84 lines
2.9 KiB
C++
84 lines
2.9 KiB
C++
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: laycache.hxx,v $
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*
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* $Revision: 1.3 $
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*
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* last change: $Author: rt $ $Date: 2005-09-09 03:49:54 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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#ifndef _LAYCACHE_HXX
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#define _LAYCACHE_HXX
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class SwDoc;
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class SwLayCacheImpl;
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/*************************************************************************
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* class SwLayoutCache
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*
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* This class allows to save layout information in the file and it contains
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* this information after loading of a file.
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* Call Write(..) with a stream and the document to save and the page break
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* information of the document will be written.
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* Call Read(..) with a stream and the member pLayCacheImpl will
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* read the information from the stream and store it in an internal structur.
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* There's a simple locking mechanism at these classes,
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* if somebody reads the information, he increments the lock count by 1,
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* during the Read(..) function the lock count will set to $8000.
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*
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**************************************************************************/
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class SwLayoutCache
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{
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SwLayCacheImpl *pImpl;
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USHORT nLockCount;
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public:
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SwLayoutCache() : pImpl( NULL ), nLockCount( 0 ) {}
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~SwLayoutCache();
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void Read( SvStream &rStream );
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void Write( SvStream &rStream, const SwDoc& rDoc );
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void ClearImpl();
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sal_Bool IsLocked() const { return nLockCount > 0; }
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USHORT& GetLockCount() { return nLockCount; }
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SwLayCacheImpl *LockImpl()
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{ if( nLockCount & 0x8000 ) return NULL;
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if ( pImpl )
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++nLockCount;
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return pImpl; }
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void UnlockImpl() { --nLockCount; }
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#ifndef PRODUCT
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sal_Bool CompareLayout( const SwDoc& rDoc ) const;
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#endif
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};
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#endif
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