public static SchedulesOnDay Get(IEnumerable <ViewItemClass> classes, DateTime date, Schedule.Week week, bool trackChanges = false)
{
SchedulesOnDay answer;
for (int i = 0; i < _cached.Count; i++)
{
if (_cached[i].TryGetTarget(out answer))
{
if (answer.Date == date.Date && answer.Classes == classes)
{
if (trackChanges)
{
return(answer);
}
else
{
return(new SchedulesOnDay(answer));
}
}
}
else
{
_cached.RemoveAt(i);
i--;
}
}
answer = new SchedulesOnDay(classes, date, week, trackChanges);
if (trackChanges)
{
_cached.Add(new WeakReference <SchedulesOnDay>(answer));
}
return(answer);
}
private DayScheduleItemsArranger(AccountDataItem account, SemesterItemsViewGroup semesterItems, ScheduleViewItemsGroup scheduleGroup, DateTime date, double heightOfHour, double spacingWhenNoAdditionalItems, double spacingWithAdditionalItems, double widthOfCollapsed, bool includeTasksAndEventsAndHolidays)
{
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(account, semesterItems.Classes, date, account.GetWeekOnDifferentDate(date), trackChanges: true);
schedules.CollectionChanged += new WeakEventHandler <NotifyCollectionChangedEventArgs>(Schedules_CollectionChanged).Handler;
}
_schedules = schedules;
if (includeTasksAndEventsAndHolidays)
{
// For schedules, if tasks have a specific due time, we don't adjust the dates regardless of time zones causing them to switch to a different day, since they're displayed on the visual schedule. Therefore we set useEffectiveDatesEvenWhenItemsHaveTimes to false.
_events = TasksOrEventsOnDay.Get(account, semesterItems.Items, date, today: null, activeOnly: false, useEffectiveDateEvenWhenItemsHaveTimes: false);
_events.CollectionChanged += new WeakEventHandler <NotifyCollectionChangedEventArgs>(Events_CollectionChanged).Handler;
}
else
{
_events = new MyObservableList <BaseViewItemMegaItem>();
}
if (includeTasksAndEventsAndHolidays)
{
_holidays = HolidaysOnDay.Create(semesterItems.Items, date);
_holidays.CollectionChanged += new WeakEventHandler <NotifyCollectionChangedEventArgs>(_holidays_CollectionChanged).Handler;
}
else
{
_holidays = new MyObservableList <ViewItemHoliday>();
}
Initialize(schedules, _events, _holidays);
}
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);
}
private void Initialize(SchedulesOnDay schedules, MyObservableList <BaseViewItemHomeworkExamGrade> events, MyObservableList <ViewItemHoliday> holidays)
{
List <ScheduleItem> schedulesCopied;
if (schedules == null)
{
// Different semester case, so no schedules
schedulesCopied = new List <ScheduleItem>();
}
else
{
schedulesCopied = schedules.Where(i => i.EndTime.TimeOfDay > i.StartTime.TimeOfDay).Select(i => new ScheduleItem(this, i)).ToList();
}
List <EventItem> eventsCopied = new List <EventItem>();
List <BaseViewItemHomeworkExam> allDayEvents = new List <ViewItems.BaseViewItems.BaseViewItemHomeworkExam>();
foreach (var e in events.OfType <BaseViewItemHomeworkExam>())
{
if (e.IsDuringDay())
{
eventsCopied.Add(new EventItem(this, e));
}
else
{
allDayEvents.Add(e);
}
}
AllDayItems = allDayEvents;
Holidays = holidays.ToList();
HasHolidays = Holidays.Any();
_cachedHolidayAndAllDayItems = null;
var schedulesFinal = schedulesCopied.ToArray();
var eventsFinal = eventsCopied.ToList();
ScheduleItems = schedulesFinal;
// Handle schedule collisions
while (schedulesCopied.Count > 0)
{
var collidingSchedules = new List <ScheduleItem>()
{
schedulesCopied[0]
};
schedulesCopied.RemoveAt(0);
AddColliding(schedulesCopied, collidingSchedules);
if (collidingSchedules.Count > 1)
{
for (int i = 0; i < collidingSchedules.Count; i++)
{
collidingSchedules[i].Column = i;
collidingSchedules[i].NumOfColumns = collidingSchedules.Count;
}
}
}
// Handle event collisions
while (eventsCopied.Count > 0)
{
var collidingEvents = new List <EventItem>()
{
eventsCopied[0]
};
eventsCopied.RemoveAt(0);
AddColliding(eventsCopied, collidingEvents);
List <ScheduleItem> scheduleCollisionsWithEvent = new List <ScheduleItem>();
// If there's a colliding schedule, we collapse
bool doesCollideWithSchedule = false;
foreach (var e in collidingEvents)
{
foreach (var s in schedulesFinal)
{
if (s.CollidesWith(e))
{
doesCollideWithSchedule = true;
scheduleCollisionsWithEvent.Add(s);
}
}
}
if (doesCollideWithSchedule)
{
var firstEvent = collidingEvents[0];
firstEvent.IsCollapsedMode = true;
foreach (var e in collidingEvents.Skip(1))
{
firstEvent.AddAdditionalItem(e);
eventsFinal.Remove(e);
}
foreach (var s in scheduleCollisionsWithEvent)
{
if (firstEvent.AdditionalItems != null)
{
s.LeftOffset = _spacingWithAdditionalItems;
}
else
{
// LeftOffset might have been previously assigned, so make sure we're assigning higher value
if (_spacingWhenNoAdditionalItems > s.LeftOffset)
{
s.LeftOffset = _spacingWhenNoAdditionalItems;
}
}
}
}
else if (collidingEvents.Count == 1)
{
// Nothing
}
else if (collidingEvents.Count == 2)
{
// Exactly two items
collidingEvents[0].NumOfColumns = 2;
collidingEvents[1].NumOfColumns = 2;
collidingEvents[1].Column = 1;
}
else
{
// More than two items
EventItem prev = null;
bool isLeftSide = true;
while (collidingEvents.Count > 0)
{
var curr = collidingEvents[0];
curr.NumOfColumns = 2;
collidingEvents.RemoveAt(0);
if (prev != null)
{
if (!isLeftSide)
{
curr.Column = 1;
}
// Find out if any items collide with the prev item, and therefore need to become mini-items with the curr item
while (collidingEvents.Count > 0)
{
var next = collidingEvents[0];
if (prev.CollidesWith(next))
{
collidingEvents.RemoveAt(0);
curr.AddAdditionalItem(next);
eventsFinal.Remove(next);
}
else
{
break;
}
}
}
// Prev becomes curr
prev = curr;
// And we switch the side
isLeftSide = !isLeftSide;
}
}
}
EventItems = eventsFinal.ToArray();
if (ScheduleItems.Any() || EventItems.Any())
{
var min = ScheduleItems.OfType <BaseScheduleItem>().Concat(EventItems.OfType <BaseScheduleItem>()).Min(i => i.StartTime);
if (min.Minutes == 59 && min.Hours != 23)
{
// So that a task that's due before class (1 min before) doesn't cause an entire hour to be rendered, we adjust 0:59 to the next hour
// Note that we exclude incrementing 23:59 since that would make it the next day
min = min.Add(TimeSpan.FromMinutes(1));
}
StartTime = new TimeSpan(min.Hours, 0, 0);
EndTime = new TimeSpan(ScheduleItems.OfType <BaseScheduleItem>().Concat(EventItems.OfType <BaseScheduleItem>()).Max(i => i.EndTime).Hours, 0, 0);
if (EndTime < StartTime)
{
EndTime = StartTime.Add(TimeSpan.FromHours(1));
}
}
CalculateOffsets();
}
private SchedulesOnDay(SchedulesOnDay other)
{
base.AddRange(other);
}