protected void SetButtonSelected(CalendarButton button, SpecialDate special, bool first = false, bool last = false)
{
Device.BeginInvokeOnMainThread(() =>
{
button.BackgroundPattern = special != null ? special.BackgroundPattern : null;
if (first)
{
button.BackgroundImage = special != null ? special.BackgroundImage : FirstSelectedBackgroundImage != null ? FirstSelectedBackgroundImage : null;
}
else if (last)
{
button.BackgroundImage = special != null ? special.BackgroundImage : LastSelectedBackgroundImage != null ? LastSelectedBackgroundImage : null;
}
else
{
if (SelectedDates.Count == 1)
{
button.BackgroundImage = special != null ? special.BackgroundImage : SelectedBackgroundImage != null ? SelectedBackgroundImage : null;
}
else
{
button.BackgroundImage = special != null ? special.BackgroundImage : SelectedBackgroundImage != null ? SelectedRangeBackgroundImage : null;
}
}
var defaultBackgroundColor = button.IsOutOfMonth ? DatesBackgroundColorOutsideMonth : DatesBackgroundColor;
var defaultTextColor = button.IsOutOfMonth ? DatesTextColorOutsideMonth : DatesTextColor;
var defaultFontAttributes = button.IsOutOfMonth ? DatesFontAttributesOutsideMonth : DatesFontAttributes;
var defaultFontFamily = button.IsOutOfMonth ? DatesFontFamilyOutsideMonth : DatesFontFamily;
button.IsEnabled = true;
button.IsSelected = true;
button.VerticalOptions = LayoutOptions.FillAndExpand;
button.HorizontalOptions = LayoutOptions.FillAndExpand;
button.FontSize = SelectedFontSize;
button.BorderWidth = SelectedBorderWidth;
button.BorderColor = SelectedBorderColor;
button.BackgroundColor = SelectedBackgroundColor != Color.Default ? SelectedBackgroundColor : (special != null && special.BackgroundColor.HasValue ? special.BackgroundColor.Value : defaultBackgroundColor);
button.TextColor = SelectedTextColor != Color.Default ? SelectedTextColor : (special != null && special.TextColor.HasValue ? special.TextColor.Value : defaultTextColor);
button.FontAttributes = SelectedFontAttributes != FontAttributes.None ? SelectedFontAttributes : (special != null && special.FontAttributes.HasValue ? special.FontAttributes.Value : defaultFontAttributes);
button.FontFamily = !string.IsNullOrEmpty(SelectedFontFamily) ? SelectedFontFamily : (special != null && !string.IsNullOrEmpty(special.FontFamily) ? special.FontFamily : defaultFontFamily);
});
}
protected void SetButtonSpecial(CalendarButton button, SpecialDate special)
{
if (button != null)
{
Device.BeginInvokeOnMainThread(() =>
{
button.BackgroundPattern = special.BackgroundPattern;
button.BackgroundImage = special.BackgroundImage;
if (special.FontSize.HasValue)
{
button.FontSize = special.FontSize.Value;
}
if (special.BorderWidth.HasValue)
{
button.BorderWidth = special.BorderWidth.Value;
}
if (special.BorderColor.HasValue)
{
button.BorderColor = special.BorderColor.Value;
}
if (special.BackgroundColor.HasValue)
{
button.BackgroundColor = special.BackgroundColor.Value;
}
if (special.TextColor.HasValue)
{
button.TextColor = special.TextColor.Value;
}
if (special.FontAttributes.HasValue)
{
button.FontAttributes = special.FontAttributes.Value;
}
if (!string.IsNullOrEmpty(special.FontFamily))
{
button.FontFamily = special.FontFamily;
}
button.IsEnabled = special.Selectable;
});
}
}
protected void ChangeCalendar(CalandarChanges changes)
{
Device.BeginInvokeOnMainThread(() =>
{
Content = null;
if (changes.HasFlag(CalandarChanges.StartDate))
{
TitleLabel.Text = StartDate.ToString(TitleLabelFormat);
if (TitleLabels != null)
{
var tls = StartDate.AddMonths(1);
foreach (var tl in TitleLabels)
{
(tl as Label).Text = tls.ToString(TitleLabelFormat);
tls = tls.AddMonths(1);
}
}
}
var start = CalendarStartDate(StartDate).Date;
var beginOfMonth = false;
var endOfMonth = false;
for (int i = 0; i < buttons.Count; i++)
{
endOfMonth |= beginOfMonth && start.Day == 1;
beginOfMonth |= start.Day == 1;
if (i < dayLabels.Count && WeekdaysShow && changes.HasFlag(CalandarChanges.StartDay))
{
var day = start.ToString(WeekdaysFormat);
string showDay = char.ToUpper(day.First()) + day.Substring(1).ToLower();
dayLabels[i].Text = showDay;
}
ChangeWeekNumbers(start, i);
if (changes.HasFlag(CalandarChanges.All))
{
buttons[i].Text = string.Format("{0}", start.Day);
}
else
{
buttons[i].TextWithoutMeasure = string.Format("{0}", start.Day);
}
buttons[i].Date = start;
buttons[i].IsOutOfMonth = !(beginOfMonth && !endOfMonth);
buttons[i].IsEnabled = ShowNumOfMonths == 1 || !buttons[i].IsOutOfMonth;
SpecialDate sd = null;
if (SpecialDates != null)
{
sd = SpecialDates.FirstOrDefault(s => s.Date.Date == start.Date);
}
SetButtonNormal(buttons[i]);
if ((MinDate.HasValue && start.Date < MinDate) || (MaxDate.HasValue && start.Date > MaxDate) || (DisableAllDates && sd == null))
{
SetButtonDisabled(buttons[i]);
}
else if (buttons[i].IsEnabled && (SelectedDates?.Select(d => d.Date)?.Contains(start.Date) ?? false))
{
SetButtonSelected(buttons[i], sd);
}
else if (sd != null)
{
SetButtonSpecial(buttons[i], sd);
}
start = start.AddDays(1);
if (i != 0 && (i + 1) % 42 == 0)
{
beginOfMonth = false;
endOfMonth = false;
start = CalendarStartDate(start);
}
}
if (DisableDatesLimitToMaxMinRange)
{
TitleLeftArrow.IsEnabled = !(MinDate.HasValue && CalendarStartDate(StartDate).Date < MinDate);
TitleRightArrow.IsEnabled = !(MaxDate.HasValue && start > MaxDate);
}
Content = MainView;
});
}