// handler: OnCalendarButtonPressed
internal void OnCalendarButtonPressed(MonthYearButton b, bool switchDisplayMode) {
if (!(b.DataContext is DateTime))
return;
var requestedDate = (DateTime)b.DataContext;
var result = new DateTime?();
var calendarMode = CalendarMode.Month;
switch (DisplayMode) {
case CalendarMode.Year:
result = Engine.SetYearMonth(DisplayDate, requestedDate);
calendarMode = CalendarMode.Month;
break;
case CalendarMode.Decade:
result = Engine.SetYear(DisplayDate, requestedDate);
calendarMode = CalendarMode.Year;
break;
}
if (!result.HasValue)
return;
DisplayDate = result.Value;
if (!switchDisplayMode)
return;
SetCurrentValue(DisplayModeProperty, calendarMode);
FocusDate(DisplayMode == CalendarMode.Month ? CurrentDate : DisplayDate);
}
private void PopulateDecadeViewGrid() {
if (_decadeView == null)
return;
for (var row = 0; row < 3; ++row) {
for (var column = 0; column < 4; ++column) {
var cb = new MonthYearButton { Owner = Owner };
cb.SetValue(Grid.RowProperty, row);
cb.SetValue(Grid.ColumnProperty, column);
cb.SetBinding(StyleProperty, GetOwnerBinding(Calendar.MonthYearButtonStyleProperty));
cb.AddHandler(MouseLeftButtonDownEvent, new MouseButtonEventHandler(Year_MouseLeftButtonDown), true);
cb.AddHandler(MouseLeftButtonUpEvent, new MouseButtonEventHandler(MonthOrYear_MouseLeftButtonUp), true);
cb.AddHandler(MouseEnterEvent, new MouseEventHandler(Year_MouseEnter), true);
cb.AddHandler(PreviewKeyDownEvent, new RoutedEventHandler(DayOrMonthOrYear_PreviewKeyDown), true);
cb.Click += MonthOrYear_Clicked;
_decadeView.Children.Add(cb);
}
}
}