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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef SC_DPCACHETABLE_HXX
#define SC_DPCACHETABLE_HXX
#include "sal/types.h"
#include "osl/mutex.hxx"
#include "global.hxx"
#include "dpitemdata.hxx"
#include "dpmacros.hxx"
#include <vector>
#include <boost/unordered_set.hpp>
#include <boost/shared_ptr.hpp>
#include <mdds/flat_segment_tree.hpp>
class ScDPItemData;
class ScDPCache;
class ScDocument;
class ScRange;
struct ScDPValueData;
struct ScQueryParam;
/**
* This class is only a wrapper to the actual cache, to provide filtering on
* the raw data based on the query filter and/or page field filters.
*/
class SC_DLLPUBLIC ScDPFilteredCache
{
typedef mdds::flat_segment_tree<SCROW, bool> RowFlagType;
public:
/** interface class used for filtering of rows. */
class FilterBase
{
public:
virtual ~FilterBase() {}
/** returns true if the matching condition is met for a single cell
value, or false otherwise. */
virtual bool match( const ScDPItemData& rCellData ) const = 0;
};
/** ordinary single-item filter. */
class SingleFilter : public FilterBase
{
public:
explicit SingleFilter(const ScDPItemData &rItem);
virtual ~SingleFilter() {}
virtual bool match(const ScDPItemData& rCellData) const;
const ScDPItemData& getMatchValue() const;
private:
explicit SingleFilter();
ScDPItemData maItem;
};
/** multi-item (group) filter. */
class GroupFilter : public FilterBase
{
public:
GroupFilter();
virtual ~GroupFilter() {}
virtual bool match(const ScDPItemData& rCellData) const;
void addMatchItem(const ScDPItemData& rItem);
size_t getMatchItemCount() const;
private:
::std::vector<ScDPItemData> maItems;
};
/** single filtering criterion. */
struct Criterion
{
sal_Int32 mnFieldIndex;
::boost::shared_ptr<FilterBase> mpFilter;
Criterion();
};
ScDPFilteredCache(const ScDPCache& rCache);
~ScDPFilteredCache();
sal_Int32 getRowSize() const;
sal_Int32 getColSize() const;
const ScDPCache* getCache() const;
void fillTable(const ScQueryParam& rQuery, bool bIgnoreEmptyRows, bool bRepeatIfEmpty);
void fillTable();
/** Check whether a specified row is active or not. When a row is active,
it is used in calculation of the results data. A row becomes inactive
when it is filtered out by page field. */
bool isRowActive(sal_Int32 nRow, sal_Int32* pLastRow = NULL) const;
/** Set filter on/off flag to each row to control visibility. The caller
must ensure that the table is filled before calling this function. */
void filterByPageDimension(const ::std::vector<Criterion>& rCriteria, const ::boost::unordered_set<sal_Int32>& rRepeatIfEmptyDims);
/** Get the cell instance at specified location within the data grid. Note
that the data grid doesn't include the header row. Don't delete the
returned object! */
const ScDPItemData* getCell(SCCOL nCol, SCROW nRow, bool bRepeatIfEmpty) const;
void getValue( ScDPValueData& rVal, SCCOL nCol, SCROW nRow, bool bRepeatIfEmpty) const;
rtl::OUString getFieldName(SCCOL nIndex) const;
/** Get the unique entries for a field specified by index. The caller must
make sure that the table is filled before calling function, or it will
get an empty collection. */
const ::std::vector<SCROW>& getFieldEntries( sal_Int32 nColumn ) const;
/** Filter the table based on the specified criteria, and copy the
result to rTabData. This method is used, for example, to generate
a drill-down data table. */
void filterTable(const ::std::vector<Criterion>& rCriteria,
::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any > >& rTabData,
const ::boost::unordered_set<sal_Int32>& rRepeatIfEmptyDims);
SCROW getOrder(long nDim, SCROW nIndex) const;
void clear();
bool empty() const;
#if DEBUG_PIVOT_TABLE
void dumpRowFlag(const RowFlagType& rFlag) const;
void dump() const;
#endif
private:
ScDPFilteredCache();
ScDPFilteredCache(const ScDPFilteredCache&);
/**
* Check if a given row meets all specified criteria.
*
* @param nRow index of row to be tested.
* @param rCriteria a list of criteria
*/
bool isRowQualified(sal_Int32 nRow, const ::std::vector<Criterion>& rCriteria, const ::boost::unordered_set<sal_Int32>& rRepeatIfEmptyDims) const;
private:
/** unique field entires for each field (column). */
::std::vector< ::std::vector<SCROW> > maFieldEntries;
/** Rows visible by standard filter query. */
RowFlagType maShowByFilter;
/** Rows visible by page dimension filtering. */
RowFlagType maShowByPage;
const ScDPCache& mrCache;
};
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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