From 358870998684a1b30e7f79f60fa55e30754bcb32 Mon Sep 17 00:00:00 2001
From: Rodrigo Tobar <rtobarc@gmail.com>
Date: Sun, 15 Jan 2023 11:29:12 +0800
Subject: [PATCH] LibPDF: Load Type1C fonts when found

Now that our CFF parser is working we can load Type1C fonts in PDF,
which are backed by a CFF stream.
---
 Userland/Libraries/LibPDF/CommonNames.h       |  1 +
 Userland/Libraries/LibPDF/Fonts/Type1Font.cpp | 11 +++++++++++
 2 files changed, 12 insertions(+)

diff --git a/Userland/Libraries/LibPDF/CommonNames.h b/Userland/Libraries/LibPDF/CommonNames.h
index 907f3ff524..33a487733d 100644
--- a/Userland/Libraries/LibPDF/CommonNames.h
+++ b/Userland/Libraries/LibPDF/CommonNames.h
@@ -132,6 +132,7 @@
     A(Title)                      \
     A(ToUnicode)                  \
     A(Type)                       \
+    A(Type1C)                     \
     A(U)                          \
     A(UCR)                        \
     A(UseBlackPTComp)             \
diff --git a/Userland/Libraries/LibPDF/Fonts/Type1Font.cpp b/Userland/Libraries/LibPDF/Fonts/Type1Font.cpp
index 76ff822a52..fd93c815de 100644
--- a/Userland/Libraries/LibPDF/Fonts/Type1Font.cpp
+++ b/Userland/Libraries/LibPDF/Fonts/Type1Font.cpp
@@ -7,6 +7,7 @@
 
 #include <LibGfx/Painter.h>
 #include <LibPDF/CommonNames.h>
+#include <LibPDF/Fonts/CFF.h>
 #include <LibPDF/Fonts/PS1FontProgram.h>
 #include <LibPDF/Fonts/Type1Font.h>
 
@@ -19,6 +20,16 @@ PDFErrorOr<Type1Font::Data> Type1Font::parse_data(Document* document, NonnullRef
 
     if (!data.is_standard_font) {
         auto descriptor = TRY(dict->get_dict(document, CommonNames::FontDescriptor));
+        if (descriptor->contains(CommonNames::FontFile3)) {
+            auto font_file_stream = TRY(descriptor->get_stream(document, CommonNames::FontFile3));
+            auto font_file_dict = font_file_stream->dict();
+            if (font_file_dict->contains(CommonNames::Subtype) && font_file_dict->get_name(CommonNames::Subtype)->name() == CommonNames::Type1C) {
+                data.font_program = TRY(CFF::create(font_file_stream->bytes(), data.encoding));
+                if (!data.encoding)
+                    data.encoding = data.font_program->encoding();
+                return data;
+            }
+        }
         if (!descriptor->contains(CommonNames::FontFile))
             return data;