Select emoji font based on variation selectors.

If U+FE0E is appended to the emoji code point, the glyph should have a
text presentation.
On the other hand, if U+FE0F is appended to the emoji code point, the
glyph should have an emoji presentation.

Bug: 11256006
Change-Id: I5187d44500b13a138e7ffbcf2c72e2da06374c8c

1 files changed, 3 insertions, 1 deletions

diff --git a/include/minikin/FontFamily.h b/include/minikin/FontFamily.h
index fc05e3b..776bcc4 100644
--- a/include/minikin/FontFamily.h
+++ b/include/minikin/FontFamily.h
@@ -48,6 +48,7 @@ public:
     operator bool() const { return mBits != 0; }
 
     bool isUnsupported() const { return mBits == kUnsupportedLanguage; }
+    bool hasEmojiFlag() const { return isUnsupported() ? false : (mBits & kEmojiFlag); }
 
     std::string getString() const;
 
@@ -61,9 +62,10 @@ private:
 
     static const uint32_t kUnsupportedLanguage = 0xFFFFFFFFu;
     static const uint32_t kBaseLangMask = 0xFFFFFFu;
-    static const uint32_t kScriptMask = (1u << 26) - (1u << 24);
     static const uint32_t kHansFlag = 1u << 24;
     static const uint32_t kHantFlag = 1u << 25;
+    static const uint32_t kEmojiFlag = 1u << 26;
+    static const uint32_t kScriptMask = kHansFlag | kHantFlag | kEmojiFlag;
     uint32_t mBits;
 };