diff -r 000000000000 -r d0791faffa3f mtpdataproviders/mtpimagedp/inc/cmtpimagedpthumbnailcreator.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mtpdataproviders/mtpimagedp/inc/cmtpimagedpthumbnailcreator.h	Tue Feb 02 01:11:40 2010 +0200
@@ -0,0 +1,141 @@
+// Copyright (c) 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:
+//
+
+/**
+ @file
+ @internalTechnology
+*/
+
+#ifndef CMTPIMAGEDPTHUMBNAILCREATOR_H
+#define CMTPIMAGEDPTHUMBNAILCREATOR_H
+
+// INCLUDES
+#include <e32base.h>
+
+#include <thumbnailmanager.h>
+#include <thumbnailmanagerobserver.h>
+#include <thumbnailobjectsource.h>
+#include <thumbnaildata.h>
+#include <imageconversion.h>
+#include <bitmaptransforms.h>
+
+class CMTPTypeOpaqueData;
+
+#include "mtpdebug.h"
+
+#define MTPTHUMBSCALING
+
+// CLASS DECLARATION
+/**
+*  A class for reading image related info and creating a thumbnail from 
+*  an image.
+*
+*  @lib ptpstack.lib
+*  @since S60 3.2
+*/
+class CMTPImageDpThumbnailCreator : public CActive, public MThumbnailManagerObserver
+    {
+public:
+
+    /**
+     * Two-phased constructor.
+     * @param None.
+     * @return An instance of CMTPImageDpThumbnailCreator.
+     */
+    static CMTPImageDpThumbnailCreator* NewL();
+
+    /**
+     * C++ destructor.
+     */
+    ~CMTPImageDpThumbnailCreator();
+    
+public:
+
+    /**
+     * Gets a thumbnail from the image.
+     * @since S60 3.2
+     * @param aSession, Reference to file server.
+     * @param aFileName, Name of the image file. Caller must ensure that the referenced object exists until the asynchronous call is completed.
+     * @param aThumbName, Name of the thumbnail file to be created. Caller must ensure that the referenced object exists until the asynchronous call is completed.
+     * @param aGetThumbnailStatus, status when 
+     */
+    void GetThumbnailL(const TDesC& aFileName, CMTPTypeOpaqueData& aThumbName, TInt& result);
+
+
+    void ClearThumbnailData();
+    CThumbnailManager*  GetThumbMgr() { return iThumbMgr;}
+
+private: // From MThumbnailManagerObserver
+    void ThumbnailReady( TInt aError, MThumbnailData& aThumbnail, TThumbnailRequestId aId );
+    void ThumbnailPreviewReady( MThumbnailData& aThumbnail, TThumbnailRequestId aId );
+
+private: // From CActive
+    void DoCancel();
+    void RunL();
+    TInt RunError(TInt aError);    
+ 
+private:
+    void EncodeImageL();    
+    /**
+     * Scales the image as a thumbnail size.
+     * @since S60 3.2
+     * @param None.
+     * @return None.
+     */
+#ifdef MTPTHUMBSCALING
+    void ScaleBitmap();
+#endif
+    void QueueThumbCreationL( const TDesC& aFileName );
+    void CreateThumbL(const TDesC& aFileName );
+    void GetThumbL(const TDesC& aFileName);
+
+private:
+    /**
+     * Default C++ constructor. Not used.
+     */
+    CMTPImageDpThumbnailCreator();
+
+    /**
+     * 2nd phase constructor.
+     */
+    void ConstructL();
+
+private:
+    /**
+    FLOGGER debug trace member variable.
+    **/
+    __FLOG_DECLARATION_MEMBER_MUTABLE;
+    
+    enum{
+        EIdle,
+        EGetting,
+        EGetted,
+        EScaling,
+        EEncoding}          iState;
+    TThumbnailRequestId     iCurrentReq;
+    TInt*                   iCreationErr;
+    CFbsBitmap*             iBitmap;
+    CImageEncoder*          iImgEnc;
+#ifdef MTPTHUMBSCALING
+    CBitmapScaler*          iScaler;
+#endif
+    HBufC8*                 iData;
+    CThumbnailManager*      iThumbMgr;
+    CThumbnailObjectSource* iObjectSource;
+    CMTPTypeOpaqueData*     iBuffer;             //not owned
+    CActiveSchedulerWait*   iActiveSchedulerWait;
+    };
+
+#endif // CMTPIMAGEDPTHUMBNAILCREATOR_H