/**
* call-seq:
* calendar.time_zone(locale = nil)
*
* Returns the TimeZone name used in this UCalendar. Name is returned in requested locale or default, if not set.
*/
VALUE icu4r_cal_get_tz (int argc, VALUE * argv, VALUE obj)
{
UErrorCode status = U_ZERO_ERROR;
UChar * buf = NULL;
long capa = 0;
char *locale = NULL;
VALUE loc;
if( rb_scan_args(argc, argv, "01", &loc) == 1){
Check_Type(loc, T_STRING);
locale = RSTRING_PTR(loc);
}
capa = ucal_getTimeZoneDisplayName(UCALENDAR(obj), UCAL_STANDARD, locale, buf, capa, &status);
if( U_BUFFER_OVERFLOW_ERROR == status) {
buf = ALLOC_N(UChar, capa+1);
status = U_ZERO_ERROR;
capa = ucal_getTimeZoneDisplayName(UCALENDAR(obj), UCAL_STANDARD, locale, buf, capa, &status);
return icu_ustr_new_set(buf, capa, capa+1);
}
ICU_RAISE(status);
return Qnil;
}
// Qt wrapper around ucal_getTimeZoneDisplayName()
static QString ucalTimeZoneDisplayName(UCalendar *ucal, QTimeZone::TimeType timeType,
QTimeZone::NameType nameType,
const QString &localeCode)
{
int32_t size = 50;
QString result(size, Qt::Uninitialized);
UErrorCode status = U_ZERO_ERROR;
// size = ucal_getTimeZoneDisplayName(cal, type, locale, result, resultLength, status)
size = ucal_getTimeZoneDisplayName(ucal,
ucalDisplayNameType(timeType, nameType),
localeCode.toUtf8(),
reinterpret_cast<UChar *>(result.data()),
size,
&status);
// If overflow, then resize and retry
if (status == U_BUFFER_OVERFLOW_ERROR) {
result.resize(size);
status = U_ZERO_ERROR;
size = ucal_getTimeZoneDisplayName(ucal,
ucalDisplayNameType(timeType, nameType),
localeCode.toUtf8(),
reinterpret_cast<UChar *>(result.data()),
size,
&status);
}
// If successful on first or second go, resize and return
if (U_SUCCESS(status)) {
result.resize(size);
return result;
}
return QString();
}
