The Tor Browser / file comparison
comparison: gfx/skia/trunk/include/ports/SkFontMgr.h
gfx/skia/trunk/include/ports/SkFontMgr.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
inserted
replaced
| -1:000000000000 | 0:f28922e06819 |
|---|---|
| 1 /* | |
| 2 * Copyright 2013 Google Inc. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license that can be | |
| 5 * found in the LICENSE file. | |
| 6 */ | |
| 7 | |
| 8 #ifndef SkFontMgr_DEFINED | |
| 9 #define SkFontMgr_DEFINED | |
| 10 | |
| 11 #include "SkRefCnt.h" | |
| 12 #include "SkFontStyle.h" | |
| 13 | |
| 14 class SkData; | |
| 15 class SkStream; | |
| 16 class SkString; | |
| 17 class SkTypeface; | |
| 18 | |
| 19 class SK_API SkFontStyleSet : public SkRefCnt { | |
| 20 public: | |
| 21 SK_DECLARE_INST_COUNT(SkFontStyleSet) | |
| 22 | |
| 23 virtual int count() = 0; | |
| 24 virtual void getStyle(int index, SkFontStyle*, SkString* style) = 0; | |
| 25 virtual SkTypeface* createTypeface(int index) = 0; | |
| 26 virtual SkTypeface* matchStyle(const SkFontStyle& pattern) = 0; | |
| 27 | |
| 28 static SkFontStyleSet* CreateEmpty(); | |
| 29 | |
| 30 private: | |
| 31 typedef SkRefCnt INHERITED; | |
| 32 }; | |
| 33 | |
| 34 class SkTypeface; | |
| 35 | |
| 36 class SK_API SkFontMgr : public SkRefCnt { | |
| 37 public: | |
| 38 SK_DECLARE_INST_COUNT(SkFontMgr) | |
| 39 | |
| 40 int countFamilies() const; | |
| 41 void getFamilyName(int index, SkString* familyName) const; | |
| 42 SkFontStyleSet* createStyleSet(int index) const; | |
| 43 | |
| 44 /** | |
| 45 * The caller must call unref() on the returned object. | |
| 46 * Never returns NULL; will return an empty set if the name is not found. | |
| 47 */ | |
| 48 SkFontStyleSet* matchFamily(const char familyName[]) const; | |
| 49 | |
| 50 /** | |
| 51 * Find the closest matching typeface to the specified familyName and style | |
| 52 * and return a ref to it. The caller must call unref() on the returned | |
| 53 * object. Will never return NULL, as it will return the default font if | |
| 54 * no matching font is found. | |
| 55 */ | |
| 56 SkTypeface* matchFamilyStyle(const char familyName[], const SkFontStyle&) const; | |
| 57 | |
| 58 SkTypeface* matchFaceStyle(const SkTypeface*, const SkFontStyle&) const; | |
| 59 | |
| 60 /** | |
| 61 * Create a typeface for the specified data and TTC index (pass 0 for none) | |
| 62 * or NULL if the data is not recognized. The caller must call unref() on | |
| 63 * the returned object if it is not null. | |
| 64 */ | |
| 65 SkTypeface* createFromData(SkData*, int ttcIndex = 0) const; | |
| 66 | |
| 67 /** | |
| 68 * Create a typeface for the specified stream and TTC index | |
| 69 * (pass 0 for none) or NULL if the stream is not recognized. The caller | |
| 70 * must call unref() on the returned object if it is not null. | |
| 71 */ | |
| 72 SkTypeface* createFromStream(SkStream*, int ttcIndex = 0) const; | |
| 73 | |
| 74 /** | |
| 75 * Create a typeface for the specified fileName and TTC index | |
| 76 * (pass 0 for none) or NULL if the file is not found, or its contents are | |
| 77 * not recognized. The caller must call unref() on the returned object | |
| 78 * if it is not null. | |
| 79 */ | |
| 80 SkTypeface* createFromFile(const char path[], int ttcIndex = 0) const; | |
| 81 | |
| 82 SkTypeface* legacyCreateTypeface(const char familyName[], | |
| 83 unsigned typefaceStyleBits) const; | |
| 84 | |
| 85 /** | |
| 86 * Return a ref to the default fontmgr. The caller must call unref() on | |
| 87 * the returned object. | |
| 88 */ | |
| 89 static SkFontMgr* RefDefault(); | |
| 90 | |
| 91 protected: | |
| 92 virtual int onCountFamilies() const = 0; | |
| 93 virtual void onGetFamilyName(int index, SkString* familyName) const = 0; | |
| 94 virtual SkFontStyleSet* onCreateStyleSet(int index)const = 0; | |
| 95 | |
| 96 /** May return NULL if the name is not found. */ | |
| 97 virtual SkFontStyleSet* onMatchFamily(const char familyName[]) const = 0; | |
| 98 | |
| 99 virtual SkTypeface* onMatchFamilyStyle(const char familyName[], | |
| 100 const SkFontStyle&) const = 0; | |
| 101 virtual SkTypeface* onMatchFaceStyle(const SkTypeface*, | |
| 102 const SkFontStyle&) const = 0; | |
| 103 | |
| 104 virtual SkTypeface* onCreateFromData(SkData*, int ttcIndex) const = 0; | |
| 105 virtual SkTypeface* onCreateFromStream(SkStream*, int ttcIndex) const = 0; | |
| 106 virtual SkTypeface* onCreateFromFile(const char path[], int ttcIndex) const = 0; | |
| 107 | |
| 108 virtual SkTypeface* onLegacyCreateTypeface(const char familyName[], | |
| 109 unsigned styleBits) const = 0; | |
| 110 private: | |
| 111 static SkFontMgr* Factory(); // implemented by porting layer | |
| 112 friend void set_up_default(SkFontMgr** singleton); | |
| 113 | |
| 114 typedef SkRefCnt INHERITED; | |
| 115 }; | |
| 116 | |
| 117 #endif |
