--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imagehandlingutilities/thumbnailmanager/plugins/audio/inc/thumbnailimagedecoderv3.h	Tue Jan 26 15:18:05 2010 +0200
@@ -0,0 +1,173 @@
+/*
+* Copyright (c) 2006-2007 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:  Image thumbnail decoder.
+ *
+*/
+
+
+#ifndef THUMBNAILIMAGEDECODERV3_H
+#define THUMBNAILIMAGEDECODERV3_H
+
+#include "thumbnailprovider.h"
+
+class CImageDecoder;
+class CFbsBitmap;
+
+// Size of buffer to load from file start to get EXIF thumbnail
+const TInt KJpegLoadBufferSize = 64 * 1024;
+
+
+/**
+ *  Image thumbnail decoder.
+ *
+ *  @since S60 v5.0
+ */
+class CThumbnailImageDecoderv3: public CActive
+    {
+public:
+
+    /**
+     * C++ default constructor
+     *
+     * @since S60 v5.0
+     * @param aFs File server session
+     * @return New image thumbnail decoder instance.
+     */
+    CThumbnailImageDecoderv3( RFs& aFs );
+
+    /**
+     * Destructor
+     *
+     * @since S60 v5.0
+     */
+    virtual ~CThumbnailImageDecoderv3();
+
+
+    /**
+     * Creates a decoder from the given image buffer and gets image
+     * information
+     *
+     * @since S60 v5.0
+     * @param aBuffer Source image buffer.
+     * @param aObserver Observer to relay notifications about completed
+     *                  operations.
+     * @param aFlags Decoding option flags.
+     * @param aMimeType Mime-type of image to be decoded.
+     * @param aSize desired size of thumbnail.
+     */    
+    void CreateL( const TDesC8* aBuffer, MThumbnailProviderObserver&
+        aObserver, const CThumbnailManager::TThumbnailFlags aFlags, const
+        TDataType& aMimeType, const TSize& aSize );    
+    
+    /**
+     * Decode image.
+     *
+     * @since S60 v5.0
+     * @param aDisplayMode Preferred display mode.
+     */
+    void DecodeL( const TDisplayMode aDisplayMode );
+
+    /**
+     * Returns the size of original image.
+     *
+     * @since S60 v5.0
+     * @return Size of original image.
+     */
+    const TSize& OriginalSize()const;
+
+private:
+    /**
+     * Used to release reserved resources.
+     *
+     * @since S60 v5.0
+     */
+    void Release();
+
+    /**
+     * Implements cancellation of an outstanding request.
+     *
+     * @since S60 v5.0
+     */
+    void DoCancel();
+
+    /**
+     * Handles an active object's request completion event.
+     *
+     * @since S60 v5.0
+     */
+    void RunL();
+
+
+    /**
+     * Creates image decoder to be used.
+     *
+     * @since S60 v5.0
+     */
+    void CreateDecoderL();
+
+   
+
+private:
+    // data
+
+    /**
+     * Requested size.
+     */
+    TSize iSize;
+
+    /**
+     * Image decoder.
+     * Own.
+     */
+    CImageDecoder* iDecoder;
+
+    /**
+     * Decoded bitmap.
+     * Own.
+     */
+    CFbsBitmap* iBitmap;
+
+    /**
+     * Image info flags (from TFrameInfo)
+     */
+    TUint32 iFrameInfoFlags;
+
+    /**
+     * Original size of the image in pixels.
+     */
+    TSize iOriginalSize;
+
+    /**
+     * Used fileserver.
+     */
+    RFs& iFs;
+
+
+    /**
+     * Buffer from which thumbnail is to be created.
+     */    
+    const TDesC8* iBuffer;
+
+    /**
+     * Observer.
+     */
+    MThumbnailProviderObserver* iObserver; // not own
+
+    /**
+     * Mime-type.
+     */
+    TDataType iMimeType;
+};
+
+#endif // THUMBNAILIMAGEDECODERV3_H