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diff --git a/sw/inc/ndnotxt.hxx b/sw/inc/ndnotxt.hxx
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+++ b/sw/inc/ndnotxt.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#ifndef INCLUDED_SW_INC_NDNOTXT_HXX
+#define INCLUDED_SW_INC_NDNOTXT_HXX
+
+#include <optional>
+#include <tools/poly.hxx>
+#include "node.hxx"
+
+class Size;
+
+/// Layout frame for SwNoTextNode, i.e. graphics and OLE nodes (including charts).
+class SW_DLLPUBLIC SwNoTextNode : public SwContentNode
+{
+    friend class SwNodes;
+    friend class SwNoTextFrame;
+
+    mutable std::optional<tools::PolyPolygon> m_pContour;
+    bool m_bAutomaticContour : 1; // automatic contour polygon, not manipulated
+    mutable bool m_bContourMapModeValid : 1; // contour map mode is not the graphics's
+                                   // preferred map mode, but either
+                                      // MM100 or pixel
+    mutable bool m_bPixelContour : 1;     // contour map mode is invalid and pixel.
+
+    // Creates for all derivations an AttrSet with ranges for frame- and
+    // graphics-attributes (only called by SwContentNode).
+    virtual void NewAttrSet( SwAttrPool& ) override;
+
+    SwNoTextNode( const SwNoTextNode& ) = delete;
+    SwNoTextNode &operator=( const SwNoTextNode& ) = delete;
+
+protected:
+    SwNoTextNode( SwNode& rWhere, const SwNodeType nNdType,
+                SwGrfFormatColl *pGrColl, SwAttrSet const * pAutoAttr );
+
+public:
+    virtual ~SwNoTextNode() override;
+
+    virtual SwContentFrame *MakeFrame( SwFrame* ) override;
+
+    SwGrfFormatColl *GetGrfColl() const { return const_cast<SwGrfFormatColl*>(static_cast<const SwGrfFormatColl*>(GetRegisteredIn())); }
+
+    virtual Size GetTwipSize() const = 0;
+
+    virtual bool SavePersistentData();
+    virtual bool RestorePersistentData();
+
+    OUString GetTitle() const;
+    void SetTitle( const OUString& rTitle );
+    OUString GetDescription() const;
+    void SetDescription( const OUString& rDescription );
+
+    void               SetContour( const tools::PolyPolygon *pPoly,
+                                   bool bAutomatic = false );
+    const tools::PolyPolygon *HasContour() const;
+    bool               HasContour_() const { return bool(m_pContour); };
+    void               GetContour( tools::PolyPolygon &rPoly ) const;
+    void               CreateContour();
+
+    void               SetAutomaticContour( bool bSet ) { m_bAutomaticContour = bSet; }
+    bool               HasAutomaticContour() const { return m_bAutomaticContour; }
+
+    // set either a MM100 or pixel contour
+    void               SetContourAPI( const tools::PolyPolygon *pPoly );
+
+    // get either a MM100 or pixel contour, return false if no contour is set.
+    bool               GetContourAPI( tools::PolyPolygon &rPoly ) const;
+
+    void               SetPixelContour( bool bSet ) { m_bPixelContour = bSet; }
+    bool               IsPixelContour() const;
+
+    bool               IsContourMapModeValid() const { return m_bContourMapModeValid; }
+
+    // Obtains the graphic with SwapIn for GrfNode via GetData for OLE.
+    Graphic GetGraphic() const;
+};
+
+// Inline methods from Node.hxx - we know TextNode only here!!
+inline SwNoTextNode *SwNode::GetNoTextNode()
+{
+    return SwNodeType::NoTextMask & m_nNodeType ? static_cast<SwNoTextNode*>(this) : nullptr;
+}
+inline const SwNoTextNode *SwNode::GetNoTextNode() const
+{
+    return SwNodeType::NoTextMask & m_nNodeType ? static_cast<const SwNoTextNode*>(this) : nullptr;
+}
+
+#endif // INCLUDED_SW_INC_NDNOTXT_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */