xref: /AOO41X/main/svl/source/items/cntwall.cxx (revision 40df464ee80f942fd2baf5effc726656f4be12a0)

/**************************************************************
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/



// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svl.hxx"

#include <tools/debug.hxx>
#include <tools/string.hxx>
#include <tools/stream.hxx>
#include <tools/vcompat.hxx>

#include <svl/cntwall.hxx>

#define CNTWALLPAPERITEM_STREAM_MAGIC   ( (sal_uInt32)0xfefefefe )
#define CNTWALLPAPERITEM_STREAM_SEEKREL (-( (long)( sizeof( sal_uInt32 ) ) ) )

TYPEINIT1( CntWallpaperItem, SfxPoolItem );

// -----------------------------------------------------------------------
CntWallpaperItem::CntWallpaperItem( sal_uInt16 which )
	: SfxPoolItem( which ), _nColor( COL_TRANSPARENT ), _nStyle( 0 )
{
}

// -----------------------------------------------------------------------
CntWallpaperItem::CntWallpaperItem( sal_uInt16 which, SvStream& rStream, sal_uInt16 nVersion )
	: SfxPoolItem( which ), _nColor( COL_TRANSPARENT ), _nStyle( 0 )
{
	sal_uInt32 nMagic = 0;
	rStream >> nMagic;
	if ( nMagic == CNTWALLPAPERITEM_STREAM_MAGIC )
	{
		// Okay, data were stored by CntWallpaperItem.

		readUnicodeString(rStream, _aURL, nVersion >= 1);
		// !!! Color stream operators do not work - they discard any
		// transparency info !!!
		_nColor.Read( rStream, sal_True );
		rStream >> _nStyle;
	}
	else
	{
		rStream.SeekRel( CNTWALLPAPERITEM_STREAM_SEEKREL );

		// Data were stored by SfxWallpaperItem ( SO < 6.0 ). The only
		// thing we can do here is to get the URL and to position the stream.

		{
			// "Read" Wallpaper member - The version compat object positions
			// the stream after the wallpaper data in its dtor. We must use
			// this trick here as no VCL must be used here ( No Wallpaper
			// object allowed ).
			VersionCompat aCompat( rStream, STREAM_READ );
		}

		// Read SfxWallpaperItem's string member _aURL.
		readUnicodeString(rStream, _aURL, false);

		// "Read" SfxWallpaperItem's string member _aFilter.
		ByteString aDummy;
		rStream.ReadByteString(aDummy);
	}
}

// -----------------------------------------------------------------------
CntWallpaperItem::CntWallpaperItem( const CntWallpaperItem& rItem ) :
	SfxPoolItem( rItem ),
	_aURL( rItem._aURL ),
	_nColor( rItem._nColor ),
	_nStyle( rItem._nStyle )
{
}

// -----------------------------------------------------------------------
CntWallpaperItem::~CntWallpaperItem()
{
}

// -----------------------------------------------------------------------
int CntWallpaperItem::operator==( const SfxPoolItem& rItem ) const
{
	DBG_ASSERT( SfxPoolItem::operator==( rItem ), "unequal type" );

	const CntWallpaperItem& rWallItem = (const CntWallpaperItem&)rItem;

	if( ( rWallItem._nStyle == _nStyle ) &&
		( rWallItem._nColor == _nColor ) &&
		( rWallItem._aURL == _aURL ) )
		return sal_True;
	else
		return sal_False;
}

//============================================================================
// virtual
sal_uInt16 CntWallpaperItem::GetVersion(sal_uInt16) const
{
	return 1; // because it uses SfxPoolItem::read/writeUnicodeString()
}

// -----------------------------------------------------------------------
SfxPoolItem* CntWallpaperItem::Create( SvStream& rStream, sal_uInt16 nVersion) const
{
	return new CntWallpaperItem( Which(), rStream, nVersion );
}

// -----------------------------------------------------------------------
SvStream& CntWallpaperItem::Store( SvStream& rStream, sal_uInt16 ) const
{
	rStream << CNTWALLPAPERITEM_STREAM_MAGIC;
	writeUnicodeString(rStream, _aURL);
	// !!! Color stream operators do not work - they discard any
	// transparency info !!!
	// ??? Why the hell Color::Write(...) isn't const ???
	SAL_CONST_CAST( CntWallpaperItem*, this )->_nColor.Write( rStream, sal_True );
	rStream << _nStyle;

	return rStream;
}

// -----------------------------------------------------------------------
SfxPoolItem* CntWallpaperItem::Clone( SfxItemPool* ) const
{
	return new CntWallpaperItem( *this );
}

//----------------------------------------------------------------------------
// virtual
sal_Bool CntWallpaperItem::QueryValue( com::sun::star::uno::Any&,sal_uInt8 ) const
{
    DBG_ERROR("Not implemented!");
	return sal_False;
}

//----------------------------------------------------------------------------
// virtual
sal_Bool CntWallpaperItem::PutValue( const com::sun::star::uno::Any&,sal_uInt8 )
{
    DBG_ERROR("Not implemented!");
	return sal_False;
}