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      1 /*
      2  * Copyright 2013 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 
      8 #ifndef SkFontStyle_DEFINED
      9 #define SkFontStyle_DEFINED
     10 
     11 #include "SkTypes.h"
     12 
     13 class SK_API SkFontStyle {
     14 public:
     15     enum Weight {
     16         kInvisible_Weight   =    0,
     17         kThin_Weight        =  100,
     18         kExtraLight_Weight  =  200,
     19         kLight_Weight       =  300,
     20         kNormal_Weight      =  400,
     21         kMedium_Weight      =  500,
     22         kSemiBold_Weight    =  600,
     23         kBold_Weight        =  700,
     24         kExtraBold_Weight   =  800,
     25         kBlack_Weight       =  900,
     26         kExtraBlack_Weight  = 1000,
     27     };
     28 
     29     enum Width {
     30         kUltraCondensed_Width   = 1,
     31         kExtraCondensed_Width   = 2,
     32         kCondensed_Width        = 3,
     33         kSemiCondensed_Width    = 4,
     34         kNormal_Width           = 5,
     35         kSemiExpanded_Width     = 6,
     36         kExpanded_Width         = 7,
     37         kExtraExpanded_Width    = 8,
     38         kUltraExpanded_Width    = 9,
     39     };
     40 
     41     enum Slant {
     42         kUpright_Slant,
     43         kItalic_Slant,
     44         kOblique_Slant,
     45     };
     46 
     47     SkFontStyle();
     48     SkFontStyle(int weight, int width, Slant);
     49 
     50     static SkFontStyle FromOldStyle(unsigned oldStyle);
     51 
     52     bool operator==(const SkFontStyle& rhs) const {
     53         return fUnion.fU32 == rhs.fUnion.fU32;
     54     }
     55 
     56     int weight() const { return fUnion.fR.fWeight; }
     57     int width() const { return fUnion.fR.fWidth; }
     58     Slant slant() const { return (Slant)fUnion.fR.fSlant; }
     59 
     60 private:
     61     union {
     62         struct {
     63             uint16_t fWeight;   // 100 .. 900
     64             uint8_t  fWidth;    // 1 .. 9
     65             uint8_t  fSlant;    // 0 .. 2
     66         } fR;
     67         uint32_t    fU32;
     68     } fUnion;
     69 };
     70 
     71 #endif
     72