/// <summary>
/// Initializes a new instance of the <see cref="MonthCalendarMonth"/> class.
/// </summary>
/// <param name="enhancedMonthCal">
/// The <see cref="Calendar"/> which hosts the <see cref="MonthCalendarMonth"/> instance.
/// </param>
/// <param name="date">
/// The date that represents the month and year which is displayed in this instance.
/// </param>
public MonthCalendarMonth(EnhancedMonthCalendar enhancedMonthCal, DateTime date)
{
this.Calendar = enhancedMonthCal;
this.Date = date;
this._location = new Point(0, 0);
MonthCalendarDate dt =
new MonthCalendarDate(enhancedMonthCal.CultureCalendar, date).FirstOfMonth.GetFirstDayInWeek(enhancedMonthCal.FormatProvider);
List<MonthCalendarDay> dayList = new List<MonthCalendarDay>();
List<MonthCalendarWeek> weekList = new List<MonthCalendarWeek>();
int dayAdjust = 0;
while (dt.AddDays(dayAdjust).DayOfWeek != enhancedMonthCal.FormatProvider.FirstDayOfWeek)
{
dayAdjust++;
}
int d = dayAdjust != 0 ? 8 - dayAdjust : 0;
for (int i = dayAdjust; i < 42 + dayAdjust; i++, dt = dt.AddDays(1))
{
MonthCalendarDay day = new MonthCalendarDay(this, dt.Date);
dayList.Add(day);
if (day.Visible)
{
if (this._firstVisibleDate == DateTime.MinValue)
{
this._firstVisibleDate = dt.Date;
}
if (!day.TrailingDate)
{
this._lastVisibleDate = dt.Date;
}
}
if (i == dayAdjust || ((i - d) % 7) == 0)
{
DateTime weekEnd = dt.GetEndDateOfWeek(enhancedMonthCal.FormatProvider).Date;
int weekNumEnd = DateMethods.GetWeekOfYear(enhancedMonthCal.Culture, enhancedMonthCal.CultureCalendar, weekEnd);
weekList.Add(new MonthCalendarWeek(this, weekNumEnd, dt.Date, weekEnd));
}
if (dt.Date == enhancedMonthCal.CultureCalendar.MaxSupportedDateTime.Date)
{
break;
}
}
this.Days = dayList.ToArray();
this.Weeks = weekList.ToArray();
}
/// <summary>
/// Handles clicks in the year menu.
/// </summary>
/// <param name="sender">
/// The sender.
/// </param>
/// <param name="e">
/// The event data.
/// </param>
private void YearClick(object sender, EventArgs e)
{
DateTime currentMonthYear = (DateTime)this.yearMenu.Tag;
int yearClicked = (int)((ToolStripMenuItem)sender).Tag;
MonthCalendarDate dt = new MonthCalendarDate(this.CultureCalendar, currentMonthYear);
if (dt.Year != yearClicked)
{
MonthCalendarDate newStartDate =
new MonthCalendarDate(this.CultureCalendar, new DateTime(yearClicked, dt.Month, 1, this.CultureCalendar)).AddMonths(
-this.GetIndex(currentMonthYear));
if (this.SetStartDate(newStartDate.Date))
{
this.UpdateMonths();
this.RaiseDateChanged();
this.Focus();
this.Refresh();
}
}
}
/// <summary>
/// Sets the start date.
/// </summary>
/// <param name="start">
/// The start date.
/// </param>
/// <returns>
/// true if <paramref name="start"/> is valid; false otherwise.
/// </returns>
private bool SetStartDate(DateTime start)
{
if (start < DateTime.MinValue.Date || start > DateTime.MaxValue.Date)
{
return false;
}
DayOfWeek firstDayOfWeek = this._formatProvider.FirstDayOfWeek;
MonthCalendarDate dt = new MonthCalendarDate(this.CultureCalendar, this._maxDate);
if (start > this._maxDate)
{
start = dt.AddMonths(1 - this.Months.Length).FirstOfMonth.Date;
}
if (start < this._minDate)
{
start = this._minDate;
}
dt = new MonthCalendarDate(this.CultureCalendar, start);
int length = this.Months != null ? this.Months.Length - 1 : 0;
while (dt.Date > this._minDate && dt.Day != 1)
{
dt = dt.AddDays(-1);
}
MonthCalendarDate endDate = dt.AddMonths(length);
MonthCalendarDate endDateDay = endDate.AddDays(endDate.DaysInMonth - 1 - (endDate.Day - 1));
if (endDate.Date >= this._maxDate || endDateDay.Date >= this._maxDate)
{
dt = new MonthCalendarDate(this.CultureCalendar, this._maxDate).AddMonths(-length).FirstOfMonth;
}
this.viewStart = dt.Date;
while (dt.Date > this.CultureCalendar.MinSupportedDateTime.Date && dt.DayOfWeek != firstDayOfWeek)
{
dt = dt.AddDays(-1);
}
this.realStart = dt.Date;
return true;
}
/// <summary>
/// Sets the selection range for the specified <see cref="MonthCalendarSelectionMode"/>.
/// </summary>
/// <param name="selMode">
/// The <see cref="MonthCalendarSelectionMode"/> value to set the selection range for.
/// </param>
private void SetSelectionRange(MonthCalendarSelectionMode selMode)
{
switch (selMode)
{
case MonthCalendarSelectionMode.Day:
{
this.selectionEnd = this.selectionStart;
break;
}
case MonthCalendarSelectionMode.WorkWeek:
case MonthCalendarSelectionMode.FullWeek:
{
MonthCalendarDate dt = new MonthCalendarDate(this.CultureCalendar, this.selectionStart).GetFirstDayInWeek(
this._formatProvider);
this.selectionStart = dt.Date;
this.selectionEnd = dt.AddDays(6).Date;
break;
}
case MonthCalendarSelectionMode.Month:
{
MonthCalendarDate dt = new MonthCalendarDate(this.CultureCalendar, this.selectionStart).FirstOfMonth;
this.selectionStart = dt.Date;
this.selectionEnd = dt.AddMonths(1).AddDays(-1).Date;
break;
}
}
}
/// <summary>
/// Handles clicks in the month menu.
/// </summary>
/// <param name="sender">
/// The sender.
/// </param>
/// <param name="e">
/// The event data.
/// </param>
private void MonthClick(object sender, EventArgs e)
{
MonthCalendarDate currentMonthYear = new MonthCalendarDate(this.CultureCalendar, (DateTime)this.monthMenu.Tag);
int monthClicked = (int)((ToolStripMenuItem)sender).Tag;
if (currentMonthYear.Month != monthClicked)
{
MonthCalendarDate dt = new MonthCalendarDate(
this.CultureCalendar,
new DateTime(currentMonthYear.Year, monthClicked, 1, this.CultureCalendar));
DateTime newStartDate = dt.AddMonths(-this.GetIndex(currentMonthYear.Date)).Date;
if (this.SetStartDate(newStartDate))
{
this.UpdateMonths();
this.RaiseDateChanged();
this.Focus();
this.Refresh();
}
}
}
/// <summary>
/// Checks if the <paramref name="newSelectionDate"/> is within bounds of the <paramref name="baseDate"/>
/// and the <see cref="MaxSelectionCount"/>.
/// </summary>
/// <param name="baseDate">
/// The base date from where to check.
/// </param>
/// <param name="newSelectionDate">
/// The new selection date.
/// </param>
/// <returns>
/// A valid new selection date if valid parameters, otherwise <c>DateTime.MinValue</c>.
/// </returns>
private DateTime GetSelectionDate(DateTime baseDate, DateTime newSelectionDate)
{
if (this.maxSelectionCount == 0 || baseDate == DateTime.MinValue)
{
return newSelectionDate;
}
if (baseDate >= this.CultureCalendar.MinSupportedDateTime && newSelectionDate >= this.CultureCalendar.MinSupportedDateTime
&& baseDate <= this.CultureCalendar.MaxSupportedDateTime && newSelectionDate <= this.CultureCalendar.MaxSupportedDateTime)
{
int days = (baseDate - newSelectionDate).Days;
if (Math.Abs(days) >= this.maxSelectionCount)
{
newSelectionDate =
new MonthCalendarDate(this.CultureCalendar, baseDate).AddDays(
days < 0 ? this.maxSelectionCount - 1 : 1 - this.maxSelectionCount).Date;
}
return newSelectionDate;
}
return DateTime.MinValue;
}
/// <summary>
/// Gets the new date for the specified scroll direction.
/// </summary>
/// <param name="up">
/// true for scrolling upwards, false otherwise.
/// </param>
/// <returns>
/// The new start date.
/// </returns>
private DateTime GetNewScrollDate(bool up)
{
if ((this._lastVisibleDate == this._maxDate && !up) || (this.Months[0].FirstVisibleDate == this._minDate && up))
{
return this.viewStart;
}
MonthCalendarDate dt = new MonthCalendarDate(this.CultureCalendar, this.viewStart);
int monthsToAdd = (this.scrollChange == 0
? Math.Max((this.calendarDimensions.Width * this.calendarDimensions.Height) - 1, 1)
: this.scrollChange) * (up ? -1 : 1);
int length = this.Months == null ? Math.Max(1, this.calendarDimensions.Width * this.calendarDimensions.Height) : this.Months.Length;
MonthCalendarDate newStartMonthDate = dt.AddMonths(monthsToAdd);
MonthCalendarDate lastMonthDate = newStartMonthDate.AddMonths(length - 1);
MonthCalendarDate lastMonthEndDate = lastMonthDate.AddDays(lastMonthDate.DaysInMonth - 1 - lastMonthDate.Day);
if (newStartMonthDate.Date < this._minDate)
{
newStartMonthDate = new MonthCalendarDate(this.CultureCalendar, this._minDate);
}
else if (lastMonthEndDate.Date >= this._maxDate || lastMonthDate.Date >= this._maxDate)
{
MonthCalendarDate maxdt = new MonthCalendarDate(this.CultureCalendar, this._maxDate).FirstOfMonth;
newStartMonthDate = maxdt.AddMonths(1 - length);
}
return newStartMonthDate.Date;
}
/// <summary>
/// Calculates the various sizes of a single month view and the global size of the control.
/// </summary>
/// <param name="changeDimension">
/// The change Dimension.
/// </param>
private void CalculateSize(bool changeDimension)
{
// if already calculating - return
if (this._inUpdate)
{
return;
}
this._inUpdate = true;
using (Graphics g = this.CreateGraphics())
{
// get sizes for different elements of the calendar
SizeF daySize = g.MeasureString("30", this.Font);
SizeF weekNumSize = g.MeasureString("59", this.Font);
MonthCalendarDate date = new MonthCalendarDate(this.CultureCalendar, this.viewStart);
SizeF monthNameSize = g.MeasureString(this._formatProvider.GetMonthName(date.Year, date.Month), this.headerFont);
SizeF yearStringSize = g.MeasureString(this.viewStart.ToString("yyyy"), this.headerFont);
SizeF footerStringSize = g.MeasureString(this.viewStart.ToShortDateString(), this.footerFont);
// calculate the header height
this._headerHeight = Math.Max((int)Math.Max(monthNameSize.Height + 3, yearStringSize.Height) + 1, 15);
// calculate the width of a single day
this._dayWidth = Math.Max(12, (int)daySize.Width + 1) + 5;
// calculate the height of a single day
this._dayHeight = Math.Max(Math.Max(12, (int)weekNumSize.Height + 1), (int)daySize.Height + 1) + 2;
// calculate the height of the footer
this._footerHeight = Math.Max(20, (int)footerStringSize.Height + 2);
// calculate the width of the week number header
this._weekNumberWidth = this.showWeekHeader ? Math.Max(12, (int)weekNumSize.Width + 1) + 2 : 0;
// set minimal height of the day name header
this._dayNameHeight = this.dayHeaderFont.Height + 10;
// loop through all day names
foreach (string str in DateMethods.GetDayNames(this._formatProvider, this.useShortestDayNames ? 2 : 1))
{
// get the size of the name
SizeF dayNameSize = g.MeasureString(str, this.dayHeaderFont);
// adjust the width of the day and the day name header height
this._dayWidth = Math.Max(this._dayWidth, (int)dayNameSize.Width + 1);
this._dayNameHeight = Math.Max(this._dayNameHeight, (int)dayNameSize.Height + 1);
}
// calculate the width and height of a MonthCalendarMonth element
this._monthWidth = this._weekNumberWidth + (this._dayWidth * 7) + 2;
this._monthHeight = this._headerHeight + this._dayNameHeight + (this._dayHeight * 6) + 2;
if (changeDimension)
{
// calculate the dimension of the control
int calWidthDim = Math.Max(1, this.Width / this._monthWidth);
int calHeightDim = Math.Max(1, this.Height / this._monthHeight);
// set the dimensions
this.CalendarDimensions = new Size(calWidthDim, calHeightDim);
}
// set the width and height of the control
this.Height = (this._monthHeight * this.calendarDimensions.Height) + (this.showFooter ? this._footerHeight : 0) + this.Padding.Top
+ this.Padding.Bottom;
this.Width = this._monthWidth * this.calendarDimensions.Width + this.Padding.Top + this.Padding.Bottom;
// calculate the footer bounds
this._footerRect = new Rectangle(1, this.Height - this._footerHeight - 1, this.Width - 2, this._footerHeight);
// update the months
this.UpdateMonths();
}
this._inUpdate = false;
this.Refresh();
}
/// <summary>
/// Processes a dialog key.
/// </summary>
/// <param name="keyData">
/// One of the <see cref="Keys"/> value that represents the key to process.
/// </param>
/// <returns>
/// true if the key was processed by the control; otherwise, false.
/// </returns>
protected override bool ProcessDialogKey(Keys keyData)
{
if (this.daySelectionMode != MonthCalendarSelectionMode.Day)
{
return base.ProcessDialogKey(keyData);
}
MonthCalendarDate dt = new MonthCalendarDate(this.cultureCalendar, this.selectionStart);
bool retValue = false;
if (keyData == Keys.Left)
{
this.selectionStart = dt.AddDays(-1).Date;
retValue = true;
}
else if (keyData == Keys.Right)
{
this.selectionStart = dt.AddDays(1).Date;
retValue = true;
}
else if (keyData == Keys.Up)
{
this.selectionStart = dt.AddDays(-7).Date;
retValue = true;
}
else if (keyData == Keys.Down)
{
this.selectionStart = dt.AddDays(7).Date;
retValue = true;
}
if (retValue)
{
if (this.selectionStart < this._minDate)
{
this.selectionStart = this._minDate;
}
else if (this.selectionStart > this._maxDate)
{
this.selectionStart = this._maxDate;
}
this.SetSelectionRange(this.daySelectionMode);
this.EnsureSeletedDateIsVisible();
this.RaiseInternalDateSelected();
this.Invalidate();
return true;
}
return base.ProcessDialogKey(keyData);
}
/// <summary>Updates the shown months.</summary>
public void UpdateMonths()
{
int x = this.Padding.Left, y = this.Padding.Top, index = 0;
int calWidthDim = this.calendarDimensions.Width;
int calHeightDim = this.calendarDimensions.Height;
List<MonthCalendarMonth> monthList = new List<MonthCalendarMonth>();
MonthCalendarDate dt = new MonthCalendarDate(this.CultureCalendar, this.viewStart);
if (dt.GetEndDateOfWeek(this._formatProvider).Month != dt.Month)
{
dt = dt.GetEndDateOfWeek(this._formatProvider).FirstOfMonth;
}
if (this.UseRTL)
{
x = this._monthWidth * (calWidthDim - 1);
for (int i = 0; i < calHeightDim; i++)
{
for (int j = calWidthDim - 1; j >= 0; j--)
{
if (dt.Date >= this._maxDate)
{
break;
}
monthList.Add(new MonthCalendarMonth(this, dt.Date) { Location = new Point(x, y), Index = index++ });
x -= this._monthWidth;
dt = dt.AddMonths(1);
}
x = this._monthWidth * (calWidthDim - 1);
y += this._monthHeight;
}
}
else
{
for (int i = 0; i < calHeightDim; i++)
{
for (int j = 0; j < calWidthDim; j++)
{
if (dt.Date >= this._maxDate)
{
break;
}
monthList.Add(new MonthCalendarMonth(this, dt.Date) { Location = new Point(x, y), Index = index++ });
x += this._monthWidth;
dt = dt.AddMonths(1);
}
x = 0;
y += this._monthHeight;
}
}
this._lastVisibleDate = monthList[monthList.Count - 1].LastVisibleDate;
this.Months = monthList.ToArray();
}
/// <summary>
/// Calculates the proportions of this instance of <see cref="MonthCalendarMonth"/>.
/// </summary>
/// <param name="loc">
/// The top left corner of the month.
/// </param>
private void CalculateProportions(Point loc)
{
// set title bounds
this.TitleBounds = new Rectangle(loc, this.Calendar.HeaderSize);
// set helper variables
bool useRTL = this.Calendar.UseRTL;
int adjustX = this.Calendar.WeekNumberSize.Width;
int dayWidth = this.Calendar.DaySize.Width;
int dayHeight = this.Calendar.DaySize.Height;
int weekRectAdjust = 0;
// if RTL mode
if (useRTL)
{
// set new values
weekRectAdjust = dayWidth * 7;
adjustX = 0;
}
// calculate day names header bounds
this.DayNamesBounds = new Rectangle(new Point(loc.X + adjustX, loc.Y + this.TitleBounds.Height), this.Calendar.DayNamesSize);
// calculate week number header bounds
Rectangle weekNumberRect = new Rectangle(
loc.X + weekRectAdjust,
loc.Y + this.TitleBounds.Height + this.DayNamesBounds.Height,
this.Calendar.WeekNumberSize.Width,
dayHeight);
// save week header bounds
Rectangle weekBounds = weekNumberRect;
// calculate month body bounds
Rectangle monthRect = new Rectangle(
loc.X + adjustX,
loc.Y + this.TitleBounds.Height + this.DayNamesBounds.Height,
dayWidth * 7,
dayHeight * 6);
// get start position at where to draw
int startX = monthRect.X;
adjustX = dayWidth;
// if in RTL mode adjust start position and advancing width
if (useRTL)
{
startX = monthRect.Right - dayWidth;
adjustX = -dayWidth;
}
int x = startX;
int y = monthRect.Y;
int j = 0;
if (this.Days.Length > 0
&& new MonthCalendarDate(this.Calendar.CultureCalendar, this.Days[0].Date).DayOfWeek != this.Calendar.FormatProvider.FirstDayOfWeek)
{
DayOfWeek currentDayOfWeek = this.Calendar.FormatProvider.FirstDayOfWeek;
DayOfWeek dayOfWeek = new MonthCalendarDate(this.Calendar.CultureCalendar, this.Days[0].Date).DayOfWeek;
while (currentDayOfWeek != dayOfWeek)
{
x += adjustX;
if ((j + 1) % 7 == 0)
{
x = startX;
y += dayHeight;
}
int nextDay = (int)currentDayOfWeek + 1;
if (nextDay > 6)
{
nextDay = 0;
}
currentDayOfWeek = (DayOfWeek)nextDay;
j++;
}
}
// loop through all possible 42 days
for (int i = 0; i < this.Days.Length; i++, j++)
{
// set bounds of the day
this.Days[i].Bounds = new Rectangle(x, y, dayWidth, dayHeight);
// if at the beginning of a row
if (i % 7 == 0)
{
// check if any day in the week is visible
bool visible = this.Days[i].Visible || this.Days[Math.Min(i + 6, this.Days.Length - 1)].Visible;
// set the week number header element bounds and if it's visible
this.Weeks[i / 7].Bounds = weekNumberRect;
this.Weeks[i / 7].Visible = visible;
// adjust bounds of week header
if (visible)
{
weekBounds = Rectangle.Union(weekBounds, weekNumberRect);
}
// adjust top position of the week number header bounds
weekNumberRect.Y += dayHeight;
}
// adjust left position of the next day
x += adjustX;
// if last day in the row
if ((j + 1) % 7 == 0)
{
// reset to start drawing position
x = startX;
// and advance a row
y += dayHeight;
}
}
// adjust the month body height and top position
monthRect.Y = weekBounds.Y;
monthRect.Height = weekBounds.Height;
// set month body bounds
this.MonthBounds = monthRect;
// set week number header bounds
this.WeekBounds = weekBounds;
}
/// <summary>
/// Raises the <see cref="System.Windows.Forms.Control.MouseMove"/> event.
/// </summary>
/// <param name="e">
/// A <see cref="MouseEventArgs"/> that contains the event data.
/// </param>
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (e.Location == this.mouseLocation)
{
return;
}
this.mouseLocation = e.Location;
// backup and reset mouse move flags
this.mouseMoveFlags.BackupAndReset();
// perform hit test
MonthCalendarHitTest hit = this.HitTest(e.Location);
if (e.Button == MouseButtons.Left)
{
// if selection started - only in manual selection mode
if (this.selectionStarted)
{
// if selection started with hit type Day and mouse is over new date
if (hit.Type == MonthCalendarHitType.Day && this.currentHitType == MonthCalendarHitType.Day
&& this.currentMoveBounds != hit.Bounds)
{
this.currentMoveBounds = hit.Bounds;
// set new selection end
this.SelectionEnd = hit.Date;
}
else if (hit.Type == MonthCalendarHitType.Week && this.currentHitType == MonthCalendarHitType.Week)
{
// set indicator that a week header element is selected
this.mouseMoveFlags.WeekHeader = true;
// get new end date
DateTime endDate = new MonthCalendarDate(this.CultureCalendar, hit.Date).AddDays(6).Date;
// if new week header element
if (this.currentMoveBounds != hit.Bounds)
{
this.currentMoveBounds = hit.Bounds;
// check if selection is switched
if (this.selectionStart == this._selectionStartRange.End)
{
// are we after the original end date?
if (endDate > this.selectionStart)
{
// set original start date
this.selectionStart = this._selectionStartRange.Start;
// set new end date
this.SelectionEnd = endDate;
}
else
{
// going backwards - set new "end" date - it's now the start date
this.SelectionEnd = hit.Date;
}
}
else
{
// we are after the start date
if (endDate > this.selectionStart)
{
// set end date
this.SelectionEnd = endDate;
}
else
{
// switch start and end
this.selectionStart = this._selectionStartRange.End;
this.SelectionEnd = hit.Date;
}
}
}
}
}
else
{
switch (hit.Type)
{
case MonthCalendarHitType.MonthName:
{
this.mouseMoveFlags.MonthName = hit.Date;
this.mouseMoveFlags.HeaderDate = hit.Date;
this.Invalidate(hit.InvalidateBounds);
break;
}
case MonthCalendarHitType.MonthYear:
{
this.mouseMoveFlags.Year = hit.Date;
this.mouseMoveFlags.HeaderDate = hit.Date;
this.Invalidate(hit.InvalidateBounds);
break;
}
case MonthCalendarHitType.Header:
{
this.mouseMoveFlags.HeaderDate = hit.Date;
this.Invalidate(hit.InvalidateBounds);
break;
}
case MonthCalendarHitType.Arrow:
{
bool useRTL = this.UseRTL;
if (this._leftArrowRect.Contains(e.Location))
{
this.mouseMoveFlags.LeftArrow = !useRTL;
this.mouseMoveFlags.RightArrow = useRTL;
this.mouseMoveFlags.HeaderDate = this.Months[0].Date;
}
else
{
this.mouseMoveFlags.LeftArrow = useRTL;
this.mouseMoveFlags.RightArrow = !useRTL;
this.mouseMoveFlags.HeaderDate = this.Months[this.calendarDimensions.Width - 1].Date;
}
this.Invalidate(hit.InvalidateBounds);
break;
}
case MonthCalendarHitType.Footer:
{
this.mouseMoveFlags.Footer = true;
this.Invalidate(hit.InvalidateBounds);
break;
}
default:
{
this.Invalidate();
break;
}
}
}
}
else if (e.Button == MouseButtons.None)
{
// no mouse button is pressed
// set flags and invalidate corresponding region
switch (hit.Type)
{
case MonthCalendarHitType.Day:
{
this.mouseMoveFlags.Day = hit.Date;
var bold = this.GetBoldedDates().Contains(hit.Date)
|| this._boldDatesCollection.Exists(d => d.Value.Date == hit.Date.Date);
this.OnActiveDateChanged(new ActiveDateChangedEventArgs(hit.Date, bold));
this.InvalidateMonth(hit.Date, true);
break;
}
case MonthCalendarHitType.Week:
{
this.mouseMoveFlags.WeekHeader = true;
break;
}
case MonthCalendarHitType.MonthName:
{
this.mouseMoveFlags.MonthName = hit.Date;
this.mouseMoveFlags.HeaderDate = hit.Date;
break;
}
case MonthCalendarHitType.MonthYear:
{
this.mouseMoveFlags.Year = hit.Date;
this.mouseMoveFlags.HeaderDate = hit.Date;
break;
}
case MonthCalendarHitType.Header:
{
this.mouseMoveFlags.HeaderDate = hit.Date;
break;
}
case MonthCalendarHitType.Arrow:
{
bool useRTL = this.UseRTL;
if (this._leftArrowRect.Contains(e.Location))
{
this.mouseMoveFlags.LeftArrow = !useRTL;
this.mouseMoveFlags.RightArrow = useRTL;
this.mouseMoveFlags.HeaderDate = this.Months[0].Date;
}
else if (this._rightArrowRect.Contains(e.Location))
{
this.mouseMoveFlags.LeftArrow = useRTL;
this.mouseMoveFlags.RightArrow = !useRTL;
this.mouseMoveFlags.HeaderDate = this.Months[this.calendarDimensions.Width - 1].Date;
}
break;
}
case MonthCalendarHitType.Footer:
{
this.mouseMoveFlags.Footer = true;
break;
}
}
// if left arrow RequestState changed
if (this.mouseMoveFlags.LeftArrowChanged)
{
this.Invalidate(this.UseRTL ? this._rightArrowRect : this._leftArrowRect);
this.Update();
}
// if right arrow RequestState changed
if (this.mouseMoveFlags.RightArrowChanged)
{
this.Invalidate(this.UseRTL ? this._leftArrowRect : this._rightArrowRect);
this.Update();
}
// if header RequestState changed
if (this.mouseMoveFlags.HeaderDateChanged)
{
this.Invalidate();
}
else if (this.mouseMoveFlags.MonthNameChanged || this.mouseMoveFlags.YearChanged)
{
// if RequestState of month name or year in header changed
SelectionRange range1 = new SelectionRange(this.mouseMoveFlags.MonthName, this.mouseMoveFlags.Backup.MonthName);
SelectionRange range2 = new SelectionRange(this.mouseMoveFlags.Year, this.mouseMoveFlags.Backup.Year);
this.Invalidate(this.Months[this.GetIndex(range1.End)].TitleBounds);
if (range1.End != range2.End)
{
this.Invalidate(this.Months[this.GetIndex(range2.End)].TitleBounds);
}
}
// if day RequestState changed
if (this.mouseMoveFlags.DayChanged)
{
// invalidate current day
this.InvalidateMonth(this.mouseMoveFlags.Day, false);
// invalidate last day
this.InvalidateMonth(this.mouseMoveFlags.Backup.Day, false);
}
// if footer RequestState changed
if (this.mouseMoveFlags.FooterChanged)
{
this.Invalidate(this._footerRect);
}
}
// if mouse is over a week header, change cursor
if (this.mouseMoveFlags.WeekHeaderChanged)
{
this.Cursor = this.mouseMoveFlags.WeekHeader ? Cursors.UpArrow : Cursors.Default;
}
}
/// <summary>
/// Raises the <see cref="System.Windows.Forms.Control.MouseDown"/> event.
/// </summary>
/// <param name="e">
/// A <see cref="MouseEventArgs"/> that contains the event data.
/// </param>
protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
this.Focus();
this.Capture = true;
// reset the selection range where selection started
this._selectionStartRange = null;
if (e.Button == MouseButtons.Left)
{
MonthCalendarHitTest hit = this.HitTest(e.Location); // perform hit test
this.currentMoveBounds = hit.Bounds; // set current bounds
this.currentHitType = hit.Type; // set current hit type
switch (hit.Type)
{
case MonthCalendarHitType.Day:
{
// save old selection range
SelectionRange oldRange = this.SelectionRange;
if (!this.extendSelection || this.daySelectionMode != MonthCalendarSelectionMode.Manual)
{
// clear all selection ranges
this.selectionRanges.Clear();
}
switch (this.daySelectionMode)
{
case MonthCalendarSelectionMode.Day:
{
this.OnDateClicked(new DateEventArgs(hit.Date));
// only single days are selectable
if (this.selectionStart != hit.Date)
{
this.SelectionStart = hit.Date;
this.RaiseDateSelected();
}
break;
}
case MonthCalendarSelectionMode.WorkWeek:
{
// only single work week is selectable
// get first day of week
DateTime firstDay =
new MonthCalendarDate(this.CultureCalendar, hit.Date).GetFirstDayInWeek(this._formatProvider).Date;
// get work days
List<DayOfWeek> workDays = DateMethods.GetWorkDays(this.nonWorkDays);
// reset selection start and end
this.selectionEnd = DateTime.MinValue;
this.selectionStart = DateTime.MinValue;
// current range
SelectionRange currentRange = null;
// build selection ranges for work days
for (int i = 0; i < 7; i++)
{
DateTime toAdd = firstDay.AddDays(i);
if (workDays.Contains(toAdd.DayOfWeek))
{
if (currentRange == null)
{
currentRange = new SelectionRange(DateTime.MinValue, DateTime.MinValue);
}
if (currentRange.Start == DateTime.MinValue)
{
currentRange.Start = toAdd;
}
else
{
currentRange.End = toAdd;
}
}
else if (currentRange != null)
{
this.selectionRanges.Add(currentRange);
currentRange = null;
}
}
if (this.selectionRanges.Count >= 1)
{
// set first selection range
this.SelectionRange = this.selectionRanges[0];
this.selectionRanges.RemoveAt(0);
// if selection range changed, raise event
if (this.SelectionRange != oldRange)
{
this.RaiseDateSelected();
}
}
else
{
this.Refresh();
}
break;
}
case MonthCalendarSelectionMode.FullWeek:
{
// only a full week is selectable
// get selection start and end
MonthCalendarDate dt =
new MonthCalendarDate(this.CultureCalendar, hit.Date).GetFirstDayInWeek(this._formatProvider);
this.selectionStart = dt.Date;
this.selectionEnd = dt.GetEndDateOfWeek(this._formatProvider).Date;
// if range changed, raise event
if (this.SelectionRange != oldRange)
{
this.RaiseDateSelected();
this.Refresh();
}
break;
}
case MonthCalendarSelectionMode.Month:
{
// only a full month is selectable
MonthCalendarDate dt = new MonthCalendarDate(this.CultureCalendar, hit.Date).FirstOfMonth;
// get selection start and end
this.selectionStart = dt.Date;
this.selectionEnd = dt.AddMonths(1).AddDays(-1).Date;
// if range changed, raise event
if (this.SelectionRange != oldRange)
{
this.RaiseDateSelected();
this.Refresh();
}
break;
}
case MonthCalendarSelectionMode.Manual:
{
if (this.extendSelection)
{
var range = this.selectionRanges.Find(r => hit.Date >= r.Start && hit.Date <= r.End);
if (range != null)
{
this.selectionRanges.Remove(range);
}
}
// manual mode - selection ends when user is releasing the left mouse button
this.selectionStarted = true;
this._backupRange = this.SelectionRange;
this.selectionEnd = DateTime.MinValue;
this.SelectionStart = hit.Date;
break;
}
}
break;
}
case MonthCalendarHitType.Week:
{
this.selectionRanges.Clear();
if (this.maxSelectionCount > 6 || this.maxSelectionCount == 0)
{
this._backupRange = this.SelectionRange;
this.selectionStarted = true;
this.selectionEnd = new MonthCalendarDate(this.CultureCalendar, hit.Date).GetEndDateOfWeek(this._formatProvider).Date;
this.SelectionStart = hit.Date;
this._selectionStartRange = this.SelectionRange;
}
break;
}
case MonthCalendarHitType.MonthName:
{
this._monthSelected = hit.Date;
this.mouseMoveFlags.HeaderDate = hit.Date;
this.Invalidate(hit.InvalidateBounds);
this.Update();
this.monthMenu.Tag = hit.Date;
this.UpdateMonthMenu(this.CultureCalendar.GetYear(hit.Date));
this._showingMenu = true;
// show month menu
this.monthMenu.Show(this, hit.Bounds.Right, e.Location.Y);
break;
}
case MonthCalendarHitType.MonthYear:
{
this._yearSelected = hit.Date;
this.mouseMoveFlags.HeaderDate = hit.Date;
this.Invalidate(hit.InvalidateBounds);
this.Update();
this.UpdateYearMenu(this.CultureCalendar.GetYear(hit.Date));
this.yearMenu.Tag = hit.Date;
this._showingMenu = true;
// show year menu
this.yearMenu.Show(this, hit.Bounds.Right, e.Location.Y);
break;
}
case MonthCalendarHitType.Arrow:
{
// an arrow was pressed
// set new start date
if (this.SetStartDate(hit.Date))
{
// update months
this.UpdateMonths();
// raise event
this.RaiseDateChanged();
this.mouseMoveFlags.HeaderDate = this._leftArrowRect.Contains(e.Location)
? this.Months[0].Date
: this.Months[this.calendarDimensions.Width - 1].Date;
this.Refresh();
}
break;
}
case MonthCalendarHitType.Footer:
{
// footer was pressed
this.selectionRanges.Clear();
bool raiseDateChanged = false;
SelectionRange range = this.SelectionRange;
// determine if date changed event has to be raised
if (DateTime.Today < this.Months[0].FirstVisibleDate || DateTime.Today > this._lastVisibleDate)
{
// set new start date
if (this.SetStartDate(DateTime.Today))
{
// update months
this.UpdateMonths();
raiseDateChanged = true;
}
else
{
break;
}
}
// set new selection start and end values
this.selectionStart = DateTime.Today;
this.selectionEnd = DateTime.Today;
this.SetSelectionRange(this.daySelectionMode);
this.OnDateClicked(new DateEventArgs(DateTime.Today));
// raise events if necessary
if (range != this.SelectionRange)
{
this.RaiseDateSelected();
}
if (raiseDateChanged)
{
this.RaiseDateChanged();
}
this.Refresh();
break;
}
case MonthCalendarHitType.Header:
{
// header was pressed
this.Invalidate(hit.Bounds);
this.Update();
break;
}
}
}
}