public static function compare(Date $left, Date $right)
{
if ($left->toStamp() == $right->toStamp()) {
return 0;
} else {
return $left->toStamp() > $right->toStamp() ? 1 : -1;
}
}
public function __construct(Date $base, $weekStart = Timestamp::WEEKDAY_MONDAY)
{
$firstDayOfMonth = Date::create($base->getYear() . '-' . $base->getMonth() . '-01');
$lastDayOfMonth = Date::create($base->getYear() . '-' . $base->getMonth() . '-' . date('t', $base->toStamp()));
$start = $firstDayOfMonth->getFirstDayOfWeek($weekStart);
$end = $lastDayOfMonth->getLastDayOfWeek($weekStart);
$this->monthRange = DateRange::create()->lazySet($firstDayOfMonth, $lastDayOfMonth);
$this->fullRange = DateRange::create()->lazySet($start, $end);
$rawDays = $this->fullRange->split();
$this->fullLength = 0;
foreach ($rawDays as $rawDay) {
$day = CalendarDay::create($rawDay->toStamp());
if ($this->monthRange->contains($day)) {
$day->setOutside(false);
} else {
$day->setOutside(true);
}
$this->days[$day->toDate()] = $day;
$weekNumber = floor($this->fullLength / 7);
if (!isset($this->weeks[$weekNumber])) {
$this->weeks[$weekNumber] = CalendarWeek::create();
}
$this->weeks[$weekNumber]->addDay($day);
++$this->fullLength;
}
++$this->fullLength;
}
/**
* result is read-only, no error checking
* @return DateRange
**/
public function lightCopyOnClip(DateRange $range)
{
$copy = DateRange::create();
if ($range->start && ($this->start && $range->start->toStamp() > $this->start->toStamp() || !$this->start)) {
$copy->start = $range->start;
} else {
$copy->start = $this->start;
}
if ($range->end && ($this->end && $range->end->toStamp() < $this->end->toStamp() || !$this->end)) {
$copy->end = $range->end;
} else {
$copy->end = $this->end;
}
return $copy;
}
protected function checkRanges(Date $date)
{
return (!$this->min || $this->min->toStamp() <= $date->toStamp()) && (!$this->max || $this->max->toStamp() >= $date->toStamp());
}
