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diff --git a/sw/source/core/text/guess.hxx b/sw/source/core/text/guess.hxx
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+++ b/sw/source/core/text/guess.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 .
+ */
+
+#pragma once
+#include <memory>
+
+#include "porrst.hxx"
+
+#include <com/sun/star/uno/Reference.hxx>
+
+namespace com::sun::star::linguistic2 { class XHyphenatedWord; }
+
+class SwTextFormatInfo;
+
+class SwTextGuess
+{
+    css::uno::Reference< css::linguistic2::XHyphenatedWord >  m_xHyphWord;
+    std::unique_ptr<SwHangingPortion> m_pHanging; // for hanging punctuation
+    TextFrameIndex m_nCutPos;         // this character doesn't fit
+    TextFrameIndex m_nBreakStart;     // start index of word containing line break
+    TextFrameIndex m_nBreakPos;       // start index of break position
+    TextFrameIndex m_nFieldDiff;      // absolute positions can be wrong if we
+                               // a field in the text has been expanded
+    sal_uInt16 m_nBreakWidth;    // width of the broken portion
+public:
+    SwTextGuess(): m_nCutPos(0), m_nBreakStart(0),
+                   m_nBreakPos(0), m_nFieldDiff(0), m_nBreakWidth(0)
+        { }
+
+    // true, if current portion still fits to current line
+    bool Guess( const SwTextPortion& rPor, SwTextFormatInfo &rInf,
+                    const sal_uInt16 nHeight );
+    bool AlternativeSpelling( const SwTextFormatInfo &rInf, const TextFrameIndex nPos );
+
+    SwHangingPortion* GetHangingPortion() const { return m_pHanging.get(); }
+    SwHangingPortion* ReleaseHangingPortion() { return m_pHanging.release(); }
+    sal_uInt16 BreakWidth() const { return m_nBreakWidth; }
+    TextFrameIndex CutPos() const { return m_nCutPos; }
+    TextFrameIndex BreakStart() const { return m_nBreakStart; }
+    TextFrameIndex BreakPos() const {return m_nBreakPos; }
+    TextFrameIndex FieldDiff() const {return m_nFieldDiff; }
+    const css::uno::Reference< css::linguistic2::XHyphenatedWord >& HyphWord() const
+        { return m_xHyphWord; }
+};
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */