SkFontStyle.h revision b1dd067128f9dbae51982c57fbc9ad0d6325bf40 
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
13class SK_API SkFontStyle {
14public:
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
60private:
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