Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

12 files changed, 8756 insertions, 0 deletions

diff --git a/vcl/source/edit/textdat2.hxx b/vcl/source/edit/textdat2.hxx
new file mode 100644
index 000000000..c620f91ad
--- /dev/null
+++ b/vcl/source/edit/textdat2.hxx
@@ -0,0 +1,284 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_VCL_SOURCE_EDIT_TEXTDAT2_HXX
+#define INCLUDED_VCL_SOURCE_EDIT_TEXTDAT2_HXX
+
+#include <vcl/seleng.hxx>
+#include <vcl/cursor.hxx>
+#include <vcl/idle.hxx>
+#include <vcl/textdata.hxx>
+
+#include <cstddef>
+#include <limits>
+#include <vector>
+
+class TextNode;
+class TextView;
+
+#define PORTIONKIND_TEXT        0
+#define PORTIONKIND_TAB         1
+
+#define DELMODE_SIMPLE          0
+#define DELMODE_RESTOFWORD      1
+#define DELMODE_RESTOFCONTENT   2
+
+#define DEL_LEFT    1
+#define DEL_RIGHT   2
+#define TRAVEL_X_DONTKNOW   0xFFFF
+#define MAXCHARSINPARA      0x3FFF-CHARPOSGROW
+
+#define LINE_SEP    0x0A
+
+class TETextPortion
+{
+private:
+    tools::Long     nWidth;
+    sal_Int32       nLen;
+    sal_uInt8       nKind;
+    bool            bRightToLeft;
+
+public:
+                TETextPortion( sal_Int32 nL )
+                    : nWidth {-1}
+                    , nLen {nL}
+                    , nKind {PORTIONKIND_TEXT}
+                    , bRightToLeft {false}
+                {}
+
+    sal_Int32&  GetLen()                        { return nLen; }
+    sal_Int32  GetLen() const                   { return nLen; }
+    tools::Long&           GetWidth()                  { return nWidth; }
+    sal_uInt8&      GetKind()                   { return nKind; }
+    void            SetRightToLeft(bool b)      { bRightToLeft = b; }
+    bool            IsRightToLeft() const       { return bRightToLeft; }
+};
+
+class TETextPortionList
+{
+private:
+    std::vector<TETextPortion> maPortions;
+
+public:
+    static constexpr auto npos = std::numeric_limits<std::size_t>::max();
+
+    TETextPortionList();
+    ~TETextPortionList();
+
+    TETextPortion& operator[]( std::size_t nPos );
+    std::vector<TETextPortion>::iterator begin();
+    std::vector<TETextPortion>::const_iterator begin() const;
+    std::vector<TETextPortion>::iterator end();
+    std::vector<TETextPortion>::const_iterator end() const;
+    bool empty() const;
+    std::size_t size() const;
+    std::vector<TETextPortion>::iterator erase( const std::vector<TETextPortion>::iterator& aIter );
+    std::vector<TETextPortion>::iterator insert( const std::vector<TETextPortion>::iterator& aIter,
+                                                  const TETextPortion& rTP );
+    void push_back( const TETextPortion & aTP );
+
+    void    Reset();
+    std::size_t FindPortion( sal_Int32 nCharPos, sal_Int32& rPortionStart, bool bPreferStartingPortion = false );
+    void    DeleteFromPortion( std::size_t nDelFrom );
+};
+
+struct TEWritingDirectionInfo
+{
+    bool         bLeftToRight;
+    sal_Int32    nStartPos;
+    sal_Int32    nEndPos;
+    TEWritingDirectionInfo( bool LeftToRight, sal_Int32 Start, sal_Int32 End )
+        : bLeftToRight {LeftToRight}
+        , nStartPos {Start}
+        , nEndPos {End}
+    {}
+};
+
+class TextLine
+{
+private:
+    sal_Int32           mnStart;
+    sal_Int32           mnEnd;
+    std::size_t         mnStartPortion;
+    std::size_t         mnEndPortion;
+
+    short               mnStartX;
+
+    bool                mbInvalid;  // for clever formatting/output
+
+public:
+                    TextLine()
+                        : mnStart {0}
+                        , mnEnd {0}
+                        , mnStartPortion {0}
+                        , mnEndPortion {0}
+                        , mnStartX {0}
+                        , mbInvalid {true}
+                    {}
+
+    bool            IsIn( sal_Int32 nIndex, bool bInclEnd ) const
+                        { return nIndex >= mnStart && ( bInclEnd ? nIndex <= mnEnd : nIndex < mnEnd ); }
+
+    void            SetStart( sal_Int32 n )         { mnStart = n; }
+    sal_Int32       GetStart() const                { return mnStart; }
+
+    void            SetEnd( sal_Int32 n )           { mnEnd = n; }
+    sal_Int32       GetEnd() const                  { return mnEnd; }
+
+    void            SetStartPortion( std::size_t n ) { mnStartPortion = n; }
+    std::size_t     GetStartPortion() const         { return mnStartPortion; }
+
+    void            SetEndPortion( std::size_t n )  { mnEndPortion = n; }
+    std::size_t     GetEndPortion() const           { return mnEndPortion; }
+
+    sal_Int32       GetLen() const                  { return mnEnd - mnStart; }
+
+    bool            IsInvalid() const               { return mbInvalid; }
+    bool            IsValid() const                 { return !mbInvalid; }
+    void            SetInvalid()                    { mbInvalid = true; }
+    void            SetValid()                      { mbInvalid = false; }
+
+    short           GetStartX() const               { return mnStartX; }
+    void            SetStartX( short n )            { mnStartX = n; }
+
+    inline bool operator == ( const TextLine& rLine ) const;
+};
+
+inline bool TextLine::operator == ( const TextLine& rLine ) const
+{
+    return mnStart == rLine.mnStart &&
+           mnEnd == rLine.mnEnd &&
+           mnStartPortion == rLine.mnStartPortion &&
+           mnEndPortion == rLine.mnEndPortion;
+}
+
+class TEParaPortion
+{
+private:
+    TextNode*               mpNode;
+
+    std::vector<TextLine>   maLines;
+    TETextPortionList       maTextPortions;
+    std::vector<TEWritingDirectionInfo> maWritingDirectionInfos;
+
+    sal_Int32               mnInvalidPosStart;
+    sal_Int32               mnInvalidDiff;
+
+    bool                    mbInvalid;
+    bool                    mbSimple;   // only type linearly
+
+public:
+                        TEParaPortion( TextNode* pNode );
+                        ~TEParaPortion();
+
+    TEParaPortion( const TEParaPortion& ) = delete;
+    void operator=( const TEParaPortion& ) = delete;
+
+    bool                IsInvalid() const           { return mbInvalid; }
+    bool                IsSimpleInvalid() const     { return mbSimple; }
+    void                SetNotSimpleInvalid()       { mbSimple = false; }
+    void                SetValid()                  { mbInvalid = false; mbSimple = true;}
+
+    void                MarkInvalid( sal_Int32 nStart, sal_Int32 nDiff );
+    void                MarkSelectionInvalid( sal_Int32 nStart );
+
+    sal_Int32           GetInvalidPosStart() const  { return mnInvalidPosStart; }
+    sal_Int32           GetInvalidDiff() const      { return mnInvalidDiff; }
+
+    TextNode*           GetNode() const             { return mpNode; }
+    std::vector<TextLine>& GetLines()               { return maLines; }
+    TETextPortionList&  GetTextPortions()           { return maTextPortions; }
+    std::vector<TEWritingDirectionInfo>& GetWritingDirectionInfos() { return maWritingDirectionInfos; }
+
+    std::vector<TextLine>::size_type GetLineNumber( sal_Int32 nIndex, bool bInclEnd );
+    void                CorrectValuesBehindLastFormattedLine( sal_uInt16 nLastFormattedLine );
+};
+
+class TEParaPortions
+{
+private:
+    std::vector<std::unique_ptr<TEParaPortion>> mvData;
+
+public:
+                    TEParaPortions() : mvData() {}
+                    ~TEParaPortions();
+
+    sal_uInt32      Count() const { return static_cast<sal_uInt32>(mvData.size()); }
+    TEParaPortion*  GetObject( sal_uInt32 nIndex ) { return mvData[nIndex].get(); }
+    void            Insert( TEParaPortion* pObject, sal_uInt32 nPos ) { mvData.emplace( mvData.begin()+nPos, pObject ); }
+    void            Remove( sal_uInt32 nPos ) { mvData.erase( mvData.begin()+nPos ); }
+};
+
+class TextSelFunctionSet: public FunctionSet
+{
+private:
+    TextView*       mpView;
+
+public:
+                    TextSelFunctionSet( TextView* pView );
+
+    virtual void    BeginDrag() override;
+
+    virtual void    CreateAnchor() override;
+
+    virtual void    SetCursorAtPoint( const Point& rPointPixel, bool bDontSelectAtCursor = false ) override;
+
+    virtual bool    IsSelectionAtPoint( const Point& rPointPixel ) override;
+    virtual void    DeselectAll() override;
+
+    virtual void    DeselectAtPoint( const Point& ) override;
+    virtual void    DestroyAnchor() override;
+};
+
+class IdleFormatter : public Idle
+{
+private:
+    TextView*   mpView;
+    sal_uInt16      mnRestarts;
+
+public:
+                IdleFormatter();
+                virtual ~IdleFormatter() override;
+
+    void        DoIdleFormat( TextView* pV, sal_uInt16 nMaxRestarts );
+    void        ForceTimeout();
+    TextView*   GetView()       { return mpView; }
+};
+
+struct TextDDInfo
+{
+    vcl::Cursor     maCursor;
+    TextPaM         maDropPos;
+
+    bool            mbStarterOfDD;
+    bool            mbVisCursor;
+
+    TextDDInfo()
+        : maCursor()
+        , maDropPos()
+        , mbStarterOfDD {false}
+        , mbVisCursor {false}
+    {
+        maCursor.SetStyle( CURSOR_SHADOW );
+    }
+};
+
+#endif // INCLUDED_VCL_SOURCE_EDIT_TEXTDAT2_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/edit/textdata.cxx b/vcl/source/edit/textdata.cxx
new file mode 100644
index 000000000..3cf859704
--- /dev/null
+++ b/vcl/source/edit/textdata.cxx
@@ -0,0 +1,344 @@
+/* -*- 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 <sal/config.h>
+#include <sal/log.hxx>
+#include <osl/diagnose.h>
+
+#include <cstddef>
+
+#include <vcl/textdata.hxx>
+#include "textdat2.hxx"
+
+
+TextSelection::TextSelection()
+{
+}
+
+TextSelection::TextSelection( const TextPaM& rPaM ) :
+    maStartPaM( rPaM ), maEndPaM( rPaM )
+{
+}
+
+TextSelection::TextSelection( const TextPaM& rStart, const TextPaM& rEnd ) :
+    maStartPaM( rStart ), maEndPaM( rEnd )
+{
+}
+
+void TextSelection::Justify()
+{
+    if ( maEndPaM < maStartPaM )
+    {
+        TextPaM aTemp( maStartPaM );
+        maStartPaM = maEndPaM;
+        maEndPaM = aTemp;
+    }
+}
+
+TETextPortionList::TETextPortionList()
+{
+}
+
+TETextPortionList::~TETextPortionList()
+{
+    Reset();
+}
+
+TETextPortion& TETextPortionList::operator[]( std::size_t nPos )
+{
+    return maPortions[ nPos ];
+}
+
+std::vector<TETextPortion>::iterator TETextPortionList::begin()
+{
+    return maPortions.begin();
+}
+
+std::vector<TETextPortion>::const_iterator TETextPortionList::begin() const
+{
+    return maPortions.begin();
+}
+
+std::vector<TETextPortion>::iterator TETextPortionList::end()
+{
+    return maPortions.end();
+}
+
+std::vector<TETextPortion>::const_iterator TETextPortionList::end() const
+{
+    return maPortions.end();
+}
+
+bool TETextPortionList::empty() const
+{
+    return maPortions.empty();
+}
+
+std::size_t TETextPortionList::size() const
+{
+    return maPortions.size();
+}
+
+std::vector<TETextPortion>::iterator TETextPortionList::erase( const std::vector<TETextPortion>::iterator& aIter )
+{
+    return maPortions.erase( aIter );
+}
+
+std::vector<TETextPortion>::iterator TETextPortionList::insert( const std::vector<TETextPortion>::iterator& aIter,
+                                                                 const TETextPortion& rTP )
+{
+    return maPortions.insert( aIter, rTP );
+}
+
+void TETextPortionList::push_back( const TETextPortion& rTP )
+{
+    maPortions.push_back( rTP );
+}
+
+void TETextPortionList::Reset()
+{
+    maPortions.clear();
+}
+
+void TETextPortionList::DeleteFromPortion( std::size_t nDelFrom )
+{
+    SAL_WARN_IF( ( nDelFrom >= maPortions.size() ) && ( (nDelFrom != 0) || (!maPortions.empty()) ), "vcl", "DeleteFromPortion: Out of range" );
+    maPortions.erase( maPortions.begin() + nDelFrom, maPortions.end() );
+}
+
+std::size_t TETextPortionList::FindPortion( sal_Int32 nCharPos, sal_Int32& nPortionStart, bool bPreferStartingPortion )
+{
+    // find left portion at nCharPos at portion border
+    sal_Int32 nTmpPos = 0;
+    for ( std::size_t nPortion = 0; nPortion < maPortions.size(); nPortion++ )
+    {
+        TETextPortion& rPortion = maPortions[ nPortion ];
+        nTmpPos += rPortion.GetLen();
+        if ( nTmpPos >= nCharPos )
+        {
+            // take this one if we don't prefer the starting portion, or if it's the last one
+            if ( ( nTmpPos != nCharPos ) || !bPreferStartingPortion || ( nPortion == maPortions.size() - 1 ) )
+            {
+                nPortionStart = nTmpPos - rPortion.GetLen();
+                return nPortion;
+            }
+        }
+    }
+    OSL_FAIL( "FindPortion: Not found!" );
+    return ( maPortions.size() - 1 );
+}
+
+TEParaPortion::TEParaPortion( TextNode* pN )
+    : mpNode {pN}
+    , mnInvalidPosStart {0}
+    , mnInvalidDiff {0}
+    , mbInvalid {true}
+    , mbSimple {false}
+{
+}
+
+TEParaPortion::~TEParaPortion()
+{
+}
+
+void TEParaPortion::MarkInvalid( sal_Int32 nStart, sal_Int32 nDiff )
+{
+    if ( !mbInvalid )
+    {
+        mnInvalidPosStart = ( nDiff >= 0 ) ? nStart : ( nStart + nDiff );
+        mnInvalidDiff = nDiff;
+    }
+    else
+    {
+        // simple consecutive typing
+        if ( ( nDiff > 0 ) && ( mnInvalidDiff > 0 ) &&
+             ( ( mnInvalidPosStart+mnInvalidDiff ) == nStart ) )
+        {
+            mnInvalidDiff = mnInvalidDiff + nDiff;
+        }
+        // simple consecutive deleting
+        else if ( ( nDiff < 0 ) && ( mnInvalidDiff < 0 ) && ( mnInvalidPosStart == nStart ) )
+        {
+            mnInvalidPosStart = mnInvalidPosStart + nDiff;
+            mnInvalidDiff = mnInvalidDiff + nDiff;
+        }
+        else
+        {
+            SAL_WARN_IF( ( nDiff < 0 ) && ( (nStart+nDiff) < 0 ), "vcl", "MarkInvalid: Diff out of Range" );
+            mnInvalidPosStart = std::min( mnInvalidPosStart, nDiff < 0 ? nStart+nDiff : nDiff );
+            mnInvalidDiff = 0;
+            mbSimple = false;
+        }
+    }
+
+    maWritingDirectionInfos.clear();
+
+    mbInvalid = true;
+}
+
+void TEParaPortion::MarkSelectionInvalid( sal_Int32 nStart )
+{
+    if ( !mbInvalid )
+    {
+        mnInvalidPosStart = nStart;
+    }
+    else
+    {
+        mnInvalidPosStart = std::min( mnInvalidPosStart, nStart );
+    }
+
+    maWritingDirectionInfos.clear();
+
+    mnInvalidDiff = 0;
+    mbInvalid = true;
+    mbSimple = false;
+}
+
+std::vector<TextLine>::size_type TEParaPortion::GetLineNumber( sal_Int32 nChar, bool bInclEnd )
+{
+    for ( std::vector<TextLine>::size_type nLine = 0; nLine < maLines.size(); nLine++ )
+    {
+        TextLine& rLine = maLines[ nLine ];
+        if ( ( bInclEnd && ( rLine.GetEnd() >= nChar ) ) ||
+             ( rLine.GetEnd() > nChar ) )
+        {
+            return nLine;
+        }
+    }
+
+    // Then it should be at the end of the last line
+    OSL_ENSURE(nChar == maLines.back().GetEnd(), "wrong Index");
+    OSL_ENSURE(!bInclEnd, "Line not found: FindLine");
+    return ( maLines.size() - 1 );
+}
+
+void TEParaPortion::CorrectValuesBehindLastFormattedLine( sal_uInt16 nLastFormattedLine )
+{
+    sal_uInt16 nLines = maLines.size();
+    SAL_WARN_IF( !nLines, "vcl", "CorrectPortionNumbersFromLine: Empty portion?" );
+    if ( nLastFormattedLine >= ( nLines - 1 ) )
+        return;
+
+    const TextLine& rLastFormatted = maLines[ nLastFormattedLine ];
+    const TextLine& rUnformatted = maLines[ nLastFormattedLine+1 ];
+    std::ptrdiff_t nPortionDiff = rUnformatted.GetStartPortion() - rLastFormatted.GetEndPortion();
+    sal_Int32 nTextDiff = rUnformatted.GetStart() - rLastFormatted.GetEnd();
+    nTextDiff++;    // LastFormatted.GetEnd() was inclusive => subtracted one too much!
+
+    // The first unformatted one has to start exactly one portion past the last
+    // formatted one.
+    // If a portion got split in the changed row, nLastEnd could be > nNextStart!
+    std::ptrdiff_t nPDiff = -( nPortionDiff-1 );
+    const sal_Int32 nTDiff = -( nTextDiff-1 );
+    if ( !(nPDiff || nTDiff) )
+        return;
+
+    for ( sal_uInt16 nL = nLastFormattedLine+1; nL < nLines; nL++ )
+    {
+        TextLine& rLine = maLines[ nL ];
+
+        rLine.SetStartPortion(rLine.GetStartPortion() + nPDiff);
+        rLine.SetEndPortion(rLine.GetEndPortion() + nPDiff);
+
+        rLine.SetStart(rLine.GetStart() + nTDiff);
+        rLine.SetEnd(rLine.GetEnd() + nTDiff);
+
+        rLine.SetValid();
+    }
+}
+
+TEParaPortions::~TEParaPortions()
+{
+}
+
+IdleFormatter::IdleFormatter()
+    : Idle("vcl::TextEngine mpIdleFormatter")
+    , mpView(nullptr)
+    , mnRestarts(0)
+{
+    SetPriority(TaskPriority::HIGH_IDLE);
+}
+
+IdleFormatter::~IdleFormatter()
+{
+    mpView = nullptr;
+}
+
+void IdleFormatter::DoIdleFormat( TextView* pV, sal_uInt16 nMaxRestarts )
+{
+    mpView = pV;
+
+    if ( IsActive() )
+        mnRestarts++;
+
+    if ( mnRestarts > nMaxRestarts )
+    {
+        mnRestarts = 0;
+        Invoke();
+    }
+    else
+    {
+        Start();
+    }
+}
+
+void IdleFormatter::ForceTimeout()
+{
+    if ( IsActive() )
+    {
+        Stop();
+        mnRestarts = 0;
+        Invoke();
+    }
+}
+
+TextHint::TextHint( SfxHintId Id ) : SfxHint( Id ), mnValue(0)
+{
+}
+
+TextHint::TextHint( SfxHintId Id, sal_Int32 nValue ) : SfxHint( Id ), mnValue(nValue)
+{
+}
+
+TEIMEInfos::TEIMEInfos( const TextPaM& rPos, const OUString& rOldTextAfterStartPos )
+    : aOldTextAfterStartPos(rOldTextAfterStartPos)
+    , aPos(rPos)
+    , nLen(0)
+    , bWasCursorOverwrite(false)
+{
+}
+
+TEIMEInfos::~TEIMEInfos()
+{
+}
+
+void TEIMEInfos::CopyAttribs(const ExtTextInputAttr* pA, sal_Int32 nL)
+{
+    nLen = nL;
+    pAttribs.reset( new ExtTextInputAttr[ nL ] );
+    memcpy( pAttribs.get(), pA, nL*sizeof(ExtTextInputAttr) );
+}
+
+void TEIMEInfos::DestroyAttribs()
+{
+    pAttribs.reset();
+    nLen = 0;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/edit/textdoc.cxx b/vcl/source/edit/textdoc.cxx
new file mode 100644
index 000000000..9e0c80b96
--- /dev/null
+++ b/vcl/source/edit/textdoc.cxx
@@ -0,0 +1,536 @@
+/* -*- 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 <memory>
+#include "textdoc.hxx"
+#include <osl/diagnose.h>
+#include <sal/log.hxx>
+#include <rtl/ustrbuf.hxx>
+
+// compare function called by QuickSort
+static bool CompareStart( const std::unique_ptr<TextCharAttrib>& pFirst, const std::unique_ptr<TextCharAttrib>& pSecond )
+{
+    return pFirst->GetStart() < pSecond->GetStart();
+}
+
+TextCharAttrib::TextCharAttrib( const TextAttrib& rAttr, sal_Int32 nStart, sal_Int32 nEnd )
+    : mpAttr(rAttr.Clone())
+    , mnStart(nStart)
+    , mnEnd(nEnd)
+{
+}
+
+TextCharAttrib::TextCharAttrib( const TextCharAttrib& rTextCharAttrib )
+    : mpAttr(rTextCharAttrib.mpAttr->Clone())
+    , mnStart(rTextCharAttrib.mnStart)
+    , mnEnd(rTextCharAttrib.mnEnd)
+{
+}
+
+TextCharAttribList::TextCharAttribList()
+    : mbHasEmptyAttribs(false)
+{
+}
+
+TextCharAttribList::~TextCharAttribList()
+{
+    // PTRARR_DEL
+}
+
+void TextCharAttribList::Clear()
+{
+    maAttribs.clear();
+}
+
+void TextCharAttribList::InsertAttrib( std::unique_ptr<TextCharAttrib> pAttrib )
+{
+    if ( pAttrib->IsEmpty() )
+        mbHasEmptyAttribs = true;
+
+    const sal_Int32 nStart = pAttrib->GetStart(); // maybe better for Comp.Opt.
+    bool bInserted = false;
+    auto it = std::find_if(maAttribs.begin(), maAttribs.end(),
+        [nStart](std::unique_ptr<TextCharAttrib>& rAttrib) { return rAttrib->GetStart() > nStart; });
+    if (it != maAttribs.end())
+    {
+        maAttribs.insert( it, std::move(pAttrib) );
+        bInserted = true;
+    }
+    if ( !bInserted )
+        maAttribs.push_back( std::move(pAttrib) );
+}
+
+void TextCharAttribList::ResortAttribs()
+{
+    std::sort( maAttribs.begin(), maAttribs.end(), CompareStart );
+}
+
+TextCharAttrib* TextCharAttribList::FindAttrib( sal_uInt16 nWhich, sal_Int32 nPos )
+{
+    for (std::vector<std::unique_ptr<TextCharAttrib> >::reverse_iterator it = maAttribs.rbegin(); it != maAttribs.rend(); ++it)
+    {
+        if ( (*it)->GetEnd() < nPos )
+            return nullptr;
+
+        if ( ( (*it)->Which() == nWhich ) && (*it)->IsIn(nPos) )
+            return it->get();
+    }
+    return nullptr;
+}
+
+bool TextCharAttribList::HasBoundingAttrib( sal_Int32 nBound )
+{
+    for (std::vector<std::unique_ptr<TextCharAttrib> >::reverse_iterator it = maAttribs.rbegin(); it != maAttribs.rend(); ++it)
+    {
+        if ( (*it)->GetEnd() < nBound )
+            return false;
+
+        if ( ( (*it)->GetStart() == nBound ) || ( (*it)->GetEnd() == nBound ) )
+            return true;
+    }
+    return false;
+}
+
+TextCharAttrib* TextCharAttribList::FindEmptyAttrib( sal_uInt16 nWhich, sal_Int32 nPos )
+{
+    if ( !mbHasEmptyAttribs )
+        return nullptr;
+
+    for (auto const& attrib : maAttribs)
+    {
+        if ( attrib->GetStart() > nPos )
+            return nullptr;
+
+        if ( ( attrib->GetStart() == nPos ) && ( attrib->GetEnd() == nPos ) && ( attrib->Which() == nWhich ) )
+            return attrib.get();
+    }
+    return nullptr;
+}
+
+void TextCharAttribList::DeleteEmptyAttribs()
+{
+    maAttribs.erase(
+        std::remove_if( maAttribs.begin(), maAttribs.end(),
+            [] (const std::unique_ptr<TextCharAttrib>& rAttrib) { return rAttrib->IsEmpty(); } ),
+        maAttribs.end() );
+    mbHasEmptyAttribs = false;
+}
+
+TextNode::TextNode( const OUString& rText ) :
+    maText( rText )
+{
+}
+
+void TextNode::ExpandAttribs( sal_Int32 nIndex, sal_Int32 nNew )
+{
+    if ( !nNew )
+        return;
+
+    bool bResort = false;
+    sal_uInt16 nAttribs = maCharAttribs.Count();
+    for ( sal_uInt16 nAttr = 0; nAttr < nAttribs; nAttr++ )
+    {
+        TextCharAttrib& rAttrib = maCharAttribs.GetAttrib( nAttr );
+        if ( rAttrib.GetEnd() >= nIndex )
+        {
+            // move all attributes that are behind the cursor
+            if ( rAttrib.GetStart() > nIndex )
+            {
+                rAttrib.MoveForward( nNew );
+            }
+            // 0: expand empty attribute, if at cursor
+            else if ( rAttrib.IsEmpty() )
+            {
+                // Do not check the index; empty one may only be here.
+                // If checking later anyway, special case:
+                // Start == 0; AbsLen == 1, nNew = 1 => Expand due to new paragraph!
+                // Start <= nIndex, End >= nIndex => Start=End=nIndex!
+                rAttrib.Expand( nNew );
+            }
+            // 1: attribute starts before and reaches up to index
+            else if ( rAttrib.GetEnd() == nIndex ) // start must be before
+            {
+                // Only expand if no feature and not in Exclude list!
+                // Otherwise e.g. an UL would go until the new ULDB, thus expand both.
+                if ( !maCharAttribs.FindEmptyAttrib( rAttrib.Which(), nIndex ) )
+                {
+                    rAttrib.Expand( nNew );
+                }
+                else
+                    bResort = true;
+            }
+            // 2: attribute starts before and reaches past the index
+            else if ( ( rAttrib.GetStart() < nIndex ) && ( rAttrib.GetEnd() > nIndex ) )
+            {
+                rAttrib.Expand( nNew );
+            }
+            // 3: attribute starts at Index
+            else if ( rAttrib.GetStart() == nIndex )
+            {
+                if ( nIndex == 0 )
+                {
+                    rAttrib.Expand( nNew );
+                }
+                else
+                    rAttrib.MoveForward( nNew );
+            }
+        }
+
+        SAL_WARN_IF( rAttrib.GetStart() > rAttrib.GetEnd(), "vcl", "Expand: attribute twisted!" );
+        SAL_WARN_IF( ( rAttrib.GetEnd() > maText.getLength() ), "vcl", "Expand: attribute greater than paragraph!" );
+        SAL_WARN_IF( rAttrib.IsEmpty(), "vcl", "Empty attribute after ExpandAttribs?" );
+    }
+
+    if ( bResort )
+        maCharAttribs.ResortAttribs();
+}
+
+void TextNode::CollapseAttribs( sal_Int32 nIndex, sal_Int32 nDeleted )
+{
+    if ( !nDeleted )
+        return;
+
+    bool bResort = false;
+    const sal_Int32 nEndChanges = nIndex+nDeleted;
+
+    for ( sal_uInt16 nAttr = 0; nAttr < maCharAttribs.Count(); nAttr++ )
+    {
+        TextCharAttrib& rAttrib = maCharAttribs.GetAttrib( nAttr );
+        bool bDelAttr = false;
+        if ( rAttrib.GetEnd() >= nIndex )
+        {
+            // move all attributes that are behind the cursor
+            if ( rAttrib.GetStart() >= nEndChanges )
+            {
+                rAttrib.MoveBackward( nDeleted );
+            }
+            // 1. delete inner attributes
+            else if ( ( rAttrib.GetStart() >= nIndex ) && ( rAttrib.GetEnd() <= nEndChanges ) )
+            {
+                // special case: attribute covers the region exactly
+                // => keep as an empty attribute
+                if ( ( rAttrib.GetStart() == nIndex ) && ( rAttrib.GetEnd() == nEndChanges ) )
+                    rAttrib.SetEnd(nIndex); // empty
+                else
+                    bDelAttr = true;
+            }
+            // 2. attribute starts before, ends inside or after
+            else if ( ( rAttrib.GetStart() <= nIndex ) && ( rAttrib.GetEnd() > nIndex ) )
+            {
+                if ( rAttrib.GetEnd() <= nEndChanges ) // ends inside
+                    rAttrib.SetEnd(nIndex);
+                else
+                    rAttrib.Collaps( nDeleted );       // ends after
+            }
+            // 3. attribute starts inside, ends after
+            else if ( ( rAttrib.GetStart() >= nIndex ) && ( rAttrib.GetEnd() > nEndChanges ) )
+            {
+                // features are not allowed to expand!
+                rAttrib.SetStart(nEndChanges);
+                rAttrib.MoveBackward( nDeleted );
+            }
+        }
+
+        SAL_WARN_IF( rAttrib.GetStart() > rAttrib.GetEnd(), "vcl", "Collaps: attribute twisted!" );
+        SAL_WARN_IF( ( rAttrib.GetEnd() > maText.getLength()) && !bDelAttr, "vcl", "Collaps: attribute greater than paragraph!" );
+        if ( bDelAttr /* || rAttrib.IsEmpty() */ )
+        {
+            bResort = true;
+            maCharAttribs.RemoveAttrib( nAttr );
+            nAttr--;
+        }
+        else if ( rAttrib.IsEmpty() )
+            maCharAttribs.HasEmptyAttribs() = true;
+    }
+
+    if ( bResort )
+        maCharAttribs.ResortAttribs();
+}
+
+void TextNode::InsertText( sal_Int32 nPos, const OUString& rText )
+{
+    maText = maText.replaceAt( nPos, 0, rText );
+    ExpandAttribs( nPos, rText.getLength() );
+}
+
+void TextNode::InsertText( sal_Int32 nPos, sal_Unicode c )
+{
+    maText = maText.replaceAt( nPos, 0, rtl::OUStringChar(c) );
+    ExpandAttribs( nPos, 1 );
+}
+
+void TextNode::RemoveText( sal_Int32 nPos, sal_Int32 nChars )
+{
+    maText = maText.replaceAt( nPos, nChars, u"" );
+    CollapseAttribs( nPos, nChars );
+}
+
+std::unique_ptr<TextNode> TextNode::Split( sal_Int32 nPos )
+{
+    OUString aNewText;
+    if ( nPos < maText.getLength() )
+    {
+        aNewText = maText.copy( nPos );
+        maText = maText.copy(0, nPos);
+    }
+    std::unique_ptr<TextNode> pNew(new TextNode( aNewText ));
+
+    for ( sal_uInt16 nAttr = 0; nAttr < maCharAttribs.Count(); nAttr++ )
+    {
+        TextCharAttrib& rAttrib = maCharAttribs.GetAttrib( nAttr );
+        if ( rAttrib.GetEnd() < nPos )
+        {
+            // no change
+            ;
+        }
+        else if ( rAttrib.GetEnd() == nPos )
+        {
+            // must be copied as an empty attribute
+            // !FindAttrib only sensible if traversing backwards through the list!
+            if ( !pNew->maCharAttribs.FindAttrib( rAttrib.Which(), 0 ) )
+            {
+                std::unique_ptr<TextCharAttrib> pNewAttrib(new TextCharAttrib( rAttrib ));
+                pNewAttrib->SetStart(0);
+                pNewAttrib->SetEnd(0);
+                pNew->maCharAttribs.InsertAttrib( std::move(pNewAttrib) );
+            }
+        }
+        else if ( rAttrib.IsInside( nPos ) || ( !nPos && !rAttrib.GetStart() ) )
+        {
+            // If cutting at the very beginning, the attribute has to be
+            // copied and changed
+            std::unique_ptr<TextCharAttrib> pNewAttrib(new TextCharAttrib( rAttrib ));
+            pNewAttrib->SetStart(0);
+            pNewAttrib->SetEnd(rAttrib.GetEnd()-nPos);
+            pNew->maCharAttribs.InsertAttrib( std::move(pNewAttrib) );
+            // trim
+            rAttrib.SetEnd(nPos);
+        }
+        else
+        {
+            SAL_WARN_IF( rAttrib.GetStart() < nPos, "vcl", "Start < nPos!" );
+            SAL_WARN_IF( rAttrib.GetEnd() < nPos, "vcl", "End < nPos!" );
+            // move all into the new node (this)
+            pNew->maCharAttribs.InsertAttrib(maCharAttribs.RemoveAttrib(nAttr));
+            rAttrib.SetStart( rAttrib.GetStart() - nPos );
+            rAttrib.SetEnd( rAttrib.GetEnd() - nPos );
+            nAttr--;
+        }
+    }
+    return pNew;
+}
+
+void TextNode::Append( const TextNode& rNode )
+{
+    sal_Int32 nOldLen = maText.getLength();
+
+    maText += rNode.GetText();
+
+    const sal_uInt16 nAttribs = rNode.GetCharAttribs().Count();
+    for ( sal_uInt16 nAttr = 0; nAttr < nAttribs; nAttr++ )
+    {
+        const TextCharAttrib& rAttrib = rNode.GetCharAttrib( nAttr );
+        bool bMelted = false;
+        if ( rAttrib.GetStart() == 0 )
+        {
+            // potentially merge attributes
+            sal_uInt16 nTmpAttribs = maCharAttribs.Count();
+            for ( sal_uInt16 nTmpAttr = 0; nTmpAttr < nTmpAttribs; nTmpAttr++ )
+            {
+                TextCharAttrib& rTmpAttrib = maCharAttribs.GetAttrib( nTmpAttr );
+
+                if ( rTmpAttrib.GetEnd() == nOldLen )
+                {
+                    if ( ( rTmpAttrib.Which() == rAttrib.Which() ) &&
+                         ( rTmpAttrib.GetAttr() == rAttrib.GetAttr() ) )
+                    {
+                        rTmpAttrib.SetEnd( rTmpAttrib.GetEnd() + rAttrib.GetLen() );
+                        bMelted = true;
+                        break;  // there can be only one of this type at this position
+                    }
+                }
+            }
+        }
+
+        if ( !bMelted )
+        {
+            std::unique_ptr<TextCharAttrib> pNewAttrib(new TextCharAttrib( rAttrib ));
+            pNewAttrib->SetStart( pNewAttrib->GetStart() + nOldLen );
+            pNewAttrib->SetEnd( pNewAttrib->GetEnd() + nOldLen );
+            maCharAttribs.InsertAttrib( std::move(pNewAttrib) );
+        }
+    }
+}
+
+TextDoc::TextDoc()
+    : mnLeftMargin(0)
+{
+};
+
+TextDoc::~TextDoc()
+{
+    DestroyTextNodes();
+}
+
+void TextDoc::Clear()
+{
+    DestroyTextNodes();
+}
+
+void TextDoc::DestroyTextNodes()
+{
+    maTextNodes.clear();
+}
+
+OUString TextDoc::GetText( const sal_Unicode* pSep ) const
+{
+    sal_uInt32 nNodes = static_cast<sal_uInt32>(maTextNodes.size());
+
+    OUStringBuffer aASCIIText;
+    const sal_uInt32 nLastNode = nNodes-1;
+    for ( sal_uInt32 nNode = 0; nNode < nNodes; ++nNode )
+    {
+        TextNode* pNode = maTextNodes[ nNode ].get();
+        aASCIIText.append(pNode->GetText());
+        if ( pSep && ( nNode != nLastNode ) )
+            aASCIIText.append(pSep);
+    }
+
+    return aASCIIText.makeStringAndClear();
+}
+
+OUString TextDoc::GetText( sal_uInt32 nPara ) const
+{
+    TextNode* pNode = ( nPara < maTextNodes.size() ) ? maTextNodes[ nPara ].get() : nullptr;
+    if ( pNode )
+        return pNode->GetText();
+
+    return OUString();
+}
+
+sal_Int32 TextDoc::GetTextLen( const sal_Unicode* pSep, const TextSelection* pSel ) const
+{
+    sal_Int32 nLen = 0;
+    sal_uInt32 nNodes = static_cast<sal_uInt32>(maTextNodes.size());
+    if ( nNodes )
+    {
+        sal_uInt32 nStartNode = 0;
+        sal_uInt32 nEndNode = nNodes-1;
+        if ( pSel )
+        {
+            nStartNode = pSel->GetStart().GetPara();
+            nEndNode = pSel->GetEnd().GetPara();
+        }
+
+        for ( sal_uInt32 nNode = nStartNode; nNode <= nEndNode; ++nNode )
+        {
+            TextNode* pNode = maTextNodes[ nNode ].get();
+
+            sal_Int32 nS = 0;
+            sal_Int32 nE = pNode->GetText().getLength();
+            if ( pSel && ( nNode == pSel->GetStart().GetPara() ) )
+                nS = pSel->GetStart().GetIndex();
+            if ( pSel && ( nNode == pSel->GetEnd().GetPara() ) )
+                nE = pSel->GetEnd().GetIndex();
+
+            nLen += ( nE - nS );
+        }
+
+        if ( pSep )
+            nLen += (nEndNode-nStartNode) * rtl_ustr_getLength(pSep);
+    }
+
+    return nLen;
+}
+
+TextPaM TextDoc::InsertText( const TextPaM& rPaM, sal_Unicode c )
+{
+    SAL_WARN_IF( c == 0x0A, "vcl", "TextDoc::InsertText: Line separator in paragraph not allowed!" );
+    SAL_WARN_IF( c == 0x0D, "vcl", "TextDoc::InsertText: Line separator in paragraph not allowed!" );
+
+    TextNode* pNode = maTextNodes[ rPaM.GetPara() ].get();
+    pNode->InsertText( rPaM.GetIndex(), c );
+
+    TextPaM aPaM( rPaM.GetPara(), rPaM.GetIndex()+1 );
+    return aPaM;
+}
+
+TextPaM TextDoc::InsertText( const TextPaM& rPaM, const OUString& rStr )
+{
+    SAL_WARN_IF( rStr.indexOf( 0x0A ) != -1, "vcl", "TextDoc::InsertText: Line separator in paragraph not allowed!" );
+    SAL_WARN_IF( rStr.indexOf( 0x0D ) != -1, "vcl", "TextDoc::InsertText: Line separator in paragraph not allowed!" );
+
+    TextNode* pNode = maTextNodes[ rPaM.GetPara() ].get();
+    pNode->InsertText( rPaM.GetIndex(), rStr );
+
+    TextPaM aPaM( rPaM.GetPara(), rPaM.GetIndex()+rStr.getLength() );
+    return aPaM;
+}
+
+TextPaM TextDoc::InsertParaBreak( const TextPaM& rPaM )
+{
+    TextNode* pNode = maTextNodes[ rPaM.GetPara() ].get();
+    std::unique_ptr<TextNode> pNew = pNode->Split( rPaM.GetIndex() );
+
+    SAL_WARN_IF( maTextNodes.size()>=SAL_MAX_UINT32, "vcl", "InsertParaBreak: more than 4Gi paragraphs!" );
+    maTextNodes.insert( maTextNodes.begin() + rPaM.GetPara() + 1, std::move(pNew) );
+
+    TextPaM aPaM( rPaM.GetPara()+1, 0 );
+    return aPaM;
+}
+
+TextPaM TextDoc::ConnectParagraphs( TextNode* pLeft, const TextNode* pRight )
+{
+    sal_Int32 nPrevLen = pLeft->GetText().getLength();
+    pLeft->Append( *pRight );
+
+    // the paragraph on the right vanishes
+    maTextNodes.erase( std::find_if( maTextNodes.begin(), maTextNodes.end(),
+                                     [&] (std::unique_ptr<TextNode> const & p) { return p.get() == pRight; } ) );
+
+    sal_Int32 nLeft = ::std::find_if( maTextNodes.begin(), maTextNodes.end(),
+                                      [&] (std::unique_ptr<TextNode> const & p) { return p.get() == pLeft; } )
+                        - maTextNodes.begin();
+    TextPaM aPaM( nLeft, nPrevLen );
+    return aPaM;
+}
+
+void TextDoc::RemoveChars( const TextPaM& rPaM, sal_Int32 nChars )
+{
+    TextNode* pNode = maTextNodes[ rPaM.GetPara() ].get();
+    pNode->RemoveText( rPaM.GetIndex(), nChars );
+}
+
+bool TextDoc::IsValidPaM( const TextPaM& rPaM )
+{
+    if ( rPaM.GetPara() >= maTextNodes.size() )
+    {
+        OSL_FAIL( "PaM: Para out of range" );
+        return false;
+    }
+    TextNode * pNode = maTextNodes[ rPaM.GetPara() ].get();
+    if ( rPaM.GetIndex() > pNode->GetText().getLength() )
+    {
+        OSL_FAIL( "PaM: Index out of range" );
+        return false;
+    }
+    return true;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/edit/textdoc.hxx b/vcl/source/edit/textdoc.hxx
new file mode 100644
index 000000000..11657463e
--- /dev/null
+++ b/vcl/source/edit/textdoc.hxx
@@ -0,0 +1,129 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_VCL_SOURCE_EDIT_TEXTDOC_HXX
+#define INCLUDED_VCL_SOURCE_EDIT_TEXTDOC_HXX
+
+#include <rtl/ustring.hxx>
+#include <vcl/textdata.hxx>
+#include <vcl/txtattr.hxx>
+#include <vector>
+#include <memory>
+
+class TextCharAttribList
+{
+private:
+    TextCharAttribList(const TextCharAttribList&) = delete;
+    TextCharAttribList& operator=(const TextCharAttribList&) = delete;
+
+    std::vector<std::unique_ptr<TextCharAttrib> > maAttribs;
+    bool            mbHasEmptyAttribs;
+
+public:
+                    TextCharAttribList();
+                    ~TextCharAttribList();
+
+    void            Clear();
+    sal_uInt16          Count() const               { return maAttribs.size(); }
+
+    const TextCharAttrib& GetAttrib( sal_uInt16 n ) const { return *maAttribs[n]; }
+    TextCharAttrib& GetAttrib( sal_uInt16 n )       { return *maAttribs[n]; }
+    std::unique_ptr<TextCharAttrib>  RemoveAttrib( sal_uInt16 n )
+    {
+        std::unique_ptr<TextCharAttrib> pReleased = std::move(maAttribs[n]);
+        maAttribs.erase( maAttribs.begin() + n );
+        return pReleased;
+    }
+
+    void            InsertAttrib( std::unique_ptr<TextCharAttrib> pAttrib );
+
+    void            DeleteEmptyAttribs();
+    void            ResortAttribs();
+
+    bool&           HasEmptyAttribs()       { return mbHasEmptyAttribs; }
+
+    TextCharAttrib* FindAttrib( sal_uInt16 nWhich, sal_Int32 nPos );
+    TextCharAttrib* FindEmptyAttrib( sal_uInt16 nWhich, sal_Int32 nPos );
+    bool            HasBoundingAttrib( sal_Int32 nBound );
+};
+
+class TextNode
+{
+    OUString            maText;
+    TextCharAttribList  maCharAttribs;
+
+    void                ExpandAttribs( sal_Int32 nIndex, sal_Int32 nNewChars );
+    void                CollapseAttribs( sal_Int32 nIndex, sal_Int32 nDelChars );
+
+public:
+                        TextNode( const OUString& rText );
+
+    TextNode( const TextNode& ) = delete;
+    void operator=( const TextNode& ) = delete;
+
+    const OUString&     GetText() const         { return maText; }
+
+    const TextCharAttrib&   GetCharAttrib(sal_uInt16 nPos) const  { return maCharAttribs.GetAttrib(nPos); }
+    const TextCharAttribList&   GetCharAttribs() const  { return maCharAttribs; }
+    TextCharAttribList&         GetCharAttribs()        { return maCharAttribs; }
+
+    void                InsertText( sal_Int32 nPos, const OUString& rText );
+    void                InsertText( sal_Int32 nPos, sal_Unicode c );
+    void                RemoveText( sal_Int32 nPos, sal_Int32 nChars );
+
+    std::unique_ptr<TextNode> Split( sal_Int32 nPos );
+    void                Append( const TextNode& rNode );
+};
+
+class TextDoc
+{
+    std::vector<std::unique_ptr<TextNode>>  maTextNodes;
+    sal_uInt16              mnLeftMargin;
+
+    void                DestroyTextNodes();
+
+public:
+                        TextDoc();
+                        ~TextDoc();
+
+    void                Clear();
+
+    std::vector<std::unique_ptr<TextNode>>&       GetNodes()              { return maTextNodes; }
+    const std::vector<std::unique_ptr<TextNode>>& GetNodes() const        { return maTextNodes; }
+
+    void                RemoveChars( const TextPaM& rPaM, sal_Int32 nChars );
+    TextPaM             InsertText( const TextPaM& rPaM, sal_Unicode c );
+    TextPaM             InsertText( const TextPaM& rPaM, const OUString& rStr );
+
+    TextPaM             InsertParaBreak( const TextPaM& rPaM );
+    TextPaM             ConnectParagraphs( TextNode* pLeft, const TextNode* pRight );
+
+    sal_Int32           GetTextLen( const sal_Unicode* pSep, const TextSelection* pSel = nullptr ) const;
+    OUString            GetText( const sal_Unicode* pSep ) const;
+    OUString            GetText( sal_uInt32 nPara ) const;
+
+    void                SetLeftMargin( sal_uInt16 n )   { mnLeftMargin = n; }
+    sal_uInt16          GetLeftMargin() const       { return mnLeftMargin; }
+
+    bool            IsValidPaM( const TextPaM& rPaM );
+};
+
+#endif // INCLUDED_VCL_SOURCE_EDIT_TEXTDOC_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/edit/texteng.cxx b/vcl/source/edit/texteng.cxx
new file mode 100644
index 000000000..6171e0417
--- /dev/null
+++ b/vcl/source/edit/texteng.cxx
@@ -0,0 +1,2895 @@
+/* -*- 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 <tools/stream.hxx>
+
+#include <vcl/texteng.hxx>
+#include <vcl/textview.hxx>
+#include <vcl/commandevent.hxx>
+#include <vcl/inputctx.hxx>
+#include "textdoc.hxx"
+#include "textdat2.hxx"
+#include "textundo.hxx"
+#include "textund2.hxx"
+#include <svl/ctloptions.hxx>
+#include <vcl/window.hxx>
+#include <vcl/settings.hxx>
+#include <vcl/toolkit/edit.hxx>
+#include <vcl/virdev.hxx>
+#include <sal/log.hxx>
+#include <osl/diagnose.h>
+
+#include <com/sun/star/i18n/XBreakIterator.hpp>
+
+#include <com/sun/star/i18n/CharacterIteratorMode.hpp>
+
+#include <com/sun/star/i18n/WordType.hpp>
+
+#include <com/sun/star/i18n/InputSequenceChecker.hpp>
+#include <com/sun/star/i18n/InputSequenceCheckMode.hpp>
+#include <com/sun/star/i18n/ScriptType.hpp>
+
+#include <comphelper/processfactory.hxx>
+
+#include <unotools/localedatawrapper.hxx>
+#include <vcl/unohelp.hxx>
+
+#include <vcl/svapp.hxx>
+
+#include <unicode/ubidi.h>
+
+#include <algorithm>
+#include <cstddef>
+#include <cstdlib>
+#include <memory>
+#include <o3tl/sorted_vector.hxx>
+#include <string_view>
+#include <vector>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+
+TextEngine::TextEngine()
+    : mpActiveView {nullptr}
+    , maTextColor {COL_BLACK}
+    , mnMaxTextLen {0}
+    , mnMaxTextWidth {0}
+    , mnCharHeight {0}
+    , mnCurTextWidth {-1}
+    , mnCurTextHeight {0}
+    , mnDefTab {0}
+    , meAlign {TxtAlign::Left}
+    , mbIsFormatting {false}
+    , mbFormatted {false}
+    , mbUpdate {true}
+    , mbModified {false}
+    , mbUndoEnabled {false}
+    , mbIsInUndo {false}
+    , mbDowning {false}
+    , mbRightToLeft {false}
+    , mbHasMultiLineParas {false}
+{
+    mpViews.reset( new TextViews );
+
+    mpIdleFormatter.reset( new IdleFormatter );
+    mpIdleFormatter->SetInvokeHandler( LINK( this, TextEngine, IdleFormatHdl ) );
+
+    mpRefDev = VclPtr<VirtualDevice>::Create();
+
+    ImpInitLayoutMode( mpRefDev );
+
+    ImpInitDoc();
+
+    vcl::Font aFont(mpRefDev->GetFont().GetFamilyName(), Size(0, 0));
+    aFont.SetTransparent( false );
+    Color aFillColor( aFont.GetFillColor() );
+    aFillColor.SetAlpha( 255 );
+    aFont.SetFillColor( aFillColor );
+    SetFont( aFont );
+}
+
+TextEngine::~TextEngine()
+{
+    mbDowning = true;
+
+    mpIdleFormatter.reset();
+    mpDoc.reset();
+    mpTEParaPortions.reset();
+    mpViews.reset(); // only the list, not the Views
+    mpRefDev.disposeAndClear();
+    mpUndoManager.reset();
+    mpIMEInfos.reset();
+    mpLocaleDataWrapper.reset();
+}
+
+void TextEngine::InsertView( TextView* pTextView )
+{
+    mpViews->push_back( pTextView );
+    pTextView->SetSelection( TextSelection() );
+
+    if ( !GetActiveView() )
+        SetActiveView( pTextView );
+}
+
+void TextEngine::RemoveView( TextView* pTextView )
+{
+    TextViews::iterator it = std::find( mpViews->begin(), mpViews->end(), pTextView );
+    if( it != mpViews->end() )
+    {
+        pTextView->HideCursor();
+        mpViews->erase( it );
+        if ( pTextView == GetActiveView() )
+            SetActiveView( nullptr );
+    }
+}
+
+sal_uInt16 TextEngine::GetViewCount() const
+{
+    return mpViews->size();
+}
+
+TextView* TextEngine::GetView( sal_uInt16 nView ) const
+{
+    return (*mpViews)[ nView ];
+}
+
+
+void TextEngine::SetActiveView( TextView* pTextView )
+{
+    if ( pTextView != mpActiveView )
+    {
+        if ( mpActiveView )
+            mpActiveView->HideSelection();
+
+        mpActiveView = pTextView;
+
+        if ( mpActiveView )
+            mpActiveView->ShowSelection();
+    }
+}
+
+void TextEngine::SetFont( const vcl::Font& rFont )
+{
+    if ( rFont == maFont )
+        return;
+
+    maFont = rFont;
+    // #i40221# As the font's color now defaults to transparent (since i35764)
+    //  we have to choose a useful textcolor in this case.
+    // Otherwise maTextColor and maFont.GetColor() are both transparent...
+    if( rFont.GetColor() == COL_TRANSPARENT )
+        maTextColor = COL_BLACK;
+    else
+        maTextColor = rFont.GetColor();
+
+    // Do not allow transparent fonts because of selection
+    // (otherwise delete the background in ImplPaint later differently)
+    maFont.SetTransparent( false );
+    // Tell VCL not to use the font color, use text color from OutputDevice
+    maFont.SetColor( COL_TRANSPARENT );
+    Color aFillColor( maFont.GetFillColor() );
+    aFillColor.SetAlpha( 255 );
+    maFont.SetFillColor( aFillColor );
+
+    maFont.SetAlignment( ALIGN_TOP );
+    mpRefDev->SetFont( maFont );
+    mnDefTab = mpRefDev->GetTextWidth("    ");
+    if ( !mnDefTab )
+        mnDefTab = mpRefDev->GetTextWidth("XXXX");
+    if ( !mnDefTab )
+        mnDefTab = 1;
+    mnCharHeight = mpRefDev->GetTextHeight();
+
+    FormatFullDoc();
+    UpdateViews();
+
+    for ( auto nView = mpViews->size(); nView; )
+    {
+        TextView* pView = (*mpViews)[ --nView ];
+        pView->GetWindow()->SetInputContext( InputContext( GetFont(), !pView->IsReadOnly() ? InputContextFlags::Text|InputContextFlags::ExtText : InputContextFlags::NONE ) );
+    }
+
+}
+
+void TextEngine::SetMaxTextLen( sal_Int32 nLen )
+{
+    mnMaxTextLen = nLen>=0 ? nLen : EDIT_NOLIMIT;
+}
+
+void TextEngine::SetMaxTextWidth( tools::Long nMaxWidth )
+{
+    if ( nMaxWidth>=0 && nMaxWidth != mnMaxTextWidth )
+    {
+        mnMaxTextWidth = nMaxWidth;
+        FormatFullDoc();
+        UpdateViews();
+    }
+}
+
+const sal_Unicode static_aLFText[] = { '\n', 0 };
+const sal_Unicode static_aCRText[] = { '\r', 0 };
+const sal_Unicode static_aCRLFText[] = { '\r', '\n', 0 };
+
+static const sal_Unicode* static_getLineEndText( LineEnd aLineEnd )
+{
+    const sal_Unicode* pRet = nullptr;
+
+    switch( aLineEnd )
+    {
+        case LINEEND_LF:
+            pRet = static_aLFText;
+            break;
+        case LINEEND_CR:
+            pRet = static_aCRText;
+            break;
+        case LINEEND_CRLF:
+            pRet = static_aCRLFText;
+            break;
+    }
+    return pRet;
+}
+
+void  TextEngine::ReplaceText(const TextSelection& rSel, const OUString& rText)
+{
+    ImpInsertText( rSel, rText );
+}
+
+OUString TextEngine::GetText( LineEnd aSeparator ) const
+{
+    return mpDoc->GetText( static_getLineEndText( aSeparator ) );
+}
+
+OUString TextEngine::GetTextLines( LineEnd aSeparator ) const
+{
+    OUStringBuffer aText;
+    const sal_uInt32 nParas = mpTEParaPortions->Count();
+    const sal_Unicode* pSep = static_getLineEndText( aSeparator );
+    for ( sal_uInt32 nP = 0; nP < nParas; ++nP )
+    {
+        TEParaPortion* pTEParaPortion = mpTEParaPortions->GetObject( nP );
+
+        const size_t nLines = pTEParaPortion->GetLines().size();
+        for ( size_t nL = 0; nL < nLines; ++nL )
+        {
+            TextLine& rLine = pTEParaPortion->GetLines()[nL];
+            aText.append( pTEParaPortion->GetNode()->GetText().subView(rLine.GetStart(), rLine.GetEnd() - rLine.GetStart()) );
+            if ( pSep && ( ( (nP+1) < nParas ) || ( (nL+1) < nLines ) ) )
+                aText.append(pSep);
+        }
+    }
+    return aText.makeStringAndClear();
+}
+
+OUString TextEngine::GetText( sal_uInt32 nPara ) const
+{
+    return mpDoc->GetText( nPara );
+}
+
+sal_Int32 TextEngine::GetTextLen() const
+{
+    return mpDoc->GetTextLen( static_getLineEndText( LINEEND_LF ) );
+}
+
+sal_Int32 TextEngine::GetTextLen( const TextSelection& rSel ) const
+{
+    TextSelection aSel( rSel );
+    aSel.Justify();
+    ValidateSelection( aSel );
+    return mpDoc->GetTextLen( static_getLineEndText( LINEEND_LF ), &aSel );
+}
+
+sal_Int32 TextEngine::GetTextLen( const sal_uInt32 nPara ) const
+{
+    return mpDoc->GetNodes()[ nPara ]->GetText().getLength();
+}
+
+void TextEngine::SetUpdateMode( bool bUpdate )
+{
+    if ( bUpdate != mbUpdate )
+    {
+        mbUpdate = bUpdate;
+        if ( mbUpdate )
+        {
+            FormatAndUpdate( GetActiveView() );
+            if ( GetActiveView() )
+                GetActiveView()->ShowCursor();
+        }
+    }
+}
+
+bool TextEngine::DoesKeyChangeText( const KeyEvent& rKeyEvent )
+{
+    bool bDoesChange = false;
+
+    KeyFuncType eFunc = rKeyEvent.GetKeyCode().GetFunction();
+    if ( eFunc != KeyFuncType::DONTKNOW )
+    {
+        switch ( eFunc )
+        {
+            case KeyFuncType::UNDO:
+            case KeyFuncType::REDO:
+            case KeyFuncType::CUT:
+            case KeyFuncType::PASTE:
+                bDoesChange = true;
+                break;
+            default:
+                // might get handled below
+                eFunc = KeyFuncType::DONTKNOW;
+        }
+    }
+    if ( eFunc == KeyFuncType::DONTKNOW )
+    {
+        switch ( rKeyEvent.GetKeyCode().GetCode() )
+        {
+            case KEY_DELETE:
+            case KEY_BACKSPACE:
+                if ( !rKeyEvent.GetKeyCode().IsMod2() )
+                    bDoesChange = true;
+                break;
+            case KEY_RETURN:
+            case KEY_TAB:
+                if ( !rKeyEvent.GetKeyCode().IsMod1() && !rKeyEvent.GetKeyCode().IsMod2() )
+                    bDoesChange = true;
+                break;
+            default:
+                bDoesChange = TextEngine::IsSimpleCharInput( rKeyEvent );
+        }
+    }
+    return bDoesChange;
+}
+
+bool TextEngine::IsSimpleCharInput( const KeyEvent& rKeyEvent )
+{
+    return rKeyEvent.GetCharCode() >= 32 && rKeyEvent.GetCharCode() != 127 &&
+        KEY_MOD1 != (rKeyEvent.GetKeyCode().GetModifier() & ~KEY_SHIFT) && // (ssa) #i45714#:
+        KEY_MOD2 != (rKeyEvent.GetKeyCode().GetModifier() & ~KEY_SHIFT);  // check for Ctrl and Alt separately
+}
+
+void TextEngine::ImpInitDoc()
+{
+    if ( mpDoc )
+        mpDoc->Clear();
+    else
+        mpDoc.reset( new TextDoc );
+
+    mpTEParaPortions.reset(new TEParaPortions);
+
+    std::unique_ptr<TextNode> pNode(new TextNode( OUString() ));
+    mpDoc->GetNodes().insert( mpDoc->GetNodes().begin(), std::move(pNode) );
+
+    TEParaPortion* pIniPortion = new TEParaPortion( mpDoc->GetNodes().begin()->get() );
+    mpTEParaPortions->Insert( pIniPortion, 0 );
+
+    mbFormatted = false;
+
+    ImpParagraphRemoved( TEXT_PARA_ALL );
+    ImpParagraphInserted( 0 );
+}
+
+OUString TextEngine::GetText( const TextSelection& rSel, LineEnd aSeparator ) const
+{
+    if ( !rSel.HasRange() )
+        return OUString();
+
+    TextSelection aSel( rSel );
+    aSel.Justify();
+
+    OUStringBuffer aText;
+    const sal_uInt32 nStartPara = aSel.GetStart().GetPara();
+    const sal_uInt32 nEndPara = aSel.GetEnd().GetPara();
+    const sal_Unicode* pSep = static_getLineEndText( aSeparator );
+    for ( sal_uInt32 nNode = aSel.GetStart().GetPara(); nNode <= nEndPara; ++nNode )
+    {
+        TextNode* pNode = mpDoc->GetNodes()[ nNode ].get();
+
+        sal_Int32 nStartPos = 0;
+        sal_Int32 nEndPos = pNode->GetText().getLength();
+        if ( nNode == nStartPara )
+            nStartPos = aSel.GetStart().GetIndex();
+        if ( nNode == nEndPara ) // may also be == nStart!
+            nEndPos = aSel.GetEnd().GetIndex();
+
+        aText.append(pNode->GetText().subView(nStartPos, nEndPos-nStartPos));
+        if ( nNode < nEndPara )
+            aText.append(pSep);
+    }
+    return aText.makeStringAndClear();
+}
+
+void TextEngine::ImpRemoveText()
+{
+    ImpInitDoc();
+
+    const TextSelection aEmptySel;
+    for (TextView* pView : *mpViews)
+    {
+        pView->ImpSetSelection( aEmptySel );
+    }
+    ResetUndo();
+}
+
+void TextEngine::SetText( const OUString& rText )
+{
+    ImpRemoveText();
+
+    const bool bUndoCurrentlyEnabled = IsUndoEnabled();
+    // the manually inserted text cannot be reversed by the user
+    EnableUndo( false );
+
+    const TextSelection aEmptySel;
+
+    TextPaM aPaM;
+    if ( !rText.isEmpty() )
+        aPaM = ImpInsertText( aEmptySel, rText );
+
+    for (TextView* pView : *mpViews)
+    {
+        pView->ImpSetSelection( aEmptySel );
+
+        // if no text, then no Format&Update => the text remains
+        if ( rText.isEmpty() && GetUpdateMode() )
+            pView->Invalidate();
+    }
+
+    if( rText.isEmpty() )  // otherwise needs invalidation later; !bFormatted is sufficient
+        mnCurTextHeight = 0;
+
+    FormatAndUpdate();
+
+    EnableUndo( bUndoCurrentlyEnabled );
+    SAL_WARN_IF( HasUndoManager() && GetUndoManager().GetUndoActionCount(), "vcl", "SetText: Undo!" );
+}
+
+void TextEngine::CursorMoved( sal_uInt32 nNode )
+{
+    // delete empty attribute; but only if paragraph is not empty!
+    TextNode* pNode = mpDoc->GetNodes()[ nNode ].get();
+    if ( pNode && pNode->GetCharAttribs().HasEmptyAttribs() && !pNode->GetText().isEmpty() )
+        pNode->GetCharAttribs().DeleteEmptyAttribs();
+}
+
+void TextEngine::ImpRemoveChars( const TextPaM& rPaM, sal_Int32 nChars )
+{
+    SAL_WARN_IF( !nChars, "vcl", "ImpRemoveChars: 0 Chars?!" );
+    if ( IsUndoEnabled() && !IsInUndo() )
+    {
+        // attributes have to be saved for UNDO before RemoveChars!
+        TextNode* pNode = mpDoc->GetNodes()[ rPaM.GetPara() ].get();
+        OUString aStr( pNode->GetText().copy( rPaM.GetIndex(), nChars ) );
+
+        // check if attributes are being deleted or changed
+        const sal_Int32 nStart = rPaM.GetIndex();
+        const sal_Int32 nEnd = nStart + nChars;
+        for ( sal_uInt16 nAttr = pNode->GetCharAttribs().Count(); nAttr; )
+        {
+            TextCharAttrib& rAttr = pNode->GetCharAttribs().GetAttrib( --nAttr );
+            if ( ( rAttr.GetEnd() >= nStart ) && ( rAttr.GetStart() < nEnd ) )
+            {
+                break;  // for
+            }
+        }
+        InsertUndo( std::make_unique<TextUndoRemoveChars>( this, rPaM, aStr ) );
+    }
+
+    mpDoc->RemoveChars( rPaM, nChars );
+    ImpCharsRemoved( rPaM.GetPara(), rPaM.GetIndex(), nChars );
+}
+
+TextPaM TextEngine::ImpConnectParagraphs( sal_uInt32 nLeft, sal_uInt32 nRight )
+{
+    SAL_WARN_IF( nLeft == nRight, "vcl", "ImpConnectParagraphs: connect the very same paragraph ?" );
+
+    TextNode* pLeft = mpDoc->GetNodes()[ nLeft ].get();
+    TextNode* pRight = mpDoc->GetNodes()[ nRight ].get();
+
+    if ( IsUndoEnabled() && !IsInUndo() )
+        InsertUndo( std::make_unique<TextUndoConnectParas>( this, nLeft, pLeft->GetText().getLength() ) );
+
+    // first lookup Portions, as pRight is gone after ConnectParagraphs
+    TEParaPortion* pLeftPortion = mpTEParaPortions->GetObject( nLeft );
+    TEParaPortion* pRightPortion = mpTEParaPortions->GetObject( nRight );
+    SAL_WARN_IF( !pLeft || !pLeftPortion, "vcl", "ImpConnectParagraphs(1): Hidden Portion" );
+    SAL_WARN_IF( !pRight || !pRightPortion, "vcl", "ImpConnectParagraphs(2): Hidden Portion" );
+
+    TextPaM aPaM = mpDoc->ConnectParagraphs( pLeft, pRight );
+    ImpParagraphRemoved( nRight );
+
+    pLeftPortion->MarkSelectionInvalid( aPaM.GetIndex() );
+
+    mpTEParaPortions->Remove( nRight );
+    // the right Node is deleted by EditDoc::ConnectParagraphs()
+
+    return aPaM;
+}
+
+TextPaM TextEngine::ImpDeleteText( const TextSelection& rSel )
+{
+    if ( !rSel.HasRange() )
+        return rSel.GetStart();
+
+    TextSelection aSel( rSel );
+    aSel.Justify();
+    TextPaM aStartPaM( aSel.GetStart() );
+    TextPaM aEndPaM( aSel.GetEnd() );
+
+    CursorMoved( aStartPaM.GetPara() ); // so that newly-adjusted attributes vanish
+    CursorMoved( aEndPaM.GetPara() );   // so that newly-adjusted attributes vanish
+
+    SAL_WARN_IF( !mpDoc->IsValidPaM( aStartPaM ), "vcl", "ImpDeleteText(1): bad Index" );
+    SAL_WARN_IF( !mpDoc->IsValidPaM( aEndPaM ), "vcl", "ImpDeleteText(2): bad Index" );
+
+    const sal_uInt32 nStartNode = aStartPaM.GetPara();
+    sal_uInt32 nEndNode = aEndPaM.GetPara();
+
+    // remove all Nodes inbetween
+    for ( sal_uInt32 z = nStartNode+1; z < nEndNode; ++z )
+    {
+        // always nStartNode+1, because of Remove()!
+        ImpRemoveParagraph( nStartNode+1 );
+    }
+
+    if ( nStartNode != nEndNode )
+    {
+        // the remainder of StartNodes...
+        TextNode* pLeft = mpDoc->GetNodes()[ nStartNode ].get();
+        sal_Int32 nChars = pLeft->GetText().getLength() - aStartPaM.GetIndex();
+        if ( nChars )
+        {
+            ImpRemoveChars( aStartPaM, nChars );
+            TEParaPortion* pPortion = mpTEParaPortions->GetObject( nStartNode );
+            SAL_WARN_IF( !pPortion, "vcl", "ImpDeleteText(3): bad Index" );
+            pPortion->MarkSelectionInvalid( aStartPaM.GetIndex() );
+        }
+
+        // the beginning of EndNodes...
+        nEndNode = nStartNode+1;    // the other paragraphs were deleted
+        nChars = aEndPaM.GetIndex();
+        if ( nChars )
+        {
+            aEndPaM.GetPara() = nEndNode;
+            aEndPaM.GetIndex() = 0;
+            ImpRemoveChars( aEndPaM, nChars );
+            TEParaPortion* pPortion = mpTEParaPortions->GetObject( nEndNode );
+            SAL_WARN_IF( !pPortion, "vcl", "ImpDeleteText(4): bad Index" );
+            pPortion->MarkSelectionInvalid( 0 );
+        }
+
+        // connect...
+        aStartPaM = ImpConnectParagraphs( nStartNode, nEndNode );
+    }
+    else
+    {
+        const sal_Int32 nChars = aEndPaM.GetIndex() - aStartPaM.GetIndex();
+        ImpRemoveChars( aStartPaM, nChars );
+        TEParaPortion* pPortion = mpTEParaPortions->GetObject( nStartNode );
+        SAL_WARN_IF( !pPortion, "vcl", "ImpDeleteText(5): bad Index" );
+        pPortion->MarkInvalid( aEndPaM.GetIndex(), aStartPaM.GetIndex() - aEndPaM.GetIndex() );
+    }
+
+//  UpdateSelections();
+    TextModified();
+    return aStartPaM;
+}
+
+void TextEngine::ImpRemoveParagraph( sal_uInt32 nPara )
+{
+    std::unique_ptr<TextNode> pNode = std::move(mpDoc->GetNodes()[ nPara ]);
+
+    // the Node is handled by Undo and is deleted if appropriate
+    mpDoc->GetNodes().erase( mpDoc->GetNodes().begin() + nPara );
+    if ( IsUndoEnabled() && !IsInUndo() )
+        InsertUndo( std::make_unique<TextUndoDelPara>( this, pNode.release(), nPara ) );
+
+    mpTEParaPortions->Remove( nPara );
+
+    ImpParagraphRemoved( nPara );
+}
+
+uno::Reference < i18n::XExtendedInputSequenceChecker > const & TextEngine::GetInputSequenceChecker()
+{
+    if ( !mxISC.is() )
+    {
+        mxISC = i18n::InputSequenceChecker::create( ::comphelper::getProcessComponentContext() );
+    }
+    return mxISC;
+}
+
+bool TextEngine::IsInputSequenceCheckingRequired( sal_Unicode c, const TextSelection& rCurSel ) const
+{
+    SvtCTLOptions aCTLOptions;
+
+    // get the index that really is first
+    const sal_Int32 nFirstPos = std::min(rCurSel.GetStart().GetIndex(), rCurSel.GetEnd().GetIndex());
+
+    bool bIsSequenceChecking =
+        aCTLOptions.IsCTLFontEnabled() &&
+        aCTLOptions.IsCTLSequenceChecking() &&
+        nFirstPos != 0; /* first char needs not to be checked */
+
+    if (bIsSequenceChecking)
+    {
+        uno::Reference< i18n::XBreakIterator > xBI = const_cast<TextEngine *>(this)->GetBreakIterator();
+        bIsSequenceChecking = xBI.is() && i18n::ScriptType::COMPLEX == xBI->getScriptType( OUString( c ), 0 );
+    }
+
+    return bIsSequenceChecking;
+}
+
+TextPaM TextEngine::ImpInsertText( const TextSelection& rCurSel, sal_Unicode c, bool bOverwrite )
+{
+    return ImpInsertText( c, rCurSel, bOverwrite  );
+}
+
+TextPaM TextEngine::ImpInsertText( sal_Unicode c, const TextSelection& rCurSel, bool bOverwrite, bool bIsUserInput )
+{
+    SAL_WARN_IF( c == '\n', "vcl", "InsertText: NewLine!" );
+    SAL_WARN_IF( c == '\r', "vcl", "InsertText: NewLine!" );
+
+    TextPaM aPaM( rCurSel.GetStart() );
+    TextNode* pNode = mpDoc->GetNodes()[ aPaM.GetPara() ].get();
+
+    bool bDoOverwrite = bOverwrite && ( aPaM.GetIndex() < pNode->GetText().getLength() );
+
+    bool bUndoAction = rCurSel.HasRange() || bDoOverwrite;
+
+    if ( bUndoAction )
+        UndoActionStart();
+
+    if ( rCurSel.HasRange() )
+    {
+        aPaM = ImpDeleteText( rCurSel );
+    }
+    else if ( bDoOverwrite )
+    {
+        // if selection, then don't overwrite a character
+        TextSelection aTmpSel( aPaM );
+        ++aTmpSel.GetEnd().GetIndex();
+        ImpDeleteText( aTmpSel );
+    }
+
+    if (bIsUserInput && IsInputSequenceCheckingRequired( c, rCurSel ))
+    {
+        uno::Reference < i18n::XExtendedInputSequenceChecker > xISC = GetInputSequenceChecker();
+        SvtCTLOptions aCTLOptions;
+
+        if (xISC.is())
+        {
+            sal_Int32 nTmpPos = aPaM.GetIndex();
+            sal_Int16 nCheckMode = aCTLOptions.IsCTLSequenceCheckingRestricted() ?
+                    i18n::InputSequenceCheckMode::STRICT : i18n::InputSequenceCheckMode::BASIC;
+
+            // the text that needs to be checked is only the one
+            // before the current cursor position
+            OUString aOldText( mpDoc->GetText( aPaM.GetPara() ).copy(0, nTmpPos) );
+            if (aCTLOptions.IsCTLSequenceCheckingTypeAndReplace())
+            {
+                OUString aNewText( aOldText );
+                xISC->correctInputSequence( aNewText, nTmpPos - 1, c, nCheckMode );
+
+                // find position of first character that has changed
+                const sal_Int32 nOldLen = aOldText.getLength();
+                const sal_Int32 nNewLen = aNewText.getLength();
+                const sal_Unicode *pOldTxt = aOldText.getStr();
+                const sal_Unicode *pNewTxt = aNewText.getStr();
+                sal_Int32 nChgPos = 0;
+                while ( nChgPos < nOldLen && nChgPos < nNewLen &&
+                        pOldTxt[nChgPos] == pNewTxt[nChgPos] )
+                    ++nChgPos;
+
+                OUString aChgText( aNewText.copy( nChgPos ) );
+
+                // select text from first pos to be changed to current pos
+                TextSelection aSel( TextPaM( aPaM.GetPara(), nChgPos ), aPaM );
+
+                if (!aChgText.isEmpty())
+                    // ImpInsertText implicitly handles undo...
+                    return ImpInsertText( aSel, aChgText );
+                else
+                    return aPaM;
+            }
+            else
+            {
+                // should the character be ignored (i.e. not get inserted) ?
+                if (!xISC->checkInputSequence( aOldText, nTmpPos - 1, c, nCheckMode ))
+                    return aPaM;    // nothing to be done -> no need for undo
+            }
+        }
+
+        // at this point now we will insert the character 'normally' some lines below...
+    }
+
+    if ( IsUndoEnabled() && !IsInUndo() )
+    {
+        std::unique_ptr<TextUndoInsertChars> pNewUndo(new TextUndoInsertChars( this, aPaM, OUString(c) ));
+        bool bTryMerge = !bDoOverwrite && ( c != ' ' );
+        InsertUndo( std::move(pNewUndo), bTryMerge );
+    }
+
+    TEParaPortion* pPortion = mpTEParaPortions->GetObject( aPaM.GetPara() );
+    pPortion->MarkInvalid( aPaM.GetIndex(), 1 );
+    if ( c == '\t' )
+        pPortion->SetNotSimpleInvalid();
+    aPaM = mpDoc->InsertText( aPaM, c );
+    ImpCharsInserted( aPaM.GetPara(), aPaM.GetIndex()-1, 1 );
+
+    TextModified();
+
+    if ( bUndoAction )
+        UndoActionEnd();
+
+    return aPaM;
+}
+
+TextPaM TextEngine::ImpInsertText( const TextSelection& rCurSel, const OUString& rStr )
+{
+    UndoActionStart();
+
+    TextPaM aPaM;
+
+    if ( rCurSel.HasRange() )
+        aPaM = ImpDeleteText( rCurSel );
+    else
+        aPaM = rCurSel.GetEnd();
+
+    OUString aText(convertLineEnd(rStr, LINEEND_LF));
+
+    sal_Int32 nStart = 0;
+    while ( nStart < aText.getLength() )
+    {
+        sal_Int32 nEnd = aText.indexOf( LINE_SEP, nStart );
+        if (nEnd == -1)
+            nEnd = aText.getLength(); // do not dereference!
+
+        // Start == End => empty line
+        if ( nEnd > nStart )
+        {
+            OUString aLine(aText.copy(nStart, nEnd-nStart));
+            if ( IsUndoEnabled() && !IsInUndo() )
+                InsertUndo( std::make_unique<TextUndoInsertChars>( this, aPaM, aLine ) );
+
+            TEParaPortion* pPortion = mpTEParaPortions->GetObject( aPaM.GetPara() );
+            pPortion->MarkInvalid( aPaM.GetIndex(), aLine.getLength() );
+            if (aLine.indexOf( '\t' ) != -1)
+                pPortion->SetNotSimpleInvalid();
+
+            aPaM = mpDoc->InsertText( aPaM, aLine );
+            ImpCharsInserted( aPaM.GetPara(), aPaM.GetIndex()-aLine.getLength(), aLine.getLength() );
+
+        }
+        if ( nEnd < aText.getLength() )
+            aPaM = ImpInsertParaBreak( aPaM );
+
+        if ( nEnd == aText.getLength() )    // #108611# prevent overflow in "nStart = nEnd+1" calculation
+            break;
+
+        nStart = nEnd+1;
+    }
+
+    UndoActionEnd();
+
+    TextModified();
+    return aPaM;
+}
+
+TextPaM TextEngine::ImpInsertParaBreak( const TextSelection& rCurSel )
+{
+    TextPaM aPaM;
+    if ( rCurSel.HasRange() )
+        aPaM = ImpDeleteText( rCurSel );
+    else
+        aPaM = rCurSel.GetEnd();
+
+    return ImpInsertParaBreak( aPaM );
+}
+
+TextPaM TextEngine::ImpInsertParaBreak( const TextPaM& rPaM )
+{
+    if ( IsUndoEnabled() && !IsInUndo() )
+        InsertUndo( std::make_unique<TextUndoSplitPara>( this, rPaM.GetPara(), rPaM.GetIndex() ) );
+
+    TextNode* pNode = mpDoc->GetNodes()[ rPaM.GetPara() ].get();
+    bool bFirstParaContentChanged = rPaM.GetIndex() < pNode->GetText().getLength();
+
+    TextPaM aPaM( mpDoc->InsertParaBreak( rPaM ) );
+
+    TEParaPortion* pPortion = mpTEParaPortions->GetObject( rPaM.GetPara() );
+    SAL_WARN_IF( !pPortion, "vcl", "ImpInsertParaBreak: Hidden Portion" );
+    pPortion->MarkInvalid( rPaM.GetIndex(), 0 );
+
+    TextNode* pNewNode = mpDoc->GetNodes()[ aPaM.GetPara() ].get();
+    TEParaPortion* pNewPortion = new TEParaPortion( pNewNode );
+    mpTEParaPortions->Insert( pNewPortion, aPaM.GetPara() );
+    ImpParagraphInserted( aPaM.GetPara() );
+
+    CursorMoved( rPaM.GetPara() );  // if empty attribute created
+    TextModified();
+
+    if ( bFirstParaContentChanged )
+        Broadcast( TextHint( SfxHintId::TextParaContentChanged, rPaM.GetPara() ) );
+
+    return aPaM;
+}
+
+tools::Rectangle TextEngine::PaMtoEditCursor( const TextPaM& rPaM, bool bSpecial )
+{
+    SAL_WARN_IF( !GetUpdateMode(), "vcl", "PaMtoEditCursor: GetUpdateMode()" );
+
+    tools::Rectangle aEditCursor;
+    tools::Long nY = 0;
+
+    if ( !mbHasMultiLineParas )
+    {
+        nY = rPaM.GetPara() * mnCharHeight;
+    }
+    else
+    {
+        for ( sal_uInt32 nPortion = 0; nPortion < rPaM.GetPara(); ++nPortion )
+        {
+            TEParaPortion* pPortion = mpTEParaPortions->GetObject(nPortion);
+            nY += pPortion->GetLines().size() * mnCharHeight;
+        }
+    }
+
+    aEditCursor = GetEditCursor( rPaM, bSpecial );
+    aEditCursor.AdjustTop(nY );
+    aEditCursor.AdjustBottom(nY );
+    return aEditCursor;
+}
+
+tools::Rectangle TextEngine::GetEditCursor( const TextPaM& rPaM, bool bSpecial, bool bPreferPortionStart )
+{
+    if ( !IsFormatted() && !IsFormatting() )
+        FormatAndUpdate();
+
+    TEParaPortion* pPortion = mpTEParaPortions->GetObject( rPaM.GetPara() );
+    //TextNode* pNode = mpDoc->GetNodes().GetObject( rPaM.GetPara() );
+
+    /*
+      bSpecial: If behind the last character of a made up line, stay at the
+                  end of the line, not at the start of the next line.
+      Purpose:  - really END = > behind the last character
+                - to selection...
+
+    */
+
+    tools::Long nY = 0;
+    sal_Int32 nCurIndex = 0;
+    TextLine* pLine = nullptr;
+    for (TextLine & rTmpLine : pPortion->GetLines())
+    {
+        if ( ( rTmpLine.GetStart() == rPaM.GetIndex() ) || ( rTmpLine.IsIn( rPaM.GetIndex(), bSpecial ) ) )
+        {
+            pLine = &rTmpLine;
+            break;
+        }
+
+        nCurIndex = nCurIndex + rTmpLine.GetLen();
+        nY += mnCharHeight;
+    }
+    if ( !pLine )
+    {
+        // Cursor at end of paragraph
+        SAL_WARN_IF( rPaM.GetIndex() != nCurIndex, "vcl", "GetEditCursor: Bad Index!" );
+
+        pLine = & ( pPortion->GetLines().back() );
+        nY -= mnCharHeight;
+    }
+
+    tools::Rectangle aEditCursor;
+
+    aEditCursor.SetTop( nY );
+    nY += mnCharHeight;
+    aEditCursor.SetBottom( nY-1 );
+
+    // search within the line
+    tools::Long nX = ImpGetXPos( rPaM.GetPara(), pLine, rPaM.GetIndex(), bPreferPortionStart );
+    aEditCursor.SetLeft(nX);
+    aEditCursor.SetRight(nX);
+    return aEditCursor;
+}
+
+tools::Long TextEngine::ImpGetXPos( sal_uInt32 nPara, TextLine* pLine, sal_Int32 nIndex, bool bPreferPortionStart )
+{
+    SAL_WARN_IF( ( nIndex < pLine->GetStart() ) || ( nIndex > pLine->GetEnd() ) , "vcl", "ImpGetXPos: Bad parameters!" );
+
+    bool bDoPreferPortionStart = bPreferPortionStart;
+    // Assure that the portion belongs to this line
+    if ( nIndex == pLine->GetStart() )
+        bDoPreferPortionStart = true;
+    else if ( nIndex == pLine->GetEnd() )
+        bDoPreferPortionStart = false;
+
+    TEParaPortion* pParaPortion = mpTEParaPortions->GetObject( nPara );
+
+    sal_Int32 nTextPortionStart = 0;
+    std::size_t nTextPortion = pParaPortion->GetTextPortions().FindPortion( nIndex, nTextPortionStart, bDoPreferPortionStart );
+
+    SAL_WARN_IF( ( nTextPortion < pLine->GetStartPortion() ) || ( nTextPortion > pLine->GetEndPortion() ), "vcl", "GetXPos: Portion not in current line!" );
+
+    TETextPortion& rPortion = pParaPortion->GetTextPortions()[ nTextPortion ];
+
+    tools::Long nX = ImpGetPortionXOffset( nPara, pLine, nTextPortion );
+
+    tools::Long nPortionTextWidth = rPortion.GetWidth();
+
+    if ( nTextPortionStart != nIndex )
+    {
+        // Search within portion...
+        if ( nIndex == ( nTextPortionStart + rPortion.GetLen() ) )
+        {
+            // End of Portion
+            if ( ( rPortion.GetKind() == PORTIONKIND_TAB ) ||
+                 ( !IsRightToLeft() && !rPortion.IsRightToLeft() ) ||
+                 ( IsRightToLeft() && rPortion.IsRightToLeft() ) )
+            {
+                nX += nPortionTextWidth;
+                if ( ( rPortion.GetKind() == PORTIONKIND_TAB ) && ( (nTextPortion+1) < pParaPortion->GetTextPortions().size() ) )
+                {
+                    TETextPortion& rNextPortion = pParaPortion->GetTextPortions()[ nTextPortion+1 ];
+                    if (rNextPortion.GetKind() != PORTIONKIND_TAB && IsRightToLeft() != rNextPortion.IsRightToLeft())
+                    {
+                        // End of the tab portion, use start of next for cursor pos
+                        SAL_WARN_IF( bPreferPortionStart, "vcl", "ImpGetXPos: How can we get here!" );
+                        nX = ImpGetXPos( nPara, pLine, nIndex, true );
+                    }
+
+                }
+            }
+        }
+        else if ( rPortion.GetKind() == PORTIONKIND_TEXT )
+        {
+            SAL_WARN_IF( nIndex == pLine->GetStart(), "vcl", "ImpGetXPos: Strange behavior" );
+
+            tools::Long nPosInPortion = CalcTextWidth( nPara, nTextPortionStart, nIndex-nTextPortionStart );
+
+            if (IsRightToLeft() == rPortion.IsRightToLeft())
+            {
+                nX += nPosInPortion;
+            }
+            else
+            {
+                nX += nPortionTextWidth - nPosInPortion;
+            }
+        }
+    }
+    else // if ( nIndex == pLine->GetStart() )
+    {
+        if (rPortion.GetKind() != PORTIONKIND_TAB && IsRightToLeft() != rPortion.IsRightToLeft())
+        {
+            nX += nPortionTextWidth;
+        }
+    }
+
+    return nX;
+}
+
+const TextAttrib* TextEngine::FindAttrib( const TextPaM& rPaM, sal_uInt16 nWhich ) const
+{
+    const TextAttrib* pAttr = nullptr;
+    const TextCharAttrib* pCharAttr = FindCharAttrib( rPaM, nWhich );
+    if ( pCharAttr )
+        pAttr = &pCharAttr->GetAttr();
+    return pAttr;
+}
+
+const TextCharAttrib* TextEngine::FindCharAttrib( const TextPaM& rPaM, sal_uInt16 nWhich ) const
+{
+    const TextCharAttrib* pAttr = nullptr;
+    TextNode* pNode = mpDoc->GetNodes()[ rPaM.GetPara() ].get();
+    if (pNode && (rPaM.GetIndex() <= pNode->GetText().getLength()))
+        pAttr = pNode->GetCharAttribs().FindAttrib( nWhich, rPaM.GetIndex() );
+    return pAttr;
+}
+
+TextPaM TextEngine::GetPaM( const Point& rDocPos )
+{
+    SAL_WARN_IF( !GetUpdateMode(), "vcl", "GetPaM: GetUpdateMode()" );
+
+    tools::Long nY = 0;
+    for ( sal_uInt32 nPortion = 0; nPortion < mpTEParaPortions->Count(); ++nPortion )
+    {
+        TEParaPortion* pPortion = mpTEParaPortions->GetObject( nPortion );
+        tools::Long nTmpHeight = pPortion->GetLines().size() * mnCharHeight;
+        nY += nTmpHeight;
+        if ( nY > rDocPos.Y() )
+        {
+            nY -= nTmpHeight;
+            Point aPosInPara( rDocPos );
+            aPosInPara.AdjustY( -nY );
+
+            TextPaM aPaM( nPortion, 0 );
+            aPaM.GetIndex() = ImpFindIndex( nPortion, aPosInPara );
+            return aPaM;
+        }
+    }
+
+    // not found - go to last visible
+    const sal_uInt32 nLastNode = static_cast<sal_uInt32>(mpDoc->GetNodes().size() - 1);
+    TextNode* pLast = mpDoc->GetNodes()[ nLastNode ].get();
+    return TextPaM( nLastNode, pLast->GetText().getLength() );
+}
+
+sal_Int32 TextEngine::ImpFindIndex( sal_uInt32 nPortion, const Point& rPosInPara )
+{
+    SAL_WARN_IF( !IsFormatted(), "vcl", "GetPaM: Not formatted" );
+    TEParaPortion* pPortion = mpTEParaPortions->GetObject( nPortion );
+
+    sal_Int32 nCurIndex = 0;
+
+    tools::Long nY = 0;
+    TextLine* pLine = nullptr;
+    std::vector<TextLine>::size_type nLine;
+    for ( nLine = 0; nLine < pPortion->GetLines().size(); nLine++ )
+    {
+        TextLine& rmpLine = pPortion->GetLines()[ nLine ];
+        nY += mnCharHeight;
+        if ( nY > rPosInPara.Y() )  // that's it
+        {
+            pLine = &rmpLine;
+            break;                  // correct Y-Position not needed
+        }
+    }
+
+    assert(pLine && "ImpFindIndex: pLine ?");
+
+    nCurIndex = GetCharPos( nPortion, nLine, rPosInPara.X() );
+
+    if ( nCurIndex && ( nCurIndex == pLine->GetEnd() ) &&
+         ( pLine != &( pPortion->GetLines().back() ) ) )
+    {
+        uno::Reference < i18n::XBreakIterator > xBI = GetBreakIterator();
+        sal_Int32 nCount = 1;
+        nCurIndex = xBI->previousCharacters( pPortion->GetNode()->GetText(), nCurIndex, GetLocale(), i18n::CharacterIteratorMode::SKIPCELL, nCount, nCount );
+    }
+    return nCurIndex;
+}
+
+sal_Int32 TextEngine::GetCharPos( sal_uInt32 nPortion, std::vector<TextLine>::size_type nLine, tools::Long nXPos )
+{
+
+    TEParaPortion* pPortion = mpTEParaPortions->GetObject( nPortion );
+    TextLine& rLine = pPortion->GetLines()[ nLine ];
+
+    sal_Int32 nCurIndex = rLine.GetStart();
+
+    tools::Long nTmpX = rLine.GetStartX();
+    if ( nXPos <= nTmpX )
+        return nCurIndex;
+
+    for ( std::size_t i = rLine.GetStartPortion(); i <= rLine.GetEndPortion(); i++ )
+    {
+        TETextPortion& rTextPortion = pPortion->GetTextPortions()[ i ];
+        nTmpX += rTextPortion.GetWidth();
+
+        if ( nTmpX > nXPos )
+        {
+            if( rTextPortion.GetLen() > 1 )
+            {
+                nTmpX -= rTextPortion.GetWidth();  // position before Portion
+                // TODO: Optimize: no GetTextBreak if fixed-width Font
+                vcl::Font aFont;
+                SeekCursor( nPortion, nCurIndex+1, aFont, nullptr );
+                mpRefDev->SetFont( aFont);
+                tools::Long nPosInPortion = nXPos-nTmpX;
+                if ( IsRightToLeft() != rTextPortion.IsRightToLeft() )
+                    nPosInPortion = rTextPortion.GetWidth() - nPosInPortion;
+                nCurIndex = mpRefDev->GetTextBreak( pPortion->GetNode()->GetText(), nPosInPortion, nCurIndex );
+                // MT: GetTextBreak should assure that we are not within a CTL cell...
+            }
+            return nCurIndex;
+        }
+        nCurIndex += rTextPortion.GetLen();
+    }
+    return nCurIndex;
+}
+
+tools::Long TextEngine::GetTextHeight() const
+{
+    SAL_WARN_IF( !GetUpdateMode(), "vcl", "GetTextHeight: GetUpdateMode()" );
+
+    if ( !IsFormatted() && !IsFormatting() )
+        const_cast<TextEngine*>(this)->FormatAndUpdate();
+
+    return mnCurTextHeight;
+}
+
+tools::Long TextEngine::GetTextHeight( sal_uInt32 nParagraph ) const
+{
+    SAL_WARN_IF( !GetUpdateMode(), "vcl", "GetTextHeight: GetUpdateMode()" );
+
+    if ( !IsFormatted() && !IsFormatting() )
+        const_cast<TextEngine*>(this)->FormatAndUpdate();
+
+    return CalcParaHeight( nParagraph );
+}
+
+tools::Long TextEngine::CalcTextWidth( sal_uInt32 nPara )
+{
+    tools::Long nParaWidth = 0;
+    TEParaPortion* pPortion = mpTEParaPortions->GetObject( nPara );
+    for ( auto nLine = pPortion->GetLines().size(); nLine; )
+    {
+        tools::Long nLineWidth = 0;
+        TextLine& rLine = pPortion->GetLines()[ --nLine ];
+        for ( std::size_t nTP = rLine.GetStartPortion(); nTP <= rLine.GetEndPortion(); nTP++ )
+        {
+            TETextPortion& rTextPortion = pPortion->GetTextPortions()[ nTP ];
+            nLineWidth += rTextPortion.GetWidth();
+        }
+        if ( nLineWidth > nParaWidth )
+            nParaWidth = nLineWidth;
+    }
+    return nParaWidth;
+}
+
+tools::Long TextEngine::CalcTextWidth()
+{
+    if ( !IsFormatted() && !IsFormatting() )
+        FormatAndUpdate();
+
+    if ( mnCurTextWidth < 0 )
+    {
+        mnCurTextWidth = 0;
+        for ( sal_uInt32 nPara = mpTEParaPortions->Count(); nPara; )
+        {
+            const tools::Long nParaWidth = CalcTextWidth( --nPara );
+            if ( nParaWidth > mnCurTextWidth )
+                mnCurTextWidth = nParaWidth;
+        }
+    }
+    return mnCurTextWidth+1;// wider by 1, as CreateLines breaks at >=
+}
+
+tools::Long TextEngine::CalcTextHeight() const
+{
+    SAL_WARN_IF( !GetUpdateMode(), "vcl", "CalcTextHeight: GetUpdateMode()" );
+
+    tools::Long nY = 0;
+    for ( auto nPortion = mpTEParaPortions->Count(); nPortion; )
+        nY += CalcParaHeight( --nPortion );
+    return nY;
+}
+
+tools::Long TextEngine::CalcTextWidth( sal_uInt32 nPara, sal_Int32 nPortionStart, sal_Int32 nLen )
+{
+#ifdef DBG_UTIL
+    // within the text there must not be a Portion change (attribute/tab)!
+    sal_Int32 nTabPos = mpDoc->GetNodes()[ nPara ]->GetText().indexOf( '\t', nPortionStart );
+    SAL_WARN_IF( nTabPos != -1 && nTabPos < (nPortionStart+nLen), "vcl", "CalcTextWidth: Tab!" );
+#endif
+
+    vcl::Font aFont;
+    SeekCursor( nPara, nPortionStart+1, aFont, nullptr );
+    mpRefDev->SetFont( aFont );
+    TextNode* pNode = mpDoc->GetNodes()[ nPara ].get();
+    tools::Long nWidth = mpRefDev->GetTextWidth( pNode->GetText(), nPortionStart, nLen );
+    return nWidth;
+}
+
+void TextEngine::GetTextPortionRange(const TextPaM& rPaM, sal_Int32& nStart, sal_Int32& nEnd)
+{
+    nStart = 0;
+    nEnd = 0;
+    TEParaPortion* pParaPortion = mpTEParaPortions->GetObject( rPaM.GetPara() );
+    for ( std::size_t i = 0; i < pParaPortion->GetTextPortions().size(); ++i )
+    {
+        TETextPortion& rTextPortion = pParaPortion->GetTextPortions()[ i ];
+        if (nStart + rTextPortion.GetLen() > rPaM.GetIndex())
+        {
+            nEnd = nStart + rTextPortion.GetLen();
+            return;
+        }
+        else
+        {
+            nStart += rTextPortion.GetLen();
+        }
+    }
+}
+
+sal_uInt16 TextEngine::GetLineCount( sal_uInt32 nParagraph ) const
+{
+    SAL_WARN_IF( nParagraph >= mpTEParaPortions->Count(), "vcl", "GetLineCount: Out of range" );
+
+    TEParaPortion* pPPortion = mpTEParaPortions->GetObject( nParagraph );
+    if ( pPPortion )
+        return pPPortion->GetLines().size();
+
+    return 0;
+}
+
+sal_Int32 TextEngine::GetLineLen( sal_uInt32 nParagraph, sal_uInt16 nLine ) const
+{
+    SAL_WARN_IF( nParagraph >= mpTEParaPortions->Count(), "vcl", "GetLineCount: Out of range" );
+
+    TEParaPortion* pPPortion = mpTEParaPortions->GetObject( nParagraph );
+    if ( pPPortion && ( nLine < pPPortion->GetLines().size() ) )
+    {
+        return pPPortion->GetLines()[ nLine ].GetLen();
+    }
+
+    return 0;
+}
+
+tools::Long TextEngine::CalcParaHeight( sal_uInt32 nParagraph ) const
+{
+    tools::Long nHeight = 0;
+
+    TEParaPortion* pPPortion = mpTEParaPortions->GetObject( nParagraph );
+    SAL_WARN_IF( !pPPortion, "vcl", "GetParaHeight: paragraph not found" );
+    if ( pPPortion )
+        nHeight = pPPortion->GetLines().size() * mnCharHeight;
+
+    return nHeight;
+}
+
+Range TextEngine::GetInvalidYOffsets( sal_uInt32 nPortion )
+{
+    TEParaPortion* pTEParaPortion = mpTEParaPortions->GetObject( nPortion );
+    sal_uInt16 nLines = pTEParaPortion->GetLines().size();
+    sal_uInt16 nLastInvalid, nFirstInvalid = 0;
+    sal_uInt16 nLine;
+    for ( nLine = 0; nLine < nLines; nLine++ )
+    {
+        TextLine& rL = pTEParaPortion->GetLines()[ nLine ];
+        if ( rL.IsInvalid() )
+        {
+            nFirstInvalid = nLine;
+            break;
+        }
+    }
+
+    for ( nLastInvalid = nFirstInvalid; nLastInvalid < nLines; nLastInvalid++ )
+    {
+        TextLine& rL = pTEParaPortion->GetLines()[ nLine ];
+        if ( rL.IsValid() )
+            break;
+    }
+
+    if ( nLastInvalid >= nLines )
+        nLastInvalid = nLines-1;
+
+    return Range( nFirstInvalid*mnCharHeight, ((nLastInvalid+1)*mnCharHeight)-1 );
+}
+
+sal_uInt32 TextEngine::GetParagraphCount() const
+{
+    return static_cast<sal_uInt32>(mpDoc->GetNodes().size());
+}
+
+void TextEngine::EnableUndo( bool bEnable )
+{
+    // delete list when switching mode
+    if ( bEnable != IsUndoEnabled() )
+        ResetUndo();
+
+    mbUndoEnabled = bEnable;
+}
+
+SfxUndoManager& TextEngine::GetUndoManager()
+{
+    if ( !mpUndoManager )
+        mpUndoManager.reset( new TextUndoManager( this ) );
+    return *mpUndoManager;
+}
+
+void TextEngine::UndoActionStart( sal_uInt16 nId )
+{
+    if ( IsUndoEnabled() && !IsInUndo() )
+    {
+        GetUndoManager().EnterListAction( OUString(), OUString(), nId, ViewShellId(-1) );
+    }
+}
+
+void TextEngine::UndoActionEnd()
+{
+    if ( IsUndoEnabled() && !IsInUndo() )
+        GetUndoManager().LeaveListAction();
+}
+
+void TextEngine::InsertUndo( std::unique_ptr<TextUndo> pUndo, bool bTryMerge )
+{
+    SAL_WARN_IF( IsInUndo(), "vcl", "InsertUndo: in Undo mode!" );
+    GetUndoManager().AddUndoAction( std::move(pUndo), bTryMerge );
+}
+
+void TextEngine::ResetUndo()
+{
+    if ( mpUndoManager )
+        mpUndoManager->Clear();
+}
+
+void TextEngine::InsertContent( std::unique_ptr<TextNode> pNode, sal_uInt32 nPara )
+{
+    SAL_WARN_IF( !pNode, "vcl", "InsertContent: NULL-Pointer!" );
+    SAL_WARN_IF( !IsInUndo(), "vcl", "InsertContent: only in Undo()!" );
+    TEParaPortion* pNew = new TEParaPortion( pNode.get() );
+    mpTEParaPortions->Insert( pNew, nPara );
+    mpDoc->GetNodes().insert( mpDoc->GetNodes().begin() + nPara, std::move(pNode) );
+    ImpParagraphInserted( nPara );
+}
+
+TextPaM TextEngine::SplitContent( sal_uInt32 nNode, sal_Int32 nSepPos )
+{
+#ifdef DBG_UTIL
+    TextNode* pNode = mpDoc->GetNodes()[ nNode ].get();
+    SAL_WARN_IF( !pNode, "vcl", "SplitContent: Invalid Node!" );
+    SAL_WARN_IF( !IsInUndo(), "vcl", "SplitContent: only in Undo()!" );
+    SAL_WARN_IF( nSepPos > pNode->GetText().getLength(), "vcl", "SplitContent: Bad index" );
+#endif
+    TextPaM aPaM( nNode, nSepPos );
+    return ImpInsertParaBreak( aPaM );
+}
+
+TextPaM TextEngine::ConnectContents( sal_uInt32 nLeftNode )
+{
+    SAL_WARN_IF( !IsInUndo(), "vcl", "ConnectContent: only in Undo()!" );
+    return ImpConnectParagraphs( nLeftNode, nLeftNode+1 );
+}
+
+void TextEngine::SeekCursor( sal_uInt32 nPara, sal_Int32 nPos, vcl::Font& rFont, OutputDevice* pOutDev )
+{
+    rFont = maFont;
+    if ( pOutDev )
+        pOutDev->SetTextColor( maTextColor );
+
+    TextNode* pNode = mpDoc->GetNodes()[ nPara ].get();
+    sal_uInt16 nAttribs = pNode->GetCharAttribs().Count();
+    for ( sal_uInt16 nAttr = 0; nAttr < nAttribs; nAttr++ )
+    {
+        TextCharAttrib& rAttrib = pNode->GetCharAttribs().GetAttrib( nAttr );
+        if ( rAttrib.GetStart() > nPos )
+            break;
+
+        // When seeking don't use Attr that start there!
+        // Do not use empty attributes:
+        // - If just being setup and empty => no effect on Font
+        // - Characters that are setup in an empty paragraph become visible right away.
+        if ( ( ( rAttrib.GetStart() < nPos ) && ( rAttrib.GetEnd() >= nPos ) )
+                    || pNode->GetText().isEmpty() )
+        {
+            if ( rAttrib.Which() != TEXTATTR_FONTCOLOR )
+            {
+                rAttrib.GetAttr().SetFont(rFont);
+            }
+            else
+            {
+                if ( pOutDev )
+                    pOutDev->SetTextColor( static_cast<const TextAttribFontColor&>(rAttrib.GetAttr()).GetColor() );
+            }
+        }
+    }
+
+    if ( !(mpIMEInfos && mpIMEInfos->pAttribs && ( mpIMEInfos->aPos.GetPara() == nPara ) &&
+        ( nPos > mpIMEInfos->aPos.GetIndex() ) && ( nPos <= ( mpIMEInfos->aPos.GetIndex() + mpIMEInfos->nLen ) )) )
+        return;
+
+    ExtTextInputAttr nAttr = mpIMEInfos->pAttribs[ nPos - mpIMEInfos->aPos.GetIndex() - 1 ];
+    if ( nAttr & ExtTextInputAttr::Underline )
+        rFont.SetUnderline( LINESTYLE_SINGLE );
+    else if ( nAttr & ExtTextInputAttr::DoubleUnderline )
+        rFont.SetUnderline( LINESTYLE_DOUBLE );
+    else if ( nAttr & ExtTextInputAttr::BoldUnderline )
+        rFont.SetUnderline( LINESTYLE_BOLD );
+    else if ( nAttr & ExtTextInputAttr::DottedUnderline )
+        rFont.SetUnderline( LINESTYLE_DOTTED );
+    else if ( nAttr & ExtTextInputAttr::DashDotUnderline )
+        rFont.SetUnderline( LINESTYLE_DOTTED );
+    if ( nAttr & ExtTextInputAttr::RedText )
+        rFont.SetColor( COL_RED );
+    else if ( nAttr & ExtTextInputAttr::HalfToneText )
+        rFont.SetColor( COL_LIGHTGRAY );
+    if ( nAttr & ExtTextInputAttr::Highlight )
+    {
+        const StyleSettings& rStyleSettings = Application::GetSettings().GetStyleSettings();
+        rFont.SetColor( rStyleSettings.GetHighlightTextColor() );
+        rFont.SetFillColor( rStyleSettings.GetHighlightColor() );
+        rFont.SetTransparent( false );
+    }
+    else if ( nAttr & ExtTextInputAttr::GrayWaveline )
+    {
+        rFont.SetUnderline( LINESTYLE_WAVE );
+//          if( pOut )
+//              pOut->SetTextLineColor( COL_LIGHTGRAY );
+    }
+}
+
+void TextEngine::FormatAndUpdate( TextView* pCurView )
+{
+    if ( mbDowning )
+        return;
+
+    if ( IsInUndo() )
+        IdleFormatAndUpdate( pCurView );
+    else
+    {
+        FormatDoc();
+        UpdateViews( pCurView );
+    }
+}
+
+void TextEngine::IdleFormatAndUpdate( TextView* pCurView, sal_uInt16 nMaxTimerRestarts )
+{
+    mpIdleFormatter->DoIdleFormat( pCurView, nMaxTimerRestarts );
+}
+
+void TextEngine::TextModified()
+{
+    mbFormatted = false;
+    mbModified = true;
+}
+
+void TextEngine::UpdateViews( TextView* pCurView )
+{
+    if ( !GetUpdateMode() || IsFormatting() || maInvalidRect.IsEmpty() )
+        return;
+
+    SAL_WARN_IF( !IsFormatted(), "vcl", "UpdateViews: Doc not formatted!" );
+
+    for (TextView* pView : *mpViews)
+    {
+        pView->HideCursor();
+
+        tools::Rectangle aClipRect( maInvalidRect );
+        const Size aOutSz = pView->GetWindow()->GetOutputSizePixel();
+        const tools::Rectangle aVisArea( pView->GetStartDocPos(), aOutSz );
+        aClipRect.Intersection( aVisArea );
+        if ( !aClipRect.IsEmpty() )
+        {
+            // translate into window coordinates
+            Point aNewPos = pView->GetWindowPos( aClipRect.TopLeft() );
+            if ( IsRightToLeft() )
+                aNewPos.AdjustX( -(aOutSz.Width() - 1) );
+            aClipRect.SetPos( aNewPos );
+
+            pView->GetWindow()->Invalidate( aClipRect );
+        }
+    }
+
+    if ( pCurView )
+    {
+        pCurView->ShowCursor( pCurView->IsAutoScroll() );
+    }
+
+    maInvalidRect = tools::Rectangle();
+}
+
+IMPL_LINK_NOARG(TextEngine, IdleFormatHdl, Timer *, void)
+{
+    FormatAndUpdate( mpIdleFormatter->GetView() );
+}
+
+void TextEngine::CheckIdleFormatter()
+{
+    mpIdleFormatter->ForceTimeout();
+}
+
+void TextEngine::FormatFullDoc()
+{
+    for ( sal_uInt32 nPortion = 0; nPortion < mpTEParaPortions->Count(); ++nPortion )
+    {
+        TEParaPortion* pTEParaPortion = mpTEParaPortions->GetObject( nPortion );
+        pTEParaPortion->MarkSelectionInvalid( 0 );
+    }
+    mbFormatted = false;
+    FormatDoc();
+}
+
+void TextEngine::FormatDoc()
+{
+    if ( IsFormatted() || !GetUpdateMode() || IsFormatting() )
+        return;
+
+    mbIsFormatting = true;
+    mbHasMultiLineParas = false;
+
+    tools::Long nY = 0;
+    bool bGrow = false;
+
+    maInvalidRect = tools::Rectangle(); // clear
+    for ( sal_uInt32 nPara = 0; nPara < mpTEParaPortions->Count(); ++nPara )
+    {
+        TEParaPortion* pTEParaPortion = mpTEParaPortions->GetObject( nPara );
+        if ( pTEParaPortion->IsInvalid() )
+        {
+            const tools::Long nOldParaWidth = mnCurTextWidth >= 0 ? CalcTextWidth( nPara ) : -1;
+
+            Broadcast( TextHint( SfxHintId::TextFormatPara, nPara ) );
+
+            if ( CreateLines( nPara ) )
+                bGrow = true;
+
+            // set InvalidRect only once
+            if ( maInvalidRect.IsEmpty() )
+            {
+                // otherwise remains Empty() for Paperwidth 0 (AutoPageSize)
+                const tools::Long nWidth = mnMaxTextWidth
+                    ? mnMaxTextWidth
+                    : std::numeric_limits<tools::Long>::max();
+                const Range aInvRange( GetInvalidYOffsets( nPara ) );
+                maInvalidRect = tools::Rectangle( Point( 0, nY+aInvRange.Min() ),
+                    Size( nWidth, aInvRange.Len() ) );
+            }
+            else
+            {
+                maInvalidRect.SetBottom( nY + CalcParaHeight( nPara ) );
+            }
+
+            if ( mnCurTextWidth >= 0 )
+            {
+                const tools::Long nNewParaWidth = CalcTextWidth( nPara );
+                if ( nNewParaWidth >= mnCurTextWidth )
+                    mnCurTextWidth = nNewParaWidth;
+                else if ( nOldParaWidth >= mnCurTextWidth )
+                    mnCurTextWidth = -1;
+            }
+        }
+        else if ( bGrow )
+        {
+            maInvalidRect.SetBottom( nY + CalcParaHeight( nPara ) );
+        }
+        nY += CalcParaHeight( nPara );
+        if ( !mbHasMultiLineParas && pTEParaPortion->GetLines().size() > 1 )
+            mbHasMultiLineParas = true;
+    }
+
+    if ( !maInvalidRect.IsEmpty() )
+    {
+        const tools::Long nNewHeight = CalcTextHeight();
+        const tools::Long nDiff = nNewHeight - mnCurTextHeight;
+        if ( nNewHeight < mnCurTextHeight )
+        {
+            maInvalidRect.SetBottom( std::max( nNewHeight, mnCurTextHeight ) );
+            if ( maInvalidRect.IsEmpty() )
+            {
+                maInvalidRect.SetTop( 0 );
+                // Left and Right are not evaluated, but set because of IsEmpty
+                maInvalidRect.SetLeft( 0 );
+                maInvalidRect.SetRight( mnMaxTextWidth );
+            }
+        }
+
+        mnCurTextHeight = nNewHeight;
+        if ( nDiff )
+        {
+            mbFormatted = true;
+            Broadcast( TextHint( SfxHintId::TextHeightChanged ) );
+        }
+    }
+
+    mbIsFormatting = false;
+    mbFormatted = true;
+
+    Broadcast( TextHint( SfxHintId::TextFormatted ) );
+}
+
+void TextEngine::CreateAndInsertEmptyLine( sal_uInt32 nPara )
+{
+    TextNode* pNode = mpDoc->GetNodes()[ nPara ].get();
+    TEParaPortion* pTEParaPortion = mpTEParaPortions->GetObject( nPara );
+
+    TextLine aTmpLine;
+    aTmpLine.SetStart( pNode->GetText().getLength() );
+    aTmpLine.SetEnd( aTmpLine.GetStart() );
+
+    if ( ImpGetAlign() == TxtAlign::Center )
+        aTmpLine.SetStartX( static_cast<short>(mnMaxTextWidth / 2) );
+    else if ( ImpGetAlign() == TxtAlign::Right )
+        aTmpLine.SetStartX( static_cast<short>(mnMaxTextWidth) );
+    else
+        aTmpLine.SetStartX( mpDoc->GetLeftMargin() );
+
+    bool bLineBreak = !pNode->GetText().isEmpty();
+
+    TETextPortion aDummyPortion( 0 );
+    aDummyPortion.GetWidth() = 0;
+    pTEParaPortion->GetTextPortions().push_back( aDummyPortion );
+
+    if ( bLineBreak )
+    {
+        // -2: The new one is already inserted.
+        const std::size_t nPos = pTEParaPortion->GetTextPortions().size() - 1;
+        aTmpLine.SetStartPortion( nPos );
+        aTmpLine.SetEndPortion( nPos );
+    }
+    pTEParaPortion->GetLines().push_back( aTmpLine );
+}
+
+void TextEngine::ImpBreakLine( sal_uInt32 nPara, TextLine* pLine, sal_Int32 nPortionStart, tools::Long nRemainingWidth )
+{
+    TextNode* pNode = mpDoc->GetNodes()[ nPara ].get();
+
+    // Font still should be adjusted
+    sal_Int32 nMaxBreakPos = mpRefDev->GetTextBreak( pNode->GetText(), nRemainingWidth, nPortionStart );
+
+    SAL_WARN_IF( nMaxBreakPos >= pNode->GetText().getLength(), "vcl", "ImpBreakLine: Break?!" );
+
+    if ( nMaxBreakPos == -1 )   // GetTextBreak() != GetTextSize()
+        nMaxBreakPos = pNode->GetText().getLength() - 1;
+
+    uno::Reference < i18n::XBreakIterator > xBI = GetBreakIterator();
+    i18n::LineBreakHyphenationOptions aHyphOptions( nullptr, uno::Sequence< beans::PropertyValue >(), 1 );
+
+    i18n::LineBreakUserOptions aUserOptions;
+    aUserOptions.forbiddenBeginCharacters = ImpGetLocaleDataWrapper()->getForbiddenCharacters().beginLine;
+    aUserOptions.forbiddenEndCharacters = ImpGetLocaleDataWrapper()->getForbiddenCharacters().endLine;
+    aUserOptions.applyForbiddenRules = true;
+    aUserOptions.allowPunctuationOutsideMargin = false;
+    aUserOptions.allowHyphenateEnglish = false;
+
+    static const css::lang::Locale aDefLocale;
+    i18n::LineBreakResults aLBR = xBI->getLineBreak( pNode->GetText(), nMaxBreakPos, aDefLocale, pLine->GetStart(), aHyphOptions, aUserOptions );
+    sal_Int32 nBreakPos = aLBR.breakIndex;
+    if ( nBreakPos <= pLine->GetStart() )
+    {
+        nBreakPos = nMaxBreakPos;
+        if ( nBreakPos <= pLine->GetStart() )
+            nBreakPos = pLine->GetStart() + 1;  // infinite loop otherwise!
+    }
+
+    // the damaged Portion is the End Portion
+    pLine->SetEnd( nBreakPos );
+    const std::size_t nEndPortion = SplitTextPortion( nPara, nBreakPos );
+
+    if ( nBreakPos >= pLine->GetStart() &&
+         nBreakPos < pNode->GetText().getLength() &&
+         pNode->GetText()[ nBreakPos ] == ' ' )
+    {
+        // generally suppress blanks at the end of line
+        TEParaPortion* pTEParaPortion = mpTEParaPortions->GetObject( nPara );
+        TETextPortion& rTP = pTEParaPortion->GetTextPortions()[ nEndPortion ];
+        SAL_WARN_IF( nBreakPos <= pLine->GetStart(), "vcl", "ImpBreakLine: SplitTextPortion at beginning of line?" );
+        rTP.GetWidth() = CalcTextWidth( nPara, nBreakPos-rTP.GetLen(), rTP.GetLen()-1 );
+    }
+    pLine->SetEndPortion( nEndPortion );
+}
+
+std::size_t TextEngine::SplitTextPortion( sal_uInt32 nPara, sal_Int32 nPos )
+{
+
+    // the Portion at nPos is being split, unless there is already a switch at nPos
+    if ( nPos == 0 )
+        return 0;
+
+    std::size_t nSplitPortion;
+    sal_Int32 nTmpPos = 0;
+    TETextPortion* pTextPortion = nullptr;
+    TEParaPortion* pTEParaPortion = mpTEParaPortions->GetObject( nPara );
+    const std::size_t nPortions = pTEParaPortion->GetTextPortions().size();
+    for ( nSplitPortion = 0; nSplitPortion < nPortions; nSplitPortion++ )
+    {
+        TETextPortion& rTP = pTEParaPortion->GetTextPortions()[nSplitPortion];
+        nTmpPos += rTP.GetLen();
+        if ( nTmpPos >= nPos )
+        {
+            if ( nTmpPos == nPos )  // nothing needs splitting
+                return nSplitPortion;
+            pTextPortion = &rTP;
+            break;
+        }
+    }
+
+    SAL_WARN_IF( !pTextPortion, "vcl", "SplitTextPortion: position outside of region!" );
+
+    const sal_Int32 nOverlapp = nTmpPos - nPos;
+    pTextPortion->GetLen() -= nOverlapp;
+    pTextPortion->GetWidth() = CalcTextWidth( nPara, nPos-pTextPortion->GetLen(), pTextPortion->GetLen() );
+    TETextPortion aNewPortion( nOverlapp );
+    pTEParaPortion->GetTextPortions().insert( pTEParaPortion->GetTextPortions().begin() + nSplitPortion + 1, aNewPortion );
+
+    return nSplitPortion;
+}
+
+void TextEngine::CreateTextPortions( sal_uInt32 nPara, sal_Int32 nStartPos )
+{
+    TEParaPortion* pTEParaPortion = mpTEParaPortions->GetObject( nPara );
+    TextNode* pNode = pTEParaPortion->GetNode();
+    SAL_WARN_IF( pNode->GetText().isEmpty(), "vcl", "CreateTextPortions: should not be used for empty paragraphs!" );
+
+    o3tl::sorted_vector<sal_Int32> aPositions;
+    o3tl::sorted_vector<sal_Int32>::const_iterator aPositionsIt;
+    aPositions.insert(0);
+
+    const sal_uInt16 nAttribs = pNode->GetCharAttribs().Count();
+    for ( sal_uInt16 nAttr = 0; nAttr < nAttribs; nAttr++ )
+    {
+        TextCharAttrib& rAttrib = pNode->GetCharAttribs().GetAttrib( nAttr );
+
+        aPositions.insert( rAttrib.GetStart() );
+        aPositions.insert( rAttrib.GetEnd() );
+    }
+    aPositions.insert( pNode->GetText().getLength() );
+
+    const std::vector<TEWritingDirectionInfo>& rWritingDirections = pTEParaPortion->GetWritingDirectionInfos();
+    for ( const auto& rWritingDirection : rWritingDirections )
+        aPositions.insert( rWritingDirection.nStartPos );
+
+    if ( mpIMEInfos && mpIMEInfos->pAttribs && ( mpIMEInfos->aPos.GetPara() == nPara ) )
+    {
+        ExtTextInputAttr nLastAttr = ExtTextInputAttr(0xffff);
+        for( sal_Int32 n = 0; n < mpIMEInfos->nLen; n++ )
+        {
+            if ( mpIMEInfos->pAttribs[n] != nLastAttr )
+            {
+                aPositions.insert( mpIMEInfos->aPos.GetIndex() + n );
+                nLastAttr = mpIMEInfos->pAttribs[n];
+            }
+        }
+    }
+
+    sal_Int32 nTabPos = pNode->GetText().indexOf( '\t' );
+    while ( nTabPos != -1 )
+    {
+        aPositions.insert( nTabPos );
+        aPositions.insert( nTabPos + 1 );
+        nTabPos = pNode->GetText().indexOf( '\t', nTabPos+1 );
+    }
+
+    // Delete starting with...
+    // Unfortunately, the number of TextPortions does not have to be
+    // equal to aPositions.Count(), because of linebreaks
+    sal_Int32 nPortionStart = 0;
+    std::size_t nInvPortion = 0;
+    std::size_t nP;
+    for ( nP = 0; nP < pTEParaPortion->GetTextPortions().size(); nP++ )
+    {
+        TETextPortion& rTmpPortion = pTEParaPortion->GetTextPortions()[nP];
+        nPortionStart += rTmpPortion.GetLen();
+        if ( nPortionStart >= nStartPos )
+        {
+            nPortionStart -= rTmpPortion.GetLen();
+            nInvPortion = nP;
+            break;
+        }
+    }
+    OSL_ENSURE(nP < pTEParaPortion->GetTextPortions().size()
+            || pTEParaPortion->GetTextPortions().empty(),
+            "CreateTextPortions: Nothing to delete!");
+    if ( nInvPortion && ( nPortionStart+pTEParaPortion->GetTextPortions()[nInvPortion].GetLen() > nStartPos ) )
+    {
+        // better one before...
+        // But only if it was within the Portion; otherwise it might be
+        // the only one in the previous line!
+        nInvPortion--;
+        nPortionStart -= pTEParaPortion->GetTextPortions()[nInvPortion].GetLen();
+    }
+    pTEParaPortion->GetTextPortions().DeleteFromPortion( nInvPortion );
+
+    // a Portion might have been created by a line break
+    aPositions.insert( nPortionStart );
+
+    aPositionsIt = aPositions.find( nPortionStart );
+    SAL_WARN_IF( aPositionsIt == aPositions.end(), "vcl", "CreateTextPortions: nPortionStart not found" );
+
+    if ( aPositionsIt != aPositions.end() )
+    {
+        o3tl::sorted_vector<sal_Int32>::const_iterator nextIt = aPositionsIt;
+        for ( ++nextIt; nextIt != aPositions.end(); ++aPositionsIt, ++nextIt )
+        {
+            TETextPortion aNew( *nextIt - *aPositionsIt );
+            pTEParaPortion->GetTextPortions().push_back( aNew );
+        }
+    }
+    OSL_ENSURE(pTEParaPortion->GetTextPortions().size(), "CreateTextPortions: No Portions?!");
+}
+
+void TextEngine::RecalcTextPortion( sal_uInt32 nPara, sal_Int32 nStartPos, sal_Int32 nNewChars )
+{
+    TEParaPortion* pTEParaPortion = mpTEParaPortions->GetObject( nPara );
+    OSL_ENSURE(pTEParaPortion->GetTextPortions().size(), "RecalcTextPortion: no Portions!");
+    OSL_ENSURE(nNewChars, "RecalcTextPortion: Diff == 0");
+
+    TextNode* const pNode = pTEParaPortion->GetNode();
+    if ( nNewChars > 0 )
+    {
+        // If an Attribute is starting/ending at nStartPos, or there is a tab
+        // before nStartPos => a new Portion starts.
+        // Otherwise the Portion is extended at nStartPos.
+        // Or if at the very beginning ( StartPos 0 ) followed by a tab...
+        if ( ( pNode->GetCharAttribs().HasBoundingAttrib( nStartPos ) ) ||
+             ( nStartPos && ( pNode->GetText()[ nStartPos - 1 ] == '\t' ) ) ||
+             ( !nStartPos && ( nNewChars < pNode->GetText().getLength() ) && pNode->GetText()[ nNewChars ] == '\t' ) )
+        {
+            std::size_t nNewPortionPos = 0;
+            if ( nStartPos )
+                nNewPortionPos = SplitTextPortion( nPara, nStartPos ) + 1;
+
+            // Here could be an empty Portion if the paragraph was empty,
+            // or a new line was created by a hard line-break.
+            if ( ( nNewPortionPos < pTEParaPortion->GetTextPortions().size() ) &&
+                    !pTEParaPortion->GetTextPortions()[nNewPortionPos].GetLen() )
+            {
+                // use the empty Portion
+                pTEParaPortion->GetTextPortions()[nNewPortionPos].GetLen() = nNewChars;
+            }
+            else
+            {
+                TETextPortion aNewPortion( nNewChars );
+                pTEParaPortion->GetTextPortions().insert( pTEParaPortion->GetTextPortions().begin() + nNewPortionPos, aNewPortion );
+            }
+        }
+        else
+        {
+            sal_Int32 nPortionStart {0};
+            const std::size_t nTP = pTEParaPortion->GetTextPortions().FindPortion( nStartPos, nPortionStart );
+            TETextPortion& rTP = pTEParaPortion->GetTextPortions()[ nTP ];
+            rTP.GetLen() += nNewChars;
+            rTP.GetWidth() = -1;
+        }
+    }
+    else
+    {
+        // Shrink or remove Portion
+        // Before calling this function, ensure that no Portions were in the deleted range!
+
+        // There must be no Portion reaching into or starting within,
+        // thus: nStartPos <= nPos <= nStartPos - nNewChars(neg.)
+        std::size_t nPortion = 0;
+        sal_Int32 nPos = 0;
+        const sal_Int32 nEnd = nStartPos-nNewChars;
+        const std::size_t nPortions = pTEParaPortion->GetTextPortions().size();
+        TETextPortion* pTP = nullptr;
+        for ( nPortion = 0; nPortion < nPortions; nPortion++ )
+        {
+            pTP = &pTEParaPortion->GetTextPortions()[ nPortion ];
+            if ( ( nPos+pTP->GetLen() ) > nStartPos )
+            {
+                SAL_WARN_IF( nPos > nStartPos, "vcl", "RecalcTextPortion: Bad Start!" );
+                SAL_WARN_IF( nPos+pTP->GetLen() < nEnd, "vcl", "RecalcTextPortion: Bad End!" );
+                break;
+            }
+            nPos += pTP->GetLen();
+        }
+        SAL_WARN_IF( !pTP, "vcl", "RecalcTextPortion: Portion not found!" );
+        if ( ( nPos == nStartPos ) && ( (nPos+pTP->GetLen()) == nEnd ) )
+        {
+            // remove Portion
+            pTEParaPortion->GetTextPortions().erase( pTEParaPortion->GetTextPortions().begin() + nPortion );
+        }
+        else
+        {
+            SAL_WARN_IF( pTP->GetLen() <= (-nNewChars), "vcl", "RecalcTextPortion: Portion too small to shrink!" );
+            pTP->GetLen() += nNewChars;
+        }
+        OSL_ENSURE( pTEParaPortion->GetTextPortions().size(),
+                "RecalcTextPortion: none are left!" );
+    }
+}
+
+void TextEngine::ImpPaint( OutputDevice* pOutDev, const Point& rStartPos, tools::Rectangle const* pPaintArea, TextSelection const* pSelection )
+{
+    if ( !GetUpdateMode() )
+        return;
+
+    if ( !IsFormatted() )
+        FormatDoc();
+
+    vcl::Window* const pOutWin = pOutDev->GetOwnerWindow();
+    const bool bTransparent = (pOutWin && pOutWin->IsPaintTransparent());
+
+    tools::Long nY = rStartPos.Y();
+
+    TextPaM const* pSelStart = nullptr;
+    TextPaM const* pSelEnd = nullptr;
+    if ( pSelection && pSelection->HasRange() )
+    {
+        const bool bInvers = pSelection->GetEnd() < pSelection->GetStart();
+        pSelStart = !bInvers ? &pSelection->GetStart() : &pSelection->GetEnd();
+        pSelEnd = bInvers ? &pSelection->GetStart() : &pSelection->GetEnd();
+    }
+
+    const StyleSettings& rStyleSettings = pOutDev->GetSettings().GetStyleSettings();
+
+    // for all paragraphs
+    for ( sal_uInt32 nPara = 0; nPara < mpTEParaPortions->Count(); ++nPara )
+    {
+        TEParaPortion* pPortion = mpTEParaPortions->GetObject( nPara );
+        // in case while typing Idle-Formatting, asynchronous Paint
+        if ( pPortion->IsInvalid() )
+            return;
+
+        const tools::Long nParaHeight = CalcParaHeight( nPara );
+        if ( !pPaintArea || ( ( nY + nParaHeight ) > pPaintArea->Top() ) )
+        {
+            // for all lines of the paragraph
+            sal_Int32 nIndex = 0;
+            for ( auto & rLine : pPortion->GetLines() )
+            {
+                Point aTmpPos( rStartPos.X() + rLine.GetStartX(), nY );
+
+                if ( !pPaintArea || ( ( nY + mnCharHeight ) > pPaintArea->Top() ) )
+                {
+                    // for all Portions of the line
+                    nIndex = rLine.GetStart();
+                    for ( std::size_t y = rLine.GetStartPortion(); y <= rLine.GetEndPortion(); y++ )
+                    {
+                        OSL_ENSURE(pPortion->GetTextPortions().size(),
+                                "ImpPaint: Line without Textportion!");
+                        TETextPortion& rTextPortion = pPortion->GetTextPortions()[ y ];
+
+                        ImpInitLayoutMode( pOutDev /*, pTextPortion->IsRightToLeft() */);
+
+                        const tools::Long nTxtWidth = rTextPortion.GetWidth();
+                        aTmpPos.setX( rStartPos.X() + ImpGetOutputOffset( nPara, &rLine, nIndex, nIndex ) );
+
+                        // only print if starting in the visible region
+                        if ( ( aTmpPos.X() + nTxtWidth ) >= 0 )
+                        {
+                            switch ( rTextPortion.GetKind() )
+                            {
+                                case PORTIONKIND_TEXT:
+                                    {
+                                        vcl::Font aFont;
+                                        SeekCursor( nPara, nIndex+1, aFont, pOutDev );
+                                        if( bTransparent )
+                                            aFont.SetTransparent( true );
+                                        else if ( pSelection )
+                                            aFont.SetTransparent( false );
+                                        pOutDev->SetFont( aFont );
+
+                                        sal_Int32 nTmpIndex = nIndex;
+                                        sal_Int32 nEnd = nTmpIndex + rTextPortion.GetLen();
+                                        Point aPos = aTmpPos;
+
+                                        bool bDone = false;
+                                        if ( pSelStart )
+                                        {
+                                            // is a part of it in the selection?
+                                            const TextPaM aTextStart( nPara, nTmpIndex );
+                                            const TextPaM aTextEnd( nPara, nEnd );
+                                            if ( ( aTextStart < *pSelEnd ) && ( aTextEnd > *pSelStart ) )
+                                            {
+                                                // 1) vcl::Region before Selection
+                                                if ( aTextStart < *pSelStart )
+                                                {
+                                                    const sal_Int32 nL = pSelStart->GetIndex() - nTmpIndex;
+                                                    pOutDev->SetFont( aFont);
+                                                    pOutDev->SetTextFillColor();
+                                                    aPos.setX( rStartPos.X() + ImpGetOutputOffset( nPara, &rLine, nTmpIndex, nTmpIndex+nL ) );
+                                                    pOutDev->DrawText( aPos, pPortion->GetNode()->GetText(), nTmpIndex, nL );
+                                                    nTmpIndex = nTmpIndex + nL;
+
+                                                }
+                                                // 2) vcl::Region with Selection
+                                                sal_Int32 nL = nEnd - nTmpIndex;
+                                                if ( aTextEnd > *pSelEnd )
+                                                    nL = pSelEnd->GetIndex() - nTmpIndex;
+                                                if ( nL )
+                                                {
+                                                    const Color aOldTextColor = pOutDev->GetTextColor();
+                                                    pOutDev->SetTextColor( rStyleSettings.GetHighlightTextColor() );
+                                                    pOutDev->SetTextFillColor( rStyleSettings.GetHighlightColor() );
+                                                    aPos.setX( rStartPos.X() + ImpGetOutputOffset( nPara, &rLine, nTmpIndex, nTmpIndex+nL ) );
+                                                    pOutDev->DrawText( aPos, pPortion->GetNode()->GetText(), nTmpIndex, nL );
+                                                    pOutDev->SetTextColor( aOldTextColor );
+                                                    pOutDev->SetTextFillColor();
+                                                    nTmpIndex = nTmpIndex + nL;
+                                                }
+
+                                                // 3) vcl::Region after Selection
+                                                if ( nTmpIndex < nEnd )
+                                                {
+                                                    nL = nEnd-nTmpIndex;
+                                                    pOutDev->SetTextFillColor();
+                                                    aPos.setX( rStartPos.X() + ImpGetOutputOffset( nPara, &rLine, nTmpIndex, nTmpIndex+nL ) );
+                                                    pOutDev->DrawText( aPos, pPortion->GetNode()->GetText(), nTmpIndex, nEnd-nTmpIndex );
+                                                }
+                                                bDone = true;
+                                            }
+                                        }
+                                        if ( !bDone )
+                                        {
+                                            pOutDev->SetTextFillColor();
+                                            aPos.setX( rStartPos.X() + ImpGetOutputOffset( nPara, &rLine, nTmpIndex, nEnd ) );
+                                            pOutDev->DrawText( aPos, pPortion->GetNode()->GetText(), nTmpIndex, nEnd-nTmpIndex );
+                                        }
+                                    }
+                                    break;
+                                case PORTIONKIND_TAB:
+                                    // for HideSelection() only Range, pSelection = 0.
+                                    if ( pSelStart ) // also implies pSelEnd
+                                    {
+                                        const tools::Rectangle aTabArea( aTmpPos, Point( aTmpPos.X()+nTxtWidth, aTmpPos.Y()+mnCharHeight-1 ) );
+                                        // is the Tab in the Selection???
+                                        const TextPaM aTextStart(nPara, nIndex);
+                                        const TextPaM aTextEnd(nPara, nIndex + 1);
+                                        if ((aTextStart < *pSelEnd) && (aTextEnd > *pSelStart))
+                                        {
+                                            const Color aOldColor = pOutDev->GetFillColor();
+                                            pOutDev->SetFillColor(
+                                                rStyleSettings.GetHighlightColor());
+                                            pOutDev->DrawRect(aTabArea);
+                                            pOutDev->SetFillColor(aOldColor);
+                                        }
+                                        else
+                                        {
+                                            pOutDev->Erase( aTabArea );
+                                        }
+                                    }
+                                    break;
+                                default:
+                                    OSL_FAIL( "ImpPaint: Unknown Portion-Type !" );
+                            }
+                        }
+
+                        nIndex += rTextPortion.GetLen();
+                    }
+                }
+
+                nY += mnCharHeight;
+
+                if ( pPaintArea && ( nY >= pPaintArea->Bottom() ) )
+                    break;  // no more visible actions
+            }
+        }
+        else
+        {
+            nY += nParaHeight;
+        }
+
+        if ( pPaintArea && ( nY > pPaintArea->Bottom() ) )
+            break;  // no more visible actions
+    }
+}
+
+bool TextEngine::CreateLines( sal_uInt32 nPara )
+{
+    // bool: changing Height of Paragraph Yes/No - true/false
+
+    TextNode* pNode = mpDoc->GetNodes()[ nPara ].get();
+    TEParaPortion* pTEParaPortion = mpTEParaPortions->GetObject( nPara );
+    SAL_WARN_IF( !pTEParaPortion->IsInvalid(), "vcl", "CreateLines: Portion not invalid!" );
+
+    const auto nOldLineCount = pTEParaPortion->GetLines().size();
+
+    // fast special case for empty paragraphs
+    if ( pTEParaPortion->GetNode()->GetText().isEmpty() )
+    {
+        if ( !pTEParaPortion->GetTextPortions().empty() )
+            pTEParaPortion->GetTextPortions().Reset();
+        pTEParaPortion->GetLines().clear();
+        CreateAndInsertEmptyLine( nPara );
+        pTEParaPortion->SetValid();
+        return nOldLineCount != pTEParaPortion->GetLines().size();
+    }
+
+    // initialization
+    if ( pTEParaPortion->GetLines().empty() )
+    {
+        pTEParaPortion->GetLines().emplace_back( );
+    }
+
+    const sal_Int32 nInvalidDiff = pTEParaPortion->GetInvalidDiff();
+    const sal_Int32 nInvalidStart = pTEParaPortion->GetInvalidPosStart();
+    const sal_Int32 nInvalidEnd = nInvalidStart + std::abs( nInvalidDiff );
+    bool bQuickFormat = false;
+
+    if ( pTEParaPortion->GetWritingDirectionInfos().empty() )
+        ImpInitWritingDirections( nPara );
+
+    if ( pTEParaPortion->GetWritingDirectionInfos().size() == 1 && pTEParaPortion->IsSimpleInvalid() )
+    {
+        bQuickFormat = nInvalidDiff != 0;
+        if ( nInvalidDiff < 0 )
+        {
+            // check if deleting across Portion border
+            sal_Int32 nPos = 0;
+            for ( const auto & rTP : pTEParaPortion->GetTextPortions() )
+            {
+                // there must be no Start/End in the deleted region
+                nPos += rTP.GetLen();
+                if ( nPos > nInvalidStart && nPos < nInvalidEnd )
+                {
+                    bQuickFormat = false;
+                    break;
+                }
+            }
+        }
+    }
+
+    if ( bQuickFormat )
+        RecalcTextPortion( nPara, nInvalidStart, nInvalidDiff );
+    else
+        CreateTextPortions( nPara, nInvalidStart );
+
+    // search for line with InvalidPos; start a line prior
+    // flag lines => do not remove!
+
+    sal_uInt16 nLine = pTEParaPortion->GetLines().size()-1;
+    for ( sal_uInt16 nL = 0; nL <= nLine; nL++ )
+    {
+        TextLine& rLine = pTEParaPortion->GetLines()[ nL ];
+        if ( rLine.GetEnd() > nInvalidStart )
+        {
+            nLine = nL;
+            break;
+        }
+        rLine.SetValid();
+    }
+    // start a line before...
+    // if typing at the end, the line before cannot change
+    if ( nLine && ( !pTEParaPortion->IsSimpleInvalid() || ( nInvalidEnd < pNode->GetText().getLength() ) || ( nInvalidDiff <= 0 ) ) )
+        nLine--;
+
+    TextLine* pLine =  &( pTEParaPortion->GetLines()[ nLine ] );
+
+    // format all lines starting here
+    std::size_t nDelFromLine = TETextPortionList::npos;
+
+    sal_Int32 nIndex = pLine->GetStart();
+    TextLine aSaveLine( *pLine );
+
+    while ( nIndex < pNode->GetText().getLength() )
+    {
+        bool bEOL = false;
+        sal_Int32 nPortionStart = 0;
+        sal_Int32 nPortionEnd = 0;
+
+        sal_Int32 nTmpPos = nIndex;
+        std::size_t nTmpPortion = pLine->GetStartPortion();
+        tools::Long nTmpWidth = mpDoc->GetLeftMargin();
+        // do not subtract margin; it is included in TmpWidth
+        tools::Long nXWidth = std::max(
+            mnMaxTextWidth ? mnMaxTextWidth : std::numeric_limits<tools::Long>::max(), nTmpWidth);
+
+        // search for Portion that does not fit anymore into line
+        TETextPortion* pPortion = nullptr;
+        bool bBrokenLine = false;
+
+        while ( ( nTmpWidth <= nXWidth ) && !bEOL && ( nTmpPortion < pTEParaPortion->GetTextPortions().size() ) )
+        {
+            nPortionStart = nTmpPos;
+            pPortion = &pTEParaPortion->GetTextPortions()[ nTmpPortion ];
+            SAL_WARN_IF( !pPortion->GetLen(), "vcl", "CreateLines: Empty Portion!" );
+            if ( pNode->GetText()[ nTmpPos ] == '\t' )
+            {
+                tools::Long nCurPos = nTmpWidth-mpDoc->GetLeftMargin();
+                nTmpWidth = ((nCurPos/mnDefTab)+1)*mnDefTab+mpDoc->GetLeftMargin();
+                pPortion->GetWidth() = nTmpWidth - nCurPos - mpDoc->GetLeftMargin();
+                // infinite loop, if this is the first token of the line and nTmpWidth > aPaperSize.Width !!!
+                if ( ( nTmpWidth >= nXWidth ) && ( nTmpPortion == pLine->GetStartPortion() ) )
+                {
+                    // adjust Tab
+                    pPortion->GetWidth() = nXWidth-1;
+                    nTmpWidth = pPortion->GetWidth();
+                    bEOL = true;
+                    bBrokenLine = true;
+                }
+                pPortion->GetKind() = PORTIONKIND_TAB;
+            }
+            else
+            {
+
+                pPortion->GetWidth() = CalcTextWidth( nPara, nTmpPos, pPortion->GetLen() );
+                nTmpWidth += pPortion->GetWidth();
+
+                pPortion->SetRightToLeft( ImpGetRightToLeft( nPara, nTmpPos+1 ) );
+                pPortion->GetKind() = PORTIONKIND_TEXT;
+            }
+
+            nTmpPos += pPortion->GetLen();
+            nPortionEnd = nTmpPos;
+            nTmpPortion++;
+        }
+
+        // this was perhaps one Portion too far
+        bool bFixedEnd = false;
+        if ( nTmpWidth > nXWidth )
+        {
+            nPortionEnd = nTmpPos;
+            nTmpPos -= pPortion->GetLen();
+            nPortionStart = nTmpPos;
+            nTmpPortion--;
+            bEOL = false;
+
+            nTmpWidth -= pPortion->GetWidth();
+            if ( pPortion->GetKind() == PORTIONKIND_TAB )
+            {
+                bEOL = true;
+                bFixedEnd = true;
+            }
+        }
+        else
+        {
+            bEOL = true;
+            pLine->SetEnd( nPortionEnd );
+            OSL_ENSURE(pTEParaPortion->GetTextPortions().size(),
+                    "CreateLines: No TextPortions?");
+            pLine->SetEndPortion( pTEParaPortion->GetTextPortions().size() - 1 );
+        }
+
+        if ( bFixedEnd )
+        {
+            pLine->SetEnd( nPortionStart );
+            pLine->SetEndPortion( nTmpPortion-1 );
+        }
+        else if ( bBrokenLine )
+        {
+            pLine->SetEnd( nPortionStart+1 );
+            pLine->SetEndPortion( nTmpPortion-1 );
+        }
+        else if ( !bEOL )
+        {
+            SAL_WARN_IF( (nPortionEnd-nPortionStart) != pPortion->GetLen(), "vcl", "CreateLines: There is a Portion after all?!" );
+            const tools::Long nRemainingWidth = mnMaxTextWidth - nTmpWidth;
+            ImpBreakLine( nPara, pLine, nPortionStart, nRemainingWidth );
+        }
+
+        if ( ( ImpGetAlign() == TxtAlign::Center ) || ( ImpGetAlign() == TxtAlign::Right ) )
+        {
+            // adjust
+            tools::Long nTextWidth = 0;
+            for ( std::size_t nTP = pLine->GetStartPortion(); nTP <= pLine->GetEndPortion(); nTP++ )
+            {
+                TETextPortion& rTextPortion = pTEParaPortion->GetTextPortions()[ nTP ];
+                nTextWidth += rTextPortion.GetWidth();
+            }
+            const tools::Long nSpace = mnMaxTextWidth - nTextWidth;
+            if ( nSpace > 0 )
+            {
+                if ( ImpGetAlign() == TxtAlign::Center )
+                    pLine->SetStartX( static_cast<sal_uInt16>(nSpace / 2) );
+                else    // TxtAlign::Right
+                    pLine->SetStartX( static_cast<sal_uInt16>(nSpace) );
+            }
+        }
+        else
+        {
+            pLine->SetStartX( mpDoc->GetLeftMargin() );
+        }
+
+         // check if the line has to be printed again
+        pLine->SetInvalid();
+
+        if ( pTEParaPortion->IsSimpleInvalid() )
+        {
+            // Change due to simple TextChange...
+            // Do not abort formatting, as Portions might have to be split!
+            // Once it is ok to abort, then validate the following lines!
+            // But mark as valid, thus reduce printing...
+            if ( pLine->GetEnd() < nInvalidStart )
+            {
+                if ( *pLine == aSaveLine )
+                {
+                    pLine->SetValid();
+                }
+            }
+            else
+            {
+                const sal_Int32 nStart = pLine->GetStart();
+                const sal_Int32 nEnd = pLine->GetEnd();
+
+                if ( nStart > nInvalidEnd )
+                {
+                    if ( ( ( nStart-nInvalidDiff ) == aSaveLine.GetStart() ) &&
+                            ( ( nEnd-nInvalidDiff ) == aSaveLine.GetEnd() ) )
+                    {
+                        pLine->SetValid();
+                        if ( bQuickFormat )
+                        {
+                            pTEParaPortion->CorrectValuesBehindLastFormattedLine( nLine );
+                            break;
+                        }
+                    }
+                }
+                else if ( bQuickFormat && ( nEnd > nInvalidEnd) )
+                {
+                    // If the invalid line ends such that the next line starts
+                    // at the 'same' position as before (no change in line breaks),
+                    // the text width does not have to be recalculated.
+                    if ( nEnd == ( aSaveLine.GetEnd() + nInvalidDiff ) )
+                    {
+                        pTEParaPortion->CorrectValuesBehindLastFormattedLine( nLine );
+                        break;
+                    }
+                }
+            }
+        }
+
+        nIndex = pLine->GetEnd();   // next line Start = previous line End
+                                    // because nEnd is past the last char!
+
+        const std::size_t nEndPortion = pLine->GetEndPortion();
+
+        // next line or new line
+        pLine = nullptr;
+        if ( nLine < pTEParaPortion->GetLines().size()-1 )
+            pLine = &( pTEParaPortion->GetLines()[ ++nLine ] );
+        if ( pLine && ( nIndex >= pNode->GetText().getLength() ) )
+        {
+            nDelFromLine = nLine;
+            break;
+        }
+        if ( !pLine )
+        {
+            if ( nIndex < pNode->GetText().getLength() )
+            {
+                ++nLine;
+                pTEParaPortion->GetLines().insert( pTEParaPortion->GetLines().begin() + nLine, TextLine() );
+                pLine = &pTEParaPortion->GetLines()[nLine];
+            }
+            else
+            {
+                break;
+            }
+        }
+        aSaveLine = *pLine;
+        pLine->SetStart( nIndex );
+        pLine->SetEnd( nIndex );
+        pLine->SetStartPortion( nEndPortion+1 );
+        pLine->SetEndPortion( nEndPortion+1 );
+
+    }   // while ( Index < Len )
+
+    if (nDelFromLine != TETextPortionList::npos)
+    {
+        pTEParaPortion->GetLines().erase( pTEParaPortion->GetLines().begin() + nDelFromLine,
+                                          pTEParaPortion->GetLines().end() );
+    }
+
+    SAL_WARN_IF( pTEParaPortion->GetLines().empty(), "vcl", "CreateLines: No Line!" );
+
+    pTEParaPortion->SetValid();
+
+    return nOldLineCount != pTEParaPortion->GetLines().size();
+}
+
+OUString TextEngine::GetWord( const TextPaM& rCursorPos, TextPaM* pStartOfWord, TextPaM* pEndOfWord )
+{
+    OUString aWord;
+    if ( rCursorPos.GetPara() < mpDoc->GetNodes().size() )
+    {
+        TextSelection aSel( rCursorPos );
+        TextNode* pNode = mpDoc->GetNodes()[ rCursorPos.GetPara() ].get();
+        uno::Reference < i18n::XBreakIterator > xBI = GetBreakIterator();
+        i18n::Boundary aBoundary = xBI->getWordBoundary( pNode->GetText(), rCursorPos.GetIndex(), GetLocale(), i18n::WordType::ANYWORD_IGNOREWHITESPACES, true );
+        // tdf#57879 - expand selection to the left to include connector punctuations and search for additional word boundaries
+        if (aBoundary.startPos > 0 && aBoundary.startPos < pNode->GetText().getLength() && u_charType(pNode->GetText()[aBoundary.startPos]) == U_CONNECTOR_PUNCTUATION)
+        {
+            aBoundary.startPos = xBI->getWordBoundary(pNode->GetText(), aBoundary.startPos - 1,
+                GetLocale(), css::i18n::WordType::ANYWORD_IGNOREWHITESPACES, true).startPos;
+        }
+        while (aBoundary.startPos > 0 && u_charType(pNode->GetText()[aBoundary.startPos - 1]) == U_CONNECTOR_PUNCTUATION)
+        {
+            aBoundary.startPos = std::min(aBoundary.startPos,
+                xBI->getWordBoundary( pNode->GetText(), aBoundary.startPos - 2,
+                    GetLocale(), css::i18n::WordType::ANYWORD_IGNOREWHITESPACES, true).startPos);
+        }
+        // tdf#57879 - expand selection to the right to include connector punctuations and search for additional word boundaries
+        if (aBoundary.endPos > 0 && aBoundary.endPos < pNode->GetText().getLength() && u_charType(pNode->GetText()[aBoundary.endPos - 1]) == U_CONNECTOR_PUNCTUATION)
+        {
+            aBoundary.endPos = xBI->getWordBoundary(pNode->GetText(), aBoundary.endPos,
+                GetLocale(), css::i18n::WordType::ANYWORD_IGNOREWHITESPACES, true).endPos;
+        }
+        while (aBoundary.endPos < pNode->GetText().getLength() && u_charType(pNode->GetText()[aBoundary.endPos]) == U_CONNECTOR_PUNCTUATION)
+        {
+            aBoundary.endPos = xBI->getWordBoundary(pNode->GetText(), aBoundary.endPos + 1,
+                GetLocale(), css::i18n::WordType::ANYWORD_IGNOREWHITESPACES, true).endPos;
+        }
+        aSel.GetStart().GetIndex() = aBoundary.startPos;
+        aSel.GetEnd().GetIndex() = aBoundary.endPos;
+        aWord = pNode->GetText().copy( aSel.GetStart().GetIndex(), aSel.GetEnd().GetIndex() - aSel.GetStart().GetIndex() );
+        if ( pStartOfWord )
+            *pStartOfWord = aSel.GetStart();
+        if (pEndOfWord)
+            *pEndOfWord = aSel.GetEnd();
+    }
+    return aWord;
+}
+
+bool TextEngine::Read( SvStream& rInput, const TextSelection* pSel )
+{
+    const bool bUpdate = GetUpdateMode();
+    SetUpdateMode( false );
+
+    UndoActionStart();
+    TextSelection aSel;
+    if ( pSel )
+        aSel = *pSel;
+    else
+    {
+        const sal_uInt32 nParas = static_cast<sal_uInt32>(mpDoc->GetNodes().size());
+        TextNode* pNode = mpDoc->GetNodes()[ nParas - 1 ].get();
+        aSel = TextPaM( nParas-1 , pNode->GetText().getLength() );
+    }
+
+    if ( aSel.HasRange() )
+        aSel = ImpDeleteText( aSel );
+
+    OStringBuffer aLine;
+    bool bDone = rInput.ReadLine( aLine );
+    OUString aTmpStr(OStringToOUString(aLine, rInput.GetStreamCharSet()));
+    while ( bDone )
+    {
+        aSel = ImpInsertText( aSel, aTmpStr );
+        bDone = rInput.ReadLine( aLine );
+        aTmpStr = OStringToOUString(aLine, rInput.GetStreamCharSet());
+        if ( bDone )
+            aSel = ImpInsertParaBreak( aSel.GetEnd() );
+    }
+
+    UndoActionEnd();
+
+    const TextSelection aNewSel( aSel.GetEnd(), aSel.GetEnd() );
+
+    // so that FormatAndUpdate does not access the invalid selection
+    if ( GetActiveView() )
+        GetActiveView()->ImpSetSelection( aNewSel );
+
+    SetUpdateMode( bUpdate );
+    FormatAndUpdate( GetActiveView() );
+
+    return rInput.GetError() == ERRCODE_NONE;
+}
+
+void TextEngine::Write( SvStream& rOutput )
+{
+    TextSelection aSel;
+    const sal_uInt32 nParas = static_cast<sal_uInt32>(mpDoc->GetNodes().size());
+    TextNode* pSelNode = mpDoc->GetNodes()[ nParas - 1 ].get();
+    aSel.GetStart() = TextPaM( 0, 0 );
+    aSel.GetEnd() = TextPaM( nParas-1, pSelNode->GetText().getLength() );
+
+    for ( sal_uInt32 nPara = aSel.GetStart().GetPara(); nPara <= aSel.GetEnd().GetPara(); ++nPara  )
+    {
+        TextNode* pNode = mpDoc->GetNodes()[ nPara ].get();
+
+        const sal_Int32 nStartPos = nPara == aSel.GetStart().GetPara()
+            ? aSel.GetStart().GetIndex() : 0;
+        const sal_Int32 nEndPos = nPara == aSel.GetEnd().GetPara()
+            ? aSel.GetEnd().GetIndex() : pNode->GetText().getLength();
+
+        const OUString aText = pNode->GetText().copy( nStartPos, nEndPos-nStartPos );
+        rOutput.WriteLine(OUStringToOString(aText, rOutput.GetStreamCharSet()));
+    }
+}
+
+void TextEngine::RemoveAttribs( sal_uInt32 nPara )
+{
+    if ( nPara >= mpDoc->GetNodes().size() )
+        return;
+
+    TextNode* pNode = mpDoc->GetNodes()[ nPara ].get();
+    if ( pNode->GetCharAttribs().Count() )
+    {
+        pNode->GetCharAttribs().Clear();
+
+        TEParaPortion* pTEParaPortion = mpTEParaPortions->GetObject( nPara );
+        pTEParaPortion->MarkSelectionInvalid( 0 );
+
+        mbFormatted = false;
+
+        IdleFormatAndUpdate( nullptr, 0xFFFF );
+    }
+}
+
+void TextEngine::SetAttrib( const TextAttrib& rAttr, sal_uInt32 nPara, sal_Int32 nStart, sal_Int32 nEnd )
+{
+
+    // For now do not check if Attributes overlap!
+    // This function is for TextEditors that want to _quickly_ generate the Syntax-Highlight
+
+    // As TextEngine is currently intended only for TextEditors, there is no Undo for Attributes!
+
+    if ( nPara >= mpDoc->GetNodes().size() )
+        return;
+
+    TextNode* pNode = mpDoc->GetNodes()[ nPara ].get();
+    TEParaPortion* pTEParaPortion = mpTEParaPortions->GetObject( nPara );
+
+    const sal_Int32 nMax = pNode->GetText().getLength();
+    if ( nStart > nMax )
+        nStart = nMax;
+    if ( nEnd > nMax )
+        nEnd = nMax;
+
+    pNode->GetCharAttribs().InsertAttrib( std::make_unique<TextCharAttrib>( rAttr, nStart, nEnd ) );
+    pTEParaPortion->MarkSelectionInvalid( nStart );
+
+    mbFormatted = false;
+    IdleFormatAndUpdate( nullptr, 0xFFFF );
+}
+
+void TextEngine::SetTextAlign( TxtAlign eAlign )
+{
+    if ( eAlign != meAlign )
+    {
+        meAlign = eAlign;
+        FormatFullDoc();
+        UpdateViews();
+    }
+}
+
+void TextEngine::ValidateSelection( TextSelection& rSel ) const
+{
+    ValidatePaM( rSel.GetStart() );
+    ValidatePaM( rSel.GetEnd() );
+}
+
+void TextEngine::ValidatePaM( TextPaM& rPaM ) const
+{
+    const sal_uInt32 nParas = static_cast<sal_uInt32>(mpDoc->GetNodes().size());
+    if ( rPaM.GetPara() >= nParas )
+    {
+        rPaM.GetPara() = nParas ? nParas-1 : 0;
+        rPaM.GetIndex() = TEXT_INDEX_ALL;
+    }
+
+    const sal_Int32 nMaxIndex = GetTextLen( rPaM.GetPara() );
+    if ( rPaM.GetIndex() > nMaxIndex )
+        rPaM.GetIndex() = nMaxIndex;
+}
+
+// adjust State & Selection
+
+void TextEngine::ImpParagraphInserted( sal_uInt32 nPara )
+{
+    // No adjustment needed for the active View;
+    // but for all passive Views the Selection needs adjusting.
+    if ( mpViews->size() > 1 )
+    {
+        for ( auto nView = mpViews->size(); nView; )
+        {
+            TextView* pView = (*mpViews)[ --nView ];
+            if ( pView != GetActiveView() )
+            {
+                for ( int n = 0; n <= 1; n++ )
+                {
+                    TextPaM& rPaM = n ? pView->GetSelection().GetStart(): pView->GetSelection().GetEnd();
+                    if ( rPaM.GetPara() >= nPara )
+                        rPaM.GetPara()++;
+                }
+            }
+        }
+    }
+    Broadcast( TextHint( SfxHintId::TextParaInserted, nPara ) );
+}
+
+void TextEngine::ImpParagraphRemoved( sal_uInt32 nPara )
+{
+    if ( mpViews->size() > 1 )
+    {
+        for ( auto nView = mpViews->size(); nView; )
+        {
+            TextView* pView = (*mpViews)[ --nView ];
+            if ( pView != GetActiveView() )
+            {
+                const sal_uInt32 nParas = static_cast<sal_uInt32>(mpDoc->GetNodes().size());
+                for ( int n = 0; n <= 1; n++ )
+                {
+                    TextPaM& rPaM = n ? pView->GetSelection().GetStart(): pView->GetSelection().GetEnd();
+                    if ( rPaM.GetPara() > nPara )
+                        rPaM.GetPara()--;
+                    else if ( rPaM.GetPara() == nPara )
+                    {
+                        rPaM.GetIndex() = 0;
+                        if ( rPaM.GetPara() >= nParas )
+                            rPaM.GetPara()--;
+                    }
+                }
+            }
+        }
+    }
+    Broadcast( TextHint( SfxHintId::TextParaRemoved, nPara ) );
+}
+
+void TextEngine::ImpCharsRemoved( sal_uInt32 nPara, sal_Int32 nPos, sal_Int32 nChars )
+{
+    if ( mpViews->size() > 1 )
+    {
+        for ( auto nView = mpViews->size(); nView; )
+        {
+            TextView* pView = (*mpViews)[ --nView ];
+            if ( pView != GetActiveView() )
+            {
+                const sal_Int32 nEnd = nPos + nChars;
+                for ( int n = 0; n <= 1; n++ )
+                {
+                    TextPaM& rPaM = n ? pView->GetSelection().GetStart(): pView->GetSelection().GetEnd();
+                    if ( rPaM.GetPara() == nPara )
+                    {
+                        if ( rPaM.GetIndex() > nEnd )
+                            rPaM.GetIndex() = rPaM.GetIndex() - nChars;
+                        else if ( rPaM.GetIndex() > nPos )
+                            rPaM.GetIndex() = nPos;
+                    }
+                }
+            }
+        }
+    }
+    Broadcast( TextHint( SfxHintId::TextParaContentChanged, nPara ) );
+}
+
+void TextEngine::ImpCharsInserted( sal_uInt32 nPara, sal_Int32 nPos, sal_Int32 nChars )
+{
+    if ( mpViews->size() > 1 )
+    {
+        for ( auto nView = mpViews->size(); nView; )
+        {
+            TextView* pView = (*mpViews)[ --nView ];
+            if ( pView != GetActiveView() )
+            {
+                for ( int n = 0; n <= 1; n++ )
+                {
+                    TextPaM& rPaM = n ? pView->GetSelection().GetStart(): pView->GetSelection().GetEnd();
+                    if ( rPaM.GetPara() == nPara )
+                    {
+                        if ( rPaM.GetIndex() >= nPos )
+                            rPaM.GetIndex() += nChars;
+                    }
+                }
+            }
+        }
+    }
+    Broadcast( TextHint( SfxHintId::TextParaContentChanged, nPara ) );
+}
+
+void TextEngine::Draw( OutputDevice* pDev, const Point& rPos )
+{
+    ImpPaint( pDev, rPos, nullptr );
+}
+
+void TextEngine::SetLeftMargin( sal_uInt16 n )
+{
+    mpDoc->SetLeftMargin( n );
+}
+
+uno::Reference< i18n::XBreakIterator > const & TextEngine::GetBreakIterator()
+{
+    if ( !mxBreakIterator.is() )
+        mxBreakIterator = vcl::unohelper::CreateBreakIterator();
+    SAL_WARN_IF( !mxBreakIterator.is(), "vcl", "BreakIterator: Failed to create!" );
+    return mxBreakIterator;
+}
+
+void TextEngine::SetLocale( const css::lang::Locale& rLocale )
+{
+    maLocale = rLocale;
+    mpLocaleDataWrapper.reset();
+}
+
+css::lang::Locale const & TextEngine::GetLocale()
+{
+    if ( maLocale.Language.isEmpty() )
+    {
+        maLocale = Application::GetSettings().GetUILanguageTag().getLocale();   // TODO: why UI locale?
+    }
+    return maLocale;
+}
+
+LocaleDataWrapper* TextEngine::ImpGetLocaleDataWrapper()
+{
+    if ( !mpLocaleDataWrapper )
+        mpLocaleDataWrapper.reset( new LocaleDataWrapper( LanguageTag( GetLocale()) ) );
+
+    return mpLocaleDataWrapper.get();
+}
+
+void TextEngine::SetRightToLeft( bool bR2L )
+{
+    if ( mbRightToLeft != bR2L )
+    {
+        mbRightToLeft = bR2L;
+        meAlign = bR2L ? TxtAlign::Right : TxtAlign::Left;
+        FormatFullDoc();
+        UpdateViews();
+    }
+}
+
+void TextEngine::ImpInitWritingDirections( sal_uInt32 nPara )
+{
+    TEParaPortion* pParaPortion = mpTEParaPortions->GetObject( nPara );
+    std::vector<TEWritingDirectionInfo>& rInfos = pParaPortion->GetWritingDirectionInfos();
+    rInfos.clear();
+
+    if ( !pParaPortion->GetNode()->GetText().isEmpty() )
+    {
+        const UBiDiLevel nBidiLevel = IsRightToLeft() ? 1 /*RTL*/ : 0 /*LTR*/;
+        OUString aText( pParaPortion->GetNode()->GetText() );
+
+        // Bidi functions from icu 2.0
+
+        UErrorCode nError = U_ZERO_ERROR;
+        UBiDi* pBidi = ubidi_openSized( aText.getLength(), 0, &nError );
+        nError = U_ZERO_ERROR;
+
+        ubidi_setPara( pBidi, reinterpret_cast<const UChar *>(aText.getStr()), aText.getLength(), nBidiLevel, nullptr, &nError );
+        nError = U_ZERO_ERROR;
+
+        tools::Long nCount = ubidi_countRuns( pBidi, &nError );
+
+        int32_t nStart = 0;
+        int32_t nEnd;
+        UBiDiLevel nCurrDir;
+
+        for ( tools::Long nIdx = 0; nIdx < nCount; ++nIdx )
+        {
+            ubidi_getLogicalRun( pBidi, nStart, &nEnd, &nCurrDir );
+            // bit 0 of nCurrDir indicates direction
+            rInfos.emplace_back( /*bLeftToRight*/ nCurrDir % 2 == 0, nStart, nEnd );
+            nStart = nEnd;
+        }
+
+        ubidi_close( pBidi );
+    }
+
+    // No infos mean no CTL and default dir is L2R...
+    if ( rInfos.empty() )
+        rInfos.emplace_back( 0, 0, pParaPortion->GetNode()->GetText().getLength() );
+
+}
+
+bool TextEngine::ImpGetRightToLeft( sal_uInt32 nPara, sal_Int32 nPos )
+{
+    bool bRightToLeft = false;
+
+    TextNode* pNode = mpDoc->GetNodes()[ nPara ].get();
+    if ( pNode && !pNode->GetText().isEmpty() )
+    {
+        TEParaPortion* pParaPortion = mpTEParaPortions->GetObject( nPara );
+        if ( pParaPortion->GetWritingDirectionInfos().empty() )
+            ImpInitWritingDirections( nPara );
+
+        std::vector<TEWritingDirectionInfo>& rDirInfos = pParaPortion->GetWritingDirectionInfos();
+        for ( const auto& rWritingDirectionInfo : rDirInfos )
+        {
+            if ( rWritingDirectionInfo.nStartPos <= nPos && rWritingDirectionInfo.nEndPos >= nPos )
+            {
+                bRightToLeft = !rWritingDirectionInfo.bLeftToRight;
+                break;
+            }
+        }
+    }
+    return bRightToLeft;
+}
+
+tools::Long TextEngine::ImpGetPortionXOffset( sal_uInt32 nPara, TextLine const * pLine, std::size_t nTextPortion )
+{
+    tools::Long nX = pLine->GetStartX();
+
+    TEParaPortion* pParaPortion = mpTEParaPortions->GetObject( nPara );
+
+    for ( std::size_t i = pLine->GetStartPortion(); i < nTextPortion; i++ )
+    {
+        TETextPortion& rPortion = pParaPortion->GetTextPortions()[ i ];
+        nX += rPortion.GetWidth();
+    }
+
+    TETextPortion& rDestPortion = pParaPortion->GetTextPortions()[ nTextPortion ];
+    if ( rDestPortion.GetKind() != PORTIONKIND_TAB )
+    {
+        if ( !IsRightToLeft() && rDestPortion.IsRightToLeft() )
+        {
+            // Portions behind must be added, visual before this portion
+            std::size_t nTmpPortion = nTextPortion+1;
+            while ( nTmpPortion <= pLine->GetEndPortion() )
+            {
+                TETextPortion& rNextTextPortion = pParaPortion->GetTextPortions()[ nTmpPortion ];
+                if ( rNextTextPortion.IsRightToLeft() && ( rNextTextPortion.GetKind() != PORTIONKIND_TAB ) )
+                    nX += rNextTextPortion.GetWidth();
+                else
+                    break;
+                nTmpPortion++;
+            }
+            // Portions before must be removed, visual behind this portion
+            nTmpPortion = nTextPortion;
+            while ( nTmpPortion > pLine->GetStartPortion() )
+            {
+                --nTmpPortion;
+                TETextPortion& rPrevTextPortion = pParaPortion->GetTextPortions()[ nTmpPortion ];
+                if ( rPrevTextPortion.IsRightToLeft() && ( rPrevTextPortion.GetKind() != PORTIONKIND_TAB ) )
+                    nX -= rPrevTextPortion.GetWidth();
+                else
+                    break;
+            }
+        }
+        else if ( IsRightToLeft() && !rDestPortion.IsRightToLeft() )
+        {
+            // Portions behind must be removed, visual behind this portion
+            std::size_t nTmpPortion = nTextPortion+1;
+            while ( nTmpPortion <= pLine->GetEndPortion() )
+            {
+                TETextPortion& rNextTextPortion = pParaPortion->GetTextPortions()[ nTmpPortion ];
+                if ( !rNextTextPortion.IsRightToLeft() && ( rNextTextPortion.GetKind() != PORTIONKIND_TAB ) )
+                    nX += rNextTextPortion.GetWidth();
+                else
+                    break;
+                nTmpPortion++;
+            }
+            // Portions before must be added, visual before this portion
+            nTmpPortion = nTextPortion;
+            while ( nTmpPortion > pLine->GetStartPortion() )
+            {
+                --nTmpPortion;
+                TETextPortion& rPrevTextPortion = pParaPortion->GetTextPortions()[ nTmpPortion ];
+                if ( !rPrevTextPortion.IsRightToLeft() && ( rPrevTextPortion.GetKind() != PORTIONKIND_TAB ) )
+                    nX -= rPrevTextPortion.GetWidth();
+                else
+                    break;
+            }
+        }
+    }
+
+    return nX;
+}
+
+void TextEngine::ImpInitLayoutMode( OutputDevice* pOutDev )
+{
+    vcl::text::ComplexTextLayoutFlags nLayoutMode = pOutDev->GetLayoutMode();
+
+    nLayoutMode &= ~vcl::text::ComplexTextLayoutFlags(vcl::text::ComplexTextLayoutFlags::BiDiRtl | vcl::text::ComplexTextLayoutFlags::BiDiStrong );
+
+    pOutDev->SetLayoutMode( nLayoutMode );
+}
+
+TxtAlign TextEngine::ImpGetAlign() const
+{
+    TxtAlign eAlign = meAlign;
+    if ( IsRightToLeft() )
+    {
+        if ( eAlign == TxtAlign::Left )
+            eAlign = TxtAlign::Right;
+        else if ( eAlign == TxtAlign::Right )
+            eAlign = TxtAlign::Left;
+    }
+    return eAlign;
+}
+
+tools::Long TextEngine::ImpGetOutputOffset( sal_uInt32 nPara, TextLine* pLine, sal_Int32 nIndex, sal_Int32 nIndex2 )
+{
+    TEParaPortion* pPortion = mpTEParaPortions->GetObject( nPara );
+
+    sal_Int32 nPortionStart {0};
+    const std::size_t nPortion = pPortion->GetTextPortions().FindPortion( nIndex, nPortionStart, true );
+
+    TETextPortion& rTextPortion = pPortion->GetTextPortions()[ nPortion ];
+
+    tools::Long nX;
+
+    if ( ( nIndex == nPortionStart ) && ( nIndex == nIndex2 )  )
+    {
+        // Output of full portion, so we need portion x offset.
+        // Use ImpGetPortionXOffset, because GetXPos may deliver left or right position from portion, depending on R2L, L2R
+        nX = ImpGetPortionXOffset( nPara, pLine, nPortion );
+        if ( IsRightToLeft() )
+        {
+            nX = -nX - rTextPortion.GetWidth();
+        }
+    }
+    else
+    {
+        nX = ImpGetXPos( nPara, pLine, nIndex, nIndex == nPortionStart );
+        if ( nIndex2 != nIndex )
+        {
+            const tools::Long nX2 = ImpGetXPos( nPara, pLine, nIndex2 );
+            if ( ( !IsRightToLeft() && ( nX2 < nX ) ) ||
+                 ( IsRightToLeft() && ( nX2 > nX ) ) )
+            {
+                nX = nX2;
+            }
+        }
+        if ( IsRightToLeft() )
+        {
+            nX = -nX;
+        }
+    }
+
+    return nX;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/edit/textund2.hxx b/vcl/source/edit/textund2.hxx
new file mode 100644
index 000000000..729a130ad
--- /dev/null
+++ b/vcl/source/edit/textund2.hxx
@@ -0,0 +1,108 @@
+/* -*- 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 .
+ */
+#ifndef INCLUDED_VCL_SOURCE_EDIT_TEXTUND2_HXX
+#define INCLUDED_VCL_SOURCE_EDIT_TEXTUND2_HXX
+
+#include "textundo.hxx"
+#include <vcl/textdata.hxx>
+
+class TextUndoDelPara : public TextUndo
+{
+private:
+    bool            mbDelObject;
+    sal_uInt32      mnPara;
+    TextNode*       mpNode; // points at the valid not-destroyed object
+
+public:
+                    TextUndoDelPara( TextEngine* pTextEngine, TextNode* pNode, sal_uInt32 nPara );
+                    virtual ~TextUndoDelPara() override;
+
+    virtual void    Undo() override;
+    virtual void    Redo() override;
+
+    virtual OUString GetComment () const override;
+};
+
+class TextUndoConnectParas : public TextUndo
+{
+private:
+    sal_uInt32          mnPara;
+    sal_Int32           mnSepPos;
+
+public:
+                    TextUndoConnectParas( TextEngine* pTextEngine, sal_uInt32 nPara, sal_Int32 nSepPos );
+                    virtual ~TextUndoConnectParas() override;
+
+    virtual void    Undo() override;
+    virtual void    Redo() override;
+
+    virtual OUString GetComment () const override;
+};
+
+class TextUndoSplitPara : public TextUndo
+{
+private:
+    sal_uInt32          mnPara;
+    sal_Int32           mnSepPos;
+
+public:
+                    TextUndoSplitPara( TextEngine* pTextEngine, sal_uInt32 nPara, sal_Int32 nSepPos );
+                    virtual ~TextUndoSplitPara() override;
+
+    virtual void    Undo() override;
+    virtual void    Redo() override;
+
+    virtual OUString GetComment () const override;
+};
+
+class TextUndoInsertChars : public TextUndo
+{
+private:
+    TextPaM         maTextPaM;
+    OUString        maText;
+
+public:
+                    TextUndoInsertChars( TextEngine* pTextEngine, const TextPaM& rTextPaM, const OUString& rStr );
+
+    virtual void    Undo() override;
+    virtual void    Redo() override;
+
+    virtual bool    Merge( SfxUndoAction *pNextAction ) override;
+
+    virtual OUString GetComment () const override;
+};
+
+class TextUndoRemoveChars : public TextUndo
+{
+private:
+    TextPaM         maTextPaM;
+    OUString        maText;
+
+public:
+                    TextUndoRemoveChars( TextEngine* pTextEngine, const TextPaM& rTextPaM, const OUString& rStr );
+
+    virtual void    Undo() override;
+    virtual void    Redo() override;
+
+    virtual OUString GetComment () const override;
+};
+
+#endif // INCLUDED_VCL_SOURCE_EDIT_TEXTUND2_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/edit/textundo.cxx b/vcl/source/edit/textundo.cxx
new file mode 100644
index 000000000..89dd0c50f
--- /dev/null
+++ b/vcl/source/edit/textundo.cxx
@@ -0,0 +1,329 @@
+/* -*- 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 "textundo.hxx"
+#include "textund2.hxx"
+#include <strings.hrc>
+
+#include <sal/log.hxx>
+#include <vcl/texteng.hxx>
+#include <vcl/textview.hxx>
+#include <vcl/textdata.hxx>
+#include "textdoc.hxx"
+#include "textdat2.hxx"
+#include <svdata.hxx>
+
+namespace
+{
+
+// Shorten() -- inserts ellipsis (...) in the middle of a long text
+void Shorten (OUString& rString)
+{
+    auto const nLen = rString.getLength();
+    if (nLen <= 48)
+        return;
+
+    // If possible, we don't break a word, hence first we look for a space.
+    // Space before the ellipsis:
+    auto iFirst = rString.lastIndexOf(' ', 32);
+    if (iFirst == -1 || iFirst < 16)
+        iFirst = 24; // not possible
+    // Space after the ellipsis:
+    auto iLast = rString.indexOf(' ', nLen - 16);
+    if (iLast == -1 || iLast > nLen - 4)
+        iLast = nLen - 8; // not possible
+    // finally:
+    rString =
+        OUString::Concat(rString.subView(0, iFirst + 1)) +
+        "..." +
+        rString.subView(iLast);
+}
+
+} // namespace
+
+TextUndoManager::TextUndoManager( TextEngine* p )
+{
+    mpTextEngine = p;
+}
+
+TextUndoManager::~TextUndoManager()
+{
+}
+
+bool TextUndoManager::Undo()
+{
+    if ( GetUndoActionCount() == 0 )
+        return false;
+
+    UndoRedoStart();
+
+    mpTextEngine->SetIsInUndo( true );
+    bool bDone = SfxUndoManager::Undo();
+    mpTextEngine->SetIsInUndo( false );
+
+    UndoRedoEnd();
+
+    return bDone;
+}
+
+bool TextUndoManager::Redo()
+{
+    if ( GetRedoActionCount() == 0 )
+        return false;
+
+    UndoRedoStart();
+
+    mpTextEngine->SetIsInUndo( true );
+    bool bDone = SfxUndoManager::Redo();
+    mpTextEngine->SetIsInUndo( false );
+
+    UndoRedoEnd();
+
+    return bDone;
+}
+
+void TextUndoManager::UndoRedoStart()
+{
+    SAL_WARN_IF( !GetView(), "vcl", "Undo/Redo: Active View?" );
+}
+
+void TextUndoManager::UndoRedoEnd()
+{
+    if ( GetView() )
+    {
+        TextSelection aNewSel( GetView()->GetSelection() );
+        aNewSel.GetStart() = aNewSel.GetEnd();
+        GetView()->ImpSetSelection( aNewSel );
+    }
+
+    mpTextEngine->FormatAndUpdate( GetView() );
+}
+
+TextUndo::TextUndo( TextEngine* p )
+{
+    mpTextEngine = p;
+}
+
+TextUndo::~TextUndo()
+{
+}
+
+OUString TextUndo::GetComment() const
+{
+    return OUString();
+}
+
+void TextUndo::SetSelection( const TextSelection& rSel )
+{
+    if ( GetView() )
+        GetView()->ImpSetSelection( rSel );
+}
+
+TextUndoDelPara::TextUndoDelPara( TextEngine* pTextEngine, TextNode* pNode, sal_uInt32 nPara )
+    : TextUndo( pTextEngine )
+    , mbDelObject( true)
+    , mnPara( nPara )
+    , mpNode( pNode )
+{
+}
+
+TextUndoDelPara::~TextUndoDelPara()
+{
+    if ( mbDelObject )
+        delete mpNode;
+}
+
+void TextUndoDelPara::Undo()
+{
+    GetTextEngine()->InsertContent( std::unique_ptr<TextNode>(mpNode), mnPara );
+    mbDelObject = false;    // belongs again to the engine
+
+    if ( GetView() )
+    {
+        TextSelection aSel( TextPaM( mnPara, 0 ), TextPaM( mnPara, mpNode->GetText().getLength() ) );
+        SetSelection( aSel );
+    }
+}
+
+void TextUndoDelPara::Redo()
+{
+    auto & rDocNodes = GetDoc()->GetNodes();
+    // pNode is not valid anymore in case an Undo joined paragraphs
+    mpNode = rDocNodes[ mnPara ].get();
+
+    GetTEParaPortions()->Remove( mnPara );
+
+    // do not delete Node because of Undo!
+    auto it = ::std::find_if( rDocNodes.begin(), rDocNodes.end(),
+                              [&] (std::unique_ptr<TextNode> const & p) { return p.get() == mpNode; } );
+    assert(it != rDocNodes.end());
+    it->release();
+    GetDoc()->GetNodes().erase( it );
+
+    GetTextEngine()->ImpParagraphRemoved( mnPara );
+
+    mbDelObject = true; // belongs again to the Undo
+
+    const sal_uInt32 nParas = static_cast<sal_uInt32>(GetDoc()->GetNodes().size());
+    const sal_uInt32 n = mnPara < nParas ? mnPara : nParas-1;
+    TextNode* pN = GetDoc()->GetNodes()[ n ].get();
+    TextPaM aPaM( n, pN->GetText().getLength() );
+    SetSelection( aPaM );
+}
+
+OUString TextUndoDelPara::GetComment () const
+{
+    return VclResId(STR_TEXTUNDO_DELPARA);
+}
+
+TextUndoConnectParas::TextUndoConnectParas( TextEngine* pTextEngine, sal_uInt32 nPara, sal_Int32 nPos )
+    : TextUndo( pTextEngine )
+    , mnPara( nPara )
+    , mnSepPos( nPos )
+{
+}
+
+TextUndoConnectParas::~TextUndoConnectParas()
+{
+}
+
+void TextUndoConnectParas::Undo()
+{
+    TextPaM aPaM = GetTextEngine()->SplitContent( mnPara, mnSepPos );
+    SetSelection( aPaM );
+}
+
+void TextUndoConnectParas::Redo()
+{
+    TextPaM aPaM = GetTextEngine()->ConnectContents( mnPara );
+    SetSelection( aPaM );
+}
+
+OUString TextUndoConnectParas::GetComment () const
+{
+    return VclResId(STR_TEXTUNDO_CONNECTPARAS);
+}
+
+TextUndoSplitPara::TextUndoSplitPara( TextEngine* pTextEngine, sal_uInt32 nPara, sal_Int32 nPos )
+    : TextUndo( pTextEngine )
+    , mnPara( nPara )
+    , mnSepPos ( nPos )
+{
+}
+
+TextUndoSplitPara::~TextUndoSplitPara()
+{
+}
+
+void TextUndoSplitPara::Undo()
+{
+    TextPaM aPaM = GetTextEngine()->ConnectContents( mnPara );
+    SetSelection( aPaM );
+}
+
+void TextUndoSplitPara::Redo()
+{
+    TextPaM aPaM = GetTextEngine()->SplitContent( mnPara, mnSepPos );
+    SetSelection( aPaM );
+}
+
+OUString TextUndoSplitPara::GetComment () const
+{
+    return VclResId(STR_TEXTUNDO_SPLITPARA);
+}
+
+TextUndoInsertChars::TextUndoInsertChars( TextEngine* pTextEngine, const TextPaM& rTextPaM, const OUString& rStr )
+                    : TextUndo( pTextEngine ),
+                        maTextPaM( rTextPaM ), maText( rStr )
+{
+}
+
+void TextUndoInsertChars::Undo()
+{
+    TextSelection aSel( maTextPaM, maTextPaM );
+    aSel.GetEnd().GetIndex() += maText.getLength();
+    TextPaM aPaM = GetTextEngine()->ImpDeleteText( aSel );
+    SetSelection( aPaM );
+}
+
+void TextUndoInsertChars::Redo()
+{
+    TextSelection aSel( maTextPaM, maTextPaM );
+    GetTextEngine()->ImpInsertText( aSel, maText );
+    TextPaM aNewPaM( maTextPaM );
+    aNewPaM.GetIndex() += maText.getLength();
+    SetSelection( TextSelection( aSel.GetStart(), aNewPaM ) );
+}
+
+bool TextUndoInsertChars::Merge( SfxUndoAction* pNextAction )
+{
+    TextUndoInsertChars* pNext = dynamic_cast<TextUndoInsertChars*>(pNextAction);
+    if ( !pNext )
+        return false;
+
+    if ( maTextPaM.GetPara() != pNext->maTextPaM.GetPara() )
+        return false;
+
+    if ( ( maTextPaM.GetIndex() + maText.getLength() ) == pNext->maTextPaM.GetIndex() )
+    {
+        maText += pNext->maText;
+        return true;
+    }
+    return false;
+}
+
+OUString TextUndoInsertChars::GetComment () const
+{
+    // multiple lines?
+    OUString sText(maText);
+    Shorten(sText);
+    return VclResId(STR_TEXTUNDO_INSERTCHARS).replaceAll("$1", sText);
+}
+
+TextUndoRemoveChars::TextUndoRemoveChars( TextEngine* pTextEngine, const TextPaM& rTextPaM, const OUString& rStr )
+                    : TextUndo( pTextEngine ),
+                        maTextPaM( rTextPaM ), maText( rStr )
+{
+}
+
+void TextUndoRemoveChars::Undo()
+{
+    TextSelection aSel( maTextPaM, maTextPaM );
+    GetTextEngine()->ImpInsertText( aSel, maText );
+    aSel.GetEnd().GetIndex() += maText.getLength();
+    SetSelection( aSel );
+}
+
+void TextUndoRemoveChars::Redo()
+{
+    TextSelection aSel( maTextPaM, maTextPaM );
+    aSel.GetEnd().GetIndex() += maText.getLength();
+    TextPaM aPaM = GetTextEngine()->ImpDeleteText( aSel );
+    SetSelection( aPaM );
+}
+
+OUString TextUndoRemoveChars::GetComment () const
+{
+    // multiple lines?
+    OUString sText(maText);
+    Shorten(sText);
+    return VclResId(STR_TEXTUNDO_REMOVECHARS).replaceAll("$1", sText);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/edit/textundo.hxx b/vcl/source/edit/textundo.hxx
new file mode 100644
index 000000000..0ec4a9aba
--- /dev/null
+++ b/vcl/source/edit/textundo.hxx
@@ -0,0 +1,80 @@
+/* -*- 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 .
+ */
+#ifndef INCLUDED_VCL_SOURCE_EDIT_TEXTUNDO_HXX
+#define INCLUDED_VCL_SOURCE_EDIT_TEXTUNDO_HXX
+
+#include <svl/undo.hxx>
+#include <vcl/texteng.hxx>
+
+class TextEngine;
+class TextView;
+class TextSelection;
+class TextDoc;
+class TEParaPortions;
+
+class TextUndoManager : public SfxUndoManager
+{
+    TextEngine*     mpTextEngine;
+
+protected:
+
+    void            UndoRedoStart();
+    void            UndoRedoEnd();
+
+    TextView*       GetView() const { return mpTextEngine->GetActiveView(); }
+
+public:
+    explicit TextUndoManager( TextEngine* pTextEngine );
+    virtual ~TextUndoManager() override;
+
+    using SfxUndoManager::Undo;
+    virtual bool Undo() override;
+    using SfxUndoManager::Redo;
+    virtual bool Redo() override;
+
+};
+
+class TextUndo : public SfxUndoAction
+{
+private:
+    TextEngine*         mpTextEngine;
+
+protected:
+
+    TextView*           GetView() const { return mpTextEngine->GetActiveView(); }
+    void                SetSelection( const TextSelection& rSel );
+
+    TextDoc*            GetDoc() const { return mpTextEngine->mpDoc.get(); }
+    TEParaPortions*     GetTEParaPortions() const { return mpTextEngine->mpTEParaPortions.get(); }
+
+public:
+    explicit            TextUndo( TextEngine* pTextEngine );
+    virtual             ~TextUndo() override;
+
+    TextEngine*         GetTextEngine() const   { return mpTextEngine; }
+
+    virtual void        Undo() override      = 0;
+    virtual void        Redo() override      = 0;
+
+    virtual OUString GetComment() const override;
+};
+
+#endif // INCLUDED_VCL_SOURCE_EDIT_TEXTUNDO_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/edit/textview.cxx b/vcl/source/edit/textview.cxx
new file mode 100644
index 000000000..ef83beab4
--- /dev/null
+++ b/vcl/source/edit/textview.cxx
@@ -0,0 +1,2237 @@
+/* -*- 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 <memory>
+#include <i18nutil/searchopt.hxx>
+#include <o3tl/deleter.hxx>
+#include <vcl/textview.hxx>
+#include <vcl/texteng.hxx>
+#include <vcl/settings.hxx>
+#include "textdoc.hxx"
+#include <vcl/textdata.hxx>
+#include <vcl/transfer.hxx>
+#include <vcl/xtextedt.hxx>
+#include "textdat2.hxx"
+#include <vcl/commandevent.hxx>
+#include <vcl/inputctx.hxx>
+
+#include <svl/undo.hxx>
+#include <vcl/cursor.hxx>
+#include <vcl/weld.hxx>
+#include <vcl/window.hxx>
+#include <vcl/svapp.hxx>
+#include <tools/stream.hxx>
+
+#include <sal/log.hxx>
+#include <sot/formats.hxx>
+
+#include <cppuhelper/weak.hxx>
+#include <cppuhelper/queryinterface.hxx>
+#include <com/sun/star/i18n/XBreakIterator.hpp>
+#include <com/sun/star/i18n/CharacterIteratorMode.hpp>
+#include <com/sun/star/i18n/WordType.hpp>
+#include <com/sun/star/datatransfer/UnsupportedFlavorException.hpp>
+#include <com/sun/star/datatransfer/XTransferable.hpp>
+#include <com/sun/star/datatransfer/clipboard/XClipboard.hpp>
+#include <com/sun/star/datatransfer/clipboard/XFlushableClipboard.hpp>
+#include <com/sun/star/datatransfer/dnd/DNDConstants.hpp>
+#include <com/sun/star/datatransfer/dnd/XDragGestureRecognizer.hpp>
+#include <com/sun/star/datatransfer/dnd/XDropTarget.hpp>
+#include <com/sun/star/util/SearchFlags.hpp>
+
+#include <vcl/toolkit/edit.hxx>
+
+#include <sot/exchange.hxx>
+
+#include <algorithm>
+#include <cstddef>
+
+TETextDataObject::TETextDataObject( const OUString& rText ) : maText( rText )
+{
+}
+
+// css::uno::XInterface
+css::uno::Any TETextDataObject::queryInterface( const css::uno::Type & rType )
+{
+    css::uno::Any aRet = ::cppu::queryInterface( rType, static_cast< css::datatransfer::XTransferable* >(this) );
+    return (aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType ));
+}
+
+// css::datatransfer::XTransferable
+css::uno::Any TETextDataObject::getTransferData( const css::datatransfer::DataFlavor& rFlavor )
+{
+    css::uno::Any aAny;
+
+    SotClipboardFormatId nT = SotExchange::GetFormat( rFlavor );
+    if ( nT == SotClipboardFormatId::STRING )
+    {
+        aAny <<= maText;
+    }
+    else if ( nT == SotClipboardFormatId::HTML )
+    {
+        sal_uInt64 nLen = GetHTMLStream().TellEnd();
+        GetHTMLStream().Seek(0);
+
+        css::uno::Sequence< sal_Int8 > aSeq( nLen );
+        memcpy( aSeq.getArray(), GetHTMLStream().GetData(), nLen );
+        aAny <<= aSeq;
+    }
+    else
+    {
+        throw css::datatransfer::UnsupportedFlavorException();
+    }
+    return aAny;
+}
+
+css::uno::Sequence< css::datatransfer::DataFlavor > TETextDataObject::getTransferDataFlavors(  )
+{
+    GetHTMLStream().Seek( STREAM_SEEK_TO_END );
+    bool bHTML = GetHTMLStream().Tell() > 0;
+    css::uno::Sequence< css::datatransfer::DataFlavor > aDataFlavors( bHTML ? 2 : 1 );
+    SotExchange::GetFormatDataFlavor( SotClipboardFormatId::STRING, aDataFlavors.getArray()[0] );
+    if ( bHTML )
+        SotExchange::GetFormatDataFlavor( SotClipboardFormatId::HTML, aDataFlavors.getArray()[1] );
+    return aDataFlavors;
+}
+
+sal_Bool TETextDataObject::isDataFlavorSupported( const css::datatransfer::DataFlavor& rFlavor )
+{
+    SotClipboardFormatId nT = SotExchange::GetFormat( rFlavor );
+    return ( nT == SotClipboardFormatId::STRING );
+}
+
+struct ImpTextView
+{
+    ExtTextEngine*      mpTextEngine;
+
+    VclPtr<vcl::Window> mpWindow;
+    TextSelection       maSelection;
+    Point               maStartDocPos;
+
+    std::unique_ptr<vcl::Cursor, o3tl::default_delete<vcl::Cursor>> mpCursor;
+
+    std::unique_ptr<TextDDInfo, o3tl::default_delete<TextDDInfo>> mpDDInfo;
+
+    std::unique_ptr<SelectionEngine> mpSelEngine;
+    std::unique_ptr<TextSelFunctionSet> mpSelFuncSet;
+
+    css::uno::Reference< css::datatransfer::dnd::XDragSourceListener > mxDnDListener;
+
+    sal_uInt16              mnTravelXPos;
+
+    bool                mbAutoScroll            : 1;
+    bool                mbInsertMode            : 1;
+    bool                mbReadOnly              : 1;
+    bool                mbPaintSelection        : 1;
+    bool                mbAutoIndent            : 1;
+    bool                mbCursorEnabled         : 1;
+    bool                mbClickedInSelection    : 1;
+    bool                mbCursorAtEndOfLine;
+};
+
+TextView::TextView( ExtTextEngine* pEng, vcl::Window* pWindow ) :
+    mpImpl(new ImpTextView)
+{
+    pWindow->EnableRTL( false );
+
+    mpImpl->mpWindow = pWindow;
+    mpImpl->mpTextEngine = pEng;
+
+    mpImpl->mbPaintSelection = true;
+    mpImpl->mbAutoScroll = true;
+    mpImpl->mbInsertMode = true;
+    mpImpl->mbReadOnly = false;
+    mpImpl->mbAutoIndent = false;
+    mpImpl->mbCursorEnabled = true;
+    mpImpl->mbClickedInSelection = false;
+//  mbInSelection = false;
+
+    mpImpl->mnTravelXPos = TRAVEL_X_DONTKNOW;
+
+    mpImpl->mpSelFuncSet = std::make_unique<TextSelFunctionSet>( this );
+    mpImpl->mpSelEngine = std::make_unique<SelectionEngine>( mpImpl->mpWindow, mpImpl->mpSelFuncSet.get() );
+    mpImpl->mpSelEngine->SetSelectionMode( SelectionMode::Range );
+    mpImpl->mpSelEngine->EnableDrag( true );
+
+    mpImpl->mpCursor.reset(new vcl::Cursor);
+    mpImpl->mpCursor->Show();
+    pWindow->SetCursor( mpImpl->mpCursor.get() );
+    pWindow->SetInputContext( InputContext( pEng->GetFont(), InputContextFlags::Text|InputContextFlags::ExtText ) );
+
+    pWindow->GetOutDev()->SetLineColor();
+
+    if ( pWindow->GetDragGestureRecognizer().is() )
+    {
+        mpImpl->mxDnDListener = new vcl::unohelper::DragAndDropWrapper( this );
+
+        css::uno::Reference< css::datatransfer::dnd::XDragGestureListener> xDGL( mpImpl->mxDnDListener, css::uno::UNO_QUERY );
+        pWindow->GetDragGestureRecognizer()->addDragGestureListener( xDGL );
+        css::uno::Reference< css::datatransfer::dnd::XDropTargetListener> xDTL( xDGL, css::uno::UNO_QUERY );
+        pWindow->GetDropTarget()->addDropTargetListener( xDTL );
+        pWindow->GetDropTarget()->setActive( true );
+        pWindow->GetDropTarget()->setDefaultActions( css::datatransfer::dnd::DNDConstants::ACTION_COPY_OR_MOVE );
+    }
+}
+
+TextView::~TextView()
+{
+    mpImpl->mpSelEngine.reset();
+    mpImpl->mpSelFuncSet.reset();
+
+    if ( mpImpl->mpWindow->GetCursor() == mpImpl->mpCursor.get() )
+        mpImpl->mpWindow->SetCursor( nullptr );
+
+    mpImpl->mpCursor.reset();
+    mpImpl->mpDDInfo.reset();
+}
+
+void TextView::Invalidate()
+{
+    mpImpl->mpWindow->Invalidate();
+}
+
+void TextView::SetSelection( const TextSelection& rTextSel, bool bGotoCursor )
+{
+    // if someone left an empty attribute and then the Outliner manipulated the selection
+    if ( !mpImpl->maSelection.HasRange() )
+        mpImpl->mpTextEngine->CursorMoved( mpImpl->maSelection.GetStart().GetPara() );
+
+    // if the selection is manipulated after a KeyInput
+    mpImpl->mpTextEngine->CheckIdleFormatter();
+
+    HideSelection();
+    TextSelection aNewSel( rTextSel );
+    mpImpl->mpTextEngine->ValidateSelection( aNewSel );
+    ImpSetSelection( aNewSel );
+    ShowSelection();
+    ShowCursor( bGotoCursor );
+}
+
+void TextView::SetSelection( const TextSelection& rTextSel )
+{
+    SetSelection( rTextSel, mpImpl->mbAutoScroll );
+}
+
+const TextSelection& TextView::GetSelection() const
+{
+    return mpImpl->maSelection;
+}
+TextSelection&      TextView::GetSelection()
+{
+    return mpImpl->maSelection;
+}
+
+void TextView::DeleteSelected()
+{
+//  HideSelection();
+
+    mpImpl->mpTextEngine->UndoActionStart();
+    TextPaM aPaM = mpImpl->mpTextEngine->ImpDeleteText( mpImpl->maSelection );
+    mpImpl->mpTextEngine->UndoActionEnd();
+
+    ImpSetSelection( aPaM );
+    mpImpl->mpTextEngine->FormatAndUpdate( this );
+    ShowCursor();
+}
+
+void TextView::ImpPaint(vcl::RenderContext& rRenderContext, const Point& rStartPos, tools::Rectangle const* pPaintArea, TextSelection const* pSelection)
+{
+    if (!mpImpl->mbPaintSelection)
+    {
+        pSelection = nullptr;
+    }
+    else
+    {
+        // set correct background color;
+        // unfortunately we cannot detect if it has changed
+        vcl::Font aFont = mpImpl->mpTextEngine->GetFont();
+        Color aColor = rRenderContext.GetBackground().GetColor();
+        aColor.SetAlpha(255);
+        if (aColor != aFont.GetFillColor())
+        {
+            if (aFont.IsTransparent())
+                aColor = COL_TRANSPARENT;
+            aFont.SetFillColor(aColor);
+            mpImpl->mpTextEngine->maFont = aFont;
+        }
+    }
+
+    mpImpl->mpTextEngine->ImpPaint(&rRenderContext, rStartPos, pPaintArea, pSelection);
+}
+
+void TextView::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect)
+{
+    ImpPaint(rRenderContext, rRect);
+}
+
+void TextView::ImpPaint(vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect)
+{
+    if ( !mpImpl->mpTextEngine->GetUpdateMode() || mpImpl->mpTextEngine->IsInUndo() )
+        return;
+
+    TextSelection *pDrawSelection = nullptr;
+    if (mpImpl->maSelection.HasRange())
+        pDrawSelection = &mpImpl->maSelection;
+
+    Point aStartPos = ImpGetOutputStartPos(mpImpl->maStartDocPos);
+    ImpPaint(rRenderContext, aStartPos, &rRect, pDrawSelection);
+}
+
+void TextView::ImpSetSelection( const TextSelection& rSelection )
+{
+    if (rSelection == mpImpl->maSelection)
+        return;
+
+    bool bCaret = false, bSelection = false;
+    const TextPaM &rEnd = rSelection.GetEnd();
+    const TextPaM &rOldEnd = mpImpl->maSelection.GetEnd();
+    bool bGap = rSelection.HasRange(), bOldGap = mpImpl->maSelection.HasRange();
+    if (rEnd != rOldEnd)
+        bCaret = true;
+    if (bGap || bOldGap)
+        bSelection = true;
+
+    mpImpl->maSelection = rSelection;
+
+    if (bSelection)
+        mpImpl->mpTextEngine->Broadcast(TextHint(SfxHintId::TextViewSelectionChanged));
+
+    if (bCaret)
+        mpImpl->mpTextEngine->Broadcast(TextHint(SfxHintId::TextViewCaretChanged));
+}
+
+void TextView::ShowSelection()
+{
+    ImpShowHideSelection();
+}
+
+void TextView::HideSelection()
+{
+    ImpShowHideSelection();
+}
+
+void TextView::ShowSelection( const TextSelection& rRange )
+{
+    ImpShowHideSelection( &rRange );
+}
+
+void TextView::ImpShowHideSelection(const TextSelection* pRange)
+{
+    const TextSelection* pRangeOrSelection = pRange ? pRange : &mpImpl->maSelection;
+
+    if ( !pRangeOrSelection->HasRange() )
+        return;
+
+    if( mpImpl->mpWindow->IsPaintTransparent() )
+        mpImpl->mpWindow->Invalidate();
+    else
+    {
+        TextSelection aRange( *pRangeOrSelection );
+        aRange.Justify();
+        bool bVisCursor = mpImpl->mpCursor->IsVisible();
+        mpImpl->mpCursor->Hide();
+        Invalidate();
+        if (bVisCursor)
+            mpImpl->mpCursor->Show();
+    }
+}
+
+bool TextView::KeyInput( const KeyEvent& rKeyEvent )
+{
+    bool bDone      = true;
+    bool bModified  = false;
+    bool bMoved     = false;
+    bool bEndKey    = false;    // special CursorPosition
+    bool bAllowIdle = true;
+
+    // check mModified;
+    // the local bModified is not set e.g. by Cut/Paste, as here
+    // the update happens somewhere else
+    bool bWasModified = mpImpl->mpTextEngine->IsModified();
+    mpImpl->mpTextEngine->SetModified( false );
+
+    TextSelection aCurSel( mpImpl->maSelection );
+    TextSelection aOldSel( aCurSel );
+
+    sal_uInt16 nCode = rKeyEvent.GetKeyCode().GetCode();
+    KeyFuncType eFunc = rKeyEvent.GetKeyCode().GetFunction();
+    if ( eFunc != KeyFuncType::DONTKNOW )
+    {
+        switch ( eFunc )
+        {
+            case KeyFuncType::CUT:
+            {
+                if ( !mpImpl->mbReadOnly )
+                    Cut();
+            }
+            break;
+            case KeyFuncType::COPY:
+            {
+                Copy();
+            }
+            break;
+            case KeyFuncType::PASTE:
+            {
+                if ( !mpImpl->mbReadOnly )
+                    Paste();
+            }
+            break;
+            case KeyFuncType::UNDO:
+            {
+                if ( !mpImpl->mbReadOnly )
+                    Undo();
+            }
+            break;
+            case KeyFuncType::REDO:
+            {
+                if ( !mpImpl->mbReadOnly )
+                    Redo();
+            }
+            break;
+
+            default:    // might get processed below
+                        eFunc = KeyFuncType::DONTKNOW;
+        }
+    }
+    if ( eFunc == KeyFuncType::DONTKNOW )
+    {
+        switch ( nCode )
+        {
+            case KEY_UP:
+            case KEY_DOWN:
+            case KEY_LEFT:
+            case KEY_RIGHT:
+            case KEY_HOME:
+            case KEY_END:
+            case KEY_PAGEUP:
+            case KEY_PAGEDOWN:
+            case css::awt::Key::MOVE_WORD_FORWARD:
+            case css::awt::Key::SELECT_WORD_FORWARD:
+            case css::awt::Key::MOVE_WORD_BACKWARD:
+            case css::awt::Key::SELECT_WORD_BACKWARD:
+            case css::awt::Key::MOVE_TO_BEGIN_OF_LINE:
+            case css::awt::Key::MOVE_TO_END_OF_LINE:
+            case css::awt::Key::SELECT_TO_BEGIN_OF_LINE:
+            case css::awt::Key::SELECT_TO_END_OF_LINE:
+            case css::awt::Key::MOVE_TO_BEGIN_OF_PARAGRAPH:
+            case css::awt::Key::MOVE_TO_END_OF_PARAGRAPH:
+            case css::awt::Key::SELECT_TO_BEGIN_OF_PARAGRAPH:
+            case css::awt::Key::SELECT_TO_END_OF_PARAGRAPH:
+            case css::awt::Key::MOVE_TO_BEGIN_OF_DOCUMENT:
+            case css::awt::Key::MOVE_TO_END_OF_DOCUMENT:
+            case css::awt::Key::SELECT_TO_BEGIN_OF_DOCUMENT:
+            case css::awt::Key::SELECT_TO_END_OF_DOCUMENT:
+            {
+                if ( ( !rKeyEvent.GetKeyCode().IsMod2() || ( nCode == KEY_LEFT ) || ( nCode == KEY_RIGHT ) )
+                      && !( rKeyEvent.GetKeyCode().IsMod1() && ( nCode == KEY_PAGEUP || nCode == KEY_PAGEDOWN ) ) )
+                {
+                    aCurSel = ImpMoveCursor( rKeyEvent );
+                    if ( aCurSel.HasRange() ) {
+                        css::uno::Reference<css::datatransfer::clipboard::XClipboard> aSelection(GetSystemPrimarySelection());
+                        Copy( aSelection );
+                    }
+                    bMoved = true;
+                    if ( nCode == KEY_END )
+                        bEndKey = true;
+                }
+                else
+                    bDone = false;
+            }
+            break;
+            case KEY_BACKSPACE:
+            case KEY_DELETE:
+            case css::awt::Key::DELETE_WORD_BACKWARD:
+            case css::awt::Key::DELETE_WORD_FORWARD:
+            case css::awt::Key::DELETE_TO_BEGIN_OF_LINE:
+            case css::awt::Key::DELETE_TO_END_OF_LINE:
+            {
+                if ( !mpImpl->mbReadOnly && !rKeyEvent.GetKeyCode().IsMod2() )
+                {
+                    sal_uInt8 nDel = ( nCode == KEY_DELETE ) ? DEL_RIGHT : DEL_LEFT;
+                    sal_uInt8 nMode = rKeyEvent.GetKeyCode().IsMod1() ? DELMODE_RESTOFWORD : DELMODE_SIMPLE;
+                    if ( ( nMode == DELMODE_RESTOFWORD ) && rKeyEvent.GetKeyCode().IsShift() )
+                        nMode = DELMODE_RESTOFCONTENT;
+
+                    switch( nCode )
+                    {
+                    case css::awt::Key::DELETE_WORD_BACKWARD:
+                        nDel = DEL_LEFT;
+                        nMode = DELMODE_RESTOFWORD;
+                        break;
+                    case css::awt::Key::DELETE_WORD_FORWARD:
+                        nDel = DEL_RIGHT;
+                        nMode = DELMODE_RESTOFWORD;
+                        break;
+                    case css::awt::Key::DELETE_TO_BEGIN_OF_LINE:
+                        nDel = DEL_LEFT;
+                        nMode = DELMODE_RESTOFCONTENT;
+                        break;
+                    case css::awt::Key::DELETE_TO_END_OF_LINE:
+                        nDel = DEL_RIGHT;
+                        nMode = DELMODE_RESTOFCONTENT;
+                        break;
+                    default: break;
+                    }
+
+                    mpImpl->mpTextEngine->UndoActionStart();
+                    aCurSel = ImpDelete( nDel, nMode );
+                    mpImpl->mpTextEngine->UndoActionEnd();
+                    bModified = true;
+                    bAllowIdle = false;
+                }
+                else
+                    bDone = false;
+            }
+            break;
+            case KEY_TAB:
+            {
+                if ( !mpImpl->mbReadOnly && !rKeyEvent.GetKeyCode().IsShift() &&
+                        !rKeyEvent.GetKeyCode().IsMod1() && !rKeyEvent.GetKeyCode().IsMod2() &&
+                        ImplCheckTextLen( OUString('x') ) )
+                {
+                    aCurSel = mpImpl->mpTextEngine->ImpInsertText( aCurSel, '\t', !IsInsertMode() );
+                    bModified = true;
+                }
+                else
+                    bDone = false;
+            }
+            break;
+            case KEY_RETURN:
+            {
+                // do not swallow Shift-RETURN, as this would disable multi-line entries
+                // in dialogs & property editors
+                if ( !mpImpl->mbReadOnly && !rKeyEvent.GetKeyCode().IsMod1() &&
+                        !rKeyEvent.GetKeyCode().IsMod2() && ImplCheckTextLen( OUString('x') ) )
+                {
+                    mpImpl->mpTextEngine->UndoActionStart();
+                    aCurSel = mpImpl->mpTextEngine->ImpInsertParaBreak( aCurSel );
+                    if ( mpImpl->mbAutoIndent )
+                    {
+                        TextNode* pPrev = mpImpl->mpTextEngine->mpDoc->GetNodes()[ aCurSel.GetEnd().GetPara() - 1 ].get();
+                        sal_Int32 n = 0;
+                        while ( ( n < pPrev->GetText().getLength() ) && (
+                                    ( pPrev->GetText()[ n ] == ' ' ) ||
+                                    ( pPrev->GetText()[ n ] == '\t' ) ) )
+                        {
+                            n++;
+                        }
+                        if ( n )
+                            aCurSel = mpImpl->mpTextEngine->ImpInsertText( aCurSel, pPrev->GetText().copy( 0, n ) );
+                    }
+                    mpImpl->mpTextEngine->UndoActionEnd();
+                    bModified = true;
+                }
+                else
+                    bDone = false;
+            }
+            break;
+            case KEY_INSERT:
+            {
+                if ( !mpImpl->mbReadOnly )
+                    SetInsertMode( !IsInsertMode() );
+            }
+            break;
+            default:
+            {
+                if ( TextEngine::IsSimpleCharInput( rKeyEvent ) )
+                {
+                    sal_Unicode nCharCode = rKeyEvent.GetCharCode();
+                    if ( !mpImpl->mbReadOnly && ImplCheckTextLen( OUString(nCharCode) ) )    // otherwise swallow the character anyway
+                    {
+                        aCurSel = mpImpl->mpTextEngine->ImpInsertText( nCharCode, aCurSel, !IsInsertMode(), true );
+                        bModified = true;
+                    }
+                }
+                else
+                    bDone = false;
+            }
+        }
+    }
+
+    if ( aCurSel != aOldSel )   // Check if changed, maybe other method already changed mpImpl->maSelection, don't overwrite that!
+        ImpSetSelection( aCurSel );
+
+    if ( ( nCode != KEY_UP ) && ( nCode != KEY_DOWN ) )
+        mpImpl->mnTravelXPos = TRAVEL_X_DONTKNOW;
+
+    if ( bModified )
+    {
+        // Idle-Formatter only if AnyInput
+        if ( bAllowIdle && Application::AnyInput( VclInputFlags::KEYBOARD) )
+            mpImpl->mpTextEngine->IdleFormatAndUpdate( this );
+        else
+            mpImpl->mpTextEngine->FormatAndUpdate( this);
+    }
+    else if ( bMoved )
+    {
+        // selection is painted now in ImpMoveCursor
+        ImpShowCursor( mpImpl->mbAutoScroll, true, bEndKey );
+    }
+
+    if ( mpImpl->mpTextEngine->IsModified() )
+        mpImpl->mpTextEngine->Broadcast( TextHint( SfxHintId::TextModified ) );
+    else if ( bWasModified )
+        mpImpl->mpTextEngine->SetModified( true );
+
+    return bDone;
+}
+
+void TextView::MouseButtonUp( const MouseEvent& rMouseEvent )
+{
+    mpImpl->mbClickedInSelection = false;
+    mpImpl->mnTravelXPos = TRAVEL_X_DONTKNOW;
+    mpImpl->mpSelEngine->SelMouseButtonUp( rMouseEvent );
+    if ( rMouseEvent.IsMiddle() && !IsReadOnly() &&
+         ( GetWindow()->GetSettings().GetMouseSettings().GetMiddleButtonAction() == MouseMiddleButtonAction::PasteSelection ) )
+    {
+        css::uno::Reference<css::datatransfer::clipboard::XClipboard> aSelection(GetSystemPrimarySelection());
+        Paste( aSelection );
+        if ( mpImpl->mpTextEngine->IsModified() )
+            mpImpl->mpTextEngine->Broadcast( TextHint( SfxHintId::TextModified ) );
+    }
+    else if ( rMouseEvent.IsLeft() && GetSelection().HasRange() )
+    {
+        css::uno::Reference<css::datatransfer::clipboard::XClipboard> aSelection(GetSystemPrimarySelection());
+        Copy( aSelection );
+    }
+}
+
+void TextView::MouseButtonDown( const MouseEvent& rMouseEvent )
+{
+    mpImpl->mpTextEngine->CheckIdleFormatter();    // for fast typing and MouseButtonDown
+    mpImpl->mnTravelXPos = TRAVEL_X_DONTKNOW;
+    mpImpl->mbClickedInSelection = IsSelectionAtPoint( rMouseEvent.GetPosPixel() );
+
+    mpImpl->mpTextEngine->SetActiveView( this );
+
+    mpImpl->mpSelEngine->SelMouseButtonDown( rMouseEvent );
+
+    // mbu 20.01.2005 - SelMouseButtonDown() possibly triggers a 'selection changed'
+    // notification. The appropriate handler could change the current selection,
+    // which is the case in the MailMerge address block control. To enable select'n'drag
+    // we need to reevaluate the selection after the notification has been fired.
+    mpImpl->mbClickedInSelection = IsSelectionAtPoint( rMouseEvent.GetPosPixel() );
+
+    // special cases
+    if ( rMouseEvent.IsShift() || ( rMouseEvent.GetClicks() < 2 ))
+        return;
+
+    if ( rMouseEvent.IsMod2() )
+    {
+        HideSelection();
+        ImpSetSelection( mpImpl->maSelection.GetEnd() );
+        SetCursorAtPoint( rMouseEvent.GetPosPixel() );  // not set by SelectionEngine for MOD2
+    }
+
+    if ( rMouseEvent.GetClicks() == 2 )
+    {
+        // select word
+        if ( mpImpl->maSelection.GetEnd().GetIndex() < mpImpl->mpTextEngine->GetTextLen( mpImpl->maSelection.GetEnd().GetPara() ) )
+        {
+            HideSelection();
+            // tdf#57879 - expand selection to include connector punctuations
+            TextSelection aNewSel;
+            mpImpl->mpTextEngine->GetWord( mpImpl->maSelection.GetEnd(), &aNewSel.GetStart(), &aNewSel.GetEnd() );
+            ImpSetSelection( aNewSel );
+            ShowSelection();
+            ShowCursor();
+        }
+    }
+    else if ( rMouseEvent.GetClicks() == 3 )
+    {
+        // select paragraph
+        if ( mpImpl->maSelection.GetStart().GetIndex() || ( mpImpl->maSelection.GetEnd().GetIndex() < mpImpl->mpTextEngine->GetTextLen( mpImpl->maSelection.GetEnd().GetPara() ) ) )
+        {
+            HideSelection();
+            TextSelection aNewSel( mpImpl->maSelection );
+            aNewSel.GetStart().GetIndex() = 0;
+            aNewSel.GetEnd().GetIndex() = mpImpl->mpTextEngine->mpDoc->GetNodes()[ mpImpl->maSelection.GetEnd().GetPara() ]->GetText().getLength();
+            ImpSetSelection( aNewSel );
+            ShowSelection();
+            ShowCursor();
+        }
+    }
+}
+
+void TextView::MouseMove( const MouseEvent& rMouseEvent )
+{
+    mpImpl->mnTravelXPos = TRAVEL_X_DONTKNOW;
+    mpImpl->mpSelEngine->SelMouseMove( rMouseEvent );
+}
+
+void TextView::Command( const CommandEvent& rCEvt )
+{
+    mpImpl->mpTextEngine->CheckIdleFormatter();    // for fast typing and MouseButtonDown
+    mpImpl->mpTextEngine->SetActiveView( this );
+
+    if ( rCEvt.GetCommand() == CommandEventId::StartExtTextInput )
+    {
+        DeleteSelected();
+        TextNode* pNode = mpImpl->mpTextEngine->mpDoc->GetNodes()[ GetSelection().GetEnd().GetPara() ].get();
+        mpImpl->mpTextEngine->mpIMEInfos = std::make_unique<TEIMEInfos>( GetSelection().GetEnd(), pNode->GetText().copy( GetSelection().GetEnd().GetIndex() ) );
+        mpImpl->mpTextEngine->mpIMEInfos->bWasCursorOverwrite = !IsInsertMode();
+    }
+    else if ( rCEvt.GetCommand() == CommandEventId::EndExtTextInput )
+    {
+        SAL_WARN_IF( !mpImpl->mpTextEngine->mpIMEInfos, "vcl", "CommandEventId::EndExtTextInput => No Start ?" );
+        if( mpImpl->mpTextEngine->mpIMEInfos )
+        {
+            TEParaPortion* pPortion = mpImpl->mpTextEngine->mpTEParaPortions->GetObject( mpImpl->mpTextEngine->mpIMEInfos->aPos.GetPara() );
+            pPortion->MarkSelectionInvalid( mpImpl->mpTextEngine->mpIMEInfos->aPos.GetIndex() );
+
+            bool bInsertMode = !mpImpl->mpTextEngine->mpIMEInfos->bWasCursorOverwrite;
+
+            mpImpl->mpTextEngine->mpIMEInfos.reset();
+
+            mpImpl->mpTextEngine->TextModified();
+            mpImpl->mpTextEngine->FormatAndUpdate( this );
+
+            SetInsertMode( bInsertMode );
+
+            if ( mpImpl->mpTextEngine->IsModified() )
+                mpImpl->mpTextEngine->Broadcast( TextHint( SfxHintId::TextModified ) );
+        }
+    }
+    else if ( rCEvt.GetCommand() == CommandEventId::ExtTextInput )
+    {
+        SAL_WARN_IF( !mpImpl->mpTextEngine->mpIMEInfos, "vcl", "CommandEventId::ExtTextInput => No Start ?" );
+        if( mpImpl->mpTextEngine->mpIMEInfos )
+        {
+            const CommandExtTextInputData* pData = rCEvt.GetExtTextInputData();
+
+            if ( !pData->IsOnlyCursorChanged() )
+            {
+                TextSelection aSelect( mpImpl->mpTextEngine->mpIMEInfos->aPos );
+                aSelect.GetEnd().GetIndex() += mpImpl->mpTextEngine->mpIMEInfos->nLen;
+                aSelect = mpImpl->mpTextEngine->ImpDeleteText( aSelect );
+                aSelect = mpImpl->mpTextEngine->ImpInsertText( aSelect, pData->GetText() );
+
+                if ( mpImpl->mpTextEngine->mpIMEInfos->bWasCursorOverwrite )
+                {
+                    const sal_Int32 nOldIMETextLen = mpImpl->mpTextEngine->mpIMEInfos->nLen;
+                    const sal_Int32 nNewIMETextLen = pData->GetText().getLength();
+
+                    if ( ( nOldIMETextLen > nNewIMETextLen ) &&
+                         ( nNewIMETextLen < mpImpl->mpTextEngine->mpIMEInfos->aOldTextAfterStartPos.getLength() ) )
+                    {
+                        // restore old characters
+                        sal_Int32 nRestore = nOldIMETextLen - nNewIMETextLen;
+                        TextPaM aPaM( mpImpl->mpTextEngine->mpIMEInfos->aPos );
+                        aPaM.GetIndex() += nNewIMETextLen;
+                        mpImpl->mpTextEngine->ImpInsertText( aPaM, mpImpl->mpTextEngine->mpIMEInfos->aOldTextAfterStartPos.copy( nNewIMETextLen, nRestore ) );
+                    }
+                    else if ( ( nOldIMETextLen < nNewIMETextLen ) &&
+                              ( nOldIMETextLen < mpImpl->mpTextEngine->mpIMEInfos->aOldTextAfterStartPos.getLength() ) )
+                    {
+                        // overwrite
+                        const sal_Int32 nOverwrite = std::min( nNewIMETextLen, mpImpl->mpTextEngine->mpIMEInfos->aOldTextAfterStartPos.getLength() ) - nOldIMETextLen;
+                        SAL_WARN_IF( !nOverwrite || (nOverwrite >= 0xFF00), "vcl", "IME Overwrite?!" );
+                        TextPaM aPaM( mpImpl->mpTextEngine->mpIMEInfos->aPos );
+                        aPaM.GetIndex() += nNewIMETextLen;
+                        TextSelection aSel( aPaM );
+                        aSel.GetEnd().GetIndex() += nOverwrite;
+                        mpImpl->mpTextEngine->ImpDeleteText( aSel );
+                    }
+                }
+
+                if ( pData->GetTextAttr() )
+                {
+                    mpImpl->mpTextEngine->mpIMEInfos->CopyAttribs( pData->GetTextAttr(), pData->GetText().getLength() );
+                }
+                else
+                {
+                    mpImpl->mpTextEngine->mpIMEInfos->DestroyAttribs();
+                }
+
+                TEParaPortion* pPPortion = mpImpl->mpTextEngine->mpTEParaPortions->GetObject( mpImpl->mpTextEngine->mpIMEInfos->aPos.GetPara() );
+                pPPortion->MarkSelectionInvalid( mpImpl->mpTextEngine->mpIMEInfos->aPos.GetIndex() );
+                mpImpl->mpTextEngine->FormatAndUpdate( this );
+            }
+
+            TextSelection aNewSel = TextPaM( mpImpl->mpTextEngine->mpIMEInfos->aPos.GetPara(), mpImpl->mpTextEngine->mpIMEInfos->aPos.GetIndex()+pData->GetCursorPos() );
+            SetSelection( aNewSel );
+            SetInsertMode( !pData->IsCursorOverwrite() );
+
+            if ( pData->IsCursorVisible() )
+                ShowCursor();
+            else
+                HideCursor();
+        }
+    }
+    else if ( rCEvt.GetCommand() == CommandEventId::CursorPos )
+    {
+        if ( mpImpl->mpTextEngine->mpIMEInfos && mpImpl->mpTextEngine->mpIMEInfos->nLen )
+        {
+            TextPaM aPaM( GetSelection().GetEnd() );
+            tools::Rectangle aR1 = mpImpl->mpTextEngine->PaMtoEditCursor( aPaM );
+
+            sal_Int32 nInputEnd = mpImpl->mpTextEngine->mpIMEInfos->aPos.GetIndex() + mpImpl->mpTextEngine->mpIMEInfos->nLen;
+
+            if ( !mpImpl->mpTextEngine->IsFormatted() )
+                mpImpl->mpTextEngine->FormatDoc();
+
+            TEParaPortion* pParaPortion = mpImpl->mpTextEngine->mpTEParaPortions->GetObject( aPaM.GetPara() );
+            std::vector<TextLine>::size_type nLine = pParaPortion->GetLineNumber( aPaM.GetIndex(), true );
+            TextLine& rLine = pParaPortion->GetLines()[ nLine ];
+            if ( nInputEnd > rLine.GetEnd() )
+                nInputEnd = rLine.GetEnd();
+            tools::Rectangle aR2 = mpImpl->mpTextEngine->PaMtoEditCursor( TextPaM( aPaM.GetPara(), nInputEnd ) );
+
+            tools::Long nWidth = aR2.Left()-aR1.Right();
+            aR1.Move( -GetStartDocPos().X(), -GetStartDocPos().Y() );
+            GetWindow()->SetCursorRect( &aR1, nWidth );
+        }
+        else
+        {
+            GetWindow()->SetCursorRect();
+        }
+    }
+    else
+    {
+        mpImpl->mpSelEngine->Command( rCEvt );
+    }
+}
+
+void TextView::ShowCursor( bool bGotoCursor, bool bForceVisCursor )
+{
+    // this setting has more weight
+    if ( !mpImpl->mbAutoScroll )
+        bGotoCursor = false;
+    ImpShowCursor( bGotoCursor, bForceVisCursor, false );
+}
+
+void TextView::HideCursor()
+{
+    mpImpl->mpCursor->Hide();
+}
+
+void TextView::Scroll( tools::Long ndX, tools::Long ndY )
+{
+    SAL_WARN_IF( !mpImpl->mpTextEngine->IsFormatted(), "vcl", "Scroll: Not formatted!" );
+
+    if ( !ndX && !ndY )
+        return;
+
+    Point aNewStartPos( mpImpl->maStartDocPos );
+
+    // Vertical:
+    aNewStartPos.AdjustY( -ndY );
+    if ( aNewStartPos.Y() < 0 )
+        aNewStartPos.setY( 0 );
+
+    // Horizontal:
+    aNewStartPos.AdjustX( -ndX );
+    if ( aNewStartPos.X() < 0 )
+        aNewStartPos.setX( 0 );
+
+    tools::Long nDiffX = mpImpl->maStartDocPos.X() - aNewStartPos.X();
+    tools::Long nDiffY = mpImpl->maStartDocPos.Y() - aNewStartPos.Y();
+
+    if ( nDiffX || nDiffY )
+    {
+        bool bVisCursor = mpImpl->mpCursor->IsVisible();
+        mpImpl->mpCursor->Hide();
+        mpImpl->mpWindow->PaintImmediately();
+        mpImpl->maStartDocPos = aNewStartPos;
+
+        if ( mpImpl->mpTextEngine->IsRightToLeft() )
+            nDiffX = -nDiffX;
+        mpImpl->mpWindow->Scroll( nDiffX, nDiffY );
+        mpImpl->mpWindow->PaintImmediately();
+        mpImpl->mpCursor->SetPos( mpImpl->mpCursor->GetPos() + Point( nDiffX, nDiffY ) );
+        if ( bVisCursor && !mpImpl->mbReadOnly )
+            mpImpl->mpCursor->Show();
+    }
+
+    mpImpl->mpTextEngine->Broadcast( TextHint( SfxHintId::TextViewScrolled ) );
+}
+
+void TextView::Undo()
+{
+    mpImpl->mpTextEngine->SetActiveView( this );
+    mpImpl->mpTextEngine->GetUndoManager().Undo();
+}
+
+void TextView::Redo()
+{
+    mpImpl->mpTextEngine->SetActiveView( this );
+    mpImpl->mpTextEngine->GetUndoManager().Redo();
+}
+
+void TextView::Cut()
+{
+    mpImpl->mpTextEngine->UndoActionStart();
+    Copy();
+    DeleteSelected();
+    mpImpl->mpTextEngine->UndoActionEnd();
+}
+
+void TextView::Copy( css::uno::Reference< css::datatransfer::clipboard::XClipboard > const & rxClipboard )
+{
+    if ( !rxClipboard.is() )
+        return;
+
+    rtl::Reference<TETextDataObject> pDataObj = new TETextDataObject( GetSelected() );
+
+    SolarMutexReleaser aReleaser;
+
+    try
+    {
+        rxClipboard->setContents( pDataObj, nullptr );
+
+        css::uno::Reference< css::datatransfer::clipboard::XFlushableClipboard > xFlushableClipboard( rxClipboard, css::uno::UNO_QUERY );
+        if( xFlushableClipboard.is() )
+            xFlushableClipboard->flushClipboard();
+    }
+    catch( const css::uno::Exception& )
+    {
+    }
+}
+
+void TextView::Copy()
+{
+    css::uno::Reference<css::datatransfer::clipboard::XClipboard> aClipboard(GetWindow()->GetClipboard());
+    Copy( aClipboard );
+}
+
+void TextView::Paste( css::uno::Reference< css::datatransfer::clipboard::XClipboard > const & rxClipboard )
+{
+    if ( !rxClipboard.is() )
+        return;
+
+    css::uno::Reference< css::datatransfer::XTransferable > xDataObj;
+
+    try
+        {
+            SolarMutexReleaser aReleaser;
+            xDataObj = rxClipboard->getContents();
+        }
+    catch( const css::uno::Exception& )
+        {
+        }
+
+    if ( !xDataObj.is() )
+        return;
+
+    css::datatransfer::DataFlavor aFlavor;
+    SotExchange::GetFormatDataFlavor( SotClipboardFormatId::STRING, aFlavor );
+    if ( !xDataObj->isDataFlavorSupported( aFlavor ) )
+        return;
+
+    try
+    {
+        css::uno::Any aData = xDataObj->getTransferData( aFlavor );
+        OUString aText;
+        aData >>= aText;
+        bool bWasTruncated = false;
+        if( mpImpl->mpTextEngine->GetMaxTextLen() != 0 )
+            bWasTruncated = ImplTruncateNewText( aText );
+        InsertText( aText );
+        mpImpl->mpTextEngine->Broadcast( TextHint( SfxHintId::TextModified ) );
+
+        if( bWasTruncated )
+            Edit::ShowTruncationWarning(mpImpl->mpWindow->GetFrameWeld());
+    }
+    catch( const css::datatransfer::UnsupportedFlavorException& )
+    {
+    }
+}
+
+void TextView::Paste()
+{
+    css::uno::Reference<css::datatransfer::clipboard::XClipboard> aClipboard(GetWindow()->GetClipboard());
+    Paste( aClipboard );
+}
+
+OUString TextView::GetSelected() const
+{
+    return GetSelected( GetSystemLineEnd() );
+}
+
+OUString TextView::GetSelected( LineEnd aSeparator ) const
+{
+    return mpImpl->mpTextEngine->GetText( mpImpl->maSelection, aSeparator );
+}
+
+void TextView::SetInsertMode( bool bInsert )
+{
+    if ( mpImpl->mbInsertMode != bInsert )
+    {
+        mpImpl->mbInsertMode = bInsert;
+        ShowCursor( mpImpl->mbAutoScroll, false );
+    }
+}
+
+void TextView::SetReadOnly( bool bReadOnly )
+{
+    if ( mpImpl->mbReadOnly != bReadOnly )
+    {
+        mpImpl->mbReadOnly = bReadOnly;
+        if ( !mpImpl->mbReadOnly )
+            ShowCursor( mpImpl->mbAutoScroll, false );
+        else
+            HideCursor();
+
+        GetWindow()->SetInputContext( InputContext( mpImpl->mpTextEngine->GetFont(), bReadOnly ? InputContextFlags::Text|InputContextFlags::ExtText : InputContextFlags::NONE ) );
+    }
+}
+
+TextSelection const & TextView::ImpMoveCursor( const KeyEvent& rKeyEvent )
+{
+    // normally only needed for Up/Down; but who cares
+    mpImpl->mpTextEngine->CheckIdleFormatter();
+
+    TextPaM aPaM( mpImpl->maSelection.GetEnd() );
+    TextPaM aOldEnd( aPaM );
+
+    TextDirectionality eTextDirection = TextDirectionality::LeftToRight_TopToBottom;
+    if ( mpImpl->mpTextEngine->IsRightToLeft() )
+        eTextDirection = TextDirectionality::RightToLeft_TopToBottom;
+
+    KeyEvent aTranslatedKeyEvent = rKeyEvent.LogicalTextDirectionality( eTextDirection );
+
+    bool bCtrl = aTranslatedKeyEvent.GetKeyCode().IsMod1();
+    sal_uInt16 nCode = aTranslatedKeyEvent.GetKeyCode().GetCode();
+
+    bool bSelect = aTranslatedKeyEvent.GetKeyCode().IsShift();
+    switch ( nCode )
+    {
+        case KEY_UP:        aPaM = CursorUp( aPaM );
+                            break;
+        case KEY_DOWN:      aPaM = CursorDown( aPaM );
+                            break;
+        case KEY_HOME:
+            if (bCtrl)
+            {
+                aPaM = CursorStartOfDoc();
+            }
+            else
+            {
+                // tdf#145764 - move cursor to the beginning or the first non-space character in the same line
+                const TextPaM aFirstWordPaM = CursorFirstWord(aPaM);
+                aPaM = aPaM.GetIndex() == aFirstWordPaM.GetIndex() ? CursorStartOfLine(aPaM) : aFirstWordPaM;
+            }
+                            break;
+        case KEY_END:       aPaM = bCtrl ? CursorEndOfDoc() : CursorEndOfLine( aPaM );
+                            break;
+        case KEY_PAGEUP:    aPaM = bCtrl ? CursorStartOfDoc() : PageUp( aPaM );
+                            break;
+        case KEY_PAGEDOWN:  aPaM = bCtrl ? CursorEndOfDoc() : PageDown( aPaM );
+                            break;
+        case KEY_LEFT:      aPaM = bCtrl ? CursorWordLeft( aPaM ) : CursorLeft( aPaM, aTranslatedKeyEvent.GetKeyCode().IsMod2() ? sal_uInt16(css::i18n::CharacterIteratorMode::SKIPCHARACTER) : sal_uInt16(css::i18n::CharacterIteratorMode::SKIPCELL) );
+                            break;
+        case KEY_RIGHT:     aPaM = bCtrl ? CursorWordRight( aPaM ) : CursorRight( aPaM, aTranslatedKeyEvent.GetKeyCode().IsMod2() ? sal_uInt16(css::i18n::CharacterIteratorMode::SKIPCHARACTER) : sal_uInt16(css::i18n::CharacterIteratorMode::SKIPCELL) );
+                            break;
+        case css::awt::Key::SELECT_WORD_FORWARD:
+                            bSelect = true;
+                            [[fallthrough]];
+        case css::awt::Key::MOVE_WORD_FORWARD:
+                            aPaM = CursorWordRight( aPaM );
+                            break;
+        case css::awt::Key::SELECT_WORD_BACKWARD:
+                            bSelect = true;
+                            [[fallthrough]];
+        case css::awt::Key::MOVE_WORD_BACKWARD:
+                            aPaM = CursorWordLeft( aPaM );
+                            break;
+        case css::awt::Key::SELECT_TO_BEGIN_OF_LINE:
+                            bSelect = true;
+                            [[fallthrough]];
+        case css::awt::Key::MOVE_TO_BEGIN_OF_LINE:
+                            aPaM = CursorStartOfLine( aPaM );
+                            break;
+        case css::awt::Key::SELECT_TO_END_OF_LINE:
+                            bSelect = true;
+                            [[fallthrough]];
+        case css::awt::Key::MOVE_TO_END_OF_LINE:
+                            aPaM = CursorEndOfLine( aPaM );
+                            break;
+        case css::awt::Key::SELECT_TO_BEGIN_OF_PARAGRAPH:
+                            bSelect = true;
+                            [[fallthrough]];
+        case css::awt::Key::MOVE_TO_BEGIN_OF_PARAGRAPH:
+                            aPaM = CursorStartOfParagraph( aPaM );
+                            break;
+        case css::awt::Key::SELECT_TO_END_OF_PARAGRAPH:
+                            bSelect = true;
+                            [[fallthrough]];
+        case css::awt::Key::MOVE_TO_END_OF_PARAGRAPH:
+                            aPaM = CursorEndOfParagraph( aPaM );
+                            break;
+        case css::awt::Key::SELECT_TO_BEGIN_OF_DOCUMENT:
+                            bSelect = true;
+                            [[fallthrough]];
+        case css::awt::Key::MOVE_TO_BEGIN_OF_DOCUMENT:
+                            aPaM = CursorStartOfDoc();
+                            break;
+        case css::awt::Key::SELECT_TO_END_OF_DOCUMENT:
+                            bSelect = true;
+                            [[fallthrough]];
+        case css::awt::Key::MOVE_TO_END_OF_DOCUMENT:
+                            aPaM = CursorEndOfDoc();
+                            break;
+    }
+
+    // might cause a CreateAnchor or Deselection all
+    mpImpl->mpSelEngine->CursorPosChanging( bSelect, aTranslatedKeyEvent.GetKeyCode().IsMod1() );
+
+    if ( aOldEnd != aPaM )
+    {
+        mpImpl->mpTextEngine->CursorMoved( aOldEnd.GetPara() );
+
+        TextSelection aNewSelection( mpImpl->maSelection );
+        aNewSelection.GetEnd() = aPaM;
+        if ( bSelect )
+        {
+            // extend the selection
+            ImpSetSelection( aNewSelection );
+            ShowSelection( TextSelection( aOldEnd, aPaM ) );
+        }
+        else
+        {
+            aNewSelection.GetStart() = aPaM;
+            ImpSetSelection( aNewSelection );
+        }
+    }
+
+    return mpImpl->maSelection;
+}
+
+void TextView::InsertText( const OUString& rStr )
+{
+    mpImpl->mpTextEngine->UndoActionStart();
+
+    TextSelection aNewSel = mpImpl->mpTextEngine->ImpInsertText( mpImpl->maSelection, rStr );
+
+    ImpSetSelection( aNewSel );
+
+    mpImpl->mpTextEngine->UndoActionEnd();
+
+    mpImpl->mpTextEngine->FormatAndUpdate( this );
+}
+
+TextPaM TextView::CursorLeft( const TextPaM& rPaM, sal_uInt16 nCharacterIteratorMode )
+{
+    TextPaM aPaM( rPaM );
+
+    if ( aPaM.GetIndex() )
+    {
+        TextNode* pNode = mpImpl->mpTextEngine->mpDoc->GetNodes()[ aPaM.GetPara() ].get();
+        css::uno::Reference < css::i18n::XBreakIterator > xBI = mpImpl->mpTextEngine->GetBreakIterator();
+        sal_Int32 nCount = 1;
+        aPaM.GetIndex() = xBI->previousCharacters( pNode->GetText(), aPaM.GetIndex(), mpImpl->mpTextEngine->GetLocale(), nCharacterIteratorMode, nCount, nCount );
+    }
+    else if ( aPaM.GetPara() )
+    {
+        aPaM.GetPara()--;
+        TextNode* pNode = mpImpl->mpTextEngine->mpDoc->GetNodes()[ aPaM.GetPara() ].get();
+        aPaM.GetIndex() = pNode->GetText().getLength();
+    }
+    return aPaM;
+}
+
+TextPaM TextView::CursorRight( const TextPaM& rPaM, sal_uInt16 nCharacterIteratorMode )
+{
+    TextPaM aPaM( rPaM );
+
+    TextNode* pNode = mpImpl->mpTextEngine->mpDoc->GetNodes()[ aPaM.GetPara() ].get();
+    if ( aPaM.GetIndex() < pNode->GetText().getLength() )
+    {
+        css::uno::Reference < css::i18n::XBreakIterator > xBI = mpImpl->mpTextEngine->GetBreakIterator();
+        sal_Int32 nCount = 1;
+        aPaM.GetIndex() = xBI->nextCharacters( pNode->GetText(), aPaM.GetIndex(), mpImpl->mpTextEngine->GetLocale(), nCharacterIteratorMode, nCount, nCount );
+    }
+    else if ( aPaM.GetPara() < ( mpImpl->mpTextEngine->mpDoc->GetNodes().size()-1) )
+    {
+        aPaM.GetPara()++;
+        aPaM.GetIndex() = 0;
+    }
+
+    return aPaM;
+}
+
+TextPaM TextView::CursorFirstWord( const TextPaM& rPaM )
+{
+    TextPaM aPaM(rPaM);
+    TextNode* pNode = mpImpl->mpTextEngine->mpDoc->GetNodes()[aPaM.GetPara()].get();
+
+    css::uno::Reference<css::i18n::XBreakIterator> xBI = mpImpl->mpTextEngine->GetBreakIterator();
+    aPaM.GetIndex() = xBI->beginOfSentence(pNode->GetText(), 0, mpImpl->mpTextEngine->GetLocale());
+
+    return aPaM;
+}
+
+TextPaM TextView::CursorWordLeft( const TextPaM& rPaM )
+{
+    TextPaM aPaM( rPaM );
+
+    if ( aPaM.GetIndex() )
+    {
+        // tdf#57879 - expand selection to the left to include connector punctuations
+        mpImpl->mpTextEngine->GetWord( rPaM, &aPaM );
+        if ( aPaM.GetIndex() >= rPaM.GetIndex() )
+        {
+            TextNode* pNode = mpImpl->mpTextEngine->mpDoc->GetNodes()[ aPaM.GetPara() ].get();
+            css::uno::Reference < css::i18n::XBreakIterator > xBI = mpImpl->mpTextEngine->GetBreakIterator();
+            aPaM.GetIndex() = xBI->previousWord( pNode->GetText(), rPaM.GetIndex(), mpImpl->mpTextEngine->GetLocale(), css::i18n::WordType::ANYWORD_IGNOREWHITESPACES ).startPos;
+            if ( aPaM.GetIndex() > 0 )
+                mpImpl->mpTextEngine->GetWord( aPaM, &aPaM );
+            else
+                aPaM.GetIndex() = 0;
+        }
+    }
+    else if ( aPaM.GetPara() )
+    {
+        aPaM.GetPara()--;
+        TextNode* pNode = mpImpl->mpTextEngine->mpDoc->GetNodes()[ aPaM.GetPara() ].get();
+        aPaM.GetIndex() = pNode->GetText().getLength();
+    }
+    return aPaM;
+}
+
+TextPaM TextView::CursorWordRight( const TextPaM& rPaM )
+{
+    TextPaM aPaM( rPaM );
+
+    TextNode* pNode = mpImpl->mpTextEngine->mpDoc->GetNodes()[ aPaM.GetPara() ].get();
+    if ( aPaM.GetIndex() < pNode->GetText().getLength() )
+    {
+        css::uno::Reference < css::i18n::XBreakIterator > xBI = mpImpl->mpTextEngine->GetBreakIterator();
+        aPaM.GetIndex() = xBI->nextWord(  pNode->GetText(), aPaM.GetIndex(), mpImpl->mpTextEngine->GetLocale(), css::i18n::WordType::ANYWORD_IGNOREWHITESPACES ).endPos;
+        mpImpl->mpTextEngine->GetWord( aPaM, nullptr, &aPaM );
+    }
+    else if ( aPaM.GetPara() < ( mpImpl->mpTextEngine->mpDoc->GetNodes().size()-1) )
+    {
+        aPaM.GetPara()++;
+        aPaM.GetIndex() = 0;
+    }
+
+    return aPaM;
+}
+
+TextPaM TextView::ImpDelete( sal_uInt8 nMode, sal_uInt8 nDelMode )
+{
+    if ( mpImpl->maSelection.HasRange() )  // only delete selection
+        return mpImpl->mpTextEngine->ImpDeleteText( mpImpl->maSelection );
+
+    TextPaM aStartPaM = mpImpl->maSelection.GetStart();
+    TextPaM aEndPaM = aStartPaM;
+    if ( nMode == DEL_LEFT )
+    {
+        if ( nDelMode == DELMODE_SIMPLE )
+        {
+            aEndPaM = CursorLeft( aEndPaM, sal_uInt16(css::i18n::CharacterIteratorMode::SKIPCHARACTER) );
+        }
+        else if ( nDelMode == DELMODE_RESTOFWORD )
+        {
+            TextNode* pNode = mpImpl->mpTextEngine->mpDoc->GetNodes()[  aEndPaM.GetPara() ].get();
+            css::uno::Reference < css::i18n::XBreakIterator > xBI = mpImpl->mpTextEngine->GetBreakIterator();
+            css::i18n::Boundary aBoundary = xBI->getWordBoundary( pNode->GetText(), mpImpl->maSelection.GetEnd().GetIndex(), mpImpl->mpTextEngine->GetLocale(), css::i18n::WordType::ANYWORD_IGNOREWHITESPACES, true );
+            if ( aBoundary.startPos == mpImpl->maSelection.GetEnd().GetIndex() )
+                aBoundary = xBI->previousWord( pNode->GetText(), mpImpl->maSelection.GetEnd().GetIndex(), mpImpl->mpTextEngine->GetLocale(), css::i18n::WordType::ANYWORD_IGNOREWHITESPACES );
+            // #i63506# startPos is -1 when the paragraph starts with a tab
+            aEndPaM.GetIndex() = std::max<sal_Int32>(aBoundary.startPos, 0);
+        }
+        else    // DELMODE_RESTOFCONTENT
+        {
+            if ( aEndPaM.GetIndex() != 0 )
+                aEndPaM.GetIndex() = 0;
+            else if ( aEndPaM.GetPara() )
+            {
+                // previous paragraph
+                aEndPaM.GetPara()--;
+                aEndPaM.GetIndex() = 0;
+            }
+        }
+    }
+    else
+    {
+        if ( nDelMode == DELMODE_SIMPLE )
+        {
+            aEndPaM = CursorRight( aEndPaM, sal_uInt16(css::i18n::CharacterIteratorMode::SKIPCELL) );
+        }
+        else if ( nDelMode == DELMODE_RESTOFWORD )
+        {
+            TextNode* pNode = mpImpl->mpTextEngine->mpDoc->GetNodes()[  aEndPaM.GetPara() ].get();
+            css::uno::Reference < css::i18n::XBreakIterator > xBI = mpImpl->mpTextEngine->GetBreakIterator();
+            css::i18n::Boundary aBoundary = xBI->nextWord( pNode->GetText(), mpImpl->maSelection.GetEnd().GetIndex(), mpImpl->mpTextEngine->GetLocale(), css::i18n::WordType::ANYWORD_IGNOREWHITESPACES );
+            aEndPaM.GetIndex() = aBoundary.startPos;
+        }
+        else    // DELMODE_RESTOFCONTENT
+        {
+            TextNode* pNode = mpImpl->mpTextEngine->mpDoc->GetNodes()[ aEndPaM.GetPara() ].get();
+            if ( aEndPaM.GetIndex() < pNode->GetText().getLength() )
+                aEndPaM.GetIndex() = pNode->GetText().getLength();
+            else if ( aEndPaM.GetPara() < ( mpImpl->mpTextEngine->mpDoc->GetNodes().size() - 1 ) )
+            {
+                // next paragraph
+                aEndPaM.GetPara()++;
+                TextNode* pNextNode = mpImpl->mpTextEngine->mpDoc->GetNodes()[ aEndPaM.GetPara() ].get();
+                aEndPaM.GetIndex() = pNextNode->GetText().getLength();
+            }
+        }
+    }
+
+    return mpImpl->mpTextEngine->ImpDeleteText( TextSelection( aStartPaM, aEndPaM ) );
+}
+
+TextPaM TextView::CursorUp( const TextPaM& rPaM )
+{
+    TextPaM aPaM( rPaM );
+
+    tools::Long nX;
+    if ( mpImpl->mnTravelXPos == TRAVEL_X_DONTKNOW )
+    {
+        nX = mpImpl->mpTextEngine->GetEditCursor( rPaM, false ).Left();
+        mpImpl->mnTravelXPos = static_cast<sal_uInt16>(nX)+1;
+    }
+    else
+        nX = mpImpl->mnTravelXPos;
+
+    TEParaPortion* pPPortion = mpImpl->mpTextEngine->mpTEParaPortions->GetObject( rPaM.GetPara() );
+    std::vector<TextLine>::size_type nLine = pPPortion->GetLineNumber( rPaM.GetIndex(), false );
+    if ( nLine )    // same paragraph
+    {
+        aPaM.GetIndex() = mpImpl->mpTextEngine->GetCharPos( rPaM.GetPara(), nLine-1, nX );
+        // If we need to go to the end of a line that was wrapped automatically,
+        // the cursor ends up at the beginning of the 2nd line
+        // Problem: Last character of an automatically wrapped line = Cursor
+        TextLine& rLine = pPPortion->GetLines()[ nLine - 1 ];
+        if ( aPaM.GetIndex() && ( aPaM.GetIndex() == rLine.GetEnd() ) )
+            --aPaM.GetIndex();
+    }
+    else if ( rPaM.GetPara() )  // previous paragraph
+    {
+        aPaM.GetPara()--;
+        pPPortion = mpImpl->mpTextEngine->mpTEParaPortions->GetObject( aPaM.GetPara() );
+        std::vector<TextLine>::size_type nL = pPPortion->GetLines().size() - 1;
+        aPaM.GetIndex() = mpImpl->mpTextEngine->GetCharPos( aPaM.GetPara(), nL, nX+1 );
+    }
+
+    return aPaM;
+}
+
+TextPaM TextView::CursorDown( const TextPaM& rPaM )
+{
+    TextPaM aPaM( rPaM );
+
+    tools::Long nX;
+    if ( mpImpl->mnTravelXPos == TRAVEL_X_DONTKNOW )
+    {
+        nX = mpImpl->mpTextEngine->GetEditCursor( rPaM, false ).Left();
+        mpImpl->mnTravelXPos = static_cast<sal_uInt16>(nX)+1;
+    }
+    else
+        nX = mpImpl->mnTravelXPos;
+
+    TEParaPortion* pPPortion = mpImpl->mpTextEngine->mpTEParaPortions->GetObject( rPaM.GetPara() );
+    std::vector<TextLine>::size_type nLine = pPPortion->GetLineNumber( rPaM.GetIndex(), false );
+    if ( nLine < ( pPPortion->GetLines().size() - 1 ) )
+    {
+        aPaM.GetIndex() = mpImpl->mpTextEngine->GetCharPos( rPaM.GetPara(), nLine+1, nX );
+
+        // special case CursorUp
+        TextLine& rLine = pPPortion->GetLines()[ nLine + 1 ];
+        if ( ( aPaM.GetIndex() == rLine.GetEnd() ) && ( aPaM.GetIndex() > rLine.GetStart() ) && aPaM.GetIndex() < pPPortion->GetNode()->GetText().getLength() )
+            --aPaM.GetIndex();
+    }
+    else if ( rPaM.GetPara() < ( mpImpl->mpTextEngine->mpDoc->GetNodes().size() - 1 ) )   // next paragraph
+    {
+        aPaM.GetPara()++;
+        pPPortion = mpImpl->mpTextEngine->mpTEParaPortions->GetObject( aPaM.GetPara() );
+        aPaM.GetIndex() = mpImpl->mpTextEngine->GetCharPos( aPaM.GetPara(), 0, nX+1 );
+        TextLine& rLine = pPPortion->GetLines().front();
+        if ( ( aPaM.GetIndex() == rLine.GetEnd() ) && ( aPaM.GetIndex() > rLine.GetStart() ) && ( pPPortion->GetLines().size() > 1 ) )
+            --aPaM.GetIndex();
+    }
+
+    return aPaM;
+}
+
+TextPaM TextView::CursorStartOfLine( const TextPaM& rPaM )
+{
+    TextPaM aPaM( rPaM );
+
+    TEParaPortion* pPPortion = mpImpl->mpTextEngine->mpTEParaPortions->GetObject( rPaM.GetPara() );
+    std::vector<TextLine>::size_type nLine = pPPortion->GetLineNumber( aPaM.GetIndex(), false );
+    TextLine& rLine = pPPortion->GetLines()[ nLine ];
+    aPaM.GetIndex() = rLine.GetStart();
+
+    return aPaM;
+}
+
+TextPaM TextView::CursorEndOfLine( const TextPaM& rPaM )
+{
+    TextPaM aPaM( rPaM );
+
+    TEParaPortion* pPPortion = mpImpl->mpTextEngine->mpTEParaPortions->GetObject( rPaM.GetPara() );
+    std::vector<TextLine>::size_type nLine = pPPortion->GetLineNumber( aPaM.GetIndex(), false );
+    TextLine& rLine = pPPortion->GetLines()[ nLine ];
+    aPaM.GetIndex() = rLine.GetEnd();
+
+    if ( rLine.GetEnd() > rLine.GetStart() )  // empty line
+    {
+        sal_Unicode cLastChar = pPPortion->GetNode()->GetText()[ aPaM.GetIndex()-1 ];
+        if ( ( cLastChar == ' ' ) && ( aPaM.GetIndex() != pPPortion->GetNode()->GetText().getLength() ) )
+        {
+            // for a blank in an automatically-wrapped line it is better to stand before it,
+            // as the user will intend to stand behind the prior word.
+            // If there is a change, special case for Pos1 after End!
+            --aPaM.GetIndex();
+        }
+    }
+    return aPaM;
+}
+
+TextPaM TextView::CursorStartOfParagraph( const TextPaM& rPaM )
+{
+    TextPaM aPaM( rPaM );
+    aPaM.GetIndex() = 0;
+    return aPaM;
+}
+
+TextPaM TextView::CursorEndOfParagraph( const TextPaM& rPaM )
+{
+    TextNode* pNode = mpImpl->mpTextEngine->mpDoc->GetNodes()[ rPaM.GetPara() ].get();
+    TextPaM aPaM( rPaM );
+    aPaM.GetIndex() = pNode->GetText().getLength();
+    return aPaM;
+}
+
+TextPaM TextView::CursorStartOfDoc()
+{
+    TextPaM aPaM( 0, 0 );
+    return aPaM;
+}
+
+TextPaM TextView::CursorEndOfDoc()
+{
+    const sal_uInt32 nNode = static_cast<sal_uInt32>(mpImpl->mpTextEngine->mpDoc->GetNodes().size() - 1);
+    TextNode* pNode = mpImpl->mpTextEngine->mpDoc->GetNodes()[ nNode ].get();
+    TextPaM aPaM( nNode, pNode->GetText().getLength() );
+    return aPaM;
+}
+
+TextPaM TextView::PageUp( const TextPaM& rPaM )
+{
+    tools::Rectangle aRect = mpImpl->mpTextEngine->PaMtoEditCursor( rPaM );
+    Point aTopLeft = aRect.TopLeft();
+    aTopLeft.AdjustY( -(mpImpl->mpWindow->GetOutputSizePixel().Height() * 9/10) );
+    aTopLeft.AdjustX(1 );
+    if ( aTopLeft.Y() < 0 )
+        aTopLeft.setY( 0 );
+
+    TextPaM aPaM = mpImpl->mpTextEngine->GetPaM( aTopLeft );
+    return aPaM;
+}
+
+TextPaM TextView::PageDown( const TextPaM& rPaM )
+{
+    tools::Rectangle aRect = mpImpl->mpTextEngine->PaMtoEditCursor( rPaM );
+    Point aBottomRight = aRect.BottomRight();
+    aBottomRight.AdjustY(mpImpl->mpWindow->GetOutputSizePixel().Height() * 9/10 );
+    aBottomRight.AdjustX(1 );
+    tools::Long nHeight = mpImpl->mpTextEngine->GetTextHeight();
+    if ( aBottomRight.Y() > nHeight )
+        aBottomRight.setY( nHeight-1 );
+
+    TextPaM aPaM = mpImpl->mpTextEngine->GetPaM( aBottomRight );
+    return aPaM;
+}
+
+void TextView::ImpShowCursor( bool bGotoCursor, bool bForceVisCursor, bool bSpecial )
+{
+    if ( mpImpl->mpTextEngine->IsFormatting() )
+        return;
+    if ( !mpImpl->mpTextEngine->GetUpdateMode() )
+        return;
+    if ( mpImpl->mpTextEngine->IsInUndo() )
+        return;
+
+    mpImpl->mpTextEngine->CheckIdleFormatter();
+    if ( !mpImpl->mpTextEngine->IsFormatted() )
+        mpImpl->mpTextEngine->FormatAndUpdate( this );
+
+    TextPaM aPaM( mpImpl->maSelection.GetEnd() );
+    tools::Rectangle aEditCursor = mpImpl->mpTextEngine->PaMtoEditCursor( aPaM, bSpecial );
+
+    // Remember that we placed the cursor behind the last character of a line
+    mpImpl->mbCursorAtEndOfLine = false;
+    if( bSpecial )
+    {
+        TEParaPortion* pParaPortion = mpImpl->mpTextEngine->mpTEParaPortions->GetObject( aPaM.GetPara() );
+        mpImpl->mbCursorAtEndOfLine =
+            pParaPortion->GetLineNumber( aPaM.GetIndex(), true ) != pParaPortion->GetLineNumber( aPaM.GetIndex(), false );
+    }
+
+    if ( !IsInsertMode() && !mpImpl->maSelection.HasRange() )
+    {
+        TextNode* pNode = mpImpl->mpTextEngine->mpDoc->GetNodes()[ aPaM.GetPara() ].get();
+        if ( !pNode->GetText().isEmpty() && ( aPaM.GetIndex() < pNode->GetText().getLength() ) )
+        {
+            // If we are behind a portion, and the next portion has other direction, we must change position...
+            aEditCursor.SetLeft( mpImpl->mpTextEngine->GetEditCursor( aPaM, false, true ).Left() );
+            aEditCursor.SetRight( aEditCursor.Left() );
+
+            TEParaPortion* pParaPortion = mpImpl->mpTextEngine->mpTEParaPortions->GetObject( aPaM.GetPara() );
+
+            sal_Int32 nTextPortionStart = 0;
+            std::size_t nTextPortion = pParaPortion->GetTextPortions().FindPortion( aPaM.GetIndex(), nTextPortionStart, true );
+            TETextPortion& rTextPortion = pParaPortion->GetTextPortions()[ nTextPortion ];
+            if ( rTextPortion.GetKind() == PORTIONKIND_TAB )
+            {
+                aEditCursor.AdjustRight(rTextPortion.GetWidth() );
+            }
+            else
+            {
+                TextPaM aNext = CursorRight( TextPaM( aPaM.GetPara(), aPaM.GetIndex() ), sal_uInt16(css::i18n::CharacterIteratorMode::SKIPCELL) );
+                aEditCursor.SetRight( mpImpl->mpTextEngine->GetEditCursor( aNext, true ).Left() );
+            }
+        }
+    }
+
+    Size aOutSz = mpImpl->mpWindow->GetOutputSizePixel();
+    if ( aEditCursor.GetHeight() > aOutSz.Height() )
+        aEditCursor.SetBottom( aEditCursor.Top() + aOutSz.Height() - 1 );
+
+    aEditCursor.AdjustLeft( -1 );
+
+    if ( bGotoCursor
+        // #i81283# protect maStartDocPos against initialization problems
+        && aOutSz.Width() && aOutSz.Height()
+    )
+    {
+        tools::Long nVisStartY = mpImpl->maStartDocPos.Y();
+        tools::Long nVisEndY = mpImpl->maStartDocPos.Y() + aOutSz.Height();
+        tools::Long nVisStartX = mpImpl->maStartDocPos.X();
+        tools::Long nVisEndX = mpImpl->maStartDocPos.X() + aOutSz.Width();
+        tools::Long nMoreX = aOutSz.Width() / 4;
+
+        Point aNewStartPos( mpImpl->maStartDocPos );
+
+        if ( aEditCursor.Bottom() > nVisEndY )
+        {
+            aNewStartPos.AdjustY( aEditCursor.Bottom() - nVisEndY);
+        }
+        else if ( aEditCursor.Top() < nVisStartY )
+        {
+            aNewStartPos.AdjustY( -( nVisStartY - aEditCursor.Top() ) );
+        }
+
+        if ( aEditCursor.Right() >= nVisEndX )
+        {
+            aNewStartPos.AdjustX( aEditCursor.Right() - nVisEndX );
+
+            // do you want some more?
+            aNewStartPos.AdjustX(nMoreX );
+        }
+        else if ( aEditCursor.Left() <= nVisStartX )
+        {
+            aNewStartPos.AdjustX( -( nVisStartX - aEditCursor.Left() ) );
+
+            // do you want some more?
+            aNewStartPos.AdjustX( -nMoreX );
+        }
+
+        // X can be wrong for the 'some more' above:
+//      sal_uLong nMaxTextWidth = mpImpl->mpTextEngine->GetMaxTextWidth();
+//      if ( !nMaxTextWidth || ( nMaxTextWidth > 0x7FFFFFFF ) )
+//          nMaxTextWidth = 0x7FFFFFFF;
+//      long nMaxX = (long)nMaxTextWidth - aOutSz.Width();
+        tools::Long nMaxX = mpImpl->mpTextEngine->CalcTextWidth() - aOutSz.Width();
+        if ( nMaxX < 0 )
+            nMaxX = 0;
+
+        if ( aNewStartPos.X() < 0 )
+            aNewStartPos.setX( 0 );
+        else if ( aNewStartPos.X() > nMaxX )
+            aNewStartPos.setX( nMaxX );
+
+        // Y should not be further down than needed
+        tools::Long nYMax = mpImpl->mpTextEngine->GetTextHeight() - aOutSz.Height();
+        if ( nYMax < 0 )
+            nYMax = 0;
+        if ( aNewStartPos.Y() > nYMax )
+            aNewStartPos.setY( nYMax );
+
+        if ( aNewStartPos != mpImpl->maStartDocPos )
+            Scroll( -(aNewStartPos.X() - mpImpl->maStartDocPos.X()), -(aNewStartPos.Y() - mpImpl->maStartDocPos.Y()) );
+    }
+
+    if ( aEditCursor.Right() < aEditCursor.Left() )
+    {
+        tools::Long n = aEditCursor.Left();
+        aEditCursor.SetLeft( aEditCursor.Right() );
+        aEditCursor.SetRight( n );
+    }
+
+    Point aPoint( GetWindowPos( !mpImpl->mpTextEngine->IsRightToLeft() ? aEditCursor.TopLeft() : aEditCursor.TopRight() ) );
+    mpImpl->mpCursor->SetPos( aPoint );
+    mpImpl->mpCursor->SetSize( aEditCursor.GetSize() );
+    if ( bForceVisCursor && mpImpl->mbCursorEnabled )
+        mpImpl->mpCursor->Show();
+}
+
+void TextView::SetCursorAtPoint( const Point& rPosPixel )
+{
+    mpImpl->mpTextEngine->CheckIdleFormatter();
+
+    Point aDocPos = GetDocPos( rPosPixel );
+
+    TextPaM aPaM = mpImpl->mpTextEngine->GetPaM( aDocPos );
+
+    // aTmpNewSel: Diff between old and new; not the new selection
+    TextSelection aTmpNewSel( mpImpl->maSelection.GetEnd(), aPaM );
+    TextSelection aNewSel( mpImpl->maSelection );
+    aNewSel.GetEnd() = aPaM;
+
+    if ( !mpImpl->mpSelEngine->HasAnchor() )
+    {
+        if ( mpImpl->maSelection.GetStart() != aPaM )
+            mpImpl->mpTextEngine->CursorMoved( mpImpl->maSelection.GetStart().GetPara() );
+        aNewSel.GetStart() = aPaM;
+        ImpSetSelection( aNewSel );
+    }
+    else
+    {
+        ImpSetSelection( aNewSel );
+        ShowSelection( aTmpNewSel );
+    }
+
+    bool bForceCursor = !mpImpl->mpDDInfo; // && !mbInSelection
+    ImpShowCursor( mpImpl->mbAutoScroll, bForceCursor, false );
+}
+
+bool TextView::IsSelectionAtPoint( const Point& rPosPixel )
+{
+    Point aDocPos = GetDocPos( rPosPixel );
+    TextPaM aPaM = mpImpl->mpTextEngine->GetPaM( aDocPos );
+    // BeginDrag is only called, however, if IsSelectionAtPoint()
+    // Problem: IsSelectionAtPoint is not called by Command()
+    // if before MBDown returned false.
+    return IsInSelection( aPaM );
+}
+
+bool TextView::IsInSelection( const TextPaM& rPaM ) const
+{
+    TextSelection aSel = mpImpl->maSelection;
+    aSel.Justify();
+
+    const sal_uInt32 nStartNode = aSel.GetStart().GetPara();
+    const sal_uInt32 nEndNode = aSel.GetEnd().GetPara();
+    const sal_uInt32 nCurNode = rPaM.GetPara();
+
+    if ( ( nCurNode > nStartNode ) && ( nCurNode < nEndNode ) )
+        return true;
+
+    if ( nStartNode == nEndNode )
+    {
+        if ( nCurNode == nStartNode )
+            if ( ( rPaM.GetIndex() >= aSel.GetStart().GetIndex() ) && ( rPaM.GetIndex() < aSel.GetEnd().GetIndex() ) )
+                return true;
+    }
+    else if ( ( nCurNode == nStartNode ) && ( rPaM.GetIndex() >= aSel.GetStart().GetIndex() ) )
+        return true;
+    else if ( ( nCurNode == nEndNode ) && ( rPaM.GetIndex() < aSel.GetEnd().GetIndex() ) )
+        return true;
+
+    return false;
+}
+
+void TextView::ImpHideDDCursor()
+{
+    if ( mpImpl->mpDDInfo && mpImpl->mpDDInfo->mbVisCursor )
+    {
+        mpImpl->mpDDInfo->maCursor.Hide();
+        mpImpl->mpDDInfo->mbVisCursor = false;
+    }
+}
+
+void TextView::ImpShowDDCursor()
+{
+    if ( !mpImpl->mpDDInfo->mbVisCursor )
+    {
+        tools::Rectangle aCursor = mpImpl->mpTextEngine->PaMtoEditCursor( mpImpl->mpDDInfo->maDropPos, true );
+        aCursor.AdjustRight( 1 );
+        aCursor.SetPos( GetWindowPos( aCursor.TopLeft() ) );
+
+        mpImpl->mpDDInfo->maCursor.SetWindow( mpImpl->mpWindow );
+        mpImpl->mpDDInfo->maCursor.SetPos( aCursor.TopLeft() );
+        mpImpl->mpDDInfo->maCursor.SetSize( aCursor.GetSize() );
+        mpImpl->mpDDInfo->maCursor.Show();
+        mpImpl->mpDDInfo->mbVisCursor = true;
+    }
+}
+
+void TextView::SetPaintSelection( bool bPaint )
+{
+    if ( bPaint != mpImpl->mbPaintSelection )
+    {
+        mpImpl->mbPaintSelection = bPaint;
+        ShowSelection( mpImpl->maSelection );
+    }
+}
+
+void TextView::Read( SvStream& rInput )
+{
+    mpImpl->mpTextEngine->Read( rInput, &mpImpl->maSelection );
+    ShowCursor();
+}
+
+bool TextView::ImplTruncateNewText( OUString& rNewText ) const
+{
+    bool bTruncated = false;
+
+    const sal_Int32 nMaxLen = mpImpl->mpTextEngine->GetMaxTextLen();
+    // 0 means unlimited
+    if( nMaxLen != 0 )
+    {
+        const sal_Int32 nCurLen = mpImpl->mpTextEngine->GetTextLen();
+
+        const sal_Int32 nNewLen = rNewText.getLength();
+        if ( nCurLen + nNewLen > nMaxLen )
+        {
+            // see how much text will be replaced
+            const sal_Int32 nSelLen = mpImpl->mpTextEngine->GetTextLen( mpImpl->maSelection );
+            if ( nCurLen + nNewLen - nSelLen > nMaxLen )
+            {
+                const sal_Int32 nTruncatedLen = nMaxLen - (nCurLen - nSelLen);
+                rNewText = rNewText.copy( 0, nTruncatedLen );
+                bTruncated = true;
+            }
+        }
+    }
+    return bTruncated;
+}
+
+bool TextView::ImplCheckTextLen( const OUString& rNewText ) const
+{
+    bool bOK = true;
+    if ( mpImpl->mpTextEngine->GetMaxTextLen() )
+    {
+        sal_Int32 n = mpImpl->mpTextEngine->GetTextLen() + rNewText.getLength();
+        if ( n > mpImpl->mpTextEngine->GetMaxTextLen() )
+        {
+            // calculate how much text is being deleted
+            n -= mpImpl->mpTextEngine->GetTextLen( mpImpl->maSelection );
+            if ( n > mpImpl->mpTextEngine->GetMaxTextLen() )
+                bOK = false;
+        }
+    }
+    return bOK;
+}
+
+void TextView::dragGestureRecognized( const css::datatransfer::dnd::DragGestureEvent& rDGE )
+{
+    if ( !mpImpl->mbClickedInSelection )
+        return;
+
+    SolarMutexGuard aVclGuard;
+
+    SAL_WARN_IF( !mpImpl->maSelection.HasRange(), "vcl", "TextView::dragGestureRecognized: mpImpl->mbClickedInSelection, but no selection?" );
+
+    mpImpl->mpDDInfo.reset(new TextDDInfo);
+    mpImpl->mpDDInfo->mbStarterOfDD = true;
+
+    rtl::Reference<TETextDataObject> pDataObj = new TETextDataObject( GetSelected() );
+
+    mpImpl->mpCursor->Hide();
+
+    sal_Int8 nActions = css::datatransfer::dnd::DNDConstants::ACTION_COPY;
+    if ( !IsReadOnly() )
+        nActions |= css::datatransfer::dnd::DNDConstants::ACTION_MOVE;
+    rDGE.DragSource->startDrag( rDGE, nActions, 0 /*cursor*/, 0 /*image*/, pDataObj, mpImpl->mxDnDListener );
+}
+
+void TextView::dragDropEnd( const css::datatransfer::dnd::DragSourceDropEvent& )
+{
+    ImpHideDDCursor();
+    mpImpl->mpDDInfo.reset();
+}
+
+void TextView::drop( const css::datatransfer::dnd::DropTargetDropEvent& rDTDE )
+{
+    SolarMutexGuard aVclGuard;
+
+    if ( !mpImpl->mbReadOnly && mpImpl->mpDDInfo )
+    {
+        ImpHideDDCursor();
+
+        // Data for deleting after DROP_MOVE:
+        TextSelection aPrevSel( mpImpl->maSelection );
+        aPrevSel.Justify();
+        const sal_uInt32 nPrevParaCount = mpImpl->mpTextEngine->GetParagraphCount();
+        const sal_Int32 nPrevStartParaLen = mpImpl->mpTextEngine->GetTextLen( aPrevSel.GetStart().GetPara() );
+
+        bool bStarterOfDD = false;
+        for ( sal_uInt16 nView = mpImpl->mpTextEngine->GetViewCount(); nView && !bStarterOfDD; )
+            bStarterOfDD = mpImpl->mpTextEngine->GetView( --nView )->mpImpl->mpDDInfo && mpImpl->mpTextEngine->GetView( nView )->mpImpl->mpDDInfo->mbStarterOfDD;
+
+        HideSelection();
+        ImpSetSelection( mpImpl->mpDDInfo->maDropPos );
+
+        mpImpl->mpTextEngine->UndoActionStart();
+
+        OUString aText;
+        css::uno::Reference< css::datatransfer::XTransferable > xDataObj = rDTDE.Transferable;
+        if ( xDataObj.is() )
+        {
+            css::datatransfer::DataFlavor aFlavor;
+            SotExchange::GetFormatDataFlavor( SotClipboardFormatId::STRING, aFlavor );
+            if ( xDataObj->isDataFlavorSupported( aFlavor ) )
+            {
+                css::uno::Any aData = xDataObj->getTransferData( aFlavor );
+                OUString aOUString;
+                aData >>= aOUString;
+                aText = convertLineEnd(aOUString, LINEEND_LF);
+            }
+        }
+
+        if ( !aText.isEmpty() && ( aText[ aText.getLength()-1 ] == LINE_SEP ) )
+            aText = aText.copy(0, aText.getLength()-1);
+
+        if ( ImplCheckTextLen( aText ) )
+            ImpSetSelection( mpImpl->mpTextEngine->ImpInsertText( mpImpl->mpDDInfo->maDropPos, aText ) );
+
+        if ( aPrevSel.HasRange() &&
+                (( rDTDE.DropAction & css::datatransfer::dnd::DNDConstants::ACTION_MOVE ) || !bStarterOfDD) )
+        {
+            // adjust selection if necessary
+            if ( ( mpImpl->mpDDInfo->maDropPos.GetPara() < aPrevSel.GetStart().GetPara() ) ||
+                 ( ( mpImpl->mpDDInfo->maDropPos.GetPara() == aPrevSel.GetStart().GetPara() )
+                        && ( mpImpl->mpDDInfo->maDropPos.GetIndex() < aPrevSel.GetStart().GetIndex() ) ) )
+            {
+                const sal_uInt32 nNewParasBeforeSelection =
+                    mpImpl->mpTextEngine->GetParagraphCount() - nPrevParaCount;
+
+                aPrevSel.GetStart().GetPara() += nNewParasBeforeSelection;
+                aPrevSel.GetEnd().GetPara() += nNewParasBeforeSelection;
+
+                if ( mpImpl->mpDDInfo->maDropPos.GetPara() == aPrevSel.GetStart().GetPara() )
+                {
+                    const sal_Int32 nNewChars =
+                        mpImpl->mpTextEngine->GetTextLen( aPrevSel.GetStart().GetPara() ) - nPrevStartParaLen;
+
+                    aPrevSel.GetStart().GetIndex() += nNewChars;
+                    if ( aPrevSel.GetStart().GetPara() == aPrevSel.GetEnd().GetPara() )
+                        aPrevSel.GetEnd().GetIndex() += nNewChars;
+                }
+            }
+            else
+            {
+                // adjust current selection
+                TextPaM aPaM = mpImpl->maSelection.GetStart();
+                aPaM.GetPara() -= ( aPrevSel.GetEnd().GetPara() - aPrevSel.GetStart().GetPara() );
+                if ( aPrevSel.GetEnd().GetPara() == mpImpl->mpDDInfo->maDropPos.GetPara() )
+                {
+                    aPaM.GetIndex() -= aPrevSel.GetEnd().GetIndex();
+                    if ( aPrevSel.GetStart().GetPara() == mpImpl->mpDDInfo->maDropPos.GetPara() )
+                        aPaM.GetIndex() += aPrevSel.GetStart().GetIndex();
+                }
+                ImpSetSelection( aPaM );
+
+            }
+            mpImpl->mpTextEngine->ImpDeleteText( aPrevSel );
+        }
+
+        mpImpl->mpTextEngine->UndoActionEnd();
+
+        mpImpl->mpDDInfo.reset();
+
+        mpImpl->mpTextEngine->FormatAndUpdate( this );
+
+        mpImpl->mpTextEngine->Broadcast( TextHint( SfxHintId::TextModified ) );
+    }
+    rDTDE.Context->dropComplete( false/*bChanges*/ );
+}
+
+void TextView::dragEnter( const css::datatransfer::dnd::DropTargetDragEnterEvent& )
+{
+}
+
+void TextView::dragExit( const css::datatransfer::dnd::DropTargetEvent& )
+{
+    SolarMutexGuard aVclGuard;
+    ImpHideDDCursor();
+}
+
+void TextView::dragOver( const css::datatransfer::dnd::DropTargetDragEvent& rDTDE )
+{
+    SolarMutexGuard aVclGuard;
+
+    if (!mpImpl->mpDDInfo)
+        mpImpl->mpDDInfo.reset(new TextDDInfo);
+
+    TextPaM aPrevDropPos = mpImpl->mpDDInfo->maDropPos;
+    Point aMousePos( rDTDE.LocationX, rDTDE.LocationY );
+    Point aDocPos = GetDocPos( aMousePos );
+    mpImpl->mpDDInfo->maDropPos = mpImpl->mpTextEngine->GetPaM( aDocPos );
+
+    // Don't drop in selection or in read only engine
+    if ( IsReadOnly() || IsInSelection( mpImpl->mpDDInfo->maDropPos ))
+    {
+        ImpHideDDCursor();
+        rDTDE.Context->rejectDrag();
+    }
+    else
+    {
+        // delete old Cursor
+        if ( !mpImpl->mpDDInfo->mbVisCursor || ( aPrevDropPos != mpImpl->mpDDInfo->maDropPos ) )
+        {
+            ImpHideDDCursor();
+            ImpShowDDCursor();
+        }
+        rDTDE.Context->acceptDrag( rDTDE.DropAction );
+    }
+}
+
+Point TextView::ImpGetOutputStartPos( const Point& rStartDocPos ) const
+{
+    Point aStartPos( -rStartDocPos.X(), -rStartDocPos.Y() );
+    if ( mpImpl->mpTextEngine->IsRightToLeft() )
+    {
+        Size aSz = mpImpl->mpWindow->GetOutputSizePixel();
+        aStartPos.setX( rStartDocPos.X() + aSz.Width() - 1 ); // -1: Start is 0
+    }
+    return aStartPos;
+}
+
+Point TextView::GetDocPos( const Point& rWindowPos ) const
+{
+    // Window Position => Document Position
+
+    Point aPoint;
+
+    aPoint.setY( rWindowPos.Y() + mpImpl->maStartDocPos.Y() );
+
+    if ( !mpImpl->mpTextEngine->IsRightToLeft() )
+    {
+        aPoint.setX( rWindowPos.X() + mpImpl->maStartDocPos.X() );
+    }
+    else
+    {
+        Size aSz = mpImpl->mpWindow->GetOutputSizePixel();
+        aPoint.setX( ( aSz.Width() - 1 ) - rWindowPos.X() + mpImpl->maStartDocPos.X() );
+    }
+
+    return aPoint;
+}
+
+Point TextView::GetWindowPos( const Point& rDocPos ) const
+{
+    // Document Position => Window Position
+
+    Point aPoint;
+
+    aPoint.setY( rDocPos.Y() - mpImpl->maStartDocPos.Y() );
+
+    if ( !mpImpl->mpTextEngine->IsRightToLeft() )
+    {
+        aPoint.setX( rDocPos.X() - mpImpl->maStartDocPos.X() );
+    }
+    else
+    {
+        Size aSz = mpImpl->mpWindow->GetOutputSizePixel();
+        aPoint.setX( ( aSz.Width() - 1 ) - ( rDocPos.X() - mpImpl->maStartDocPos.X() ) );
+    }
+
+    return aPoint;
+}
+
+sal_Int32 TextView::GetLineNumberOfCursorInSelection() const
+{
+ // PROGRESS
+    sal_Int32 nLineNo = -1;
+    if( mpImpl->mbCursorEnabled )
+    {
+        TextPaM aPaM = GetSelection().GetEnd();
+        TEParaPortion* pPPortion = mpImpl->mpTextEngine->mpTEParaPortions->GetObject( aPaM.GetPara() );
+        nLineNo = pPPortion->GetLineNumber( aPaM.GetIndex(), false );
+            //TODO: std::vector<TextLine>::size_type -> sal_Int32!
+        if( mpImpl->mbCursorAtEndOfLine )
+            --nLineNo;
+    }
+    return nLineNo;
+}
+
+// (+) class TextSelFunctionSet
+
+TextSelFunctionSet::TextSelFunctionSet( TextView* pView )
+{
+    mpView = pView;
+}
+
+void TextSelFunctionSet::BeginDrag()
+{
+}
+
+void TextSelFunctionSet::CreateAnchor()
+{
+//  TextSelection aSel( mpView->GetSelection() );
+//  aSel.GetStart() = aSel.GetEnd();
+//  mpView->SetSelection( aSel );
+
+    // may not be followed by ShowCursor
+    mpView->HideSelection();
+    mpView->ImpSetSelection( mpView->mpImpl->maSelection.GetEnd() );
+}
+
+void TextSelFunctionSet::SetCursorAtPoint( const Point& rPointPixel, bool )
+{
+    mpView->SetCursorAtPoint( rPointPixel );
+}
+
+bool TextSelFunctionSet::IsSelectionAtPoint( const Point& rPointPixel )
+{
+    return mpView->IsSelectionAtPoint( rPointPixel );
+}
+
+void TextSelFunctionSet::DeselectAll()
+{
+    CreateAnchor();
+}
+
+void TextSelFunctionSet::DeselectAtPoint( const Point& )
+{
+    // only for multiple selection
+}
+
+void TextSelFunctionSet::DestroyAnchor()
+{
+    // only for multiple selection
+}
+TextEngine*         TextView::GetTextEngine() const
+{ return mpImpl->mpTextEngine; }
+vcl::Window*             TextView::GetWindow() const
+{ return mpImpl->mpWindow; }
+void                TextView::EnableCursor( bool bEnable )
+{ mpImpl->mbCursorEnabled = bEnable; }
+bool                TextView::IsCursorEnabled() const
+{ return mpImpl->mbCursorEnabled; }
+void                TextView::SetStartDocPos( const Point& rPos )
+{ mpImpl->maStartDocPos = rPos; }
+const Point&        TextView::GetStartDocPos() const
+{ return mpImpl->maStartDocPos; }
+void                TextView::SetAutoIndentMode( bool bAutoIndent )
+{ mpImpl->mbAutoIndent = bAutoIndent; }
+bool                TextView::IsReadOnly() const
+{ return mpImpl->mbReadOnly; }
+void                TextView::SetAutoScroll( bool bAutoScroll )
+{ mpImpl->mbAutoScroll = bAutoScroll; }
+bool                TextView::IsAutoScroll() const
+{ return mpImpl->mbAutoScroll; }
+bool                TextView::HasSelection() const
+{ return mpImpl->maSelection.HasRange(); }
+bool                TextView::IsInsertMode() const
+{ return mpImpl->mbInsertMode; }
+
+void TextView::MatchGroup()
+{
+    TextSelection aTmpSel( GetSelection() );
+    aTmpSel.Justify();
+    if ( ( aTmpSel.GetStart().GetPara() != aTmpSel.GetEnd().GetPara() ) ||
+         ( ( aTmpSel.GetEnd().GetIndex() - aTmpSel.GetStart().GetIndex() ) > 1 ) )
+    {
+        return;
+    }
+
+    TextSelection aMatchSel = static_cast<ExtTextEngine*>(GetTextEngine())->MatchGroup( aTmpSel.GetStart() );
+    if ( aMatchSel.HasRange() )
+        SetSelection( aMatchSel );
+}
+
+void TextView::CenterPaM( const TextPaM& rPaM )
+{
+    // Get textview size and the corresponding y-coordinates
+    Size aOutSz = mpImpl->mpWindow->GetOutputSizePixel();
+    tools::Long nVisStartY = mpImpl->maStartDocPos.Y();
+    tools::Long nVisEndY = mpImpl->maStartDocPos.Y() + aOutSz.Height();
+
+    // Retrieve the coordinates of the PaM
+    tools::Rectangle aRect = mpImpl->mpTextEngine->PaMtoEditCursor(rPaM);
+
+    // Recalculate the offset of the center y-coordinates and scroll
+    Scroll(0, (nVisStartY + nVisEndY) / 2 - aRect.TopLeft().getY());
+}
+
+bool TextView::Search( const i18nutil::SearchOptions& rSearchOptions, bool bForward )
+{
+    bool bFound = false;
+    TextSelection aSel( GetSelection() );
+    if ( static_cast<ExtTextEngine*>(GetTextEngine())->Search( aSel, rSearchOptions, bForward ) )
+    {
+        bFound = true;
+        // First add the beginning of the word to the selection,
+        // so that the whole word is in the visible region.
+        SetSelection( aSel.GetStart() );
+        ShowCursor( true, false );
+    }
+    else
+    {
+        aSel = GetSelection().GetEnd();
+    }
+
+    SetSelection( aSel );
+    // tdf#49482: Move the start of the selection to the center of the textview
+    if (bFound)
+    {
+        CenterPaM( aSel.GetStart() );
+    }
+    ShowCursor();
+
+    return bFound;
+}
+
+sal_uInt16 TextView::Replace( const i18nutil::SearchOptions& rSearchOptions, bool bAll, bool bForward )
+{
+    sal_uInt16 nFound = 0;
+
+    if ( !bAll )
+    {
+        if ( GetSelection().HasRange() )
+        {
+            InsertText( rSearchOptions.replaceString );
+            nFound = 1;
+            Search( rSearchOptions, bForward ); // right away to the next
+        }
+        else
+        {
+            if( Search( rSearchOptions, bForward ) )
+                nFound = 1;
+        }
+    }
+    else
+    {
+        // the writer replaces all, from beginning to end
+
+        ExtTextEngine* pTextEngine = static_cast<ExtTextEngine*>(GetTextEngine());
+
+        // HideSelection();
+        TextSelection aSel;
+
+        bool bSearchInSelection = (0 != (rSearchOptions.searchFlag & css::util::SearchFlags::REG_NOT_BEGINOFLINE) );
+        if ( bSearchInSelection )
+        {
+            aSel = GetSelection();
+            aSel.Justify();
+        }
+
+        TextSelection aSearchSel( aSel );
+
+        bool bFound = pTextEngine->Search( aSel, rSearchOptions );
+        if ( bFound )
+            pTextEngine->UndoActionStart();
+        while ( bFound )
+        {
+            nFound++;
+
+            TextPaM aNewStart = pTextEngine->ImpInsertText( aSel, rSearchOptions.replaceString );
+            // tdf#64690 - extend selection to include inserted text portions
+            if ( aSel.GetEnd().GetPara() == aSearchSel.GetEnd().GetPara() )
+            {
+                aSearchSel.GetEnd().GetIndex() += rSearchOptions.replaceString.getLength() - 1;
+            }
+            aSel = aSearchSel;
+            aSel.GetStart() = aNewStart;
+            bFound = pTextEngine->Search( aSel, rSearchOptions );
+        }
+        if ( nFound )
+        {
+            SetSelection( aSel.GetStart() );
+            pTextEngine->FormatAndUpdate( this );
+            pTextEngine->UndoActionEnd();
+        }
+    }
+    return nFound;
+}
+
+bool TextView::ImpIndentBlock( bool bRight )
+{
+    bool bDone = false;
+
+    TextSelection aSel = GetSelection();
+    aSel.Justify();
+
+    HideSelection();
+    GetTextEngine()->UndoActionStart();
+
+    const sal_uInt32 nStartPara = aSel.GetStart().GetPara();
+    sal_uInt32 nEndPara = aSel.GetEnd().GetPara();
+    if ( aSel.HasRange() && !aSel.GetEnd().GetIndex() )
+    {
+        nEndPara--; // do not indent
+    }
+
+    for ( sal_uInt32 nPara = nStartPara; nPara <= nEndPara; ++nPara )
+    {
+        if ( bRight )
+        {
+            // add tabs
+            GetTextEngine()->ImpInsertText( TextPaM( nPara, 0 ), '\t' );
+            bDone = true;
+        }
+        else
+        {
+            // remove Tabs/Blanks
+            OUString aText = GetTextEngine()->GetText( nPara );
+            if ( !aText.isEmpty() && (
+                    ( aText[ 0 ] == '\t' ) ||
+                    ( aText[ 0 ] == ' ' ) ) )
+            {
+                GetTextEngine()->ImpDeleteText( TextSelection( TextPaM( nPara, 0 ), TextPaM( nPara, 1 ) ) );
+                bDone = true;
+            }
+        }
+    }
+
+    GetTextEngine()->UndoActionEnd();
+
+    bool bRange = aSel.HasRange();
+    if ( bRight )
+    {
+        ++aSel.GetStart().GetIndex();
+        if ( bRange && ( aSel.GetEnd().GetPara() == nEndPara ) )
+            ++aSel.GetEnd().GetIndex();
+    }
+    else
+    {
+        if ( aSel.GetStart().GetIndex() )
+            --aSel.GetStart().GetIndex();
+        if ( bRange && aSel.GetEnd().GetIndex() )
+            --aSel.GetEnd().GetIndex();
+    }
+
+    ImpSetSelection( aSel );
+    GetTextEngine()->FormatAndUpdate( this );
+
+    return bDone;
+}
+
+bool TextView::IndentBlock()
+{
+    return ImpIndentBlock( true );
+}
+
+bool TextView::UnindentBlock()
+{
+    return ImpIndentBlock( false );
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/edit/txtattr.cxx b/vcl/source/edit/txtattr.cxx
new file mode 100644
index 000000000..8e979c1e3
--- /dev/null
+++ b/vcl/source/edit/txtattr.cxx
@@ -0,0 +1,93 @@
+/* -*- 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 <vcl/txtattr.hxx>
+#include <vcl/font.hxx>
+
+TextAttrib::~TextAttrib()
+{
+}
+
+bool TextAttrib::operator==( const TextAttrib& rAttr ) const
+{
+    return mnWhich == rAttr.mnWhich;
+}
+
+TextAttribFontColor::TextAttribFontColor( const Color& rColor )
+    : TextAttrib( TEXTATTR_FONTCOLOR ), maColor( rColor )
+{
+}
+
+void TextAttribFontColor::SetFont( vcl::Font& rFont ) const
+{
+    rFont.SetColor( maColor );
+}
+
+std::unique_ptr<TextAttrib> TextAttribFontColor::Clone() const
+{
+    return std::unique_ptr<TextAttrib>(new TextAttribFontColor( *this ));
+}
+
+bool TextAttribFontColor::operator==( const TextAttrib& rAttr ) const
+{
+    return ( ( TextAttrib::operator==(rAttr ) ) &&
+                ( maColor == static_cast<const TextAttribFontColor&>(rAttr).maColor ) );
+}
+
+TextAttribFontWeight::TextAttribFontWeight( FontWeight eWeight )
+    : TextAttrib( TEXTATTR_FONTWEIGHT ), meWeight( eWeight )
+{
+}
+
+void TextAttribFontWeight::SetFont( vcl::Font& rFont ) const
+{
+    rFont.SetWeight( meWeight );
+}
+
+std::unique_ptr<TextAttrib> TextAttribFontWeight::Clone() const
+{
+    return std::unique_ptr<TextAttrib>(new TextAttribFontWeight( *this ));
+}
+
+bool TextAttribFontWeight::operator==( const TextAttrib& rAttr ) const
+{
+    return ( ( TextAttrib::operator==(rAttr ) ) &&
+                ( meWeight == static_cast<const TextAttribFontWeight&>(rAttr).meWeight ) );
+}
+
+TextAttribProtect::TextAttribProtect() :
+    TextAttrib( TEXTATTR_PROTECTED )
+{
+}
+
+void TextAttribProtect::SetFont( vcl::Font& ) const
+{
+}
+
+std::unique_ptr<TextAttrib> TextAttribProtect::Clone() const
+{
+    return std::unique_ptr<TextAttrib>(new TextAttribProtect());
+}
+
+bool TextAttribProtect::operator==( const TextAttrib& rAttr ) const
+{
+    return TextAttrib::operator==(rAttr );
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/edit/vclmedit.cxx b/vcl/source/edit/vclmedit.cxx
new file mode 100644
index 000000000..03ed860bd
--- /dev/null
+++ b/vcl/source/edit/vclmedit.cxx
@@ -0,0 +1,1494 @@
+/* -*- 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 <memory>
+#include <i18nlangtag/languagetag.hxx>
+#include <vcl/commandevent.hxx>
+#include <vcl/builder.hxx>
+#include <vcl/decoview.hxx>
+#include <vcl/event.hxx>
+#include <vcl/menu.hxx>
+#include <vcl/specialchars.hxx>
+#include <vcl/timer.hxx>
+#include <vcl/toolkit/vclmedit.hxx>
+#include <vcl/vclevent.hxx>
+#include <vcl/xtextedt.hxx>
+#include <vcl/textview.hxx>
+#include <vcl/ptrstyle.hxx>
+
+#include <svl/undo.hxx>
+#include <svl/lstner.hxx>
+#include <vcl/uitest/uiobject.hxx>
+
+#include <vcl/scrbar.hxx>
+#include <vcl/settings.hxx>
+#include <vcl/weld.hxx>
+#include <osl/diagnose.h>
+#include <tools/json_writer.hxx>
+
+class ImpVclMEdit : public SfxListener
+{
+private:
+    VclPtr<VclMultiLineEdit>   pVclMultiLineEdit;
+
+    VclPtr<TextWindow>         mpTextWindow;
+    VclPtr<ScrollBar>          mpHScrollBar;
+    VclPtr<ScrollBar>          mpVScrollBar;
+    VclPtr<ScrollBarBox>       mpScrollBox;
+
+    tools::Long                mnTextWidth;
+    mutable Selection   maSelection;
+
+protected:
+    virtual void        Notify( SfxBroadcaster& rBC, const SfxHint& rHint ) override;
+    void                ImpUpdateScrollBarVis( WinBits nWinStyle );
+    void                ImpInitScrollBars();
+    void                ImpSetScrollBarRanges();
+    void                ImpSetHScrollBarThumbPos();
+    DECL_LINK(    ScrollHdl, ScrollBar*, void );
+
+public:
+                ImpVclMEdit( VclMultiLineEdit* pVclMultiLineEdit, WinBits nWinStyle );
+                virtual ~ImpVclMEdit() override;
+
+    void        SetModified( bool bMod );
+
+    void        SetReadOnly( bool bRdOnly );
+    bool        IsReadOnly() const;
+
+    void        SetMaxTextLen(sal_Int32 nLen);
+    sal_Int32   GetMaxTextLen() const;
+
+    void        SetMaxTextWidth(tools::Long nMaxWidth);
+
+    void        InsertText( const OUString& rStr );
+    OUString    GetSelected() const;
+    OUString    GetSelected( LineEnd aSeparator ) const;
+
+    void        SetSelection( const Selection& rSelection );
+    const Selection& GetSelection() const;
+
+    void        Cut();
+    void        Copy();
+    void        Paste();
+
+    void        SetText( const OUString& rStr );
+    OUString    GetText() const;
+    OUString    GetText( LineEnd aSeparator ) const;
+    OUString    GetTextLines( LineEnd aSeparator ) const;
+
+    void        Resize();
+    void        GetFocus();
+
+    bool        HandleCommand( const CommandEvent& rCEvt );
+
+    void        Enable( bool bEnable );
+
+    Size        CalcMinimumSize() const;
+    Size        CalcBlockSize( sal_uInt16 nColumns, sal_uInt16 nLines ) const;
+    void        GetMaxVisColumnsAndLines( sal_uInt16& rnCols, sal_uInt16& rnLines ) const;
+
+    void        SetAlign( WinBits nWinStyle );
+
+    void        InitFromStyle( WinBits nWinStyle );
+
+    TextWindow* GetTextWindow() { return mpTextWindow; }
+    ScrollBar&  GetHScrollBar() { return *mpHScrollBar; }
+    ScrollBar&  GetVScrollBar() { return *mpVScrollBar; }
+};
+
+ImpVclMEdit::ImpVclMEdit( VclMultiLineEdit* pEdt, WinBits nWinStyle )
+    : pVclMultiLineEdit(pEdt)
+    , mpTextWindow(VclPtr<TextWindow>::Create(pEdt))
+    , mpHScrollBar(VclPtr<ScrollBar>::Create(pVclMultiLineEdit, WB_HSCROLL|WB_DRAG))
+    , mpVScrollBar(VclPtr<ScrollBar>::Create(pVclMultiLineEdit, WB_VSCROLL|WB_DRAG))
+    , mpScrollBox(VclPtr<ScrollBarBox>::Create(pVclMultiLineEdit, WB_SIZEABLE))
+    , mnTextWidth(0)
+{
+    mpVScrollBar->SetScrollHdl( LINK( this, ImpVclMEdit, ScrollHdl ) );
+    mpHScrollBar->SetScrollHdl( LINK( this, ImpVclMEdit, ScrollHdl ) );
+    mpTextWindow->Show();
+    InitFromStyle( nWinStyle );
+    StartListening( *mpTextWindow->GetTextEngine() );
+}
+
+void ImpVclMEdit::ImpUpdateScrollBarVis( WinBits nWinStyle )
+{
+    const bool bHaveVScroll = mpVScrollBar->IsVisible();
+    const bool bHaveHScroll = mpHScrollBar->IsVisible();
+    const bool bHaveScrollBox = mpScrollBox->IsVisible();
+
+    bool bNeedVScroll = ( nWinStyle & WB_VSCROLL ) == WB_VSCROLL;
+    const bool bNeedHScroll = ( nWinStyle & WB_HSCROLL ) == WB_HSCROLL;
+
+    const bool bAutoVScroll = ( nWinStyle & WB_AUTOVSCROLL ) == WB_AUTOVSCROLL;
+    if ( !bNeedVScroll && bAutoVScroll )
+    {
+        TextEngine& rEngine( *mpTextWindow->GetTextEngine() );
+        tools::Long nOverallTextHeight(0);
+        for ( sal_uInt32 i=0; i<rEngine.GetParagraphCount(); ++i )
+            nOverallTextHeight += rEngine.GetTextHeight( i );
+        if ( nOverallTextHeight > mpTextWindow->GetOutputSizePixel().Height() )
+            bNeedVScroll = true;
+    }
+
+    const bool bNeedScrollBox = bNeedVScroll && bNeedHScroll;
+
+    bool bScrollbarsChanged = false;
+    if ( bHaveVScroll != bNeedVScroll )
+    {
+        mpVScrollBar->Show(bNeedVScroll);
+        bScrollbarsChanged = true;
+    }
+
+    if ( bHaveHScroll != bNeedHScroll )
+    {
+        mpHScrollBar->Show(bNeedHScroll);
+        bScrollbarsChanged = true;
+    }
+
+    if ( bHaveScrollBox != bNeedScrollBox )
+    {
+        mpScrollBox->Show(bNeedScrollBox);
+    }
+
+    if ( bScrollbarsChanged )
+    {
+        ImpInitScrollBars();
+        Resize();
+    }
+}
+
+void ImpVclMEdit::InitFromStyle( WinBits nWinStyle )
+{
+    ImpUpdateScrollBarVis( nWinStyle );
+    SetAlign( nWinStyle );
+
+    if ( nWinStyle & WB_NOHIDESELECTION )
+        mpTextWindow->SetAutoFocusHide( false );
+    else
+        mpTextWindow->SetAutoFocusHide( true );
+
+    if ( nWinStyle & WB_READONLY )
+        mpTextWindow->GetTextView()->SetReadOnly( true );
+    else
+        mpTextWindow->GetTextView()->SetReadOnly( false );
+
+    if ( nWinStyle & WB_IGNORETAB )
+    {
+        mpTextWindow->SetIgnoreTab( true );
+    }
+    else
+    {
+        mpTextWindow->SetIgnoreTab( false );
+        // #103667# VclMultiLineEdit has the flag, but focusable window also needs this flag
+        WinBits nStyle = mpTextWindow->GetStyle();
+        nStyle |= WB_NODIALOGCONTROL;
+        mpTextWindow->SetStyle( nStyle );
+    }
+}
+
+ImpVclMEdit::~ImpVclMEdit()
+{
+    EndListening( *mpTextWindow->GetTextEngine() );
+    mpTextWindow.disposeAndClear();
+    mpHScrollBar.disposeAndClear();
+    mpVScrollBar.disposeAndClear();
+    mpScrollBox.disposeAndClear();
+    pVclMultiLineEdit.disposeAndClear();
+}
+
+void ImpVclMEdit::ImpSetScrollBarRanges()
+{
+    const tools::Long nTextHeight = mpTextWindow->GetTextEngine()->GetTextHeight();
+    mpVScrollBar->SetRange( Range( 0, nTextHeight-1 ) );
+
+    mpHScrollBar->SetRange( Range( 0, mnTextWidth-1 ) );
+}
+
+void ImpVclMEdit::ImpInitScrollBars()
+{
+    static const sal_Unicode sampleChar = { 'x' };
+
+    ImpSetScrollBarRanges();
+
+    Size aCharBox;
+    aCharBox.setWidth( mpTextWindow->GetTextWidth( OUString(sampleChar) ) );
+    aCharBox.setHeight( mpTextWindow->GetTextHeight() );
+    Size aOutSz = mpTextWindow->GetOutputSizePixel();
+
+    mpHScrollBar->SetVisibleSize( aOutSz.Width() );
+    mpHScrollBar->SetPageSize( aOutSz.Width() * 8 / 10 );
+    mpHScrollBar->SetLineSize( aCharBox.Width()*10 );
+    ImpSetHScrollBarThumbPos();
+
+    mpVScrollBar->SetVisibleSize( aOutSz.Height() );
+    mpVScrollBar->SetPageSize( aOutSz.Height() * 8 / 10 );
+    mpVScrollBar->SetLineSize( aCharBox.Height() );
+    mpVScrollBar->SetThumbPos( mpTextWindow->GetTextView()->GetStartDocPos().Y() );
+}
+
+void ImpVclMEdit::ImpSetHScrollBarThumbPos()
+{
+    tools::Long nX = mpTextWindow->GetTextView()->GetStartDocPos().X();
+    if ( !mpTextWindow->GetTextEngine()->IsRightToLeft() )
+        mpHScrollBar->SetThumbPos( nX );
+    else
+        mpHScrollBar->SetThumbPos( mnTextWidth - mpHScrollBar->GetVisibleSize() - nX );
+
+}
+
+IMPL_LINK( ImpVclMEdit, ScrollHdl, ScrollBar*, pCurScrollBar, void )
+{
+    tools::Long nDiffX = 0, nDiffY = 0;
+
+    if ( pCurScrollBar == mpVScrollBar )
+        nDiffY = mpTextWindow->GetTextView()->GetStartDocPos().Y() - pCurScrollBar->GetThumbPos();
+    else if ( pCurScrollBar == mpHScrollBar )
+        nDiffX = mpTextWindow->GetTextView()->GetStartDocPos().X() - pCurScrollBar->GetThumbPos();
+
+    mpTextWindow->GetTextView()->Scroll( nDiffX, nDiffY );
+    // mpTextWindow->GetTextView()->ShowCursor( false, true );
+}
+
+void ImpVclMEdit::SetAlign( WinBits nWinStyle )
+{
+    bool bRTL = AllSettings::GetLayoutRTL();
+    mpTextWindow->GetTextEngine()->SetRightToLeft( bRTL );
+
+    if ( nWinStyle & WB_CENTER )
+        mpTextWindow->GetTextEngine()->SetTextAlign( TxtAlign::Center );
+    else if ( nWinStyle & WB_RIGHT )
+        mpTextWindow->GetTextEngine()->SetTextAlign( !bRTL ? TxtAlign::Right : TxtAlign::Left );
+    else if ( nWinStyle & WB_LEFT )
+        mpTextWindow->GetTextEngine()->SetTextAlign( !bRTL ? TxtAlign::Left : TxtAlign::Right );
+}
+
+void ImpVclMEdit::SetModified( bool bMod )
+{
+    mpTextWindow->GetTextEngine()->SetModified( bMod );
+}
+
+void ImpVclMEdit::SetReadOnly( bool bRdOnly )
+{
+    mpTextWindow->GetTextView()->SetReadOnly( bRdOnly );
+    // TODO: Adjust color?
+}
+
+bool ImpVclMEdit::IsReadOnly() const
+{
+    return mpTextWindow->GetTextView()->IsReadOnly();
+}
+
+void ImpVclMEdit::SetMaxTextLen(sal_Int32 nLen)
+{
+    mpTextWindow->GetTextEngine()->SetMaxTextLen(nLen);
+}
+
+sal_Int32 ImpVclMEdit::GetMaxTextLen() const
+{
+    return mpTextWindow->GetTextEngine()->GetMaxTextLen();
+}
+
+void ImpVclMEdit::InsertText( const OUString& rStr )
+{
+    mpTextWindow->GetTextView()->InsertText( rStr );
+}
+
+OUString ImpVclMEdit::GetSelected() const
+{
+    return mpTextWindow->GetTextView()->GetSelected();
+}
+
+OUString ImpVclMEdit::GetSelected( LineEnd aSeparator ) const
+{
+    return mpTextWindow->GetTextView()->GetSelected( aSeparator );
+}
+
+void ImpVclMEdit::SetMaxTextWidth(tools::Long nMaxWidth)
+{
+    mpTextWindow->GetTextEngine()->SetMaxTextWidth(nMaxWidth);
+}
+
+void ImpVclMEdit::Resize()
+{
+    int nIteration = 1;
+    do
+    {
+        WinBits nWinStyle( pVclMultiLineEdit->GetStyle() );
+        if ( ( nWinStyle & WB_AUTOVSCROLL ) == WB_AUTOVSCROLL )
+            ImpUpdateScrollBarVis( nWinStyle );
+
+        Size aSz = pVclMultiLineEdit->GetOutputSizePixel();
+        Size aEditSize = aSz;
+        tools::Long nSBWidth = pVclMultiLineEdit->GetSettings().GetStyleSettings().GetScrollBarSize();
+        nSBWidth = pVclMultiLineEdit->CalcZoom( nSBWidth );
+
+        if (mpHScrollBar->IsVisible())
+            aSz.AdjustHeight( -(nSBWidth+1) );
+        if (mpVScrollBar->IsVisible())
+            aSz.AdjustWidth( -(nSBWidth+1) );
+
+        if (!mpHScrollBar->IsVisible())
+            mpTextWindow->GetTextEngine()->SetMaxTextWidth( aSz.Width() );
+        else
+            mpHScrollBar->setPosSizePixel( 0, aEditSize.Height()-nSBWidth, aSz.Width(), nSBWidth );
+
+        Point aTextWindowPos;
+        if (mpVScrollBar->IsVisible())
+        {
+            if( AllSettings::GetLayoutRTL() )
+            {
+                mpVScrollBar->setPosSizePixel( 0, 0, nSBWidth, aSz.Height() );
+                aTextWindowPos.AdjustX(nSBWidth );
+            }
+            else
+                mpVScrollBar->setPosSizePixel( aEditSize.Width()-nSBWidth, 0, nSBWidth, aSz.Height() );
+        }
+
+        if (mpScrollBox->IsVisible())
+            mpScrollBox->setPosSizePixel( aSz.Width(), aSz.Height(), nSBWidth, nSBWidth );
+
+        Size aTextWindowSize( aSz );
+        if ( aTextWindowSize.Width() < 0 )
+            aTextWindowSize.setWidth( 0 );
+        if ( aTextWindowSize.Height() < 0 )
+            aTextWindowSize.setHeight( 0 );
+
+        Size aOldTextWindowSize( mpTextWindow->GetSizePixel() );
+        mpTextWindow->SetPosSizePixel( aTextWindowPos, aTextWindowSize );
+        if ( aOldTextWindowSize == aTextWindowSize )
+            break;
+
+        // Changing the text window size might effectively have changed the need for
+        // scrollbars, so do another iteration.
+        ++nIteration;
+        OSL_ENSURE( nIteration < 3, "ImpVclMEdit::Resize: isn't this expected to terminate with the second iteration?" );
+
+    } while ( nIteration <= 3 );    // artificial break after four iterations
+
+    ImpInitScrollBars();
+}
+
+void ImpVclMEdit::GetFocus()
+{
+    mpTextWindow->GrabFocus();
+}
+
+void ImpVclMEdit::Cut()
+{
+    if ( !mpTextWindow->GetTextView()->IsReadOnly() )
+        mpTextWindow->GetTextView()->Cut();
+}
+
+void ImpVclMEdit::Copy()
+{
+    mpTextWindow->GetTextView()->Copy();
+}
+
+void ImpVclMEdit::Paste()
+{
+    if ( !mpTextWindow->GetTextView()->IsReadOnly() )
+        mpTextWindow->GetTextView()->Paste();
+}
+
+void ImpVclMEdit::SetText( const OUString& rStr )
+{
+    bool bWasModified = mpTextWindow->GetTextEngine()->IsModified();
+    mpTextWindow->GetTextEngine()->SetText( rStr );
+    if ( !bWasModified )
+        mpTextWindow->GetTextEngine()->SetModified( false );
+
+    mpTextWindow->GetTextView()->SetSelection( TextSelection() );
+
+    WinBits nWinStyle( pVclMultiLineEdit->GetStyle() );
+    if ( ( nWinStyle & WB_AUTOVSCROLL ) == WB_AUTOVSCROLL )
+        ImpUpdateScrollBarVis( nWinStyle );
+}
+
+OUString ImpVclMEdit::GetText() const
+{
+    return mpTextWindow->GetTextEngine()->GetText();
+}
+
+OUString ImpVclMEdit::GetText( LineEnd aSeparator ) const
+{
+    return mpTextWindow->GetTextEngine()->GetText( aSeparator );
+}
+
+OUString ImpVclMEdit::GetTextLines( LineEnd aSeparator ) const
+{
+    return mpTextWindow->GetTextEngine()->GetTextLines( aSeparator );
+}
+
+void ImpVclMEdit::Notify( SfxBroadcaster&, const SfxHint& rHint )
+{
+    const TextHint* pTextHint = dynamic_cast<const TextHint*>(&rHint);
+    if ( !pTextHint )
+        return;
+
+    switch (pTextHint->GetId())
+    {
+        case SfxHintId::TextViewScrolled:
+            if (mpHScrollBar->IsVisible())
+                ImpSetHScrollBarThumbPos();
+            if (mpVScrollBar->IsVisible())
+                mpVScrollBar->SetThumbPos( mpTextWindow->GetTextView()->GetStartDocPos().Y() );
+            break;
+
+        case SfxHintId::TextHeightChanged:
+            if ( mpTextWindow->GetTextView()->GetStartDocPos().Y() )
+            {
+                tools::Long nOutHeight = mpTextWindow->GetOutputSizePixel().Height();
+                tools::Long nTextHeight = mpTextWindow->GetTextEngine()->GetTextHeight();
+                if ( nTextHeight < nOutHeight )
+                    mpTextWindow->GetTextView()->Scroll( 0, mpTextWindow->GetTextView()->GetStartDocPos().Y() );
+            }
+            ImpSetScrollBarRanges();
+            break;
+
+        case SfxHintId::TextFormatted:
+            if (mpHScrollBar->IsVisible())
+            {
+                const tools::Long nWidth = mpTextWindow->GetTextEngine()->CalcTextWidth();
+                if ( nWidth != mnTextWidth )
+                {
+                    mnTextWidth = nWidth;
+                    mpHScrollBar->SetRange( Range( 0, mnTextWidth-1 ) );
+                    ImpSetHScrollBarThumbPos();
+                }
+            }
+            break;
+
+        case SfxHintId::TextModified:
+            ImpUpdateScrollBarVis(pVclMultiLineEdit->GetStyle());
+            pVclMultiLineEdit->Modify();
+            break;
+
+        case SfxHintId::TextViewSelectionChanged:
+            pVclMultiLineEdit->SelectionChanged();
+            break;
+
+        case SfxHintId::TextViewCaretChanged:
+            pVclMultiLineEdit->CaretChanged();
+            break;
+
+        default: break;
+    }
+}
+
+void ImpVclMEdit::SetSelection( const Selection& rSelection )
+{
+    OUString aText = mpTextWindow->GetTextEngine()->GetText();
+
+    Selection aNewSelection( rSelection );
+    if ( aNewSelection.Min() < 0 )
+        aNewSelection.Min() = 0;
+    else if ( aNewSelection.Min() > aText.getLength() )
+        aNewSelection.Min() = aText.getLength();
+    if ( aNewSelection.Max() < 0 )
+        aNewSelection.Max() = 0;
+    else if ( aNewSelection.Max() > aText.getLength() )
+        aNewSelection.Max() = aText.getLength();
+
+    tools::Long nEnd = std::max( aNewSelection.Min(), aNewSelection.Max() );
+    TextSelection aTextSel;
+    sal_uInt32 nPara = 0;
+    sal_Int32 nChar = 0;
+    tools::Long x = 0;
+    while ( x <= nEnd )
+    {
+        if ( x == aNewSelection.Min() )
+            aTextSel.GetStart() = TextPaM( nPara, nChar );
+        if ( x == aNewSelection.Max() )
+            aTextSel.GetEnd() = TextPaM( nPara, nChar );
+
+        if ( ( x < aText.getLength() ) && ( aText[ x ] == '\n' ) )
+        {
+            nPara++;
+            nChar = 0;
+        }
+        else
+            nChar++;
+        x++;
+    }
+    mpTextWindow->GetTextView()->SetSelection( aTextSel );
+}
+
+const Selection& ImpVclMEdit::GetSelection() const
+{
+    maSelection = Selection();
+    TextSelection aTextSel( mpTextWindow->GetTextView()->GetSelection() );
+    aTextSel.Justify();
+    // flatten selection => every line-break a character
+
+    ExtTextEngine* pExtTextEngine = mpTextWindow->GetTextEngine();
+    // paragraphs before
+    for ( sal_uInt32 n = 0; n < aTextSel.GetStart().GetPara(); ++n )
+    {
+        maSelection.Min() += pExtTextEngine->GetTextLen( n );
+        maSelection.Min()++;
+    }
+
+    // first paragraph with selection
+    maSelection.Max() = maSelection.Min();
+    maSelection.Min() += aTextSel.GetStart().GetIndex();
+
+    for ( sal_uInt32 n = aTextSel.GetStart().GetPara(); n < aTextSel.GetEnd().GetPara(); ++n )
+    {
+        maSelection.Max() += pExtTextEngine->GetTextLen( n );
+        maSelection.Max()++;
+    }
+
+    maSelection.Max() += aTextSel.GetEnd().GetIndex();
+
+    return maSelection;
+}
+
+Size ImpVclMEdit::CalcMinimumSize() const
+{
+    Size aSz(   mpTextWindow->GetTextEngine()->CalcTextWidth(),
+                mpTextWindow->GetTextEngine()->GetTextHeight() );
+
+    if (mpHScrollBar->IsVisible())
+        aSz.AdjustHeight(mpHScrollBar->GetSizePixel().Height() );
+    if (mpVScrollBar->IsVisible())
+        aSz.AdjustWidth(mpVScrollBar->GetSizePixel().Width() );
+
+    return aSz;
+}
+
+Size ImpVclMEdit::CalcBlockSize( sal_uInt16 nColumns, sal_uInt16 nLines ) const
+{
+    static const sal_Unicode sampleChar = 'X';
+
+    Size aSz;
+    Size aCharSz;
+    aCharSz.setWidth( mpTextWindow->GetTextWidth( OUString(sampleChar) ) );
+    aCharSz.setHeight( mpTextWindow->GetTextHeight() );
+
+    if ( nLines )
+        aSz.setHeight( nLines*aCharSz.Height() );
+    else
+        aSz.setHeight( mpTextWindow->GetTextEngine()->GetTextHeight() );
+
+    if ( nColumns )
+        aSz.setWidth( nColumns*aCharSz.Width() );
+    else
+        aSz.setWidth( mpTextWindow->GetTextEngine()->CalcTextWidth() );
+
+    if (mpHScrollBar->IsVisible())
+        aSz.AdjustHeight(mpHScrollBar->GetSizePixel().Height() );
+    if (mpVScrollBar->IsVisible())
+        aSz.AdjustWidth(mpVScrollBar->GetSizePixel().Width() );
+
+    return aSz;
+}
+
+void ImpVclMEdit::GetMaxVisColumnsAndLines( sal_uInt16& rnCols, sal_uInt16& rnLines ) const
+{
+    static const sal_Unicode sampleChar = { 'x' };
+    Size aOutSz = mpTextWindow->GetOutputSizePixel();
+    Size aCharSz( mpTextWindow->GetTextWidth( OUString(sampleChar) ), mpTextWindow->GetTextHeight() );
+    rnCols = static_cast<sal_uInt16>(aOutSz.Width()/aCharSz.Width());
+    rnLines = static_cast<sal_uInt16>(aOutSz.Height()/aCharSz.Height());
+}
+
+void ImpVclMEdit::Enable( bool bEnable )
+{
+    mpTextWindow->Enable( bEnable );
+    if (mpHScrollBar->IsVisible())
+        mpHScrollBar->Enable( bEnable );
+    if (mpVScrollBar->IsVisible())
+        mpVScrollBar->Enable( bEnable );
+}
+
+bool ImpVclMEdit::HandleCommand( const CommandEvent& rCEvt )
+{
+    bool bDone = false;
+    CommandEventId nCommand = rCEvt.GetCommand();
+    if (nCommand == CommandEventId::Wheel ||
+        nCommand == CommandEventId::StartAutoScroll ||
+        nCommand == CommandEventId::AutoScroll ||
+        nCommand == CommandEventId::Gesture)
+    {
+        ScrollBar* pHScrollBar = mpHScrollBar->IsVisible() ? mpHScrollBar.get() : nullptr;
+        ScrollBar* pVScrollBar = mpVScrollBar->IsVisible() ? mpVScrollBar.get() : nullptr;
+        mpTextWindow->HandleScrollCommand(rCEvt, pHScrollBar, pVScrollBar);
+        bDone = true;
+    }
+    return bDone;
+}
+
+TextWindow::TextWindow(Edit* pParent)
+    : Window(pParent)
+    , mxParent(pParent)
+{
+    mbInMBDown = false;
+    mbFocusSelectionHide = false;
+    mbIgnoreTab = false;
+    mbActivePopup = false;
+    mbSelectOnTab = true;
+
+    SetPointer( PointerStyle::Text );
+
+    mpExtTextEngine.reset(new ExtTextEngine);
+    mpExtTextEngine->SetMaxTextLen(EDIT_NOLIMIT);
+    if( pParent->GetStyle() & WB_BORDER )
+        mpExtTextEngine->SetLeftMargin( 2 );
+    mpExtTextEngine->SetLocale( GetSettings().GetLanguageTag().getLocale() );
+    mpExtTextView.reset(new TextView( mpExtTextEngine.get(), this ));
+    mpExtTextEngine->InsertView( mpExtTextView.get() );
+    mpExtTextEngine->EnableUndo( true );
+    mpExtTextView->ShowCursor();
+
+    Color aBackgroundColor = GetSettings().GetStyleSettings().GetWorkspaceColor();
+    SetBackground( aBackgroundColor );
+    pParent->SetBackground( aBackgroundColor );
+}
+
+TextWindow::~TextWindow()
+{
+    disposeOnce();
+}
+
+void TextWindow::dispose()
+{
+    mxParent.clear();
+    mpExtTextView.reset();
+    mpExtTextEngine.reset();
+    Window::dispose();
+}
+
+void TextWindow::MouseMove( const MouseEvent& rMEvt )
+{
+    mpExtTextView->MouseMove( rMEvt );
+    Window::MouseMove( rMEvt );
+}
+
+void TextWindow::MouseButtonDown( const MouseEvent& rMEvt )
+{
+    mbInMBDown = true;  // so that GetFocus does not select everything
+    mpExtTextView->MouseButtonDown( rMEvt );
+    GrabFocus();
+    mbInMBDown = false;
+}
+
+void TextWindow::MouseButtonUp( const MouseEvent& rMEvt )
+{
+    mpExtTextView->MouseButtonUp( rMEvt );
+}
+
+void TextWindow::KeyInput( const KeyEvent& rKEvent )
+{
+    bool bDone = false;
+    sal_uInt16 nCode = rKEvent.GetKeyCode().GetCode();
+    if ( nCode == css::awt::Key::SELECT_ALL ||
+         ( (nCode == KEY_A) && rKEvent.GetKeyCode().IsMod1() && !rKEvent.GetKeyCode().IsMod2() )
+       )
+    {
+        mpExtTextView->SetSelection( TextSelection( TextPaM( 0, 0 ), TextPaM( TEXT_PARA_ALL, TEXT_INDEX_ALL ) ) );
+        bDone = true;
+    }
+    else if ( (nCode == KEY_S) && rKEvent.GetKeyCode().IsShift() && rKEvent.GetKeyCode().IsMod1() )
+    {
+        if ( vcl::GetGetSpecialCharsFunction() )
+        {
+            // to maintain the selection
+            mbActivePopup = true;
+            OUString aChars = vcl::GetGetSpecialCharsFunction()(GetFrameWeld(), GetFont());
+            if (!aChars.isEmpty())
+            {
+                mpExtTextView->InsertText( aChars );
+                mpExtTextView->GetTextEngine()->SetModified( true );
+            }
+            mbActivePopup = false;
+            bDone = true;
+        }
+    }
+    else if ( nCode == KEY_TAB )
+    {
+        if ( !mbIgnoreTab || rKEvent.GetKeyCode().IsMod1() )
+            bDone = mpExtTextView->KeyInput( rKEvent  );
+    }
+    else
+    {
+        bDone = mpExtTextView->KeyInput( rKEvent  );
+    }
+
+    if ( !bDone )
+        Window::KeyInput( rKEvent );
+}
+
+void TextWindow::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect)
+{
+    mpExtTextView->Paint(rRenderContext, rRect);
+}
+
+void TextWindow::Resize()
+{
+}
+
+void TextWindow::Command( const CommandEvent& rCEvt )
+{
+    if ( rCEvt.GetCommand() == CommandEventId::ContextMenu )
+    {
+        VclPtr<PopupMenu> pPopup = mxParent->CreatePopupMenu();
+        bool bEnableCut = true;
+        bool bEnableCopy = true;
+        bool bEnableDelete = true;
+        bool bEnablePaste = true;
+        bool bEnableSpecialChar = true;
+        bool bEnableUndo = true;
+
+        if ( !mpExtTextView->HasSelection() )
+        {
+            bEnableCut = false;
+            bEnableCopy = false;
+            bEnableDelete = false;
+        }
+        if ( mpExtTextView->IsReadOnly() )
+        {
+            bEnableCut = false;
+            bEnablePaste = false;
+            bEnableDelete = false;
+            bEnableSpecialChar = false;
+        }
+        if ( !mpExtTextView->GetTextEngine()->HasUndoManager() || !mpExtTextView->GetTextEngine()->GetUndoManager().GetUndoActionCount() )
+        {
+            bEnableUndo = false;
+        }
+        pPopup->EnableItem(pPopup->GetItemId("cut"), bEnableCut);
+        pPopup->EnableItem(pPopup->GetItemId("copy"), bEnableCopy);
+        pPopup->EnableItem(pPopup->GetItemId("delete"), bEnableDelete);
+        pPopup->EnableItem(pPopup->GetItemId("paste"), bEnablePaste);
+        pPopup->EnableItem(pPopup->GetItemId("specialchar"), bEnableSpecialChar);
+        pPopup->EnableItem(pPopup->GetItemId("undo"), bEnableUndo);
+        pPopup->ShowItem(pPopup->GetItemId("specialchar"), !vcl::GetGetSpecialCharsFunction());
+
+        mbActivePopup = true;
+        Point aPos = rCEvt.GetMousePosPixel();
+        if ( !rCEvt.IsMouseEvent() )
+        {
+            // Sometime do show Menu centered in the selection !!!
+            Size aSize = GetOutputSizePixel();
+            aPos = Point( aSize.Width()/2, aSize.Height()/2 );
+        }
+        sal_uInt16 n = pPopup->Execute( this, aPos );
+        OString sCommand = pPopup->GetItemIdent(n);
+        if (sCommand == "undo")
+        {
+            mpExtTextView->Undo();
+            mpExtTextEngine->SetModified( true );
+            mpExtTextEngine->Broadcast( TextHint( SfxHintId::TextModified ) );
+        }
+        else if (sCommand == "cut")
+        {
+            mpExtTextView->Cut();
+            mpExtTextEngine->SetModified( true );
+            mpExtTextEngine->Broadcast( TextHint( SfxHintId::TextModified ) );
+        }
+        else if (sCommand == "copy")
+        {
+            mpExtTextView->Copy();
+        }
+        else if (sCommand == "paste")
+        {
+            mpExtTextView->Paste();
+            mpExtTextEngine->SetModified( true );
+            mpExtTextEngine->Broadcast( TextHint( SfxHintId::TextModified ) );
+        }
+        else if (sCommand == "delete")
+        {
+            mpExtTextView->DeleteSelected();
+            mpExtTextEngine->SetModified( true );
+            mpExtTextEngine->Broadcast( TextHint( SfxHintId::TextModified ) );
+        }
+        else if (sCommand == "selectall")
+        {
+            mpExtTextView->SetSelection( TextSelection( TextPaM( 0, 0 ), TextPaM( TEXT_PARA_ALL, TEXT_INDEX_ALL ) ) );
+        }
+        else if (sCommand == "specialchar")
+        {
+            OUString aChars = vcl::GetGetSpecialCharsFunction()(GetFrameWeld(), GetFont());
+            if (!aChars.isEmpty())
+            {
+                mpExtTextView->InsertText( aChars );
+                mpExtTextEngine->SetModified( true );
+                mpExtTextEngine->Broadcast( TextHint( SfxHintId::TextModified ) );
+            }
+        }
+        pPopup.clear();
+        mbActivePopup = false;
+    }
+    else
+    {
+        mpExtTextView->Command( rCEvt );
+    }
+    Window::Command( rCEvt );
+}
+
+void TextWindow::GetFocus()
+{
+    Window::GetFocus();
+    if ( mbActivePopup )
+        return;
+
+    bool bGotoCursor = !mpExtTextView->IsReadOnly();
+    if ( mbFocusSelectionHide && IsReallyVisible() && mbSelectOnTab && !mbInMBDown )
+    {
+        // select everything, but do not scroll
+        bool bAutoScroll = mpExtTextView->IsAutoScroll();
+        mpExtTextView->SetAutoScroll( false );
+        mpExtTextView->SetSelection( TextSelection( TextPaM( 0, 0 ), TextPaM( TEXT_PARA_ALL, TEXT_INDEX_ALL ) ) );
+        mpExtTextView->SetAutoScroll( bAutoScroll );
+        bGotoCursor = false;
+    }
+    mpExtTextView->SetPaintSelection( true );
+    mpExtTextView->ShowCursor( bGotoCursor );
+}
+
+void TextWindow::LoseFocus()
+{
+    Window::LoseFocus();
+
+    if ( mbFocusSelectionHide && !mbActivePopup && mpExtTextView )
+        mpExtTextView->SetPaintSelection( false );
+}
+
+VclMultiLineEdit::VclMultiLineEdit( vcl::Window* pParent, WinBits nWinStyle )
+    : Edit( pParent, nWinStyle )
+{
+    SetType( WindowType::MULTILINEEDIT );
+    pImpVclMEdit.reset(new ImpVclMEdit( this, nWinStyle ));
+    ImplInitSettings( true );
+
+    SetCompoundControl( true );
+    SetStyle( ImplInitStyle( nWinStyle ) );
+}
+
+VclMultiLineEdit::~VclMultiLineEdit()
+{
+    disposeOnce();
+}
+
+void VclMultiLineEdit::dispose()
+{
+    pImpVclMEdit.reset();
+    Edit::dispose();
+}
+
+WinBits VclMultiLineEdit::ImplInitStyle( WinBits nStyle )
+{
+    if ( !(nStyle & WB_NOTABSTOP) )
+        nStyle |= WB_TABSTOP;
+
+    if ( !(nStyle & WB_NOGROUP) )
+        nStyle |= WB_GROUP;
+
+    if ( !(nStyle & WB_IGNORETAB ))
+        nStyle |= WB_NODIALOGCONTROL;
+
+    return nStyle;
+}
+
+void VclMultiLineEdit::ApplySettings(vcl::RenderContext& rRenderContext)
+{
+    const StyleSettings& rStyleSettings = rRenderContext.GetSettings().GetStyleSettings();
+
+    // The Font has to be adjusted, as the TextEngine does not take care of
+    // TextColor/Background
+
+    Color aTextColor = rStyleSettings.GetFieldTextColor();
+    if (IsControlForeground())
+        aTextColor = GetControlForeground();
+
+    if (!IsEnabled())
+        aTextColor = rStyleSettings.GetDisableColor();
+
+    vcl::Font aFont = rStyleSettings.GetFieldFont();
+    aFont.SetTransparent(IsPaintTransparent());
+    ApplyControlFont(rRenderContext, aFont);
+
+    vcl::Font theFont = rRenderContext.GetFont();
+    theFont.SetColor(aTextColor);
+    if (IsPaintTransparent())
+        theFont.SetFillColor(COL_TRANSPARENT);
+    else
+        theFont.SetFillColor(IsControlBackground() ? GetControlBackground() : rStyleSettings.GetFieldColor());
+
+    pImpVclMEdit->GetTextWindow()->SetFont(theFont);
+    // FIXME: next call causes infinite invalidation loop, rethink how to properly fix this situation
+    // pImpVclMEdit->GetTextWindow()->GetTextEngine()->SetFont(theFont);
+    pImpVclMEdit->GetTextWindow()->SetTextColor(aTextColor);
+
+    if (IsPaintTransparent())
+    {
+        pImpVclMEdit->GetTextWindow()->SetPaintTransparent(true);
+        pImpVclMEdit->GetTextWindow()->SetBackground();
+        pImpVclMEdit->GetTextWindow()->SetControlBackground();
+        rRenderContext.SetBackground();
+        SetControlBackground();
+    }
+    else
+    {
+        if (IsControlBackground())
+            pImpVclMEdit->GetTextWindow()->SetBackground(GetControlBackground());
+        else
+            pImpVclMEdit->GetTextWindow()->SetBackground(rStyleSettings.GetFieldColor());
+        // also adjust for VclMultiLineEdit as the TextComponent might hide Scrollbars
+        rRenderContext.SetBackground(pImpVclMEdit->GetTextWindow()->GetBackground());
+    }
+}
+
+void VclMultiLineEdit::ImplInitSettings(bool bBackground)
+{
+    const StyleSettings& rStyleSettings = GetSettings().GetStyleSettings();
+
+    // The Font has to be adjusted, as the TextEngine does not take care of
+    // TextColor/Background
+
+    Color aTextColor = rStyleSettings.GetFieldTextColor();
+    if (IsControlForeground())
+        aTextColor = GetControlForeground();
+    if (!IsEnabled())
+        aTextColor = rStyleSettings.GetDisableColor();
+
+    vcl::Font aFont = rStyleSettings.GetFieldFont();
+    aFont.SetTransparent(IsPaintTransparent());
+    ApplyControlFont(*GetOutDev(), aFont);
+
+    vcl::Font TheFont = GetFont();
+    TheFont.SetColor(aTextColor);
+    if (IsPaintTransparent())
+        TheFont.SetFillColor(COL_TRANSPARENT);
+    else
+        TheFont.SetFillColor(IsControlBackground() ? GetControlBackground() : rStyleSettings.GetFieldColor());
+    pImpVclMEdit->GetTextWindow()->SetFont(TheFont);
+    pImpVclMEdit->GetTextWindow()->GetTextEngine()->SetFont(TheFont);
+    pImpVclMEdit->GetTextWindow()->SetTextColor(aTextColor);
+
+    if (!bBackground)
+        return;
+
+    if (IsPaintTransparent())
+    {
+        pImpVclMEdit->GetTextWindow()->SetPaintTransparent(true);
+        pImpVclMEdit->GetTextWindow()->SetBackground();
+        pImpVclMEdit->GetTextWindow()->SetControlBackground();
+        SetBackground();
+        SetControlBackground();
+    }
+    else
+    {
+        if (IsControlBackground())
+            pImpVclMEdit->GetTextWindow()->SetBackground(GetControlBackground());
+        else
+            pImpVclMEdit->GetTextWindow()->SetBackground(rStyleSettings.GetFieldColor());
+        // also adjust for VclMultiLineEdit as the TextComponent might hide Scrollbars
+        SetBackground(pImpVclMEdit->GetTextWindow()->GetBackground());
+    }
+}
+
+void VclMultiLineEdit::Modify()
+{
+    aModifyHdlLink.Call( *this );
+
+    CallEventListeners( VclEventId::EditModify );
+}
+
+void VclMultiLineEdit::SelectionChanged()
+{
+    CallEventListeners(VclEventId::EditSelectionChanged);
+}
+
+void VclMultiLineEdit::CaretChanged()
+{
+    CallEventListeners(VclEventId::EditCaretChanged);
+}
+
+void VclMultiLineEdit::SetModifyFlag()
+{
+    pImpVclMEdit->SetModified( true );
+}
+
+void VclMultiLineEdit::SetReadOnly( bool bReadOnly )
+{
+    pImpVclMEdit->SetReadOnly( bReadOnly );
+    Edit::SetReadOnly( bReadOnly );
+
+    // #94921# ReadOnly can be overwritten in InitFromStyle() when WB not set.
+    WinBits nStyle = GetStyle();
+    if ( bReadOnly )
+        nStyle |= WB_READONLY;
+    else
+        nStyle &= ~WB_READONLY;
+    SetStyle( nStyle );
+}
+
+bool VclMultiLineEdit::IsReadOnly() const
+{
+    if (!pImpVclMEdit)  // might be called from within the dtor, when pImpVclMEdit == NULL is a valid state
+        return true;
+
+    return pImpVclMEdit->IsReadOnly();
+}
+
+void VclMultiLineEdit::SetMaxTextLen(sal_Int32 nMaxLen)
+{
+    pImpVclMEdit->SetMaxTextLen(nMaxLen);
+}
+
+void VclMultiLineEdit::SetMaxTextWidth(tools::Long nMaxWidth)
+{
+    pImpVclMEdit->SetMaxTextWidth(nMaxWidth );
+}
+
+sal_Int32 VclMultiLineEdit::GetMaxTextLen() const
+{
+    return pImpVclMEdit->GetMaxTextLen();
+}
+
+void VclMultiLineEdit::ReplaceSelected( const OUString& rStr )
+{
+    pImpVclMEdit->InsertText( rStr );
+}
+
+void VclMultiLineEdit::DeleteSelected()
+{
+    pImpVclMEdit->InsertText( OUString() );
+}
+
+OUString VclMultiLineEdit::GetSelected() const
+{
+    return pImpVclMEdit->GetSelected();
+}
+
+OUString VclMultiLineEdit::GetSelected( LineEnd aSeparator ) const
+{
+    return pImpVclMEdit->GetSelected( aSeparator );
+}
+
+void VclMultiLineEdit::Cut()
+{
+    pImpVclMEdit->Cut();
+}
+
+void VclMultiLineEdit::Copy()
+{
+    pImpVclMEdit->Copy();
+}
+
+void VclMultiLineEdit::Paste()
+{
+    pImpVclMEdit->Paste();
+}
+
+void VclMultiLineEdit::SetText( const OUString& rStr )
+{
+    pImpVclMEdit->SetText( rStr );
+}
+
+OUString VclMultiLineEdit::GetText() const
+{
+    return pImpVclMEdit ? pImpVclMEdit->GetText() : OUString();
+}
+
+OUString VclMultiLineEdit::GetText( LineEnd aSeparator ) const
+{
+    return pImpVclMEdit ? pImpVclMEdit->GetText( aSeparator ) : OUString();
+}
+
+OUString VclMultiLineEdit::GetTextLines( LineEnd aSeparator ) const
+{
+    return pImpVclMEdit ? pImpVclMEdit->GetTextLines( aSeparator ) : OUString();
+}
+
+void VclMultiLineEdit::Resize()
+{
+    pImpVclMEdit->Resize();
+}
+
+void VclMultiLineEdit::GetFocus()
+{
+    if ( !pImpVclMEdit )  // might be called from within the dtor, when pImpVclMEdit == NULL is a valid state
+        return;
+
+    pImpVclMEdit->GetFocus();
+}
+
+void VclMultiLineEdit::SetSelection( const Selection& rSelection )
+{
+    pImpVclMEdit->SetSelection( rSelection );
+}
+
+const Selection& VclMultiLineEdit::GetSelection() const
+{
+    return pImpVclMEdit->GetSelection();
+}
+
+Size VclMultiLineEdit::CalcMinimumSize() const
+{
+    Size aSz = pImpVclMEdit->CalcMinimumSize();
+
+    sal_Int32 nLeft, nTop, nRight, nBottom;
+    static_cast<vcl::Window*>(const_cast<VclMultiLineEdit *>(this))->GetBorder( nLeft, nTop, nRight, nBottom );
+    aSz.AdjustWidth(nLeft+nRight );
+    aSz.AdjustHeight(nTop+nBottom );
+
+    return aSz;
+}
+
+Size VclMultiLineEdit::CalcAdjustedSize( const Size& rPrefSize ) const
+{
+    Size aSz = rPrefSize;
+    sal_Int32 nLeft, nTop, nRight, nBottom;
+    static_cast<vcl::Window*>(const_cast<VclMultiLineEdit *>(this))->GetBorder( nLeft, nTop, nRight, nBottom );
+
+    // center vertically for whole lines
+
+    tools::Long nHeight = aSz.Height() - nTop - nBottom;
+    tools::Long nLineHeight = pImpVclMEdit->CalcBlockSize( 1, 1 ).Height();
+    tools::Long nLines = nHeight / nLineHeight;
+    if ( nLines < 1 )
+        nLines = 1;
+
+    aSz.setHeight( nLines * nLineHeight );
+    aSz.AdjustHeight(nTop+nBottom );
+
+    return aSz;
+}
+
+Size VclMultiLineEdit::CalcBlockSize( sal_uInt16 nColumns, sal_uInt16 nLines ) const
+{
+    Size aSz = pImpVclMEdit->CalcBlockSize( nColumns, nLines );
+
+    sal_Int32 nLeft, nTop, nRight, nBottom;
+    static_cast<vcl::Window*>(const_cast<VclMultiLineEdit *>(this))->GetBorder( nLeft, nTop, nRight, nBottom );
+    aSz.AdjustWidth(nLeft+nRight );
+    aSz.AdjustHeight(nTop+nBottom );
+    return aSz;
+}
+
+void VclMultiLineEdit::GetMaxVisColumnsAndLines( sal_uInt16& rnCols, sal_uInt16& rnLines ) const
+{
+    pImpVclMEdit->GetMaxVisColumnsAndLines( rnCols, rnLines );
+}
+
+void VclMultiLineEdit::StateChanged( StateChangedType nType )
+{
+    if( nType == StateChangedType::Enable )
+    {
+        pImpVclMEdit->Enable( IsEnabled() );
+        ImplInitSettings( false );
+    }
+    else if( nType == StateChangedType::ReadOnly )
+    {
+        pImpVclMEdit->SetReadOnly( IsReadOnly() );
+    }
+    else if ( nType == StateChangedType::Zoom )
+    {
+        pImpVclMEdit->GetTextWindow()->SetZoom( GetZoom() );
+        ImplInitSettings( false );
+        Resize();
+    }
+    else if ( nType == StateChangedType::ControlFont )
+    {
+        ImplInitSettings( false );
+        Resize();
+        Invalidate();
+    }
+    else if ( nType == StateChangedType::ControlForeground )
+    {
+        ImplInitSettings( false );
+        Invalidate();
+    }
+    else if ( nType == StateChangedType::ControlBackground )
+    {
+        ImplInitSettings( true );
+        Invalidate();
+    }
+    else if ( nType == StateChangedType::Style )
+    {
+        pImpVclMEdit->InitFromStyle( GetStyle() );
+        SetStyle( ImplInitStyle( GetStyle() ) );
+    }
+    else if ( nType == StateChangedType::InitShow )
+    {
+        if( IsPaintTransparent() )
+        {
+            pImpVclMEdit->GetTextWindow()->SetPaintTransparent( true );
+            pImpVclMEdit->GetTextWindow()->SetBackground();
+            pImpVclMEdit->GetTextWindow()->SetControlBackground();
+            SetBackground();
+            SetControlBackground();
+        }
+    }
+
+    Control::StateChanged( nType );
+}
+
+void VclMultiLineEdit::DataChanged( const DataChangedEvent& rDCEvt )
+{
+    if ( (rDCEvt.GetType() == DataChangedEventType::SETTINGS) &&
+         (rDCEvt.GetFlags() & AllSettingsFlags::STYLE) )
+    {
+        ImplInitSettings( true );
+        Resize();
+        Invalidate();
+    }
+    else
+        Control::DataChanged( rDCEvt );
+}
+
+void VclMultiLineEdit::Draw( OutputDevice* pDev, const Point& rPos, SystemTextColorFlags nFlags )
+{
+    ImplInitSettings(true);
+
+    Point aPos = pDev->LogicToPixel( rPos );
+    Size aSize = GetSizePixel();
+
+    vcl::Font aFont = pImpVclMEdit->GetTextWindow()->GetDrawPixelFont(pDev);
+    aFont.SetTransparent( true );
+
+    pDev->Push();
+    pDev->SetMapMode();
+    pDev->SetFont( aFont );
+    pDev->SetTextFillColor();
+
+    // Border/Background
+    pDev->SetLineColor();
+    pDev->SetFillColor();
+    bool bBorder = (GetStyle() & WB_BORDER);
+    bool bBackground = IsControlBackground();
+    if ( bBorder || bBackground )
+    {
+        tools::Rectangle aRect( aPos, aSize );
+        if ( bBorder )
+        {
+            DecorationView aDecoView( pDev );
+            aRect = aDecoView.DrawFrame( aRect, DrawFrameStyle::DoubleIn );
+        }
+        if ( bBackground )
+        {
+            pDev->SetFillColor( GetControlBackground() );
+            pDev->DrawRect( aRect );
+        }
+    }
+
+    pDev->SetSystemTextColor(nFlags, IsEnabled());
+
+    OUString aText = GetText();
+    Size aTextSz( pDev->GetTextWidth( aText ), pDev->GetTextHeight() );
+    sal_uLong nLines = static_cast<sal_uLong>(aSize.Height() / aTextSz.Height());
+    if ( !nLines )
+        nLines = 1;
+    aTextSz.setHeight( nLines*aTextSz.Height() );
+    tools::Long nOnePixel = GetDrawPixel( pDev, 1 );
+    tools::Long nOffX = 3*nOnePixel;
+    tools::Long nOffY = 2*nOnePixel;
+
+    // Clipping?
+    if ( ( nOffY < 0  ) || ( (nOffY+aTextSz.Height()) > aSize.Height() ) || ( (nOffX+aTextSz.Width()) > aSize.Width() ) )
+    {
+        tools::Rectangle aClip( aPos, aSize );
+        if ( aTextSz.Height() > aSize.Height() )
+            aClip.AdjustBottom(aTextSz.Height() - aSize.Height() + 1 );  // so that HP-printer does not 'optimize-away'
+        pDev->IntersectClipRegion( aClip );
+    }
+
+    ExtTextEngine aTE;
+    aTE.SetText( GetText() );
+    aTE.SetMaxTextWidth( aSize.Width() );
+    aTE.SetFont( aFont );
+    aTE.SetTextAlign( pImpVclMEdit->GetTextWindow()->GetTextEngine()->GetTextAlign() );
+    aTE.Draw( pDev, Point( aPos.X() + nOffX, aPos.Y() + nOffY ) );
+
+    pDev->Pop();
+}
+
+bool VclMultiLineEdit::EventNotify( NotifyEvent& rNEvt )
+{
+    bool bDone = false;
+    if( rNEvt.GetType() == MouseNotifyEvent::COMMAND )
+    {
+        bDone = pImpVclMEdit->HandleCommand( *rNEvt.GetCommandEvent() );
+    }
+    return bDone || Edit::EventNotify( rNEvt );
+}
+
+bool VclMultiLineEdit::PreNotify( NotifyEvent& rNEvt )
+{
+    bool bDone = false;
+
+    if( ( rNEvt.GetType() == MouseNotifyEvent::KEYINPUT ) && ( !GetTextView()->IsCursorEnabled() ) )
+    {
+        const KeyEvent& rKEvent = *rNEvt.GetKeyEvent();
+        if ( !rKEvent.GetKeyCode().IsShift() && ( rKEvent.GetKeyCode().GetGroup() == KEYGROUP_CURSOR ) )
+        {
+            bDone = true;
+            TextSelection aSel = pImpVclMEdit->GetTextWindow()->GetTextView()->GetSelection();
+            if ( aSel.HasRange() )
+            {
+                aSel.GetStart() = aSel.GetEnd();
+                pImpVclMEdit->GetTextWindow()->GetTextView()->SetSelection( aSel );
+            }
+            else
+            {
+                switch ( rKEvent.GetKeyCode().GetCode() )
+                {
+                    case KEY_UP:
+                    {
+                        if ( pImpVclMEdit->GetVScrollBar().IsVisible() )
+                            pImpVclMEdit->GetVScrollBar().DoScrollAction( ScrollType::LineUp );
+                    }
+                    break;
+                    case KEY_DOWN:
+                    {
+                        if ( pImpVclMEdit->GetVScrollBar().IsVisible() )
+                            pImpVclMEdit->GetVScrollBar().DoScrollAction( ScrollType::LineDown );
+                    }
+                    break;
+                    case KEY_PAGEUP :
+                    {
+                        if ( pImpVclMEdit->GetVScrollBar().IsVisible() )
+                            pImpVclMEdit->GetVScrollBar().DoScrollAction( ScrollType::PageUp );
+                    }
+                    break;
+                    case KEY_PAGEDOWN:
+                    {
+                        if ( pImpVclMEdit->GetVScrollBar().IsVisible() )
+                            pImpVclMEdit->GetVScrollBar().DoScrollAction( ScrollType::PageDown );
+                    }
+                    break;
+                    case KEY_LEFT:
+                    {
+                        if ( pImpVclMEdit->GetHScrollBar().IsVisible() )
+                            pImpVclMEdit->GetHScrollBar().DoScrollAction( ScrollType::LineUp );
+                    }
+                    break;
+                    case KEY_RIGHT:
+                    {
+                        if ( pImpVclMEdit->GetHScrollBar().IsVisible() )
+                            pImpVclMEdit->GetHScrollBar().DoScrollAction( ScrollType::LineDown );
+                    }
+                    break;
+                    case KEY_HOME:
+                    {
+                        if ( rKEvent.GetKeyCode().IsMod1() )
+                            pImpVclMEdit->GetTextWindow()->GetTextView()->
+                                SetSelection( TextSelection( TextPaM( 0, 0 ) ) );
+                    }
+                    break;
+                    case KEY_END:
+                    {
+                        if ( rKEvent.GetKeyCode().IsMod1() )
+                            pImpVclMEdit->GetTextWindow()->GetTextView()->
+                                SetSelection( TextSelection( TextPaM( TEXT_PARA_ALL, TEXT_INDEX_ALL ) ) );
+                    }
+                    break;
+                    default:
+                    {
+                        bDone = false;
+                    }
+                }
+            }
+        }
+    }
+
+    return bDone || Edit::PreNotify( rNEvt );
+}
+
+// Internals for derived classes, e.g. TextComponent
+
+ExtTextEngine* VclMultiLineEdit::GetTextEngine() const
+{
+    return pImpVclMEdit->GetTextWindow()->GetTextEngine();
+}
+
+TextView* VclMultiLineEdit::GetTextView() const
+{
+    return pImpVclMEdit->GetTextWindow()->GetTextView();
+}
+
+ScrollBar& VclMultiLineEdit::GetVScrollBar() const
+{
+    return pImpVclMEdit->GetVScrollBar();
+}
+
+void VclMultiLineEdit::EnableFocusSelectionHide( bool bHide )
+{
+    pImpVclMEdit->GetTextWindow()->SetAutoFocusHide( bHide );
+}
+
+void VclMultiLineEdit::DisableSelectionOnFocus()
+{
+    pImpVclMEdit->GetTextWindow()->DisableSelectionOnFocus();
+}
+
+void VclMultiLineEdit::EnableCursor( bool bEnable )
+{
+    GetTextView()->EnableCursor( bEnable );
+}
+
+bool VclMultiLineEdit::CanUp() const
+{
+    TextView* pTextView = GetTextView();
+    const TextSelection& rTextSelection = pTextView->GetSelection();
+    TextPaM aPaM(rTextSelection.GetEnd());
+    return aPaM != pTextView->CursorUp(aPaM);
+}
+
+bool VclMultiLineEdit::CanDown() const
+{
+    TextView* pTextView = GetTextView();
+    const TextSelection& rTextSelection = pTextView->GetSelection();
+    TextPaM aPaM(rTextSelection.GetEnd());
+    return aPaM != pTextView->CursorDown(aPaM);
+}
+
+TextWindow* VclMultiLineEdit::GetTextWindow()
+{
+    return pImpVclMEdit->GetTextWindow();
+}
+
+FactoryFunction VclMultiLineEdit::GetUITestFactory() const
+{
+    return MultiLineEditUIObject::create;
+}
+
+bool VclMultiLineEdit::set_property(const OString &rKey, const OUString &rValue)
+{
+    if (rKey == "cursor-visible")
+        EnableCursor(toBool(rValue));
+    else if (rKey == "accepts-tab")
+        pImpVclMEdit->GetTextWindow()->SetIgnoreTab(!toBool(rValue));
+    else
+        return Edit::set_property(rKey, rValue);
+    return true;
+}
+
+void VclMultiLineEdit::DumpAsPropertyTree(tools::JsonWriter& rJsonWriter)
+{
+    Edit::DumpAsPropertyTree(rJsonWriter);
+
+    rJsonWriter.put("cursor", pImpVclMEdit->GetTextWindow()->GetTextView()->IsCursorEnabled());
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/edit/xtextedt.cxx b/vcl/source/edit/xtextedt.cxx
new file mode 100644
index 000000000..106ad69bf
--- /dev/null
+++ b/vcl/source/edit/xtextedt.cxx
@@ -0,0 +1,227 @@
+/* -*- 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 <i18nutil/searchopt.hxx>
+#include <i18nlangtag/languagetag.hxx>
+#include <vcl/textdata.hxx>
+#include <vcl/xtextedt.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/settings.hxx>
+#include <unotools/textsearch.hxx>
+#include <com/sun/star/util/SearchFlags.hpp>
+
+using namespace ::com::sun::star;
+
+const std::wstring gaGroupChars = L"(){}[]";
+
+ExtTextEngine::ExtTextEngine()
+{
+}
+
+ExtTextEngine::~ExtTextEngine()
+{
+}
+
+TextSelection ExtTextEngine::MatchGroup( const TextPaM& rCursor ) const
+{
+    TextSelection aSel( rCursor );
+    const sal_Int32 nPos = rCursor.GetIndex();
+    sal_uInt32 nPara = rCursor.GetPara();
+    const sal_uInt32 nParas = GetParagraphCount();
+    if ( ( nPara < nParas ) && ( nPos < GetTextLen( nPara ) ) )
+    {
+        size_t nMatchIndex = gaGroupChars.find( GetText( rCursor.GetPara() )[ nPos ] );
+        if ( nMatchIndex != std::wstring::npos )
+        {
+            if ( ( nMatchIndex % 2 ) == 0 )
+            {
+                // search forwards
+                sal_Unicode nSC = gaGroupChars[ nMatchIndex ];
+                sal_Unicode nEC = gaGroupChars[ nMatchIndex+1 ];
+
+                sal_Int32 nCur = nPos+1;
+                sal_uInt16 nLevel = 1;
+                while ( nLevel && ( nPara < nParas ) )
+                {
+                    OUString aStr = GetText( nPara );
+                    while ( nCur < aStr.getLength() )
+                    {
+                        if ( aStr[nCur] == nSC )
+                            nLevel++;
+                        else if ( aStr[nCur] == nEC )
+                        {
+                            nLevel--;
+                            if ( !nLevel )
+                                break;  // while nCur...
+                        }
+                        nCur++;
+                    }
+
+                    if ( nLevel )
+                    {
+                        nPara++;
+                        nCur = 0;
+                    }
+                }
+                if ( nLevel == 0 )  // found
+                {
+                    aSel.GetStart() = rCursor;
+                    aSel.GetEnd() = TextPaM( nPara, nCur+1 );
+                }
+            }
+            else
+            {
+                // search backwards
+                sal_Unicode nEC = gaGroupChars[ nMatchIndex ];
+                sal_Unicode nSC = gaGroupChars[ nMatchIndex-1 ];
+
+                sal_Int32 nCur = rCursor.GetIndex()-1;
+                sal_uInt16 nLevel = 1;
+                while ( nLevel )
+                {
+                    if ( GetTextLen( nPara ) )
+                    {
+                        OUString aStr = GetText( nPara );
+                        while ( nCur )
+                        {
+                            if ( aStr[nCur] == nSC )
+                            {
+                                nLevel--;
+                                if ( !nLevel )
+                                    break;  // while nCur...
+                            }
+                            else if ( aStr[nCur] == nEC )
+                                nLevel++;
+
+                            nCur--;
+                        }
+                    }
+
+                    if ( nLevel )
+                    {
+                        if ( nPara )
+                        {
+                            nPara--;
+                            nCur = GetTextLen( nPara )-1;   // no matter if negative, as if Len()
+                        }
+                        else
+                            break;
+                    }
+                }
+
+                if ( nLevel == 0 )  // found
+                {
+                    aSel.GetStart() = rCursor;
+                    ++aSel.GetStart().GetIndex();   // behind the char
+                    aSel.GetEnd() = TextPaM( nPara, nCur );
+                }
+            }
+        }
+    }
+    return aSel;
+}
+
+bool ExtTextEngine::Search( TextSelection& rSel, const i18nutil::SearchOptions& rSearchOptions, bool bForward ) const
+{
+    TextSelection aSel( rSel );
+    aSel.Justify();
+
+    bool bSearchInSelection = (0 != (rSearchOptions.searchFlag & util::SearchFlags::REG_NOT_BEGINOFLINE) );
+
+    TextPaM aStartPaM( aSel.GetEnd() );
+    if ( aSel.HasRange() && ( ( bSearchInSelection && bForward ) || ( !bSearchInSelection && !bForward ) ) )
+    {
+        aStartPaM = aSel.GetStart();
+    }
+
+    bool bFound = false;
+    sal_uInt32 nEndNode;
+
+    if ( bSearchInSelection )
+        nEndNode = bForward ? aSel.GetEnd().GetPara() : aSel.GetStart().GetPara();
+    else
+        nEndNode = bForward ? (GetParagraphCount()-1) : 0;
+
+    const sal_uInt32 nStartNode = aStartPaM.GetPara();
+
+    i18nutil::SearchOptions aOptions( rSearchOptions );
+    aOptions.Locale = Application::GetSettings().GetLanguageTag().getLocale();
+    utl::TextSearch aSearcher( utl::TextSearch::UpgradeToSearchOptions2(aOptions) );
+
+    // iterate over the paragraphs
+    for ( sal_uInt32 nNode = nStartNode;
+            bForward ?  ( nNode <= nEndNode) : ( nNode >= nEndNode );
+            bForward ? nNode++ : nNode-- )
+    {
+        OUString aText = GetText( nNode );
+        sal_Int32 nStartPos = 0;
+        sal_Int32 nEndPos = aText.getLength();
+        if ( nNode == nStartNode )
+        {
+            if ( bForward )
+                nStartPos = aStartPaM.GetIndex();
+            else
+                nEndPos = aStartPaM.GetIndex();
+        }
+        if ( ( nNode == nEndNode ) && bSearchInSelection )
+        {
+            if ( bForward )
+                nEndPos = aSel.GetEnd().GetIndex();
+            else
+                nStartPos = aSel.GetStart().GetIndex();
+        }
+
+        if ( bForward )
+            bFound = aSearcher.SearchForward( aText, &nStartPos, &nEndPos );
+        else
+            bFound = aSearcher.SearchBackward( aText, &nEndPos, &nStartPos );
+
+        if ( bFound )
+        {
+            rSel.GetStart().GetPara() = nNode;
+            rSel.GetStart().GetIndex() = nStartPos;
+            rSel.GetEnd().GetPara() = nNode;
+            rSel.GetEnd().GetIndex() = nEndPos;
+            // Select over the paragraph?
+            // FIXME  This should be max long...
+            if( nEndPos == -1)
+            {
+                if ( (rSel.GetEnd().GetPara()+1) < GetParagraphCount() )
+                {
+                    rSel.GetEnd().GetPara()++;
+                    rSel.GetEnd().GetIndex() = 0;
+                }
+                else
+                {
+                    rSel.GetEnd().GetIndex() = nStartPos;
+                    bFound = false;
+                }
+            }
+
+            break;
+        }
+
+        if ( !bForward && !nNode )  // if searching backwards, if nEndNode == 0:
+            break;
+    }
+
+    return bFound;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */