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

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

1 files changed, 1155 insertions, 0 deletions

diff --git a/vcl/source/font/font.cxx b/vcl/source/font/font.cxx
new file mode 100644
index 000000000..2b7f22ad0
--- /dev/null
+++ b/vcl/source/font/font.cxx
@@ -0,0 +1,1155 @@
+/* -*- 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 <tools/vcompat.hxx>
+#include <tools/gen.hxx>
+#include <unotools/configmgr.hxx>
+#include <unotools/fontcfg.hxx>
+#include <unotools/fontdefs.hxx>
+#include <o3tl/hash_combine.hxx>
+
+#include <vcl/font.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/outdev.hxx>
+#include <vcl/virdev.hxx>
+
+#include <impfont.hxx>
+#include <fontattributes.hxx>
+#include <fontsubset.hxx>
+#include <sft.hxx>
+
+#include <algorithm>
+#include <string_view>
+
+#include <vcl/TypeSerializer.hxx>
+
+#ifdef _WIN32
+#include <vcl/metric.hxx>
+#endif
+
+using namespace vcl;
+
+namespace
+{
+    Font::ImplType& GetGlobalDefault()
+    {
+        static Font::ImplType gDefault;
+        return gDefault;
+    }
+}
+
+Font::Font() : mpImplFont(GetGlobalDefault())
+{
+}
+
+Font::Font( const vcl::Font& rFont ) : mpImplFont( rFont.mpImplFont )
+{
+}
+
+Font::Font( vcl::Font&& rFont ) noexcept : mpImplFont( std::move(rFont.mpImplFont) )
+{
+}
+
+Font::Font( const OUString& rFamilyName, const Size& rSize )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->maFamilyName != rFamilyName
+        || const_cast<const ImplType&>(mpImplFont)->maAverageFontSize != rSize)
+    {
+        mpImplFont->SetFamilyName( rFamilyName );
+        mpImplFont->SetFontSize( rSize );
+    }
+}
+
+Font::Font( const OUString& rFamilyName, const OUString& rStyleName, const Size& rSize )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->maFamilyName != rFamilyName
+        || const_cast<const ImplType&>(mpImplFont)->maStyleName != rStyleName
+        || const_cast<const ImplType&>(mpImplFont)->maAverageFontSize != rSize)
+    {
+        mpImplFont->SetFamilyName( rFamilyName );
+        mpImplFont->SetStyleName( rStyleName );
+        mpImplFont->SetFontSize( rSize );
+    }
+}
+
+Font::Font( FontFamily eFamily, const Size& rSize )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->meFamily != eFamily
+        || const_cast<const ImplType&>(mpImplFont)->maAverageFontSize != rSize)
+    {
+        mpImplFont->SetFamilyType( eFamily );
+        mpImplFont->SetFontSize( rSize );
+    }
+}
+
+Font::~Font()
+{
+}
+
+void Font::SetColor( const Color& rColor )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->maColor != rColor)
+    {
+        mpImplFont->maColor = rColor;
+    }
+}
+
+void Font::SetFillColor( const Color& rColor )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->maFillColor != rColor)
+    {
+        mpImplFont->maFillColor = rColor;
+        if ( rColor.IsTransparent() )
+            mpImplFont->mbTransparent = true;
+    }
+}
+
+void Font::SetTransparent( bool bTransparent )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->mbTransparent != bTransparent)
+        mpImplFont->mbTransparent = bTransparent;
+}
+
+void Font::SetAlignment( TextAlign eAlign )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->meAlign != eAlign)
+        mpImplFont->SetAlignment(eAlign);
+}
+
+void Font::SetFamilyName( const OUString& rFamilyName )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->maFamilyName != rFamilyName)
+        mpImplFont->SetFamilyName( rFamilyName );
+}
+
+void Font::SetStyleName( const OUString& rStyleName )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->maStyleName != rStyleName)
+        mpImplFont->maStyleName = rStyleName;
+}
+
+void Font::SetFontSize( const Size& rSize )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->GetFontSize() != rSize)
+        mpImplFont->SetFontSize( rSize );
+}
+
+void Font::SetFamily( FontFamily eFamily )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->GetFamilyTypeNoAsk() != eFamily)
+        mpImplFont->SetFamilyType( eFamily );
+}
+
+void Font::SetCharSet( rtl_TextEncoding eCharSet )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->GetCharSet() != eCharSet)
+    {
+        mpImplFont->SetCharSet( eCharSet );
+
+        if ( eCharSet == RTL_TEXTENCODING_SYMBOL )
+            mpImplFont->SetSymbolFlag( true );
+        else
+            mpImplFont->SetSymbolFlag( false );
+    }
+}
+
+bool Font::IsSymbolFont() const
+{
+    return mpImplFont->IsSymbolFont();
+}
+
+void Font::SetSymbolFlag( bool bSymbol )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->mbSymbolFlag != bSymbol)
+    {
+        mpImplFont->SetSymbolFlag( bSymbol );
+
+        if ( IsSymbolFont() )
+        {
+            mpImplFont->SetCharSet( RTL_TEXTENCODING_SYMBOL );
+        }
+        else
+        {
+            if ( std::as_const(mpImplFont)->GetCharSet() == RTL_TEXTENCODING_SYMBOL )
+                mpImplFont->SetCharSet( RTL_TEXTENCODING_DONTKNOW );
+        }
+    }
+}
+
+void Font::SetLanguageTag( const LanguageTag& rLanguageTag )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->maLanguageTag != rLanguageTag)
+        mpImplFont->maLanguageTag = rLanguageTag;
+}
+
+void Font::SetCJKContextLanguageTag( const LanguageTag& rLanguageTag )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->maCJKLanguageTag != rLanguageTag)
+        mpImplFont->maCJKLanguageTag = rLanguageTag;
+}
+
+void Font::SetLanguage( LanguageType eLanguage )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->maLanguageTag.getLanguageType(false) != eLanguage)
+        mpImplFont->maLanguageTag.reset( eLanguage);
+}
+
+void Font::SetCJKContextLanguage( LanguageType eLanguage )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->maCJKLanguageTag.getLanguageType(false) != eLanguage)
+        mpImplFont->maCJKLanguageTag.reset( eLanguage);
+}
+
+void Font::SetPitch( FontPitch ePitch )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->GetPitchNoAsk() != ePitch)
+        mpImplFont->SetPitch( ePitch );
+}
+
+void Font::SetOrientation( Degree10 nOrientation )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->mnOrientation != nOrientation)
+        mpImplFont->mnOrientation = nOrientation;
+}
+
+void Font::SetVertical( bool bVertical )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->mbVertical != bVertical)
+        mpImplFont->mbVertical = bVertical;
+}
+
+void Font::SetKerning( FontKerning eKerning )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->meKerning != eKerning)
+        mpImplFont->meKerning = eKerning;
+}
+
+bool Font::IsKerning() const
+{
+    return mpImplFont->meKerning != FontKerning::NONE;
+}
+
+void Font::SetWeight( FontWeight eWeight )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->GetWeightNoAsk() != eWeight)
+        mpImplFont->SetWeight( eWeight );
+}
+
+void Font::SetWidthType( FontWidth eWidth )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->GetWidthTypeNoAsk() != eWidth)
+        mpImplFont->SetWidthType( eWidth );
+}
+
+void Font::SetItalic( FontItalic eItalic )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->GetItalicNoAsk() != eItalic)
+        mpImplFont->SetItalic( eItalic );
+}
+
+void Font::SetOutline( bool bOutline )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->mbOutline != bOutline)
+        mpImplFont->mbOutline = bOutline;
+}
+
+void Font::SetShadow( bool bShadow )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->mbShadow != bShadow)
+        mpImplFont->mbShadow = bShadow;
+}
+
+void Font::SetUnderline( FontLineStyle eUnderline )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->meUnderline != eUnderline)
+        mpImplFont->meUnderline = eUnderline;
+}
+
+void Font::SetOverline( FontLineStyle eOverline )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->meOverline != eOverline)
+        mpImplFont->meOverline = eOverline;
+}
+
+void Font::SetStrikeout( FontStrikeout eStrikeout )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->meStrikeout != eStrikeout)
+        mpImplFont->meStrikeout = eStrikeout;
+}
+
+void Font::SetRelief( FontRelief eRelief )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->meRelief != eRelief)
+        mpImplFont->meRelief = eRelief;
+}
+
+void Font::SetEmphasisMark( FontEmphasisMark eEmphasisMark )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->meEmphasisMark != eEmphasisMark )
+        mpImplFont->meEmphasisMark = eEmphasisMark;
+}
+
+void Font::SetWordLineMode( bool bWordLine )
+{
+    if (const_cast<const ImplType&>(mpImplFont)->mbWordLine != bWordLine)
+        mpImplFont->mbWordLine = bWordLine;
+}
+
+Font& Font::operator=( const vcl::Font& rFont )
+{
+    mpImplFont = rFont.mpImplFont;
+    return *this;
+}
+
+Font& Font::operator=( vcl::Font&& rFont ) noexcept
+{
+    mpImplFont = std::move(rFont.mpImplFont);
+    return *this;
+}
+
+bool Font::operator==( const vcl::Font& rFont ) const
+{
+    return mpImplFont == rFont.mpImplFont;
+}
+
+bool Font::EqualIgnoreColor( const vcl::Font& rFont ) const
+{
+    return mpImplFont->EqualIgnoreColor( *rFont.mpImplFont );
+}
+
+size_t Font::GetHashValue() const
+{
+    return mpImplFont->GetHashValue();
+}
+
+size_t Font::GetHashValueIgnoreColor() const
+{
+    return mpImplFont->GetHashValueIgnoreColor();
+}
+
+void Font::Merge( const vcl::Font& rFont )
+{
+    if ( !rFont.GetFamilyName().isEmpty() )
+    {
+        SetFamilyName( rFont.GetFamilyName() );
+        SetStyleName( rFont.GetStyleName() );
+        SetCharSet( GetCharSet() );
+        SetLanguageTag( rFont.GetLanguageTag() );
+        SetCJKContextLanguageTag( rFont.GetCJKContextLanguageTag() );
+        // don't use access methods here, might lead to AskConfig(), if DONTKNOW
+        SetFamily( rFont.mpImplFont->GetFamilyTypeNoAsk() );
+        SetPitch( rFont.mpImplFont->GetPitchNoAsk() );
+    }
+
+    // don't use access methods here, might lead to AskConfig(), if DONTKNOW
+    if ( rFont.mpImplFont->GetWeightNoAsk() != WEIGHT_DONTKNOW )
+        SetWeight( rFont.GetWeight() );
+    if ( rFont.mpImplFont->GetItalicNoAsk() != ITALIC_DONTKNOW )
+        SetItalic( rFont.GetItalic() );
+    if ( rFont.mpImplFont->GetWidthTypeNoAsk() != WIDTH_DONTKNOW )
+        SetWidthType( rFont.GetWidthType() );
+
+    if ( rFont.GetFontSize().Height() )
+        SetFontSize( rFont.GetFontSize() );
+    if ( rFont.GetUnderline() != LINESTYLE_DONTKNOW )
+    {
+        SetUnderline( rFont.GetUnderline() );
+        SetWordLineMode( rFont.IsWordLineMode() );
+    }
+    if ( rFont.GetOverline() != LINESTYLE_DONTKNOW )
+    {
+        SetOverline( rFont.GetOverline() );
+        SetWordLineMode( rFont.IsWordLineMode() );
+    }
+    if ( rFont.GetStrikeout() != STRIKEOUT_DONTKNOW )
+    {
+        SetStrikeout( rFont.GetStrikeout() );
+        SetWordLineMode( rFont.IsWordLineMode() );
+    }
+
+    // Defaults?
+    SetOrientation( rFont.GetOrientation() );
+    SetVertical( rFont.IsVertical() );
+    SetEmphasisMark( rFont.GetEmphasisMark() );
+    SetKerning( rFont.IsKerning() ? FontKerning::FontSpecific : FontKerning::NONE );
+    SetOutline( rFont.IsOutline() );
+    SetShadow( rFont.IsShadow() );
+    SetRelief( rFont.GetRelief() );
+}
+
+void Font::GetFontAttributes( FontAttributes& rAttrs ) const
+{
+    rAttrs.SetFamilyName( mpImplFont->GetFamilyName() );
+    rAttrs.SetStyleName( mpImplFont->maStyleName );
+    rAttrs.SetFamilyType( mpImplFont->GetFamilyTypeNoAsk() );
+    rAttrs.SetPitch( mpImplFont->GetPitchNoAsk() );
+    rAttrs.SetItalic( mpImplFont->GetItalicNoAsk() );
+    rAttrs.SetWeight( mpImplFont->GetWeightNoAsk() );
+    rAttrs.SetWidthType( WIDTH_DONTKNOW );
+    rAttrs.SetSymbolFlag( mpImplFont->GetCharSet() == RTL_TEXTENCODING_SYMBOL );
+}
+
+// tdf#127471 for corrections on EMF/WMF we need the AvgFontWidth in Windows-specific notation
+tools::Long Font::GetOrCalculateAverageFontWidth() const
+{
+    if(0 == mpImplFont->GetCalculatedAverageFontWidth())
+    {
+        // VirtualDevice is not thread safe
+        SolarMutexGuard aGuard;
+
+        // create unscaled copy of font (this), a VirtualDevice and set it there
+        vcl::Font aUnscaledFont(*this);
+        ScopedVclPtr<VirtualDevice> pTempVirtualDevice(VclPtr<VirtualDevice>::Create());
+        aUnscaledFont.SetAverageFontWidth(0);
+        pTempVirtualDevice->SetFont(aUnscaledFont);
+
+#ifdef _WIN32
+        // on Windows systems use FontMetric to get/create AverageFontWidth from system
+        const FontMetric aMetric(pTempVirtualDevice->GetFontMetric());
+        const_cast<Font*>(this)->mpImplFont->SetCalculatedAverageFontWidth(aMetric.GetAverageFontWidth());
+#else
+        // On non-Windows systems we need to calculate AvgFontWidth
+        // as close as possible (discussion see documentation in task),
+        // so calculate it. For discussion of method used, see task
+        // buffer measure string creation, will always use the same
+        static constexpr OUStringLiteral aMeasureString
+            = u"\u0020\u0021\u0022\u0023\u0024\u0025\u0026\u0027"
+               "\u0028\u0029\u002A\u002B\u002C\u002D\u002E\u002F"
+               "\u0030\u0031\u0032\u0033\u0034\u0035\u0036\u0037"
+               "\u0038\u0039\u003A\u003B\u003C\u003D\u003E\u003F"
+               "\u0040\u0041\u0042\u0043\u0044\u0045\u0046\u0047"
+               "\u0048\u0049\u004A\u004B\u004C\u004D\u004E\u004F"
+               "\u0050\u0051\u0052\u0053\u0054\u0055\u0056\u0057"
+               "\u0058\u0059\u005A\u005B\u005C\u005D\u005E\u005F"
+               "\u0060\u0061\u0062\u0063\u0064\u0065\u0066\u0067"
+               "\u0068\u0069\u006A\u006B\u006C\u006D\u006E\u006F"
+               "\u0070\u0071\u0072\u0073\u0074\u0075\u0076\u0077"
+               "\u0078\u0079\u007A\u007B\u007C\u007D\u007E";
+
+        const double fAverageFontWidth(
+            pTempVirtualDevice->GetTextWidth(aMeasureString) /
+            static_cast<double>(aMeasureString.getLength()));
+        const_cast<Font*>(this)->mpImplFont->SetCalculatedAverageFontWidth(basegfx::fround(fAverageFontWidth));
+#endif
+    }
+
+    return mpImplFont->GetCalculatedAverageFontWidth();
+}
+
+SvStream& ReadImplFont( SvStream& rIStm, ImplFont& rImplFont, tools::Long& rnNormedFontScaling )
+{
+    VersionCompatRead aCompat( rIStm );
+    sal_uInt16      nTmp16(0);
+    sal_Int16       nTmps16(0);
+    bool            bTmp(false);
+    sal_uInt8       nTmp8(0);
+
+    rImplFont.SetFamilyName( rIStm.ReadUniOrByteString(rIStm.GetStreamCharSet()) );
+    rImplFont.maStyleName = rIStm.ReadUniOrByteString(rIStm.GetStreamCharSet());
+    TypeSerializer aSerializer(rIStm);
+    aSerializer.readSize(rImplFont.maAverageFontSize);
+
+    static const bool bFuzzing = utl::ConfigManager::IsFuzzing();
+    if (bFuzzing)
+    {
+        if (rImplFont.maAverageFontSize.Width() > 8192)
+        {
+            SAL_WARN("vcl.gdi", "suspicious average width of: " << rImplFont.maAverageFontSize.Width());
+            rImplFont.maAverageFontSize.setWidth(8192);
+        }
+    }
+
+    rIStm.ReadUInt16( nTmp16 ); rImplFont.SetCharSet( static_cast<rtl_TextEncoding>(nTmp16) );
+    rIStm.ReadUInt16( nTmp16 ); rImplFont.SetFamilyType( static_cast<FontFamily>(nTmp16) );
+    rIStm.ReadUInt16( nTmp16 ); rImplFont.SetPitch( static_cast<FontPitch>(nTmp16) );
+    rIStm.ReadUInt16( nTmp16 ); rImplFont.SetWeight( static_cast<FontWeight>(nTmp16) );
+    rIStm.ReadUInt16( nTmp16 ); rImplFont.meUnderline = static_cast<FontLineStyle>(nTmp16);
+    rIStm.ReadUInt16( nTmp16 ); rImplFont.meStrikeout = static_cast<FontStrikeout>(nTmp16);
+    rIStm.ReadUInt16( nTmp16 ); rImplFont.SetItalic( static_cast<FontItalic>(nTmp16) );
+    rIStm.ReadUInt16( nTmp16 ); rImplFont.maLanguageTag.reset( LanguageType(nTmp16) );
+    rIStm.ReadUInt16( nTmp16 ); rImplFont.meWidthType = static_cast<FontWidth>(nTmp16);
+
+    rIStm.ReadInt16( nTmps16 ); rImplFont.mnOrientation = Degree10(nTmps16);
+
+    rIStm.ReadCharAsBool( bTmp ); rImplFont.mbWordLine = bTmp;
+    rIStm.ReadCharAsBool( bTmp ); rImplFont.mbOutline = bTmp;
+    rIStm.ReadCharAsBool( bTmp ); rImplFont.mbShadow = bTmp;
+    rIStm.ReadUChar( nTmp8 ); rImplFont.meKerning = static_cast<FontKerning>(nTmp8);
+
+    if( aCompat.GetVersion() >= 2 )
+    {
+        rIStm.ReadUChar( nTmp8 );     rImplFont.meRelief = static_cast<FontRelief>(nTmp8);
+        rIStm.ReadUInt16( nTmp16 );   rImplFont.maCJKLanguageTag.reset( LanguageType(nTmp16) );
+        rIStm.ReadCharAsBool( bTmp ); rImplFont.mbVertical = bTmp;
+        rIStm.ReadUInt16( nTmp16 );   rImplFont.meEmphasisMark = static_cast<FontEmphasisMark>(nTmp16);
+    }
+
+    if( aCompat.GetVersion() >= 3 )
+    {
+        rIStm.ReadUInt16( nTmp16 ); rImplFont.meOverline = static_cast<FontLineStyle>(nTmp16);
+    }
+
+    // tdf#127471 read NormedFontScaling
+    if( aCompat.GetVersion() >= 4 )
+    {
+        sal_Int32 nNormedFontScaling(0);
+        rIStm.ReadInt32(nNormedFontScaling);
+        rnNormedFontScaling = nNormedFontScaling;
+    }
+
+    // Relief
+    // CJKContextLanguage
+
+    return rIStm;
+}
+
+SvStream& WriteImplFont( SvStream& rOStm, const ImplFont& rImplFont, tools::Long nNormedFontScaling )
+{
+    // tdf#127471 increase to version 4
+    VersionCompatWrite aCompat( rOStm, 4 );
+
+    TypeSerializer aSerializer(rOStm);
+    rOStm.WriteUniOrByteString( rImplFont.GetFamilyName(), rOStm.GetStreamCharSet() );
+    rOStm.WriteUniOrByteString( rImplFont.GetStyleName(), rOStm.GetStreamCharSet() );
+    aSerializer.writeSize(rImplFont.maAverageFontSize);
+
+    rOStm.WriteUInt16( GetStoreCharSet( rImplFont.GetCharSet() ) );
+    rOStm.WriteUInt16( rImplFont.GetFamilyTypeNoAsk() );
+    rOStm.WriteUInt16( rImplFont.GetPitchNoAsk() );
+    rOStm.WriteUInt16( rImplFont.GetWeightNoAsk() );
+    rOStm.WriteUInt16( rImplFont.meUnderline );
+    rOStm.WriteUInt16( rImplFont.meStrikeout );
+    rOStm.WriteUInt16( rImplFont.GetItalicNoAsk() );
+    rOStm.WriteUInt16( static_cast<sal_uInt16>(rImplFont.maLanguageTag.getLanguageType( false)) );
+    rOStm.WriteUInt16( rImplFont.GetWidthTypeNoAsk() );
+
+    rOStm.WriteInt16( rImplFont.mnOrientation.get() );
+
+    rOStm.WriteBool( rImplFont.mbWordLine );
+    rOStm.WriteBool( rImplFont.mbOutline );
+    rOStm.WriteBool( rImplFont.mbShadow );
+    rOStm.WriteUChar( static_cast<sal_uInt8>(rImplFont.meKerning) );
+
+    // new in version 2
+    rOStm.WriteUChar( static_cast<unsigned char>(rImplFont.meRelief) );
+    rOStm.WriteUInt16( static_cast<sal_uInt16>(rImplFont.maCJKLanguageTag.getLanguageType( false)) );
+    rOStm.WriteBool( rImplFont.mbVertical );
+    rOStm.WriteUInt16( static_cast<sal_uInt16>(rImplFont.meEmphasisMark) );
+
+    // new in version 3
+    rOStm.WriteUInt16( rImplFont.meOverline );
+
+    // new in version 4, NormedFontScaling
+    rOStm.WriteInt32(nNormedFontScaling);
+
+    return rOStm;
+}
+
+SvStream& ReadFont( SvStream& rIStm, vcl::Font& rFont )
+{
+    // tdf#127471 try to read NormedFontScaling
+    tools::Long nNormedFontScaling(0);
+    SvStream& rRetval(ReadImplFont( rIStm, *rFont.mpImplFont, nNormedFontScaling ));
+
+    if (nNormedFontScaling > 0)
+    {
+#ifdef _WIN32
+        // we run on windows and a NormedFontScaling was written
+        if(rFont.GetFontSize().getWidth() == nNormedFontScaling)
+        {
+            // the writing producer was running on a non-windows system, adapt to needed windows
+            // system-specific pre-multiply
+            const tools::Long nHeight(std::max<tools::Long>(rFont.GetFontSize().getHeight(), 0));
+            sal_uInt32 nScaledWidth(0);
+
+            if(nHeight > 0)
+            {
+                vcl::Font aUnscaledFont(rFont);
+                aUnscaledFont.SetAverageFontWidth(0);
+                const FontMetric aUnscaledFontMetric(Application::GetDefaultDevice()->GetFontMetric(aUnscaledFont));
+
+                if (nHeight > 0)
+                {
+                    const double fScaleFactor(static_cast<double>(nNormedFontScaling) / static_cast<double>(nHeight));
+                    nScaledWidth = basegfx::fround(static_cast<double>(aUnscaledFontMetric.GetAverageFontWidth()) * fScaleFactor);
+                }
+            }
+
+            rFont.SetAverageFontWidth(nScaledWidth);
+        }
+        else
+        {
+            // the writing producer was on a windows system, correct pre-multiplied value
+            // is already set, nothing to do. Ignore 2nd value. Here a check
+            // could be done if adapting the 2nd, NormedFontScaling value would be similar to
+            // the set value for plausibility reasons
+        }
+#else
+        // we do not run on windows and a NormedFontScaling was written
+        if(rFont.GetFontSize().getWidth() == nNormedFontScaling)
+        {
+            // the writing producer was not on a windows system, correct value
+            // already set, nothing to do
+        }
+        else
+        {
+            // the writing producer was on a windows system, correct FontScaling.
+            // The correct non-pre-multiplied value is the 2nd one, use it
+            rFont.SetAverageFontWidth(nNormedFontScaling);
+        }
+#endif
+    }
+
+    return rRetval;
+}
+
+SvStream& WriteFont( SvStream& rOStm, const vcl::Font& rFont )
+{
+    // tdf#127471 prepare NormedFontScaling for additional export
+    tools::Long nNormedFontScaling(rFont.GetFontSize().getWidth());
+
+    // FontScaling usage at vcl-Font is detected by checking that FontWidth != 0
+    if (nNormedFontScaling > 0)
+    {
+        const tools::Long nHeight(std::max<tools::Long>(rFont.GetFontSize().getHeight(), 0));
+
+        // check for negative height
+        if(0 == nHeight)
+        {
+            nNormedFontScaling = 0;
+        }
+        else
+        {
+#ifdef _WIN32
+            // for WIN32 the value is pre-multiplied with AverageFontWidth
+            // which makes it system-dependent. Turn that back to have the
+            // normed non-windows form of it for export as 2nd value
+            vcl::Font aUnscaledFont(rFont);
+            aUnscaledFont.SetAverageFontWidth(0);
+            const FontMetric aUnscaledFontMetric(
+                Application::GetDefaultDevice()->GetFontMetric(aUnscaledFont));
+
+            if (aUnscaledFontMetric.GetAverageFontWidth() > 0)
+            {
+                const double fScaleFactor(
+                    static_cast<double>(nNormedFontScaling)
+                    / static_cast<double>(aUnscaledFontMetric.GetAverageFontWidth()));
+                nNormedFontScaling = static_cast<tools::Long>(fScaleFactor * nHeight);
+            }
+#endif
+        }
+    }
+
+    return WriteImplFont( rOStm, *rFont.mpImplFont, nNormedFontScaling );
+}
+
+namespace
+{
+    bool identifyTrueTypeFont( const void* i_pBuffer, sal_uInt32 i_nSize, Font& o_rResult )
+    {
+        bool bResult = false;
+        TrueTypeFont* pTTF = nullptr;
+        if( OpenTTFontBuffer( i_pBuffer, i_nSize, 0, &pTTF ) == SFErrCodes::Ok )
+        {
+            TTGlobalFontInfo aInfo;
+            GetTTGlobalFontInfo( pTTF, &aInfo );
+            // most importantly: the family name
+            if( aInfo.ufamily )
+                o_rResult.SetFamilyName( OUString(aInfo.ufamily) );
+            else if( aInfo.family )
+                o_rResult.SetFamilyName( OStringToOUString( aInfo.family, RTL_TEXTENCODING_ASCII_US ) );
+            // set weight
+            if( aInfo.weight )
+            {
+                if( aInfo.weight < FW_EXTRALIGHT )
+                    o_rResult.SetWeight( WEIGHT_THIN );
+                else if( aInfo.weight < FW_LIGHT )
+                    o_rResult.SetWeight( WEIGHT_ULTRALIGHT );
+                else if( aInfo.weight < FW_NORMAL )
+                    o_rResult.SetWeight( WEIGHT_LIGHT );
+                else if( aInfo.weight < FW_MEDIUM )
+                    o_rResult.SetWeight( WEIGHT_NORMAL );
+                else if( aInfo.weight < FW_SEMIBOLD )
+                    o_rResult.SetWeight( WEIGHT_MEDIUM );
+                else if( aInfo.weight < FW_BOLD )
+                    o_rResult.SetWeight( WEIGHT_SEMIBOLD );
+                else if( aInfo.weight < FW_EXTRABOLD )
+                    o_rResult.SetWeight( WEIGHT_BOLD );
+                else if( aInfo.weight < FW_BLACK )
+                    o_rResult.SetWeight( WEIGHT_ULTRABOLD );
+                else
+                    o_rResult.SetWeight( WEIGHT_BLACK );
+            }
+            else
+                o_rResult.SetWeight( (aInfo.macStyle & 1) ? WEIGHT_BOLD : WEIGHT_NORMAL );
+            // set width
+            if( aInfo.width )
+            {
+                if( aInfo.width == FWIDTH_ULTRA_CONDENSED )
+                    o_rResult.SetAverageFontWidth( WIDTH_ULTRA_CONDENSED );
+                else if( aInfo.width == FWIDTH_EXTRA_CONDENSED )
+                    o_rResult.SetAverageFontWidth( WIDTH_EXTRA_CONDENSED );
+                else if( aInfo.width == FWIDTH_CONDENSED )
+                    o_rResult.SetAverageFontWidth( WIDTH_CONDENSED );
+                else if( aInfo.width == FWIDTH_SEMI_CONDENSED )
+                    o_rResult.SetAverageFontWidth( WIDTH_SEMI_CONDENSED );
+                else if( aInfo.width == FWIDTH_NORMAL )
+                    o_rResult.SetAverageFontWidth( WIDTH_NORMAL );
+                else if( aInfo.width == FWIDTH_SEMI_EXPANDED )
+                    o_rResult.SetAverageFontWidth( WIDTH_SEMI_EXPANDED );
+                else if( aInfo.width == FWIDTH_EXPANDED )
+                    o_rResult.SetAverageFontWidth( WIDTH_EXPANDED );
+                else if( aInfo.width == FWIDTH_EXTRA_EXPANDED )
+                    o_rResult.SetAverageFontWidth( WIDTH_EXTRA_EXPANDED );
+                else if( aInfo.width >= FWIDTH_ULTRA_EXPANDED )
+                    o_rResult.SetAverageFontWidth( WIDTH_ULTRA_EXPANDED );
+            }
+            // set italic
+            o_rResult.SetItalic( (aInfo.italicAngle != 0) ? ITALIC_NORMAL : ITALIC_NONE );
+
+            // set pitch
+            o_rResult.SetPitch( (aInfo.pitch == 0) ? PITCH_VARIABLE : PITCH_FIXED );
+
+            // set style name
+            if( aInfo.usubfamily )
+                o_rResult.SetStyleName( OUString( aInfo.usubfamily ) );
+            else if( aInfo.subfamily )
+                o_rResult.SetStyleName( OUString::createFromAscii( aInfo.subfamily ) );
+
+            // cleanup
+            CloseTTFont( pTTF );
+            // success
+            bResult = true;
+        }
+        return bResult;
+    }
+
+    struct WeightSearchEntry
+    {
+        const char* string;
+        int         string_len;
+        FontWeight  weight;
+
+        bool operator<( const WeightSearchEntry& rRight ) const
+        {
+            return rtl_str_compareIgnoreAsciiCase_WithLength( string, string_len, rRight.string, rRight.string_len ) < 0;
+        }
+    }
+    const weight_table[] =
+    {
+        { "black", 5, WEIGHT_BLACK },
+        { "bold", 4, WEIGHT_BOLD },
+        { "book", 4, WEIGHT_LIGHT },
+        { "demi", 4, WEIGHT_SEMIBOLD },
+        { "heavy", 5, WEIGHT_BLACK },
+        { "light", 5, WEIGHT_LIGHT },
+        { "medium", 6, WEIGHT_MEDIUM },
+        { "regular", 7, WEIGHT_NORMAL },
+        { "super", 5, WEIGHT_ULTRABOLD },
+        { "thin", 4, WEIGHT_THIN }
+    };
+
+    bool identifyType1Font( const char* i_pBuffer, sal_uInt32 i_nSize, Font& o_rResult )
+    {
+        // might be a type1, find eexec
+        const char* pStream = i_pBuffer;
+        const char* const pExec = "eexec";
+        const char* pExecPos = std::search( pStream, pStream+i_nSize, pExec, pExec+5 );
+        if( pExecPos != pStream+i_nSize)
+        {
+            // find /FamilyName entry
+            static const char* const pFam = "/FamilyName";
+            const char* pFamPos = std::search( pStream, pExecPos, pFam, pFam+11 );
+            if( pFamPos != pExecPos )
+            {
+                // extract the string value behind /FamilyName
+                const char* pOpen = pFamPos+11;
+                while( pOpen < pExecPos && *pOpen != '(' )
+                    pOpen++;
+                const char* pClose = pOpen;
+                while( pClose < pExecPos && *pClose != ')' )
+                    pClose++;
+                if( pClose - pOpen > 1 )
+                {
+                    o_rResult.SetFamilyName( OStringToOUString( std::string_view( pOpen+1, pClose-pOpen-1 ), RTL_TEXTENCODING_ASCII_US ) );
+                }
+            }
+
+            // parse /ItalicAngle
+            static const char* const pItalic = "/ItalicAngle";
+            const char* pItalicPos = std::search( pStream, pExecPos, pItalic, pItalic+12 );
+            if( pItalicPos != pExecPos )
+            {
+                const char* pItalicEnd = pItalicPos + 12;
+                auto nItalic = rtl_str_toInt64_WithLength(pItalicEnd, 10, pExecPos - pItalicEnd);
+                o_rResult.SetItalic( (nItalic != 0) ? ITALIC_NORMAL : ITALIC_NONE );
+            }
+
+            // parse /Weight
+            static const char* const pWeight = "/Weight";
+            const char* pWeightPos = std::search( pStream, pExecPos, pWeight, pWeight+7 );
+            if( pWeightPos != pExecPos )
+            {
+                // extract the string value behind /Weight
+                const char* pOpen = pWeightPos+7;
+                while( pOpen < pExecPos && *pOpen != '(' )
+                    pOpen++;
+                const char* pClose = pOpen;
+                while( pClose < pExecPos && *pClose != ')' )
+                    pClose++;
+                if( pClose - pOpen > 1 )
+                {
+                    WeightSearchEntry aEnt;
+                    aEnt.string = pOpen+1;
+                    aEnt.string_len = (pClose-pOpen)-1;
+                    aEnt.weight = WEIGHT_NORMAL;
+                    WeightSearchEntry const * pFound = std::lower_bound( std::begin(weight_table), std::end(weight_table), aEnt );
+                    if( pFound != std::end(weight_table) &&
+                        rtl_str_compareIgnoreAsciiCase_WithLength( pFound->string, pFound->string_len, aEnt.string, aEnt.string_len) == 0 )
+                        o_rResult.SetWeight( pFound->weight );
+                }
+            }
+
+            // parse isFixedPitch
+            static const char* const pFixed = "/isFixedPitch";
+            const char* pFixedPos = std::search( pStream, pExecPos, pFixed, pFixed+13 );
+            if( pFixedPos != pExecPos )
+            {
+                // skip whitespace
+                while( pFixedPos < pExecPos-4 &&
+                       ( *pFixedPos == ' '  ||
+                         *pFixedPos == '\t' ||
+                         *pFixedPos == '\r' ||
+                         *pFixedPos == '\n' ) )
+                {
+                    pFixedPos++;
+                }
+                // find "true" value
+                if( rtl_str_compareIgnoreAsciiCase_WithLength( pFixedPos, 4, "true", 4 ) == 0 )
+                    o_rResult.SetPitch( PITCH_FIXED );
+                else
+                    o_rResult.SetPitch( PITCH_VARIABLE );
+            }
+        }
+        return false;
+    }
+}
+
+Font Font::identifyFont( const void* i_pBuffer, sal_uInt32 i_nSize )
+{
+    Font aResult;
+    if( ! identifyTrueTypeFont( i_pBuffer, i_nSize, aResult ) )
+    {
+        const char* pStream = static_cast<const char*>(i_pBuffer);
+        if( pStream && i_nSize > 100 &&
+             *pStream == '%' && pStream[1] == '!' )
+        {
+            identifyType1Font( pStream, i_nSize, aResult );
+        }
+    }
+
+    return aResult;
+}
+
+// The inlines from the font.hxx header are now instantiated for pImpl-ification
+const Color& Font::GetColor() const { return mpImplFont->maColor; }
+const Color& Font::GetFillColor() const { return mpImplFont->maFillColor; }
+bool Font::IsTransparent() const { return mpImplFont->mbTransparent; }
+
+TextAlign Font::GetAlignment() const { return mpImplFont->GetAlignment(); }
+
+const OUString& Font::GetFamilyName() const { return mpImplFont->GetFamilyName(); }
+const OUString& Font::GetStyleName() const { return mpImplFont->maStyleName; }
+
+const Size& Font::GetFontSize() const { return mpImplFont->GetFontSize(); }
+void Font::SetFontHeight( tools::Long nHeight ) { SetFontSize( Size( std::as_const(mpImplFont)->GetFontSize().Width(), nHeight ) ); }
+tools::Long Font::GetFontHeight() const { return mpImplFont->GetFontSize().Height(); }
+void Font::SetAverageFontWidth( tools::Long nWidth ) { SetFontSize( Size( nWidth, std::as_const(mpImplFont)->GetFontSize().Height() ) ); }
+tools::Long Font::GetAverageFontWidth() const { return mpImplFont->GetFontSize().Width(); }
+
+rtl_TextEncoding Font::GetCharSet() const { return mpImplFont->GetCharSet(); }
+
+const LanguageTag& Font::GetLanguageTag() const { return mpImplFont->maLanguageTag; }
+const LanguageTag& Font::GetCJKContextLanguageTag() const { return mpImplFont->maCJKLanguageTag; }
+LanguageType Font::GetLanguage() const { return mpImplFont->maLanguageTag.getLanguageType( false); }
+LanguageType Font::GetCJKContextLanguage() const { return mpImplFont->maCJKLanguageTag.getLanguageType( false); }
+
+Degree10 Font::GetOrientation() const { return mpImplFont->mnOrientation; }
+bool Font::IsVertical() const { return mpImplFont->mbVertical; }
+FontKerning Font::GetKerning() const { return mpImplFont->meKerning; }
+
+FontPitch Font::GetPitch() { return mpImplFont->GetPitch(); }
+FontWeight Font::GetWeight() { return mpImplFont->GetWeight(); }
+FontWidth Font::GetWidthType() { return mpImplFont->GetWidthType(); }
+FontItalic Font::GetItalic() { return mpImplFont->GetItalic(); }
+FontFamily Font::GetFamilyType() { return mpImplFont->GetFamilyType(); }
+
+FontPitch Font::GetPitch() const { return mpImplFont->GetPitchNoAsk(); }
+FontWeight Font::GetWeight() const { return mpImplFont->GetWeightNoAsk(); }
+FontWidth Font::GetWidthType() const { return mpImplFont->GetWidthTypeNoAsk(); }
+FontItalic Font::GetItalic() const { return mpImplFont->GetItalicNoAsk(); }
+FontFamily Font::GetFamilyType() const { return mpImplFont->GetFamilyTypeNoAsk(); }
+
+int Font::GetQuality() const { return mpImplFont->GetQuality(); }
+void Font::SetQuality( int nQuality ) { mpImplFont->SetQuality( nQuality ); }
+void Font::IncreaseQualityBy( int nQualityAmount ) { mpImplFont->IncreaseQualityBy( nQualityAmount ); }
+void Font::DecreaseQualityBy( int nQualityAmount ) { mpImplFont->DecreaseQualityBy( nQualityAmount ); }
+
+bool Font::IsOutline() const { return mpImplFont->mbOutline; }
+bool Font::IsShadow() const { return mpImplFont->mbShadow; }
+FontRelief Font::GetRelief() const { return mpImplFont->meRelief; }
+FontLineStyle Font::GetUnderline() const { return mpImplFont->meUnderline; }
+FontLineStyle Font::GetOverline()  const { return mpImplFont->meOverline; }
+FontStrikeout Font::GetStrikeout() const { return mpImplFont->meStrikeout; }
+FontEmphasisMark Font::GetEmphasisMark() const { return mpImplFont->meEmphasisMark; }
+bool Font::IsWordLineMode() const { return mpImplFont->mbWordLine; }
+bool Font::IsSameInstance( const vcl::Font& rFont ) const { return (mpImplFont == rFont.mpImplFont); }
+
+
+ImplFont::ImplFont() :
+    meWeight( WEIGHT_DONTKNOW ),
+    meFamily( FAMILY_DONTKNOW ),
+    mePitch( PITCH_DONTKNOW ),
+    meWidthType( WIDTH_DONTKNOW ),
+    meItalic( ITALIC_NONE ),
+    meAlign( ALIGN_TOP ),
+    meUnderline( LINESTYLE_NONE ),
+    meOverline( LINESTYLE_NONE ),
+    meStrikeout( STRIKEOUT_NONE ),
+    meRelief( FontRelief::NONE ),
+    meEmphasisMark( FontEmphasisMark::NONE ),
+    meKerning( FontKerning::FontSpecific ),
+    meCharSet( RTL_TEXTENCODING_DONTKNOW ),
+    maLanguageTag( LANGUAGE_DONTKNOW ),
+    maCJKLanguageTag( LANGUAGE_DONTKNOW ),
+    mbSymbolFlag( false ),
+    mbOutline( false ),
+    mbConfigLookup( false ),
+    mbShadow( false ),
+    mbVertical( false ),
+    mbTransparent( true ),
+    maColor( COL_TRANSPARENT ),
+    maFillColor( COL_TRANSPARENT ),
+    mbWordLine( false ),
+    mnOrientation( 0 ),
+    mnQuality( 0 ),
+    mnCalculatedAverageFontWidth( 0 )
+{}
+
+ImplFont::ImplFont( const ImplFont& rImplFont ) :
+    maFamilyName( rImplFont.maFamilyName ),
+    maStyleName( rImplFont.maStyleName ),
+    meWeight( rImplFont.meWeight ),
+    meFamily( rImplFont.meFamily ),
+    mePitch( rImplFont.mePitch ),
+    meWidthType( rImplFont.meWidthType ),
+    meItalic( rImplFont.meItalic ),
+    meAlign( rImplFont.meAlign ),
+    meUnderline( rImplFont.meUnderline ),
+    meOverline( rImplFont.meOverline ),
+    meStrikeout( rImplFont.meStrikeout ),
+    meRelief( rImplFont.meRelief ),
+    meEmphasisMark( rImplFont.meEmphasisMark ),
+    meKerning( rImplFont.meKerning ),
+    maAverageFontSize( rImplFont.maAverageFontSize ),
+    meCharSet( rImplFont.meCharSet ),
+    maLanguageTag( rImplFont.maLanguageTag ),
+    maCJKLanguageTag( rImplFont.maCJKLanguageTag ),
+    mbSymbolFlag( rImplFont.mbSymbolFlag ),
+    mbOutline( rImplFont.mbOutline ),
+    mbConfigLookup( rImplFont.mbConfigLookup ),
+    mbShadow( rImplFont.mbShadow ),
+    mbVertical( rImplFont.mbVertical ),
+    mbTransparent( rImplFont.mbTransparent ),
+    maColor( rImplFont.maColor ),
+    maFillColor( rImplFont.maFillColor ),
+    mbWordLine( rImplFont.mbWordLine ),
+    mnOrientation( rImplFont.mnOrientation ),
+    mnQuality( rImplFont.mnQuality ),
+    mnCalculatedAverageFontWidth( rImplFont.mnCalculatedAverageFontWidth )
+{}
+
+bool ImplFont::operator==( const ImplFont& rOther ) const
+{
+    if(!EqualIgnoreColor( rOther ))
+        return false;
+
+    if( (maColor        != rOther.maColor)
+    ||  (maFillColor    != rOther.maFillColor) )
+        return false;
+
+    return true;
+}
+
+bool ImplFont::EqualIgnoreColor( const ImplFont& rOther ) const
+{
+    // equality tests split up for easier debugging
+    if( (meWeight   != rOther.meWeight)
+    ||  (meItalic   != rOther.meItalic)
+    ||  (meFamily   != rOther.meFamily)
+    ||  (mePitch    != rOther.mePitch) )
+        return false;
+
+    if( (meCharSet        != rOther.meCharSet)
+    ||  (maLanguageTag    != rOther.maLanguageTag)
+    ||  (maCJKLanguageTag != rOther.maCJKLanguageTag)
+    ||  (meAlign          != rOther.meAlign) )
+        return false;
+
+    if( (maAverageFontSize       != rOther.maAverageFontSize)
+    ||  (mnOrientation  != rOther.mnOrientation)
+    ||  (mbVertical     != rOther.mbVertical) )
+        return false;
+
+    if( (maFamilyName   != rOther.maFamilyName)
+    ||  (maStyleName    != rOther.maStyleName) )
+        return false;
+
+    if( (meUnderline    != rOther.meUnderline)
+    ||  (meOverline     != rOther.meOverline)
+    ||  (meStrikeout    != rOther.meStrikeout)
+    ||  (meRelief       != rOther.meRelief)
+    ||  (meEmphasisMark != rOther.meEmphasisMark)
+    ||  (mbWordLine     != rOther.mbWordLine)
+    ||  (mbOutline      != rOther.mbOutline)
+    ||  (mbShadow       != rOther.mbShadow)
+    ||  (meKerning      != rOther.meKerning)
+    ||  (mbTransparent  != rOther.mbTransparent) )
+        return false;
+
+    return true;
+}
+
+size_t ImplFont::GetHashValue() const
+{
+    size_t hash = GetHashValueIgnoreColor();
+    o3tl::hash_combine( hash, static_cast<sal_uInt32>( maColor ));
+    o3tl::hash_combine( hash, static_cast<sal_uInt32>( maFillColor ));
+    return hash;
+}
+
+size_t ImplFont::GetHashValueIgnoreColor() const
+{
+    size_t hash = 0;
+
+    o3tl::hash_combine( hash, meWeight );
+    o3tl::hash_combine( hash, meItalic );
+    o3tl::hash_combine( hash, meFamily );
+    o3tl::hash_combine( hash, mePitch );
+
+    o3tl::hash_combine( hash, meCharSet );
+    o3tl::hash_combine( hash, maLanguageTag.getLanguageType( false ).get());
+    o3tl::hash_combine( hash, maCJKLanguageTag.getLanguageType( false ).get());
+    o3tl::hash_combine( hash, meAlign );
+
+    o3tl::hash_combine( hash, maAverageFontSize.GetHashValue());
+    o3tl::hash_combine( hash, mnOrientation.get());
+    o3tl::hash_combine( hash, mbVertical );
+
+    o3tl::hash_combine( hash, maFamilyName );
+    o3tl::hash_combine( hash, maStyleName );
+
+    o3tl::hash_combine( hash, meUnderline );
+    o3tl::hash_combine( hash, meOverline );
+    o3tl::hash_combine( hash, meStrikeout );
+    o3tl::hash_combine( hash, meRelief );
+    o3tl::hash_combine( hash, meEmphasisMark );
+    o3tl::hash_combine( hash, mbWordLine );
+    o3tl::hash_combine( hash, mbOutline );
+    o3tl::hash_combine( hash, mbShadow );
+    o3tl::hash_combine( hash, meKerning );
+    o3tl::hash_combine( hash, mbTransparent );
+
+    return hash;
+}
+
+void ImplFont::AskConfig()
+{
+    if( mbConfigLookup )
+        return;
+
+    mbConfigLookup = true;
+
+    // prepare the FontSubst configuration lookup
+    const utl::FontSubstConfiguration& rFontSubst = utl::FontSubstConfiguration::get();
+
+    OUString      aShortName;
+    OUString      aFamilyName;
+    ImplFontAttrs nType = ImplFontAttrs::None;
+    FontWeight  eWeight = WEIGHT_DONTKNOW;
+    FontWidth   eWidthType = WIDTH_DONTKNOW;
+    OUString    aMapName = GetEnglishSearchFontName( maFamilyName );
+
+    utl::FontSubstConfiguration::getMapName( aMapName,
+        aShortName, aFamilyName, eWeight, eWidthType, nType );
+
+    // lookup the font name in the configuration
+    const utl::FontNameAttr* pFontAttr = rFontSubst.getSubstInfo( aMapName );
+
+    // if the direct lookup failed try again with an alias name
+    if ( !pFontAttr && (aShortName != aMapName) )
+        pFontAttr = rFontSubst.getSubstInfo( aShortName );
+
+    if( pFontAttr )
+    {
+        // the font was found in the configuration
+        if( meFamily == FAMILY_DONTKNOW )
+        {
+            if ( pFontAttr->Type & ImplFontAttrs::Serif )
+                meFamily = FAMILY_ROMAN;
+            else if ( pFontAttr->Type & ImplFontAttrs::SansSerif )
+                meFamily = FAMILY_SWISS;
+            else if ( pFontAttr->Type & ImplFontAttrs::Typewriter )
+                meFamily = FAMILY_MODERN;
+            else if ( pFontAttr->Type & ImplFontAttrs::Italic )
+                meFamily = FAMILY_SCRIPT;
+            else if ( pFontAttr->Type & ImplFontAttrs::Decorative )
+                meFamily = FAMILY_DECORATIVE;
+        }
+
+        if( mePitch == PITCH_DONTKNOW )
+        {
+            if ( pFontAttr->Type & ImplFontAttrs::Fixed )
+                mePitch = PITCH_FIXED;
+        }
+    }
+
+    // if some attributes are still unknown then use the FontSubst magic
+    if( meFamily == FAMILY_DONTKNOW )
+    {
+        if( nType & ImplFontAttrs::Serif )
+            meFamily = FAMILY_ROMAN;
+        else if( nType & ImplFontAttrs::SansSerif )
+            meFamily = FAMILY_SWISS;
+        else if( nType & ImplFontAttrs::Typewriter )
+            meFamily = FAMILY_MODERN;
+        else if( nType & ImplFontAttrs::Italic )
+            meFamily = FAMILY_SCRIPT;
+        else if( nType & ImplFontAttrs::Decorative )
+            meFamily = FAMILY_DECORATIVE;
+    }
+
+    if( GetWeight() == WEIGHT_DONTKNOW )
+        SetWeight( eWeight );
+    if( meWidthType == WIDTH_DONTKNOW )
+        meWidthType = eWidthType;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */