/*************************************************************************
 *
 *  OpenOffice.org - a multi-platform office productivity suite
 *
 *  $RCSfile: lckbitem.cxx,v $
 *
 *  $Revision: 1.4 $
 *
 *  last change: $Author: vg $ $Date: 2006-03-16 13:05:11 $
 *
 *  The Contents of this file are made available subject to
 *  the terms of GNU Lesser General Public License Version 2.1.
 *
 *
 *    GNU Lesser General Public License Version 2.1
 *    =============================================
 *    Copyright 2005 by Sun Microsystems, Inc.
 *    901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License version 2.1, as published by the Free Software Foundation.
 *
 *    This library is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *    Lesser General Public License for more details.
 *
 *    You should have received a copy of the GNU Lesser General Public
 *    License along with this library; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *    MA  02111-1307  USA
 *
 ************************************************************************/

#define _LCKBITEM_CXX
#include "lckbitem.hxx"

#ifndef _SFXPOOLITEM_HXX
#include "poolitem.hxx"
#endif

#ifndef _COM_SUN_STAR_UNO_ANY_HXX_
#include <com/sun/star/uno/Any.hxx>
#endif
#ifndef _COM_SUN_STAR_UNO_SEQUENCE_HXX_
#include <com/sun/star/uno/Sequence.hxx>
#endif

#ifndef _CACHESTR_HXX //autogen
#include <tools/cachestr.hxx>
#endif

// STATIC DATA -----------------------------------------------------------


// -----------------------------------------------------------------------

TYPEINIT1_AUTOFACTORY(SfxLockBytesItem, SfxPoolItem);

// -----------------------------------------------------------------------

SfxLockBytesItem::SfxLockBytesItem()
{
}

// -----------------------------------------------------------------------

SfxLockBytesItem::SfxLockBytesItem( USHORT nW, SvLockBytes *pLockBytes )
:   SfxPoolItem( nW ),
    _xVal( pLockBytes )
{
}

// -----------------------------------------------------------------------

SfxLockBytesItem::SfxLockBytesItem( USHORT nW, SvStream &rStream )
:   SfxPoolItem( nW )
{
    rStream.Seek( 0L );
    _xVal = new SvLockBytes( new SvCacheStream(), TRUE );

    SvStream aLockBytesStream( _xVal );
    rStream >> aLockBytesStream;
}

// -----------------------------------------------------------------------

SfxLockBytesItem::SfxLockBytesItem( const SfxLockBytesItem& rItem )
:   SfxPoolItem( rItem ),
    _xVal( rItem._xVal )
{
}

// -----------------------------------------------------------------------

SfxLockBytesItem::~SfxLockBytesItem()
{
}

// -----------------------------------------------------------------------

int SfxLockBytesItem::operator==( const SfxPoolItem& rItem ) const
{
    return ((SfxLockBytesItem&)rItem)._xVal == _xVal;
}

// -----------------------------------------------------------------------

SfxPoolItem* SfxLockBytesItem::Clone(SfxItemPool *) const
{
    return new SfxLockBytesItem( *this );
}

// -----------------------------------------------------------------------

#define MAX_BUF 32000

SfxPoolItem* SfxLockBytesItem::Create( SvStream &rStream, USHORT nVersion ) const
{
    sal_uInt32 nSize = 0;
    ULONG nActRead = 0;
    sal_Char cTmpBuf[MAX_BUF];
    SvMemoryStream aNewStream;
    rStream >> nSize;

    do {
        ULONG nToRead;
        if( (nSize - nActRead) > MAX_BUF )
            nToRead = MAX_BUF;
        else
            nToRead = nSize - nActRead;
        nActRead += rStream.Read( cTmpBuf, nToRead );
        aNewStream.Write( cTmpBuf, nToRead );
    } while( nSize > nActRead );

    return new SfxLockBytesItem( Which(), aNewStream );
}

// -----------------------------------------------------------------------

SvStream& SfxLockBytesItem::Store(SvStream &rStream, USHORT nItemVersion ) const
{
    SvStream aLockBytesStream( _xVal );
    sal_uInt32 nSize = aLockBytesStream.Seek( STREAM_SEEK_TO_END );
    aLockBytesStream.Seek( 0L );

    rStream << nSize;
    rStream << aLockBytesStream;

    return rStream;
}

//----------------------------------------------------------------------------
// virtual
BOOL SfxLockBytesItem::PutValue( const com::sun::star::uno::Any& rVal,
                                    BYTE nMemberId )
{
    com::sun::star::uno::Sequence< sal_Int8 > aSeq;
    if ( rVal >>= aSeq )
    {
        if ( aSeq.getLength() )
        {
            SvCacheStream* pStream = new SvCacheStream;
            pStream->Write( (void*)aSeq.getConstArray(), aSeq.getLength() );
            pStream->Seek(0);

            _xVal = new SvLockBytes( pStream, TRUE );
        }
        else
            _xVal = NULL;

        return TRUE;
    }

    DBG_ERROR( "SfxLockBytesItem::PutValue - Wrong type!" );
    return FALSE;
}

//----------------------------------------------------------------------------
// virtual
BOOL SfxLockBytesItem::QueryValue( com::sun::star::uno::Any& rVal,
                                    BYTE nMemberId ) const
{
    if ( _xVal.Is() )
    {
        sal_uInt32 nLen;
        SvLockBytesStat aStat;

        if ( _xVal->Stat( &aStat, SVSTATFLAG_DEFAULT ) == ERRCODE_NONE )
            nLen = aStat.nSize;
        else
            return FALSE;

        ULONG nRead = 0;
        com::sun::star::uno::Sequence< sal_Int8 > aSeq( nLen );

        _xVal->ReadAt( 0, aSeq.getArray(), nLen, &nRead );
        rVal <<= aSeq;
    }
    else
    {
        com::sun::star::uno::Sequence< sal_Int8 > aSeq( 0 );
        rVal <<= aSeq;
    }

    return TRUE;
}