diff -r 000000000000 -r e686773b3f54 phonebookui/Phonebook/View/inc/CPbkThumbnailReaderBase.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/phonebookui/Phonebook/View/inc/CPbkThumbnailReaderBase.h	Tue Feb 02 10:12:17 2010 +0200
@@ -0,0 +1,162 @@
+/*
+* Copyright (c) 2002 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: 
+*     Class CPbkThumbnailManager implementation classes.
+*
+*/
+
+
+#ifndef __CPbkThumbnailReaderBase_H__
+#define __CPbkThumbnailReaderBase_H__
+
+//  INCLUDES
+#include <e32base.h>
+#include "CPbkThumbnailManagerImpl.h"
+#include "MPbkImageReaderObserver.h"
+
+//  FORWARD DECLARATIONS
+class MPbkThumbnailGetObserver;
+class CPbkImageReader;
+class MPbkThumbnailGetImageObserver;
+class MPbkImageData;
+class CPbkImageDataWithInfo;
+class TPbkImageLoadParameters;
+
+
+// CLASS DECLARATION
+
+/**
+ * Implementation base class for thumbnail readers.
+ */
+NONSHARABLE_CLASS(CPbkThumbnailReaderBase) : 
+        public CBase, 
+        public MPbkThumbnailReader,
+        private MPbkImageReaderObserver
+    {
+    protected: // interface
+        /**
+         * Constructor.
+		 * @param aObserver thumbnail get observer
+         */
+        CPbkThumbnailReaderBase(MPbkThumbnailGetObserver& aObserver);
+
+        /**
+         * Second phase constructor.
+         */
+        void ConstructL();
+   
+        /**
+         * Destructor. Cancels any previously executing read operation and
+         * destroys this object.
+         */
+        ~CPbkThumbnailReaderBase();
+
+        /**
+         * Returns the image reader.
+         */
+        CPbkImageReader& ImageReader()
+			{
+			return *iImageReader;
+			}
+
+    public:  // from MPbkThumbnailReader
+        void CancelRead();
+
+    private:  // from MPbkImageReaderObserver
+        void ImageReadComplete(CPbkImageReader& aReader, CFbsBitmap* aBitmap);
+        void ImageReadFailed(CPbkImageReader& aReader, TInt aError);
+
+    private: // data members
+        /// Ref: observer
+        MPbkThumbnailGetObserver& iObserver;
+        /// Own: image reader
+        CPbkImageReader* iImageReader;
+    };
+
+
+/**
+ * Implementation base class for thumbnail image readers.
+ */
+NONSHARABLE_CLASS(CPbkThumbnailImageReaderBase) : 
+        public CBase, 
+        public MPbkThumbnailReader,
+        private MPbkImageReaderObserver
+    {
+    protected: // Interface
+        /**
+         * Constructor.
+         * @param aObserver observer to notify about progress of this 
+         *        operation
+         */
+        CPbkThumbnailImageReaderBase
+            (MPbkThumbnailGetImageObserver& aObserver);
+
+        /**
+         * Second phase constructor.
+         */
+        void ConstructL();
+
+        /**
+         * Destructor. Cancels any previously executing read operation and
+         * destroys this object.
+         */
+        ~CPbkThumbnailImageReaderBase();
+
+        /**
+         * Returns the image reader.
+         */
+        CPbkImageReader& ImageReader()
+			{
+			return *iImageReader;
+			}
+
+    private:  // Abstract interface for derived classes
+        /**
+         * Starts image reader.
+         * 
+         * @param aParameters  Optional parameters for resulting thumbnail
+         */
+        virtual void DoStartReadL
+			(const TPbkImageLoadParameters* aParameters = NULL) =0;
+
+        /**
+         * Creates and returns an image data object.
+         */
+        virtual MPbkImageData* CreateImageDataLC() =0;
+
+    public:  // From MPbkThumbnailReader
+        void StartReadL(const TPbkImageLoadParameters* aParameters = NULL);
+        void CancelRead();
+
+    private:  // From MPbkImageReaderObserver
+        void ImageReadComplete
+            (CPbkImageReader& aReader, CFbsBitmap* aBitmap);
+        void ImageReadFailed(CPbkImageReader& aReader, TInt aError);
+        void ImageOpenComplete(CPbkImageReader& aReader);
+
+    private: // Implementation
+        void HandleImageOpenCompleteL();
+
+    private: // data members
+        /// Ref: observer
+        MPbkThumbnailGetImageObserver& iObserver;
+        /// Own: image reader
+        CPbkImageReader* iImageReader;
+        /// Own: image data
+        CPbkImageDataWithInfo* iImageData;
+    };
+
+#endif // __CPbkThumbnailReaderBase_H__
+
+// End of File