/// <summary>
/// Draws all weeks of the specified month.
/// </summary>
private void DrawWeeks(MonthInfo month, ref float topOffset)
{
SizeF weekRowSize = CalendarData.GetDefaultWeekRowSize(MonthAreaSize);
SizeF dayCellSize = CalendarData.GetDayCellSize(weekRowSize);
// do the first pass to collect day info objects
List <DayInfo> days = CollectDays(month, dayCellSize, ref topOffset);
// sort the days according to its day kind
days.Sort(new DayInfo.Comparer());
// render sorted days
RenderDays(days);
// render appointments on the top
RenderAppointments(month, days, dayCellSize);
}