Replace SkTypeface::Style with SkFontStyle.

src/ports/SkFontHost_FreeType.cpp

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkAdvancedTypefaceMetrics.h"
 #include "SkBitmap.h"
@@ skipping 1651 matching lines @@
             return 0;
         }
     }
 
     return size;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 ///////////////////////////////////////////////////////////////////////////////
 
+#include "SkTSearch.h"
 /*static*/ bool SkTypeface_FreeType::ScanFont(
-    SkStream* stream, int ttcIndex, SkString* name, SkTypeface::Style* style, bool* isFixedPitch)
+    SkStream* stream, int ttcIndex, SkString* name, SkFontStyle* style, bool* isFixedPitch)
 {
     FT_Library  library;
     if (FT_Init_FreeType(&library)) {
         return false;
     }
 
     FT_Open_Args    args;
     memset(&args, 0, sizeof(args));
 
     const void* memoryBase = stream->getMemoryBase();
@@ skipping 13 matching lines @@
         args.flags = FT_OPEN_STREAM;
         args.stream = &streamRec;
     }
 
     FT_Face face;
     if (FT_Open_Face(library, &args, ttcIndex, &face)) {
         FT_Done_FreeType(library);
         return false;
     }
 
-    int tempStyle = SkTypeface::kNormal;
+    int weight = SkFontStyle::kNormal_Weight;
+    int width = SkFontStyle::kNormal_Width;
+    SkFontStyle::Slant slant = SkFontStyle::kUpright_Slant;
     if (face->style_flags & FT_STYLE_FLAG_BOLD) {
-        tempStyle |= SkTypeface::kBold;
+        weight = SkFontStyle::kBold_Weight;
     }
     if (face->style_flags & FT_STYLE_FLAG_ITALIC) {
-        tempStyle |= SkTypeface::kItalic;
+        slant = SkFontStyle::kItalic_Slant;
+    }
+
+    PS_FontInfoRec psFontInfo;
+    TT_OS2* os2 = static_cast<TT_OS2*>(FT_Get_Sfnt_Table(face, ft_sfnt_os2));
+    if (os2 && os2->version != 0xffff) {
+        weight = os2->usWeightClass;
+        width = os2->usWidthClass;
+    } else if (0 == FT_Get_PS_Font_Info(face, &psFontInfo) && psFontInfo.weight) {
+        static const struct {
+            char const * const name;
+            int const weight;
+        } commonWeights [] = {
+            // There are probably more common names, but these are known to exist.
+            { "black", SkFontStyle::kBlack_Weight },
+            { "bold", SkFontStyle::kBold_Weight },
+            { "book", (SkFontStyle::kNormal_Weight + SkFontStyle::kLight_Weight)/2 },
+            { "demi", SkFontStyle::kSemiBold_Weight },
+            { "demibold", SkFontStyle::kSemiBold_Weight },
+            { "extrabold", SkFontStyle::kExtraBold_Weight },
+            { "extralight", SkFontStyle::kExtraLight_Weight },
+            { "heavy", SkFontStyle::kBlack_Weight },
+            { "light", SkFontStyle::kLight_Weight },
+            { "medium", SkFontStyle::kMedium_Weight },
+            { "normal", SkFontStyle::kNormal_Weight },
+            { "regular", SkFontStyle::kNormal_Weight },
+            { "semibold", SkFontStyle::kSemiBold_Weight },
+            { "thin", SkFontStyle::kThin_Weight },
+            { "ultra", SkFontStyle::kExtraBold_Weight },
+            { "ultrablack", 1000 },
+            { "ultrabold", SkFontStyle::kExtraBold_Weight },
+            { "ultraheavy", 1000 },
+            { "ultralight", SkFontStyle::kExtraLight_Weight },
+        };
+        int const index = SkStrLCSearch(&commonWeights[0].name, SK_ARRAY_COUNT(commonWeights),
+                                        psFontInfo.weight, sizeof(commonWeights));
+        if (index >= 0) {
+            weight = commonWeights[index].weight;
+        } else {
+            SkDEBUGF(("Do not know weight for: %s\n", psFontInfo.weight));
+        }
     }
 
     if (name) {
         name->set(face->family_name);
     }
     if (style) {
-        *style = (SkTypeface::Style) tempStyle;
+        *style = SkFontStyle(weight, width, slant);
     }
     if (isFixedPitch) {
         *isFixedPitch = FT_IS_FIXED_WIDTH(face);
     }
 
     FT_Done_Face(face);
     FT_Done_FreeType(library);
     return true;
 }