sl@0: /*
sl@0: * Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: 
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: #include "FLDBASE.H"
sl@0: #include "FLDSTD.H"
sl@0: 
sl@0: 
sl@0: ///////////////////////////////////////
sl@0: // CTextField
sl@0: ///////////////////////////////////////
sl@0: 
sl@0:  
sl@0: EXPORT_C TStreamId CTextField::StoreL(CStreamStore& aStore) const
sl@0: // Assumes everything goes into the head stream.
sl@0: // (Must be replaced by concrete pictures that have components)
sl@0: /** Stores the field data to a stream store. Concrete field types with no persistent 
sl@0: data should override this function to return KNullStreamId.
sl@0: 
sl@0: @param aStore Stream store to which the field data is written. 
sl@0: @return The ID of the stream store. */
sl@0: 	{
sl@0: 	RStoreWriteStream stream;
sl@0: 	TStreamId id=stream.CreateLC(aStore);
sl@0:     stream<< *this;  // provided by the concrete field
sl@0:     stream.CommitL();
sl@0: 	CleanupStack::PopAndDestroy();
sl@0: 	return id;
sl@0: 	}
sl@0: 
sl@0:  
sl@0: EXPORT_C void CTextField::RestoreL(const CStreamStore& aStore,TStreamId aStreamId)
sl@0: // Creates a read-stream over aStore, and opens it over the specified stream ID.
sl@0: //
sl@0: 	/** Restores the field data from a stream store. Concrete field types with no persistent 
sl@0: 	data should override this function to do nothing.
sl@0: 	
sl@0: 	@param aStore Stream store containing the field data to restore. 
sl@0: 	@param aId The ID of the stream store in which the field data was previously 
sl@0: 	stored. */
sl@0: 	{
sl@0: 	RStoreReadStream stream;
sl@0: 	stream.OpenLC(aStore,aStreamId);
sl@0: 	stream>> *this;
sl@0: 	CleanupStack::PopAndDestroy();
sl@0: 	}
sl@0: 
sl@0: 
sl@0: 
sl@0: EXPORT_C void CTextField::ExternalizeL(RWriteStream& /*aStream*/)const
sl@0: //
sl@0: 	/** Externalises the field data. Called by StoreL().
sl@0: 	
sl@0: 	Calling this default implementation raises a panic. Concrete field classes 
sl@0: 	with persistent data must provide their own implementation of this function. 
sl@0: 	Concrete field classes with no persistent data must provide a StoreL() implementation 
sl@0: 	that just returns KNullStreamId.
sl@0: 	
sl@0: 	@param aStream Not used. */
sl@0: 	{Panic(EDefaultFieldExternalizeCalled);}
sl@0: