private void RecalculateLanes()
{
if (Application.Current.MainWindow.Dispatcher.CheckAccess())
{
if (_recalculatingLanes)
{
return;
}
_recalculatingLanes = true;
var currentlyDragging = Application.Current.MainWindow.FindVisualChildren <TimeslotControl>().Where(x => x.HoldingStart || x.HoldingEnd).Select(x => x.Model);
foreach (var lane in Lanes.ToList())
{
var overlappers = lane.Items.Where(x => x.OverlapsAny(lane.Items)).Except(currentlyDragging).ToList();
while (overlappers.Count > 0)
{
lane.Items.Remove(overlappers.First());
var newLane = new TimelineLaneModel()
{
LaneNumber = Lanes.Count + 1
};
newLane.Items.Add(overlappers.First());
Lanes.Add(newLane);
overlappers = lane.Items.Where(x => x.OverlapsAny(lane.Items)).ToList();
}
}
foreach (var lane in Lanes.OrderByDescending(x => x.LaneNumber).ToList())
{
foreach (var item in lane.Items.ToList())
{
foreach (var lane2 in Lanes.Where(x => x.LaneNumber < lane.LaneNumber).ToList())
{
if (!item.OverlapsAny(lane2.Items))
{
if (currentlyDragging.Contains(item))
{
foreach (var item2 in lane2.Items.ToList())
{
lane.Items.Add(item2);
lane2.Items.Remove(item2);
}
}
else
{
lane2.Items.Add(item);
lane.Items.Remove(item);
}
}
}
}
}
foreach (var lane in Lanes.ToList())
{
if (lane.Items.Count == 0)
{
Lanes.Remove(lane);
}
}
foreach (var lane in Lanes)
{
lane.LaneNumber = Lanes.IndexOf(lane);
}
RaisePropertyChanged("Lanes");
_recalculatingLanes = false;
}
else
{
Application.Current.MainWindow.Dispatcher.Invoke(RecalculateLanes);
}
}