private void DrawEvents()
{
// this method can be called when Events is not binded yet. So check that case and return
if (Events == null)
{
return;
}
// when Events is binded, check if it is collection of ICalendarEvent (events must have DateFrom and DateTo)
if (Events is IEnumerable <ICalendarEvent> events)
{
// add colors of events to array, to pick up them using number
SolidColorBrush[] colors = { Color0, Color1, Color2 };
// index to array of colors
int accentColor = 0;
// loop all events
foreach (var e in events.OrderBy(e => e.DateFrom))
{
if (!e.DateFrom.HasValue || !e.DateTo.HasValue)
{
continue;
}
// number of row in day, in which event should be displayed
int eventRow = 0;
var dateFrom = (DateTime)e.DateFrom;
var dateTo = (DateTime)e.DateTo;
// loop all days of current event
for (DateTime date = dateFrom; date <= dateTo; date = date.AddDays(1))
{
// get DayOfWeek for current day of current event
CalendarDay day = DaysInCurrentMonth.Where(d => d.Date.Date == date.Date).FirstOrDefault();
// day is in another mont, so skip it
if (day == null)
{
continue;
}
// if the DayOfWeek is Monday, event shloud be displayed on first row
if (day.Date.DayOfWeek == DayOfWeek.Monday)
{
eventRow = 0;
}
// but if there are some events before, event won't be on the first row, but after previous events
if (day.Events.Children.Count > eventRow)
{
eventRow = Grid.GetRow(day.Events.Children[day.Events.Children.Count - 1]) + 1;
}
// get color for event
int accentColorIndex = accentColor % colors.Count();
CalendarEventView calendarEventView = new CalendarEventView(colors[accentColorIndex], this);
calendarEventView.DataContext = e;
Grid.SetRow(calendarEventView, eventRow);
day.Events.Children.Add(calendarEventView);
}
accentColor++;
}
}
else
{
throw new ArgumentException("Events must be IEnumerable<ICalendarEvent>");
}
}
public void DrawDays()
{
DaysGrid.Children.Clear();
DaysInCurrentMonth.Clear();
DateTime firstDayOfMonth = new DateTime(CurrentDate.Year, CurrentDate.Month, 1);
DateTime lastDayOfMonth = firstDayOfMonth.AddMonths(1).AddDays(-1);
for (DateTime date = firstDayOfMonth; date.Date <= lastDayOfMonth; date = date.AddDays(1))
{
CalendarDay newDay = new CalendarDay();
newDay.BorderThickness = new Thickness((double)GridBorderThickness / 2); // /2 because neighbor day has border too, so two half borders next to each other will create final border
newDay.BorderBrush = GridBrush;
newDay.Date = date;
DaysInCurrentMonth.Add(newDay);
}
int row = 0;
int column = 0;
for (int i = 0; i < DaysInCurrentMonth.Count; i++)
{
switch (DaysInCurrentMonth[i].Date.DayOfWeek)
{
case DayOfWeek.Monday:
column = 0;
break;
case DayOfWeek.Tuesday:
column = 1;
break;
case DayOfWeek.Wednesday:
column = 2;
break;
case DayOfWeek.Thursday:
column = 3;
break;
case DayOfWeek.Friday:
column = 4;
break;
case DayOfWeek.Saturday:
column = 5;
break;
case DayOfWeek.Sunday:
column = 6;
break;
}
Grid.SetRow(DaysInCurrentMonth[i], row);
Grid.SetColumn(DaysInCurrentMonth[i], column);
DaysGrid.Children.Add(DaysInCurrentMonth[i]);
if (column == 6)
{
row++;
}
}
DrawTopBorder();
DrawBottomBorder();
DrawRightBorder();
DrawLeftBorder();
// set some background today
CalendarDay today = DaysInCurrentMonth.Where(d => d.Date == DateTime.Today).FirstOrDefault();
if (today != null)
{
today.DateTextBlock.Background = Color0;
}
DrawEvents();
}
