From 267c6f2ac71f92999e969232431ba04678e7437e Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 15 Apr 2024 07:54:39 +0200 Subject: Adding upstream version 4:24.2.0. Signed-off-by: Daniel Baumann --- sw/inc/bparr.hxx | 108 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 108 insertions(+) create mode 100644 sw/inc/bparr.hxx (limited to 'sw/inc/bparr.hxx') diff --git a/sw/inc/bparr.hxx b/sw/inc/bparr.hxx new file mode 100644 index 0000000000..e59cb2c0b6 --- /dev/null +++ b/sw/inc/bparr.hxx @@ -0,0 +1,108 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * 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 . + */ + +#pragma once + +#include + +#include "swdllapi.h" +#include +#include + +struct BlockInfo; +class BigPtrArray; + +class BigPtrEntry +{ + friend class BigPtrArray; + BlockInfo* m_pBlock; + sal_uInt16 m_nOffset; +public: + BigPtrEntry() : m_pBlock(nullptr), m_nOffset(0) {} + BigPtrEntry(BigPtrEntry const &) = default; + virtual ~BigPtrEntry() = default; + BigPtrEntry & operator =(BigPtrEntry const &) = default; + + inline sal_Int32 GetPos() const; + inline BigPtrArray& GetArray() const; +}; + +// 1000 entries per Block = a bit less than 4K +#define MAXENTRY 1000 + +// number of entries that may remain free during compression +// this value is for the worst case; because we defined MAXBLOCK with ca 25% +// overhead, 80% = 800 entries are enough +// if complete compression is desired, 100 has to be specified +#define COMPRESSLVL 80 + +struct BlockInfo final +{ + BigPtrArray* pBigArr; ///< in this array the block is located + sal_Int32 nStart, nEnd; ///< start- and end index + sal_uInt16 nElem; ///< number of elements + std::array + mvData; ///< data block +}; + +class SW_DLLPUBLIC BigPtrArray +{ +protected: + std::unique_ptr + m_ppInf; ///< block info + sal_Int32 m_nSize; ///< number of elements + sal_uInt16 m_nMaxBlock; ///< current max. number of blocks + sal_uInt16 m_nBlock; ///< number of blocks + mutable + sal_uInt16 m_nCur; ///< last used block + + sal_uInt16 Index2Block( sal_Int32 ) const; ///< block search + BlockInfo* InsBlock( sal_uInt16 ); ///< insert block + void BlockDel( sal_uInt16 ); ///< some blocks were deleted + void UpdIndex( sal_uInt16 ); ///< recalculate indices + + // fill all blocks + sal_uInt16 Compress(); + +public: + BigPtrArray(); + ~BigPtrArray(); + + sal_Int32 Count() const { return m_nSize; } + + void Insert( BigPtrEntry* p, sal_Int32 pos ); + void Remove( sal_Int32 pos, sal_Int32 n = 1 ); + void Move( sal_Int32 from, sal_Int32 to ); + void Replace( sal_Int32 pos, BigPtrEntry* p); + + BigPtrEntry* operator[]( sal_Int32 ) const; +}; + +inline sal_Int32 BigPtrEntry::GetPos() const +{ + assert(this == m_pBlock->mvData[ m_nOffset ]); // element not in the block + return m_pBlock->nStart + m_nOffset; +} + +inline BigPtrArray& BigPtrEntry::GetArray() const +{ + return *m_pBlock->pBigArr; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ -- cgit v1.2.3