    /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
    /*
     * This file is part of the LibreOffice project.
     *
     * This Source Code Form is subject to the terms of the Mozilla Public
     * License, v. 2.0. If a copy of the MPL was not distributed with this
     * file, You can obtain one at http://mozilla.org/MPL/2.0/.
     *
     * This file incorporates work covered by the following license notice:
     *
     *   Licensed to the Apache Software Foundation (ASF) under one or more
     *   contributor license agreements. See the NOTICE file distributed
     *   with this work for additional information regarding copyright
     *   ownership. The ASF licenses this file to you under the Apache
     *   License, Version 2.0 (the "License"); you may not use this file
     *   except in compliance with the License. You may obtain a copy of
     *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
     */

    #include <scitems.hxx>
    #include <editeng/eeitem.hxx>

    #include <memory>
    #include <AccessibleText.hxx>
    #include <AccessibleCell.hxx>
    #include <tabvwsh.hxx>
    #include <editutil.hxx>
    #include <cellvalue.hxx>
    #include <formulacell.hxx>
    #include <document.hxx>
    #include <scmod.hxx>
    #include <prevwsh.hxx>
    #include <docsh.hxx>
    #include <prevloc.hxx>
    #include <patattr.hxx>
    #include <inputwin.hxx>
    #include <editeng/unofored.hxx>
    #include <editeng/editview.hxx>
    #include <editeng/unoedhlp.hxx>
    #include <editeng/fhgtitem.hxx>
    #include <vcl/virdev.hxx>
    #include <editeng/editobj.hxx>
    #include <editeng/adjustitem.hxx>
    #include <editeng/justifyitem.hxx>
    #include <svx/svdmodel.hxx>
    #include <svx/algitem.hxx>
    #include <vcl/svapp.hxx>

    class ScViewForwarder : public SvxViewForwarder
    {
        ScTabViewShell*     mpViewShell;
        ScAddress           maCellPos;
        ScSplitPos          meSplitPos;
    public:
                            ScViewForwarder(ScTabViewShell* pViewShell, ScSplitPos eSplitPos, const ScAddress& rCell);

        virtual bool        IsValid() const override;
        virtual tools::Rectangle   GetVisArea() const override;
        virtual Point       LogicToPixel( const Point& rPoint, const MapMode& rMapMode ) const override;
        virtual Point       PixelToLogic( const Point& rPoint, const MapMode& rMapMode ) const override;

        void                SetInvalid();
    };

    ScViewForwarder::ScViewForwarder(ScTabViewShell* pViewShell, ScSplitPos eSplitPos, const ScAddress& rCell)
        :
        mpViewShell(pViewShell),
        maCellPos(rCell),
        meSplitPos(eSplitPos)
    {
    }

    bool ScViewForwarder::IsValid() const
    {
        return mpViewShell != nullptr;
    }

    tools::Rectangle ScViewForwarder::GetVisArea() const
    {
        tools::Rectangle aVisArea;
        if (mpViewShell)
        {
            vcl::Window* pWindow = mpViewShell->GetWindowByPos(meSplitPos);
            if (pWindow)
            {
                aVisArea.SetSize(pWindow->GetSizePixel());

                ScHSplitPos eWhichH = ((meSplitPos == SC_SPLIT_TOPLEFT) || (meSplitPos == SC_SPLIT_BOTTOMLEFT)) ?
                                        SC_SPLIT_LEFT : SC_SPLIT_RIGHT;
                ScVSplitPos eWhichV = ((meSplitPos == SC_SPLIT_TOPLEFT) || (meSplitPos == SC_SPLIT_TOPRIGHT)) ?
                                        SC_SPLIT_TOP : SC_SPLIT_BOTTOM;

                Point aBaseCellPos(mpViewShell->GetViewData().GetScrPos(mpViewShell->GetViewData().GetPosX(eWhichH),
                    mpViewShell->GetViewData().GetPosY(eWhichV), meSplitPos, true));
                Point aCellPos(mpViewShell->GetViewData().GetScrPos(maCellPos.Col(), maCellPos.Row(), meSplitPos, true));
                aVisArea.SetPos(aCellPos - aBaseCellPos);
            }
        }
        else
        {
            OSL_FAIL("this ViewForwarder is not valid");
        }
        return aVisArea;
    }

    Point ScViewForwarder::LogicToPixel( const Point& rPoint, const MapMode& rMapMode ) const
    {
        if (mpViewShell)
        {
            vcl::Window* pWindow = mpViewShell->GetWindowByPos(meSplitPos);
            if (pWindow)
                return pWindow->LogicToPixel( rPoint, rMapMode );
        }
        else
        {
            OSL_FAIL("this ViewForwarder is not valid");
        }
        return Point();
    }

    Point ScViewForwarder::PixelToLogic( const Point& rPoint, const MapMode& rMapMode ) const
    {
        if (mpViewShell)
        {
            vcl::Window* pWindow = mpViewShell->GetWindowByPos(meSplitPos);
            if (pWindow)
                return pWindow->PixelToLogic( rPoint, rMapMode );
        }
        else
        {
            OSL_FAIL("this ViewForwarder is not valid");
        }
        return Point();
    }

    void ScViewForwarder::SetInvalid()
    {
        mpViewShell = nullptr;
    }

    class ScEditObjectViewForwarder : public SvxViewForwarder
    {
        VclPtr<vcl::Window> mpWindow;
        // #i49561# EditView needed for access to its visible area.
        const EditView*     mpEditView;
    public:
                            ScEditObjectViewForwarder( vcl::Window* pWindow,
                                                       const EditView* _pEditView);

        virtual bool        IsValid() const override;
        virtual tools::Rectangle   GetVisArea() const override;
        virtual Point       LogicToPixel( const Point& rPoint, const MapMode& rMapMode ) const override;
        virtual Point       PixelToLogic( const Point& rPoint, const MapMode& rMapMode ) const override;

        void                SetInvalid();
    };

    ScEditObjectViewForwarder::ScEditObjectViewForwarder( vcl::Window* pWindow,
                                                          const EditView* _pEditView )
        :
        mpWindow(pWindow),
        mpEditView( _pEditView )
    {
    }

    bool ScEditObjectViewForwarder::IsValid() const
    {
        return (mpWindow != nullptr);
    }

    tools::Rectangle ScEditObjectViewForwarder::GetVisArea() const
    {
        tools::Rectangle aVisArea;
        if (mpWindow)
        {
            tools::Rectangle aVisRect(mpWindow->GetWindowExtentsRelative(mpWindow->GetAccessibleParentWindow()));

            aVisRect.SetPos(Point(0, 0));

            aVisArea = aVisRect;
        }
        else
        {
            OSL_FAIL("this ViewForwarder is not valid");
        }
        return aVisArea;
    }

    Point ScEditObjectViewForwarder::LogicToPixel( const Point& rPoint, const MapMode& rMapMode ) const
    {
        if (mpWindow)
        {
            // #i49561# - consider offset of the visible area
            // of the EditView before converting point to pixel.
            Point aPoint( rPoint );
            if ( mpEditView )
            {
                tools::Rectangle aEditViewVisArea( mpEditView->GetVisArea() );
                aPoint += aEditViewVisArea.TopLeft();
            }
            return mpWindow->LogicToPixel( aPoint, rMapMode );
        }
        else
        {
            OSL_FAIL("this ViewForwarder is not valid");
        }
        return Point();
    }

    Point ScEditObjectViewForwarder::PixelToLogic( const Point& rPoint, const MapMode& rMapMode ) const
    {
        if (mpWindow)
        {
            // #i49561# - consider offset of the visible area
            // of the EditView after converting point to logic.
            Point aPoint( mpWindow->PixelToLogic( rPoint, rMapMode ) );
            if ( mpEditView )
            {
                tools::Rectangle aEditViewVisArea( mpEditView->GetVisArea() );
                aPoint -= aEditViewVisArea.TopLeft();
            }
            return aPoint;
        }
        else
        {
            OSL_FAIL("this ViewForwarder is not valid");
        }
        return Point();
    }

    void ScEditObjectViewForwarder::SetInvalid()
    {
        mpWindow = nullptr;
    }

    class ScPreviewViewForwarder : public SvxViewForwarder
    {
    protected:
        ScPreviewShell*     mpViewShell;
    public:
        explicit            ScPreviewViewForwarder(ScPreviewShell* pViewShell);

        virtual bool        IsValid() const override;
        virtual tools::Rectangle   GetVisArea() const override;
        virtual Point       LogicToPixel( const Point& rPoint, const MapMode& rMapMode ) const override;
        virtual Point       PixelToLogic( const Point& rPoint, const MapMode& rMapMode ) const override;

        void                SetInvalid();

        tools::Rectangle GetVisRect() const;

        // clips the VisArea and calculates with the negative coordinates
        tools::Rectangle CorrectVisArea(const tools::Rectangle& rVisArea) const;
    };

    ScPreviewViewForwarder::ScPreviewViewForwarder(ScPreviewShell* pViewShell)
        : mpViewShell(pViewShell)
    {
    }

    bool ScPreviewViewForwarder::IsValid() const
    {
        return mpViewShell != nullptr;
    }

    tools::Rectangle ScPreviewViewForwarder::GetVisArea() const
    {
        OSL_FAIL("should be implemented in an abrevated class");
        return tools::Rectangle();
    }

    Point ScPreviewViewForwarder::LogicToPixel( const Point& rPoint, const MapMode& rMapMode ) const
    {
        if (mpViewShell)
        {
            vcl::Window* pWindow = mpViewShell->GetWindow();
            if (pWindow)
            {
                MapMode aMapMode(pWindow->GetMapMode().GetMapUnit());
                Point aPoint2( OutputDevice::LogicToLogic( rPoint, rMapMode, aMapMode) );
                return pWindow->LogicToPixel(aPoint2);
            }
        }
        else
        {
            OSL_FAIL("this ViewForwarder is not valid");
        }
        return Point();
    }

    Point ScPreviewViewForwarder::PixelToLogic( const Point& rPoint, const MapMode& rMapMode ) const
    {
        if (mpViewShell)
        {
            vcl::Window* pWindow = mpViewShell->GetWindow();
            if (pWindow)
            {
                MapMode aMapMode(pWindow->GetMapMode());
                aMapMode.SetOrigin(Point());
                Point aPoint1( pWindow->PixelToLogic( rPoint ) );
                Point aPoint2( OutputDevice::LogicToLogic( aPoint1,
                                                           MapMode(aMapMode.GetMapUnit()),
                                                           rMapMode ) );
                return aPoint2;
            }
        }
        else
        {
            OSL_FAIL("this ViewForwarder is not valid");
        }
        return Point();
    }

    void ScPreviewViewForwarder::SetInvalid()
    {
        mpViewShell = nullptr;
    }

    tools::Rectangle ScPreviewViewForwarder::GetVisRect() const
    {
        if ( mpViewShell )
        {
            Size aOutputSize;
            vcl::Window* pWindow = mpViewShell->GetWindow();
            if ( pWindow )
                aOutputSize = pWindow->GetOutputSizePixel();
            tools::Rectangle aVisRect( Point(), aOutputSize );
            return aVisRect;
        }
        return tools::Rectangle();
    }

    tools::Rectangle ScPreviewViewForwarder::CorrectVisArea(const tools::Rectangle& rVisArea) const
    {
        tools::Rectangle aVisArea(rVisArea);
        Point aPos = aVisArea.TopLeft(); // get first the position to remember negative positions after clipping

        vcl::Window* pWin = mpViewShell->GetWindow();
        if (pWin)
            aVisArea = pWin->GetWindowExtentsRelative(pWin).GetIntersection(aVisArea);

        sal_Int32 nX(aPos.getX());
        sal_Int32 nY(aPos.getY());

        if (nX > 0)
            nX = 0;
        else if (nX < 0)
            nX = -nX;
        if (nY > 0)
            nY = 0;
        else if (nY < 0)
            nY = -nY;
        aVisArea.SetPos(Point(nX, nY));

        return aVisArea;
    }

    class ScPreviewHeaderFooterViewForwarder : public ScPreviewViewForwarder
    {
        bool            mbHeader;
    public:
                            ScPreviewHeaderFooterViewForwarder(ScPreviewShell* pViewShell, bool bHeader);

        virtual tools::Rectangle   GetVisArea() const override;
    };

    ScPreviewHeaderFooterViewForwarder::ScPreviewHeaderFooterViewForwarder(ScPreviewShell* pViewShell, bool bHeader)
        :
        ScPreviewViewForwarder(pViewShell),
        mbHeader(bHeader)
    {
    }

    tools::Rectangle ScPreviewHeaderFooterViewForwarder::GetVisArea() const
    {
        tools::Rectangle aVisArea;
        if (mpViewShell)
        {
            const ScPreviewLocationData& rData = mpViewShell->GetLocationData();
            if ( mbHeader )
                rData.GetHeaderPosition( aVisArea );
            else
                rData.GetFooterPosition( aVisArea );

            aVisArea = CorrectVisArea(aVisArea);
        }
        else
        {
            OSL_FAIL("this ViewForwarder is not valid");
        }
        return aVisArea;
    }

    class ScPreviewCellViewForwarder : public ScPreviewViewForwarder
    {
        ScAddress           maCellPos;
    public:
                            ScPreviewCellViewForwarder(ScPreviewShell* pViewShell,
                                const ScAddress& aCellPos);

        virtual tools::Rectangle   GetVisArea() const override;
    };

    ScPreviewCellViewForwarder::ScPreviewCellViewForwarder(ScPreviewShell* pViewShell,
                                                           const ScAddress& aCellPos)
        :
        ScPreviewViewForwarder(pViewShell),
        maCellPos(aCellPos)
    {
    }

    tools::Rectangle ScPreviewCellViewForwarder::GetVisArea() const
    {
        tools::Rectangle aVisArea;
        if (mpViewShell)
        {
            const ScPreviewLocationData& rData = mpViewShell->GetLocationData();
            aVisArea = rData.GetCellOutputRect(maCellPos);

            aVisArea = CorrectVisArea(aVisArea);
        }
        else
        {
            OSL_FAIL("this ViewForwarder is not valid");
        }
        return aVisArea;
    }

    class ScPreviewHeaderCellViewForwarder : public ScPreviewViewForwarder
    {
        ScAddress           maCellPos;
        bool            mbColHeader;
    public:
                            ScPreviewHeaderCellViewForwarder(ScPreviewShell* pViewShell,
                                const ScAddress& aCellPos,
                                bool bColHeader);

        virtual tools::Rectangle   GetVisArea() const override;
    };

    ScPreviewHeaderCellViewForwarder::ScPreviewHeaderCellViewForwarder(ScPreviewShell* pViewShell,
                                                                       const ScAddress& aCellPos,
                                                                       bool bColHeader)
        :
        ScPreviewViewForwarder(pViewShell),
        maCellPos(aCellPos),
        mbColHeader(bColHeader)
    {
    }

    tools::Rectangle ScPreviewHeaderCellViewForwarder::GetVisArea() const
    {
        tools::Rectangle aVisArea;
        if (mpViewShell)
        {
            const ScPreviewLocationData& rData = mpViewShell->GetLocationData();
            aVisArea = rData.GetHeaderCellOutputRect(GetVisRect(), maCellPos, mbColHeader);

            aVisArea = CorrectVisArea(aVisArea);
        }
        else
        {
            OSL_FAIL("this ViewForwarder is not valid");
        }
        return aVisArea;
    }

    class ScPreviewNoteViewForwarder : public ScPreviewViewForwarder
    {
        ScAddress           maCellPos;
        bool            mbNoteMark;
    public:
                            ScPreviewNoteViewForwarder(ScPreviewShell* pViewShell,
                                const ScAddress& aCellPos,
                                bool bNoteMark);

        virtual tools::Rectangle   GetVisArea() const override;
    };

    ScPreviewNoteViewForwarder::ScPreviewNoteViewForwarder(ScPreviewShell* pViewShell,
                                                                       const ScAddress& aCellPos,
                                                                       bool bNoteMark)
        :
        ScPreviewViewForwarder(pViewShell),
        maCellPos(aCellPos),
        mbNoteMark(bNoteMark)
    {
    }

    tools::Rectangle ScPreviewNoteViewForwarder::GetVisArea() const
    {
        tools::Rectangle aVisArea;
        if (mpViewShell)
        {
            const ScPreviewLocationData& rData = mpViewShell->GetLocationData();
            aVisArea = rData.GetNoteInRangeOutputRect(GetVisRect(), mbNoteMark, maCellPos);

            aVisArea = CorrectVisArea(aVisArea);
        }
        else
        {
            OSL_FAIL("this ViewForwarder is not valid");
        }
        return aVisArea;
    }

    class ScEditViewForwarder : public SvxEditViewForwarder
    {
        EditView*           mpEditView;
        VclPtr<vcl::Window> mpWindow;
    public:
                            ScEditViewForwarder(EditView* pEditView, vcl::Window* pWin);

        virtual bool        IsValid() const override;
        virtual tools::Rectangle   GetVisArea() const override;
        virtual Point       LogicToPixel( const Point& rPoint, const MapMode& rMapMode ) const override;
        virtual Point       PixelToLogic( const Point& rPoint, const MapMode& rMapMode ) const override;
        virtual bool        GetSelection( ESelection& rSelection ) const override;
        virtual bool        SetSelection( const ESelection& rSelection ) override;
        virtual bool        Copy() override;
        virtual bool        Cut() override;
        virtual bool        Paste() override;

        void                SetInvalid();
    };

    ScEditViewForwarder::ScEditViewForwarder(EditView* pEditView, vcl::Window* pWin)
        : mpEditView(pEditView),
        mpWindow(pWin)
    {
    }

    bool ScEditViewForwarder::IsValid() const
    {
        return mpWindow && mpEditView;
    }

    tools::Rectangle ScEditViewForwarder::GetVisArea() const
    {
        tools::Rectangle aVisArea;
        if (IsValid() && mpEditView->GetEditEngine())
        {
            MapMode aMapMode(mpEditView->GetEditEngine()->GetRefMapMode());

            aVisArea = mpWindow->LogicToPixel( mpEditView->GetVisArea(), aMapMode );
        }
        else
        {
            OSL_FAIL("this EditViewForwarder is no longer valid");
        }
        return aVisArea;
    }

    Point ScEditViewForwarder::LogicToPixel( const Point& rPoint, const MapMode& rMapMode ) const
    {
        if (mpWindow)
            return mpWindow->LogicToPixel( rPoint, rMapMode );
        else
        {
            OSL_FAIL("this ViewForwarder is not valid");
        }
        return Point();
    }

    Point ScEditViewForwarder::PixelToLogic( const Point& rPoint, const MapMode& rMapMode ) const
    {
        if (mpWindow)
            return mpWindow->PixelToLogic( rPoint, rMapMode );
        else
        {
            OSL_FAIL("this ViewForwarder is not valid");
        }
        return Point();
    }

    bool ScEditViewForwarder::GetSelection( ESelection& rSelection ) const
    {
        bool bResult(false);
        if (IsValid())
        {
            rSelection = mpEditView->GetSelection();
            bResult = true;
        }
        else
        {
            OSL_FAIL("this ViewForwarder is not valid");
        }
        return bResult;
    }

    bool ScEditViewForwarder::SetSelection( const ESelection& rSelection )
    {
        bool bResult(false);
        if (IsValid())
        {
            mpEditView->SetSelection(rSelection);
            bResult = true;
        }
        else
        {
            OSL_FAIL("this ViewForwarder is not valid");
        }
        return bResult;
    }

    bool ScEditViewForwarder::Copy()
    {
        bool bResult(false);
        if (IsValid())
        {
            mpEditView->Copy();
            bResult = true;
        }
        else
        {
            OSL_FAIL("this ViewForwarder is not valid");
        }
        return bResult;
    }

    bool ScEditViewForwarder::Cut()
    {
        bool bResult(false);
        if (IsValid())
        {
            mpEditView->Cut();
            bResult = true;
        }
        else
        {
            OSL_FAIL("this ViewForwarder is not valid");
        }
        return bResult;
    }

    bool ScEditViewForwarder::Paste()
    {
        bool bResult(false);
        if (IsValid())
        {
            mpEditView->Paste();
            bResult = true;
        }
        else
        {
            OSL_FAIL("this ViewForwarder is not valid");
        }
        return bResult;
    }

    void ScEditViewForwarder::SetInvalid()
    {
        mpWindow = nullptr;
        mpEditView = nullptr;
    }

    //  ScAccessibleCellTextData: shared data between sub objects of a accessible cell text object

    ScAccessibleCellTextData::ScAccessibleCellTextData(ScTabViewShell* pViewShell,
            const ScAddress& rP, ScSplitPos eSplitPos, ScAccessibleCell* pAccCell)
        : ScAccessibleCellBaseTextData(GetDocShell(pViewShell), rP),
        mpViewShell(pViewShell),
        meSplitPos(eSplitPos),
        mpAccessibleCell( pAccCell )
    {
    }

    ScAccessibleCellTextData::~ScAccessibleCellTextData()
    {
        if (pEditEngine)
            pEditEngine->SetNotifyHdl(Link<EENotify&,void>());
        mpViewForwarder.reset();
    }

    void ScAccessibleCellTextData::Notify( SfxBroadcaster& rBC, const SfxHint& rHint )
    {
        if ( rHint.GetId() == SfxHintId::Dying )
        {
            mpViewShell = nullptr;                     // invalid now
            if (mpViewForwarder)
                mpViewForwarder->SetInvalid();
        }
        ScAccessibleCellBaseTextData::Notify(rBC, rHint);
    }

    ScAccessibleTextData* ScAccessibleCellTextData::Clone() const
    {
        return new ScAccessibleCellTextData( mpViewShell, aCellPos, meSplitPos, mpAccessibleCell );
    }

    SvxTextForwarder* ScAccessibleCellTextData::GetTextForwarder()
    {
        ScCellTextData::GetTextForwarder(); // creates Forwarder and EditEngine

        if ( pDocShell && pEditEngine && mpViewShell )
        {
            ScDocument& rDoc = pDocShell->GetDocument();
            long nSizeX, nSizeY;
            mpViewShell->GetViewData().GetMergeSizePixel(
                aCellPos.Col(), aCellPos.Row(), nSizeX, nSizeY);

            Size aSize(nSizeX, nSizeY);

            // #i92143# text getRangeExtents reports incorrect 'x' values for spreadsheet cells
            long nIndent = 0;
            const SvxHorJustifyItem* pHorJustifyItem = rDoc.GetAttr( aCellPos, ATTR_HOR_JUSTIFY );
            SvxCellHorJustify eHorJust = pHorJustifyItem ? pHorJustifyItem->GetValue() : SvxCellHorJustify::Standard;
            if ( eHorJust == SvxCellHorJustify::Left )
            {
                const SfxUInt16Item* pIndentItem = rDoc.GetAttr( aCellPos, ATTR_INDENT );
                if ( pIndentItem )
                {
                    nIndent = static_cast< long >( pIndentItem->GetValue() );
                }
            }

            const SvxMarginItem* pMarginItem = rDoc.GetAttr( aCellPos, ATTR_MARGIN );
            ScViewData& rViewData = mpViewShell->GetViewData();
            double nPPTX = rViewData.GetPPTX();
            double nPPTY = rViewData.GetPPTY();
            long nLeftM = ( pMarginItem ? static_cast< long >( ( pMarginItem->GetLeftMargin() + nIndent ) * nPPTX ) : 0 );
            long nTopM = ( pMarginItem ? static_cast< long >( pMarginItem->GetTopMargin() * nPPTY ) : 0 );
            long nRightM = ( pMarginItem ? static_cast< long >( pMarginItem->GetRightMargin() * nPPTX ) : 0 );
            long nBottomM = ( pMarginItem ? static_cast< long >( pMarginItem->GetBottomMargin() * nPPTY ) : 0 );
            long nWidth = aSize.getWidth() - nLeftM - nRightM;
            aSize.setWidth( nWidth );
            aSize.setHeight( aSize.getHeight() - nTopM - nBottomM );

            vcl::Window* pWin = mpViewShell->GetWindowByPos( meSplitPos );
            if ( pWin )
            {
                aSize = pWin->PixelToLogic( aSize, pEditEngine->GetRefMapMode() );
            }

            /*  #i19430# Gnopernicus reads text partly if it sticks out of the cell
                boundaries. This leads to wrong results in cases where the cell text
                is rotated, because rotation is not taken into account when calcu-
                lating the visible part of the text. In these cases we will expand
                the cell size passed as paper size to the edit engine. The function
                accessibility::AccessibleStaticTextBase::GetParagraphBoundingBox()
                (see svx/source/accessibility/AccessibleStaticTextBase.cxx) will
                return the size of the complete text then, which is used to expand
                the cell bounding box in ScAccessibleCell::GetBoundingBox()
                (see sc/source/ui/Accessibility/AccessibleCell.cxx). */
            const SfxInt32Item* pItem = rDoc.GetAttr( aCellPos, ATTR_ROTATE_VALUE );
            if( pItem && (pItem->GetValue() != 0) )
            {
                pEditEngine->SetPaperSize( Size( LONG_MAX, aSize.getHeight() ) );
                long nTxtWidth = static_cast< long >( pEditEngine->CalcTextWidth() );
                aSize.setWidth( std::max( aSize.getWidth(), nTxtWidth + 2 ) );
            }
            else
            {
                // #i92143# text getRangeExtents reports incorrect 'x' values for spreadsheet cells
                const SfxBoolItem* pLineBreakItem = rDoc.GetAttr( aCellPos, ATTR_LINEBREAK );
                bool bLineBreak = ( pLineBreakItem && pLineBreakItem->GetValue() );
                if ( !bLineBreak )
                {
                    long nTxtWidth = static_cast< long >( pEditEngine->CalcTextWidth() );
                    aSize.setWidth( ::std::max( aSize.getWidth(), nTxtWidth ) );
                }
            }

            pEditEngine->SetPaperSize( aSize );

            // #i92143# text getRangeExtents reports incorrect 'x' values for spreadsheet cells
            if ( eHorJust == SvxCellHorJustify::Standard && rDoc.HasValueData( aCellPos.Col(), aCellPos.Row(), aCellPos.Tab() ) )
            {
                pEditEngine->SetDefaultItem( SvxAdjustItem( SvxAdjust::Right, EE_PARA_JUST ) );
            }

            Size aTextSize;
            if ( pWin )
            {
                aTextSize = pWin->LogicToPixel( Size( pEditEngine->CalcTextWidth(), pEditEngine->GetTextHeight() ), pEditEngine->GetRefMapMode() );
            }
            long nTextWidth = aTextSize.Width();
            long nTextHeight = aTextSize.Height();

            long nOffsetX = nLeftM;
            long nDiffX = nTextWidth - nWidth;
            if ( nDiffX > 0 )
            {
                switch ( eHorJust )
                {
                    case SvxCellHorJustify::Right:
                        {
                            nOffsetX -= nDiffX;
                        }
                        break;
                    case SvxCellHorJustify::Center:
                        {
                            nOffsetX -= nDiffX / 2;
                        }
                        break;
                    default:
                        {
                        }
                        break;
                }
            }

            long nOffsetY = 0;
            const SvxVerJustifyItem* pVerJustifyItem = rDoc.GetAttr( aCellPos, ATTR_VER_JUSTIFY );
            SvxCellVerJustify eVerJust = ( pVerJustifyItem ? pVerJustifyItem->GetValue() : SvxCellVerJustify::Standard );
            switch ( eVerJust )
            {
                case SvxCellVerJustify::Standard:
                case SvxCellVerJustify::Bottom:
                    {
                        nOffsetY = nSizeY - nBottomM - nTextHeight;
                    }
                    break;
                case SvxCellVerJustify::Center:
                    {
                        nOffsetY = ( nSizeY - nTopM - nBottomM - nTextHeight ) / 2 + nTopM;
                    }
                    break;
                default:
                    {
                        nOffsetY = nTopM;
                    }
                    break;
            }

            if ( mpAccessibleCell )
            {
                mpAccessibleCell->SetOffset( Point( nOffsetX, nOffsetY ) );
            }

            pEditEngine->SetNotifyHdl( LINK(this, ScAccessibleCellTextData, NotifyHdl) );
        }

        return pForwarder.get();
    }

    SvxViewForwarder* ScAccessibleCellTextData::GetViewForwarder()
    {
        if (!mpViewForwarder)
            mpViewForwarder.reset(new ScViewForwarder(mpViewShell, meSplitPos, aCellPos));
        return mpViewForwarder.get();
    }

    SvxEditViewForwarder* ScAccessibleCellTextData::GetEditViewForwarder( bool /* bCreate */ )
    {
        //#102219#; there should no EditViewForwarder be, because the cell is now readonly in this interface
        return nullptr;
    }

    IMPL_LINK(ScAccessibleTextData, NotifyHdl, EENotify&, aNotify, void)
    {
        ::std::unique_ptr< SfxHint > aHint = SvxEditSourceHelper::EENotification2Hint( &aNotify );

        if( aHint.get() )
            GetBroadcaster().Broadcast( *aHint.get() );
    }

    ScDocShell* ScAccessibleCellTextData::GetDocShell(ScTabViewShell* pViewShell)
    {
        ScDocShell* pDocSh = nullptr;
        if (pViewShell)
            pDocSh = pViewShell->GetViewData().GetDocShell();
        return pDocSh;
    }

    ScAccessibleEditObjectTextData::ScAccessibleEditObjectTextData(EditView* pEditView, vcl::Window* pWin, bool isClone)
        :
        mpEditView(pEditView),
        mpEditEngine(pEditView ? pEditView->GetEditEngine() : nullptr),
        mpWindow(pWin)
    {
        // If the object is cloned, do NOT add notify hdl.
        mbIsCloned = isClone;
        if (mpEditEngine && !mbIsCloned)
            mpEditEngine->SetNotifyHdl( LINK(this, ScAccessibleEditObjectTextData, NotifyHdl) );
    }

    ScAccessibleEditObjectTextData::~ScAccessibleEditObjectTextData()
    {
        // If the object is cloned, do NOT set notify hdl.
        if (mpEditEngine && !mbIsCloned)
            mpEditEngine->SetNotifyHdl(Link<EENotify&,void>());
        mpViewForwarder.reset();
        mpEditViewForwarder.reset();
        mpForwarder.reset();
    }

    void ScAccessibleEditObjectTextData::Notify( SfxBroadcaster& rBC, const SfxHint& rHint )
    {
        if ( rHint.GetId() == SfxHintId::Dying )
        {
            mpWindow = nullptr;
            mpEditView = nullptr;
            mpEditEngine = nullptr;
            mpForwarder.reset();
            if (mpViewForwarder)
                mpViewForwarder->SetInvalid();
            if (mpEditViewForwarder)
                mpEditViewForwarder->SetInvalid();
        }
        ScAccessibleTextData::Notify(rBC, rHint);
    }

    ScAccessibleTextData* ScAccessibleEditObjectTextData::Clone() const
    {
        // Add para to indicate the object is cloned
        return new ScAccessibleEditObjectTextData(mpEditView, mpWindow, true);
    }

    SvxTextForwarder* ScAccessibleEditObjectTextData::GetTextForwarder()
    {
        if ((!mpForwarder && mpEditView) || (mpEditEngine && !mpEditEngine->GetNotifyHdl().IsSet()))
        {
            if (!mpEditEngine)
                mpEditEngine = mpEditView->GetEditEngine();
            // If the object is cloned, do NOT add notify hdl.
            if (mpEditEngine && !mpEditEngine->GetNotifyHdl().IsSet()&&!mbIsCloned)
                mpEditEngine->SetNotifyHdl( LINK(this, ScAccessibleEditObjectTextData, NotifyHdl) );
            if(!mpForwarder)
                mpForwarder.reset(new SvxEditEngineForwarder(*mpEditEngine));
        }
        return mpForwarder.get();
    }

    SvxViewForwarder* ScAccessibleEditObjectTextData::GetViewForwarder()
    {
        if (!mpViewForwarder)
        {
            // i#49561 Get right-aligned cell content to be read by screenreader.
            mpViewForwarder.reset(new ScEditObjectViewForwarder( mpWindow, mpEditView ));
        }
        return mpViewForwarder.get();
    }

    SvxEditViewForwarder* ScAccessibleEditObjectTextData::GetEditViewForwarder( bool bCreate )
    {
        if (!mpEditViewForwarder && mpEditView)
            mpEditViewForwarder.reset(new ScEditViewForwarder(mpEditView, mpWindow));
        if (bCreate)
        {
            if (!mpEditView && mpEditViewForwarder)
            {
                mpEditViewForwarder.reset();
            }
        }
        return mpEditViewForwarder.get();
    }

    IMPL_LINK(ScAccessibleEditObjectTextData, NotifyHdl, EENotify&, rNotify, void)
    {
        ::std::unique_ptr< SfxHint > aHint = SvxEditSourceHelper::EENotification2Hint( &rNotify );

        if( aHint.get() )
            GetBroadcaster().Broadcast( *aHint.get() );
    }

    ScAccessibleEditLineTextData::ScAccessibleEditLineTextData(EditView* pEditView, vcl::Window* pWin)
        :
        ScAccessibleEditObjectTextData(pEditView, pWin),
        mbEditEngineCreated(false)
    {
        ScTextWnd* pTxtWnd = dynamic_cast<ScTextWnd*>( pWin );

        if (pTxtWnd)
            pTxtWnd->InsertAccessibleTextData( *this );
    }

    ScAccessibleEditLineTextData::~ScAccessibleEditLineTextData()
    {
        ScTextWnd* pTxtWnd = dynamic_cast< ScTextWnd* >(mpWindow.get());

        if (pTxtWnd)
        {
            assert(!pTxtWnd->IsDisposed());
            pTxtWnd->RemoveAccessibleTextData( *this );
        }

        if (mbEditEngineCreated && mpEditEngine)
        {
            delete mpEditEngine;
            mpEditEngine = nullptr;    // don't access in ScAccessibleEditObjectTextData dtor!
        }
        else if (pTxtWnd && pTxtWnd->HasEditView() && pTxtWnd->GetEditView()->GetEditEngine())
        {
            //  the NotifyHdl also has to be removed from the ScTextWnd's EditEngine
            //  (it's set in ScAccessibleEditLineTextData::GetTextForwarder, and mpEditEngine
            //  is reset there)
            pTxtWnd->GetEditView()->GetEditEngine()->SetNotifyHdl(Link<EENotify&,void>());
        }
    }

    void ScAccessibleEditLineTextData::Dispose()
    {
        ScTextWnd* pTxtWnd = dynamic_cast<ScTextWnd*>(mpWindow.get());

        if (pTxtWnd)
        {
            assert(!pTxtWnd->IsDisposed());
            pTxtWnd->RemoveAccessibleTextData( *this );
        }

        ResetEditMode();
        mpWindow = nullptr;
    }

    ScAccessibleTextData* ScAccessibleEditLineTextData::Clone() const
    {
        return new ScAccessibleEditLineTextData(mpEditView, mpWindow);
    }

    SvxTextForwarder* ScAccessibleEditLineTextData::GetTextForwarder()
    {
        ScTextWnd* pTxtWnd = dynamic_cast<ScTextWnd*>(mpWindow.get());

        if (pTxtWnd)
        {
            if (pTxtWnd->HasEditView())
            {
                mpEditView = pTxtWnd->GetEditView();

                if (mbEditEngineCreated && mpEditEngine)
                    ResetEditMode();
                mbEditEngineCreated = false;

                mpEditView = pTxtWnd->GetEditView();
                ScAccessibleEditObjectTextData::GetTextForwarder(); // fill the mpForwarder
                mpEditEngine = nullptr;
            }
            else
            {
                mpEditView = nullptr;

                if (mpEditEngine && !mbEditEngineCreated)
                    ResetEditMode();
                if (!mpEditEngine)
                {
                    SfxItemPool* pEnginePool = EditEngine::CreatePool();
                    pEnginePool->FreezeIdRanges();
                    mpEditEngine = new ScFieldEditEngine(nullptr, pEnginePool, nullptr, true);
                    mbEditEngineCreated = true;
                    mpEditEngine->EnableUndo( false );
                    mpEditEngine->SetRefMapMode(MapMode(MapUnit::Map100thMM));
                    mpForwarder.reset(new SvxEditEngineForwarder(*mpEditEngine));

                    mpEditEngine->SetText(pTxtWnd->GetTextString());

                    Size aSize(pTxtWnd->GetSizePixel());

                    aSize = pTxtWnd->PixelToLogic(aSize, mpEditEngine->GetRefMapMode());

                    mpEditEngine->SetPaperSize(aSize);

                    mpEditEngine->SetNotifyHdl( LINK(this, ScAccessibleEditObjectTextData, NotifyHdl) );
                }
            }
        }
        return mpForwarder.get();
    }

    SvxEditViewForwarder* ScAccessibleEditLineTextData::GetEditViewForwarder( bool bCreate )
    {
        ScTextWnd* pTxtWnd = dynamic_cast<ScTextWnd*>(mpWindow.get());

        if (pTxtWnd)
        {
            if (!pTxtWnd->HasEditView() && bCreate)
            {
                if ( !pTxtWnd->IsInputActive() )
                {
                    pTxtWnd->StartEditEngine();
                    pTxtWnd->GrabFocus();

                    mpEditView = pTxtWnd->GetEditView();
                }
            }
        }

        return ScAccessibleEditObjectTextData::GetEditViewForwarder(bCreate);
    }

    void ScAccessibleEditLineTextData::ResetEditMode()
    {
        ScTextWnd* pTxtWnd = dynamic_cast<ScTextWnd*>(mpWindow.get());

        if (mbEditEngineCreated && mpEditEngine)
            delete mpEditEngine;
        else if (pTxtWnd && pTxtWnd->HasEditView() && pTxtWnd->GetEditView()->GetEditEngine())
            pTxtWnd->GetEditView()->GetEditEngine()->SetNotifyHdl(Link<EENotify&,void>());
        mpEditEngine = nullptr;

        mpForwarder.reset();
        mpEditViewForwarder.reset();
        mpViewForwarder.reset();
        mbEditEngineCreated = false;
    }

    void ScAccessibleEditLineTextData::TextChanged()
    {
        if (mbEditEngineCreated && mpEditEngine)
        {
            ScTextWnd* pTxtWnd = dynamic_cast<ScTextWnd*>(mpWindow.get());

            if (pTxtWnd)
                mpEditEngine->SetText(pTxtWnd->GetTextString());
        }
    }

    void ScAccessibleEditLineTextData::StartEdit()
    {
        ResetEditMode();
        mpEditView = nullptr;

        // send SdrHintKind::BeginEdit
        SdrHint aHint(SdrHintKind::BeginEdit);
        GetBroadcaster().Broadcast( aHint );
    }

    void ScAccessibleEditLineTextData::EndEdit()
    {
        // send SdrHintKind::EndEdit
        SdrHint aHint(SdrHintKind::EndEdit);
        GetBroadcaster().Broadcast( aHint );

        ResetEditMode();
        mpEditView = nullptr;
    }

    //  ScAccessiblePreviewCellTextData: shared data between sub objects of a accessible cell text object

    ScAccessiblePreviewCellTextData::ScAccessiblePreviewCellTextData(ScPreviewShell* pViewShell,
                                const ScAddress& rP)
        : ScAccessibleCellBaseTextData(GetDocShell(pViewShell), rP),
        mpViewShell(pViewShell)
    {
    }

    ScAccessiblePreviewCellTextData::~ScAccessiblePreviewCellTextData()
    {
        if (pEditEngine)
            pEditEngine->SetNotifyHdl(Link<EENotify&,void>());
        mpViewForwarder.reset();
    }

    void ScAccessiblePreviewCellTextData::Notify( SfxBroadcaster& rBC, const SfxHint& rHint )
    {
        if ( rHint.GetId() == SfxHintId::Dying )
        {
            mpViewShell = nullptr;                     // invalid now
            if (mpViewForwarder)
                mpViewForwarder->SetInvalid();
        }
        ScAccessibleCellBaseTextData::Notify(rBC, rHint);
    }

    ScAccessibleTextData* ScAccessiblePreviewCellTextData::Clone() const
    {
        return new ScAccessiblePreviewCellTextData(mpViewShell, aCellPos);
    }

    SvxTextForwarder* ScAccessiblePreviewCellTextData::GetTextForwarder()
    {
        bool bEditEngineBefore(pEditEngine != nullptr);

        ScCellTextData::GetTextForwarder(); // creates Forwarder and EditEngine

        if (!bEditEngineBefore && pEditEngine)
        {
            Size aSize(mpViewShell->GetLocationData().GetCellOutputRect(aCellPos).GetSize());
            vcl::Window* pWin = mpViewShell->GetWindow();
            if (pWin)
                aSize = pWin->PixelToLogic(aSize, pEditEngine->GetRefMapMode());
            pEditEngine->SetPaperSize(aSize);
        }

        if (pEditEngine)
            pEditEngine->SetNotifyHdl( LINK(this, ScAccessiblePreviewCellTextData, NotifyHdl) );

        return pForwarder.get();
    }

    SvxViewForwarder* ScAccessiblePreviewCellTextData::GetViewForwarder()
    {
        if (!mpViewForwarder)
            mpViewForwarder.reset(new ScPreviewCellViewForwarder(mpViewShell, aCellPos));
        return mpViewForwarder.get();
    }

    ScDocShell* ScAccessiblePreviewCellTextData::GetDocShell(ScPreviewShell* pViewShell)
    {
        ScDocShell* pDocSh = nullptr;
        if (pViewShell)
            pDocSh = static_cast<ScDocShell*>( pViewShell->GetDocument().GetDocumentShell());
        return pDocSh;
    }

    //  ScAccessiblePreviewHeaderCellTextData: shared data between sub objects of a accessible cell text object

    ScAccessiblePreviewHeaderCellTextData::ScAccessiblePreviewHeaderCellTextData(ScPreviewShell* pViewShell,
                const OUString& rText, const ScAddress& rP, bool bColHeader, bool bRowHeader)
        : ScAccessibleCellBaseTextData(GetDocShell(pViewShell), rP),
        mpViewShell(pViewShell),
        maText(rText),
        mbColHeader(bColHeader),
        mbRowHeader(bRowHeader)
    {
    }

    ScAccessiblePreviewHeaderCellTextData::~ScAccessiblePreviewHeaderCellTextData()
    {
        if (pEditEngine)
            pEditEngine->SetNotifyHdl(Link<EENotify&,void>());
        mpViewForwarder.reset();
    }

    void ScAccessiblePreviewHeaderCellTextData::Notify( SfxBroadcaster& rBC, const SfxHint& rHint )
    {
        if ( rHint.GetId() == SfxHintId::Dying )
        {
            mpViewShell = nullptr;                     // invalid now
            if (mpViewForwarder)
                mpViewForwarder->SetInvalid();
        }
        ScAccessibleCellBaseTextData::Notify(rBC, rHint);
    }

    ScAccessibleTextData* ScAccessiblePreviewHeaderCellTextData::Clone() const
    {
        return new ScAccessiblePreviewHeaderCellTextData(mpViewShell, maText, aCellPos, mbColHeader, mbRowHeader);
    }

    SvxTextForwarder* ScAccessiblePreviewHeaderCellTextData::GetTextForwarder()
    {
        if (!pEditEngine)
        {
            if ( pDocShell )
            {
                ScDocument& rDoc = pDocShell->GetDocument();
                pEditEngine = rDoc.CreateFieldEditEngine();
            }
            else
            {
                SfxItemPool* pEnginePool = EditEngine::CreatePool();
                pEnginePool->FreezeIdRanges();
                pEditEngine.reset( new ScFieldEditEngine(nullptr, pEnginePool, nullptr, true) );
            }
            pEditEngine->EnableUndo( false );
            if (pDocShell)
                pEditEngine->SetRefDevice(pDocShell->GetRefDevice());
            else
                pEditEngine->SetRefMapMode(MapMode(MapUnit::Map100thMM));
            pForwarder.reset( new SvxEditEngineForwarder(*pEditEngine) );
        }

        if (bDataValid)
            return pForwarder.get();

        if (!maText.isEmpty())
        {
            if ( mpViewShell  )
            {
                Size aOutputSize;
                vcl::Window* pWindow = mpViewShell->GetWindow();
                if ( pWindow )
                    aOutputSize = pWindow->GetOutputSizePixel();
                tools::Rectangle aVisRect( Point(), aOutputSize );
                Size aSize(mpViewShell->GetLocationData().GetHeaderCellOutputRect(aVisRect, aCellPos, mbColHeader).GetSize());
                if (pWindow)
                    aSize = pWindow->PixelToLogic(aSize, pEditEngine->GetRefMapMode());
                pEditEngine->SetPaperSize(aSize);
            }
            pEditEngine->SetText( maText );
        }

        bDataValid = true;

        pEditEngine->SetNotifyHdl( LINK(this, ScAccessiblePreviewHeaderCellTextData, NotifyHdl) );

        return pForwarder.get();
    }

    SvxViewForwarder* ScAccessiblePreviewHeaderCellTextData::GetViewForwarder()
    {
        if (!mpViewForwarder)
            mpViewForwarder.reset(new ScPreviewHeaderCellViewForwarder(mpViewShell, aCellPos, mbColHeader));
        return mpViewForwarder.get();
    }

    ScDocShell* ScAccessiblePreviewHeaderCellTextData::GetDocShell(ScPreviewShell* pViewShell)
    {
        ScDocShell* pDocSh = nullptr;
        if (pViewShell)
            pDocSh = static_cast<ScDocShell*>(pViewShell->GetDocument().GetDocumentShell());
        return pDocSh;
    }

    ScAccessibleHeaderTextData::ScAccessibleHeaderTextData(ScPreviewShell* pViewShell,
                                const EditTextObject* pEditObj, bool bHeader, SvxAdjust eAdjust)
        :
        mpViewForwarder(nullptr),
        mpViewShell(pViewShell),
        mpDocSh(nullptr),
        mpEditObj(pEditObj),
        mbHeader(bHeader),
        mbDataValid(false),
        meAdjust(eAdjust)
    {
        if (pViewShell)
            mpDocSh = static_cast<ScDocShell*>(pViewShell->GetDocument().GetDocumentShell());
        if (mpDocSh)
            mpDocSh->GetDocument().AddUnoObject(*this);
    }

    ScAccessibleHeaderTextData::~ScAccessibleHeaderTextData()
    {
        SolarMutexGuard aGuard;     //  needed for EditEngine dtor

        if (mpDocSh)
            mpDocSh->GetDocument().RemoveUnoObject(*this);
        if (mpEditEngine)
            mpEditEngine->SetNotifyHdl(Link<EENotify&,void>());
        mpEditEngine.reset();
        mpForwarder.reset();
    }

    ScAccessibleTextData* ScAccessibleHeaderTextData::Clone() const
    {
        return new ScAccessibleHeaderTextData(mpViewShell, mpEditObj, mbHeader, meAdjust);
    }

    void ScAccessibleHeaderTextData::Notify( SfxBroadcaster&, const SfxHint& rHint )
    {
        if ( rHint.GetId() == SfxHintId::Dying )
        {
            mpViewShell = nullptr;// invalid now
            mpDocSh = nullptr;
            if (mpViewForwarder)
                mpViewForwarder->SetInvalid();
        }
    }

    SvxTextForwarder* ScAccessibleHeaderTextData::GetTextForwarder()
    {
        if (!mpEditEngine)
        {
            SfxItemPool* pEnginePool = EditEngine::CreatePool();
            pEnginePool->FreezeIdRanges();
            std::unique_ptr<ScHeaderEditEngine> pHdrEngine(new ScHeaderEditEngine( pEnginePool ));

            pHdrEngine->EnableUndo( false );
            pHdrEngine->SetRefMapMode(MapMode(MapUnit::MapTwip));

            //  default font must be set, independently of document
            //  -> use global pool from module

            SfxItemSet aDefaults( pHdrEngine->GetEmptyItemSet() );
            const ScPatternAttr& rPattern = SC_MOD()->GetPool().GetDefaultItem(ATTR_PATTERN);
            rPattern.FillEditItemSet( &aDefaults );
            //  FillEditItemSet adjusts font height to 1/100th mm,
            //  but for header/footer twips is needed, as in the PatternAttr:
            std::unique_ptr<SfxPoolItem> pNewItem(rPattern.GetItem(ATTR_FONT_HEIGHT).CloneSetWhich(EE_CHAR_FONTHEIGHT));
            aDefaults.Put( *pNewItem );
            pNewItem.reset(rPattern.GetItem(ATTR_CJK_FONT_HEIGHT).CloneSetWhich(EE_CHAR_FONTHEIGHT_CJK));
            aDefaults.Put( *pNewItem );
            pNewItem.reset(rPattern.GetItem(ATTR_CTL_FONT_HEIGHT).CloneSetWhich(EE_CHAR_FONTHEIGHT_CTL));
            aDefaults.Put( *pNewItem );
            aDefaults.Put( SvxAdjustItem( meAdjust, EE_PARA_JUST ) );
            pHdrEngine->SetDefaults( aDefaults );

            ScHeaderFieldData aData;
            if (mpViewShell)
                mpViewShell->FillFieldData(aData);
            else
                ScHeaderFooterTextObj::FillDummyFieldData( aData );
            pHdrEngine->SetData( aData );

            mpEditEngine = std::move(pHdrEngine);
            mpForwarder.reset(new SvxEditEngineForwarder(*mpEditEngine));
        }

        if (mbDataValid)
            return mpForwarder.get();

        if ( mpViewShell  )
        {
            tools::Rectangle aVisRect;
            mpViewShell->GetLocationData().GetHeaderPosition(aVisRect);
            Size aSize(aVisRect.GetSize());
            vcl::Window* pWin = mpViewShell->GetWindow();
            if (pWin)
                aSize = pWin->PixelToLogic(aSize, mpEditEngine->GetRefMapMode());
            mpEditEngine->SetPaperSize(aSize);
        }
        if (mpEditObj)
            mpEditEngine->SetText(*mpEditObj);

        mbDataValid = true;
        return mpForwarder.get();
    }

    SvxViewForwarder* ScAccessibleHeaderTextData::GetViewForwarder()
    {
        if (!mpViewForwarder)
            mpViewForwarder = new ScPreviewHeaderFooterViewForwarder(mpViewShell, mbHeader);
        return mpViewForwarder;
    }

    ScAccessibleNoteTextData::ScAccessibleNoteTextData(ScPreviewShell* pViewShell,
                                const OUString& sText, const ScAddress& aCellPos, bool bMarkNote)
        :
        mpViewForwarder(nullptr),
        mpViewShell(pViewShell),
        mpDocSh(nullptr),
        msText(sText),
        maCellPos(aCellPos),
        mbMarkNote(bMarkNote),
        mbDataValid(false)
    {
        if (pViewShell)
            mpDocSh = static_cast<ScDocShell*>(pViewShell->GetDocument().GetDocumentShell());
        if (mpDocSh)
            mpDocSh->GetDocument().AddUnoObject(*this);
    }

    ScAccessibleNoteTextData::~ScAccessibleNoteTextData()
    {
        SolarMutexGuard aGuard;     //  needed for EditEngine dtor

        if (mpDocSh)
            mpDocSh->GetDocument().RemoveUnoObject(*this);
        if (mpEditEngine)
            mpEditEngine->SetNotifyHdl(Link<EENotify&,void>());
        mpEditEngine.reset();
        mpForwarder.reset();
    }

    ScAccessibleTextData* ScAccessibleNoteTextData::Clone() const
    {
        return new ScAccessibleNoteTextData(mpViewShell, msText, maCellPos, mbMarkNote);
    }

    void ScAccessibleNoteTextData::Notify( SfxBroadcaster&, const SfxHint& rHint )
    {
        if ( rHint.GetId() == SfxHintId::Dying )
        {
            mpViewShell = nullptr;// invalid now
            mpDocSh = nullptr;
            if (mpViewForwarder)
                mpViewForwarder->SetInvalid();
        }
    }

    SvxTextForwarder* ScAccessibleNoteTextData::GetTextForwarder()
    {
        if (!mpEditEngine)
        {
            if ( mpDocSh )
            {
                ScDocument& rDoc = mpDocSh->GetDocument();
                mpEditEngine = rDoc.CreateFieldEditEngine();
            }
            else
            {
                SfxItemPool* pEnginePool = EditEngine::CreatePool();
                pEnginePool->FreezeIdRanges();
                mpEditEngine.reset( new ScFieldEditEngine(nullptr, pEnginePool, nullptr, true) );
            }
            mpEditEngine->EnableUndo( false );
            if (mpDocSh)
                mpEditEngine->SetRefDevice(mpDocSh->GetRefDevice());
            else
                mpEditEngine->SetRefMapMode(MapMode(MapUnit::Map100thMM));
            mpForwarder.reset( new SvxEditEngineForwarder(*mpEditEngine) );
        }

        if (mbDataValid)
            return mpForwarder.get();

        if (!msText.isEmpty())
        {

            if ( mpViewShell  )
            {
                Size aOutputSize;
                vcl::Window* pWindow = mpViewShell->GetWindow();
                if ( pWindow )
                    aOutputSize = pWindow->GetOutputSizePixel();
                tools::Rectangle aVisRect( Point(), aOutputSize );
                Size aSize(mpViewShell->GetLocationData().GetNoteInRangeOutputRect(aVisRect, mbMarkNote, maCellPos).GetSize());
                if (pWindow)
                    aSize = pWindow->PixelToLogic(aSize, mpEditEngine->GetRefMapMode());
                mpEditEngine->SetPaperSize(aSize);
            }
            mpEditEngine->SetText( msText );
        }

        mbDataValid = true;

        mpEditEngine->SetNotifyHdl( LINK(this, ScAccessibleNoteTextData, NotifyHdl) );

        return mpForwarder.get();
    }

    SvxViewForwarder* ScAccessibleNoteTextData::GetViewForwarder()
    {
        if (!mpViewForwarder)
            mpViewForwarder = new ScPreviewNoteViewForwarder(mpViewShell, maCellPos, mbMarkNote);
        return mpViewForwarder;
    }

    // CSV import =================================================================

    class ScCsvViewForwarder : public SvxViewForwarder
    {
        tools::Rectangle                   maBoundBox;
        VclPtr<vcl::Window>         mpWindow;

    public:
        explicit                    ScCsvViewForwarder( vcl::Window* pWindow, const tools::Rectangle& rBoundBox );

        virtual bool                IsValid() const override;
        virtual tools::Rectangle           GetVisArea() const override;
        virtual Point               LogicToPixel( const Point& rPoint, const MapMode& rMapMode ) const override;
        virtual Point               PixelToLogic( const Point& rPoint, const MapMode& rMapMode ) const override;

        void                        SetInvalid();
    };

    ScCsvViewForwarder::ScCsvViewForwarder( vcl::Window* pWindow, const tools::Rectangle& rBoundBox ) :
        maBoundBox( rBoundBox ),
        mpWindow( pWindow )
    {
    }

    bool ScCsvViewForwarder::IsValid() const
    {
        return mpWindow != nullptr;
    }

    tools::Rectangle ScCsvViewForwarder::GetVisArea() const
    {
        return maBoundBox;
    }

    Point ScCsvViewForwarder::LogicToPixel( const Point& rPoint, const MapMode& rMapMode ) const
    {
        if( !mpWindow ) return Point();
        return mpWindow->LogicToPixel( rPoint, rMapMode );
    }

    Point ScCsvViewForwarder::PixelToLogic( const Point& rPoint, const MapMode& rMapMode ) const
    {
        if( !mpWindow ) return Point();
        return mpWindow->PixelToLogic( rPoint, rMapMode );
    }

    void ScCsvViewForwarder::SetInvalid()
    {
        mpWindow = nullptr;
    }

    ScAccessibleCsvTextData::ScAccessibleCsvTextData(
            vcl::Window* pWindow, EditEngine* pEditEngine,
            const OUString& rCellText, const tools::Rectangle& rBoundBox, const Size& rCellSize ) :
        mpWindow( pWindow ),
        mpEditEngine( pEditEngine ),
        maCellText( rCellText ),
        maBoundBox( rBoundBox ),
        maCellSize( rCellSize )
    {
    }

    ScAccessibleCsvTextData::~ScAccessibleCsvTextData()
    {
    }

    void ScAccessibleCsvTextData::Notify( SfxBroadcaster& rBC, const SfxHint& rHint )
    {
        if ( rHint.GetId() == SfxHintId::Dying )
        {
            mpWindow = nullptr;
            mpEditEngine = nullptr;
            if (mpViewForwarder.get())
                mpViewForwarder->SetInvalid();
        }
        ScAccessibleTextData::Notify( rBC, rHint );
    }

    ScAccessibleTextData* ScAccessibleCsvTextData::Clone() const
    {
        return new ScAccessibleCsvTextData( mpWindow, mpEditEngine, maCellText, maBoundBox, maCellSize );
    }

    SvxTextForwarder* ScAccessibleCsvTextData::GetTextForwarder()
    {
        if( mpEditEngine )
        {
            mpEditEngine->SetPaperSize( maCellSize );
            mpEditEngine->SetText( maCellText );
            if( !mpTextForwarder.get() )
                mpTextForwarder.reset( new SvxEditEngineForwarder( *mpEditEngine ) );
        }
        else
            mpTextForwarder.reset();
        return mpTextForwarder.get();
    }

    SvxViewForwarder* ScAccessibleCsvTextData::GetViewForwarder()
    {
        if( !mpViewForwarder.get() )
            mpViewForwarder.reset( new ScCsvViewForwarder( mpWindow, maBoundBox ) );
        return mpViewForwarder.get();
    }

    SvxEditViewForwarder* ScAccessibleCsvTextData::GetEditViewForwarder( bool /* bCreate */ )
    {
        return nullptr;
    }

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

↑ V678 An object is used as an argument to its own method. Consider checking the first actual argument of the 'GetWindowExtentsRelative' function.