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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 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 SkOTUtils_DEFINED | 8 #ifndef SkOTUtils_DEFINED |
9 #define SkOTUtils_DEFINED | 9 #define SkOTUtils_DEFINED |
10 | 10 |
11 #include "SkOTTableTypes.h" | 11 #include "SkOTTableTypes.h" |
12 #include "SkOTTable_name.h" | 12 #include "SkOTTable_name.h" |
13 #include "SkTypeface.h" | 13 #include "SkTypeface.h" |
14 | 14 |
15 class SkData; | 15 class SkData; |
16 class SkStream; | 16 class SkStream; |
17 | 17 |
18 struct SkOTUtils { | 18 struct SkOTUtils { |
19 /** | 19 /** |
20 * Calculates the OpenType checksum for data. | 20 * Calculates the OpenType checksum for data. |
21 */ | 21 */ |
22 static uint32_t CalcTableChecksum(SK_OT_ULONG *data, size_t length); | 22 static uint32_t CalcTableChecksum(SK_OT_ULONG *data, size_t length); |
23 | 23 |
24 /** | 24 /** |
25 * Renames an sfnt font. On failure (invalid data or not an sfnt font) | 25 * Renames an sfnt font. On failure (invalid data or not an sfnt font) |
26 * returns NULL. | 26 * returns nullptr. |
27 * | 27 * |
28 * Essentially, this removes any existing 'name' table and replaces it | 28 * Essentially, this removes any existing 'name' table and replaces it |
29 * with a new one in which FontFamilyName, FontSubfamilyName, | 29 * with a new one in which FontFamilyName, FontSubfamilyName, |
30 * UniqueFontIdentifier, FullFontName, and PostscriptName are fontName. | 30 * UniqueFontIdentifier, FullFontName, and PostscriptName are fontName. |
31 * | 31 * |
32 * The new 'name' table records will be written with the Windows, | 32 * The new 'name' table records will be written with the Windows, |
33 * UnicodeBMPUCS2, and English_UnitedStates settings. | 33 * UnicodeBMPUCS2, and English_UnitedStates settings. |
34 * | 34 * |
35 * fontName and fontNameLen must be specified in terms of ASCII chars. | 35 * fontName and fontNameLen must be specified in terms of ASCII chars. |
36 * | 36 * |
37 * Does not affect fontData's ownership. | 37 * Does not affect fontData's ownership. |
38 */ | 38 */ |
39 static SkData* RenameFont(SkStreamAsset* fontData, const char* fontName, int
fontNameLen); | 39 static SkData* RenameFont(SkStreamAsset* fontData, const char* fontName, int
fontNameLen); |
40 | 40 |
41 /** An implementation of LocalizedStrings which obtains it's data from a 'na
me' table. */ | 41 /** An implementation of LocalizedStrings which obtains it's data from a 'na
me' table. */ |
42 class LocalizedStrings_NameTable : public SkTypeface::LocalizedStrings { | 42 class LocalizedStrings_NameTable : public SkTypeface::LocalizedStrings { |
43 public: | 43 public: |
44 /** Takes ownership of the nameTableData and will free it with SK_DELETE
. */ | 44 /** Takes ownership of the nameTableData and will free it with SK_DELETE
. */ |
45 LocalizedStrings_NameTable(SkOTTableName* nameTableData, | 45 LocalizedStrings_NameTable(SkOTTableName* nameTableData, |
46 SkOTTableName::Record::NameID::Predefined::Va
lue types[], | 46 SkOTTableName::Record::NameID::Predefined::Va
lue types[], |
47 int typesCount) | 47 int typesCount) |
48 : fTypes(types), fTypesCount(typesCount), fTypesIndex(0) | 48 : fTypes(types), fTypesCount(typesCount), fTypesIndex(0) |
49 , fNameTableData(nameTableData), fFamilyNameIter(*nameTableData, fTy
pes[fTypesIndex]) | 49 , fNameTableData(nameTableData), fFamilyNameIter(*nameTableData, fTy
pes[fTypesIndex]) |
50 { } | 50 { } |
51 | 51 |
52 /** Creates an iterator over all the family names in the 'name' table of
a typeface. | 52 /** Creates an iterator over all the family names in the 'name' table of
a typeface. |
53 * If no valid 'name' table can be found, returns NULL. | 53 * If no valid 'name' table can be found, returns nullptr. |
54 */ | 54 */ |
55 static LocalizedStrings_NameTable* CreateForFamilyNames(const SkTypeface
& typeface); | 55 static LocalizedStrings_NameTable* CreateForFamilyNames(const SkTypeface
& typeface); |
56 | 56 |
57 bool next(SkTypeface::LocalizedString* localizedString) override; | 57 bool next(SkTypeface::LocalizedString* localizedString) override; |
58 private: | 58 private: |
59 static SkOTTableName::Record::NameID::Predefined::Value familyNameTypes[
3]; | 59 static SkOTTableName::Record::NameID::Predefined::Value familyNameTypes[
3]; |
60 | 60 |
61 SkOTTableName::Record::NameID::Predefined::Value* fTypes; | 61 SkOTTableName::Record::NameID::Predefined::Value* fTypes; |
62 int fTypesCount; | 62 int fTypesCount; |
63 int fTypesIndex; | 63 int fTypesIndex; |
(...skipping 18 matching lines...) Expand all Loading... |
82 } | 82 } |
83 | 83 |
84 private: | 84 private: |
85 SkString fName; | 85 SkString fName; |
86 SkString fLanguage; | 86 SkString fLanguage; |
87 bool fHasNext; | 87 bool fHasNext; |
88 }; | 88 }; |
89 }; | 89 }; |
90 | 90 |
91 #endif | 91 #endif |
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