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diff --git a/starmath/inc/utility.hxx b/starmath/inc/utility.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_STARMATH_INC_UTILITY_HXX
+#define INCLUDED_STARMATH_INC_UTILITY_HXX
+
+#include <sal/config.h>
+
+#include <sal/log.hxx>
+#include <vcl/font.hxx>
+#include <vcl/weld.hxx>
+#include <tools/fract.hxx>
+#include <deque>
+
+inline long SmPtsTo100th_mm(long nNumPts)
+    // returns the length (in 100th of mm) that corresponds to the length
+    // 'nNumPts' (in units points).
+    // 72.27 [pt] = 1 [inch] = 2,54 [cm] = 2540 [100th of mm].
+    // result is being rounded to the nearest integer.
+{
+    SAL_WARN_IF( nNumPts < 0, "starmath", "Ooops..." );
+    // broken into multiple and fraction of 'nNumPts' to reduce chance
+    // of overflow
+    // (7227 / 2) is added in order to round to the nearest integer
+    return 35 * nNumPts + (nNumPts * 1055L + (7227 / 2)) / 7227L;
+}
+
+
+inline Fraction Sm100th_mmToPts(long nNum100th_mm)
+    // returns the length (in points) that corresponds to the length
+    // 'nNum100th_mm' (in 100th of mm).
+{
+    SAL_WARN_IF( nNum100th_mm < 0, "starmath", "Ooops..." );
+    return Fraction(7227L, 254000L) * Fraction(nNum100th_mm);
+}
+
+
+inline long SmRoundFraction(const Fraction &rFrac)
+{
+    SAL_WARN_IF( rFrac <= Fraction(), "starmath", "Ooops..." );
+    return (rFrac.GetNumerator() + rFrac.GetDenominator() / 2) / rFrac.GetDenominator();
+}
+
+
+class SmViewShell;
+SmViewShell * SmGetActiveView();
+
+
+// SmFace
+
+
+bool    IsItalic( const vcl::Font &rFont );
+bool    IsBold( const vcl::Font &rFont );
+
+class SmFace final : public vcl::Font
+{
+    long    nBorderWidth;
+
+    void    Impl_Init();
+
+public:
+    SmFace() :
+        Font(), nBorderWidth(-1) { Impl_Init(); }
+    SmFace(const Font& rFont) :
+        Font(rFont), nBorderWidth(-1) { Impl_Init(); }
+    SmFace(const OUString& rName, const Size& rSize) :
+        Font(rName, rSize), nBorderWidth(-1) { Impl_Init(); }
+
+    SmFace(const SmFace &rFace) :
+        Font(rFace), nBorderWidth(-1) { Impl_Init(); }
+
+    // overloaded version in order to supply a min value
+    // for font size (height). (Also used in ctor's to do so.)
+    void    SetSize(const Size& rSize);
+
+    void    SetBorderWidth(long nWidth)     { nBorderWidth = nWidth; }
+    long    GetBorderWidth() const;
+    long    GetDefaultBorderWidth() const   { return GetFontSize().Height() / 20 ; }
+    void    FreezeBorderWidth()     { nBorderWidth = GetDefaultBorderWidth(); }
+
+    SmFace & operator = (const SmFace &rFace);
+};
+
+SmFace & operator *= (SmFace &rFace, const Fraction &rFrac);
+
+
+// SmFontPickList
+
+
+class SmFontDialog;
+
+class SmFontPickList
+{
+protected:
+    sal_uInt16 nMaxItems;
+    std::deque<vcl::Font> aFontVec;
+
+public:
+    explicit SmFontPickList(sal_uInt16 nMax = 5) : nMaxItems(nMax) {}
+    virtual ~SmFontPickList() { Clear(); }
+
+    virtual void    Insert(const vcl::Font &rFont);
+
+    void            Clear();
+    vcl::Font       Get(sal_uInt16 nPos = 0) const;
+
+    SmFontPickList& operator = (const SmFontPickList& rList);
+
+    void            ReadFrom(const SmFontDialog& rDialog);
+    void            WriteTo(SmFontDialog& rDialog) const;
+};
+
+
+//  SmFontPickListBox
+
+
+class SmFontPickListBox final : public SmFontPickList
+{
+private:
+    std::unique_ptr<weld::ComboBox> m_xWidget;
+
+    DECL_LINK(SelectHdl, weld::ComboBox&, void);
+
+public:
+    SmFontPickListBox(std::unique_ptr<weld::ComboBox> pWidget);
+    SmFontPickListBox& operator = (const SmFontPickList& rList);
+    virtual void    Insert(const vcl::Font &rFont) override;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */