private void addTime(int value, int unit)
{
if (value == NULL_VALUE)
{
value = 1;
}
else if (value == -NULL_VALUE)
{
value = -1;
}
switch (unit)
{
case UNIT_YEAR:
_date.setYear(_date.getYear() + value);
break;
case UNIT_MONTH: {
int month = _date.getMonth() + value;
int year = _date.getYear();
if (month < 0 || month >= 12)
{
year = year + month / 12;
month = month % 12;
}
_date.setDate(year, month, _date.getDayOfMonth());
break;
}
case UNIT_FORTNIGHT:
_date.setDayOfMonth(_date.getDayOfMonth() + 14 * value);
break;
case UNIT_WEEK:
_date.setDayOfMonth(_date.getDayOfMonth() + 7 * value);
break;
case UNIT_DAY:
_date.setDayOfMonth(_date.getDayOfMonth() + value);
break;
case UNIT_HOUR:
_date.setHour(_date.getHour() + value);
break;
case UNIT_MINUTE:
_date.setMinute(_date.getMinute() + value);
break;
case UNIT_SECOND:
_date.setSecond(_date.getSecond() + value);
break;
}
}
