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

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This turns the admittedly aesthetic "T a h o m a" into "Tahoma" :^)
This commit is contained in:
Andreas Kling 2021-02-16 17:31:42 +01:00
parent 0538dc4e28
commit 085696ea39
3 changed files with 14 additions and 1 deletions
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2
Userland/Libraries/LibTTF/CMakeLists.txt
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@ -5,4 +5,4 @@ set(SOURCES
)
serenity_lib(LibTTF ttf)
target_link_libraries(LibTTF LibM LibCore)
target_link_libraries(LibTTF LibM LibCore LibTextCodec)

8
Userland/Libraries/LibTTF/Font.cpp
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@ -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);
}

5
Userland/Libraries/LibTTF/Tables.h
View file

@ -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); }