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| 1 /* | 1 /* |
| 2 * Copyright 2011 The Android Open Source Project | 2 * Copyright 2011 The Android Open Source Project |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
| 6 */ | 6 */ |
| 7 | 7 |
| 8 #ifndef SKFONTCONFIGPARSER_ANDROID_H_ | 8 #ifndef SKFONTCONFIGPARSER_ANDROID_H_ |
| 9 #define SKFONTCONFIGPARSER_ANDROID_H_ | 9 #define SKFONTCONFIGPARSER_ANDROID_H_ |
| 10 | 10 |
| 11 #include "SkTypes.h" | |
| 12 | |
| 13 #include "SkPaintOptionsAndroid.h" | |
| 14 #include "SkString.h" | 11 #include "SkString.h" |
| 15 #include "SkTDArray.h" | 12 #include "SkTDArray.h" |
| 16 | 13 |
| 14 /** \class SkLanguage |
| 15 |
| 16 The SkLanguage class represents a human written language, and is used by |
| 17 text draw operations to determine which glyph to draw when drawing |
| 18 characters with variants (ie Han-derived characters). |
| 19 */ |
| 20 class SkLanguage { |
| 21 public: |
| 22 SkLanguage() { } |
| 23 SkLanguage(const SkString& tag) : fTag(tag) { } |
| 24 SkLanguage(const char* tag) : fTag(tag) { } |
| 25 SkLanguage(const char* tag, size_t len) : fTag(tag, len) { } |
| 26 SkLanguage(const SkLanguage& b) : fTag(b.fTag) { } |
| 27 |
| 28 /** Gets a BCP 47 language identifier for this SkLanguage. |
| 29 @return a BCP 47 language identifier representing this language |
| 30 */ |
| 31 const SkString& getTag() const { return fTag; } |
| 32 |
| 33 /** Performs BCP 47 fallback to return an SkLanguage one step more general. |
| 34 @return an SkLanguage one step more general |
| 35 */ |
| 36 SkLanguage getParent() const; |
| 37 |
| 38 bool operator==(const SkLanguage& b) const { |
| 39 return fTag == b.fTag; |
| 40 } |
| 41 bool operator!=(const SkLanguage& b) const { |
| 42 return fTag != b.fTag; |
| 43 } |
| 44 SkLanguage& operator=(const SkLanguage& b) { |
| 45 fTag = b.fTag; |
| 46 return *this; |
| 47 } |
| 48 |
| 49 private: |
| 50 //! BCP 47 language identifier |
| 51 SkString fTag; |
| 52 }; |
| 53 |
| 54 enum FontVariants { |
| 55 kDefault_FontVariant = 0x01, |
| 56 kCompact_FontVariant = 0x02, |
| 57 kElegant_FontVariant = 0x04, |
| 58 kLast_FontVariant = kElegant_FontVariant, |
| 59 }; |
| 60 typedef uint32_t FontVariant; |
| 61 |
| 17 struct FontFileInfo { | 62 struct FontFileInfo { |
| 18 FontFileInfo() : fIndex(0), fWeight(0) { } | 63 FontFileInfo() : fIndex(0), fWeight(0) { } |
| 19 | 64 |
| 20 SkString fFileName; | 65 SkString fFileName; |
| 21 int fIndex; | 66 int fIndex; |
| 22 SkPaintOptionsAndroid fPaintOptions; | |
| 23 int fWeight; | 67 int fWeight; |
| 24 }; | 68 }; |
| 25 | 69 |
| 26 /** | 70 /** |
| 27 * The FontFamily data structure is created during parsing and handed back to | 71 * The FontFamily data structure is created during parsing and handed back to |
| 28 * Skia to fold into its representation of font families. fNames is the list of | 72 * Skia to fold into its representation of font families. fNames is the list of |
| 29 * font names that alias to a font family. fontFileArray is the list of informat
ion | 73 * font names that alias to a font family. fontFileArray is the list of informat
ion |
| 30 * about each file. Order is the priority order for the font. This is | 74 * about each file. Order is the priority order for the font. This is |
| 31 * used internally to determine the order in which to place fallback fonts as | 75 * used internally to determine the order in which to place fallback fonts as |
| 32 * they are read from the configuration files. | 76 * they are read from the configuration files. |
| 33 */ | 77 */ |
| 34 struct FontFamily { | 78 struct FontFamily { |
| 35 FontFamily() | 79 FontFamily() |
| 36 : fVariant(SkPaintOptionsAndroid::kDefault_Variant) | 80 : fVariant(kDefault_FontVariant) |
| 37 , order(-1) | 81 , order(-1) |
| 38 , fIsFallbackFont(false) { } | 82 , fIsFallbackFont(false) { } |
| 39 | 83 |
| 40 SkTArray<SkString> fNames; | 84 SkTArray<SkString> fNames; |
| 41 SkTArray<FontFileInfo> fFontFiles; | 85 SkTArray<FontFileInfo> fFontFiles; |
| 42 SkLanguage fLanguage; | 86 SkLanguage fLanguage; |
| 43 SkPaintOptionsAndroid::FontVariant fVariant; | 87 FontVariant fVariant; |
| 44 int order; // only used internally by SkFontC
onfigParser | 88 int order; // only used internally by SkFontC
onfigParser |
| 45 bool fIsFallbackFont; | 89 bool fIsFallbackFont; |
| 46 }; | 90 }; |
| 47 | 91 |
| 48 namespace SkFontConfigParser { | 92 namespace SkFontConfigParser { |
| 49 | 93 |
| 94 |
| 95 |
| 50 /** | 96 /** |
| 51 * Parses all system font configuration files and returns the results in an | 97 * Parses all system font configuration files and returns the results in an |
| 52 * array of FontFamily structures. | 98 * array of FontFamily structures. |
| 53 */ | 99 */ |
| 54 void GetFontFamilies(SkTDArray<FontFamily*> &fontFamilies); | 100 void GetFontFamilies(SkTDArray<FontFamily*> &fontFamilies); |
| 55 | 101 |
| 56 /** | 102 /** |
| 57 * Parses all test font configuration files and returns the results in an | 103 * Parses all test font configuration files and returns the results in an |
| 58 * array of FontFamily structures. | 104 * array of FontFamily structures. |
| 59 */ | 105 */ |
| 60 void GetTestFontFamilies(SkTDArray<FontFamily*> &fontFamilies, | 106 void GetTestFontFamilies(SkTDArray<FontFamily*> &fontFamilies, |
| 61 const char* testMainConfigFile, | 107 const char* testMainConfigFile, |
| 62 const char* testFallbackConfigFile); | 108 const char* testFallbackConfigFile); |
| 63 | 109 |
| 64 } // SkFontConfigParser namespace | 110 } // SkFontConfigParser namespace |
| 65 | 111 |
| 66 #endif /* SKFONTCONFIGPARSER_ANDROID_H_ */ | 112 #endif /* SKFONTCONFIGPARSER_ANDROID_H_ */ |
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