/// <summary>
/// Handles the Finish button.
/// </summary>
/// <returns>The point created at the intersection (null if an error was reported).
/// The caller is responsible for disposing of the dialog and telling the controller
/// the command is done)</returns>
internal override PointFeature Finish()
{
// The intersection SHOULD be defined (the Finish button should have
// been disabled if it wasn't)
IPosition x = intersectInfo.Intersection;
if (x == null)
{
MessageBox.Show("No intersection. Nothing to save");
return(null);
}
// If we're not doing an update, just save the edit
UpdateUI up = (GetCommand() as UpdateUI);
if (up == null)
{
return(SaveDirLine());
}
// Remember the changes as part of the UI object (the original edit remains
// unchanged for now)
IntersectDirectionAndLineOperation op = (IntersectDirectionAndLineOperation)up.GetOp();
UpdateItemCollection changes = op.GetUpdateItems(getDirection.Direction,
getLine.Line,
intersectInfo.ClosestPoint);
if (!up.AddUpdate(op, changes))
{
return(null);
}
// Return the point previously created at the intersect
return(op.IntersectionPoint);
}
