--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/phonebookui/Phonebook/View/inc/CPbkImageReader.h	Tue Feb 02 10:12:17 2010 +0200
@@ -0,0 +1,171 @@
+/*
+* 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: 
+*     Phonebook image reader class definition.
+*
+*/
+
+
+#ifndef __CPbkImageReader_H__
+#define __CPbkImageReader_H__
+
+//  INCLUDES
+#include <e32base.h>    // CBase
+#include "TPbkImageLoadParameters.h"
+
+// FORWARD DECLARATIONS
+class MPbkImageReaderObserver;
+class CImageDecoder;
+class CBitmapScaler;
+class TFrameInfo;
+
+// CLASS DECLARATIONS
+
+/**
+ * Phonebook image file or buffer -> bitmap reader.
+ */
+NONSHARABLE_CLASS(CPbkImageReader) : 
+        public CActive
+    {
+    public: // interface
+        /**
+         * Creates a new instance of this class.
+         *
+         * @param aObserver observer to notify about progress of this 
+         *        operation.
+         */
+        static CPbkImageReader* NewL(MPbkImageReaderObserver& aObserver);
+   
+        /**
+         * Destructor. Cancels any executing read operation and destroys this
+         * object. Observer is not notified about the cancellation.
+         */
+        ~CPbkImageReader();
+
+        /**
+         * Reads bitmap from file. Cancels any previously executing read 
+         * operation. Observer is not notified about the cancellation.
+         *
+         * @param aFileName name of the image file to read
+         * @param aParams   optional parameters, @see TPbkImageLoadParameters
+         */
+        void ReadFromFileL
+            (const TDesC& aFileName, 
+            const TPbkImageLoadParameters* aParams=NULL);
+
+        /**
+         * Reads bitmap from buffer. Cancels any previously executing read 
+         * operation. Observer is not notified about the cancellation.
+         *
+         * @param aBuffer   the buffer to read the image from. Caller must keep
+         *                  the buffer alive as long as this reader is 
+         *                  executing
+         * @param aParams   optional parameters, @see TPbkImageLoadParameters
+         */
+        void ReadFromBufferL
+            (const TDesC8& aBuffer, 
+            const TPbkImageLoadParameters* aParams=NULL);
+
+        /**
+         * Recognizes image format in a file.
+         *
+         * @param aFileName file to recognize image format from.
+         * @see ImageFormat().
+         */
+        void RecognizeFormatFromFileL(const TDesC& aFileName);
+
+        /**
+         * Recognizes image format in a buffer.
+         *
+         * @param aBuffer buffer to recognize image format from.
+         * @see ImageFormat().
+         */
+        void RecognizeFormatFromBufferL(const TDesC8& aBuffer);
+
+        /**
+         * Returns Mime string of the recognized format. Recognizing
+         * function has to be called before this, otherwise Mime string
+         * is not known and NULL descriptor will be returned.
+         *
+         * @return Mime string of the recognized format.
+         */
+        const TDesC8& MimeString() const;
+
+        /**
+         * Returns information about a frame of the image.
+         * Can be called after this object calls ImageOpenComplete to its
+         * observer.
+         *
+         * @param aFrame    number of the frame to get inforamtion of.
+         * @param aInfo     frame information is written to this parameter.
+         * @precond aFrame>=0 && aFrame<FrameCount()
+         * @see CImageDecoder::FrameInfo
+         */
+        void FrameInfo(TInt aFrame, TFrameInfo& aInfo) const;
+
+        /**
+         * Returns the frame count of the image.
+         * Can be called after this object calls ImageOpenComplete to its
+         * observer.
+         *
+         * @see CImageDecoder::FrameCount
+         */
+        TInt FrameCount() const;
+
+        /**
+         * This is overridden from CActive because 
+         * observers may be called from RunL. If observers then call
+         * Cancel method, the CActive implementation does not call DoCancel.
+         * However, in this case it has to be called so that resources 
+         * are freed immediately in case of Cancel.
+         */
+        void Cancel();
+
+    private: // From CActive
+        void RunL();
+        TInt RunError(TInt aError);
+        void DoCancel();
+       
+    private: // implementation
+        CPbkImageReader(MPbkImageReaderObserver& aObserver);
+        void ConstructL();
+        void NextStateL();
+        void ConvertImageToBitmapL();
+        void ScaleBitmapL();
+        void Complete();
+        void InitReadL(const TPbkImageLoadParameters* aParams);
+        void CloseImage();
+
+    private: // data members
+        /// Ref: observer
+        MPbkImageReaderObserver& iObserver;
+        /// Own: currect asynchronous step
+        TInt iState;
+        /// Own: reading parameters
+        TPbkImageLoadParameters iParams;
+        /// Own: file server session
+        RFs iFsSession;
+        /// Own: image decoder
+        CImageDecoder* iImageDecoder;        
+        /// Own: read bitmap
+        CFbsBitmap* iBitmap;
+        /// Own: bitmap scaler
+        CBitmapScaler* iBitmapScaler;
+        /// Own: Mime string of the read image
+        HBufC8* iMimeString;
+    };
+
+#endif // __CPbkImageReader_H__
+	
+// End of File