diff -r 000000000000 -r 72b543305e3a email/mail/ViewerSrc/MsgMailViewerCharConv.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/email/mail/ViewerSrc/MsgMailViewerCharConv.h	Thu Dec 17 08:44:11 2009 +0200
@@ -0,0 +1,161 @@
+/*
+* 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: 
+*     Declares character converter for application.
+*
+*/
+
+
+#ifndef MSGMAILVIEWERCHARCONV_H
+#define MSGMAILVIEWERCHARCONV_H
+
+// INCLUDES
+#include <AknWaitNoteWrapper.h>
+
+// CONSTANTS
+
+// FORWARD DECLARATIONS
+class CImConvertCharconv;
+class CCnvCharacterSetConverter;
+// CLASS DECLARATION
+
+
+/**
+*  CMsgMailViewerDocument application class.
+*/
+class CMsgMailViewerCharConv : public CBase, public MAknBackgroundProcess
+    {
+    public: // Constructors and destructor
+        /**
+        * Two-phased constructor.
+        */
+        static CMsgMailViewerCharConv* NewL( TUint aCharset );
+
+        /**
+        * Destructor.
+        */
+        virtual ~CMsgMailViewerCharConv();
+
+    public: // from MAknBackgroundProcess
+
+        /**
+         * Completes one cycle of the process.
+         */
+        void StepL();
+
+        /**
+         * Return true when the process is done.
+         */
+        TBool IsProcessDone() const;
+
+    private:
+
+        /**
+        * Default constructor.
+        */
+        CMsgMailViewerCharConv();
+        
+        /**
+        * Symbian OS default constructor.
+        */
+        void ConstructL( TUint aCharset );
+
+    public: // new methods
+        /**
+        * Prepares to convert from Unicode.
+        * @param aSource  The text to be converted.
+        */
+        void PrepareToConvertFromUnicodeL( const TDesC16& aSource );
+
+        /**
+        * Prepares to convert to Unicode.
+        * @param aSource  The text to be converted.
+        */
+        void PrepareToConvertToUnicodeL( const TDesC8& aSource );
+
+        /**
+        * Returns the result of the conversion to Unicode. The ownership is
+        * transferred to the caller.
+        * @return       The result of conversion.
+        */
+        HBufC16* GetUnicodeText();
+
+        /**
+        * Returns the result of the conversion from Unicode. The ownership is
+        * transferred to the caller.
+        * @return       The result of conversion.
+        */
+        HBufC8* GetForeignText();
+
+        /**
+        * Returns the number of failed characters for Unicode->foreign conversion.
+        * @return       The number of failed characters.
+        */
+        TInt GetFailedCount() const;
+
+    private: // new methods
+        /**
+        * Converts one block from Unicode.
+        */
+        void StepFromUnicodeL();
+
+        /**
+        * Converts one block to Unicode.
+        */
+        void StepToUnicodeL();
+
+        /**
+        * Appends data to iTarget16 possibly extending it.
+        * @param aData      Data to be appended.
+        */
+        void AppendTextL( const TDesC16& aData );
+
+        /**
+        * Appends data to iTarget8 possibly extending it.
+        * @param aData      Data to be appended.
+        */
+        void AppendTextL( const TDesC8& aData );
+
+    private: // Member data
+        /// Owns: Character converter instance.
+        CCnvCharacterSetConverter* iCharConv;
+        /// Own
+        CImConvertCharconv* iImCharConv;
+
+        /// Own: The text in target character set if converting from Unicode.
+        HBufC8* iTarget8;
+
+        /// Own: The text in target character set if converting to Unicode
+        HBufC16* iTarget16;
+
+        /// Refs: The text in source character set if converting from Unicode.
+        TPtrC16 iSource16;
+
+        /// Refs: The text in source character set if converting to Unicode.
+        TPtrC8 iSource8;
+
+        /// ETrue, if converting from Unicode
+        TBool iFromUnicode;
+
+        /// State when converting to Unicode
+        TInt iState;
+
+        /// Number of failed characters when converting from Unicode.
+        TInt iFailCount;
+    };
+
+#endif
+
+// End of File
+