef EXIFTHUMBNAILGENERATOR_H
+#define EXIFTHUMBNAILGENERATOR_H
+
+
+#include <e32base.h>
+#include <f32file.h>
+#include <icl/imagecodec.h>
+#include <imageconversion.h>
+#include "JpegTypes.h"
+
+class CFbsBitmap;
+class CBitmapScaler;
+class CImageWriteCodec;
+class MExifSource;
+
+//class CFrameImageData;
+class CScaledJpegGenerator : public CActive
+	{
+public:
+	enum TImageToGenerate
+		{
+		EMainImage,
+		EThumbnail
+		};
+
+
+public:
+	static CScaledJpegGenerator* NewL(TRequestStatus* aNotifier, const MExifSource* aSource, 
+		TBool aMaintainAspectRatio = ETrue, CImageDecoder::TOptions aDecoderOptions = CImageDecoder::EOptionNone);
+	~CScaledJpegGenerator();
+	
+	void StartL(TSize aSize, TImageToGenerate aImageType);
+	HBufC8* GetJpegDataL();
+	HBufC8* JpegDataBufferL(const TUint aIndex);
+	void GetScaledImageSize(TSize &aSize);
+private:
+	CScaledJpegGenerator(TRequestStatus* aNotifier, TBool aMaintainAspectRatio, 
+		CImageDecoder::TOptions aDecoderOptions);
+	void ConstructL(const MExifSource* aSource);
+	
+	void RunL();
+	void DoCancel();
+
+	void GenerationCompleteL();	
+	TInt RunError(TInt aError);
+
+	void DoScaleBitmapL();
+	void DoConvertL();
+
+	void CreateJpegCodecL();
+	void CleanTempData();
+	void CleanResultData();
+	void CleanData();
+	
+private:
+	const MExifSource* iSource;
+	TRequestStatus* iNotifier;
+	TSize iSize;
+	TImageToGenerate iImageType;
+	
+	CFbsBitmap* iBitmap;
+	CImageDecoder* iImageDecoder;
+	CBitmapScaler* iBitmapScaler;
+	CImageWriteCodec* iJpegCodec;
+	TFrameState iFrameState;
+
+	RPointerArray<HBufC8> iJPegImage;
+	HBufC8* iJpegChunck;
+	TBufPtr8 iJpegChunckPtr;
+	CImageDecoder::TOptions iDecoderOptions;
+	enum TThumbnailGeneratorState
+		{
+		EEmpty,
+		EDecode,
+		EScale,
+		EConvert,
+		EFinished
+		};
+	TThumbnailGeneratorState iState;
+
+	RPointerArray<HBufC8> iComment;
+	TQTable* iLumaTable;
+	TQTable* iChromaTable;
+
+	TBool iMaintainAspectRatio;
+	};
+
+
+
+#endif 	// EXIFTHUMBNAILGENERATOR_H