/*
*******************************************************************************
* Copyright (C) 1996-2007, International Business Machines
* Corporation and others. All Rights Reserved.
*******************************************************************************
*/
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
#include "unicode/ucal.h"
#include "unicode/uloc.h"
#include "unicode/calendar.h"
#include "unicode/timezone.h"
#include "unicode/gregocal.h"
#include "unicode/simpletz.h"
#include "unicode/ustring.h"
#include "unicode/strenum.h"
#include "cmemory.h"
#include "ustrenum.h"
U_NAMESPACE_USE
static TimeZone*
_createTimeZone(const UChar* zoneID, int32_t len, UErrorCode* ec) {
TimeZone* zone = NULL;
if (ec!=NULL && U_SUCCESS(*ec)) {
// Note that if zoneID is invalid, we get back GMT. This odd
// behavior is by design and goes back to the JDK. The only
// failure we will see is a memory allocation failure.
int32_t l = (len<0 ? u_strlen(zoneID) : len);
UnicodeString zoneStrID;
zoneStrID.setTo((UBool)(len < 0), zoneID, l); /* temporary read-only alias */
zone = TimeZone::createTimeZone(zoneStrID);
if (zone == NULL) {
*ec = U_MEMORY_ALLOCATION_ERROR;
}
}
return zone;
}
U_CAPI UEnumeration* U_EXPORT2
ucal_openTimeZones(UErrorCode* ec) {
return uenum_openStringEnumeration(TimeZone::createEnumeration(), ec);
}
U_CAPI UEnumeration* U_EXPORT2
ucal_openCountryTimeZones(const char* country, UErrorCode* ec) {
return uenum_openStringEnumeration(TimeZone::createEnumeration(country), ec);
}
U_CAPI int32_t U_EXPORT2
ucal_getDefaultTimeZone(UChar* result, int32_t resultCapacity, UErrorCode* ec) {
int32_t len = 0;
if (ec!=NULL && U_SUCCESS(*ec)) {
TimeZone* zone = TimeZone::createDefault();
if (zone == NULL) {
*ec = U_MEMORY_ALLOCATION_ERROR;
} else {
UnicodeString id;
zone->getID(id);
delete zone;
len = id.extract(result, resultCapacity, *ec);
}
}
return len;
}
U_CAPI void U_EXPORT2
ucal_setDefaultTimeZone(const UChar* zoneID, UErrorCode* ec) {
TimeZone* zone = _createTimeZone(zoneID, -1, ec);
if (zone != NULL) {
TimeZone::adoptDefault(zone);
}
}
U_CAPI int32_t U_EXPORT2
ucal_getDSTSavings(const UChar* zoneID, UErrorCode* ec) {
int32_t result = 0;
TimeZone* zone = _createTimeZone(zoneID, -1, ec);
if (U_SUCCESS(*ec)) {
if (zone->getDynamicClassID() == SimpleTimeZone::getStaticClassID()) {
result = ((SimpleTimeZone*) zone)->getDSTSavings();
} else {
// Since there is no getDSTSavings on TimeZone, we use a
// heuristic: Starting with the current time, march
// forwards for one year, looking for DST savings.
// Stepping by weeks is sufficient.
UDate d = Calendar::getNow();
for (int32_t i=0; i<53; ++i, d+=U_MILLIS_PER_DAY*7.0) {
int32_t raw, dst;
zone->getOffset(d, FALSE, raw, dst, *ec);
if (U_FAILURE(*ec)) {
break;
} else if (dst != 0) {
result = dst;
break;
}
}
}
}
delete zone;
return result;
}
U_CAPI UDate U_EXPORT2
ucal_getNow()
{
return Calendar::getNow();
}
// ignore type until we add more subclasses
U_CAPI UCalendar* U_EXPORT2
ucal_open( const UChar* zoneID,
int32_t len,
const char* locale,
UCalendarType /*type*/,
UErrorCode* status)
{
if(U_FAILURE(*status)) return 0;
TimeZone* zone = (zoneID==NULL) ? TimeZone::createDefault()
: _createTimeZone(zoneID, len, status);
if (U_FAILURE(*status)) {
return NULL;
}
return (UCalendar*)Calendar::createInstance(zone, Locale(locale), *status);
}
U_CAPI void U_EXPORT2
ucal_close(UCalendar *cal)
{
delete (Calendar*) cal;
}
U_CAPI void U_EXPORT2
ucal_setTimeZone( UCalendar* cal,
const UChar* zoneID,
int32_t len,
UErrorCode *status)
{
if(U_FAILURE(*status))
return;
TimeZone* zone = (zoneID==NULL) ? TimeZone::createDefault()
: _createTimeZone(zoneID, len, status);
if (zone != NULL) {
((Calendar*)cal)->adoptTimeZone(zone);
}
}
U_CAPI int32_t U_EXPORT2
ucal_getTimeZoneDisplayName(const UCalendar* cal,
UCalendarDisplayNameType type,
const char *locale,
UChar* result,
int32_t resultLength,
UErrorCode* status)
{
if(U_FAILURE(*status)) return -1;
const TimeZone& tz = ((Calendar*)cal)->getTimeZone();
UnicodeString id;
if(!(result==NULL && resultLength==0)) {
// NULL destination for pure preflighting: empty dummy string
// otherwise, alias the destination buffer
id.setTo(result, 0, resultLength);
}
switch(type) {
case UCAL_STANDARD:
tz.getDisplayName(FALSE, TimeZone::LONG, Locale(locale), id);
break;
case UCAL_SHORT_STANDARD:
tz.getDisplayName(FALSE, TimeZone::SHORT, Locale(locale), id);
break;
case UCAL_DST:
tz.getDisplayName(TRUE, TimeZone::LONG, Locale(locale), id);
break;
case UCAL_SHORT_DST:
tz.getDisplayName(TRUE, TimeZone::SHORT, Locale(locale), id);
break;
}
return id.extract(result, resultLength, *status);
}
U_CAPI UBool U_EXPORT2
ucal_inDaylightTime( const UCalendar* cal,
UErrorCode* status )
{
if(U_FAILURE(*status)) return (UBool) -1;
return ((Calendar*)cal)->inDaylightTime(*status);
}
U_CAPI void U_EXPORT2
ucal_setGregorianChange(UCalendar *cal, UDate date, UErrorCode *pErrorCode) {
if(U_FAILURE(*pErrorCode)) {
return;
}
Calendar *cpp_cal = (Calendar *)cal;
if(cpp_cal->getDynamicClassID() != GregorianCalendar::getStaticClassID()) {
*pErrorCode = U_UNSUPPORTED_ERROR;
return;
}
((GregorianCalendar *)cpp_cal)->setGregorianChange(date, *pErrorCode);
}
U_CAPI UDate U_EXPORT2
ucal_getGregorianChange(const UCalendar *cal, UErrorCode *pErrorCode) {
if(U_FAILURE(*pErrorCode)) {
return (UDate)0;
}
Calendar *cpp_cal = (Calendar *)cal;
if(cpp_cal->getDynamicClassID() != GregorianCalendar::getStaticClassID()) {
*pErrorCode = U_UNSUPPORTED_ERROR;
return (UDate)0;
}
return ((GregorianCalendar *)cpp_cal)->getGregorianChange();
}
U_CAPI int32_t U_EXPORT2
ucal_getAttribute( const UCalendar* cal,
UCalendarAttribute attr)
{
switch(attr) {
case UCAL_LENIENT:
return ((Calendar*)cal)->isLenient();
case UCAL_FIRST_DAY_OF_WEEK:
return ((Calendar*)cal)->getFirstDayOfWeek();
case UCAL_MINIMAL_DAYS_IN_FIRST_WEEK:
return ((Calendar*)cal)->getMinimalDaysInFirstWeek();
default:
break;
}
return -1;
}
U_CAPI void U_EXPORT2
ucal_setAttribute( UCalendar* cal,
UCalendarAttribute attr,
int32_t newValue)
{
switch(attr) {
case UCAL_LENIENT:
((Calendar*)cal)->setLenient((UBool)newValue);
break;
case UCAL_FIRST_DAY_OF_WEEK:
((Calendar*)cal)->setFirstDayOfWeek((UCalendarDaysOfWeek)newValue);
break;
case UCAL_MINIMAL_DAYS_IN_FIRST_WEEK:
((Calendar*)cal)->setMinimalDaysInFirstWeek((uint8_t)newValue);
break;
}
}
U_CAPI const char* U_EXPORT2
ucal_getAvailable(int32_t index)
{
return uloc_getAvailable(index);
}
U_CAPI int32_t U_EXPORT2
ucal_countAvailable()
{
return uloc_countAvailable();
}
U_CAPI UDate U_EXPORT2
ucal_getMillis( const UCalendar* cal,
UErrorCode* status)
{
if(U_FAILURE(*status)) return (UDate) 0;
return ((Calendar*)cal)->getTime(*status);
}
U_CAPI void U_EXPORT2
ucal_setMillis( UCalendar* cal,
UDate dateTime,
UErrorCode* status )
{
if(U_FAILURE(*status)) return;
((Calendar*)cal)->setTime(dateTime, *status);
}
// TBD: why does this take an UErrorCode?
U_CAPI void U_EXPORT2
ucal_setDate( UCalendar* cal,
int32_t year,
int32_t month,
int32_t date,
UErrorCode *status)
{
if(U_FAILURE(*status)) return;
((Calendar*)cal)->set(year, month, date);
}
// TBD: why does this take an UErrorCode?
U_CAPI void U_EXPORT2
ucal_setDateTime( UCalendar* cal,
int32_t year,
int32_t month,
int32_t date,
int32_t hour,
int32_t minute,
int32_t second,
UErrorCode *status)
{
if(U_FAILURE(*status)) return;
((Calendar*)cal)->set(year, month, date, hour, minute, second);
}
U_CAPI UBool U_EXPORT2
ucal_equivalentTo( const UCalendar* cal1,
const UCalendar* cal2)
{
return ((Calendar*)cal1)->isEquivalentTo(*((Calendar*)cal2));
}
U_CAPI void U_EXPORT2
ucal_add( UCalendar* cal,
UCalendarDateFields field,
int32_t amount,
UErrorCode* status)
{
if(U_FAILURE(*status)) return;
((Calendar*)cal)->add(field, amount, *status);
}
U_CAPI void U_EXPORT2
ucal_roll( UCalendar* cal,
UCalendarDateFields field,
int32_t amount,
UErrorCode* status)
{
if(U_FAILURE(*status)) return;
((Calendar*)cal)->roll(field, amount, *status);
}
U_CAPI int32_t U_EXPORT2
ucal_get( const UCalendar* cal,
UCalendarDateFields field,
UErrorCode* status )
{
if(U_FAILURE(*status)) return -1;
return ((Calendar*)cal)->get(field, *status);
}
U_CAPI void U_EXPORT2
ucal_set( UCalendar* cal,
UCalendarDateFields field,
int32_t value)
{
((Calendar*)cal)->set(field, value);
}
U_CAPI UBool U_EXPORT2
ucal_isSet( const UCalendar* cal,
UCalendarDateFields field)
{
return ((Calendar*)cal)->isSet(field);
}
U_CAPI void U_EXPORT2
ucal_clearField( UCalendar* cal,
UCalendarDateFields field)
{
((Calendar*)cal)->clear(field);
}
U_CAPI void U_EXPORT2
ucal_clear(UCalendar* calendar)
{
((Calendar*)calendar)->clear();
}
U_CAPI int32_t U_EXPORT2
ucal_getLimit( const UCalendar* cal,
UCalendarDateFields field,
UCalendarLimitType type,
UErrorCode *status)
{
if(status==0 || U_FAILURE(*status)) {
return -1;
}
switch(type) {
case UCAL_MINIMUM:
return ((Calendar*)cal)->getMinimum(field);
case UCAL_MAXIMUM:
return ((Calendar*)cal)->getMaximum(field);
case UCAL_GREATEST_MINIMUM:
return ((Calendar*)cal)->getGreatestMinimum(field);
case UCAL_LEAST_MAXIMUM:
return ((Calendar*)cal)->getLeastMaximum(field);
case UCAL_ACTUAL_MINIMUM:
return ((Calendar*)cal)->getActualMinimum(field,
*status);
case UCAL_ACTUAL_MAXIMUM:
return ((Calendar*)cal)->getActualMaximum(field,
*status);
default:
break;
}
return -1;
}
U_CAPI const char * U_EXPORT2
ucal_getLocaleByType(const UCalendar *cal, ULocDataLocaleType type, UErrorCode* status)
{
if (cal == NULL) {
if (U_SUCCESS(*status)) {
*status = U_ILLEGAL_ARGUMENT_ERROR;
}
return NULL;
}
return ((Calendar*)cal)->getLocaleID(type, *status);
}
U_CAPI const char * U_EXPORT2
ucal_getTZDataVersion(UErrorCode* status)
{
return TimeZone::getTZDataVersion(*status);
}
#endif /* #if !UCONFIG_NO_FORMATTING */