Source/platform/fonts/FontRenderStyle.h

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#ifndef FontRenderStyle_h
#define FontRenderStyle_h

namespace blink {

// FontRenderStyle describes the user's preferences for rendering a font at a
// given size.
struct FontRenderStyle {
    enum {
        NoPreference = 2,
    };

    FontRenderStyle()
        : useBitmaps(0)
        , useAutoHint(0)
        , useHinting(0)
        , hintStyle(0)
        , useAntiAlias(0)
        , useSubpixelRendering(0)
        , useSubpixelPositioning(0) { }

    bool operator==(const FontRenderStyle& a) const
    {
        return useBitmaps == a.useBitmaps
            && useAutoHint == a.useAutoHint
            && useHinting == a.useHinting
            && hintStyle == a.hintStyle
            && useAntiAlias == a.useAntiAlias
            && useSubpixelRendering == a.useSubpixelRendering
            && useSubpixelPositioning == a.useSubpixelPositioning;
    }

    // Each of the use* members below can take one of three values:
    //   0: off
    //   1: on
    //   NoPreference: no preference expressed
    char useBitmaps; // use embedded bitmap strike if possible
    char useAutoHint; // use 'auto' hinting (FreeType specific)
    char useHinting; // hint glyphs to the pixel grid
    char hintStyle; // level of hinting, 0..3
    char useAntiAlias; // antialias glyph shapes
    char useSubpixelRendering; // use subpixel rendering (partially-filled pixels)
    char useSubpixelPositioning; // use subpixel positioning (fractional X positions for glyphs)
};

} // namespace blink

#endif // FontRenderStyle_h