1 /*

     2 * Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 

    18 

    19 #include "FLDBASE.H"

    20 #include "FLDSTD.H"

    21 

    22 

    23 ///////////////////////////////////////

    24 // CTextField

    25 ///////////////////////////////////////

    26 

    27  

    28 EXPORT_C TStreamId CTextField::StoreL(CStreamStore& aStore) const

    29 // Assumes everything goes into the head stream.

    30 // (Must be replaced by concrete pictures that have components)

    31 /** Stores the field data to a stream store. Concrete field types with no persistent 

    32 data should override this function to return KNullStreamId.

    33 

    34 @param aStore Stream store to which the field data is written. 

    35 @return The ID of the stream store. */

    36 	{

    37 	RStoreWriteStream stream;

    38 	TStreamId id=stream.CreateLC(aStore);

    39     stream<< *this;  // provided by the concrete field

    40     stream.CommitL();

    41 	CleanupStack::PopAndDestroy();

    42 	return id;

    43 	}

    44 

    45  

    46 EXPORT_C void CTextField::RestoreL(const CStreamStore& aStore,TStreamId aStreamId)

    47 // Creates a read-stream over aStore, and opens it over the specified stream ID.

    48 //

    49 	/** Restores the field data from a stream store. Concrete field types with no persistent 

    50 	data should override this function to do nothing.

    51 	

    52 	@param aStore Stream store containing the field data to restore. 

    53 	@param aId The ID of the stream store in which the field data was previously 

    54 	stored. */

    55 	{

    56 	RStoreReadStream stream;

    57 	stream.OpenLC(aStore,aStreamId);

    58 	stream>> *this;

    59 	CleanupStack::PopAndDestroy();

    60 	}

    61 

    62 

    63 

    64 EXPORT_C void CTextField::ExternalizeL(RWriteStream& /*aStream*/)const

    65 //

    66 	/** Externalises the field data. Called by StoreL().

    67 	

    68 	Calling this default implementation raises a panic. Concrete field classes 

    69 	with persistent data must provide their own implementation of this function. 

    70 	Concrete field classes with no persistent data must provide a StoreL() implementation 

    71 	that just returns KNullStreamId.

    72 	

    73 	@param aStream Not used. */

    74 	{Panic(EDefaultFieldExternalizeCalled);}

    75