--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pimappservices/calendar/inc/calversit.h	Tue Feb 02 10:12:19 2010 +0200
@@ -0,0 +1,123 @@
+// Copyright (c) 2006-2009 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:
+//
+
+#ifndef __CALVERSIT_H__ 
+#define __CALVERSIT_H__
+
+#include <vutil.h>
+
+class CCalEntry;
+class MCalDataExchangeCallBack;
+class RReadStream;
+class RWriteStream;
+
+class MAgnVersit
+/** Provides an interface to decouple the static dependency of CAgnEntryModel on 
+Versit.
+
+This interface is implemented by the internal class TAgnVCalConverter, in a DLL 
+called agnversit.dll. Rather than statically linking against versit.dll, the 
+agenda engine dynamically loads agnversit.dll, to remove its dependency on Versit. 
+All CAgnEntryModel's vCalendar-specific functions call the corresponding functions, 
+below. 
+@internalAll
+@released
+*/
+	{
+public:
+	/** Imports a vCalendar consisting of one or more vCalendar entities.
+	
+	The vCalendar is read from the read stream specified and its entities are 
+	converted into agenda entries and returned in the array aEntryArray.
+	
+	@param aFlags CAgnEntryModel::ELocalTime causes all date/times to be converted 
+	to machine-local; CAgnEntryModel::EDefault leaves them unadjusted.
+	@param aReadStream The read stream which contains the vCalendar.
+	@param aEntryArray On return, a list of the agenda entries which were imported 
+	from the vCalendar. The list contains the vEvents followed by the vTodos.
+	@param aEntryModel Pointer to the agenda entry model instance that is calling 
+	this function. */
+	virtual void ImportVCalL(TInt aFlags, RReadStream& aReadStream, RPointerArray<CCalEntry>& aEntryArray)=0;
+	/** Exports one or more agenda entries as vCalendar entities to the write stream 
+	specified. 
+	
+	The entries are exported either as vTodos, if they are to-dos, otherwise as 
+	vEvents.
+	
+	@param aFlags CAgnEntryModel::ELocalTime causes all date/times to be left 
+	as machine-local; CAgnEntryModel::EDefault causes them to be converted into 
+	UTC.
+	@param aWriteStream The stream to which the agenda entries should be externalised 
+	as vCalendar entities.
+	@param aEntryArray Pointer to the array of agenda entries to export.
+	@param aCharSet The character encoding type.
+	@param aEntryModel Pointer to the agenda entry model instance that is calling 
+	this function. */
+	virtual	void ExportVCalL(RWriteStream& aWriteStream, const RPointerArray<CCalEntry>& aEntryArray, const Versit::TVersitCharSet aCharSet)=0;
+	/** Parses a vCalendar stream and updates the appropriate entries.
+	
+	/** Asynchronously imports a vCalendar consisting of one or more vCalendar entities.
+	
+	The vCalendar is read from the read stream specified and its entities are 
+	converted into agenda entries and returned in the array aEntryArray.
+	@released
+	@param aFlags CAgnEntryModel::ELocalTime causes all date/times to be converted 
+	to machine-local; CAgnEntryModel::EDefault leaves them unadjusted.
+	@param aReadStream The read stream which contains the vCalendar.
+	@param aEntryArray On return, a list of the agenda entries which were imported 
+	from the vCalendar. The list contains the vEvents followed by the vTodos.
+	@param aEntryModel Pointer to the agenda entry model instance that is calling 
+	this function. 
+	@param aObserver Callback to indicate the progress of the import and when it has completed. */
+	virtual void ImportVCalAsyncL(TInt aFlags, RReadStream& aReadStream, RPointerArray<CCalEntry>& aEntryArray, 
+				 MCalDataExchangeCallBack& aObserver) = 0;
+					
+	/** Asynchronously exports one or more agenda entries as vCalendar entities to the write stream 
+	specified. 
+	
+	The entries are exported either as vTodos, if they are to-dos, otherwise as 
+	vEvents.
+	@released
+	@param aFlags CAgnEntryModel::ELocalTime causes all date/times to be left 
+	as machine-local; CAgnEntryModel::EDefault causes them to be converted into 
+	UTC.
+	@param aWriteStream The stream to which the agenda entries should be externalised 
+	as vCalendar entities.
+	@param aEntryArray Pointer to the array of agenda entries to export.
+	@param aCharSet The character encoding type.
+	@param aEntryModel Pointer to the agenda entry model instance that is calling 
+	this function. 
+	@param aObserver Callback to indicate the progress of the import and when it has completed.  */
+	virtual void ExportVCalAsyncL(RWriteStream& aWriteStream, RPointerArray<CCalEntry>& aCalEntryArray, 
+				MCalDataExchangeCallBack& aObserver, const Versit::TVersitCharSet aCharSet) = 0;
+
+	};
+	
+class CAgnVersit: public CBase, public MAgnVersit
+/** Provides an interface for ECom plugins
+@internalAll
+@released
+*/
+	{
+public:
+	static CAgnVersit* NewL();
+	/** Releases Ecom resources
+	*/
+	IMPORT_C virtual ~CAgnVersit();
+private:
+	TUid iDtor_ID_Key;
+	};
+
+#endif // __CCALDATAEXCHANGE_H__