3 * Copyright 2012 The Android Open Source Project
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
10 #ifndef SkPaintOptionsAndroid_DEFINED
11 #define SkPaintOptionsAndroid_DEFINED
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).
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) { }
33 /** Gets a BCP 47 language identifier for this SkLanguage.
34 @return a BCP 47 language identifier representing this language
36 const SkString& getTag() const { return fTag; }
38 /** Performs BCP 47 fallback to return an SkLanguage one step more general.
39 @return an SkLanguage one step more general
41 SkLanguage getParent() const;
43 bool operator==(const SkLanguage& b) const {
44 return fTag == b.fTag;
46 bool operator!=(const SkLanguage& b) const {
47 return fTag != b.fTag;
49 SkLanguage& operator=(const SkLanguage& b) {
55 //! BCP 47 language identifier
59 class SkPaintOptionsAndroid {
61 SkPaintOptionsAndroid() {
62 fFontVariant = kDefault_Variant;
63 fUseFontFallbacks = false;
66 SkPaintOptionsAndroid& operator=(const SkPaintOptionsAndroid& b) {
67 fLanguage = b.fLanguage;
68 fFontVariant = b.fFontVariant;
69 fUseFontFallbacks = b.fUseFontFallbacks;
73 bool operator==(const SkPaintOptionsAndroid& b) const {
77 bool operator!=(const SkPaintOptionsAndroid& b) const {
78 return fLanguage != b.fLanguage ||
79 fFontVariant != b.fFontVariant ||
80 fUseFontFallbacks != b.fUseFontFallbacks;
83 void flatten(SkWriteBuffer&) const;
84 void unflatten(SkReadBuffer&);
86 /** Return the paint's language value used for drawing text.
87 @return the paint's language value used for drawing text.
89 const SkLanguage& getLanguage() const { return fLanguage; }
91 /** Set the paint's language value used for drawing text.
92 @param language set the paint's language value for drawing text.
94 void setLanguage(const SkLanguage& language) { fLanguage = language; }
95 void setLanguage(const char* languageTag) { fLanguage = SkLanguage(languageTag); }
99 kDefault_Variant = 0x01,
100 kCompact_Variant = 0x02,
101 kElegant_Variant = 0x04,
102 kLast_Variant = kElegant_Variant,
105 /** Return the font variant
106 @return the font variant used by this paint object
108 FontVariant getFontVariant() const { return fFontVariant; }
110 /** Set the font variant
111 @param fontVariant set the paint's font variant for choosing fonts
113 void setFontVariant(FontVariant fontVariant) {
114 SkASSERT((unsigned)fontVariant <= kLast_Variant);
115 fFontVariant = fontVariant;
118 bool isUsingFontFallbacks() const { return fUseFontFallbacks; }
120 void setUseFontFallbacks(bool useFontFallbacks) {
121 fUseFontFallbacks = useFontFallbacks;
125 SkLanguage fLanguage;
126 FontVariant fFontVariant;
127 bool fUseFontFallbacks;
130 #endif // #ifndef SkPaintOptionsAndroid_DEFINED