95ceaa5c55
Change-Id: I1d54d16dbe5648a21baa9bf96444e60fcd034c81 Reviewed-on: https://gerrit.libreoffice.org/37457 Tested-by: Jenkins <ci@libreoffice.org> Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
172 lines
5.7 KiB
C++
172 lines
5.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_SC_INC_DPFILTEREDCACHE_HXX
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#define INCLUDED_SC_INC_DPFILTEREDCACHE_HXX
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#include <sal/types.h>
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#include <osl/mutex.hxx>
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#include "global.hxx"
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#include "dpitemdata.hxx"
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#include "calcmacros.hxx"
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#include <memory>
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#include <unordered_set>
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#include <vector>
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#include <mdds/flat_segment_tree.hpp>
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class ScDPItemData;
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class ScDPCache;
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class ScDocument;
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class ScRange;
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struct ScDPValue;
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struct ScQueryParam;
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/**
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* This class is only a wrapper to the actual cache, to provide filtering on
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* the raw data based on the query filter and/or page field filters.
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*/
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class SC_DLLPUBLIC ScDPFilteredCache
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{
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typedef mdds::flat_segment_tree<SCROW, bool> RowFlagType;
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public:
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/** interface class used for filtering of rows. */
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class FilterBase
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{
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public:
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virtual ~FilterBase() {}
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/** returns true if the matching condition is met for a single cell
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value, or false otherwise. */
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virtual bool match( const ScDPItemData& rCellData ) const = 0;
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virtual std::vector<ScDPItemData> getMatchValues() const = 0;
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};
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/** ordinary single-item filter. */
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class SingleFilter : public FilterBase
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{
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public:
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explicit SingleFilter(const ScDPItemData &rItem);
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virtual bool match(const ScDPItemData& rCellData) const override;
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virtual std::vector<ScDPItemData> getMatchValues() const override;
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private:
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ScDPItemData maItem;
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};
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/** multi-item (group) filter. */
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class GroupFilter : public FilterBase
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{
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public:
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GroupFilter();
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virtual bool match(const ScDPItemData& rCellData) const override;
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virtual std::vector<ScDPItemData> getMatchValues() const override;
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void addMatchItem(const ScDPItemData& rItem);
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size_t getMatchItemCount() const;
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private:
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::std::vector<ScDPItemData> maItems;
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};
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/** single filtering criterion. */
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struct Criterion
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{
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sal_Int32 mnFieldIndex;
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std::shared_ptr<FilterBase> mpFilter;
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Criterion();
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};
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ScDPFilteredCache(const ScDPCache& rCache);
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~ScDPFilteredCache();
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sal_Int32 getRowSize() const;
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sal_Int32 getColSize() const;
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const ScDPCache& getCache() const { return mrCache;}
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void fillTable(const ScQueryParam& rQuery, bool bIgnoreEmptyRows, bool bRepeatIfEmpty);
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void fillTable();
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/** Check whether a specified row is active or not. When a row is active,
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it is used in calculation of the results data. A row becomes inactive
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when it is filtered out by page field. */
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bool isRowActive(sal_Int32 nRow, sal_Int32* pLastRow = nullptr) const;
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/** Set filter on/off flag to each row to control visibility. The caller
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must ensure that the table is filled before calling this function. */
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void filterByPageDimension(const std::vector<Criterion>& rCriteria, const std::unordered_set<sal_Int32>& rRepeatIfEmptyDims);
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/** Get the cell instance at specified location within the data grid. Note
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that the data grid doesn't include the header row. Don't delete the
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returned object! */
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const ScDPItemData* getCell(SCCOL nCol, SCROW nRow, bool bRepeatIfEmpty) const;
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void getValue( ScDPValue& rVal, SCCOL nCol, SCROW nRow) const;
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OUString getFieldName(SCCOL nIndex) const;
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/** Get the unique entries for a field specified by index. The caller must
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make sure that the table is filled before calling function, or it will
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get an empty collection. */
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const ::std::vector<SCROW>& getFieldEntries( sal_Int32 nColumn ) const;
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/** Filter the table based on the specified criteria, and copy the
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result to rTabData. This method is used, for example, to generate
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a drill-down data table. */
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void filterTable(const std::vector<Criterion>& rCriteria,
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css::uno::Sequence< css::uno::Sequence< css::uno::Any > >& rTabData,
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const std::unordered_set<sal_Int32>& rRepeatIfEmptyDims);
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void clear();
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bool empty() const;
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#if DUMP_PIVOT_TABLE
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static void dumpRowFlag( const RowFlagType& rFlag );
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void dump() const;
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#endif
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private:
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ScDPFilteredCache(const ScDPFilteredCache&) = delete;
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/**
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* Check if a given row meets all specified criteria.
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*
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* @param nRow index of row to be tested.
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* @param rCriteria a list of criteria
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*/
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bool isRowQualified(sal_Int32 nRow, const ::std::vector<Criterion>& rCriteria, const std::unordered_set<sal_Int32>& rRepeatIfEmptyDims) const;
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private:
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/** unique field entires for each field (column). */
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::std::vector< ::std::vector<SCROW> > maFieldEntries;
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/** Rows visible by standard filter query. */
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RowFlagType maShowByFilter;
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/** Rows visible by page dimension filtering. */
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RowFlagType maShowByPage;
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const ScDPCache& mrCache;
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};
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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