/src/icu/icu4c/source/i18n/buddhcal.cpp
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1 | | // © 2016 and later: Unicode, Inc. and others. |
2 | | // License & terms of use: http://www.unicode.org/copyright.html |
3 | | /* |
4 | | ******************************************************************************* |
5 | | * Copyright (C) 2003-2013, International Business Machines Corporation and * |
6 | | * others. All Rights Reserved. * |
7 | | ******************************************************************************* |
8 | | * |
9 | | * File BUDDHCAL.CPP |
10 | | * |
11 | | * Modification History: |
12 | | * 05/13/2003 srl copied from gregocal.cpp |
13 | | * |
14 | | */ |
15 | | |
16 | | #include "unicode/utypes.h" |
17 | | |
18 | | #if !UCONFIG_NO_FORMATTING |
19 | | |
20 | | #include "buddhcal.h" |
21 | | #include "gregoimp.h" |
22 | | #include "unicode/gregocal.h" |
23 | | #include "umutex.h" |
24 | | #include <float.h> |
25 | | |
26 | | U_NAMESPACE_BEGIN |
27 | | |
28 | | UOBJECT_DEFINE_RTTI_IMPLEMENTATION(BuddhistCalendar) |
29 | | |
30 | | //static const int32_t kMaxEra = 0; // only 1 era |
31 | | |
32 | | static const int32_t kBuddhistEraStart = -543; // 544 BC (Gregorian) |
33 | | |
34 | | static const int32_t kGregorianEpoch = 1970; // used as the default value of EXTENDED_YEAR |
35 | | |
36 | | BuddhistCalendar::BuddhistCalendar(const Locale& aLocale, UErrorCode& success) |
37 | 238 | : GregorianCalendar(aLocale, success) |
38 | 238 | { |
39 | 238 | } |
40 | | |
41 | | BuddhistCalendar::~BuddhistCalendar() |
42 | 61.2k | { |
43 | 61.2k | } |
44 | | |
45 | | BuddhistCalendar::BuddhistCalendar(const BuddhistCalendar& source) |
46 | 61.0k | : GregorianCalendar(source) |
47 | 61.0k | { |
48 | 61.0k | } |
49 | | |
50 | | BuddhistCalendar* BuddhistCalendar::clone() const |
51 | 61.0k | { |
52 | 61.0k | return new BuddhistCalendar(*this); |
53 | 61.0k | } |
54 | | |
55 | | const char *BuddhistCalendar::getType() const |
56 | 535 | { |
57 | 535 | return "buddhist"; |
58 | 535 | } |
59 | | |
60 | | int32_t BuddhistCalendar::handleGetExtendedYear(UErrorCode& status) |
61 | 61.0k | { |
62 | 61.0k | if (U_FAILURE(status)) { |
63 | 0 | return 0; |
64 | 0 | } |
65 | | // EXTENDED_YEAR in BuddhistCalendar is a Gregorian year. |
66 | | // The default value of EXTENDED_YEAR is 1970 (Buddhist 2513) |
67 | 61.0k | if (newerField(UCAL_EXTENDED_YEAR, UCAL_YEAR) == UCAL_EXTENDED_YEAR) { |
68 | 60.3k | return internalGet(UCAL_EXTENDED_YEAR, kGregorianEpoch); |
69 | 60.3k | } |
70 | | // extended year is a gregorian year, where 1 = 1AD, 0 = 1BC, -1 = 2BC, etc |
71 | 703 | int32_t year = internalGet(UCAL_YEAR, kGregorianEpoch - kBuddhistEraStart); |
72 | 703 | if (uprv_add32_overflow(year, kBuddhistEraStart, &year)) { |
73 | 18 | status = U_ILLEGAL_ARGUMENT_ERROR; |
74 | 18 | return 0; |
75 | 18 | } |
76 | 685 | return year; |
77 | 703 | } |
78 | | |
79 | | void BuddhistCalendar::handleComputeFields(int32_t julianDay, UErrorCode& status) |
80 | 122k | { |
81 | 122k | GregorianCalendar::handleComputeFields(julianDay, status); |
82 | 122k | int32_t y = internalGet(UCAL_EXTENDED_YEAR) - kBuddhistEraStart; |
83 | 122k | internalSet(UCAL_ERA, 0); |
84 | 122k | internalSet(UCAL_YEAR, y); |
85 | 122k | } |
86 | | |
87 | | int32_t BuddhistCalendar::handleGetLimit(UCalendarDateFields field, ELimitType limitType) const |
88 | 120k | { |
89 | 120k | if(field == UCAL_ERA) { |
90 | 558 | return BE; |
91 | 558 | } |
92 | 120k | return GregorianCalendar::handleGetLimit(field,limitType); |
93 | 120k | } |
94 | | |
95 | | IMPL_SYSTEM_DEFAULT_CENTURY(BuddhistCalendar, "@calendar=buddhist") |
96 | | |
97 | | U_NAMESPACE_END |
98 | | |
99 | | #endif |