private void AddPointToZone()
{
//if (_recognizer.State == UIGestureRecognizerState.Began)
//{
// _dragStarted = false;
// Console.WriteLine("Began !");
// return;
//}
//else if (_recognizer.State == UIGestureRecognizerState.Changed)
//{
// _dragStarted = true;
// Console.WriteLine("Drag !");
// // Do dragging stuff here
//}
//else if (_recognizer.State == UIGestureRecognizerState.Ended){
// if (_dragStarted)
// {
// Console.WriteLine("Ended 1!");
// _dragStarted = false;
// return;
// }
// else {
// Console.WriteLine("Ended !");
// }
// }
if (_recognizer.State == UIGestureRecognizerState.Began)
{
//if (_recognizer.State == UIGestureRecognizerState.Began || !IsOnPointAdding) return;
if (ZonePolygon != null && ZonePolygon.Points.Count() > App.Locator.ModeZone.MAX_NUMBER_OF_POINTS)
{
return;
}
// convert touched position to map coordinate
var userTouch = _recognizer.LocationInView(MapViewControl);
var mapPoint = MapViewControl.ConvertPoint(userTouch, MapViewControl);
var newAnnotation = new ModeZoneAnnotation(mapPoint, true);
// change the previous annotation to green
var lastAnnotation = PointsOfZone.LastOrDefault();
if (lastAnnotation != null)
{
MapViewControl.RemoveAnnotation(lastAnnotation);
((ModeZoneAnnotation)lastAnnotation).IsLastAnnotation = false;
MapViewControl.AddAnnotation(lastAnnotation);
}
// refresh the polygone
List <LatitudeLongitude> zone = PointsOfZone.Select(el => new LatitudeLongitude(el.Coordinate.Latitude, el.Coordinate.Longitude)).ToList();
zone.Add(new LatitudeLongitude(mapPoint.Latitude, mapPoint.Longitude));
if (!App.Locator.ModeZone.CheckCorrectAreaFormat(zone))
{
return;
}
var pointsToRestore = PointsOfZone.Select(el => el.Coordinate).ToList();
PointsOfZone.Add(newAnnotation);
MapViewControl.AddAnnotation(newAnnotation);
var isInAlert = MapViewModelBase.Mode != null && MapViewModelBase.Mode.StatusDefinition_idstatusDefinition != 1;
CreateZone(PointsOfZone.Select(s => new LatitudeLongitude(s.Coordinate.Latitude, s.Coordinate.Longitude)).ToList(), isInAlert, true, 0);
RefreshZone();
// reverse the action
UndoActions.Add(new Action(() =>
{
MapViewControl.RemoveAnnotation(newAnnotation);
PointsOfZone.Remove(PointsOfZone.Last());
var lastAnnotationUndo = PointsOfZone.LastOrDefault();
if (lastAnnotationUndo != null)
{
MapViewControl.RemoveAnnotation(lastAnnotationUndo);
((ModeZoneAnnotation)lastAnnotationUndo).IsLastAnnotation = true;
MapViewControl.AddAnnotation(lastAnnotationUndo);
}
CreateZone(pointsToRestore.Select(s => new LatitudeLongitude(s.Latitude, s.Longitude)).ToList(), isInAlert, true, 0);
RefreshZone();
if (ZonePolygon == null || ZonePolygon.Points == null || PointsOfZone.Count() < 3)
{
_nextButton.Enabled = false;
}
else
{
_nextButton.Enabled = true;
}
}));
// if the zone contain 3 points, enable the next button
if (PointsOfZone.Count < 3)
{
_nextButton.Enabled = false;
}
else
{
_nextButton.Enabled = true;
}
}
}