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LibGfx: Extend Unicode support for BitmapFonts

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Removes the concept of Type enumeration in favor of a bitmask which
represents 544 potential byte ranges of 256 characters per bit,
supporting the current unicode code point set (0x0000-0x10FFFF).
Range positions are indexed in a vector for code point lookup and
conversion.

Co-authored-by: Lynn <lynn@foldr.moe>
This commit is contained in:
thankyouverycool 2021-09-09 07:20:19 -04:00 • committed by Andreas Kling
parent 4540c1ffab
commit bb592aef8a
5 changed files with 169 additions and 145 deletions
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2
Userland/Libraries/LibGfx/Font.h
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@ -92,7 +92,7 @@ public:
virtual Glyph glyph(u32 code_point) const = 0;
virtual bool contains_glyph(u32 code_point) const = 0;
virtual u8 glyph_width(size_t ch) const = 0;
virtual u8 glyph_width(u32 code_point) const = 0;
virtual int glyph_or_emoji_width(u32 code_point) const = 0;
virtual u8 glyph_height() const = 0;
virtual int x_height() const = 0;