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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; | 17 struct SkBaseMutex; |
| 18 | 18 |
| 19 /** | 19 /** |
| 20 * \class SkFontConfigInterface | 20 * \class SkFontConfigInterface |
| 21 * | 21 * |
| 22 * Provides SkFontHost clients with access to fontconfig services. They will | 22 * A simple interface for remotable font management. |
| 23 * access the global instance found in RefGlobal(). | 23 * The global instance can be found with RefGlobal(). |
| 24 */ | 24 */ |
| 25 class SK_API SkFontConfigInterface : public SkRefCnt { | 25 class SK_API SkFontConfigInterface : public SkRefCnt { |
| 26 public: | 26 public: |
| 27 SK_DECLARE_INST_COUNT(SkFontConfigInterface) | 27 SK_DECLARE_INST_COUNT(SkFontConfigInterface) |
| 28 | 28 |
| 29 /** | 29 /** |
| 30 * Returns the global SkFontConfigInterface instance, and if it is not | 30 * Returns the global SkFontConfigInterface instance, and if it is not |
| 31 * NULL, calls ref() on it. The caller must balance this with a call to | 31 * NULL, calls ref() on it. The caller must balance this with a call to |
| 32 * unref(). | 32 * unref(). |
| 33 */ | 33 */ |
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| 92 * if the FontRef's data is not available. The caller is responsible for | 92 * if the FontRef's data is not available. The caller is responsible for |
| 93 * deleting the stream when it is done accessing the data. | 93 * deleting the stream when it is done accessing the data. |
| 94 */ | 94 */ |
| 95 virtual SkStreamAsset* openStream(const FontIdentity&) = 0; | 95 virtual SkStreamAsset* openStream(const FontIdentity&) = 0; |
| 96 | 96 |
| 97 /** | 97 /** |
| 98 * Return a singleton instance of a direct subclass that calls into | 98 * Return a singleton instance of a direct subclass that calls into |
| 99 * libfontconfig. This does not affect the refcnt of the returned instance. | 99 * 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. | 100 * The mutex may be used to guarantee the singleton is only constructed onc
e. |
| 101 */ | 101 */ |
| 102 static SkFontConfigInterface* GetSingletonDirectInterface | 102 static SkFontConfigInterface* GetSingletonDirectInterface(SkBaseMutex* mutex
= NULL); |
| 103 (SkBaseMutex* mutex = NULL); | |
| 104 | 103 |
| 105 // New APIS, which have default impls for now (which do nothing) | 104 // New APIS, which have default impls for now (which do nothing) |
| 106 | 105 |
| 107 virtual SkDataTable* getFamilyNames() { return SkDataTable::NewEmpty(); } | 106 virtual SkDataTable* getFamilyNames() { return SkDataTable::NewEmpty(); } |
| 108 virtual bool matchFamilySet(const char[] /*inFamilyName*/, | 107 virtual bool matchFamilySet(const char[] /*inFamilyName*/, |
| 109 SkString* /*outFamilyName*/, | 108 SkString* /*outFamilyName*/, |
| 110 SkTArray<FontIdentity>*) { | 109 SkTArray<FontIdentity>*) { |
| 111 return false; | 110 return false; |
| 112 } | 111 } |
| 113 typedef SkRefCnt INHERITED; | 112 typedef SkRefCnt INHERITED; |
| 114 }; | 113 }; |
| 115 | 114 |
| 116 #endif | 115 #endif |
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