/**
* Sets the GregorianCalendar change date. This is the point when the switch
* from Julian dates to Gregorian dates occurred. Default is 00:00:00 local
* time, October 15, 1582. Previous to this time and date will be Julian
* dates.
*
* @param float The given Gregorian cutover date.
*
* @author Dominik del Bondio <*****@*****.**>
* @author The ICU Project
* @since 0.11.0
*/
public function setGregorianChange($date)
{
$this->fGregorianCutover = $date;
// Precompute two internal variables which we use to do the actual
// cutover computations. These are the normalized cutover, which is the
// midnight at or before the cutover, and the cutover year. The
// normalized cutover is in pure date milliseconds; it contains no time
// of day or timezone component, and it used to compare against other
// pure date values.
$cutoverDay = (int) floor($this->fGregorianCutover / AgaviDateDefinitions::MILLIS_PER_DAY);
$this->fNormalizedGregorianCutover = $cutoverDay * AgaviDateDefinitions::MILLIS_PER_DAY;
// Handle the rare case of numeric overflow. If the user specifies a
// change of UDate(Long.MIN_VALUE), in order to get a pure Gregorian
// calendar, then the epoch day is -106751991168, which when multiplied
// by ONE_DAY gives 9223372036794351616 -- the negative value is too
// large for 64 bits, and overflows into a positive value. We correct
// this by using the next day, which for all intents is semantically
// equivalent.
if ($cutoverDay < 0 && $this->fNormalizedGregorianCutover > 0) {
$this->fNormalizedGregorianCutover = ($cutoverDay + 1) * AgaviDateDefinitions::MILLIS_PER_DAY;
}
// Normalize the year so BC values are represented as 0 and negative
// values.
$cal = new AgaviGregorianCalendar($this->getTimeZone());
$cal->setTime($date);
$this->fGregorianCutoverYear = $cal->get(AgaviDateDefinitions::YEAR);
if ($cal->get(AgaviDateDefinitions::ERA) == self::BC) {
$this->fGregorianCutoverYear = 1 - $this->fGregorianCutoverYear;
}
$this->fCutoverJulianDay = $cutoverDay;
}
/**
* Verify that various fields on a known date are set correctly.
*/
public function testFields060()
{
$year = 1997;
$month = AgaviDateDefinitions::OCTOBER;
$dDate = 22;
$calendar = new AgaviGregorianCalendar($this->tm, $year, $month, $dDate);
$expectedFields = array(AgaviDateDefinitions::YEAR => 1997, AgaviDateDefinitions::MONTH => AgaviDateDefinitions::OCTOBER, AgaviDateDefinitions::DATE => 22, AgaviDateDefinitions::DAY_OF_WEEK => AgaviDateDefinitions::WEDNESDAY, AgaviDateDefinitions::DAY_OF_WEEK_IN_MONTH => 4, AgaviDateDefinitions::DAY_OF_YEAR => 295);
foreach ($expectedFields as $field => $value) {
$fieldValue = $calendar->get($field);
$this->assertEquals($value, (int) $fieldValue);
}
}
