--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uiservicetab/vimpstdetailsviewplugin/inc/cvimpstdetailsimagedecoder.h	Wed Sep 01 12:33:36 2010 +0100
@@ -0,0 +1,150 @@
+/*
+* Copyright (c) 2008 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:  Utility class for asynchronously decoding the header thumbnail image
+ *
+*/
+
+ 
+#ifndef CVIMPSTDETAILSIMAGEDECODER_H_
+#define CVIMPSTDETAILSIMAGEDECODER_H_
+
+#include <e32base.h>
+#include <f32file.h>
+
+class CVIMPSTDetailsHeaderControl;
+class CImageDecoder;
+class CFbsBitmap;
+class CBitmapScaler;
+
+/**
+ * Utility class for asynchronously decoding the header thumbnail image
+ *
+ *  @lib vimpstdetailsviewplugin.dll
+ *  @since S60 v5.0
+ */
+class CVIMPSTDetailsImageDecoder : public CActive
+    {
+public:
+    /**
+     * Two-phased constructor
+     * 
+     * @param aHeader The header control to which the bitmap is to be inserted after loading
+     * @param aBitmapData Descriptor containing the bitmap data stream
+     * @return a instance of same class
+     * @since S60 v5.0 
+     */
+    static CVIMPSTDetailsImageDecoder* NewL(CVIMPSTDetailsHeaderControl& aHeader, const TDesC8& aBitmapData);
+    
+    /**
+     * Destructor
+	 * @since S60 v5.0 
+     */
+    ~CVIMPSTDetailsImageDecoder();
+    
+    /**
+     * Starts the decoding process
+     * @since S60 v5.0 
+     *
+     */
+    void StartL(TSize aBitmapSize);
+    
+    /**
+     * From CActive
+     * (see details from baseclass )
+     * @since S60 v5.0 
+     */
+    void RunL();
+    
+    /**
+     * From CActive
+     * (see details from baseclass )
+     * @since S60 v5.0 
+     */
+    void DoCancel();
+private:
+    /**
+     * First-phase (C++) constructor
+     * @param aHeader The header control to which the bitmap is to be inserted after loading
+     * @since S60 v5.0  
+     */
+    CVIMPSTDetailsImageDecoder(CVIMPSTDetailsHeaderControl& aHeader);
+    
+    /**
+     * Second phase constructor
+     * @since S60 v5.0 
+     * @param aBitmapData Descriptor containing the bitmap data stream
+     */
+    void ConstructL(const TDesC8& aBitmapData);
+    /**
+     * Scales bitmap
+     *
+     */
+    void ScaleBitmapL();
+
+    enum TCcaImageDecoderState
+        {
+        ECcaConvertThumbnailImage = 1,
+        ECcaScaleThumbnail,       
+        };
+    
+    /**
+     * Create bitmap
+     *
+     */
+    void CreateBitmapL();
+ private : // data  
+    
+  
+    /**
+     * Not Owns : The header control to which the bitmap is to be inserted after loading
+     */
+    CVIMPSTDetailsHeaderControl& iHeader;
+
+
+    /**
+     * Owns : The image decoder whose service is called to decode the image
+     */
+    CImageDecoder* iImgDecoder;
+      
+    /**
+     * Owns : Handle to the file server session for loading the bitmap
+     */ 
+    RFs iFs;
+    
+    /**
+     * The bitmap.
+     * Owned until decoding is complete, then ownersip is transferred to header control.
+     */
+    CFbsBitmap* iBitmap; // owned until completion
+    
+    /**
+     * Owns : Copy of the bitmap data stream
+     */
+    HBufC8* iBitmapData;
+    
+    /**
+     * The image scaler whose service is called to scale the image
+     * Own.
+     */
+    CBitmapScaler* iBitmapScaler;
+
+    TSize iBitmapSize;
+
+    /** 
+     * Decoder internal state
+     */ 
+    TInt iDecoderState;
+    };
+
+#endif /*CVIMPSTDETAILSIMAGEDECODER_H_*/