LibTTF: Interpret font names from Windows platform as UTF-16BE

This turns the admittedly aesthetic "T a h o m a" into "Tahoma" :^)

3 files changed, 14 insertions, 1 deletions

diff --git a/Userland/Libraries/LibTTF/CMakeLists.txt b/Userland/Libraries/LibTTF/CMakeLists.txt
index 2fe3d94647..fa9daa9d5f 100644
--- a/Userland/Libraries/LibTTF/CMakeLists.txt
+++ b/Userland/Libraries/LibTTF/CMakeLists.txt
@@ -5,4 +5,4 @@ set(SOURCES
 )
 
 serenity_lib(LibTTF ttf)
-target_link_libraries(LibTTF LibM LibCore)
+target_link_libraries(LibTTF LibM LibCore LibTextCodec)
diff --git a/Userland/Libraries/LibTTF/Font.cpp b/Userland/Libraries/LibTTF/Font.cpp
index 2cdfec272b..be649dc171 100644
--- a/Userland/Libraries/LibTTF/Font.cpp
+++ b/Userland/Libraries/LibTTF/Font.cpp
@@ -34,6 +34,7 @@
 #include <LibTTF/Font.h>
 #include <LibTTF/Glyf.h>
 #include <LibTTF/Tables.h>
+#include <LibTextCodec/Decoder.h>
 #include <math.h>
 
 namespace TTF {
@@ -189,8 +190,15 @@ String Name::string_for_id(NameId id) const
         if (this_id != (u16)id)
             continue;
 
+        auto platform = be_u16(m_slice.offset_pointer(6 + i * 12 + 0));
         auto length = be_u16(m_slice.offset_pointer(6 + i * 12 + 8));
         auto offset = be_u16(m_slice.offset_pointer(6 + i * 12 + 10));
+
+        if (platform == (u16)Platform::Windows) {
+            static auto& decoder = *TextCodec::decoder_for("utf-16be");
+            return decoder.to_utf8(StringView { (const char*)m_slice.offset_pointer(string_offset + offset), length });
+        }
+
         return String((const char*)m_slice.offset_pointer(string_offset + offset), length);
     }
 
diff --git a/Userland/Libraries/LibTTF/Tables.h b/Userland/Libraries/LibTTF/Tables.h
index d5f5014bd4..a0aff9f230 100644
--- a/Userland/Libraries/LibTTF/Tables.h
+++ b/Userland/Libraries/LibTTF/Tables.h
@@ -148,6 +148,11 @@ private:
 
 class Name {
 public:
+    enum class Platform {
+        Unicode = 0,
+        Macintosh = 1,
+        Windows = 3,
+    };
     static Optional<Name> from_slice(const ReadonlyBytes&);
 
     String family_name() const { return string_for_id(NameId::FamilyName); }