XBCalendarVM constructor

XBCalendarVM({ required BuildContext context, })

Implementation

XBCalendarVM({required super.context}) {
  markDates = widget.initMarkDates;
  _dataStreamSubscription = widget.dataStream?.listen((event) {
    markDates = event.markDates;
    if (markDates == null) return;
    for (var element in years.values) {
      element.updateMark(markDates);
    }
    notify();
  });
  isSingle = widget.isSingle;
  tempContext ??= context;
  createDateTime = DateTime.now();
  minDateTime = widget.minDateTime ?? DateTime(createYear - 25, 1);
  maxDateTime = widget.maxDateTime ?? DateTime(createYear + 25, 1);
  for (int i = minDateTime.year; i <= maxDateTime.year; i++) {
    if (i < minDateTime.year || i > maxDateTime.year) continue;
    years[i] = XBCalendarYear(
        year: i,
        minDateTime: minDateTime,
        maxDateTime: maxDateTime,
        minEnableDateTime: widget.minEnableDateTime,
        maxEnableDateTime: widget.maxEnableDateTime,
        markDates: markDates);
  }
  selectedDates = widget.selectedDates ?? [];
  selectedDates.sort();
  updateYears();
  controller = ScrollController(initialScrollOffset: initOffset);
  controller.addListener(offsetListener);
  weekDaysWidgets = weekDays
      .map((day) => Expanded(child: Center(child: Text(day))))
      .toList();
  _calcScrollYearInt();
  _calcScrollMonthInt();
}