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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 SkFontConfigInterface_DEFINED | 8 #ifndef SkFontConfigInterface_DEFINED |
9 #define SkFontConfigInterface_DEFINED | 9 #define SkFontConfigInterface_DEFINED |
10 | 10 |
11 #include "SkDataTable.h" | 11 #include "SkDataTable.h" |
12 #include "SkFontStyle.h" | 12 #include "SkFontStyle.h" |
13 #include "SkRefCnt.h" | 13 #include "SkRefCnt.h" |
14 #include "SkTArray.h" | 14 #include "SkTArray.h" |
15 #include "SkTypeface.h" | 15 #include "SkTypeface.h" |
16 | 16 |
17 struct SkBaseMutex; | |
18 | |
19 /** | 17 /** |
20 * \class SkFontConfigInterface | 18 * \class SkFontConfigInterface |
21 * | 19 * |
22 * Provides SkFontHost clients with access to fontconfig services. They will | 20 * Provides SkFontHost clients with access to fontconfig services. They will |
23 * access the global instance found in RefGlobal(). | 21 * access the global instance found in RefGlobal(). |
24 */ | 22 */ |
25 class SK_API SkFontConfigInterface : public SkRefCnt { | 23 class SK_API SkFontConfigInterface : public SkRefCnt { |
26 public: | 24 public: |
27 SK_DECLARE_INST_COUNT(SkFontConfigInterface) | 25 SK_DECLARE_INST_COUNT(SkFontConfigInterface) |
28 | 26 |
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90 /** | 88 /** |
91 * Given a FontRef, open a stream to access its data, or return null | 89 * Given a FontRef, open a stream to access its data, or return null |
92 * if the FontRef's data is not available. The caller is responsible for | 90 * if the FontRef's data is not available. The caller is responsible for |
93 * calling stream->unref() when it is done accessing the data. | 91 * calling stream->unref() when it is done accessing the data. |
94 */ | 92 */ |
95 virtual SkStream* openStream(const FontIdentity&) = 0; | 93 virtual SkStream* openStream(const FontIdentity&) = 0; |
96 | 94 |
97 /** | 95 /** |
98 * Return a singleton instance of a direct subclass that calls into | 96 * Return a singleton instance of a direct subclass that calls into |
99 * libfontconfig. This does not affect the refcnt of the returned instance. | 97 * libfontconfig. This does not affect the refcnt of the returned instance. |
100 * The mutex may be used to guarantee the singleton is only constructed onc
e. | |
101 */ | 98 */ |
102 static SkFontConfigInterface* GetSingletonDirectInterface(SkBaseMutex* mutex
); | 99 static SkFontConfigInterface* GetSingletonDirectInterface(); |
103 | 100 |
104 // New APIS, which have default impls for now (which do nothing) | 101 // New APIS, which have default impls for now (which do nothing) |
105 | 102 |
106 virtual SkDataTable* getFamilyNames() { return SkDataTable::NewEmpty(); } | 103 virtual SkDataTable* getFamilyNames() { return SkDataTable::NewEmpty(); } |
107 virtual bool matchFamilySet(const char inFamilyName[], | 104 virtual bool matchFamilySet(const char inFamilyName[], |
108 SkString* outFamilyName, | 105 SkString* outFamilyName, |
109 SkTArray<FontIdentity>*) { | 106 SkTArray<FontIdentity>*) { |
110 return false; | 107 return false; |
111 } | 108 } |
112 typedef SkRefCnt INHERITED; | 109 typedef SkRefCnt INHERITED; |
113 }; | 110 }; |
114 | 111 |
115 #endif | 112 #endif |
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