protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
{
base.OnMouseLeftButtonDown(e);
ICalendarSelectableElement hitted = HitTest(e.GetPosition(this));
CalendarItem hittedItem = hitted as CalendarItem;
bool shiftPressed = Keyboard.IsKeyDown(Key.LeftShift) || Keyboard.IsKeyDown(Key.RightShift);
if (!Focused)
{
Focus();
}
switch (State)
{
case CalendarState.Idle:
if (hittedItem != null)
{
if (!shiftPressed)
{
ClearSelectedItems();
}
hittedItem.SetSelected(true);
Invalidate(hittedItem);
OnItemSelected(new CalendarItemEventArgs(hittedItem));
itemOnState = hittedItem;
itemOnStateChanged = false;
if (AllowItemEdit)
{
if (itemOnState.ResizeStartDateZone(e.GetPosition(this)) && AllowItemResize)
{
SetState(CalendarState.ResizingItem);
itemOnState.SetIsResizingStartDate(true);
}
else if (itemOnState.ResizeEndDateZone(e.GetPosition(this)) && AllowItemResize)
{
SetState(CalendarState.ResizingItem);
itemOnState.SetIsResizingEndDate(true);
}
else
{
SetState(CalendarState.DraggingItem);
}
}
SetSelectionRange(null, null);
}
else
{
ClearSelectedItems();
if (shiftPressed)
{
if (hitted != null && SelectedElementEnd == null && !SelectedElementEnd.Equals(hitted))
{
SelectedElementEnd = hitted;
}
}
else
{
if (SelectedElementStart == null || (hitted != null && !SelectedElementStart.Equals(hitted)))
{
SetSelectionRange(hitted, hitted);
}
}
SetState(CalendarState.DraggingTimeSelection);
}
break;
case CalendarState.DraggingTimeSelection:
break;
case CalendarState.DraggingItem:
break;
case CalendarState.ResizingItem:
break;
case CalendarState.EditingItemText:
break;
}
}
