protected virtual void OnPositionChanged(PositionEventArgs e)
{
if (e.status == PositionEventArgs.PositionStatus.Valid)
LastPos = e.position;
else
LastPos = null;
if (PositionChanged != null)
PositionChanged(this, e);
}
public void StartGPS()
{
position = null;
if (ClientSettings.UseGPS)
{
gps.LocationChanged += new PockeTwit.GPS.LocationChangedEventHandler(gps_LocationChanged);
if (!gps.Opened)
{
gps.Open();
}
}
if (ril != null)
{
ril.PositionChanged += new EventHandler<PositionEventArgs>(RILPositionChanged);
ril.Enabled = true;
}
}
private void PositionChanged(object sender, PositionEventArgs pe)
{
if (LocationReady != null)
{
if (pe.status == PositionEventArgs.PositionStatus.Valid)
{
position = pe.position;
LocationReady(position, sender== ril ? LocationSource.RIL : LocationSource.GPS);
}
}
}
void gps_LocationChanged(object sender, PockeTwit.GPS.LocationChangedEventArgs args)
{
PositionEventArgs.PositionStatus stat = PositionEventArgs.PositionStatus.Invalid;
PockeTwit.Position.GeoCoord le = new PockeTwit.Position.GeoCoord(0, 0);
if (gps.Opened)
{
try
{
if (args.Position == null) { stat = PositionEventArgs.PositionStatus.Invalid; }
if (args.Position.LatitudeValid && args.Position.LongitudeValid)
{
if (!Double.IsNaN(args.Position.Longitude) && !Double.IsNaN(args.Position.Latitude))
{
le = new PockeTwit.Position.GeoCoord(args.Position.Latitude, args.Position.Longitude);
stat = PositionEventArgs.PositionStatus.Valid;
}
}
}
catch (DivideByZeroException)
{
stat = PositionEventArgs.PositionStatus.Error;
}
}
// once we know where we are precisely, stop looking
if (stat == PositionEventArgs.PositionStatus.Valid && ril != null)
ril.Enabled = false; // turn RIL off immediately
PositionChanged(sender, new PositionEventArgs(stat, le, DateTime.Now));
if (stat == PositionEventArgs.PositionStatus.Valid)
StopGPS(); // and stop GPS
}
public List<Place> GetNearbyPlaces(GeoCoord position)
{
List<Place> twitPlaces = new List<Place>();
Dictionary<string, PlaceType> placeTypes = new Dictionary<string,PlaceType>();
placeTypes.Add("poi", PlaceType.Poi);
placeTypes.Add("neighborhood", PlaceType.Neighbourhood);
placeTypes.Add("city", PlaceType.City);
placeTypes.Add("admin", PlaceType.Administrative);
placeTypes.Add("country", PlaceType.Country);
string url = string.Format(TwitterNewBaseUrlFormat, GetObjectTypeString(ObjectType.Geo), GetActionTypeString(ActionType.Search), GetFormatTypeString(OutputFormatType.JSON));
url += string.Format("?lat={0}&long={1}&granularity=poi", position.Lat.ToString(CultureInfo.InvariantCulture), position.Lon.ToString(CultureInfo.InvariantCulture));
string jsonresp = ExecuteGetCommand(url);
Hashtable jsonResponse = PockeTwit.JSON.JsonDecode(jsonresp) as Hashtable;
if (jsonResponse != null)
{
Hashtable result = jsonResponse["result"] as Hashtable;
if (result != null)
{
ArrayList places = result["places"] as ArrayList;
if (places != null)
{
foreach (Hashtable place in places)
{
twitPlaces.Add(
new TwitterPlace
{
TwitterPlaceID = place["id"].ToString(),
DisplayName = place["full_name"].ToString(),
Type = placeTypes[place["place_type"].ToString()],
Position = position // until we do bounding boxes
}
);
}
}
}
}
return twitPlaces;
}
void l_LocationReady(GeoCoord Location, LocationManager.LocationSource Source)
{
// We're in a separate thread, probably - grab the places from Twitter
if (Location != null)
{
if (GPSLocation != null && Source == LocationManager.LocationSource.RIL)
return; // if we've got a location and RIL gives another one, ignore it
Twitter Conn = Servers.CreateConnection(AccountToSet);
if (Conn is PlaceAPI)
{
PlaceAPI PlaceSearch = Conn as PlaceAPI;
places = PlaceSearch.GetNearbyPlaces(Location);
}
DoLocationReady(Location, Source);
}
}
void DoLocationReady(GeoCoord Location, LocationManager.LocationSource Source)
{
try
{
if (InvokeRequired)
{
LocationManager.delLocationReady d = new LocationManager.delLocationReady(DoLocationReady);
BeginInvoke(d, Location, Source);
}
else
{
GPSLocation = Location;
lblGPS.Text = PockeTwit.Localization.XmlBasedResourceManager.GetString("Location Found");
lblGPS.Text += " (" + Source.ToString() + ")";
if (DetectDevice.DeviceType == DeviceType.Standard)
{
// just enable the menuItem
if (null != menuGPSInsert)
{
menuGPSInsert.Enabled = true;
}
}
else
{
picInsertGPSLink.Visible = true;
}
Place selP = null; // currently selected place, if any
if (cmbPlaces.SelectedItem is Place)
{
selP = cmbPlaces.SelectedItem as Place;
}
cmbPlaces.Items.Clear();
cmbPlaces.Visible = true;
cmbPlaces.Items.Add(GPSLocation);
cmbPlaces.SelectedIndex = 0;
if (places != null)
{
foreach (Place p in places)
cmbPlaces.Items.Add(p);
}
foreach (object item in cmbPlaces.Items)
{
if (item is Place)
{
Place p = item as Place;
if (p.Equals(selP))
{
cmbPlaces.SelectedItem = p;
break;
}
}
}
if (cmbPlaces.SelectedItem is GeoCoord && selP != null) // not selected a place
{
cmbPlaces.Items.Add(selP);
cmbPlaces.SelectedItem = selP;
}
}
}
catch (ObjectDisposedException)
{
}
}
private void StartLocating()
{
//StartAnimation
cmbPlaces.Visible = false;
LocationFinder.StopGPS(); // in case it's running
LocationFinder.StartGPS();
lblGPS.Text = PockeTwit.Localization.XmlBasedResourceManager.GetString("Seeking GPS");
GPSLocation = null;
//pictureLocation.Visible = false;
//lblGPS.Visible = true;
}
public PositionEventArgs(PositionStatus status, GeoCoord position, DateTime time)
{
this.status = status;
this.position = position;
this.time = time;
}
void Locator_LocationReady(GeoCoord Location, LocationManager.LocationSource Source)
{
GPSLocation = Location;
GPSLocked();
}
