public PositionalDataForm(PositionalDataShape posData, UnitSystem unitSystem) : this()
{
this.unitSystem = unitSystem;
txtTime.Text = ManeuveringBoard.GetTimeString(posData.Time);
txtTime.Focus();
txtTime.SelectAll();
Text = grpObservation.Text = (posData is Waypoint ? "Waypoint" : "Observation") + " Data";
PositionalDataShape previousPosition = null;
UnitShape observer = posData is Observation ? ((Observation)posData).Observer : null;
for (int index = posData.Parent.Children.IndexOf(posData) - 1; index >= 0; index--)
{
previousPosition = posData.Parent.Children[index] as PositionalDataShape;
if (previousPosition != null && previousPosition.GetType() == posData.GetType() &&
(!(previousPosition is Observation) || ((Observation)previousPosition).Observer == observer))
{
break;
}
else
{
previousPosition = null;
}
}
if (previousPosition != null)
{
previousTime = previousPosition.Time;
}
if (posData is BearingObservation)
{
double bearing = ((BearingObservation)posData).Bearing;
grpPrevious.Enabled = false;
grpObserved.Enabled = false;
txtObserverDistance.Enabled = false;
txtObserverBearing.Text = (bearing * MathConst.RadiansToDegrees).ToString("0.##");
txtObserverBearing.Tag = bearing;
txtObservedBearing.WasChanged = false; // ignore programmatic change
}
else
{
this.posDataPoint = posData.Position;
FillRelativeTo((UnitShape)posData.Parent, txtObservedBearing, txtObservedDistance, out observedPoint);
if (posData is PointObservation)
{
FillRelativeTo(observer, txtObserverBearing, txtObserverDistance, out observerPoint);
}
else
{
grpObserver.Enabled = false;
grpObserved.Text = "Relative to Unit";
}
if (previousPosition == null)
{
grpPrevious.Enabled = false;
}
else
{
FillRelativeTo(previousPosition, txtPreviousBearing, txtPreviousDistance, out previousPoint);
}
waypoint = posData is Waypoint;
if (waypoint)
{
waypointTimes = posData.Parent.Children.OfType <Waypoint>().Where(w => w != posData).Select(w => w.Time).ToList();
}
}
}
