AccessibleSpreadsheet.cxx

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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 .
 */

#include <AccessibleSpreadsheet.hxx>
#include <AccessibleCell.hxx>
#include <AccessibleDocument.hxx>
#include <tabvwsh.hxx>
#include <document.hxx>
#include <hints.hxx>
#include <scmod.hxx>
#include <markdata.hxx>
#include <gridwin.hxx>

#include <o3tl/safeint.hxx>
#include <unotools/accessiblestatesethelper.hxx>
#include <unotools/accessiblerelationsethelper.hxx>
#include <com/sun/star/accessibility/AccessibleStateType.hpp>
#include <com/sun/star/accessibility/AccessibleEventId.hpp>
#include <com/sun/star/accessibility/AccessibleTableModelChangeType.hpp>
#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
#include <sal/log.hxx>
#include <tools/gen.hxx>
#include <svtools/colorcfg.hxx>
#include <vcl/svapp.hxx>
#include <scresid.hxx>
#include <strings.hrc>

#include <algorithm>

using namespace ::com::sun::star;
using namespace ::com::sun::star::accessibility;

static bool CompMinCol(const std::pair<sal_uInt16,sal_uInt16> & pc1,const std::pair<sal_uInt16,sal_uInt16>  &pc2)
{
    return pc1.first < pc2.first;
}

ScMyAddress ScAccessibleSpreadsheet::CalcScAddressFromRangeList(ScRangeList *pMarkedRanges,sal_Int32 nSelectedChildIndex)
{
    if (pMarkedRanges->size() <= 1)
    {
        ScRange const & rRange = pMarkedRanges->front();
        // MT IA2: Not used.
        // const int nRowNum = rRange.aEnd.Row() - rRange.aStart.Row() + 1;
        const int nColNum = rRange.aEnd.Col() - rRange.aStart.Col() + 1;
        const int nCurCol = nSelectedChildIndex % nColNum;
        const int nCurRow = (nSelectedChildIndex - nCurCol)/nColNum;
        return ScMyAddress(static_cast<SCCOL>(rRange.aStart.Col() + nCurCol), rRange.aStart.Row() + nCurRow, maActiveCell.Tab());
    }
    else
    {
        ScDocument* pDoc= GetDocument(mpViewShell);
        sal_Int32 nMinRow = pDoc->MaxRow();
        sal_Int32 nMaxRow = 0;
        m_vecTempRange.clear();
        size_t nSize = pMarkedRanges->size();
        for (size_t i = 0; i < nSize; ++i)
        {
            ScRange const & rRange = (*pMarkedRanges)[i];
            if (rRange.aStart.Tab() != rRange.aEnd.Tab())
            {
                if ((maActiveCell.Tab() >= rRange.aStart.Tab()) ||
                    maActiveCell.Tab() <= rRange.aEnd.Tab())
                {
                    m_vecTempRange.push_back(rRange);
                    nMinRow = std::min(rRange.aStart.Row(),nMinRow);
                    nMaxRow = std::max(rRange.aEnd.Row(),nMaxRow);
                }
                else
                    SAL_WARN("sc", "Range of wrong table");
            }
            else if(rRange.aStart.Tab() == maActiveCell.Tab())
            {
                m_vecTempRange.push_back(rRange);
                nMinRow = std::min(rRange.aStart.Row(),nMinRow);
                nMaxRow = std::max(rRange.aEnd.Row(),nMaxRow);
            }
            else
                SAL_WARN("sc", "Range of wrong table");
        }
        int nCurrentIndex = 0 ;
        for(sal_Int32 row = nMinRow ; row <= nMaxRow ; ++row)
        {
            m_vecTempCol.clear();
            {
                for (ScRange const & r : m_vecTempRange)
                {
                    if ( row >= r.aStart.Row() && row <= r.aEnd.Row())
                    {
                        m_vecTempCol.emplace_back(r.aStart.Col(),r.aEnd.Col());
                    }
                }
            }
            std::sort(m_vecTempCol.begin(),m_vecTempCol.end(),CompMinCol);
            {
                for(const PAIR_COL &pairCol : m_vecTempCol)
                {
                    sal_uInt16 nCol = pairCol.second - pairCol.first + 1;
                    if (nCol + nCurrentIndex > nSelectedChildIndex)
                    {
                        return ScMyAddress(static_cast<SCCOL>(pairCol.first + nSelectedChildIndex - nCurrentIndex), row, maActiveCell.Tab());
                    }
                    nCurrentIndex += nCol;
                }
            }
        }
    }
    return ScMyAddress(0,0,maActiveCell.Tab());
}

bool ScAccessibleSpreadsheet::CalcScRangeDifferenceMax(const ScRange & rSrc, const ScRange & rDest, int nMax,
                                std::vector<ScMyAddress> &vecRet, int &nSize)
{
    //Src Must be :Src > Dest
    if (rDest.In(rSrc))
    {//Here is Src In Dest,Src <= Dest
        return false;
    }
    if (!rDest.Intersects(rSrc))
    {
        int nCellCount = sal_uInt32(rDest.aEnd.Col() - rDest.aStart.Col() + 1)
            * sal_uInt32(rDest.aEnd.Row() - rDest.aStart.Row() + 1)
            * sal_uInt32(rDest.aEnd.Tab() - rDest.aStart.Tab() + 1);
        if (nCellCount + nSize > nMax)
        {
            return true;
        }
        else if(nCellCount > 0)
        {
            for (sal_Int32 row = rDest.aStart.Row(); row <=  rDest.aEnd.Row();++row)
            {
                for (sal_uInt16 col = rDest.aStart.Col(); col <=  rDest.aEnd.Col();++col)
                {
                    vecRet.emplace_back(col,row,rDest.aStart.Tab());
                }
            }
        }
        return false;
    }
    sal_Int32 nMinRow = rSrc.aStart.Row();
    sal_Int32 nMaxRow = rSrc.aEnd.Row();
    for (; nMinRow <= nMaxRow ; ++nMinRow,--nMaxRow)
    {
        for (sal_uInt16 col = rSrc.aStart.Col(); col <=  rSrc.aEnd.Col();++col)
        {
            if (nSize > nMax)
            {
                return true;
            }
            ScMyAddress cell(col,nMinRow,rSrc.aStart.Tab());
            if(!rDest.In(cell))
            {//In Src ,Not In Dest
                vecRet.push_back(cell);
                ++nSize;
            }
        }
        if (nMinRow != nMaxRow)
        {
            for (sal_uInt16 col = rSrc.aStart.Col(); col <=  rSrc.aEnd.Col();++col)
            {
                if (nSize > nMax)
                {
                    return true;
                }
                ScMyAddress cell(col,nMaxRow,rSrc.aStart.Tab());
                if(!rDest.In(cell))
                {//In Src ,Not In Dest
                    vecRet.push_back(cell);
                    ++nSize;
                }
            }
        }
    }
    return false;
}

//In Src , Not in Dest
bool ScAccessibleSpreadsheet::CalcScRangeListDifferenceMax(ScRangeList *pSrc, ScRangeList *pDest,
                                int nMax, std::vector<ScMyAddress> &vecRet)
{
    if (pSrc == nullptr || pDest == nullptr)
    {
        return false;
    }
    int nSize =0;
    if (pDest->GetCellCount() == 0)//if the Dest Rang List is empty
    {
        if (pSrc->GetCellCount() > o3tl::make_unsigned(nMax))//if the Src Cell count is greater than  nMax
        {
            return true;
        }
        //now the cell count is less than nMax
        vecRet.reserve(10);
        size_t nSrcSize = pSrc->size();
        for (size_t i = 0; i < nSrcSize; ++i)
        {
            ScRange const & rRange = (*pSrc)[i];
            for (sal_Int32 row = rRange.aStart.Row(); row <= rRange.aEnd.Row();++row)
            {
                for (sal_uInt16 col = rRange.aStart.Col(); col <= rRange.aEnd.Col();++col)
                {
                    vecRet.emplace_back(col,row, rRange.aStart.Tab());
                }
            }
        }
        return false;
    }
    //the Dest Rang List is not empty
    vecRet.reserve(10);
    size_t nSizeSrc = pSrc->size();
    for (size_t i = 0; i < nSizeSrc; ++i)
    {
        ScRange const & rRange = (*pSrc)[i];
        size_t nSizeDest = pDest->size();
        for (size_t j = 0; j < nSizeDest; ++j)
        {
            ScRange const & rRangeDest = (*pDest)[j];
            if (CalcScRangeDifferenceMax(rRange,rRangeDest,nMax,vecRet,nSize))
            {
                return true;
            }
        }
    }
    return false;
}

//=====  internal  ============================================================

// FIXME: really unclear why we have an ScAccessibleTableBase with
// only this single sub-class
ScAccessibleSpreadsheet::ScAccessibleSpreadsheet(
        ScAccessibleDocument* pAccDoc,
        ScTabViewShell* pViewShell,
        SCTAB nTab,
        ScSplitPos eSplitPos)
    :
    ScAccessibleTableBase( pAccDoc, GetDocument(pViewShell), ScRange( 0, 0, nTab, GetDocument(pViewShell)->MaxCol(), GetDocument(pViewShell)->MaxRow(), nTab)),
    mbIsSpreadsheet( true ),
    m_bFormulaMode( false ),
    m_bFormulaLastMode( false ),
    m_nMinX(0),m_nMaxX(0),m_nMinY(0),m_nMaxY(0)
{
    ConstructScAccessibleSpreadsheet( pAccDoc, pViewShell, nTab, eSplitPos );
}

ScAccessibleSpreadsheet::ScAccessibleSpreadsheet(
        ScAccessibleSpreadsheet& rParent, const ScRange& rRange ) :
    ScAccessibleTableBase( rParent.mpAccDoc, rParent.mpDoc, rRange),
    mbIsSpreadsheet( false )
{
    ConstructScAccessibleSpreadsheet( rParent.mpAccDoc, rParent.mpViewShell, rParent.mnTab, rParent.meSplitPos );
}

ScAccessibleSpreadsheet::~ScAccessibleSpreadsheet()
{
    mpMarkedRanges.reset();
    if (mpViewShell)
        mpViewShell->RemoveAccessibilityObject(*this);
}

void ScAccessibleSpreadsheet::ConstructScAccessibleSpreadsheet(
    ScAccessibleDocument* pAccDoc,
    ScTabViewShell* pViewShell,
    SCTAB nTab,
    ScSplitPos eSplitPos)
{
    mpViewShell = pViewShell;
    mpMarkedRanges = nullptr;
    mpAccDoc = pAccDoc;
    mpAccCell.clear();
    meSplitPos = eSplitPos;
    mnTab = nTab;
    mbDelIns = false;
    mbIsFocusSend = false;
    if (!mpViewShell)
        return;

    mpViewShell->AddAccessibilityObject(*this);

    const ScViewData& rViewData = mpViewShell->GetViewData();
    maActiveCell = rViewData.GetCurPos();
    mpAccCell = GetAccessibleCellAt(maActiveCell.Row(), maActiveCell.Col());
    ScDocument* pScDoc= GetDocument(mpViewShell);
    if (pScDoc)
    {
        pScDoc->GetName( maActiveCell.Tab(), m_strOldTabName );
    }
}

void SAL_CALL ScAccessibleSpreadsheet::disposing()
{
    SolarMutexGuard aGuard;
    if (mpViewShell)
    {
        mpViewShell->RemoveAccessibilityObject(*this);
        mpViewShell = nullptr;
    }
    mpAccCell.clear();

    ScAccessibleTableBase::disposing();
}

void ScAccessibleSpreadsheet::CompleteSelectionChanged(bool bNewState)
{
    if (IsFormulaMode())
    {
        return ;
    }
    mpMarkedRanges.reset();

    AccessibleEventObject aEvent;
    aEvent.EventId = AccessibleEventId::STATE_CHANGED;
    if (bNewState)
        aEvent.NewValue <<= AccessibleStateType::SELECTED;
    else
        aEvent.OldValue <<= AccessibleStateType::SELECTED;
    aEvent.Source = uno::Reference< XAccessibleContext >(this);

    CommitChange(aEvent);
}

void ScAccessibleSpreadsheet::LostFocus()
{
    AccessibleEventObject aEvent;
    aEvent.EventId = AccessibleEventId::ACTIVE_DESCENDANT_CHANGED;
    aEvent.Source = uno::Reference< XAccessibleContext >(this);
    aEvent.OldValue <<= uno::Reference<XAccessible>(mpAccCell.get());

    CommitChange(aEvent);

    CommitFocusLost();
}

void ScAccessibleSpreadsheet::GotFocus()
{
    CommitFocusGained();
    AccessibleEventObject aEvent;
    aEvent.EventId = AccessibleEventId::ACTIVE_DESCENDANT_CHANGED;
    aEvent.Source = uno::Reference< XAccessibleContext >(this);
    uno::Reference< XAccessible > xNew;
    if (IsFormulaMode())
    {
        if (!m_pAccFormulaCell.is() || !m_bFormulaLastMode)
        {
            ScAddress aFormulaAddr;
            if(!GetFormulaCurrentFocusCell(aFormulaAddr))
            {
                return;
            }
            m_pAccFormulaCell = GetAccessibleCellAt(aFormulaAddr.Row(),aFormulaAddr.Col());
        }
        xNew = m_pAccFormulaCell.get();
    }
    else
    {
        if(mpAccCell->GetCellAddress() == maActiveCell)
        {
            xNew = mpAccCell.get();
        }
        else
        {
            CommitFocusCell(maActiveCell);
            return ;
        }
    }
    aEvent.NewValue <<= xNew;

    CommitChange(aEvent);
}

void ScAccessibleSpreadsheet::BoundingBoxChanged()
{
    AccessibleEventObject aEvent;
    aEvent.EventId = AccessibleEventId::BOUNDRECT_CHANGED;
    aEvent.Source = uno::Reference< XAccessibleContext >(this);

    CommitChange(aEvent);
}

void ScAccessibleSpreadsheet::VisAreaChanged()
{
    AccessibleEventObject aEvent;
    aEvent.EventId = AccessibleEventId::VISIBLE_DATA_CHANGED;
    aEvent.Source = uno::Reference< XAccessibleContext >(this);

    CommitChange(aEvent);
}

    //=====  SfxListener  =====================================================

void ScAccessibleSpreadsheet::Notify( SfxBroadcaster& rBC, const SfxHint& rHint )
{
    if ( dynamic_cast<const ScUpdateRefHint*>(&rHint) )
    {
        const ScUpdateRefHint& rRef = static_cast<const ScUpdateRefHint&>(rHint);
        if (rRef.GetMode() == URM_INSDEL && rRef.GetDz() == 0) //test whether table is inserted or deleted
        {
            if (((rRef.GetRange().aStart.Col() == maRange.aStart.Col()) &&
                (rRef.GetRange().aEnd.Col() == maRange.aEnd.Col())) ||
                ((rRef.GetRange().aStart.Row() == maRange.aStart.Row()) &&
                (rRef.GetRange().aEnd.Row() == maRange.aEnd.Row())))
            {
                // ignore next SfxHintId::ScDataChanged notification
                mbDelIns = true;

                sal_Int16 nId(0);
                SCCOL nX(rRef.GetDx());
                SCROW nY(rRef.GetDy());
                ScRange aRange(rRef.GetRange());
                if ((nX < 0) || (nY < 0))
                {
                    OSL_ENSURE(!((nX < 0) && (nY < 0)), "should not be possible to remove row and column at the same time");
                    nId = AccessibleTableModelChangeType::DELETE;
                    if (nX < 0)
                    {
                        nX = -nX;
                        nY = aRange.aEnd.Row() - aRange.aStart.Row();
                    }
                    else
                    {
                        nY = -nY;
                        nX = aRange.aEnd.Col() - aRange.aStart.Col();
                    }
                }
                else if ((nX > 0) || (nY > 0))
                {
                    OSL_ENSURE(!((nX > 0) && (nY > 0)), "should not be possible to add row and column at the same time");
                    nId = AccessibleTableModelChangeType::INSERT;
                    nX = aRange.aEnd.Col() - aRange.aStart.Col();
                }
                else
                {
                    OSL_FAIL("is it a deletion or an insertion?");
                }

                CommitTableModelChange(rRef.GetRange().aStart.Row(),
                    rRef.GetRange().aStart.Col(),
                    rRef.GetRange().aStart.Row() + nY,
                    rRef.GetRange().aStart.Col() + nX, nId);

                AccessibleEventObject aEvent;
                aEvent.EventId = AccessibleEventId::ACTIVE_DESCENDANT_CHANGED;
                aEvent.Source = uno::Reference< XAccessibleContext >(this);
                aEvent.NewValue <<= uno::Reference<XAccessible>(mpAccCell.get());

                CommitChange(aEvent);
            }
        }
    }
    else
    {
        if (rHint.GetId() == SfxHintId::ScAccCursorChanged)
        {
            if (mpViewShell)
            {
                ScViewData& rViewData = mpViewShell->GetViewData();

                m_bFormulaMode = rViewData.IsRefMode() || SC_MOD()->IsFormulaMode();
                if ( m_bFormulaMode )
                {
                    NotifyRefMode();
                    m_bFormulaLastMode = true;
                    return;
                }
                if (m_bFormulaLastMode)
                {//Last Notify Mode  Is Formula Mode.
                    m_vecFormulaLastMyAddr.clear();
                    RemoveFormulaSelection(true);
                    m_pAccFormulaCell.clear();
                    //Remove All Selection
                }
                m_bFormulaLastMode = m_bFormulaMode;

                AccessibleEventObject aEvent;
                aEvent.Source = uno::Reference< XAccessible >(this);
                ScAddress aNewCell = rViewData.GetCurPos();
                if(aNewCell.Tab() != maActiveCell.Tab())
                {
                    aEvent.EventId = AccessibleEventId::PAGE_CHANGED;
                    ScAccessibleDocument *pAccDoc =
                        static_cast<ScAccessibleDocument*>(getAccessibleParent().get());
                    if(pAccDoc)
                    {
                        pAccDoc->CommitChange(aEvent);
                    }
                }
                bool bNewPosCell = (aNewCell != maActiveCell) || mpViewShell->GetForceFocusOnCurCell(); // #i123629#
                bool bNewPosCellFocus=false;
                if ( bNewPosCell && IsFocused() && aNewCell.Tab() == maActiveCell.Tab() )
                {//single Focus
                    bNewPosCellFocus=true;
                }
                ScMarkData &refScMarkData = rViewData.GetMarkData();
                // MT IA2: Not used
                // int nSelCount = refScMarkData.GetSelectCount();
                bool bIsMark =refScMarkData.IsMarked();
                bool bIsMultMark = refScMarkData.IsMultiMarked();
                bool bNewMarked = refScMarkData.GetTableSelect(aNewCell.Tab()) && ( bIsMark || bIsMultMark );
//              sal_Bool bNewCellSelected = isAccessibleSelected(aNewCell.Row(), aNewCell.Col());
                sal_uInt16 nTab = rViewData.GetTabNo();
                ScRange aMarkRange;
                refScMarkData.GetMarkArea(aMarkRange);
                aEvent.OldValue.clear();
                ScDocument* pDoc= GetDocument(mpViewShell);
                //Mark All
                if ( !bNewPosCellFocus &&
                    (bNewMarked || bIsMark || bIsMultMark ) &&
                    aMarkRange == ScRange( 0,0,nTab, pDoc->MaxCol(),pDoc->MaxRow(),nTab ) )
                {
                    aEvent.EventId = AccessibleEventId::SELECTION_CHANGED_WITHIN;
                    aEvent.NewValue.clear();
                    CommitChange(aEvent);
                    return ;
                }
                if (!mpMarkedRanges)
                {
                    mpMarkedRanges.reset(new ScRangeList());
                }
                refScMarkData.FillRangeListWithMarks(mpMarkedRanges.get(), true);

                //For Whole Col Row
                bool bWholeRow = ::labs(aMarkRange.aStart.Row() - aMarkRange.aEnd.Row()) == pDoc->MaxRow() ;
                bool bWholeCol = ::abs(aMarkRange.aStart.Col() - aMarkRange.aEnd.Col()) == pDoc->MaxCol() ;
                if ((bNewMarked || bIsMark || bIsMultMark ) && (bWholeCol || bWholeRow))
                {
                    if ( aMarkRange != m_aLastWithInMarkRange )
                    {
                        RemoveSelection(refScMarkData);
                        if(bNewPosCell)
                        {
                            CommitFocusCell(aNewCell);
                        }
                        bool bLastIsWholeColRow =
                            (::labs(m_aLastWithInMarkRange.aStart.Row() - m_aLastWithInMarkRange.aEnd.Row()) == pDoc->MaxRow() && bWholeRow) ||
                            (::abs(m_aLastWithInMarkRange.aStart.Col() - m_aLastWithInMarkRange.aEnd.Col()) == pDoc->MaxCol() && bWholeCol);
                        bool bSelSmaller=
                            bLastIsWholeColRow &&
                            !aMarkRange.In(m_aLastWithInMarkRange) &&
                            aMarkRange.Intersects(m_aLastWithInMarkRange);
                        if( !bSelSmaller )
                        {
                            aEvent.EventId = AccessibleEventId::SELECTION_CHANGED_WITHIN;
                            aEvent.NewValue.clear();
                            CommitChange(aEvent);
                        }
                        m_aLastWithInMarkRange = aMarkRange;
                    }
                    return ;
                }
                m_aLastWithInMarkRange = aMarkRange;
                int nNewMarkCount = mpMarkedRanges->GetCellCount();
                bool bSendSingle= (0 == nNewMarkCount) && bNewPosCell;
                if (bSendSingle)
                {
                    RemoveSelection(refScMarkData);
                    if(bNewPosCellFocus)
                    {
                        CommitFocusCell(aNewCell);
                    }
                    uno::Reference< XAccessible > xChild ;
                    if (bNewPosCellFocus)
                    {
                        xChild = mpAccCell.get();
                    }
                    else
                    {
                        mpAccCell = GetAccessibleCellAt(aNewCell.Row(),aNewCell.Col());
                        xChild = mpAccCell.get();

                        maActiveCell = aNewCell;
                        aEvent.EventId = AccessibleEventId::ACTIVE_DESCENDANT_CHANGED_NOFOCUS;
                        aEvent.NewValue <<= xChild;
                        aEvent.OldValue <<= uno::Reference< XAccessible >();
                        CommitChange(aEvent);
                    }
                    aEvent.EventId = AccessibleEventId::SELECTION_CHANGED;
                    aEvent.NewValue <<= xChild;
                    CommitChange(aEvent);
                    OSL_ASSERT(m_mapSelectionSend.count(aNewCell) == 0 );
                    m_mapSelectionSend.emplace(aNewCell,xChild);

                }
                else
                {
                    ScRange aDelRange;
                    bool bIsDel = rViewData.GetDelMark( aDelRange );
                    if ( (!bIsDel || aMarkRange != aDelRange) &&
                        bNewMarked &&
                        nNewMarkCount > 0 &&
                        m_LastMarkedRanges != *mpMarkedRanges )
                    {
                        RemoveSelection(refScMarkData);
                        if(bNewPosCellFocus)
                        {
                            CommitFocusCell(aNewCell);
                        }
                        std::vector<ScMyAddress> vecNew;
                        if(CalcScRangeListDifferenceMax(mpMarkedRanges.get(), &m_LastMarkedRanges,10,vecNew))
                        {
                            aEvent.EventId = AccessibleEventId::SELECTION_CHANGED_WITHIN;
                            aEvent.NewValue.clear();
                            CommitChange(aEvent);
                        }
                        else
                        {
                            for(const auto& rAddr : vecNew)
                            {
                                uno::Reference< XAccessible > xChild = getAccessibleCellAt(rAddr.Row(),rAddr.Col());
                                if (!(bNewPosCellFocus && rAddr == aNewCell) )
                                {
                                    aEvent.EventId = AccessibleEventId::ACTIVE_DESCENDANT_CHANGED_NOFOCUS;
                                    aEvent.NewValue <<= xChild;
                                    CommitChange(aEvent);
                                }
                                aEvent.EventId = AccessibleEventId::SELECTION_CHANGED_ADD;
                                aEvent.NewValue <<= xChild;
                                CommitChange(aEvent);
                                m_mapSelectionSend.emplace(rAddr,xChild);
                            }
                        }
                    }
                }
                if (bNewPosCellFocus && maActiveCell != aNewCell)
                {
                    CommitFocusCell(aNewCell);
                }
                m_LastMarkedRanges = *mpMarkedRanges;
            }
        }
        else if (rHint.GetId() == SfxHintId::ScDataChanged)
        {
            if (!mbDelIns)
                CommitTableModelChange(maRange.aStart.Row(), maRange.aStart.Col(), maRange.aEnd.Row(), maRange.aEnd.Col(), AccessibleTableModelChangeType::UPDATE);
            else
                mbDelIns = false;
            if (mpViewShell)
            {
                ScViewData& rViewData = mpViewShell->GetViewData();
                ScAddress aNewCell = rViewData.GetCurPos();
                if( maActiveCell == aNewCell)
                {
                    ScDocument* pScDoc= GetDocument(mpViewShell);
                    if (pScDoc)
                    {
                        OUString valStr(pScDoc->GetString(aNewCell.Col(),aNewCell.Row(),aNewCell.Tab()));
                        if(m_strCurCellValue != valStr)
                        {
                            AccessibleEventObject aEvent;
                            aEvent.EventId = AccessibleEventId::VALUE_CHANGED;
                            mpAccCell->CommitChange(aEvent);
                            m_strCurCellValue=valStr;
                        }
                        OUString tabName;
                        pScDoc->GetName( maActiveCell.Tab(), tabName );
                        if( m_strOldTabName != tabName )
                        {
                            AccessibleEventObject aEvent;
                            aEvent.EventId = AccessibleEventId::NAME_CHANGED;
                            OUString sOldName(ScResId(STR_ACC_TABLE_NAME));
                            sOldName = sOldName.replaceFirst("%1", m_strOldTabName);
                            aEvent.OldValue <<= sOldName;
                            OUString sNewName(ScResId(STR_ACC_TABLE_NAME));
                            sOldName = sNewName.replaceFirst("%1", tabName);
                            aEvent.NewValue <<= sNewName;
                            CommitChange( aEvent );
                            m_strOldTabName = tabName;
                        }
                    }
                }
            }
        }
        // commented out, because to use a ModelChangeEvent is not the right way
        // at the moment there is no way, but the Java/Gnome Api should be extended sometime
/*          if (mpViewShell)
            {
                Rectangle aNewVisCells(GetVisCells(GetVisArea(mpViewShell, meSplitPos)));

                Rectangle aNewPos(aNewVisCells);

                if (aNewVisCells.IsOver(maVisCells))
                    aNewPos.Union(maVisCells);
                else
                    CommitTableModelChange(maVisCells.Top(), maVisCells.Left(), maVisCells.Bottom(), maVisCells.Right(), AccessibleTableModelChangeType::UPDATE);

                maVisCells = aNewVisCells;

                CommitTableModelChange(aNewPos.Top(), aNewPos.Left(), aNewPos.Bottom(), aNewPos.Right(), AccessibleTableModelChangeType::UPDATE);
            }
        }*/
    }

    ScAccessibleTableBase::Notify(rBC, rHint);
}

void ScAccessibleSpreadsheet::RemoveSelection(const ScMarkData &refScMarkData)
{
    AccessibleEventObject aEvent;
    aEvent.Source = uno::Reference< XAccessible >(this);
    MAP_ADDR_XACC::iterator miRemove = m_mapSelectionSend.begin();
    for(;  miRemove != m_mapSelectionSend.end() ;)
    {
        if (refScMarkData.IsCellMarked(miRemove->first.Col(),miRemove->first.Row(),true) ||
            refScMarkData.IsCellMarked(miRemove->first.Col(),miRemove->first.Row()) )
        {
            ++miRemove;
            continue;
        }
        aEvent.EventId = AccessibleEventId::SELECTION_CHANGED_REMOVE;
        aEvent.NewValue <<= miRemove->second;
        CommitChange(aEvent);
        miRemove = m_mapSelectionSend.erase(miRemove);
    }
}
void ScAccessibleSpreadsheet::CommitFocusCell(const ScAddress &aNewCell)
{
    OSL_ASSERT(!IsFormulaMode());
    if(IsFormulaMode())
    {
        return ;
    }
    AccessibleEventObject aEvent;
    aEvent.EventId = AccessibleEventId::ACTIVE_DESCENDANT_CHANGED;
    aEvent.Source = uno::Reference< XAccessible >(this);
    aEvent.OldValue <<= uno::Reference<XAccessible>(mpAccCell.get());
    mpAccCell.clear();
    mpAccCell = GetAccessibleCellAt(aNewCell.Row(), aNewCell.Col());
    aEvent.NewValue <<= uno::Reference<XAccessible>(mpAccCell.get());
    maActiveCell = aNewCell;
    ScDocument* pScDoc= GetDocument(mpViewShell);
    if (pScDoc)
    {
        m_strCurCellValue = pScDoc->GetString(maActiveCell.Col(),maActiveCell.Row(),maActiveCell.Tab());
    }
    CommitChange(aEvent);
}

//=====  XAccessibleTable  ================================================

uno::Reference< XAccessibleTable > SAL_CALL ScAccessibleSpreadsheet::getAccessibleRowHeaders(  )
{
    SolarMutexGuard aGuard;
    IsObjectValid();
    uno::Reference< XAccessibleTable > xAccessibleTable;
    if( mpDoc && mbIsSpreadsheet )
    {
        if( const ScRange* pRowRange = mpDoc->GetRepeatRowRange( mnTab ) )
        {
            SCROW nStart = pRowRange->aStart.Row();
            SCROW nEnd = pRowRange->aEnd.Row();
            ScDocument* pDoc = GetDocument(mpViewShell);
            if( (0 <= nStart) && (nStart <= nEnd) && (nEnd <= pDoc->MaxRow()) )
                xAccessibleTable.set( new ScAccessibleSpreadsheet( *this, ScRange( 0, nStart, mnTab, pDoc->MaxCol(), nEnd, mnTab ) ) );
        }
    }
    return xAccessibleTable;
}

uno::Reference< XAccessibleTable > SAL_CALL ScAccessibleSpreadsheet::getAccessibleColumnHeaders(  )
{
    SolarMutexGuard aGuard;
    IsObjectValid();
    uno::Reference< XAccessibleTable > xAccessibleTable;
    if( mpDoc && mbIsSpreadsheet )
    {
        if( const ScRange* pColRange = mpDoc->GetRepeatColRange( mnTab ) )
        {
            SCCOL nStart = pColRange->aStart.Col();
            SCCOL nEnd = pColRange->aEnd.Col();
            ScDocument* pDoc = GetDocument(mpViewShell);
            if( (0 <= nStart) && (nStart <= nEnd) && (nEnd <= pDoc->MaxCol()) )
                xAccessibleTable.set( new ScAccessibleSpreadsheet( *this, ScRange( nStart, 0, mnTab, nEnd, pDoc->MaxRow(), mnTab ) ) );
        }
    }
    return xAccessibleTable;
}

uno::Sequence< sal_Int32 > SAL_CALL ScAccessibleSpreadsheet::getSelectedAccessibleRows(  )
{
    SolarMutexGuard aGuard;
    IsObjectValid();
    uno::Sequence<sal_Int32> aSequence;
    if (IsFormulaMode())
    {
        return aSequence;
    }
    if (mpViewShell)
    {
        aSequence.realloc(maRange.aEnd.Row() - maRange.aStart.Row() + 1);
        const ScMarkData& rMarkdata = mpViewShell->GetViewData().GetMarkData();
        sal_Int32* pSequence = aSequence.getArray();
        sal_Int32 nCount(0);
        for (SCROW i = maRange.aStart.Row(); i <= maRange.aEnd.Row(); ++i)
        {
            if (rMarkdata.IsRowMarked(i))
            {
                pSequence[nCount] = i;
                ++nCount;
            }
        }
        aSequence.realloc(nCount);
    }
    else
        aSequence.realloc(0);
    return aSequence;
}

uno::Sequence< sal_Int32 > SAL_CALL ScAccessibleSpreadsheet::getSelectedAccessibleColumns(  )
{
    SolarMutexGuard aGuard;
    IsObjectValid();
    uno::Sequence<sal_Int32> aSequence;
    if (IsFormulaMode() || !mpViewShell)
        return aSequence;

    aSequence.realloc(maRange.aEnd.Col() - maRange.aStart.Col() + 1);
    sal_Int32* pSequence = aSequence.getArray();
    sal_Int32 nCount(0);
    const ScMarkData& rMarkdata = mpViewShell->GetViewData().GetMarkData();
    for (SCCOL i = maRange.aStart.Col(); i <= maRange.aEnd.Col(); ++i)
    {
        if (rMarkdata.IsColumnMarked(i))
        {
            pSequence[nCount] = i;
            ++nCount;
        }
    }
    aSequence.realloc(nCount);
    return aSequence;
}

sal_Bool SAL_CALL ScAccessibleSpreadsheet::isAccessibleRowSelected( sal_Int32 nRow )
{
    SolarMutexGuard aGuard;
    IsObjectValid();
    if (IsFormulaMode())
    {
        return false;
    }

    if ((nRow > (maRange.aEnd.Row() - maRange.aStart.Row())) || (nRow < 0))
        throw lang::IndexOutOfBoundsException();

    bool bResult(false);
    if (mpViewShell)
    {
        const ScMarkData& rMarkdata = mpViewShell->GetViewData().GetMarkData();
        bResult = rMarkdata.IsRowMarked(static_cast<SCROW>(nRow));
    }
    return bResult;
}

sal_Bool SAL_CALL ScAccessibleSpreadsheet::isAccessibleColumnSelected( sal_Int32 nColumn )
{
    SolarMutexGuard aGuard;
    IsObjectValid();

    if (IsFormulaMode())
    {
        return false;
    }
    if ((nColumn > (maRange.aEnd.Col() - maRange.aStart.Col())) || (nColumn < 0))
        throw lang::IndexOutOfBoundsException();

    bool bResult(false);
    if (mpViewShell)
    {
        const ScMarkData& rMarkdata = mpViewShell->GetViewData().GetMarkData();
        bResult = rMarkdata.IsColumnMarked(static_cast<SCCOL>(nColumn));
    }
    return bResult;
}

rtl::Reference<ScAccessibleCell> ScAccessibleSpreadsheet::GetAccessibleCellAt(sal_Int32 nRow, sal_Int32 nColumn)
{
    if (IsFormulaMode())
    {
        ScAddress aCellAddress(static_cast<SCCOL>(nColumn), nRow, mpViewShell->GetViewData().GetTabNo());
        if ((aCellAddress == m_aFormulaActiveCell) && m_pAccFormulaCell.is())
        {
            return m_pAccFormulaCell;
        }
        else
            return ScAccessibleCell::create(this, mpViewShell, aCellAddress, GetAccessibleIndexFormula(nRow, nColumn), meSplitPos, mpAccDoc);
    }
    else
    {
        ScAddress aCellAddress(static_cast<SCCOL>(maRange.aStart.Col() + nColumn),
            static_cast<SCROW>(maRange.aStart.Row() + nRow), maRange.aStart.Tab());
        if ((aCellAddress == maActiveCell) && mpAccCell.is())
        {
            return mpAccCell;
        }
        else
            return ScAccessibleCell::create(this, mpViewShell, aCellAddress, getAccessibleIndex(nRow, nColumn), meSplitPos, mpAccDoc);
    }
}

uno::Reference< XAccessible > SAL_CALL ScAccessibleSpreadsheet::getAccessibleCellAt( sal_Int32 nRow, sal_Int32 nColumn )
{
    SolarMutexGuard aGuard;
    IsObjectValid();
    if (!IsFormulaMode())
    {
    if (nRow > (maRange.aEnd.Row() - maRange.aStart.Row()) ||
        nRow < 0 ||
        nColumn > (maRange.aEnd.Col() - maRange.aStart.Col()) ||
        nColumn < 0)
        throw lang::IndexOutOfBoundsException();
    }
    rtl::Reference<ScAccessibleCell> pAccessibleCell = GetAccessibleCellAt(nRow, nColumn);
    return pAccessibleCell.get();
}

sal_Bool SAL_CALL ScAccessibleSpreadsheet::isAccessibleSelected( sal_Int32 nRow, sal_Int32 nColumn )
{
    SolarMutexGuard aGuard;
    IsObjectValid();

    if (IsFormulaMode())
    {
        ScAddress addr(static_cast<SCCOL>(nColumn), nRow, 0);
        return IsScAddrFormulaSel(addr);
    }
    if ((nColumn > (maRange.aEnd.Col() - maRange.aStart.Col())) || (nColumn < 0) ||
        (nRow > (maRange.aEnd.Row() - maRange.aStart.Row())) || (nRow < 0))
        throw lang::IndexOutOfBoundsException();

    bool bResult(false);
    if (mpViewShell)
    {
        const ScMarkData& rMarkdata = mpViewShell->GetViewData().GetMarkData();
        bResult = rMarkdata.IsCellMarked(static_cast<SCCOL>(nColumn), static_cast<SCROW>(nRow));
    }
    return bResult;
}

    //=====  XAccessibleComponent  ============================================

uno::Reference< XAccessible > SAL_CALL ScAccessibleSpreadsheet::getAccessibleAtPoint(const awt::Point& rPoint)
{
    uno::Reference< XAccessible > xAccessible;
    if (containsPoint(rPoint))
    {
        SolarMutexGuard aGuard;
        IsObjectValid();
        if (mpViewShell)
        {
            SCCOL nX;
            SCROW nY;
            mpViewShell->GetViewData().GetPosFromPixel( rPoint.X, rPoint.Y, meSplitPos, nX, nY);
            try {
                xAccessible = getAccessibleCellAt(nY, nX);
            }
            catch(const css::lang::IndexOutOfBoundsException &)
            {
                return nullptr;
            }
        }
    }
    return xAccessible;
}

void SAL_CALL ScAccessibleSpreadsheet::grabFocus(  )
{
    if (getAccessibleParent().is())
    {
        uno::Reference<XAccessibleComponent> xAccessibleComponent(getAccessibleParent()->getAccessibleContext(), uno::UNO_QUERY);
        if (xAccessibleComponent.is())
            xAccessibleComponent->grabFocus();
    }
}

sal_Int32 SAL_CALL ScAccessibleSpreadsheet::getForeground(  )
{
    return sal_Int32(COL_BLACK);
}

sal_Int32 SAL_CALL ScAccessibleSpreadsheet::getBackground(  )
{
    SolarMutexGuard aGuard;
    IsObjectValid();
    return sal_Int32(SC_MOD()->GetColorConfig().GetColorValue( ::svtools::DOCCOLOR ).nColor);
}

    //=====  XAccessibleContext  ==============================================

uno::Reference<XAccessibleRelationSet> SAL_CALL ScAccessibleSpreadsheet::getAccessibleRelationSet()
{
    utl::AccessibleRelationSetHelper* pRelationSet = nullptr;
    if(mpAccDoc)
        pRelationSet = mpAccDoc->GetRelationSet(nullptr);
    if (!pRelationSet)
        pRelationSet = new utl::AccessibleRelationSetHelper();
    return pRelationSet;
}

uno::Reference<XAccessibleStateSet> SAL_CALL
    ScAccessibleSpreadsheet::getAccessibleStateSet()
{
    SolarMutexGuard aGuard;
    uno::Reference<XAccessibleStateSet> xParentStates;
    if (getAccessibleParent().is())
    {
        uno::Reference<XAccessibleContext> xParentContext = getAccessibleParent()->getAccessibleContext();
        xParentStates = xParentContext->getAccessibleStateSet();
    }
    utl::AccessibleStateSetHelper* pStateSet = new utl::AccessibleStateSetHelper();
    if (IsDefunc(xParentStates))
        pStateSet->AddState(AccessibleStateType::DEFUNC);
    else
    {
        pStateSet->AddState(AccessibleStateType::MANAGES_DESCENDANTS);
        if (IsEditable())
            pStateSet->AddState(AccessibleStateType::EDITABLE);
        pStateSet->AddState(AccessibleStateType::ENABLED);
        pStateSet->AddState(AccessibleStateType::FOCUSABLE);
        if (IsFocused())
            pStateSet->AddState(AccessibleStateType::FOCUSED);
        pStateSet->AddState(AccessibleStateType::MULTI_SELECTABLE);
        pStateSet->AddState(AccessibleStateType::OPAQUE);
        pStateSet->AddState(AccessibleStateType::SELECTABLE);
        if (IsCompleteSheetSelected())
            pStateSet->AddState(AccessibleStateType::SELECTED);
        if (isShowing())
            pStateSet->AddState(AccessibleStateType::SHOWING);
        if (isVisible())
            pStateSet->AddState(AccessibleStateType::VISIBLE);
    }
    return pStateSet;
}


void SAL_CALL ScAccessibleSpreadsheet::selectAccessibleChild( sal_Int32 nChildIndex )
{
    SolarMutexGuard aGuard;
    IsObjectValid();
    if (nChildIndex < 0 || nChildIndex >= getAccessibleChildCount())
        throw lang::IndexOutOfBoundsException();

    if (mpViewShell)
    {
        sal_Int32 nCol(getAccessibleColumn(nChildIndex));
        sal_Int32 nRow(getAccessibleRow(nChildIndex));

        SelectCell(nRow, nCol, false);
    }
}

void SAL_CALL
        ScAccessibleSpreadsheet::clearAccessibleSelection(  )
{
    SolarMutexGuard aGuard;
    IsObjectValid();
    if (mpViewShell && !IsFormulaMode())
        mpViewShell->Unmark();
}

void SAL_CALL ScAccessibleSpreadsheet::selectAllAccessibleChildren(  )
{
    SolarMutexGuard aGuard;
    IsObjectValid();
    if (!mpViewShell)
        return;

    if (IsFormulaMode())
    {
        ScDocument* pDoc = GetDocument(mpViewShell);
        ScViewData& rViewData = mpViewShell->GetViewData();
        mpViewShell->InitRefMode( 0, 0, rViewData.GetTabNo(), SC_REFTYPE_REF );
        rViewData.SetRefStart(0, 0, rViewData.GetTabNo());
        rViewData.SetRefEnd(pDoc->MaxCol(), pDoc->MaxRow(), rViewData.GetTabNo());
        mpViewShell->UpdateRef(pDoc->MaxCol(), pDoc->MaxRow(), rViewData.GetTabNo());
    }
    else
        mpViewShell->SelectAll();
}

sal_Int32 SAL_CALL
        ScAccessibleSpreadsheet::getSelectedAccessibleChildCount(  )
{
    SolarMutexGuard aGuard;
    IsObjectValid();
    sal_Int32 nResult(0);
    if (mpViewShell)
    {
        if (IsFormulaMode())
        {
            nResult =  GetRowAll() * GetColAll() ;
        }
        else
        {
            if (!mpMarkedRanges)
            {
                mpMarkedRanges.reset(new ScRangeList());
                ScMarkData aMarkData(mpViewShell->GetViewData().GetMarkData());
                aMarkData.FillRangeListWithMarks(mpMarkedRanges.get(), false);
            }
            // is possible, because there shouldn't be overlapped ranges in it
            if (mpMarkedRanges)
                nResult = mpMarkedRanges->GetCellCount();
        }
    }
    return nResult;
}

uno::Reference<XAccessible > SAL_CALL
        ScAccessibleSpreadsheet::getSelectedAccessibleChild( sal_Int32 nSelectedChildIndex )
{
    SolarMutexGuard aGuard;
    IsObjectValid();
    uno::Reference < XAccessible > xAccessible;
    if (IsFormulaMode())
    {
        if(CheckChildIndex(nSelectedChildIndex))
        {
            ScAddress addr = GetChildIndexAddress(nSelectedChildIndex);
            xAccessible = getAccessibleCellAt(addr.Row(), addr.Col());
        }
        return xAccessible;
    }
    if (mpViewShell)
    {
        if (!mpMarkedRanges)
        {
            mpMarkedRanges.reset(new ScRangeList());
            mpViewShell->GetViewData().GetMarkData().FillRangeListWithMarks(mpMarkedRanges.get(), false);
        }
        if (mpMarkedRanges)
        {
            if ((nSelectedChildIndex < 0) ||
                    (mpMarkedRanges->GetCellCount() <= o3tl::make_unsigned(nSelectedChildIndex)))
            {
                throw lang::IndexOutOfBoundsException();
            }
            ScMyAddress addr = CalcScAddressFromRangeList(mpMarkedRanges.get(),nSelectedChildIndex);
            if( m_mapSelectionSend.find(addr) != m_mapSelectionSend.end() )
                xAccessible = m_mapSelectionSend[addr];
            else
                xAccessible = getAccessibleCellAt(addr.Row(), addr.Col());
        }
    }
    return xAccessible;
}

void SAL_CALL ScAccessibleSpreadsheet::deselectAccessibleChild( sal_Int32 nChildIndex )
{
    SolarMutexGuard aGuard;
    IsObjectValid();

    if (nChildIndex < 0 || nChildIndex >= getAccessibleChildCount())
        throw lang::IndexOutOfBoundsException();

    if (!mpViewShell)
        return;

    sal_Int32 nCol(getAccessibleColumn(nChildIndex));
    sal_Int32 nRow(getAccessibleRow(nChildIndex));

    if (IsFormulaMode())
    {
        if(IsScAddrFormulaSel(
            ScAddress(static_cast<SCCOL>(nCol), nRow,mpViewShell->GetViewData().GetTabNo()))
            )
        {
            SelectCell(nRow, nCol, true);
        }
        return ;
    }
    if (mpViewShell->GetViewData().GetMarkData().IsCellMarked(static_cast<SCCOL>(nCol), static_cast<SCROW>(nRow)))
        SelectCell(nRow, nCol, true);
}

void ScAccessibleSpreadsheet::SelectCell(sal_Int32 nRow, sal_Int32 nCol, bool bDeselect)
{
    if (IsFormulaMode())
    {
        if (bDeselect)
        {//??
                return;
        }
        else
        {
            ScViewData& rViewData = mpViewShell->GetViewData();

            mpViewShell->InitRefMode( static_cast<SCCOL>(nCol), nRow, rViewData.GetTabNo(), SC_REFTYPE_REF );
            mpViewShell->UpdateRef(static_cast<SCCOL>(nCol), nRow, rViewData.GetTabNo());
        }
        return ;
    }
    mpViewShell->SetTabNo( maRange.aStart.Tab() );

    mpViewShell->DoneBlockMode( true ); // continue selecting
    mpViewShell->InitBlockMode( static_cast<SCCOL>(nCol), static_cast<SCROW>(nRow), maRange.aStart.Tab(), bDeselect );

    mpViewShell->SelectionChanged();
}

/*
void ScAccessibleSpreadsheet::CreateSortedMarkedCells()
{
    mpSortedMarkedCells = new std::vector<ScMyAddress>();
    mpSortedMarkedCells->reserve(mpMarkedRanges->GetCellCount());
    for ( size_t i = 0, ListSize = mpMarkedRanges->size(); i < ListSize; ++i )
    {
        ScRange* pRange = (*mpMarkedRanges)[i];
        if (pRange->aStart.Tab() != pRange->aEnd.Tab())
        {
            if ((maActiveCell.Tab() >= pRange->aStart.Tab()) ||
                maActiveCell.Tab() <= pRange->aEnd.Tab())
            {
                ScRange aRange(*pRange);
                aRange.aStart.SetTab(maActiveCell.Tab());
                aRange.aEnd.SetTab(maActiveCell.Tab());
                AddMarkedRange(aRange);
            }
            else
            {
                OSL_FAIL("Range of wrong table");
            }
        }
        else if(pRange->aStart.Tab() == maActiveCell.Tab())
            AddMarkedRange(*pRange);
        else
        {
            OSL_FAIL("Range of wrong table");
        }
    }
    std::sort(mpSortedMarkedCells->begin(), mpSortedMarkedCells->end());
}

void ScAccessibleSpreadsheet::AddMarkedRange(const ScRange& rRange)
{
    for (SCROW nRow = rRange.aStart.Row(); nRow <= rRange.aEnd.Row(); ++nRow)
    {
        for (SCCOL nCol = rRange.aStart.Col(); nCol <= rRange.aEnd.Col(); ++nCol)
        {
            ScMyAddress aCell(nCol, nRow, maActiveCell.Tab());
            mpSortedMarkedCells->push_back(aCell);
        }
    }
}*/

    //=====  XServiceInfo  ====================================================

OUString SAL_CALL ScAccessibleSpreadsheet::getImplementationName()
{
    return "ScAccessibleSpreadsheet";
}

uno::Sequence< OUString> SAL_CALL
    ScAccessibleSpreadsheet::getSupportedServiceNames()
{
    uno::Sequence< OUString > aSequence = ScAccessibleTableBase::getSupportedServiceNames();
    sal_Int32 nOldSize(aSequence.getLength());
    aSequence.realloc(nOldSize + 1);

    aSequence[nOldSize] = "com.sun.star.AccessibleSpreadsheet";

    return aSequence;
}

//=====  XTypeProvider  =======================================================

uno::Sequence<sal_Int8> SAL_CALL
    ScAccessibleSpreadsheet::getImplementationId()
{
    return css::uno::Sequence<sal_Int8>();
}


void SAL_CALL ScAccessibleSpreadsheet::addAccessibleEventListener(const uno::Reference<XAccessibleEventListener>& xListener)
{
    SolarMutexGuard aGuard;
    IsObjectValid();
    ScAccessibleTableBase::addAccessibleEventListener(xListener);

}

//====  internal  =========================================================

tools::Rectangle ScAccessibleSpreadsheet::GetBoundingBoxOnScreen() const
{
    tools::Rectangle aRect;
    if (mpViewShell)
    {
        vcl::Window* pWindow = mpViewShell->GetWindowByPos(meSplitPos);
        if (pWindow)
            aRect = pWindow->GetWindowExtentsRelative(nullptr);
    }
    return aRect;
}

tools::Rectangle ScAccessibleSpreadsheet::GetBoundingBox() const
{
    tools::Rectangle aRect;
    if (mpViewShell)
    {
        vcl::Window* pWindow = mpViewShell->GetWindowByPos(meSplitPos);
        if (pWindow)
            //#101986#; extends to the same window, because the parent is the document and it has the same window
            aRect = pWindow->GetWindowExtentsRelative(pWindow);
    }
    return aRect;
}

bool ScAccessibleSpreadsheet::IsDefunc(
    const uno::Reference<XAccessibleStateSet>& rxParentStates)
{
    return ScAccessibleContextBase::IsDefunc() || (mpViewShell == nullptr) || !getAccessibleParent().is() ||
        (rxParentStates.is() && rxParentStates->contains(AccessibleStateType::DEFUNC));
}

bool ScAccessibleSpreadsheet::IsEditable()
{
    if (IsFormulaMode())
    {
        return false;
    }
    bool bProtected(false);
    if (mpDoc && mpDoc->IsTabProtected(maRange.aStart.Tab()))
        bProtected = true;
    return !bProtected;
}

bool ScAccessibleSpreadsheet::IsFocused()
{
    bool bFocused(false);
    if (mpViewShell)
    {
        if (mpViewShell->GetViewData().GetActivePart() == meSplitPos)
            bFocused = mpViewShell->GetActiveWin()->HasFocus();
    }
    return bFocused;
}

bool ScAccessibleSpreadsheet::IsCompleteSheetSelected()
{
    if (IsFormulaMode())
    {
        return false;
    }

    bool bResult(false);
    if(mpViewShell)
    {
        //#103800#; use a copy of MarkData
        ScMarkData aMarkData(mpViewShell->GetViewData().GetMarkData());
        aMarkData.MarkToMulti();
        if (aMarkData.IsAllMarked(maRange))
            bResult = true;
    }
    return bResult;
}

ScDocument* ScAccessibleSpreadsheet::GetDocument(ScTabViewShell* pViewShell)
{
    ScDocument* pDoc = nullptr;
    if (pViewShell)
        pDoc = pViewShell->GetViewData().GetDocument();
    return pDoc;
}

sal_Bool SAL_CALL ScAccessibleSpreadsheet::selectRow( sal_Int32 row )
{
    SolarMutexGuard g;

    if (IsFormulaMode())
    {
        return false;
    }

    ScDocument* pDoc = GetDocument(mpViewShell);
    mpViewShell->SetTabNo( maRange.aStart.Tab() );
    mpViewShell->DoneBlockMode( true ); // continue selecting
    mpViewShell->InitBlockMode( 0, row, maRange.aStart.Tab(), false, false, true );
    mpViewShell->MarkCursor( pDoc->MaxCol(), row, maRange.aStart.Tab(), false, true );
    mpViewShell->SelectionChanged();
    return true;
}

sal_Bool SAL_CALL ScAccessibleSpreadsheet::selectColumn( sal_Int32 column )
{
    SolarMutexGuard g;

    if (IsFormulaMode())
    {
        return false;
    }

    ScDocument* pDoc = GetDocument(mpViewShell);
    mpViewShell->SetTabNo( maRange.aStart.Tab() );
    mpViewShell->DoneBlockMode( true ); // continue selecting
    mpViewShell->InitBlockMode( static_cast<SCCOL>(column), 0, maRange.aStart.Tab(), false, true );
    mpViewShell->MarkCursor( static_cast<SCCOL>(column), pDoc->MaxRow(), maRange.aStart.Tab(), true );
    mpViewShell->SelectionChanged();
    return true;
}

sal_Bool SAL_CALL ScAccessibleSpreadsheet::unselectRow( sal_Int32 row )
{
    SolarMutexGuard g;

    if (IsFormulaMode())
    {
        return false;
    }

    ScDocument* pDoc = GetDocument(mpViewShell);
    mpViewShell->SetTabNo( maRange.aStart.Tab() );
    mpViewShell->DoneBlockMode( true ); // continue selecting
    mpViewShell->InitBlockMode( 0, row, maRange.aStart.Tab(), false, false, true, true );
    mpViewShell->MarkCursor( pDoc->MaxCol(), row, maRange.aStart.Tab(), false, true );
    mpViewShell->SelectionChanged();
    mpViewShell->DoneBlockMode( true );
    return true;
}

sal_Bool SAL_CALL ScAccessibleSpreadsheet::unselectColumn( sal_Int32 column )
{
    SolarMutexGuard g;

    if (IsFormulaMode())
    {
        return false;
    }

    ScDocument* pDoc = GetDocument(mpViewShell);
    mpViewShell->SetTabNo( maRange.aStart.Tab() );
    mpViewShell->DoneBlockMode( true ); // continue selecting
    mpViewShell->InitBlockMode( static_cast<SCCOL>(column), 0, maRange.aStart.Tab(), false, true, false, true );
    mpViewShell->MarkCursor( static_cast<SCCOL>(column), pDoc->MaxRow(), maRange.aStart.Tab(), true );
    mpViewShell->SelectionChanged();
    mpViewShell->DoneBlockMode( true );
    return true;
}

void ScAccessibleSpreadsheet::FireFirstCellFocus()
{
    if (IsFormulaMode())
    {
        return ;
    }
    if (mbIsFocusSend)
    {
        return ;
    }
    mbIsFocusSend = true;
    AccessibleEventObject aEvent;
    aEvent.EventId = AccessibleEventId::ACTIVE_DESCENDANT_CHANGED;
    aEvent.Source = uno::Reference< XAccessible >(this);
    aEvent.NewValue <<= getAccessibleCellAt(maActiveCell.Row(), maActiveCell.Col());
    CommitChange(aEvent);
}

void ScAccessibleSpreadsheet::NotifyRefMode()
{
    ScViewData& rViewData = mpViewShell->GetViewData();
    if (!rViewData.IsRefMode())
        // Not in reference mode. Bail out.
        return;

    sal_uInt16 nRefStartX = rViewData.GetRefStartX();
    sal_Int32 nRefStartY = rViewData.GetRefStartY();
    sal_uInt16 nRefEndX = rViewData.GetRefEndX();
    sal_Int32 nRefEndY = rViewData.GetRefEndY();
    ScAddress aFormulaAddr;
    if(!GetFormulaCurrentFocusCell(aFormulaAddr))
    {
        return ;
    }
    if (m_aFormulaActiveCell != aFormulaAddr)
    {//New Focus
        m_nMinX =std::min(nRefStartX,nRefEndX);
        m_nMaxX =std::max(nRefStartX,nRefEndX);
        m_nMinY = std::min(nRefStartY,nRefEndY);
        m_nMaxY = std::max(nRefStartY,nRefEndY);
        RemoveFormulaSelection();
        AccessibleEventObject aEvent;
        aEvent.Source = uno::Reference< XAccessible >(this);
        aEvent.EventId = AccessibleEventId::ACTIVE_DESCENDANT_CHANGED;
        aEvent.OldValue <<= uno::Reference<XAccessible>(m_pAccFormulaCell.get());
        m_pAccFormulaCell = GetAccessibleCellAt(aFormulaAddr.Row(), aFormulaAddr.Col());
        uno::Reference< XAccessible > xNew = m_pAccFormulaCell.get();
        aEvent.NewValue <<= xNew;
        CommitChange(aEvent);
        if (nRefStartX == nRefEndX && nRefStartY == nRefEndY)
        {//Selection Single
            aEvent.EventId = AccessibleEventId::SELECTION_CHANGED;
            aEvent.NewValue <<= xNew;
            CommitChange(aEvent);
            m_mapFormulaSelectionSend.emplace(aFormulaAddr,xNew);
            m_vecFormulaLastMyAddr.clear();
            m_vecFormulaLastMyAddr.emplace_back(aFormulaAddr);
        }
        else
        {
            std::vector<ScMyAddress> vecCurSel;
            int nCurSize =  (m_nMaxX - m_nMinX +1)*(m_nMaxY - m_nMinY +1) ;
            vecCurSel.reserve(nCurSize);
            for (sal_uInt16 x = m_nMinX ; x <= m_nMaxX ; ++x)
            {
                for (sal_Int32 y = m_nMinY ; y <= m_nMaxY ; ++y)
                {
                    ScMyAddress aAddr(x,y,0);
                    vecCurSel.push_back(aAddr);
                }
            }
            std::sort(vecCurSel.begin(), vecCurSel.end());
            std::vector<ScMyAddress> vecNew;
            std::set_difference(vecCurSel.begin(),vecCurSel.end(),
                m_vecFormulaLastMyAddr.begin(),m_vecFormulaLastMyAddr.end(),
                std::back_insert_iterator(vecNew));
            int nNewSize = vecNew.size();
            if ( nNewSize > 10 )
            {
                aEvent.EventId = AccessibleEventId::SELECTION_CHANGED_WITHIN;
                aEvent.NewValue.clear();
                CommitChange(aEvent);
            }
            else
            {
                for(const auto& rAddr : vecNew)
                {
                    uno::Reference< XAccessible > xChild;
                    if (rAddr == aFormulaAddr)
                    {
                        xChild = m_pAccFormulaCell.get();
                    }
                    else
                    {
                        xChild = getAccessibleCellAt(rAddr.Row(),rAddr.Col());
                        aEvent.EventId = AccessibleEventId::ACTIVE_DESCENDANT_CHANGED_NOFOCUS;
                        aEvent.NewValue <<= xChild;
                        CommitChange(aEvent);
                    }
                    aEvent.EventId = AccessibleEventId::SELECTION_CHANGED_ADD;
                    aEvent.NewValue <<= xChild;
                    CommitChange(aEvent);
                    m_mapFormulaSelectionSend.emplace(rAddr,xChild);
                }
            }
            m_vecFormulaLastMyAddr.swap(vecCurSel);
        }
    }
    m_aFormulaActiveCell = aFormulaAddr;
}

void ScAccessibleSpreadsheet::RemoveFormulaSelection(bool bRemoveAll )
{
    AccessibleEventObject aEvent;
    aEvent.Source = uno::Reference< XAccessible >(this);
    MAP_ADDR_XACC::iterator miRemove = m_mapFormulaSelectionSend.begin();
    for(;  miRemove != m_mapFormulaSelectionSend.end() ;)
    {
        if( !bRemoveAll && IsScAddrFormulaSel(miRemove->first) )
        {
            ++miRemove;
            continue;
        }
        aEvent.EventId = AccessibleEventId::SELECTION_CHANGED_REMOVE;
        aEvent.NewValue <<= miRemove->second;
        CommitChange(aEvent);
        miRemove = m_mapFormulaSelectionSend.erase(miRemove);
    }
}

bool ScAccessibleSpreadsheet::IsScAddrFormulaSel(const ScAddress &addr) const
{
    return addr.Col() >= m_nMinX && addr.Col() <= m_nMaxX &&
        addr.Row() >= m_nMinY && addr.Row() <= m_nMaxY &&
        addr.Tab() == mpViewShell->GetViewData().GetTabNo();
}

bool ScAccessibleSpreadsheet::CheckChildIndex(sal_Int32 nIndex) const
{
    sal_Int32 nMaxIndex = (m_nMaxX - m_nMinX +1)*(m_nMaxY - m_nMinY +1) -1 ;
    return nIndex <= nMaxIndex && nIndex >= 0 ;
}

ScAddress ScAccessibleSpreadsheet::GetChildIndexAddress(sal_Int32 nIndex) const
{
    sal_Int32 nRowAll = GetRowAll();
    sal_uInt16  nColAll = GetColAll();
    if (nIndex < 0 || nIndex >=  nRowAll * nColAll )
    {
        return ScAddress();
    }
    return ScAddress(
        static_cast<SCCOL>((nIndex - nIndex % nRowAll) / nRowAll +  + m_nMinX),
        nIndex % nRowAll + m_nMinY,
        mpViewShell->GetViewData().GetTabNo()
        );
}

sal_Int32 ScAccessibleSpreadsheet::GetAccessibleIndexFormula( sal_Int32 nRow, sal_Int32 nColumn )
{
    sal_uInt16 nColRelative = sal_uInt16(nColumn) - GetColAll();
    sal_Int32 nRowRelative = nRow - GetRowAll();
    if (nRow < 0 || nColumn < 0  || nRowRelative >= GetRowAll() || nColRelative >= GetColAll() )
    {
        return -1;
    }
    return GetRowAll() * nRowRelative + nColRelative;
}

bool ScAccessibleSpreadsheet::IsFormulaMode()
{
    ScViewData& rViewData = mpViewShell->GetViewData();
    m_bFormulaMode = rViewData.IsRefMode() || SC_MOD()->IsFormulaMode();
    return m_bFormulaMode ;
}

bool ScAccessibleSpreadsheet::GetFormulaCurrentFocusCell(ScAddress &addr)
{
    ScViewData& rViewData = mpViewShell->GetViewData();
    sal_uInt16 nRefX=0;
    sal_Int32 nRefY=0;
    if(m_bFormulaLastMode)
    {
        nRefX=rViewData.GetRefEndX();
        nRefY=rViewData.GetRefEndY();
    }
    else
    {
        nRefX=rViewData.GetRefStartX();
        nRefY=rViewData.GetRefStartY();
    }
    ScDocument* pDoc = GetDocument(mpViewShell);
    if( /* Always true: nRefX >= 0 && */ nRefX <= pDoc->MaxCol() && nRefY >= 0 && nRefY <= pDoc->MaxRow())
    {
        addr = ScAddress(nRefX,nRefY,rViewData.GetTabNo());
        return true;
    }
    return false;
}

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