include/vcl/font.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_VCL_FONT_HXX
  21 #define INCLUDED_VCL_FONT_HXX
  22
  23 #include <rtl/ustring.hxx>
  24 #include <sal/types.h>
  25 #include <vcl/dllapi.h>
  26 #include <tools/color.hxx>
  27 #include <tools/fontenum.hxx>
  28 #include <tools/long.hxx>
  29 #include <tools/degree.hxx>
  30 #include <i18nlangtag/lang.h>
  31 #include <vcl/fntstyle.hxx>
  32 #include <o3tl/cow_wrapper.hxx>
  33
  34 class Size;
  35 class LanguageTag;
  36 class SvStream;
  37 #define FontAlign TextAlign
  38
  39 class ImplFont;
  40 class FontAttributes;
  41 namespace vcl { class Font; }
  42 // need to first declare these outside the vcl namespace, or the friend declarations won't work right
  43 VCL_DLLPUBLIC SvStream&  ReadFont( SvStream& rIStm, vcl::Font& );
  44 VCL_DLLPUBLIC SvStream&  WriteFont( SvStream& rOStm, const vcl::Font& );
  45
  46 namespace vcl {
  47
  48 class SAL_WARN_UNUSED VCL_DLLPUBLIC Font
  49 {
  50 public:
  51     explicit            Font();
  52                         Font( const Font& ); // TODO make me explicit
  53                         Font( Font&& ) noexcept;
  54     explicit            Font( const OUString& rFamilyName, const Size& );
  55     explicit            Font( const OUString& rFamilyName, const OUString& rStyleName, const Size& );
  56     explicit            Font( FontFamily eFamily, const Size& );
  57     virtual             ~Font();
  58
  59     const OUString&     GetFamilyName() const;
  60     FontFamily          GetFamilyType();
  61     FontFamily          GetFamilyType() const;
  62     const OUString&     GetStyleName() const;
  63
  64     FontWeight          GetWeight();
  65     FontWeight          GetWeight() const;
  66     FontItalic          GetItalic();
  67     FontItalic          GetItalic() const;
  68     FontPitch           GetPitch();
  69     FontPitch           GetPitch() const;
  70     FontWidth           GetWidthType();
  71     FontWidth           GetWidthType() const;
  72     FontAlign           GetAlignment() const;
  73     rtl_TextEncoding    GetCharSet() const;
  74
  75     bool                IsSymbolFont() const;
  76
  77     void                SetFamilyName( const OUString& rFamilyName );
  78     void                SetStyleName( const OUString& rStyleName );
  79     void                SetFamily( FontFamily );
  80
  81     void                SetPitch( FontPitch ePitch );
  82     void                SetItalic( FontItalic );
  83     void                SetWeight( FontWeight );
  84     void                SetWidthType( FontWidth );
  85     void                SetAlignment( FontAlign );
  86     void                SetCharSet( rtl_TextEncoding );
  87
  88     void                SetSymbolFlag( bool );
  89
  90     // Device dependent functions
  91     int                 GetQuality() const;
  92
  93     void                SetQuality(int);
  94     void                IncreaseQualityBy(int);
  95     void                DecreaseQualityBy(int);
  96
  97     // setting the color on the font is obsolete, the only remaining
  98     // valid use is for keeping backward compatibility with old MetaFiles
  99     const Color&        GetColor() const;
 100     const Color&        GetFillColor() const;
 101
 102     bool                IsTransparent() const;
 103
 104     void                SetColor( const Color& );
 105     void                SetFillColor( const Color& );
 106
 107     void                SetTransparent( bool bTransparent );
 108
 109     void                SetFontSize( const Size& );
 110     const Size&         GetFontSize() const;
 111     void                SetFontHeight( tools::Long nHeight );
 112     tools::Long                GetFontHeight() const;
 113     void                SetAverageFontWidth( tools::Long nWidth );
 114     tools::Long                GetAverageFontWidth() const;
 115
 116     // tdf#127471 for corrections on EMF/WMF we need the AvgFontWidth in Windows-specific notation
 117     tools::Long         GetOrCalculateAverageFontWidth() const;
 118
 119     // Prefer LanguageTag over LanguageType
 120     void                SetLanguageTag( const LanguageTag & );
 121     const LanguageTag&  GetLanguageTag() const;
 122     void                SetCJKContextLanguageTag( const LanguageTag& );
 123     const LanguageTag&  GetCJKContextLanguageTag() const;
 124     void                SetLanguage( LanguageType );
 125     LanguageType        GetLanguage() const;
 126     void                SetCJKContextLanguage( LanguageType );
 127     LanguageType        GetCJKContextLanguage() const;
 128
 129     void                SetOrientation( Degree10 nLineOrientation );
 130     Degree10            GetOrientation() const;
 131     void                SetVertical( bool bVertical );
 132     bool                IsVertical() const;
 133     void                SetKerning( FontKerning nKerning );
 134     FontKerning         GetKerning() const;
 135     bool                IsKerning() const;
 136
 137     void                SetOutline( bool bOutline );
 138     bool                IsOutline() const;
 139     void                SetShadow( bool bShadow );
 140     bool                IsShadow() const;
 141     void                SetRelief( FontRelief );
 142     FontRelief          GetRelief() const;
 143     void                SetUnderline( FontLineStyle );
 144     FontLineStyle       GetUnderline() const;
 145     void                SetOverline( FontLineStyle );
 146     FontLineStyle       GetOverline() const;
 147     void                SetStrikeout( FontStrikeout );
 148     FontStrikeout       GetStrikeout() const;
 149     void                SetEmphasisMark( FontEmphasisMark );
 150     FontEmphasisMark    GetEmphasisMark() const;
 151     void                SetWordLineMode( bool bWordLine );
 152     bool                IsWordLineMode() const;
 153
 154     void                Merge( const Font& rFont );
 155     void                GetFontAttributes( FontAttributes& rAttrs ) const;
 156
 157     Font&               operator=( const Font& );
 158     Font&               operator=( Font&& ) noexcept;
 159     bool                operator==( const Font& ) const;
 160     bool                operator!=( const Font& rFont ) const
 161                             { return !(Font::operator==( rFont )); }
 162     bool                IsSameInstance( const Font& ) const;
 163
 164     friend VCL_DLLPUBLIC SvStream&  ::ReadFont( SvStream& rIStm, vcl::Font& );
 165     friend VCL_DLLPUBLIC SvStream&  ::WriteFont( SvStream& rOStm, const vcl::Font& );
 166
 167     static Font identifyFont( const void* pBuffer, sal_uInt32 nLen );
 168
 169     typedef o3tl::cow_wrapper< ImplFont > ImplType;
 170
 171     inline bool IsUnderlineAbove() const;
 172
 173 private:
 174     ImplType mpImplFont;
 175 };
 176
 177 inline bool Font::IsUnderlineAbove() const
 178 {
 179     if (!IsVertical())
 180         return false;
 181     // the underline is right for Japanese only
 182     return (LANGUAGE_JAPANESE == GetLanguage()) ||
 183            (LANGUAGE_JAPANESE == GetCJKContextLanguage());
 184 }
 185
 186 }
 187
 188 #endif  // _VCL_FONT_HXX
 189
 190 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */