gfx/skia/trunk/include/ports/SkFontMgr.h@129ffea94266
gfx/skia/trunk/include/ports/SkFontMgr.h
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
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 */
8 #ifndef SkFontMgr_DEFINED
9 #define SkFontMgr_DEFINED
11 #include "SkRefCnt.h"
12 #include "SkFontStyle.h"
14 class SkData;
15 class SkStream;
16 class SkString;
17 class SkTypeface;
19 class SK_API SkFontStyleSet : public SkRefCnt {
20 public:
21 SK_DECLARE_INST_COUNT(SkFontStyleSet)
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;
28 static SkFontStyleSet* CreateEmpty();
30 private:
31 typedef SkRefCnt INHERITED;
32 };
34 class SkTypeface;
36 class SK_API SkFontMgr : public SkRefCnt {
37 public:
38 SK_DECLARE_INST_COUNT(SkFontMgr)
40 int countFamilies() const;
41 void getFamilyName(int index, SkString* familyName) const;
42 SkFontStyleSet* createStyleSet(int index) const;
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;
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;
58 SkTypeface* matchFaceStyle(const SkTypeface*, const SkFontStyle&) const;
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;
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;
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;
82 SkTypeface* legacyCreateTypeface(const char familyName[],
83 unsigned typefaceStyleBits) const;
85 /**
86 * Return a ref to the default fontmgr. The caller must call unref() on
87 * the returned object.
88 */
89 static SkFontMgr* RefDefault();
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;
96 /** May return NULL if the name is not found. */
97 virtual SkFontStyleSet* onMatchFamily(const char familyName[]) const = 0;
99 virtual SkTypeface* onMatchFamilyStyle(const char familyName[],
100 const SkFontStyle&) const = 0;
101 virtual SkTypeface* onMatchFaceStyle(const SkTypeface*,
102 const SkFontStyle&) const = 0;
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;
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);
114 typedef SkRefCnt INHERITED;
115 };
117 #endif
