dpfilteredcache.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *
 * 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
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 *   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
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 */
 
#pragma once
 
#include <sal/types.h>
#include "dpitemdata.hxx"
#include "calcmacros.hxx"
#include "types.hxx"
 
#include <unordered_set>
#include <vector>
 
#include <mdds/flat_segment_tree.hpp>
 
namespace com::sun::star::uno
{
class Any;
}
namespace com::sun::star::uno
{
template <typename> class Sequence;
}
 
class ScDPCache;
struct ScDPValue;
struct ScQueryParam;
 
class ScDPFilteredCache
{
    typedef mdds::flat_segment_tree<SCROW, bool> RowFlagType;
 
public:
    class FilterBase
    {
    public:
        virtual ~FilterBase() {}
        virtual bool match(const ScDPItemData& rCellData) const = 0;
 
        virtual std::vector<ScDPItemData> getMatchValues() const = 0;
    };
 
    class SingleFilter final : public FilterBase
    {
    public:
        explicit SingleFilter(const ScDPItemData& rItem);
 
        virtual bool match(const ScDPItemData& rCellData) const override;
        virtual std::vector<ScDPItemData> getMatchValues() const override;
 
    private:
        ScDPItemData maItem;
    };
 
    class GroupFilter final : public FilterBase
    {
    public:
        GroupFilter();
        virtual bool match(const ScDPItemData& rCellData) const override;
        virtual std::vector<ScDPItemData> getMatchValues() const override;
        void addMatchItem(const ScDPItemData& rItem);
        size_t getMatchItemCount() const;
 
    private:
        ::std::vector<ScDPItemData> maItems;
    };
 
    struct Criterion
    {
        sal_Int32 mnFieldIndex;
        std::shared_ptr<FilterBase> mpFilter;
 
        Criterion();
    };
 
    ScDPFilteredCache(const ScDPCache& rCache);
    ~ScDPFilteredCache();
 
    sal_Int32 getRowSize() const;
    sal_Int32 getColSize() const;
 
    const ScDPCache& getCache() const { return mrCache; }
 
    void fillTable(const ScQueryParam& rQuery, bool bIgnoreEmptyRows, bool bRepeatIfEmpty);
 
    void fillTable();
 
    bool isRowActive(sal_Int32 nRow, sal_Int32* pLastRow = nullptr) const;
 
    void filterByPageDimension(const std::vector<Criterion>& rCriteria,
                               const std::unordered_set<sal_Int32>& rRepeatIfEmptyDims);
 
    const ScDPItemData* getCell(SCCOL nCol, SCROW nRow, bool bRepeatIfEmpty) const;
    void getValue(ScDPValue& rVal, SCCOL nCol, SCROW nRow) const;
    OUString getFieldName(SCCOL nIndex) const;
 
    const ::std::vector<SCROW>& getFieldEntries(sal_Int32 nColumn) const;
 
    void filterTable(const std::vector<Criterion>& rCriteria,
                     css::uno::Sequence<css::uno::Sequence<css::uno::Any>>& rTabData,
                     const std::unordered_set<sal_Int32>& rRepeatIfEmptyDims);
 
    void clear();
    bool empty() const;
 
#if DUMP_PIVOT_TABLE
    static void dumpRowFlag(const RowFlagType& rFlag);
    void dump() const;
#endif
 
private:
    ScDPFilteredCache(const ScDPFilteredCache&) = delete;
 
    bool isRowQualified(sal_Int32 nRow, const ::std::vector<Criterion>& rCriteria,
                        const std::unordered_set<sal_Int32>& rRepeatIfEmptyDims) const;
 
private:
    ::std::vector<::std::vector<SCROW>> maFieldEntries;
 
    RowFlagType maShowByFilter;
    RowFlagType maShowByPage;
 
    const ScDPCache& mrCache;
};
 
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