private void UpdatePresenters(DateTime oldCurrentDate, DateTime newCurrentDate)
{
if (this.currentCellsToUpdate == null)
{
this.currentCellsToUpdate = new List <CalendarCellModel>();
}
else
{
this.currentCellsToUpdate.Clear();
}
if (oldCurrentDate != DateTime.MinValue && oldCurrentDate != newCurrentDate)
{
oldCurrentDate = CalendarMathHelper.GetCellDateForViewLevel(oldCurrentDate, this.Owner.DisplayMode);
CalendarCellModel previousCell = this.Owner.GetCellByDate(oldCurrentDate);
if (previousCell != null)
{
previousCell.IsCurrent = false;
this.currentCellsToUpdate.Add(previousCell);
}
}
if (newCurrentDate != DateTime.MinValue)
{
newCurrentDate = CalendarMathHelper.GetCellDateForViewLevel(newCurrentDate, this.Owner.DisplayMode);
if (newCurrentDate == oldCurrentDate && this.currentCellsToUpdate.Count > 0)
{
return;
}
CalendarCellModel currentCell = this.Owner.GetCellByDate(newCurrentDate);
if (currentCell != null)
{
currentCell.IsCurrent = true;
this.currentCellsToUpdate.Add(currentCell);
}
}
this.Owner.UpdatePresenters(this.currentCellsToUpdate);
}