blob: 923008ea4dabbe551eea04f95e9fa7fbdf322c95 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
/*
* Copyright 2012 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkLanguage_DEFINED
#define SkLanguage_DEFINED
#include "SkTypes.h"
#ifdef SK_BUILD_FOR_ANDROID
#include "SkString.h"
struct SkLanguageInfo {
SkLanguageInfo(const char* tag) : fTag(tag) { }
SkString fTag; //! BCP 47 language identifier
};
/** \class SkLanguage
The SkLanguage class represents a human written language, and is used by
text draw operations to determine which glyph to draw when drawing
characters with variants (ie Han-derived characters).
*/
class SkLanguage {
public:
SkLanguage() : fInfo(getInfo("")) { }
SkLanguage(const char* tag) : fInfo(getInfo(tag)) { }
SkLanguage(const SkLanguage& b) : fInfo(b.fInfo) { }
/** Gets a BCP 47 language identifier for this SkLanguage.
@return a BCP 47 language identifier representing this language
*/
const SkString& getTag() const { return fInfo->fTag; }
/** Performs BCP 47 fallback to return an SkLanguage one step more general.
@return an SkLanguage one step more general
*/
SkLanguage getParent() const;
bool operator==(const SkLanguage& b) const {
return fInfo == b.fInfo;
}
bool operator!=(const SkLanguage& b) const {
return fInfo != b.fInfo;
}
bool operator<(const SkLanguage& b) const {
return fInfo < b.fInfo;
}
bool operator>(const SkLanguage& b) const {
return fInfo > b.fInfo;
}
SkLanguage& operator=(const SkLanguage& b) {
fInfo = b.fInfo;
return *this;
}
private:
const SkLanguageInfo* fInfo;
static const SkLanguageInfo* getInfo(const char* tag);
};
#endif // #ifdef SK_BUILD_FOR_ANDROID
#endif // #ifndef SkLanguage_DEFINED
|
