private DayScheduleItemsArranger(AccountDataItem account, SemesterItemsViewGroup semesterItems, ScheduleViewItemsGroup scheduleGroup, DateTime date, double heightOfHour, double spacingWhenNoAdditionalItems, double spacingWithAdditionalItems, double widthOfCollapsed, bool includeHomeworkAndHolidays)
{
if (semesterItems.Semester == null)
{
throw new NullReferenceException("Semester was null");
}
_semesterItems = semesterItems;
semesterItems.OnItemsChanged += new WeakEventHandler <EventArgs>(SemesterGroup_OnItemsChanged).Handler;
scheduleGroup.OnChangesOccurred += new WeakEventHandler <DataChangedEvent>(ScheduleViewItemsGroup_OnChangesOccurred).Handler;
Date = date;
_spacingWhenNoAdditionalItems = spacingWhenNoAdditionalItems;
_spacingWithAdditionalItems = spacingWithAdditionalItems;
_widthOfCollapsed = widthOfCollapsed;
Account = account;
_schoolTimeZone = account.SchoolTimeZone;
HeightOfHour = heightOfHour;
MinDuration = TimeSpan.FromHours(widthOfCollapsed / HeightOfHour);
IsDifferentSemester = !semesterItems.Semester.IsDateDuringThisSemester(date);
SchedulesOnDay schedules = null;
if (!IsDifferentSemester)
{
schedules = SchedulesOnDay.Get(semesterItems.Classes, date, account.GetWeekOnDifferentDate(date), trackChanges: true);
schedules.CollectionChanged += new WeakEventHandler <NotifyCollectionChangedEventArgs>(Schedules_CollectionChanged).Handler;
}
_schedules = schedules;
if (includeHomeworkAndHolidays)
{
_events = HomeworksOnDay.Get(semesterItems.Items, date);
_events.CollectionChanged += new WeakEventHandler <NotifyCollectionChangedEventArgs>(Events_CollectionChanged).Handler;
}
else
{
_events = new MyObservableList <BaseViewItemHomeworkExamGrade>();
}
if (includeHomeworkAndHolidays)
{
_holidays = HolidaysOnDay.Create(semesterItems.Items, date);
_holidays.CollectionChanged += new WeakEventHandler <NotifyCollectionChangedEventArgs>(_holidays_CollectionChanged).Handler;
}
else
{
_holidays = new MyObservableList <ViewItemHoliday>();
}
Initialize(schedules, _events, _holidays);
}
public static HomeworksOnDay Get(MyObservableList <BaseViewItemHomeworkExamGrade> mainList, DateTime date)
{
HomeworksOnDay answer;
for (int i = 0; i < _cached.Count; i++)
{
if (_cached[i].TryGetTarget(out answer))
{
if (answer.Date == date.Date && answer.MainList == mainList)
{
return(answer);
}
}
else
{
_cached.RemoveAt(i);
i--;
}
}
answer = new HomeworksOnDay(mainList, date);
_cached.Add(new WeakReference <HomeworksOnDay>(answer));
return(answer);
}