Use proper file names in core/fpdfapi/font

This CL splits up font_int.h into files by classes. It also renames the
unittests to match the class being tested. Finally, it renames the ttgsubtable
files to match the class name.

Change-Id: I6187caa9e82d12b9a66e955113fe327d52042ae0
Reviewed-on: https://pdfium-review.googlesource.com/6090
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Nicolás Peña <npm@chromium.org>

1 files changed, 24 insertions, 1 deletions

diff --git a/core/fpdfapi/font/cpdf_font.cpp b/core/fpdfapi/font/cpdf_font.cpp
index 1a7fb60b0b..1faa4ec4be 100644
--- a/core/fpdfapi/font/cpdf_font.cpp
+++ b/core/fpdfapi/font/cpdf_font.cpp
@@ -15,7 +15,6 @@
 #include "core/fpdfapi/font/cpdf_truetypefont.h"
 #include "core/fpdfapi/font/cpdf_type1font.h"
 #include "core/fpdfapi/font/cpdf_type3font.h"
-#include "core/fpdfapi/font/font_int.h"
 #include "core/fpdfapi/page/cpdf_docpagedata.h"
 #include "core/fpdfapi/page/cpdf_pagemodule.h"
 #include "core/fpdfapi/parser/cpdf_array.h"
@@ -477,3 +476,27 @@ CFX_Font* CPDF_Font::GetFontFallback(int position) {
     return nullptr;
   return m_FontFallbacks[position].get();
 }
+
+// static
+int CPDF_Font::TT2PDF(int m, FXFT_Face face) {
+  int upm = FXFT_Get_Face_UnitsPerEM(face);
+  if (upm == 0)
+    return m;
+  return pdfium::base::checked_cast<int>(
+      (static_cast<double>(m) * 1000 + upm / 2) / upm);
+}
+
+// static
+bool CPDF_Font::FT_UseTTCharmap(FXFT_Face face,
+                                int platform_id,
+                                int encoding_id) {
+  auto** pCharMap = FXFT_Get_Face_Charmaps(face);
+  for (int i = 0; i < FXFT_Get_Face_CharmapCount(face); i++) {
+    if (FXFT_Get_Charmap_PlatformID(pCharMap[i]) == platform_id &&
+        FXFT_Get_Charmap_EncodingID(pCharMap[i]) == encoding_id) {
+      FXFT_Set_Charmap(face, pCharMap[i]);
+      return true;
+    }
+  }
+  return false;
+}