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LibGfx: Consult Unicode data to decode emoji sequences

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For example, consider the Pirate Flag emoji, which is the code point
sequence U+1F3F4 U+200D U+2620 U+FE0F. Our current emoji resolution does
not consider U+200D (Zero Width Joiner) as part of an emoji sequence.
Therefore fonts like Katica, which have a glyph for U+1F3F4, will draw
that glyph without checking if we have an emoji bitmap.

This removes some hard-coded code points and consults the UCD's code
point properties for emoji sequence components and variation selectors.
This recognizes the ZWJ code point as part of an emoji sequence.
This commit is contained in:
Timothy Flynn 2023-02-21 07:50:41 -05:00 • committed by Andreas Kling
parent 2eb2207f50
commit 2bc7c11e8d
2 changed files with 14 additions and 18 deletions
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Userland/Libraries/LibGfx/CMakeLists.txt
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@ -59,4 +59,4 @@ set(SOURCES
)
serenity_lib(LibGfx gfx)
target_link_libraries(LibGfx PRIVATE LibCompress LibCore LibCrypto LibTextCodec LibIPC)
target_link_libraries(LibGfx PRIVATE LibCompress LibCore LibCrypto LibTextCodec LibIPC LibUnicode)