Add oblique as a slant.

src/ports/SkFontMgr_fontconfig.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkDataTable.h"
 #include "SkFixed.h"
 #include "SkFontDescriptor.h"
@@ skipping 327 matching lines @@
         { SkTFixed<FC_WIDTH_SEMICONDENSED>::value,  SkTFixed<SkFS::kSemiCondensed_Width>::value },
         { SkTFixed<FC_WIDTH_NORMAL>::value,         SkTFixed<SkFS::kNormal_Width>::value },
         { SkTFixed<FC_WIDTH_SEMIEXPANDED>::value,   SkTFixed<SkFS::kSemiExpanded_Width>::value },
         { SkTFixed<FC_WIDTH_EXPANDED>::value,       SkTFixed<SkFS::kExpanded_Width>::value },
         { SkTFixed<FC_WIDTH_EXTRAEXPANDED>::value,  SkTFixed<SkFS::kExtraExpanded_Width>::value },
         { SkTFixed<FC_WIDTH_ULTRAEXPANDED>::value,  SkTFixed<SkFS::kUltaExpanded_Width>::value },
     };
     int width = map_ranges(get_int(pattern, FC_WIDTH, FC_WIDTH_NORMAL),
                            widthRanges, SK_ARRAY_COUNT(widthRanges));
 
-    SkFS::Slant slant = get_int(pattern, FC_SLANT, FC_SLANT_ROMAN) > 0
-                             ? SkFS::kItalic_Slant
-                             : SkFS::kUpright_Slant;
+    SkFS::Slant slant = SkFS::kUpright_Slant;
+    switch (get_int(pattern, FC_SLANT, FC_SLANT_ROMAN)) {
+        case FC_SLANT_ROMAN:   slant = SkFS::kUpright_Slant; break;
+        case FC_SLANT_ITALIC : slant = SkFS::kItalic_Slant ; break;
+        case FC_SLANT_OBLIQUE: slant = SkFS::kOblique_Slant; break;
+        default: SkASSERT(false); break;
+    }
 
     return SkFontStyle(weight, width, slant);
 }
 
 static void fcpattern_from_skfontstyle(SkFontStyle style, FcPattern* pattern) {
     FCLocker::AssertHeld();
 
     typedef SkFontStyle SkFS;
 
     static const MapRanges weightRanges[] = {
@@ skipping 16 matching lines @@
         { SkTFixed<SkFS::kCondensed_Width>::value,      SkTFixed<FC_WIDTH_CONDENSED>::value },
         { SkTFixed<SkFS::kSemiCondensed_Width>::value,  SkTFixed<FC_WIDTH_SEMICONDENSED>::value },
         { SkTFixed<SkFS::kNormal_Width>::value,         SkTFixed<FC_WIDTH_NORMAL>::value },
         { SkTFixed<SkFS::kSemiExpanded_Width>::value,   SkTFixed<FC_WIDTH_SEMIEXPANDED>::value },
         { SkTFixed<SkFS::kExpanded_Width>::value,       SkTFixed<FC_WIDTH_EXPANDED>::value },
         { SkTFixed<SkFS::kExtraExpanded_Width>::value,  SkTFixed<FC_WIDTH_EXTRAEXPANDED>::value },
         { SkTFixed<SkFS::kUltaExpanded_Width>::value,   SkTFixed<FC_WIDTH_ULTRAEXPANDED>::value },
     };
     int width = map_ranges(style.width(), widthRanges, SK_ARRAY_COUNT(widthRanges));
 
+    int slant = FC_SLANT_ROMAN;
+    switch (style.slant()) {
+        case SkFS::kUpright_Slant: slant = FC_SLANT_ROMAN  ; break;
+        case SkFS::kItalic_Slant : slant = FC_SLANT_ITALIC ; break;
+        case SkFS::kOblique_Slant: slant = FC_SLANT_OBLIQUE; break;
+        default: SkASSERT(false); break;
+    }
+
     FcPatternAddInteger(pattern, FC_WEIGHT, weight);
-    FcPatternAddInteger(pattern, FC_WIDTH, width);
-    FcPatternAddInteger(pattern, FC_SLANT, style.isItalic() ? FC_SLANT_ITALIC : FC_SLANT_ROMAN);
+    FcPatternAddInteger(pattern, FC_WIDTH , width);
+    FcPatternAddInteger(pattern, FC_SLANT , slant);
 }
 
 class SkTypeface_stream : public SkTypeface_FreeType {
 public:
     /** @param data takes ownership of the font data.*/
     SkTypeface_stream(SkFontData* data, const SkFontStyle& style, bool fixedWidth)
         : INHERITED(style, SkTypefaceCache::NewFontID(), fixedWidth)
         , fData(data)
     { };
 
@@ skipping 521 matching lines @@
             return typeface.release();
         }
 
         return this->matchFamilyStyle(nullptr, style);
     }
 };
 
 SK_API SkFontMgr* SkFontMgr_New_FontConfig(FcConfig* fc) {
     return new SkFontMgr_fontconfig(fc);
 }