ad760dad21
Change-Id: I73cd4c901aa003abec43f55948c184672d2e14ff Reviewed-on: https://gerrit.libreoffice.org/338 Reviewed-by: Eike Rathke <erack@redhat.com> Tested-by: Jan Holesovsky <kendy@suse.cz> Reviewed-by: Jan Holesovsky <kendy@suse.cz>
130 lines
4 KiB
C++
130 lines
4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org 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
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#ifndef SW_BPARR_HXX
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#define SW_BPARR_HXX
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#include <assert.h>
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#include <tools/solar.h>
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#include <osl/diagnose.h>
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#include <swdllapi.h>
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struct BlockInfo;
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class BigPtrArray;
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class BigPtrEntry
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{
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friend class BigPtrArray;
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BlockInfo* pBlock;
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sal_uInt16 nOffset;
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public:
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virtual ~BigPtrEntry() {}
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protected:
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BigPtrEntry() : pBlock(0), nOffset(0) {}
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inline sal_uLong GetPos() const;
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inline BigPtrArray& GetArray() const;
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};
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typedef BigPtrEntry* ElementPtr;
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typedef sal_Bool (*FnForEach)( const ElementPtr&, void* pArgs );
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// 1000 entries per Block = a bit less then 4K
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#define MAXENTRY 1000
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// number of entries that may remain free during compression
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// this value is for the worst case; because we defined MAXBLOCK with ca 25%
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// overhead, 80% = 800 entries are enough
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// if complete compression is desired, 100 has to be specified
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#define COMPRESSLVL 80
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struct BlockInfo { // block info:
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BigPtrArray* pBigArr; ///< in this array the block is located
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ElementPtr* pData; ///< data block
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sal_uLong nStart, nEnd; ///< start- and end index
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sal_uInt16 nElem; ///< number of elements
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};
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class SW_DLLPUBLIC BigPtrArray
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{
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BlockInfo** ppInf; // block info
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sal_uLong nSize; ///< number of elements
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sal_uInt16 nMaxBlock; ///< current max. number of blocks
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sal_uInt16 nBlock; ///< number of blocks
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sal_uInt16 nCur; ///< last block
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sal_uInt16 Index2Block( sal_uLong ) const; ///< block search
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BlockInfo* InsBlock( sal_uInt16 ); ///< insert block
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void BlockDel( sal_uInt16 ); ///< some blocks were deleted
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void UpdIndex( sal_uInt16 ); ///< recalculate indices
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protected:
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// fill all blocks
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// the short parameter specifies in percent, how full the blocks should be
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// made
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sal_uInt16 Compress( short = COMPRESSLVL );
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public:
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BigPtrArray();
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~BigPtrArray();
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sal_uLong Count() const { return nSize; }
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void Insert( const ElementPtr& r, sal_uLong pos );
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void Remove( sal_uLong pos, sal_uLong n = 1 );
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void Move( sal_uLong from, sal_uLong to );
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void Replace( sal_uLong pos, const ElementPtr& r);
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ElementPtr operator[]( sal_uLong ) const;
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void ForEach( FnForEach fn, void* pArgs = NULL )
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{
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ForEach( 0, nSize, fn, pArgs );
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}
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void ForEach( sal_uLong nStart, sal_uLong nEnd, FnForEach fn, void* pArgs = NULL );
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};
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inline sal_uLong BigPtrEntry::GetPos() const
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{
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assert(this == pBlock->pData[ nOffset ]); // element not in the block
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return pBlock->nStart + nOffset;
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}
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inline BigPtrArray& BigPtrEntry::GetArray() const
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{
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return *pBlock->pBigArr;
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}
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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