/* -*- 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 .
 */


// Global header


#include <algorithm>
#include <vcl/window.hxx>
#include <vcl/svapp.hxx>
#include <tools/debug.hxx>
#include <tools/diagnose_ex.h>
#include <sal/log.hxx>
#include <editeng/flditem.hxx>
#include <com/sun/star/uno/Any.hxx>
#include <com/sun/star/uno/Reference.hxx>
#include <com/sun/star/awt/Point.hpp>
#include <com/sun/star/awt/Rectangle.hpp>
#include <com/sun/star/container/XNameContainer.hpp>
#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
#include <com/sun/star/i18n/Boundary.hpp>
#include <com/sun/star/accessibility/AccessibleRole.hpp>
#include <com/sun/star/accessibility/AccessibleTextType.hpp>
#include <com/sun/star/accessibility/AccessibleStateType.hpp>
#include <com/sun/star/accessibility/AccessibleEventId.hpp>
#include <comphelper/accessibleeventnotifier.hxx>
#include <comphelper/sequenceashashmap.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <unotools/accessiblestatesethelper.hxx>
#include <unotools/accessiblerelationsethelper.hxx>
#include <com/sun/star/accessibility/AccessibleRelationType.hpp>
#include <vcl/unohelp.hxx>
#include <vcl/settings.hxx>
#include <i18nlangtag/languagetag.hxx>

#include <editeng/editeng.hxx>
#include <editeng/unoprnms.hxx>
#include <editeng/unoipset.hxx>
#include <editeng/outliner.hxx>
#include <editeng/unoedprx.hxx>
#include <editeng/unoedsrc.hxx>
#include <svl/eitem.hxx>


// Project-local header


#include <com/sun/star/beans/PropertyState.hpp>

#include <unopracc.hxx>
#include <editeng/AccessibleEditableTextPara.hxx>
#include "AccessibleHyperlink.hxx"
#include "AccessibleImageBullet.hxx"

#include <svtools/colorcfg.hxx>
using namespace std;
#include <editeng/editrids.hrc>
#include <editeng/eerdll.hxx>
#include <editeng/numitem.hxx>
#include <memory>

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


// AccessibleEditableTextPara implementation


namespace accessibility
{
    static const SvxItemPropertySet* ImplGetSvxCharAndParaPropertiesSet()
    {
        // PropertyMap for character and paragraph properties
        static const SfxItemPropertyMapEntry aPropMap[] =
        {
            SVX_UNOEDIT_OUTLINER_PROPERTIES,
            SVX_UNOEDIT_CHAR_PROPERTIES,
            SVX_UNOEDIT_PARA_PROPERTIES,
            SVX_UNOEDIT_NUMBERING_PROPERTIE,
            { OUString("TextUserDefinedAttributes"),     EE_CHAR_XMLATTRIBS,     cppu::UnoType<css::container::XNameContainer>::get(),        0,     0},
            { OUString("ParaUserDefinedAttributes"),     EE_PARA_XMLATTRIBS,     cppu::UnoType<css::container::XNameContainer>::get(),        0,     0},
            { OUString(), 0, css::uno::Type(), 0, 0 }
        };
        static SvxItemPropertySet aPropSet( aPropMap, EditEngine::GetGlobalItemPool() );
        return &aPropSet;
    }

    // #i27138# - add parameter <_pParaManager>
    AccessibleEditableTextPara::AccessibleEditableTextPara(
                                const uno::Reference< XAccessible >& rParent,
                                const AccessibleParaManager* _pParaManager )
        : AccessibleTextParaInterfaceBase( m_aMutex ),
          mnParagraphIndex( 0 ),
          mnIndexInParent( 0 ),
          mpEditSource( nullptr ),
          maEEOffset( 0, 0 ),
          mxParent( rParent ),
          // well, that's strictly (UNO) exception safe, though not
          // really robust. We rely on the fact that this member is
          // constructed last, and that the constructor body catches
          // exceptions, thus no chance for exceptions once the Id is
          // fetched. Nevertheless, normally should employ RAII here...
          mnNotifierClientId(::comphelper::AccessibleEventNotifier::registerClient()),
          // #i27138#
          mpParaManager( _pParaManager )
    {

        try
        {
            // Create the state set.
            ::utl::AccessibleStateSetHelper* pStateSet  = new ::utl::AccessibleStateSetHelper ();
            mxStateSet = pStateSet;

            // these are always on
            pStateSet->AddState( AccessibleStateType::MULTI_LINE );
            pStateSet->AddState( AccessibleStateType::FOCUSABLE );
            pStateSet->AddState( AccessibleStateType::VISIBLE );
            pStateSet->AddState( AccessibleStateType::SHOWING );
            pStateSet->AddState( AccessibleStateType::ENABLED );
            pStateSet->AddState( AccessibleStateType::SENSITIVE );
        }
        catch (const uno::Exception&)
        {
        }
    }

    AccessibleEditableTextPara::~AccessibleEditableTextPara()
    {
        // sign off from event notifier
        if( getNotifierClientId() != -1 )
        {
            try
            {
                ::comphelper::AccessibleEventNotifier::revokeClient( getNotifierClientId() );
            }
            catch (const uno::Exception&)
            {
            }
        }
    }

    OUString AccessibleEditableTextPara::implGetText()
    {
        return GetTextRange( 0, GetTextLen() );
    }

    css::lang::Locale AccessibleEditableTextPara::implGetLocale()
    {
        DBG_ASSERT(GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::getLocale: paragraph index value overflow");

        // return locale of first character in the paragraph
        return LanguageTag(GetTextForwarder().GetLanguage( GetParagraphIndex(), 0 )).getLocale();
    }

    void AccessibleEditableTextPara::implGetSelection( sal_Int32& nStartIndex, sal_Int32& nEndIndex )
    {
        sal_Int32 nStart, nEnd;

        if( GetSelection( nStart, nEnd ) )
        {
            nStartIndex = nStart;
            nEndIndex = nEnd;
        }
        else
        {
            // #102234# No exception, just set to 'invalid'
            nStartIndex = -1;
            nEndIndex = -1;
        }
    }

    void AccessibleEditableTextPara::implGetParagraphBoundary( const OUString& rText, css::i18n::Boundary& rBoundary, sal_Int32 /*nIndex*/ )
    {
        SAL_INFO( "editeng", "AccessibleEditableTextPara::implGetParagraphBoundary: only a base implementation, ignoring the index" );

        rBoundary.startPos = 0;
        rBoundary.endPos = rText.getLength();
    }

    void AccessibleEditableTextPara::implGetLineBoundary( const OUString&, css::i18n::Boundary& rBoundary, sal_Int32 nIndex )
    {
        SvxTextForwarder&   rCacheTF = GetTextForwarder();
        const sal_Int32     nParaIndex = GetParagraphIndex();

        DBG_ASSERT(nParaIndex >= 0,
                   "AccessibleEditableTextPara::implGetLineBoundary: paragraph index value overflow");

        const sal_Int32 nTextLen = rCacheTF.GetTextLen( nParaIndex );

        CheckPosition(nIndex);

        rBoundary.startPos = rBoundary.endPos = -1;

        const sal_Int32 nLineCount=rCacheTF.GetLineCount( nParaIndex );

        if( nIndex == nTextLen )
        {
            // #i17014# Special-casing one-behind-the-end character
            if( nLineCount <= 1 )
                rBoundary.startPos = 0;
            else
                rBoundary.startPos = nTextLen - rCacheTF.GetLineLen( nParaIndex,
                                                                     nLineCount-1 );

            rBoundary.endPos = nTextLen;
        }
        else
        {
            // normal line search
            sal_Int32 nLine;
            sal_Int32 nCurIndex;
            for( nLine=0, nCurIndex=0; nLine<nLineCount; ++nLine )
            {
                nCurIndex += rCacheTF.GetLineLen( nParaIndex, nLine);

                if( nCurIndex > nIndex )
                {
                    rBoundary.startPos = nCurIndex - rCacheTF.GetLineLen( nParaIndex, nLine);
                    rBoundary.endPos = nCurIndex;
                    break;
                }
            }
        }
    }


    void AccessibleEditableTextPara::SetIndexInParent( sal_Int32 nIndex )
    {
        mnIndexInParent = nIndex;
    }


    void AccessibleEditableTextPara::SetParagraphIndex( sal_Int32 nIndex )
    {
        sal_Int32 nOldIndex = mnParagraphIndex;

        mnParagraphIndex = nIndex;

        auto aChild( maImageBullet.get() );
        if( aChild.is() )
            aChild->SetParagraphIndex(mnParagraphIndex);

        try
        {
            if( nOldIndex != nIndex )
            {
                uno::Any aOldDesc;
                uno::Any aOldName;

                try
                {
                    aOldDesc <<= getAccessibleDescription();
                    aOldName <<= getAccessibleName();
                }
                catch (const uno::Exception&) // optional behaviour
                {
                }
                // index and therefore description changed
                FireEvent( AccessibleEventId::DESCRIPTION_CHANGED, uno::makeAny( getAccessibleDescription() ), aOldDesc );
                FireEvent( AccessibleEventId::NAME_CHANGED, uno::makeAny( getAccessibleName() ), aOldName );
            }
        }
        catch (const uno::Exception&) // optional behaviour
        {
        }
    }


    void AccessibleEditableTextPara::Dispose()
    {
        int nClientId( getNotifierClientId() );

        // #108212# drop all references before notifying dispose
        mxParent = nullptr;
        mnNotifierClientId = -1;
        mpEditSource = nullptr;

        // notify listeners
        if( nClientId == -1 )
            return;

        try
        {
            uno::Reference < XAccessibleContext > xThis = getAccessibleContext();

            // #106234# Delegate to EventNotifier
            ::comphelper::AccessibleEventNotifier::revokeClientNotifyDisposing( nClientId, xThis );
        }
        catch (const uno::Exception&)
        {
        }
    }

    void AccessibleEditableTextPara::SetEditSource( SvxEditSourceAdapter* pEditSource )
    {
        auto aChild( maImageBullet.get() );
        if( aChild.is() )
            aChild->SetEditSource(pEditSource);

        if( !pEditSource )
        {
            // going defunc
            UnSetState( AccessibleStateType::SHOWING );
            UnSetState( AccessibleStateType::VISIBLE );
            SetState( AccessibleStateType::INVALID );
            SetState( AccessibleStateType::DEFUNC );

            Dispose();
        }
        mpEditSource = pEditSource;
        // #108900# Init last text content
        try
        {
            TextChanged();
        }
        catch (const uno::RuntimeException&)
        {
        }
    }

    ESelection AccessibleEditableTextPara::MakeSelection( sal_Int32 nStartEEIndex, sal_Int32 nEndEEIndex )
    {
        // check overflow
        DBG_ASSERT(nStartEEIndex >= 0 &&
                   nEndEEIndex >= 0 &&
                   GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::MakeSelection: index value overflow");

        sal_Int32 nParaIndex = GetParagraphIndex();
        return ESelection(nParaIndex, nStartEEIndex, nParaIndex, nEndEEIndex);
    }

    ESelection AccessibleEditableTextPara::MakeSelection( sal_Int32 nEEIndex )
    {
        return MakeSelection( nEEIndex, nEEIndex+1 );
    }

    ESelection AccessibleEditableTextPara::MakeCursor( sal_Int32 nEEIndex )
    {
        return MakeSelection( nEEIndex, nEEIndex );
    }

    void AccessibleEditableTextPara::CheckIndex( sal_Int32 nIndex )
    {
        if( nIndex < 0 || nIndex >= getCharacterCount() )
            throw lang::IndexOutOfBoundsException("AccessibleEditableTextPara: character index out of bounds",
                                                  uno::Reference< uno::XInterface >
                                                  ( static_cast< ::cppu::OWeakObject* > (this) ) ); // disambiguate hierarchy
    }

    void AccessibleEditableTextPara::CheckPosition( sal_Int32 nIndex )
    {
        if( nIndex < 0 || nIndex > getCharacterCount() )
            throw lang::IndexOutOfBoundsException("AccessibleEditableTextPara: character position out of bounds",
                                                  uno::Reference< uno::XInterface >
                                                  ( static_cast< ::cppu::OWeakObject* > (this) ) ); // disambiguate hierarchy
    }

    void AccessibleEditableTextPara::CheckRange( sal_Int32 nStart, sal_Int32 nEnd )
    {
        CheckPosition( nStart );
        CheckPosition( nEnd );
    }

    bool AccessibleEditableTextPara::GetSelection(sal_Int32 &nStartPos, sal_Int32 &nEndPos)
    {
        ESelection aSelection;
        sal_Int32 nPara = GetParagraphIndex();
        if( !GetEditViewForwarder().GetSelection( aSelection ) )
            return false;

        if( aSelection.nStartPara < aSelection.nEndPara )
        {
            if( aSelection.nStartPara > nPara ||
                aSelection.nEndPara < nPara )
                return false;

            if( nPara == aSelection.nStartPara )
                nStartPos = aSelection.nStartPos;
            else
                nStartPos = 0;

            if( nPara == aSelection.nEndPara )
                nEndPos = aSelection.nEndPos;
            else
                nEndPos = GetTextLen();
        }
        else
        {
            if( aSelection.nStartPara < nPara ||
                aSelection.nEndPara > nPara )
                return false;

            if( nPara == aSelection.nStartPara )
                nStartPos = aSelection.nStartPos;
            else
                nStartPos = GetTextLen();

            if( nPara == aSelection.nEndPara )
                nEndPos = aSelection.nEndPos;
            else
                nEndPos = 0;
        }

        return true;
    }

    OUString AccessibleEditableTextPara::GetTextRange( sal_Int32 nStartIndex, sal_Int32 nEndIndex )
    {
        return GetTextForwarder().GetText( MakeSelection(nStartIndex, nEndIndex) );
    }

    sal_Int32 AccessibleEditableTextPara::GetTextLen() const
    {
        return GetTextForwarder().GetTextLen(GetParagraphIndex());
    }

    SvxEditSourceAdapter& AccessibleEditableTextPara::GetEditSource() const
    {
        if( !mpEditSource )
            throw uno::RuntimeException("No edit source, object is defunct",
                                        uno::Reference< uno::XInterface >
                                        ( static_cast< ::cppu::OWeakObject* >
                                          ( const_cast< AccessibleEditableTextPara* > (this) ) ) ); // disambiguate hierarchy
        return *mpEditSource;
    }

    SvxAccessibleTextAdapter& AccessibleEditableTextPara::GetTextForwarder() const
    {
        SvxEditSourceAdapter& rEditSource = GetEditSource();
        SvxAccessibleTextAdapter* pTextForwarder = rEditSource.GetTextForwarderAdapter();

        if( !pTextForwarder )
            throw uno::RuntimeException("Unable to fetch text forwarder, object is defunct",
                                        uno::Reference< uno::XInterface >
                                        ( static_cast< ::cppu::OWeakObject* >
                                          ( const_cast< AccessibleEditableTextPara* > (this) ) ) ); // disambiguate hierarchy

        if( !pTextForwarder->IsValid() )
            throw uno::RuntimeException("Text forwarder is invalid, object is defunct",
                                        uno::Reference< uno::XInterface >
                                        ( static_cast< ::cppu::OWeakObject* >
                                          ( const_cast< AccessibleEditableTextPara* > (this) ) ) ); // disambiguate hierarchy
        return *pTextForwarder;
    }

    SvxViewForwarder& AccessibleEditableTextPara::GetViewForwarder() const
    {
        SvxEditSource& rEditSource = GetEditSource();
        SvxViewForwarder* pViewForwarder = rEditSource.GetViewForwarder();

        if( !pViewForwarder )
        {
            throw uno::RuntimeException("Unable to fetch view forwarder, object is defunct",
                                        uno::Reference< uno::XInterface >
                                        ( static_cast< ::cppu::OWeakObject* >
                                          ( const_cast< AccessibleEditableTextPara* > (this) ) ) ); // disambiguate hierarchy
        }

        if( !pViewForwarder->IsValid() )
            throw uno::RuntimeException("View forwarder is invalid, object is defunct",
                                        uno::Reference< uno::XInterface >
                                        ( static_cast< ::cppu::OWeakObject* >
                                          ( const_cast< AccessibleEditableTextPara* > (this) )  ) );    // disambiguate hierarchy
        return *pViewForwarder;
    }

    SvxAccessibleTextEditViewAdapter& AccessibleEditableTextPara::GetEditViewForwarder( bool bCreate ) const
    {
        SvxEditSourceAdapter& rEditSource = GetEditSource();
        SvxAccessibleTextEditViewAdapter* pTextEditViewForwarder = rEditSource.GetEditViewForwarderAdapter( bCreate );

        if( !pTextEditViewForwarder )
        {
            if( bCreate )
                throw uno::RuntimeException("Unable to fetch view forwarder, object is defunct",
                                            uno::Reference< uno::XInterface >
                                            ( static_cast< ::cppu::OWeakObject* >
                                              ( const_cast< AccessibleEditableTextPara* > (this) ) ) ); // disambiguate hierarchy
            else
                throw uno::RuntimeException("No view forwarder, object not in edit mode",
                                            uno::Reference< uno::XInterface >
                                            ( static_cast< ::cppu::OWeakObject* >
                                              ( const_cast< AccessibleEditableTextPara* > (this) ) ) ); // disambiguate hierarchy
        }

        if( pTextEditViewForwarder->IsValid() )
            return *pTextEditViewForwarder;
        else
        {
            if( bCreate )
                throw uno::RuntimeException("View forwarder is invalid, object is defunct",
                                            uno::Reference< uno::XInterface >
                                            ( static_cast< ::cppu::OWeakObject* >
                                              ( const_cast< AccessibleEditableTextPara* > (this) )  ) );    // disambiguate hierarchy
            else
                throw uno::RuntimeException("View forwarder is invalid, object not in edit mode",
                                            uno::Reference< uno::XInterface >
                                            ( static_cast< ::cppu::OWeakObject* >
                                              ( const_cast< AccessibleEditableTextPara* > (this) )  ) );    // disambiguate hierarchy
        }
    }

    bool AccessibleEditableTextPara::HaveEditView() const
    {
        SvxEditSource& rEditSource = GetEditSource();
        SvxEditViewForwarder* pViewForwarder = rEditSource.GetEditViewForwarder();

        if( !pViewForwarder )
            return false;

        if( !pViewForwarder->IsValid() )
            return false;

        return true;
    }

    bool AccessibleEditableTextPara::HaveChildren()
    {
        DBG_ASSERT(GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::HaveChildren: paragraph index value overflow");

        return GetTextForwarder().HaveImageBullet( GetParagraphIndex() );
    }

    tools::Rectangle AccessibleEditableTextPara::LogicToPixel( const tools::Rectangle& rRect, const MapMode& rMapMode, SvxViewForwarder const & rForwarder )
    {
        // convert to screen coordinates
        return tools::Rectangle( rForwarder.LogicToPixel( rRect.TopLeft(), rMapMode ),
                          rForwarder.LogicToPixel( rRect.BottomRight(), rMapMode ) );
    }


    void AccessibleEditableTextPara::SetEEOffset( const Point& rOffset )
    {
        auto aChild( maImageBullet.get() );
        if( aChild.is() )
            aChild->SetEEOffset(rOffset);

        maEEOffset = rOffset;
    }

    void AccessibleEditableTextPara::FireEvent(const sal_Int16 nEventId, const uno::Any& rNewValue, const uno::Any& rOldValue) const
    {
        uno::Reference < XAccessibleContext > xThis( const_cast< AccessibleEditableTextPara* > (this)->getAccessibleContext() );

        AccessibleEventObject aEvent(xThis, nEventId, rNewValue, rOldValue);

        // #102261# Call global queue for focus events
        if( nEventId == AccessibleEventId::STATE_CHANGED )
            vcl::unohelper::NotifyAccessibleStateEventGlobally( aEvent );

        // #106234# Delegate to EventNotifier
        if( getNotifierClientId() != -1 )
            ::comphelper::AccessibleEventNotifier::addEvent( getNotifierClientId(),
                                                             aEvent );
    }

    void AccessibleEditableTextPara::SetState( const sal_Int16 nStateId )
    {
        ::utl::AccessibleStateSetHelper* pStateSet = static_cast< ::utl::AccessibleStateSetHelper*>(mxStateSet.get());
        if( pStateSet != nullptr &&
            !pStateSet->contains(nStateId) )
        {
            pStateSet->AddState( nStateId );
            FireEvent( AccessibleEventId::STATE_CHANGED, uno::makeAny( nStateId ) );
        }
    }

    void AccessibleEditableTextPara::UnSetState( const sal_Int16 nStateId )
    {
        ::utl::AccessibleStateSetHelper* pStateSet = static_cast< ::utl::AccessibleStateSetHelper*>(mxStateSet.get());
        if( pStateSet != nullptr &&
            pStateSet->contains(nStateId) )
        {
            pStateSet->RemoveState( nStateId );
            FireEvent( AccessibleEventId::STATE_CHANGED, uno::Any(), uno::makeAny( nStateId ) );
        }
    }

    void AccessibleEditableTextPara::TextChanged()
    {
        OUString aCurrentString( implGetText() );
        uno::Any aDeleted;
        uno::Any aInserted;
        if( OCommonAccessibleText::implInitTextChangedEvent( maLastTextString, aCurrentString,
                                                             aDeleted, aInserted) )
        {
            FireEvent( AccessibleEventId::TEXT_CHANGED, aInserted, aDeleted );
            maLastTextString = aCurrentString;
        }
    }

    bool AccessibleEditableTextPara::GetAttributeRun( sal_Int32& nStartIndex, sal_Int32& nEndIndex, sal_Int32 nIndex )
    {
        DBG_ASSERT(nIndex >= 0,
                   "AccessibleEditableTextPara::GetAttributeRun: index value overflow");

        DBG_ASSERT(GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::getLocale: paragraph index value overflow");

        return GetTextForwarder().GetAttributeRun( nStartIndex,
                                                   nEndIndex,
                                                   GetParagraphIndex(),
                                                   nIndex );
    }

    uno::Any SAL_CALL AccessibleEditableTextPara::queryInterface (const uno::Type & rType)
    {
        uno::Any aRet;

        // must provide XAccessibleText by hand, since it comes publicly inherited by XAccessibleEditableText
        if ( rType == cppu::UnoType<XAccessibleText>::get())
        {
            uno::Reference< XAccessibleText > aAccText = static_cast< XAccessibleEditableText * >(this);
            aRet <<= aAccText;
        }
        else if ( rType == cppu::UnoType<XAccessibleEditableText>::get())
        {
            uno::Reference< XAccessibleEditableText > aAccEditText = this;
            aRet <<= aAccEditText;
        }
        else if ( rType == cppu::UnoType<XAccessibleHypertext>::get())
        {
            uno::Reference< XAccessibleHypertext > aAccHyperText = this;
            aRet <<= aAccHyperText;
        }
        else
        {
            aRet = AccessibleTextParaInterfaceBase::queryInterface(rType);
        }

        return aRet;
    }

    // XAccessible
    uno::Reference< XAccessibleContext > SAL_CALL AccessibleEditableTextPara::getAccessibleContext()
    {
        // We implement the XAccessibleContext interface in the same object
        return uno::Reference< XAccessibleContext > ( this );
    }

    // XAccessibleContext
    sal_Int32 SAL_CALL AccessibleEditableTextPara::getAccessibleChildCount()
    {
        SolarMutexGuard aGuard;

        return HaveChildren() ? 1 : 0;
    }

    uno::Reference< XAccessible > SAL_CALL AccessibleEditableTextPara::getAccessibleChild( sal_Int32 i )
    {
        SolarMutexGuard aGuard;

        if( !HaveChildren() )
            throw lang::IndexOutOfBoundsException("No children available",
                                                  uno::Reference< uno::XInterface >
                                                  ( static_cast< ::cppu::OWeakObject* > (this) ) ); // static_cast: disambiguate hierarchy

        if( i != 0 )
            throw lang::IndexOutOfBoundsException("Invalid child index",
                                                  uno::Reference< uno::XInterface >
                                                  ( static_cast< ::cppu::OWeakObject* > (this) ) ); // static_cast: disambiguate hierarchy

        auto aChild( maImageBullet.get() );

        if( !aChild.is() )
        {
            // there is no hard reference available, create object then
            aChild = new AccessibleImageBullet(this);

            aChild->SetEditSource( &GetEditSource() );
            aChild->SetParagraphIndex( GetParagraphIndex() );
            aChild->SetIndexInParent( i );

            maImageBullet = aChild;
        }

        return aChild.get();
    }

    uno::Reference< XAccessible > SAL_CALL AccessibleEditableTextPara::getAccessibleParent()
    {
        SAL_WARN_IF(!mxParent.is(), "editeng", "AccessibleEditableTextPara::getAccessibleParent: no frontend set, did somebody forgot to call AccessibleTextHelper::SetEventSource()?");

        return mxParent;
    }

    sal_Int32 SAL_CALL AccessibleEditableTextPara::getAccessibleIndexInParent()
    {
        return mnIndexInParent;
    }

    sal_Int16 SAL_CALL AccessibleEditableTextPara::getAccessibleRole()
    {
        return AccessibleRole::PARAGRAPH;
    }

    OUString SAL_CALL AccessibleEditableTextPara::getAccessibleDescription()
    {
        SolarMutexGuard aGuard;

        // append first 40 characters from text, or first line, if shorter
        // (writer takes first sentence here, but that's not supported
        // from EditEngine)
        // throws if defunc
        OUString aLine;

        if( getCharacterCount() )
            aLine = getTextAtIndex(0, AccessibleTextType::LINE).SegmentText;

        // Get the string from the resource for the specified id.
        OUString sStr(EditResId(RID_SVXSTR_A11Y_PARAGRAPH_DESCRIPTION));
        OUString sParaIndex = OUString::number(GetParagraphIndex());
        sStr = sStr.replaceFirst("$(ARG)", sParaIndex);

        if( aLine.getLength() > MaxDescriptionLen )
        {
            OUString aCurrWord;
            sal_Int32 i;

            // search backward from MaxDescriptionLen for previous word start
            for( aCurrWord=getTextAtIndex(MaxDescriptionLen, AccessibleTextType::WORD).SegmentText,
                     i=MaxDescriptionLen,
                     aLine=OUString();
                 i>=0;
                 --i )
            {
                if( getTextAtIndex(i, AccessibleTextType::WORD).SegmentText != aCurrWord )
                {
                    if( i == 0 )
                        // prevent completely empty string
                        aLine = getTextAtIndex(0, AccessibleTextType::WORD).SegmentText;
                    else
                        aLine = getTextRange(0, i);
                }
            }
        }

        return sStr + aLine;
    }

    OUString SAL_CALL AccessibleEditableTextPara::getAccessibleName()
    {
        //See tdf#101003 before implementing a body
        return OUString();
    }

    uno::Reference< XAccessibleRelationSet > SAL_CALL AccessibleEditableTextPara::getAccessibleRelationSet()
    {
        // #i27138# - provide relations CONTENT_FLOWS_FROM
        // and CONTENT_FLOWS_TO
        if ( mpParaManager )
        {
            utl::AccessibleRelationSetHelper* pAccRelSetHelper =
                                        new utl::AccessibleRelationSetHelper();
            sal_Int32 nMyParaIndex( GetParagraphIndex() );
            // relation CONTENT_FLOWS_FROM
            if ( nMyParaIndex > 0 &&
                 mpParaManager->IsReferencable( nMyParaIndex - 1 ) )
            {
                uno::Sequence<uno::Reference<XInterface> > aSequence
                    { static_cast<cppu::OWeakObject *>(mpParaManager->GetChild( nMyParaIndex - 1 ).first.get().get()) };
                AccessibleRelation aAccRel( AccessibleRelationType::CONTENT_FLOWS_FROM,
                                            aSequence );
                pAccRelSetHelper->AddRelation( aAccRel );
            }

            // relation CONTENT_FLOWS_TO
            if ( (nMyParaIndex + 1) < mpParaManager->GetNum() &&
                 mpParaManager->IsReferencable( nMyParaIndex + 1 ) )
            {
                uno::Sequence<uno::Reference<XInterface> > aSequence
                    { static_cast<cppu::OWeakObject *>(mpParaManager->GetChild( nMyParaIndex + 1 ).first.get().get()) };
                AccessibleRelation aAccRel( AccessibleRelationType::CONTENT_FLOWS_TO,
                                            aSequence );
                pAccRelSetHelper->AddRelation( aAccRel );
            }

            return pAccRelSetHelper;
        }
        else
        {
            // no relations, therefore empty
            return uno::Reference< XAccessibleRelationSet >();
        }
    }

    static uno::Sequence< OUString > const & getAttributeNames()
    {
        static const uno::Sequence<OUString> aNames{
            "CharColor",
            "CharContoured",
            "CharEmphasis",
            "CharEscapement",
            "CharFontName",
            "CharHeight",
            "CharPosture",
            "CharShadowed",
            "CharStrikeout",
            "CharCaseMap",
            "CharUnderline",
            "CharUnderlineColor",
            "CharWeight",
            "NumberingLevel",
            "NumberingRules",
            "ParaAdjust",
            "ParaBottomMargin",
            "ParaFirstLineIndent",
            "ParaLeftMargin",
            "ParaLineSpacing",
            "ParaRightMargin",
            "ParaTabStops"};

        return aNames;
    }

    namespace {

    struct IndexCompare
    {
        const PropertyValue* pValues;
        explicit IndexCompare( const PropertyValue* pVals ) : pValues(pVals) {}
        bool operator() ( sal_Int32 a, sal_Int32 b ) const
        {
            return pValues[a].Name < pValues[b].Name;
        }
    };

    }
}

namespace
{
    OUString GetFieldTypeNameFromField(EFieldInfo const &ree)
    {
        OUString strFldType;
        sal_Int32 nFieldType = -1;
        if (ree.pFieldItem)
        {
            // So we get a field, check its type now.
            nFieldType = ree.pFieldItem->GetField()->GetClassId() ;
        }
        switch (nFieldType)
        {
            case text::textfield::Type::DATE:
            {
                const SvxDateField* pDateField = static_cast< const SvxDateField* >(ree.pFieldItem->GetField());
                if (pDateField)
                {
                    if (pDateField->GetType() == SvxDateType::Fix)
                        strFldType = "date (fixed)";
                    else if (pDateField->GetType() == SvxDateType::Var)
                        strFldType = "date (variable)";
                }
                break;
            }
            case text::textfield::Type::PAGE:
                strFldType = "page-number";
                break;
            //support the sheet name & pages fields
            case text::textfield::Type::PAGES:
                strFldType = "page-count";
                break;
            case text::textfield::Type::TABLE:
                strFldType = "sheet-name";
                break;
            //End
            case text::textfield::Type::TIME:
                strFldType = "time";
                break;
            case text::textfield::Type::EXTENDED_TIME:
            {
                const SvxExtTimeField* pTimeField = static_cast< const SvxExtTimeField* >(ree.pFieldItem->GetField());
                if (pTimeField)
                {
                    if (pTimeField->GetType() == SvxTimeType::Fix)
                        strFldType = "time (fixed)";
                    else if (pTimeField->GetType() == SvxTimeType::Var)
                        strFldType = "time (variable)";
                }
                break;
            }
            case text::textfield::Type::AUTHOR:
                strFldType = "author";
                break;
            case text::textfield::Type::EXTENDED_FILE:
            case text::textfield::Type::DOCINFO_TITLE:
                strFldType = "file name";
                break;
            case text::textfield::Type::DOCINFO_CUSTOM:
                strFldType = "custom document property";
                break;
            default:
                break;
        }
        return strFldType;
    }
}

namespace accessibility
{
    OUString AccessibleEditableTextPara::GetFieldTypeNameAtIndex(sal_Int32 nIndex)
    {
        SvxAccessibleTextAdapter& rCacheTF = GetTextForwarder();
        //For field object info
        sal_Int32 nParaIndex = GetParagraphIndex();
        sal_Int32 nAllFieldLen = 0;
        sal_Int32 nField = rCacheTF.GetFieldCount(nParaIndex);
        for (sal_Int32 j = 0; j < nField; ++j)
        {
            EFieldInfo ree = rCacheTF.GetFieldInfo(nParaIndex, j);
            sal_Int32 reeBegin = ree.aPosition.nIndex + nAllFieldLen;
            sal_Int32 reeEnd = reeBegin + ree.aCurrentText.getLength();
            nAllFieldLen += (ree.aCurrentText.getLength() - 1);
            if (nIndex < reeBegin)
                break;
            if (nIndex < reeEnd)
                return GetFieldTypeNameFromField(ree);
        }
        return OUString();
    }

    uno::Reference< XAccessibleStateSet > SAL_CALL AccessibleEditableTextPara::getAccessibleStateSet()
    {
        SolarMutexGuard aGuard;

        // Create a copy of the state set and return it.
        ::utl::AccessibleStateSetHelper* pStateSet = static_cast< ::utl::AccessibleStateSetHelper*>(mxStateSet.get());

        if( !pStateSet )
            return uno::Reference<XAccessibleStateSet>();
        uno::Reference<XAccessibleStateSet> xParentStates;
        if (getAccessibleParent().is())
        {
            uno::Reference<XAccessibleContext> xParentContext = getAccessibleParent()->getAccessibleContext();
            xParentStates = xParentContext->getAccessibleStateSet();
        }
        if (xParentStates.is() && xParentStates->contains(AccessibleStateType::EDITABLE) )
        {
            pStateSet->AddState(AccessibleStateType::EDITABLE);
        }
        return uno::Reference<XAccessibleStateSet>( new ::utl::AccessibleStateSetHelper (*pStateSet) );
    }

    lang::Locale SAL_CALL AccessibleEditableTextPara::getLocale()
    {
        SolarMutexGuard aGuard;

        return implGetLocale();
    }

    void SAL_CALL AccessibleEditableTextPara::addAccessibleEventListener( const uno::Reference< XAccessibleEventListener >& xListener )
    {
        if( getNotifierClientId() != -1 )
            ::comphelper::AccessibleEventNotifier::addEventListener( getNotifierClientId(), xListener );
    }

    void SAL_CALL AccessibleEditableTextPara::removeAccessibleEventListener( const uno::Reference< XAccessibleEventListener >& xListener )
    {
        if( getNotifierClientId() == -1 )
            return;

        const sal_Int32 nListenerCount = ::comphelper::AccessibleEventNotifier::removeEventListener( getNotifierClientId(), xListener );
        if ( !nListenerCount )
        {
            // no listeners anymore
            // -> revoke ourself. This may lead to the notifier thread dying (if we were the last client),
            // and at least to us not firing any events anymore, in case somebody calls
            // NotifyAccessibleEvent, again
            ::comphelper::AccessibleEventNotifier::TClientId nId( getNotifierClientId() );
            mnNotifierClientId = -1;
            ::comphelper::AccessibleEventNotifier::revokeClient( nId );
        }
    }

    // XAccessibleComponent
    sal_Bool SAL_CALL AccessibleEditableTextPara::containsPoint( const awt::Point& aTmpPoint )
    {
        SolarMutexGuard aGuard;

        DBG_ASSERT(GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::contains: index value overflow");

        awt::Rectangle aTmpRect = getBounds();
        tools::Rectangle aRect( Point(aTmpRect.X, aTmpRect.Y), Size(aTmpRect.Width, aTmpRect.Height) );
        Point aPoint( aTmpPoint.X, aTmpPoint.Y );

        return aRect.IsInside( aPoint );
    }

    uno::Reference< XAccessible > SAL_CALL AccessibleEditableTextPara::getAccessibleAtPoint( const awt::Point& _aPoint )
    {
        SolarMutexGuard aGuard;

        if( HaveChildren() )
        {
            // #103862# No longer need to make given position relative
            Point aPoint( _aPoint.X, _aPoint.Y );

            // respect EditEngine offset to surrounding shape/cell
            aPoint -= GetEEOffset();

            // convert to EditEngine coordinate system
            SvxTextForwarder& rCacheTF = GetTextForwarder();
            Point aLogPoint( GetViewForwarder().PixelToLogic( aPoint, rCacheTF.GetMapMode() ) );

            EBulletInfo aBulletInfo = rCacheTF.GetBulletInfo(GetParagraphIndex());

            if( aBulletInfo.nParagraph != EE_PARA_NOT_FOUND &&
                aBulletInfo.bVisible &&
                aBulletInfo.nType == SVX_NUM_BITMAP )
            {
                tools::Rectangle aRect = aBulletInfo.aBounds;

                if( aRect.IsInside( aLogPoint ) )
                    return getAccessibleChild(0);
            }
        }

        // no children at all, or none at given position
        return uno::Reference< XAccessible >();
    }

    awt::Rectangle SAL_CALL AccessibleEditableTextPara::getBounds()
    {
        SolarMutexGuard aGuard;

        DBG_ASSERT(GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::getBounds: index value overflow");

        SvxTextForwarder& rCacheTF = GetTextForwarder();
        tools::Rectangle aRect = rCacheTF.GetParaBounds( GetParagraphIndex() );

        // convert to screen coordinates
        tools::Rectangle aScreenRect = AccessibleEditableTextPara::LogicToPixel( aRect,
                                                                          rCacheTF.GetMapMode(),
                                                                          GetViewForwarder() );

        // offset from shape/cell
        Point aOffset = GetEEOffset();

        return awt::Rectangle( aScreenRect.Left() + aOffset.X(),
                               aScreenRect.Top() + aOffset.Y(),
                               aScreenRect.GetSize().Width(),
                               aScreenRect.GetSize().Height() );
    }

    awt::Point SAL_CALL AccessibleEditableTextPara::getLocation(  )
    {
        SolarMutexGuard aGuard;

        awt::Rectangle aRect = getBounds();

        return awt::Point( aRect.X, aRect.Y );
    }

    awt::Point SAL_CALL AccessibleEditableTextPara::getLocationOnScreen(  )
    {
        SolarMutexGuard aGuard;

        // relate us to parent
        uno::Reference< XAccessible > xParent = getAccessibleParent();
        if( xParent.is() )
        {
            uno::Reference< XAccessibleComponent > xParentComponent( xParent, uno::UNO_QUERY );
            if( xParentComponent.is() )
            {
                awt::Point aRefPoint = xParentComponent->getLocationOnScreen();
                awt::Point aPoint = getLocation();
                aPoint.X += aRefPoint.X;
                aPoint.Y += aRefPoint.Y;

                return aPoint;
            }
            // #i88070#
            // fallback to parent's <XAccessibleContext> instance
            else
            {
                uno::Reference< XAccessibleContext > xParentContext = xParent->getAccessibleContext();
                if ( xParentContext.is() )
                {
                    uno::Reference< XAccessibleComponent > xParentContextComponent( xParentContext, uno::UNO_QUERY );
                    if( xParentContextComponent.is() )
                    {
                        awt::Point aRefPoint = xParentContextComponent->getLocationOnScreen();
                        awt::Point aPoint = getLocation();
                        aPoint.X += aRefPoint.X;
                        aPoint.Y += aRefPoint.Y;

                        return aPoint;
                    }
                }
            }
        }

        throw uno::RuntimeException("Cannot access parent",
                                    uno::Reference< uno::XInterface >
                                    ( static_cast< XAccessible* > (this) ) );   // disambiguate hierarchy
    }

    awt::Size SAL_CALL AccessibleEditableTextPara::getSize(  )
    {
        SolarMutexGuard aGuard;

        awt::Rectangle aRect = getBounds();

        return awt::Size( aRect.Width, aRect.Height );
    }

    void SAL_CALL AccessibleEditableTextPara::grabFocus(  )
    {
        // set cursor to this paragraph
        setSelection(0,0);
    }

    sal_Int32 SAL_CALL AccessibleEditableTextPara::getForeground(  )
    {
        // #104444# Added to XAccessibleComponent interface
        svtools::ColorConfig aColorConfig;
        Color nColor = aColorConfig.GetColorValue( svtools::FONTCOLOR ).nColor;
        return static_cast<sal_Int32>(nColor);
    }

    sal_Int32 SAL_CALL AccessibleEditableTextPara::getBackground(  )
    {
        // #104444# Added to XAccessibleComponent interface
        Color aColor( Application::GetSettings().GetStyleSettings().GetWindowColor() );

        // the background is transparent
        aColor.SetTransparency( 0xFF);

        return static_cast<sal_Int32>( aColor );
    }

    // XAccessibleText
    sal_Int32 SAL_CALL AccessibleEditableTextPara::getCaretPosition()
    {
        SolarMutexGuard aGuard;

        if( !HaveEditView() )
            return -1;

        ESelection aSelection;
        if( GetEditViewForwarder().GetSelection( aSelection ) &&
            GetParagraphIndex() == aSelection.nEndPara )
        {
            // caret is always nEndPara,nEndPos
            EBulletInfo aBulletInfo = GetTextForwarder().GetBulletInfo(GetParagraphIndex());
            if( aBulletInfo.nParagraph != EE_PARA_NOT_FOUND &&
                aBulletInfo.bVisible &&
                aBulletInfo.nType != SVX_NUM_BITMAP )
            {
                sal_Int32 nBulletLen = aBulletInfo.aText.getLength();
                if( aSelection.nEndPos - nBulletLen >= 0 )
                    return aSelection.nEndPos - nBulletLen;
            }
            return aSelection.nEndPos;
        }

        // not within this paragraph
        return -1;
    }

    sal_Bool SAL_CALL AccessibleEditableTextPara::setCaretPosition( sal_Int32 nIndex )
    {
        return setSelection(nIndex, nIndex);
    }

    sal_Unicode SAL_CALL AccessibleEditableTextPara::getCharacter( sal_Int32 nIndex )
    {
        SolarMutexGuard aGuard;

        DBG_ASSERT(GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::getCharacter: index value overflow");

        return OCommonAccessibleText::implGetCharacter( implGetText(), nIndex );
    }

    uno::Sequence< beans::PropertyValue > SAL_CALL AccessibleEditableTextPara::getCharacterAttributes( sal_Int32 nIndex, const css::uno::Sequence< OUString >& rRequestedAttributes )
    {
        SolarMutexGuard aGuard;

        //Skip the bullet range to ignore the bullet text
        SvxTextForwarder& rCacheTF = GetTextForwarder();
        EBulletInfo aBulletInfo = rCacheTF.GetBulletInfo(GetParagraphIndex());
        if (aBulletInfo.bVisible)
            nIndex += aBulletInfo.aText.getLength();
        CheckIndex(nIndex); // may throw IndexOutOfBoundsException

        bool bSupplementalMode = false;
        uno::Sequence< OUString > aPropertyNames = rRequestedAttributes;
        if (!aPropertyNames.hasElements())
        {
            bSupplementalMode = true;
            aPropertyNames = getAttributeNames();
        }

        // get default attributes...
        ::comphelper::SequenceAsHashMap aPropHashMap( getDefaultAttributes( aPropertyNames ) );

        // ... and override them with the direct attributes from the specific position
        const uno::Sequence< beans::PropertyValue > aRunAttribs( getRunAttributes( nIndex, aPropertyNames ) );
        for (auto const& rRunAttrib : aRunAttribs)
        {
            aPropHashMap[ rRunAttrib.Name ] = rRunAttrib.Value; //!! should not only be the value !!
        }

        // get resulting sequence
        uno::Sequence< beans::PropertyValue > aRes;
        aPropHashMap >> aRes;

        // since SequenceAsHashMap ignores property handles and property state
        // we have to restore the property state here (property handles are
        // of no use to the accessibility API).
        for (beans::PropertyValue & rRes : aRes)
        {
            bool bIsDirectVal = false;
            for (auto const& rRunAttrib : aRunAttribs)
            {
                bIsDirectVal = rRes.Name == rRunAttrib.Name;
                if (bIsDirectVal)
                    break;
            }
            rRes.Handle = -1;
            rRes.State  = bIsDirectVal ? PropertyState_DIRECT_VALUE : PropertyState_DEFAULT_VALUE;
        }
        if( bSupplementalMode )
        {
            _correctValues( aRes );
            // NumberingPrefix
            sal_Int32 nRes = aRes.getLength();
            aRes.realloc( nRes + 1 );
            beans::PropertyValue &rRes = aRes[nRes];
            rRes.Name = "NumberingPrefix";
            OUString numStr;
            if (aBulletInfo.nType != SVX_NUM_CHAR_SPECIAL && aBulletInfo.nType != SVX_NUM_BITMAP)
                numStr = aBulletInfo.aText;
            rRes.Value <<= numStr;
            rRes.Handle = -1;
            rRes.State = PropertyState_DIRECT_VALUE;
            //For field object.
            OUString strFieldType = GetFieldTypeNameAtIndex(nIndex);
            if (!strFieldType.isEmpty())
            {
                nRes = aRes.getLength();
                aRes.realloc( nRes + 1 );
                beans::PropertyValue &rResField = aRes[nRes];
                rResField.Name = "FieldType";
                rResField.Value <<= strFieldType.toAsciiLowerCase();
                rResField.Handle = -1;
                rResField.State = PropertyState_DIRECT_VALUE;
            }
            //sort property values
            // build sorted index array
            sal_Int32 nLength = aRes.getLength();
            const beans::PropertyValue* pPairs = aRes.getConstArray();
            std::unique_ptr<sal_Int32[]> pIndices(new sal_Int32[nLength]);
            sal_Int32 i = 0;
            for( i = 0; i < nLength; i++ )
                pIndices[i] = i;
            sort( &pIndices[0], &pIndices[nLength], IndexCompare(pPairs) );
            // create sorted sequences according to index array
            uno::Sequence<beans::PropertyValue> aNewValues( nLength );
            beans::PropertyValue* pNewValues = aNewValues.getArray();
            for( i = 0; i < nLength; i++ )
            {
                pNewValues[i] = pPairs[pIndices[i]];
            }

            return aNewValues;
        }
        return aRes;
    }

    awt::Rectangle SAL_CALL AccessibleEditableTextPara::getCharacterBounds( sal_Int32 nIndex )
    {
        SolarMutexGuard aGuard;

        DBG_ASSERT(GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::getCharacterBounds: index value overflow");

        // #108900# Have position semantics now for nIndex, as
        // one-past-the-end values are legal, too.
        CheckPosition( nIndex );

        SvxTextForwarder& rCacheTF = GetTextForwarder();
        tools::Rectangle aRect = rCacheTF.GetCharBounds(GetParagraphIndex(), nIndex);

        // convert to screen
        tools::Rectangle aScreenRect = AccessibleEditableTextPara::LogicToPixel( aRect,
                                                                          rCacheTF.GetMapMode(),
                                                                          GetViewForwarder() );
        // #109864# offset from parent (paragraph), but in screen
        // coordinates. This makes sure the internal text offset in
        // the outline view forwarder gets cancelled out here
        awt::Rectangle aParaRect( getBounds() );
        aScreenRect.Move( -aParaRect.X, -aParaRect.Y );

        // offset from shape/cell
        Point aOffset = GetEEOffset();

        return awt::Rectangle( aScreenRect.Left() + aOffset.X(),
                               aScreenRect.Top() + aOffset.Y(),
                               aScreenRect.GetSize().Width(),
                               aScreenRect.GetSize().Height() );
    }

    sal_Int32 SAL_CALL AccessibleEditableTextPara::getCharacterCount()
    {
        SolarMutexGuard aGuard;

        DBG_ASSERT(GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::getCharacterCount: index value overflow");

        return implGetText().getLength();
    }

    sal_Int32 SAL_CALL AccessibleEditableTextPara::getIndexAtPoint( const awt::Point& rPoint )
    {
        SolarMutexGuard aGuard;

        sal_Int32 nPara;
        sal_Int32 nIndex;

        // offset from surrounding cell/shape
        Point aOffset( GetEEOffset() );
        Point aPoint( rPoint.X - aOffset.X(), rPoint.Y - aOffset.Y() );

        // convert to logical coordinates
        SvxTextForwarder& rCacheTF = GetTextForwarder();
        Point aLogPoint( GetViewForwarder().PixelToLogic( aPoint, rCacheTF.GetMapMode() ) );

        // re-offset to parent (paragraph)
        tools::Rectangle aParaRect = rCacheTF.GetParaBounds( GetParagraphIndex() );
        aLogPoint.Move( aParaRect.Left(), aParaRect.Top() );

        if( rCacheTF.GetIndexAtPoint( aLogPoint, nPara, nIndex ) &&
            GetParagraphIndex() == nPara )
        {
            // #102259# Double-check if we're _really_ on the given character
            try
            {
                awt::Rectangle aRect1( getCharacterBounds(nIndex) );
                tools::Rectangle aRect2( aRect1.X, aRect1.Y,
                                  aRect1.Width + aRect1.X, aRect1.Height + aRect1.Y );
                if( aRect2.IsInside( Point( rPoint.X, rPoint.Y ) ) )
                    return nIndex;
                else
                    return -1;
            }
            catch (const lang::IndexOutOfBoundsException&)
            {
                // #103927# Don't throw for invalid nIndex values
                return -1;
            }
        }
        else
        {
            // not within our paragraph
            return -1;
        }
    }

    OUString SAL_CALL AccessibleEditableTextPara::getSelectedText()
    {
        SolarMutexGuard aGuard;

        DBG_ASSERT(GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::getSelectedText: index value overflow");

        if( !HaveEditView() )
            return OUString();

        return OCommonAccessibleText::getSelectedText();
    }

    sal_Int32 SAL_CALL AccessibleEditableTextPara::getSelectionStart()
    {
        SolarMutexGuard aGuard;

        DBG_ASSERT(GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::getSelectionStart: index value overflow");

        if( !HaveEditView() )
            return -1;

        return OCommonAccessibleText::getSelectionStart();
    }

    sal_Int32 SAL_CALL AccessibleEditableTextPara::getSelectionEnd()
    {
        SolarMutexGuard aGuard;

        DBG_ASSERT(GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::getSelectionEnd: index value overflow");

        if( !HaveEditView() )
            return -1;

        return OCommonAccessibleText::getSelectionEnd();
    }

    sal_Bool SAL_CALL AccessibleEditableTextPara::setSelection( sal_Int32 nStartIndex, sal_Int32 nEndIndex )
    {
        SolarMutexGuard aGuard;

        DBG_ASSERT(GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::setSelection: paragraph index value overflow");

        CheckRange(nStartIndex, nEndIndex);

        try
        {
            SvxEditViewForwarder& rCacheVF = GetEditViewForwarder( true );
            return rCacheVF.SetSelection( MakeSelection(nStartIndex, nEndIndex) );
        }
        catch (const uno::RuntimeException&)
        {
            return false;
        }
    }

    OUString SAL_CALL AccessibleEditableTextPara::getText()
    {
        SolarMutexGuard aGuard;

        DBG_ASSERT(GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::getText: paragraph index value overflow");

        return implGetText();
    }

    OUString SAL_CALL AccessibleEditableTextPara::getTextRange( sal_Int32 nStartIndex, sal_Int32 nEndIndex )
    {
        SolarMutexGuard aGuard;

        DBG_ASSERT(GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::getTextRange: paragraph index value overflow");

        return OCommonAccessibleText::implGetTextRange(implGetText(), nStartIndex, nEndIndex);
    }

    void AccessibleEditableTextPara::_correctValues( uno::Sequence< PropertyValue >& rValues)
    {
        SvxTextForwarder& rCacheTF = GetTextForwarder();
        sal_Int32 nRes = rValues.getLength();
        beans::PropertyValue *pRes = rValues.getArray();
        for (sal_Int32 i = 0;  i < nRes;  ++i)
        {
            beans::PropertyValue &rRes = pRes[i];
            // Char color
            if (rRes.Name == "CharColor")
            {
                uno::Any &anyChar = rRes.Value;
                Color crChar = static_cast<sal_uInt32>( reinterpret_cast<sal_uIntPtr>(anyChar.pReserved));
                if (COL_AUTO == crChar )
                {
                    uno::Reference< css::accessibility::XAccessibleComponent > xComponent(mxParent,uno::UNO_QUERY);
                    if (xComponent.is())
                    {
                        uno::Reference< css::accessibility::XAccessibleContext > xContext(xComponent,uno::UNO_QUERY);
                        if (xContext->getAccessibleRole() == AccessibleRole::SHAPE
                            || xContext->getAccessibleRole() == AccessibleRole::TABLE_CELL)
                        {
                            anyChar <<= COL_BLACK;
                        }
                        else
                        {
                            Color cr(xComponent->getBackground());
                            crChar = cr.IsDark() ? COL_WHITE : COL_BLACK;
                            anyChar <<= crChar;
                        }
                    }
                }
                continue;
            }
            // Underline
            if (rRes.Name == "CharUnderline")
            {
                continue;
            }
            // Underline color && Mis-spell
            if (rRes.Name == "CharUnderlineColor")
            {
                uno::Any &anyCharUnderLine = rRes.Value;
                Color crCharUnderLine = static_cast<sal_uInt32>( reinterpret_cast<sal_uIntPtr>( anyCharUnderLine.pReserved));
                if (COL_AUTO == crCharUnderLine )
                {
                    uno::Reference< css::accessibility::XAccessibleComponent > xComponent(mxParent,uno::UNO_QUERY);
                    if (xComponent.is())
                    {
                        uno::Reference< css::accessibility::XAccessibleContext > xContext(xComponent,uno::UNO_QUERY);
                        if (xContext->getAccessibleRole() == AccessibleRole::SHAPE
                            || xContext->getAccessibleRole() == AccessibleRole::TABLE_CELL)
                        {
                            anyCharUnderLine <<= COL_BLACK;
                        }
                        else
                        {
                            Color cr(xComponent->getBackground());
                            crCharUnderLine = cr.IsDark() ? COL_WHITE : COL_BLACK;
                            anyCharUnderLine <<= crCharUnderLine;
                        }
                    }
                }
                continue;
            }
            // NumberingLevel
            if (rRes.Name == "NumberingLevel")
            {
                const SvxNumBulletItem& rNumBullet = rCacheTF.GetParaAttribs(GetParagraphIndex()).Get(EE_PARA_NUMBULLET);
                if(rNumBullet.GetNumRule()->GetLevelCount()==0)
                {
                    rRes.Value <<= sal_Int16(-1);
                    rRes.Handle = -1;
                    rRes.State = PropertyState_DIRECT_VALUE;
                }
                else
                {
//                  SvxAccessibleTextPropertySet aPropSet( &GetEditSource(),
//                      ImplGetSvxCharAndParaPropertiesMap() );
                    // MT IA2 TODO: Check if this is the correct replacement for ImplGetSvxCharAndParaPropertiesMap
                    rtl::Reference< SvxAccessibleTextPropertySet > xPropSet( new SvxAccessibleTextPropertySet( &GetEditSource(), ImplGetSvxTextPortionSvxPropertySet() ) );

                    xPropSet->SetSelection( MakeSelection( 0, GetTextLen() ) );
                    rRes.Value = xPropSet->_getPropertyValue( rRes.Name, mnParagraphIndex );
                    rRes.State = xPropSet->_getPropertyState( rRes.Name, mnParagraphIndex );
                    rRes.Handle = -1;
                }
                continue;
            }
            // NumberingRules
            if (rRes.Name == "NumberingRules")
            {
                SfxItemSet aAttribs = rCacheTF.GetParaAttribs(GetParagraphIndex());
                bool bVis = aAttribs.Get( EE_PARA_BULLETSTATE ).GetValue();
                if(bVis)
                {
                    rRes.Value <<= sal_Int16(-1);
                    rRes.Handle = -1;
                    rRes.State = PropertyState_DIRECT_VALUE;
                }
                else
                {
                    // MT IA2 TODO: Check if this is the correct replacement for ImplGetSvxCharAndParaPropertiesMap
                    rtl::Reference< SvxAccessibleTextPropertySet > xPropSet( new SvxAccessibleTextPropertySet( &GetEditSource(), ImplGetSvxTextPortionSvxPropertySet() ) );
                    xPropSet->SetSelection( MakeSelection( 0, GetTextLen() ) );
                    rRes.Value = xPropSet->_getPropertyValue( rRes.Name, mnParagraphIndex );
                    rRes.State = xPropSet->_getPropertyState( rRes.Name, mnParagraphIndex );
                    rRes.Handle = -1;
                }
                continue;
            }
        }
    }
    sal_Int32 AccessibleEditableTextPara::SkipField(sal_Int32 nIndex, bool bForward)
    {
        sal_Int32 nParaIndex = GetParagraphIndex();
        SvxAccessibleTextAdapter& rCacheTF = GetTextForwarder();
        sal_Int32 nAllFieldLen = 0;
        sal_Int32 nField = rCacheTF.GetFieldCount(nParaIndex), nFoundFieldIndex = -1;
        sal_Int32  reeBegin=0, reeEnd=0;
        for (sal_Int32 j = 0; j < nField; ++j)
        {
            EFieldInfo ree = rCacheTF.GetFieldInfo(nParaIndex, j);
            reeBegin = ree.aPosition.nIndex + nAllFieldLen;
            reeEnd = reeBegin + ree.aCurrentText.getLength();
            nAllFieldLen += (ree.aCurrentText.getLength() - 1);
            if (nIndex < reeBegin)
                break;
            if (!ree.pFieldItem)
                continue;
            if (nIndex < reeEnd)
            {
                if (ree.pFieldItem->GetField()->GetClassId() != text::textfield::Type::URL)
                {
                    nFoundFieldIndex = j;
                    break;
                }
            }
        }
        if( nFoundFieldIndex >= 0  )
        {
            if( bForward )
                return reeEnd - 1;
            else
                return reeBegin;
        }
        return nIndex;
    }
    void AccessibleEditableTextPara::ExtendByField( css::accessibility::TextSegment& Segment )
    {
        sal_Int32 nParaIndex = GetParagraphIndex();
        SvxAccessibleTextAdapter& rCacheTF = GetTextForwarder();
        sal_Int32 nAllFieldLen = 0;
        sal_Int32 nField = rCacheTF.GetFieldCount(nParaIndex), nFoundFieldIndex = -1;
        sal_Int32  reeBegin=0, reeEnd=0;
        for (sal_Int32 j = 0; j < nField; ++j)
        {
            EFieldInfo ree = rCacheTF.GetFieldInfo(nParaIndex, j);
            reeBegin  = ree.aPosition.nIndex + nAllFieldLen;
            reeEnd = reeBegin + ree.aCurrentText.getLength();
            nAllFieldLen += (ree.aCurrentText.getLength() - 1);
            if( reeBegin > Segment.SegmentEnd )
            {
                break;
            }
            if (!ree.pFieldItem)
                continue;
            if(  (Segment.SegmentEnd > reeBegin && Segment.SegmentEnd <= reeEnd) ||
                  (Segment.SegmentStart >= reeBegin && Segment.SegmentStart < reeEnd)  )
            {
                if(ree.pFieldItem->GetField()->GetClassId() != text::textfield::Type::URL)
                {
                    nFoundFieldIndex = j;
                    break;
                }
            }
        }
        if( nFoundFieldIndex < 0 )
            return;

        bool bExtend = false;
        if( Segment.SegmentEnd < reeEnd )
        {
            Segment.SegmentEnd  = reeEnd;
            bExtend = true;
        }
        if( Segment.SegmentStart > reeBegin )
        {
            Segment.SegmentStart = reeBegin;
            bExtend = true;
        }
        if( !bExtend )
            return;

        //If there is a bullet before the field, should add the bullet length into the segment.
        EBulletInfo aBulletInfo = rCacheTF.GetBulletInfo(nParaIndex);
        sal_Int32 nBulletLen = aBulletInfo.aText.getLength();
        if (nBulletLen > 0)
        {
            Segment.SegmentEnd += nBulletLen;
            if (nFoundFieldIndex > 0)
                Segment.SegmentStart += nBulletLen;
            Segment.SegmentText = GetTextRange(Segment.SegmentStart, Segment.SegmentEnd);
            //After get the correct field name, should restore the offset value which don't contain the bullet.
            Segment.SegmentEnd -= nBulletLen;
            if (nFoundFieldIndex > 0)
                Segment.SegmentStart -= nBulletLen;
        }
        else
            Segment.SegmentText = GetTextRange(Segment.SegmentStart, Segment.SegmentEnd);
    }

    css::accessibility::TextSegment SAL_CALL AccessibleEditableTextPara::getTextAtIndex( sal_Int32 nIndex, sal_Int16 aTextType )
    {
        SolarMutexGuard aGuard;

        DBG_ASSERT(GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::getTextAtIndex: paragraph index value overflow");

        css::accessibility::TextSegment aResult;
        aResult.SegmentStart = -1;
        aResult.SegmentEnd = -1;

        switch( aTextType )
        {
            case AccessibleTextType::CHARACTER:
            case AccessibleTextType::WORD:
            {
                aResult = OCommonAccessibleText::getTextAtIndex( nIndex, aTextType );
                ExtendByField( aResult );
                break;
            }
            // Not yet handled by OCommonAccessibleText. Missing
            // implGetAttributeRunBoundary() method there
            case AccessibleTextType::ATTRIBUTE_RUN:
            {
                const sal_Int32 nTextLen = GetTextForwarder().GetTextLen( GetParagraphIndex() );

                if( nIndex == nTextLen )
                {
                    // #i17014# Special-casing one-behind-the-end character
                    aResult.SegmentStart = aResult.SegmentEnd = nTextLen;
                }
                else
                {
                    sal_Int32 nStartIndex, nEndIndex;
                    //For the bullet paragraph, the bullet string is ignored for IAText::attributes() function.
                    SvxTextForwarder&   rCacheTF = GetTextForwarder();
                    // MT IA2: Not used? sal_Int32 nBulletLen = 0;
                    EBulletInfo aBulletInfo = rCacheTF.GetBulletInfo(GetParagraphIndex());
                    if (aBulletInfo.bVisible)
                        nIndex += aBulletInfo.aText.getLength();
                    if (nIndex != 0  && nIndex >= getCharacterCount())
                        nIndex = getCharacterCount()-1;
                    CheckPosition(nIndex);
                    if( GetAttributeRun(nStartIndex, nEndIndex, nIndex) )
                    {
                        aResult.SegmentText = GetTextRange(nStartIndex, nEndIndex);
                        if (aBulletInfo.bVisible)
                        {
                            nStartIndex -= aBulletInfo.aText.getLength();
                            nEndIndex -= aBulletInfo.aText.getLength();
                        }
                        aResult.SegmentStart = nStartIndex;
                        aResult.SegmentEnd = nEndIndex;
                    }
                }
                break;
            }
            case AccessibleTextType::LINE:
            {
                SvxTextForwarder&   rCacheTF = GetTextForwarder();
                sal_Int32           nParaIndex = GetParagraphIndex();
                CheckPosition(nIndex);
                if (nIndex != 0  && nIndex == getCharacterCount())
                    --nIndex;
                sal_Int32 nLine, nLineCount=rCacheTF.GetLineCount( nParaIndex );
                sal_Int32 nCurIndex;
                //the problem is that rCacheTF.GetLineLen() will include the bullet length. But for the bullet line,
                //the text value doesn't contain the bullet characters. all of the bullet and numbering info are exposed
                //by the IAText::attributes(). So here must do special support for bullet line.
                sal_Int32 nBulletLen = 0;
                for( nLine=0, nCurIndex=0; nLine<nLineCount; ++nLine )
                {
                    if (nLine == 0)
                    {
                        EBulletInfo aBulletInfo = rCacheTF.GetBulletInfo( nParaIndex );
                        if (aBulletInfo.bVisible)
                        {
                            //in bullet or numbering;
                            nBulletLen = aBulletInfo.aText.getLength();
                        }
                    }
                    sal_Int32 nLineLen = rCacheTF.GetLineLen(nParaIndex, nLine);
                    if (nLine == 0)
                        nCurIndex += nLineLen - nBulletLen;
                    else
                        nCurIndex += nLineLen;
                    if( nCurIndex > nIndex )
                    {
                        if (nLine ==0)
                        {
                            aResult.SegmentStart = 0;
                            aResult.SegmentEnd = nCurIndex;
                            aResult.SegmentText = GetTextRange( aResult.SegmentStart, aResult.SegmentEnd + nBulletLen);
                            break;
                        }
                        else
                        {
                            aResult.SegmentStart = nCurIndex - nLineLen;
                            aResult.SegmentEnd = nCurIndex;
                            //aResult.SegmentText = GetTextRange( aResult.SegmentStart, aResult.SegmentEnd );
                            aResult.SegmentText = GetTextRange( aResult.SegmentStart + nBulletLen, aResult.SegmentEnd + nBulletLen);
                            break;
                        }
                    }
                }
                break;
            }
            default:
                aResult = OCommonAccessibleText::getTextAtIndex( nIndex, aTextType );
                break;
        } /* end of switch( aTextType ) */

        return aResult;
    }

    css::accessibility::TextSegment SAL_CALL AccessibleEditableTextPara::getTextBeforeIndex( sal_Int32 nIndex, sal_Int16 aTextType )
    {
        SolarMutexGuard aGuard;

        DBG_ASSERT(GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::getTextBeforeIndex: paragraph index value overflow");

        css::accessibility::TextSegment aResult;
        aResult.SegmentStart = -1;
        aResult.SegmentEnd = -1;
        i18n::Boundary aBoundary;
        switch( aTextType )
        {
            // Not yet handled by OCommonAccessibleText. Missing
            // implGetAttributeRunBoundary() method there
            case AccessibleTextType::ATTRIBUTE_RUN:
            {
                const sal_Int32 nTextLen = GetTextForwarder().GetTextLen( GetParagraphIndex() );
                sal_Int32 nStartIndex, nEndIndex;

                if( nIndex == nTextLen )
                {
                    // #i17014# Special-casing one-behind-the-end character
                    if( nIndex > 0 &&
                        GetAttributeRun(nStartIndex, nEndIndex, nIndex-1) )
                    {
                        aResult.SegmentText = GetTextRange(nStartIndex, nEndIndex);
                        aResult.SegmentStart = nStartIndex;
                        aResult.SegmentEnd = nEndIndex;
                    }
                }
                else
                {
                    if( GetAttributeRun(nStartIndex, nEndIndex, nIndex) )
                    {
                        // already at the left border? If not, query
                        // one index further left
                        if( nStartIndex > 0 &&
                            GetAttributeRun(nStartIndex, nEndIndex, nStartIndex-1) )
                        {
                            aResult.SegmentText = GetTextRange(nStartIndex, nEndIndex);
                            aResult.SegmentStart = nStartIndex;
                            aResult.SegmentEnd = nEndIndex;
                        }
                    }
                }
                break;
            }
            case AccessibleTextType::LINE:
            {
                SvxTextForwarder&   rCacheTF = GetTextForwarder();
                sal_Int32           nParaIndex = GetParagraphIndex();

                CheckPosition(nIndex);

                sal_Int32 nLine, nLineCount=rCacheTF.GetLineCount( nParaIndex );
                //the problem is that rCacheTF.GetLineLen() will include the bullet length. But for the bullet line,
                //the text value doesn't contain the bullet characters. all of the bullet and numbering info are exposed
                //by the IAText::attributes(). So here must do special support for bullet line.
                sal_Int32 nCurIndex=0, nLastIndex=0, nCurLineLen=0;
                sal_Int32 nLastLineLen = 0, nBulletLen = 0;
                // get the line before the line the index points into
                for( nLine=0, nCurIndex=0; nLine<nLineCount; ++nLine )
                {
                    nLastIndex = nCurIndex;
                    if (nLine == 0)
                    {
                        EBulletInfo aBulletInfo = rCacheTF.GetBulletInfo(nParaIndex);
                        if (aBulletInfo.bVisible)
                        {
                            //in bullet or numbering;
                            nBulletLen = aBulletInfo.aText.getLength();
                        }
                    }
                    if (nLine == 1)
                        nLastLineLen = nCurLineLen - nBulletLen;
                    else
                        nLastLineLen = nCurLineLen;
                    nCurLineLen = rCacheTF.GetLineLen( nParaIndex, nLine);
                    //nCurIndex += nCurLineLen;
                    if (nLine == 0)
                        nCurIndex += nCurLineLen - nBulletLen;
                    else
                        nCurIndex += nCurLineLen;

                    //if( nCurIndex > nIndex &&
                    //nLastIndex > nCurLineLen )
                    if (nCurIndex > nIndex)
                    {
                        if (nLine == 0)
                        {
                            break;
                        }
                        else if (nLine == 1)
                        {
                            aResult.SegmentStart = 0;
                            aResult.SegmentEnd = nLastIndex;
                            aResult.SegmentText = GetTextRange( aResult.SegmentStart, aResult.SegmentEnd + nBulletLen);
                            break;
                        }
                        else
                        {
                            //aResult.SegmentStart = nLastIndex - nCurLineLen;
                            aResult.SegmentStart = nLastIndex - nLastLineLen;
                            aResult.SegmentEnd = nLastIndex;
                            aResult.SegmentText = GetTextRange( aResult.SegmentStart + nBulletLen, aResult.SegmentEnd + nBulletLen);
                            break;
                        }
                    }
                }

                break;
            }
            case AccessibleTextType::WORD:
            {
                nIndex = SkipField( nIndex, false);
                OUString sText( implGetText() );
                sal_Int32 nLength = sText.getLength();

                // get word at index
                implGetWordBoundary( sText, aBoundary, nIndex );


                //sal_Int32 curWordStart = aBoundary.startPos;
                //sal_Int32 preWordStart = curWordStart;
                sal_Int32 curWordStart , preWordStart;
                if( aBoundary.startPos == -1 || aBoundary.startPos > nIndex)
                    curWordStart = preWordStart = nIndex;
                else
                    curWordStart = preWordStart = aBoundary.startPos;

                // get previous word

                bool bWord = false;

                //while ( preWordStart > 0 && aBoundary.startPos == curWordStart)
                while ( (preWordStart >= 0 && !bWord ) || ( aBoundary.endPos > curWordStart ) )
                    {
                    preWordStart--;
                    bWord = implGetWordBoundary( sText, aBoundary, preWordStart );
                }
                if ( bWord && implIsValidBoundary( aBoundary, nLength ) )
                {
                    aResult.SegmentText = sText.copy( aBoundary.startPos, aBoundary.endPos - aBoundary.startPos );
                    aResult.SegmentStart = aBoundary.startPos;
                    aResult.SegmentEnd = aBoundary.endPos;
                    ExtendByField( aResult );
                }
            }
            break;
            case AccessibleTextType::CHARACTER:
            {
                nIndex = SkipField( nIndex, false);
                aResult = OCommonAccessibleText::getTextBeforeIndex( nIndex, aTextType );
                ExtendByField( aResult );
                break;
            }
            default:
                aResult = OCommonAccessibleText::getTextBeforeIndex( nIndex, aTextType );
                break;
        } /* end of switch( aTextType ) */

        return aResult;
    }

    css::accessibility::TextSegment SAL_CALL AccessibleEditableTextPara::getTextBehindIndex( sal_Int32 nIndex, sal_Int16 aTextType )
    {
        SolarMutexGuard aGuard;

        DBG_ASSERT(GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::getTextBehindIndex: paragraph index value overflow");

        css::accessibility::TextSegment aResult;
        aResult.SegmentStart = -1;
        aResult.SegmentEnd = -1;
        i18n::Boundary aBoundary;
        switch( aTextType )
        {
            case AccessibleTextType::ATTRIBUTE_RUN:
            {
                sal_Int32 nStartIndex, nEndIndex;

                if( GetAttributeRun(nStartIndex, nEndIndex, nIndex) )
                {
                    // already at the right border?
                    if( nEndIndex < GetTextLen() )
                    {
                        if( GetAttributeRun(nStartIndex, nEndIndex, nEndIndex) )
                        {
                            aResult.SegmentText = GetTextRange(nStartIndex, nEndIndex);
                            aResult.SegmentStart = nStartIndex;
                            aResult.SegmentEnd = nEndIndex;
                        }
                    }
                }
                break;
            }

            case AccessibleTextType::LINE:
            {
                SvxTextForwarder&   rCacheTF = GetTextForwarder();
                sal_Int32           nParaIndex = GetParagraphIndex();

                CheckPosition(nIndex);

                sal_Int32 nLine, nLineCount = rCacheTF.GetLineCount( nParaIndex );
                sal_Int32 nCurIndex;
                //the problem is that rCacheTF.GetLineLen() will include the bullet length. But for the bullet line,
                //the text value doesn't contain the bullet characters. all of the bullet and numbering info are exposed
                //by the IAText::attributes(). So here must do special support for bullet line.
                sal_Int32 nBulletLen = 0;
                // get the line after the line the index points into
                for( nLine=0, nCurIndex=0; nLine<nLineCount; ++nLine )
                {
                    if (nLine == 0)
                    {
                        EBulletInfo aBulletInfo = rCacheTF.GetBulletInfo(nParaIndex);
                        if (aBulletInfo.bVisible)
                        {
                            //in bullet or numbering;
                            nBulletLen = aBulletInfo.aText.getLength();
                        }
                    }
                    sal_Int32 nLineLen = rCacheTF.GetLineLen( nParaIndex, nLine);

                    if (nLine == 0)
                        nCurIndex += nLineLen - nBulletLen;
                    else
                        nCurIndex += nLineLen;

                    if( nCurIndex > nIndex &&
                        nLine < nLineCount-1 )
                    {
                        aResult.SegmentStart = nCurIndex;
                        aResult.SegmentEnd = nCurIndex + rCacheTF.GetLineLen( nParaIndex, nLine+1);
                        aResult.SegmentText = GetTextRange( aResult.SegmentStart + nBulletLen, aResult.SegmentEnd + nBulletLen);
                        break;
                    }
                }

                break;
            }
            case AccessibleTextType::WORD:
            {
                nIndex = SkipField( nIndex, true);
                OUString sText( implGetText() );
                sal_Int32 nLength = sText.getLength();

                // get word at index
                bool bWord = implGetWordBoundary( sText, aBoundary, nIndex );

                // real current world
                sal_Int32 nextWord = nIndex;
                //if( nIndex >= aBoundary.startPos && nIndex <= aBoundary.endPos )
                if( nIndex <= aBoundary.endPos )
                {
                    nextWord =  aBoundary.endPos;
                    if (nextWord < sText.getLength() && sText[nextWord] == u' ') nextWord++;
                    bWord = implGetWordBoundary( sText, aBoundary, nextWord );
                }

                if ( bWord && implIsValidBoundary( aBoundary, nLength ) )
                {
                    aResult.SegmentText = sText.copy( aBoundary.startPos, aBoundary.endPos - aBoundary.startPos );
                    aResult.SegmentStart = aBoundary.startPos;
                    aResult.SegmentEnd = aBoundary.endPos;

                    // If the end position of aBoundary is inside a field, extend the result to the end of the field

                    ExtendByField( aResult );
                }
            }
            break;

            case AccessibleTextType::CHARACTER:
            {
                nIndex = SkipField( nIndex, true);
                aResult = OCommonAccessibleText::getTextBehindIndex( nIndex, aTextType );
                ExtendByField( aResult );
                break;
            }
            default:
                aResult = OCommonAccessibleText::getTextBehindIndex( nIndex, aTextType );
                break;
        } /* end of switch( aTextType ) */

        return aResult;
    }

    sal_Bool SAL_CALL AccessibleEditableTextPara::copyText( sal_Int32 nStartIndex, sal_Int32 nEndIndex )
    {
        SolarMutexGuard aGuard;

        try
        {
            SvxEditViewForwarder& rCacheVF = GetEditViewForwarder( true );
            GetTextForwarder();                                         // MUST be after GetEditViewForwarder(), see method docs

            bool aRetVal;

            DBG_ASSERT(GetParagraphIndex() >= 0,
                       "AccessibleEditableTextPara::copyText: index value overflow");

            CheckRange(nStartIndex, nEndIndex);

            //Because bullet may occupy one or more characters, the TextAdapter will include bullet to calculate the selection. Add offset to handle bullet
            sal_Int32 nBulletLen = 0;
            EBulletInfo aBulletInfo = GetTextForwarder().GetBulletInfo(GetParagraphIndex());
            if( aBulletInfo.nParagraph != EE_PARA_NOT_FOUND && aBulletInfo.bVisible )
                        nBulletLen = aBulletInfo.aText.getLength();
            // save current selection
            ESelection aOldSelection;

            rCacheVF.GetSelection( aOldSelection );
            //rCacheVF.SetSelection( MakeSelection(nStartIndex, nEndIndex) );
            rCacheVF.SetSelection( MakeSelection(nStartIndex + nBulletLen, nEndIndex + nBulletLen) );
            aRetVal = rCacheVF.Copy();
            rCacheVF.SetSelection( aOldSelection ); // restore

            return aRetVal;
        }
        catch (const uno::RuntimeException&)
        {
            return false;
        }
    }

    sal_Bool SAL_CALL AccessibleEditableTextPara::scrollSubstringTo( sal_Int32, sal_Int32, AccessibleScrollType )
    {
        return false;
    }

    // XAccessibleEditableText
    sal_Bool SAL_CALL AccessibleEditableTextPara::cutText( sal_Int32 nStartIndex, sal_Int32 nEndIndex )
    {

        SolarMutexGuard aGuard;

        try
        {
            SvxEditViewForwarder& rCacheVF = GetEditViewForwarder( true );
            SvxAccessibleTextAdapter& rCacheTF = GetTextForwarder();    // MUST be after GetEditViewForwarder(), see method docs

            DBG_ASSERT(GetParagraphIndex() >= 0,
                       "AccessibleEditableTextPara::cutText: index value overflow");

            CheckRange(nStartIndex, nEndIndex);

            // Because bullet may occupy one or more characters, the TextAdapter will include bullet to calculate the selection. Add offset to handle bullet
            sal_Int32 nBulletLen = 0;
            EBulletInfo aBulletInfo = GetTextForwarder().GetBulletInfo(GetParagraphIndex());
            if( aBulletInfo.nParagraph != EE_PARA_NOT_FOUND && aBulletInfo.bVisible )
                        nBulletLen = aBulletInfo.aText.getLength();
            ESelection aSelection = MakeSelection (nStartIndex + nBulletLen, nEndIndex + nBulletLen);
            //if( !rCacheTF.IsEditable( MakeSelection(nStartIndex, nEndIndex) ) )
            if( !rCacheTF.IsEditable( aSelection ) )
                return false; // non-editable area selected

            // don't save selection, might become invalid after cut!
            //rCacheVF.SetSelection( MakeSelection(nStartIndex, nEndIndex) );
            rCacheVF.SetSelection( aSelection );

            return rCacheVF.Cut();
        }
        catch (const uno::RuntimeException&)
        {
            return false;
        }
    }

    sal_Bool SAL_CALL AccessibleEditableTextPara::pasteText( sal_Int32 nIndex )
    {

        SolarMutexGuard aGuard;

        try
        {
            SvxEditViewForwarder& rCacheVF = GetEditViewForwarder( true );
            SvxAccessibleTextAdapter& rCacheTF = GetTextForwarder();    // MUST be after GetEditViewForwarder(), see method docs

            DBG_ASSERT(GetParagraphIndex() >= 0,
                       "AccessibleEditableTextPara::pasteText: index value overflow");

            CheckPosition(nIndex);

            // Because bullet may occupy one or more characters, the TextAdapter will include bullet to calculate the selection. Add offset to handle bullet
            sal_Int32 nBulletLen = 0;
            EBulletInfo aBulletInfo = GetTextForwarder().GetBulletInfo(GetParagraphIndex());
            if( aBulletInfo.nParagraph != EE_PARA_NOT_FOUND && aBulletInfo.bVisible )
                        nBulletLen = aBulletInfo.aText.getLength();
            if( !rCacheTF.IsEditable( MakeSelection(nIndex + nBulletLen) ) )
                return false; // non-editable area selected

            // #104400# set empty selection (=> cursor) to given index
            //rCacheVF.SetSelection( MakeCursor(nIndex) );
            rCacheVF.SetSelection( MakeCursor(nIndex + nBulletLen) );

            return rCacheVF.Paste();
        }
        catch (const uno::RuntimeException&)
        {
            return false;
        }
    }

    sal_Bool SAL_CALL AccessibleEditableTextPara::deleteText( sal_Int32 nStartIndex, sal_Int32 nEndIndex )
    {

        SolarMutexGuard aGuard;

        try
        {
            // #102710# Request edit view when doing changes
            // AccessibleEmptyEditSource relies on this behaviour
            GetEditViewForwarder( true );
            SvxAccessibleTextAdapter& rCacheTF = GetTextForwarder();    // MUST be after GetEditViewForwarder(), see method docs

            DBG_ASSERT(GetParagraphIndex() >= 0,
                       "AccessibleEditableTextPara::deleteText: index value overflow");

            CheckRange(nStartIndex, nEndIndex);

            // Because bullet may occupy one or more characters, the TextAdapter will include bullet to calculate the selection. Add offset to handle bullet
            sal_Int32 nBulletLen = 0;
            EBulletInfo aBulletInfo = GetTextForwarder().GetBulletInfo(GetParagraphIndex());
            if( aBulletInfo.nParagraph != EE_PARA_NOT_FOUND && aBulletInfo.bVisible )
                nBulletLen = aBulletInfo.aText.getLength();
            ESelection aSelection = MakeSelection (nStartIndex + nBulletLen, nEndIndex + nBulletLen);

            //if( !rCacheTF.IsEditable( MakeSelection(nStartIndex, nEndIndex) ) )
            if( !rCacheTF.IsEditable( aSelection ) )
                return false; // non-editable area selected

            //sal_Bool bRet = rCacheTF.Delete( MakeSelection(nStartIndex, nEndIndex) );
            bool bRet = rCacheTF.Delete( aSelection );

            GetEditSource().UpdateData();

            return bRet;
        }
        catch (const uno::RuntimeException&)
        {
            return false;
        }
    }

    sal_Bool SAL_CALL AccessibleEditableTextPara::insertText( const OUString& sText, sal_Int32 nIndex )
    {

        SolarMutexGuard aGuard;

        try
        {
            // #102710# Request edit view when doing changes
            // AccessibleEmptyEditSource relies on this behaviour
            GetEditViewForwarder( true );
            SvxAccessibleTextAdapter& rCacheTF = GetTextForwarder();    // MUST be after GetEditViewForwarder(), see method docs

            DBG_ASSERT(GetParagraphIndex() >= 0,
                       "AccessibleEditableTextPara::insertText: index value overflow");

            CheckPosition(nIndex);

            // Because bullet may occupy one or more characters, the TextAdapter will include bullet to calculate the selection. Add offset to handle bullet
            sal_Int32 nBulletLen = 0;
            EBulletInfo aBulletInfo = GetTextForwarder().GetBulletInfo(GetParagraphIndex());
            if( aBulletInfo.nParagraph != EE_PARA_NOT_FOUND && aBulletInfo.bVisible )
                        nBulletLen = aBulletInfo.aText.getLength();

            if( !rCacheTF.IsEditable( MakeSelection(nIndex + nBulletLen) ) )
                return false; // non-editable area selected

            // #104400# insert given text at empty selection (=> cursor)
            bool bRet = rCacheTF.InsertText( sText, MakeCursor(nIndex + nBulletLen) );

            rCacheTF.QuickFormatDoc();
            GetEditSource().UpdateData();

            return bRet;
        }
        catch (const uno::RuntimeException&)
        {
            return false;
        }
    }

    sal_Bool SAL_CALL AccessibleEditableTextPara::replaceText( sal_Int32 nStartIndex, sal_Int32 nEndIndex, const OUString& sReplacement )
    {

        SolarMutexGuard aGuard;

        try
        {
            // #102710# Request edit view when doing changes
            // AccessibleEmptyEditSource relies on this behaviour
            GetEditViewForwarder( true );
            SvxAccessibleTextAdapter& rCacheTF = GetTextForwarder();    // MUST be after GetEditViewForwarder(), see method docs

            DBG_ASSERT(GetParagraphIndex() >= 0,
                       "AccessibleEditableTextPara::replaceText: index value overflow");

            CheckRange(nStartIndex, nEndIndex);

            // Because bullet may occupy one or more characters, the TextAdapter will include bullet to calculate the selection. Add offset to handle bullet
            sal_Int32 nBulletLen = 0;
            EBulletInfo aBulletInfo = GetTextForwarder().GetBulletInfo(GetParagraphIndex());
            if( aBulletInfo.nParagraph != EE_PARA_NOT_FOUND && aBulletInfo.bVisible )
                        nBulletLen = aBulletInfo.aText.getLength();
            ESelection aSelection = MakeSelection (nStartIndex + nBulletLen, nEndIndex + nBulletLen);

            //if( !rCacheTF.IsEditable( MakeSelection(nStartIndex, nEndIndex) ) )
            if( !rCacheTF.IsEditable( aSelection ) )
                return false; // non-editable area selected

            // insert given text into given range => replace
            //sal_Bool bRet = rCacheTF.InsertText( sReplacement, MakeSelection(nStartIndex, nEndIndex) );
            bool bRet = rCacheTF.InsertText( sReplacement, aSelection );

            rCacheTF.QuickFormatDoc();
            GetEditSource().UpdateData();

            return bRet;
        }
        catch (const uno::RuntimeException&)
        {
            return false;
        }
    }

    sal_Bool SAL_CALL AccessibleEditableTextPara::setAttributes( sal_Int32 nStartIndex, sal_Int32 nEndIndex, const uno::Sequence< beans::PropertyValue >& aAttributeSet )
    {

        SolarMutexGuard aGuard;

        try
        {
            // #102710# Request edit view when doing changes
            // AccessibleEmptyEditSource relies on this behaviour
            GetEditViewForwarder( true );
            SvxAccessibleTextAdapter& rCacheTF = GetTextForwarder();    // MUST be after GetEditViewForwarder(), see method docs
            sal_Int32 nPara = GetParagraphIndex();

            DBG_ASSERT(GetParagraphIndex() >= 0,
                       "AccessibleEditableTextPara::setAttributes: index value overflow");

            CheckRange(nStartIndex, nEndIndex);

            if( !rCacheTF.IsEditable( MakeSelection(nStartIndex, nEndIndex) ) )
                return false; // non-editable area selected

            // do the indices span the whole paragraph? Then use the outliner map
            // TODO: hold it as a member?
            rtl::Reference< SvxAccessibleTextPropertySet > xPropSet( new SvxAccessibleTextPropertySet( &GetEditSource(),
                                                   0 == nStartIndex &&
                                                   rCacheTF.GetTextLen(nPara) == nEndIndex ?
                                                   ImplGetSvxUnoOutlinerTextCursorSvxPropertySet() :
                                                   ImplGetSvxTextPortionSvxPropertySet() ) );

            xPropSet->SetSelection( MakeSelection(nStartIndex, nEndIndex) );

            // convert from PropertyValue to Any
            for(const beans::PropertyValue& rProp : aAttributeSet)
            {
                try
                {
                    xPropSet->setPropertyValue(rProp.Name, rProp.Value);
                }
                catch (const uno::Exception&)
                {
                    OSL_FAIL("AccessibleEditableTextPara::setAttributes exception in setPropertyValue");
                }
            }

            rCacheTF.QuickFormatDoc();
            GetEditSource().UpdateData();

            return true;
        }
        catch (const uno::RuntimeException&)
        {
            return false;
        }
    }

    sal_Bool SAL_CALL AccessibleEditableTextPara::setText( const OUString& sText )
    {

        SolarMutexGuard aGuard;

        return replaceText(0, getCharacterCount(), sText);
    }

    // XAccessibleTextAttributes
    uno::Sequence< beans::PropertyValue > SAL_CALL AccessibleEditableTextPara::getDefaultAttributes(
            const uno::Sequence< OUString >& rRequestedAttributes )
    {
        SolarMutexGuard aGuard;

        GetTextForwarder();

        DBG_ASSERT(GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::getCharacterAttributes: index value overflow");

        // get XPropertySetInfo for paragraph attributes and
        // character attributes that span all the paragraphs text.
        rtl::Reference< SvxAccessibleTextPropertySet > xPropSet( new SvxAccessibleTextPropertySet( &GetEditSource(),
                ImplGetSvxCharAndParaPropertiesSet() ) );
        xPropSet->SetSelection( MakeSelection( 0, GetTextLen() ) );
        uno::Reference< beans::XPropertySetInfo > xPropSetInfo = xPropSet->getPropertySetInfo();
        if (!xPropSetInfo.is())
            throw uno::RuntimeException("Cannot query XPropertySetInfo",
                        uno::Reference< uno::XInterface >
                        ( static_cast< XAccessible* > (this) ) );   // disambiguate hierarchy

        // build sequence of available properties to check
        uno::Sequence< beans::Property > aProperties;
        if (const sal_Int32 nLenReqAttr = rRequestedAttributes.getLength())
        {
            aProperties.realloc( nLenReqAttr );
            beans::Property *pProperties = aProperties.getArray();
            sal_Int32 nCurLen = 0;
            for (const OUString& rRequestedAttribute : rRequestedAttributes)
            {
                beans::Property aProp;
                try
                {
                    aProp = xPropSetInfo->getPropertyByName( rRequestedAttribute );
                }
                catch (const beans::UnknownPropertyException&)
                {
                    continue;
                }
                pProperties[ nCurLen++ ] = aProp;
            }
            aProperties.realloc( nCurLen );
        }
        else
            aProperties = xPropSetInfo->getProperties();

        // build resulting sequence
        uno::Sequence< beans::PropertyValue > aOutSequence( aProperties.getLength() );
        beans::PropertyValue* pOutSequence = aOutSequence.getArray();
        sal_Int32 nOutLen = 0;
        for (const beans::Property& rProperty : std::as_const(aProperties))
        {
            // calling implementation functions:
            // _getPropertyState and _getPropertyValue (see below) to provide
            // the proper paragraph number when retrieving paragraph attributes
            PropertyState eState = xPropSet->_getPropertyState( rProperty.Name, mnParagraphIndex );
            if ( eState == PropertyState_AMBIGUOUS_VALUE )
            {
                OSL_FAIL( "ambiguous property value encountered" );
            }

            //if (eState == PropertyState_DIRECT_VALUE)
            // per definition all paragraph properties and all character
            // properties spanning the whole paragraph should be returned
            // and declared as default value
            {
                pOutSequence->Name      = rProperty.Name;
                pOutSequence->Handle    = rProperty.Handle;
                pOutSequence->Value     = xPropSet->_getPropertyValue( rProperty.Name, mnParagraphIndex );
                pOutSequence->State     = PropertyState_DEFAULT_VALUE;

                ++pOutSequence;
                ++nOutLen;
            }
        }
        aOutSequence.realloc( nOutLen );

        return aOutSequence;
    }


    uno::Sequence< beans::PropertyValue > SAL_CALL AccessibleEditableTextPara::getRunAttributes(
            sal_Int32 nIndex,
            const uno::Sequence< OUString >& rRequestedAttributes )
    {

        SolarMutexGuard aGuard;

        GetTextForwarder();

        DBG_ASSERT(GetParagraphIndex() >= 0,
                   "AccessibleEditableTextPara::getCharacterAttributes: index value overflow");

        if( getCharacterCount() > 0 )
            CheckIndex(nIndex);
        else
            CheckPosition(nIndex);

        rtl::Reference< SvxAccessibleTextPropertySet > xPropSet( new SvxAccessibleTextPropertySet( &GetEditSource(),
                                               ImplGetSvxCharAndParaPropertiesSet() ) );
        xPropSet->SetSelection( MakeSelection( nIndex ) );
        uno::Reference< beans::XPropertySetInfo > xPropSetInfo = xPropSet->getPropertySetInfo();
        if (!xPropSetInfo.is())
            throw uno::RuntimeException("Cannot query XPropertySetInfo",
                                        uno::Reference< uno::XInterface >
                                        ( static_cast< XAccessible* > (this) ) );   // disambiguate hierarchy

        // build sequence of available properties to check
        uno::Sequence< beans::Property > aProperties;
        if (const sal_Int32 nLenReqAttr = rRequestedAttributes.getLength())
        {
            aProperties.realloc( nLenReqAttr );
            beans::Property *pProperties = aProperties.getArray();
            sal_Int32 nCurLen = 0;
            for (const OUString& rRequestedAttribute : rRequestedAttributes)
            {
                beans::Property aProp;
                try
                {
                    aProp = xPropSetInfo->getPropertyByName( rRequestedAttribute );
                }
                catch (const beans::UnknownPropertyException&)
                {
                    continue;
                }
                pProperties[ nCurLen++ ] = aProp;
            }
            aProperties.realloc( nCurLen );
        }
        else
            aProperties = xPropSetInfo->getProperties();

        // build resulting sequence
        uno::Sequence< beans::PropertyValue > aOutSequence( aProperties.getLength() );
        beans::PropertyValue* pOutSequence = aOutSequence.getArray();
        sal_Int32 nOutLen = 0;
        for (const beans::Property& rProperty : std::as_const(aProperties))
        {
            // calling 'regular' functions that will operate on the selection
            PropertyState eState = xPropSet->getPropertyState( rProperty.Name );
            if (eState == PropertyState_DIRECT_VALUE)
            {
                pOutSequence->Name      = rProperty.Name;
                pOutSequence->Handle    = rProperty.Handle;
                pOutSequence->Value     = xPropSet->getPropertyValue( rProperty.Name );
                pOutSequence->State     = eState;

                ++pOutSequence;
                ++nOutLen;
            }
        }
        aOutSequence.realloc( nOutLen );

        return aOutSequence;
    }

    // XAccessibleHypertext
    ::sal_Int32 SAL_CALL AccessibleEditableTextPara::getHyperLinkCount(  )
    {
        SvxAccessibleTextAdapter& rT = GetTextForwarder();
        const sal_Int32 nPara = GetParagraphIndex();

        sal_Int32 nHyperLinks = 0;
        sal_Int32 nFields = rT.GetFieldCount( nPara );
        for (sal_Int32 n = 0; n < nFields; ++n)
        {
            EFieldInfo aField = rT.GetFieldInfo( nPara, n );
            if ( dynamic_cast<const SvxURLField* >(aField.pFieldItem->GetField() ) != nullptr)
                nHyperLinks++;
        }
        return nHyperLinks;
    }

    css::uno::Reference< css::accessibility::XAccessibleHyperlink > SAL_CALL AccessibleEditableTextPara::getHyperLink( ::sal_Int32 nLinkIndex )
    {
        css::uno::Reference< css::accessibility::XAccessibleHyperlink > xRef;

        SvxAccessibleTextAdapter& rT = GetTextForwarder();
        const sal_Int32 nPara = GetParagraphIndex();

        sal_Int32 nHyperLink = 0;
        sal_Int32 nFields = rT.GetFieldCount( nPara );
        for (sal_Int32 n = 0; n < nFields; ++n)
        {
            EFieldInfo aField = rT.GetFieldInfo( nPara, n );
            if ( dynamic_cast<const SvxURLField* >(aField.pFieldItem->GetField()) != nullptr )
            {
                if ( nHyperLink == nLinkIndex )
                {
                    sal_Int32 nEEStart = aField.aPosition.nIndex;

                    // Translate EE Index to accessible index
                    sal_Int32 nStart = rT.CalcEditEngineIndex( nPara, nEEStart );
                    sal_Int32 nEnd = nStart + aField.aCurrentText.getLength();
                    xRef = new AccessibleHyperlink( rT, new SvxFieldItem( *aField.pFieldItem ), nStart, nEnd, aField.aCurrentText );
                    break;
                }
                nHyperLink++;
            }
        }

        return xRef;
    }

    ::sal_Int32 SAL_CALL AccessibleEditableTextPara::getHyperLinkIndex( ::sal_Int32 nCharIndex )
    {
        const sal_Int32 nPara = GetParagraphIndex();
        SvxAccessibleTextAdapter& rT = GetTextForwarder();

        const sal_Int32 nEEIndex = rT.CalcEditEngineIndex( nPara, nCharIndex );
        sal_Int32 nHLIndex = -1; //i123620
        sal_Int32 nHyperLink = 0;
        sal_Int32 nFields = rT.GetFieldCount( nPara );
        for (sal_Int32 n = 0; n < nFields; ++n)
        {
            EFieldInfo aField = rT.GetFieldInfo( nPara, n );
            if ( dynamic_cast<const SvxURLField* >( aField.pFieldItem->GetField() ) != nullptr)
            {
                if ( aField.aPosition.nIndex == nEEIndex )
                {
                    nHLIndex = nHyperLink;
                    break;
                }
                nHyperLink++;
            }
        }

        return nHLIndex;
    }

    // XAccessibleMultiLineText
    sal_Int32 SAL_CALL AccessibleEditableTextPara::getLineNumberAtIndex( sal_Int32 nIndex )
    {

        sal_Int32 nRes = -1;
        sal_Int32 nPara = GetParagraphIndex();

        SvxTextForwarder &rCacheTF = GetTextForwarder();
        const bool bValidPara = 0 <= nPara && nPara < rCacheTF.GetParagraphCount();
        DBG_ASSERT( bValidPara, "getLineNumberAtIndex: current paragraph index out of range" );
        if (bValidPara)
        {
            // we explicitly allow for the index to point at the character right behind the text
            if (0 > nIndex || nIndex > rCacheTF.GetTextLen( nPara ))
                throw lang::IndexOutOfBoundsException();
            nRes = rCacheTF.GetLineNumberAtIndex( nPara, nIndex );
        }
        return nRes;
    }

    // XAccessibleMultiLineText
    css::accessibility::TextSegment SAL_CALL AccessibleEditableTextPara::getTextAtLineNumber( sal_Int32 nLineNo )
    {

        css::accessibility::TextSegment aResult;
        sal_Int32 nPara = GetParagraphIndex();
        SvxTextForwarder &rCacheTF = GetTextForwarder();
        const bool bValidPara = 0 <= nPara && nPara < rCacheTF.GetParagraphCount();
        DBG_ASSERT( bValidPara, "getTextAtLineNumber: current paragraph index out of range" );
        if (bValidPara)
        {
            if (0 > nLineNo || nLineNo >= rCacheTF.GetLineCount( nPara ))
                throw lang::IndexOutOfBoundsException();
            sal_Int32 nStart = 0, nEnd = 0;
            rCacheTF.GetLineBoundaries( nStart, nEnd, nPara, nLineNo );
            if (nStart >= 0 && nEnd >=  0)
            {
                try
                {
                    aResult.SegmentText     = getTextRange( nStart, nEnd );
                    aResult.SegmentStart    = nStart;
                    aResult.SegmentEnd      = nEnd;
                }
                catch (const lang::IndexOutOfBoundsException&)
                {
                    // this is not the exception that should be raised in this function ...
                    DBG_UNHANDLED_EXCEPTION("editeng");
                }
            }
        }
        return aResult;
    }

    // XAccessibleMultiLineText
    css::accessibility::TextSegment SAL_CALL AccessibleEditableTextPara::getTextAtLineWithCaret(  )
    {

        css::accessibility::TextSegment aResult;
        try
        {
            aResult = getTextAtLineNumber( getNumberOfLineWithCaret() );
        }
        catch (const lang::IndexOutOfBoundsException&)
        {
            // this one needs to be caught since this interface does not allow for it.
        }
        return aResult;
    }

    // XAccessibleMultiLineText
    sal_Int32 SAL_CALL AccessibleEditableTextPara::getNumberOfLineWithCaret(  )
    {

        sal_Int32 nRes = -1;
        try
        {
            nRes = getLineNumberAtIndex( getCaretPosition() );
        }
        catch (const lang::IndexOutOfBoundsException&)
        {
            // this one needs to be caught since this interface does not allow for it.
        }
        return nRes;
    }


    // XServiceInfo
    OUString SAL_CALL AccessibleEditableTextPara::getImplementationName()
    {

        return "AccessibleEditableTextPara";
    }

    sal_Bool SAL_CALL AccessibleEditableTextPara::supportsService (const OUString& sServiceName)
    {

        return cppu::supportsService(this, sServiceName);
    }

    uno::Sequence< OUString> SAL_CALL AccessibleEditableTextPara::getSupportedServiceNames()
    {
        // #105185# Using correct service now
        return { OUString("com.sun.star.text.AccessibleParagraphView") };
    }

}  // end of namespace accessibility


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