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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
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 SkFontMgr_DEFINED | 8 #ifndef SkFontMgr_DEFINED |
9 #define SkFontMgr_DEFINED | 9 #define SkFontMgr_DEFINED |
10 | 10 |
11 #include "SkRefCnt.h" | 11 #include "SkRefCnt.h" |
12 #include "SkFontStyle.h" | 12 #include "SkFontStyle.h" |
13 | 13 |
14 class SkData; | 14 class SkData; |
15 class SkFontData; | |
16 class SkStreamAsset; | 15 class SkStreamAsset; |
17 class SkString; | 16 class SkString; |
18 class SkTypeface; | 17 class SkTypeface; |
19 | 18 |
20 class SK_API SkFontStyleSet : public SkRefCnt { | 19 class SK_API SkFontStyleSet : public SkRefCnt { |
21 public: | 20 public: |
22 SK_DECLARE_INST_COUNT(SkFontStyleSet) | 21 SK_DECLARE_INST_COUNT(SkFontStyleSet) |
23 | 22 |
24 virtual int count() = 0; | 23 virtual int count() = 0; |
25 virtual void getStyle(int index, SkFontStyle*, SkString* style) = 0; | 24 virtual void getStyle(int index, SkFontStyle*, SkString* style) = 0; |
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89 SkTypeface* createFromData(SkData*, int ttcIndex = 0) const; | 88 SkTypeface* createFromData(SkData*, int ttcIndex = 0) const; |
90 | 89 |
91 /** | 90 /** |
92 * Create a typeface for the specified stream and TTC index | 91 * Create a typeface for the specified stream and TTC index |
93 * (pass 0 for none) or NULL if the stream is not recognized. The caller | 92 * (pass 0 for none) or NULL if the stream is not recognized. The caller |
94 * must call unref() on the returned object if it is not null. | 93 * must call unref() on the returned object if it is not null. |
95 */ | 94 */ |
96 SkTypeface* createFromStream(SkStreamAsset*, int ttcIndex = 0) const; | 95 SkTypeface* createFromStream(SkStreamAsset*, int ttcIndex = 0) const; |
97 | 96 |
98 /** | 97 /** |
99 * Create a typeface from the specified font data. | |
100 * Takes ownership of the font data, so the caller should not reference it
again. | |
101 * Will return NULL if the typeface could not be created. | |
102 * The caller must call unref() on the returned object if it is not null. | |
103 */ | |
104 SkTypeface* createFromFontData(SkFontData*) const; | |
105 | |
106 /** | |
107 * Create a typeface for the specified fileName and TTC index | 98 * Create a typeface for the specified fileName and TTC index |
108 * (pass 0 for none) or NULL if the file is not found, or its contents are | 99 * (pass 0 for none) or NULL if the file is not found, or its contents are |
109 * not recognized. The caller must call unref() on the returned object | 100 * not recognized. The caller must call unref() on the returned object |
110 * if it is not null. | 101 * if it is not null. |
111 */ | 102 */ |
112 SkTypeface* createFromFile(const char path[], int ttcIndex = 0) const; | 103 SkTypeface* createFromFile(const char path[], int ttcIndex = 0) const; |
113 | 104 |
114 SkTypeface* legacyCreateTypeface(const char familyName[], | 105 SkTypeface* legacyCreateTypeface(const char familyName[], |
115 unsigned typefaceStyleBits) const; | 106 unsigned typefaceStyleBits) const; |
116 | 107 |
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131 virtual SkTypeface* onMatchFamilyStyle(const char familyName[], | 122 virtual SkTypeface* onMatchFamilyStyle(const char familyName[], |
132 const SkFontStyle&) const = 0; | 123 const SkFontStyle&) const = 0; |
133 virtual SkTypeface* onMatchFamilyStyleCharacter(const char familyName[], con
st SkFontStyle&, | 124 virtual SkTypeface* onMatchFamilyStyleCharacter(const char familyName[], con
st SkFontStyle&, |
134 const char* bcp47[], int bcp
47Count, | 125 const char* bcp47[], int bcp
47Count, |
135 SkUnichar character) const =
0; | 126 SkUnichar character) const =
0; |
136 virtual SkTypeface* onMatchFaceStyle(const SkTypeface*, | 127 virtual SkTypeface* onMatchFaceStyle(const SkTypeface*, |
137 const SkFontStyle&) const = 0; | 128 const SkFontStyle&) const = 0; |
138 | 129 |
139 virtual SkTypeface* onCreateFromData(SkData*, int ttcIndex) const = 0; | 130 virtual SkTypeface* onCreateFromData(SkData*, int ttcIndex) const = 0; |
140 virtual SkTypeface* onCreateFromStream(SkStreamAsset*, int ttcIndex) const =
0; | 131 virtual SkTypeface* onCreateFromStream(SkStreamAsset*, int ttcIndex) const =
0; |
141 // TODO: make pure virtual. | |
142 virtual SkTypeface* onCreateFromFontData(SkFontData*) const; | |
143 virtual SkTypeface* onCreateFromFile(const char path[], int ttcIndex) const
= 0; | 132 virtual SkTypeface* onCreateFromFile(const char path[], int ttcIndex) const
= 0; |
144 | 133 |
145 virtual SkTypeface* onLegacyCreateTypeface(const char familyName[], | 134 virtual SkTypeface* onLegacyCreateTypeface(const char familyName[], |
146 unsigned styleBits) const = 0; | 135 unsigned styleBits) const = 0; |
147 private: | 136 private: |
148 static SkFontMgr* Factory(); // implemented by porting layer | 137 static SkFontMgr* Factory(); // implemented by porting layer |
149 friend SkFontMgr* sk_fontmgr_create_default(); | 138 friend SkFontMgr* sk_fontmgr_create_default(); |
150 | 139 |
151 typedef SkRefCnt INHERITED; | 140 typedef SkRefCnt INHERITED; |
152 }; | 141 }; |
153 | 142 |
154 #endif | 143 #endif |
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