onTap method
dynamic
onTap()
Implementation
onTap() {
if (position == null) return;
int row = position!.dy ~/
((xbCalendarDayH ?? xbCalendarDayW) + xbCalendarDayRowGap);
int col = position!.dx ~/ xbCalendarDayW;
int index = row * 7 + col - widget.month.firstDayWeekDayIndex;
final day = widget.month.days[index];
if (day.isEnable == false) return;
widget.onSelectDate(day.dateTime);
}