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comparison: gfx/skia/trunk/include/core/SkPaintOptionsAndroid.h
gfx/skia/trunk/include/core/SkPaintOptionsAndroid.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:8a9ecef33fc4 |
|---|---|
| 1 | |
| 2 /* | |
| 3 * Copyright 2012 The Android Open Source Project | |
| 4 * | |
| 5 * Use of this source code is governed by a BSD-style license that can be | |
| 6 * found in the LICENSE file. | |
| 7 */ | |
| 8 | |
| 9 | |
| 10 #ifndef SkPaintOptionsAndroid_DEFINED | |
| 11 #define SkPaintOptionsAndroid_DEFINED | |
| 12 | |
| 13 #include "SkTypes.h" | |
| 14 #include "SkString.h" | |
| 15 | |
| 16 class SkReadBuffer; | |
| 17 class SkWriteBuffer; | |
| 18 | |
| 19 /** \class SkLanguage | |
| 20 | |
| 21 The SkLanguage class represents a human written language, and is used by | |
| 22 text draw operations to determine which glyph to draw when drawing | |
| 23 characters with variants (ie Han-derived characters). | |
| 24 */ | |
| 25 class SkLanguage { | |
| 26 public: | |
| 27 SkLanguage() { } | |
| 28 SkLanguage(const SkString& tag) : fTag(tag) { } | |
| 29 SkLanguage(const char* tag) : fTag(tag) { } | |
| 30 SkLanguage(const char* tag, size_t len) : fTag(tag, len) { } | |
| 31 SkLanguage(const SkLanguage& b) : fTag(b.fTag) { } | |
| 32 | |
| 33 /** Gets a BCP 47 language identifier for this SkLanguage. | |
| 34 @return a BCP 47 language identifier representing this language | |
| 35 */ | |
| 36 const SkString& getTag() const { return fTag; } | |
| 37 | |
| 38 /** Performs BCP 47 fallback to return an SkLanguage one step more general. | |
| 39 @return an SkLanguage one step more general | |
| 40 */ | |
| 41 SkLanguage getParent() const; | |
| 42 | |
| 43 bool operator==(const SkLanguage& b) const { | |
| 44 return fTag == b.fTag; | |
| 45 } | |
| 46 bool operator!=(const SkLanguage& b) const { | |
| 47 return fTag != b.fTag; | |
| 48 } | |
| 49 SkLanguage& operator=(const SkLanguage& b) { | |
| 50 fTag = b.fTag; | |
| 51 return *this; | |
| 52 } | |
| 53 | |
| 54 private: | |
| 55 //! BCP 47 language identifier | |
| 56 SkString fTag; | |
| 57 }; | |
| 58 | |
| 59 class SkPaintOptionsAndroid { | |
| 60 public: | |
| 61 SkPaintOptionsAndroid() { | |
| 62 fFontVariant = kDefault_Variant; | |
| 63 fUseFontFallbacks = false; | |
| 64 } | |
| 65 | |
| 66 SkPaintOptionsAndroid& operator=(const SkPaintOptionsAndroid& b) { | |
| 67 fLanguage = b.fLanguage; | |
| 68 fFontVariant = b.fFontVariant; | |
| 69 fUseFontFallbacks = b.fUseFontFallbacks; | |
| 70 return *this; | |
| 71 } | |
| 72 | |
| 73 bool operator==(const SkPaintOptionsAndroid& b) const { | |
| 74 return !(*this != b); | |
| 75 } | |
| 76 | |
| 77 bool operator!=(const SkPaintOptionsAndroid& b) const { | |
| 78 return fLanguage != b.fLanguage || | |
| 79 fFontVariant != b.fFontVariant || | |
| 80 fUseFontFallbacks != b.fUseFontFallbacks; | |
| 81 } | |
| 82 | |
| 83 void flatten(SkWriteBuffer&) const; | |
| 84 void unflatten(SkReadBuffer&); | |
| 85 | |
| 86 /** Return the paint's language value used for drawing text. | |
| 87 @return the paint's language value used for drawing text. | |
| 88 */ | |
| 89 const SkLanguage& getLanguage() const { return fLanguage; } | |
| 90 | |
| 91 /** Set the paint's language value used for drawing text. | |
| 92 @param language set the paint's language value for drawing text. | |
| 93 */ | |
| 94 void setLanguage(const SkLanguage& language) { fLanguage = language; } | |
| 95 void setLanguage(const char* languageTag) { fLanguage = SkLanguage(languageTag); } | |
| 96 | |
| 97 | |
| 98 enum FontVariant { | |
| 99 kDefault_Variant = 0x01, | |
| 100 kCompact_Variant = 0x02, | |
| 101 kElegant_Variant = 0x04, | |
| 102 kLast_Variant = kElegant_Variant, | |
| 103 }; | |
| 104 | |
| 105 /** Return the font variant | |
| 106 @return the font variant used by this paint object | |
| 107 */ | |
| 108 FontVariant getFontVariant() const { return fFontVariant; } | |
| 109 | |
| 110 /** Set the font variant | |
| 111 @param fontVariant set the paint's font variant for choosing fonts | |
| 112 */ | |
| 113 void setFontVariant(FontVariant fontVariant) { | |
| 114 SkASSERT((unsigned)fontVariant <= kLast_Variant); | |
| 115 fFontVariant = fontVariant; | |
| 116 } | |
| 117 | |
| 118 bool isUsingFontFallbacks() const { return fUseFontFallbacks; } | |
| 119 | |
| 120 void setUseFontFallbacks(bool useFontFallbacks) { | |
| 121 fUseFontFallbacks = useFontFallbacks; | |
| 122 } | |
| 123 | |
| 124 private: | |
| 125 SkLanguage fLanguage; | |
| 126 FontVariant fFontVariant; | |
| 127 bool fUseFontFallbacks; | |
| 128 }; | |
| 129 | |
| 130 #endif // #ifndef SkPaintOptionsAndroid_DEFINED |
