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| -rw-r--r-- | svl/source/inc/poolio.hxx | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/svl/source/inc/poolio.hxx b/svl/source/inc/poolio.hxx new file mode 100644 index 000000000..cc406f31e --- /dev/null +++ b/svl/source/inc/poolio.hxx @@ -0,0 +1,213 @@ +/* -*- 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 . + */ + +#ifndef INCLUDED_SVL_SOURCE_INC_POOLIO_HXX +#define INCLUDED_SVL_SOURCE_INC_POOLIO_HXX + +#include <rtl/ref.hxx> +#include <svl/itempool.hxx> +#include <svl/SfxBroadcaster.hxx> +#include <tools/debug.hxx> +#include <memory> +#include <o3tl/sorted_vector.hxx> +#include <utility> + +class SfxPoolItem; +class SfxItemPoolUser; + +const sal_uInt32 SFX_ITEMS_DEFAULT = 0xfffffffe; + +static bool CompareSortablePoolItems(SfxPoolItem const* lhs, SfxPoolItem const* rhs) +{ + return (*lhs) < (*rhs); +} +/** + * This array contains a set of SfxPoolItems, if those items are + * poolable then each item has a unique set of properties, and we + * often search linearly to ensure uniqueness. If they are + * non-poolable we maintain an (often large) list of pointers. + */ +struct SfxPoolItemArray_Impl +{ +private: + o3tl::sorted_vector<SfxPoolItem*> maPoolItemSet; + // In some cases, e.g. subclasses of NameOrIndex, the parent class (NameOrIndex) is sortable, + // but the subclasses do not define an operator<, which means that we don't get an ordering + // strong enough to enforce uniqueness purely with operator<, which means we need to do + // a partial scan with operator== + std::vector<SfxPoolItem*> maSortablePoolItems; +public: + o3tl::sorted_vector<SfxPoolItem*>::const_iterator begin() const { return maPoolItemSet.begin(); } + o3tl::sorted_vector<SfxPoolItem*>::const_iterator end() const { return maPoolItemSet.end(); } + /// clear array of PoolItem variants after all PoolItems are deleted + /// or all ref counts are decreased + void clear(); + size_t size() const {return maPoolItemSet.size();} + bool empty() const {return maPoolItemSet.empty();} + o3tl::sorted_vector<SfxPoolItem*>::const_iterator find(SfxPoolItem* pItem) const { return maPoolItemSet.find(pItem); } + void insert(SfxPoolItem* pItem) + { + bool bInserted = maPoolItemSet.insert(pItem).second; + assert( bInserted && "duplicate item?" ); + (void)bInserted; + + if (pItem->IsSortable()) + { + // bail early if someone modified one of these things underneath me + assert( std::is_sorted_until(maSortablePoolItems.begin(), maSortablePoolItems.end(), CompareSortablePoolItems) == maSortablePoolItems.end()); + + auto it = std::lower_bound(maSortablePoolItems.begin(), maSortablePoolItems.end(), pItem, CompareSortablePoolItems); + maSortablePoolItems.insert(maSortablePoolItems.begin() + (it - maSortablePoolItems.begin()), pItem); + } + } + const SfxPoolItem* findByLessThan(const SfxPoolItem* pNeedle) const + { + // bail early if someone modified one of these things underneath me + assert( std::is_sorted_until(maSortablePoolItems.begin(), maSortablePoolItems.end(), CompareSortablePoolItems) == maSortablePoolItems.end()); + assert( maPoolItemSet.empty() || maPoolItemSet.front()->IsSortable() ); + + auto it = std::lower_bound(maSortablePoolItems.begin(), maSortablePoolItems.end(), pNeedle, CompareSortablePoolItems); + for (;;) + { + if (it == maSortablePoolItems.end()) + return nullptr; + if (*pNeedle < **it) + return nullptr; + if (*pNeedle == **it) + return *it; + ++it; + } + } + std::vector<const SfxPoolItem*> findSurrogateRange(const SfxPoolItem* pNeedle) const + { + std::vector<const SfxPoolItem*> rv; + if (!maSortablePoolItems.empty()) + { + // bail early if someone modified one of these things underneath me + assert( std::is_sorted_until(maSortablePoolItems.begin(), maSortablePoolItems.end(), CompareSortablePoolItems) == maSortablePoolItems.end()); + + auto range = std::equal_range(maSortablePoolItems.begin(), maSortablePoolItems.end(), pNeedle, CompareSortablePoolItems); + rv.reserve(std::distance(range.first, range.second)); + for (auto it = range.first; it != range.second; ++it) + rv.push_back(*it); + } + else + { + for (const SfxPoolItem* p : maPoolItemSet) + if (*pNeedle == *p) + rv.push_back(p); + } + return rv; + } + void erase(o3tl::sorted_vector<SfxPoolItem*>::const_iterator it) + { + auto pNeedle = *it; + if ((*it)->IsSortable()) + { + // bail early if someone modified one of these things underneath me + assert( std::is_sorted_until(maSortablePoolItems.begin(), maSortablePoolItems.end(), CompareSortablePoolItems) == maSortablePoolItems.end()); + + auto sortIt = std::lower_bound(maSortablePoolItems.begin(), maSortablePoolItems.end(), pNeedle, CompareSortablePoolItems); + for (;;) + { + if (sortIt == maSortablePoolItems.end()) + { + assert(false && "did not find item?"); + break; + } + if (*pNeedle < **sortIt) + { + assert(false && "did not find item?"); + break; + } + // need to compare by pointer here, since we might have duplicates + if (*sortIt == pNeedle) + { + maSortablePoolItems.erase(sortIt); + break; + } + ++sortIt; + } + } + maPoolItemSet.erase(it); + } +}; + +struct SfxItemPool_Impl +{ + SfxBroadcaster aBC; + std::vector<SfxPoolItemArray_Impl> maPoolItemArrays; + OUString aName; + std::vector<SfxPoolItem*> maPoolDefaults; + std::vector<SfxPoolItem*>* mpStaticDefaults; + SfxItemPool* mpMaster; + rtl::Reference<SfxItemPool> mpSecondary; + WhichRangesContainer mpPoolRanges; + sal_uInt16 mnStart; + sal_uInt16 mnEnd; + MapUnit eDefMetric; + + SfxItemPool_Impl( SfxItemPool* pMaster, OUString _aName, sal_uInt16 nStart, sal_uInt16 nEnd ) + : maPoolItemArrays(nEnd - nStart + 1) + , aName(std::move(_aName)) + , maPoolDefaults(nEnd - nStart + 1) + , mpStaticDefaults(nullptr) + , mpMaster(pMaster) + , mnStart(nStart) + , mnEnd(nEnd) + , eDefMetric(MapUnit::MapCM) + { + DBG_ASSERT(mnStart, "Start-Which-Id must be greater 0" ); + } + + ~SfxItemPool_Impl() + { + DeleteItems(); + } + + void DeleteItems() + { + maPoolItemArrays.clear(); + maPoolDefaults.clear(); + mpPoolRanges.reset(); + } + + // unit testing + friend class PoolItemTest; + static SfxItemPool_Impl *GetImpl(SfxItemPool const *pPool) { return pPool->pImpl.get(); } +}; + + +#define SFX_ITEMPOOL_VER_MAJOR sal_uInt8(2) +#define SFX_ITEMPOOL_VER_MINOR sal_uInt8(0) + +#define SFX_ITEMPOOL_TAG_STARTPOOL_4 sal_uInt16(0x1111) +#define SFX_ITEMPOOL_TAG_STARTPOOL_5 sal_uInt16(0xBBBB) +#define SFX_ITEMPOOL_TAG_TRICK4OLD sal_uInt16(0xFFFF) + +#define SFX_ITEMPOOL_REC sal_uInt8(0x01) +#define SFX_ITEMPOOL_REC_HEADER sal_uInt8(0x10) +#define SFX_ITEMPOOL_REC_VERSIONMAP sal_uInt16(0x0020) +#define SFX_ITEMPOOL_REC_WHICHIDS sal_uInt16(0x0030) +#define SFX_ITEMPOOL_REC_ITEMS sal_uInt16(0x0040) +#define SFX_ITEMPOOL_REC_DEFAULTS sal_uInt16(0x0050) + +#endif // INCLUDED_SVL_SOURCE_INC_POOLIO_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |