private void UpdateMonthSize()
{
//One row of day names plus 31 possible numbers
string[] strs = new string[7 + 31];
int maxWidth = 0;
int maxHeight = 0;
for (int i = 0; i < 7; i++)
{
strs[i] = ViewStart.AddDays(i).ToString(DayNamesFormat).Substring(0, DayNamesLength);
}
for (int i = 7; i < strs.Length; i++)
{
strs[i] = (i - 6).ToString();
}
Font f = new Font(Font, FontStyle.Bold);
for (int i = 0; i < strs.Length; i++)
{
Size s = TextRenderer.MeasureText(strs[i], f);
maxWidth = Math.Max(s.Width, maxWidth);
maxHeight = Math.Max(s.Height, maxHeight);
}
maxWidth += ItemPadding.Horizontal;
maxHeight += ItemPadding.Vertical;
_daySize = new Size(maxWidth, maxHeight);
_monthSize = new Size(maxWidth * 7, maxHeight * 7 + maxHeight * (DayNamesVisible ? 1 : 0));
}
/// <summary>
/// Updates the
/// </summary>
private void UpdateDaysAndWeeks()
{
TimeSpan span = (new DateTime(ViewEnd.Year, ViewEnd.Month, ViewEnd.Day, 23, 59, 59)).Subtract(ViewStart.Date);
int preDays = 0;
span = span.Add(new TimeSpan(0, 0, 0, 1, 0));
if (span.Days < 1 || span.Days > MaximumViewDays)
{
throw new Exception("Days between ViewStart and ViewEnd should be between 1 and MaximumViewDays");
}
if (span.Days > MaximumFullDays)
{
SetDaysMode(CalendarDaysMode.Short);
preDays = (new int[] { 0, 1, 2, 3, 4, 5, 6 })[(int)ViewStart.DayOfWeek] - (int)FirstDayOfWeek;
span = span.Add(new TimeSpan(preDays, 0, 0, 0));
while (span.Days % 7 != 0)
{
span = span.Add(new TimeSpan(1, 0, 0, 0));
}
}
else
{
SetDaysMode(CalendarDaysMode.Expanded);
}
_days = new CalendarDay[span.Days];
for (int i = 0; i < Days.Length; i++)
{
Days[i] = new CalendarDay(this, ViewStart.AddDays(-preDays + i), i);
}
//Weeks
if (DaysMode == CalendarDaysMode.Short)
{
List <CalendarWeek> weeks = new List <CalendarWeek>();
for (int i = 0; i < Days.Length; i++)
{
if (Days[i].Date.DayOfWeek == FirstDayOfWeek)
{
weeks.Add(new CalendarWeek(this, Days[i].Date));
}
}
_weeks = weeks.ToArray();
}
else
{
_weeks = new CalendarWeek[] { };
}
UpdateHighlights();
}
/// <summary>
/// Scrolls the calendar using the specified delta
/// </summary>
/// <param name="delta"></param>
private void ScrollCalendar(int delta)
{
if (delta < 0)
{
SetViewRange(ViewStart.AddDays(7), ViewEnd.AddDays(7));
}
else
{
SetViewRange(ViewStart.AddDays(-7), ViewEnd.AddDays(-7));
}
}