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/* -*- 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 "global.hxx"
#include "attrib.hxx"
#include "patattr.hxx"

#include <algorithm>
#include <memory>

#include <svl/itemset.hxx>

class ScDocument;
class ScEditDataArray;
class ScMarkArray;
class ScStyleSheet;
class ScFlatBoolRowSegments;

class SfxItemPoolCache;
class SfxStyleSheetBase;
class SvxBoxItem;
class SvxBoxInfoItem;

namespace editeng { class SvxBorderLine; }

#define SC_LINE_EMPTY           0
#define SC_LINE_SET             1
#define SC_LINE_DONTCARE        2

#define SC_ATTRARRAY_DELTA      4

#define DEBUG_SC_TESTATTRARRAY 0

struct ScLineFlags
{
    sal_uInt8   nLeft;
    sal_uInt8   nRight;
    sal_uInt8   nTop;
    sal_uInt8   nBottom;
    sal_uInt8   nHori;
    sal_uInt8   nVert;

    ScLineFlags() : nLeft(SC_LINE_EMPTY),nRight(SC_LINE_EMPTY),nTop(SC_LINE_EMPTY),
                    nBottom(SC_LINE_EMPTY),nHori(SC_LINE_EMPTY),nVert(SC_LINE_EMPTY) {}
};

struct ScMergePatternState
{
    std::unique_ptr<SfxItemSet> pItemSet;
    const ScPatternAttr* pOld1;     ///< existing objects, temporary
    const ScPatternAttr* pOld2;

    bool mbValidPatternId;
    sal_uInt64 mnPatternId;

    ScMergePatternState() : pOld1(nullptr), pOld2(nullptr),
                        mbValidPatternId(true), mnPatternId(0) {}
};

// we store an array of these where the pattern applies to all rows up till nEndRow
struct ScAttrEntry
{
    SCROW                   nEndRow;
    const ScPatternAttr*    pPattern;
};

class ScAttrArray
{
private:
    SCCOL           nCol;
    SCTAB           nTab;
    ScDocument&     rDocument;

    std::vector<ScAttrEntry> mvData;

friend class ScDocument;                // for FillInfo
friend class ScDocumentIterator;
friend class ScAttrIterator;
friend class ScHorizontalAttrIterator;

    bool    ApplyFrame( const SvxBoxItem* pLineOuter, const SvxBoxInfoItem* pLineInner,
                            SCROW nStartRow, SCROW nEndRow,
                            bool bLeft, SCCOL nDistRight, bool bTop, SCROW nDistBottom );

    void RemoveCellCharAttribs( SCROW nStartRow, SCROW nEndRow,
                              const ScPatternAttr* pPattern, ScEditDataArray* pDataArray );
    void SetDefaultIfNotInit( SCSIZE nNeeded = 1 );
    bool HasAttrib_Impl(const ScPatternAttr* pPattern, HasAttrFlags nMask, SCROW nRow1, SCROW nRow2, SCSIZE i) const;

    ScAttrArray(const ScAttrArray&) = delete;
    ScAttrArray& operator=(const ScAttrArray&) = delete;

public:
            ScAttrArray( SCCOL nNewCol, SCTAB nNewTab, ScDocument& rDoc, ScAttrArray* pNextColAttrArray );
            ~ScAttrArray();

    ScDocument& GetDoc() { return rDocument; }
    void    SetTab(SCTAB nNewTab)   { nTab = nNewTab; }
    void    SetCol(SCCOL nNewCol)   { nCol = nNewCol; }
#if DEBUG_SC_TESTATTRARRAY
    void    TestData() const;
#endif
    void    Reset( const ScPatternAttr* pPattern);
    bool    Concat(SCSIZE nPos);

    const ScPatternAttr* GetPattern( SCROW nRow ) const;

    /** Returns if you search for attributes at nRow the range from rStartRow
        to rEndRow where that attribute combination (ScPatternAttr) is applied.
        The next ScPatternAttr different from this one starts at rEndRow+1
        (if that is <= MAXROW).
     */
    const ScPatternAttr* GetPatternRange( SCROW& rStartRow, SCROW& rEndRow, SCROW nRow ) const;

    void    MergePatternArea( SCROW nStartRow, SCROW nEndRow, ScMergePatternState& rState, bool bDeep ) const;

    void    MergeBlockFrame( SvxBoxItem* pLineOuter, SvxBoxInfoItem* pLineInner, ScLineFlags& rFlags,
                            SCROW nStartRow, SCROW nEndRow, bool bLeft, SCCOL nDistRight ) const;
    void    ApplyBlockFrame(const SvxBoxItem& rLineOuter, const SvxBoxInfoItem* pLineInner,
                            SCROW nStartRow, SCROW nEndRow, bool bLeft, SCCOL nDistRight);

    void    SetPattern( SCROW nRow, const ScPatternAttr* pPattern, bool bPutToPool = false )
    { SetPatternAreaImpl(nRow, nRow, pPattern, bPutToPool, nullptr, /*bPassingOwnership*/false); }
    const ScPatternAttr* SetPattern( SCROW nRow, std::unique_ptr<ScPatternAttr> pPattern, bool bPutToPool = false )
    { return SetPatternAreaImpl(nRow, nRow, pPattern.release(), bPutToPool, nullptr, /*bPassingOwnership*/true); }
    void    SetPatternArea( SCROW nStartRow, SCROW nEndRow, std::unique_ptr<ScPatternAttr> pPattern,
                            bool bPutToPool = false, ScEditDataArray* pDataArray = nullptr)
    { SetPatternAreaImpl(nStartRow, nEndRow, pPattern.release(), bPutToPool, pDataArray, /*bPassingOwnership*/true); }
    void    SetPatternArea( SCROW nStartRow, SCROW nEndRow, const ScPatternAttr* pPattern,
                            bool bPutToPool = false, ScEditDataArray* pDataArray = nullptr)
    { SetPatternAreaImpl(nStartRow, nEndRow, pPattern, bPutToPool, pDataArray, /*bPassingOwnership*/false); }
    void    ApplyStyleArea( SCROW nStartRow, SCROW nEndRow, const ScStyleSheet& rStyle );
    void    ApplyCacheArea( SCROW nStartRow, SCROW nEndRow, SfxItemPoolCache* pCache,
                            ScEditDataArray* pDataArray = nullptr, bool* const pIsChanged = nullptr );
    void    SetAttrEntries(std::vector<ScAttrEntry> && vNewData);
    void    ApplyLineStyleArea( SCROW nStartRow, SCROW nEndRow,
                                const ::editeng::SvxBorderLine* pLine, bool bColorOnly );

    void    AddCondFormat( SCROW nStartRow, SCROW nEndRow, sal_uInt32 nIndex );
    /// if nIndex == 0, remove all conditional format data
    void    RemoveCondFormat( SCROW nStartRow, SCROW nEndRow, sal_uInt32 nIndex );

    void    ClearItems( SCROW nStartRow, SCROW nEndRow, const sal_uInt16* pWhich );
    void    ChangeIndent( SCROW nStartRow, SCROW nEndRow, bool bIncrement );

            /// Including current, may return -1
    SCROW  GetNextUnprotected( SCROW nRow, bool bUp ) const;

            /// May return -1 if not found
    SCROW SearchStyle(
        SCROW nRow, const ScStyleSheet* pSearchStyle, bool bUp,
        const ScMarkArray* pMarkArray = nullptr) const;

    bool SearchStyleRange(
        SCROW& rRow, SCROW& rEndRow, const ScStyleSheet* pSearchStyle, bool bUp,
        const ScMarkArray* pMarkArray = nullptr) const;

    bool    ApplyFlags( SCROW nStartRow, SCROW nEndRow, ScMF nFlags );
    bool    RemoveFlags( SCROW nStartRow, SCROW nEndRow, ScMF nFlags );

    bool    Search( SCROW nRow, SCSIZE& nIndex ) const;

    bool    HasAttrib( SCROW nRow1, SCROW nRow2, HasAttrFlags nMask ) const;
    bool    IsMerged( SCROW nRow ) const;
    bool    ExtendMerge( SCCOL nThisCol, SCROW nStartRow, SCROW nEndRow,
                                SCCOL& rPaintCol, SCROW& rPaintRow,
                                bool bRefresh );
    void    RemoveAreaMerge( SCROW nStartRow, SCROW nEndRow );

    void    FindStyleSheet( const SfxStyleSheetBase* pStyleSheet, ScFlatBoolRowSegments& rUsedRows, bool bReset );
    bool    IsStyleSheetUsed( const ScStyleSheet& rStyle ) const;

    void    SetPatternAreaSafe( SCROW nStartRow, SCROW nEndRow,
                                    const ScPatternAttr* pWantedPattern, bool bDefault );
    void    CopyAreaSafe( SCROW nStartRow, SCROW nEndRow, tools::Long nDy, ScAttrArray& rAttrArray );

    bool    IsEmpty() const;

    bool    GetFirstVisibleAttr( SCROW& rFirstRow ) const;
    bool    GetLastVisibleAttr( SCROW& rLastRow, SCROW nLastData ) const;
    bool    HasVisibleAttrIn( SCROW nStartRow, SCROW nEndRow ) const;
    bool    IsVisibleEqual( const ScAttrArray& rOther,
                            SCROW nStartRow, SCROW nEndRow ) const;
    bool    IsAllEqual( const ScAttrArray& rOther, SCROW nStartRow, SCROW nEndRow ) const;

    bool    TestInsertCol( SCROW nStartRow, SCROW nEndRow) const;
    bool    TestInsertRow( SCSIZE nSize ) const;
    void    InsertRow( SCROW nStartRow, SCSIZE nSize );
    void    DeleteRow( SCROW nStartRow, SCSIZE nSize );
    void    DeleteRange( SCSIZE nStartIndex, SCSIZE nEndIndex );
    void    DeleteArea( SCROW nStartRow, SCROW nEndRow );
    void    MoveTo( SCROW nStartRow, SCROW nEndRow, ScAttrArray& rAttrArray );
    void    CopyArea(
        SCROW nStartRow, SCROW nEndRow, tools::Long nDy, ScAttrArray& rAttrArray, ScMF nStripFlags = ScMF::NONE) const;

    void    DeleteHardAttr( SCROW nStartRow, SCROW nEndRow );

    /* i123909: Pre-calculate needed memory, and pre-reserve enough memory */
    bool    Reserve( SCSIZE nReserve );
    SCSIZE  Count() const { return mvData.size(); }
    SCSIZE  Count( SCROW nRow1, SCROW nRow2 ) const;

private:
    const ScPatternAttr* SetPatternAreaImpl( SCROW nStartRow, SCROW nEndRow, const ScPatternAttr* pPattern,
                            bool bPutToPool = false, ScEditDataArray* pDataArray = nullptr,
                            bool bPassingPatternOwnership = false );
};

//                              Iterator for attributes

class ScAttrIterator
{
    const ScAttrArray*  pArray;
    const ScPatternAttr* pDefPattern;
    SCSIZE              nPos;
    SCROW               nRow;
    SCROW               nEndRow;
public:
    inline              ScAttrIterator( const ScAttrArray* pNewArray, SCROW nStart, SCROW nEnd, const ScPatternAttr* pDefaultPattern );
    inline const ScPatternAttr* Next( SCROW& rTop, SCROW& rBottom );
    inline const ScPatternAttr* Resync( SCROW nRow, SCROW& rTop, SCROW& rBottom );
    SCROW               GetNextRow() const { return nRow; }
};

inline ScAttrIterator::ScAttrIterator( const ScAttrArray* pNewArray, SCROW nStart, SCROW nEnd, const ScPatternAttr* pDefaultPattern ) :
    pArray( pNewArray ),
    pDefPattern( pDefaultPattern ),
    nRow( nStart ),
    nEndRow( nEnd )
{
    if ( pArray->Count() )
    {
        if ( nStart > 0 )
            pArray->Search( nStart, nPos );
        else
            nPos = 0;
    }
    else
        nPos = 0;
}

inline const ScPatternAttr* ScAttrIterator::Next( SCROW& rTop, SCROW& rBottom )
{
    const ScPatternAttr* pRet;
    if ( !pArray->Count() )
    {
        if ( !nPos )
        {
            ++nPos;
            if ( nRow > MAXROW )
                return nullptr;
            rTop = nRow;
            rBottom = std::min( nEndRow, MAXROW );
            nRow = rBottom + 1;
            return pDefPattern;
        }
        return nullptr;
    }

    if ( nPos < pArray->Count() && nRow <= nEndRow )
    {
        rTop = nRow;
        rBottom = std::min( pArray->mvData[nPos].nEndRow, nEndRow );
        pRet = pArray->mvData[nPos].pPattern;
        nRow = rBottom + 1;
        ++nPos;
    }
    else
        pRet = nullptr;
    return pRet;
}

inline const ScPatternAttr* ScAttrIterator::Resync( SCROW nRowP, SCROW& rTop, SCROW& rBottom )
{
    nRow = nRowP;
    if ( !pArray->Count() )
    {
        nPos = 0;
        return Next( rTop, rBottom );
    }
    // Chances are high that the pattern changed on nRowP introduced a span
    // starting right there. Assume that Next() was called so nPos already
    // advanced. Another high chance is that the change extended a previous or
    // next pattern. In all these cases we don't need to search.
    if (3 <= nPos && nPos <= pArray->Count() && pArray->mvData[nPos-3].nEndRow < nRowP &&
            nRowP <= pArray->mvData[nPos-2].nEndRow)
        nPos -= 2;
    else if (2 <= nPos && nPos <= pArray->Count() && pArray->mvData[nPos-2].nEndRow < nRowP &&
            nRowP <= pArray->mvData[nPos-1].nEndRow)
        --nPos;
    else if (pArray->Count() > 0 && nRowP <= pArray->mvData[0].nEndRow)
        nPos = 0;
    else
        pArray->Search( nRowP, nPos );
    return Next( rTop, rBottom);
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */