private void sendMessageToolStripMenuItem_Click(object sender, EventArgs e)
{
//Lese alle Textfelder nacheinander aus und bastle ein Paket zusammen
Dictionary <string, string> Paket = new Dictionary <string, string>();
if (Server.udp_active() == true)
{
for (int i = 0; i < MessageTextboxName.Count; i++)
{
TextBox NameBox = MessageTextboxName[i];
TextBox ValueBox = MessageTextboxVariable[i];
if (NameBox.Text != "")
{
Paket.Add(NameBox.Text, ValueBox.Text);
}
}
//Paket wird versendet
if (Paket.Count > 0)
{
for (int i = 0; i < repeatUpDown.Value; i++)
{
statusBox1.print(i.ToString());
Server.SendData(Paket);
Thread.Yield();
Thread.Sleep(1);
Application.DoEvents();
}
}
else
{
statusBox1.print("Packet not send, because no data was entered!");
}
}
}
private void Zeitgeber_Tick(object sender, EventArgs e)
{
Dictionary <string, string> keinGPS = new Dictionary <string, string>()
{
{ "Latitude", "-" },
{ "Longitude", "-" },
{ "Height", "-" },
{ "Distance", "-1" }
};
//Erst nach 5 unlesbaren Paketen, wird GPS Position als nicht verfügbar gekennzeichnet
byte failure_counter = 0;
if (gps.IsOpen == true)
{
//Button verändern
connection_button.Text = "Disconnect";
string data = gps.ReadExisting();
string[] strArr = data.Split('$');
for (int i = 0; i < strArr.Length; i++)
{
string strTemp = strArr[i];
string[] lineArr = strTemp.Split(',');
if ((lineArr[0] == "GPGGA"))
{
try
{
// Display string representations of numbers for en-us culture
CultureInfo ci = new CultureInfo("en-us");
//Latitude
double XX = Convert.ToDouble(lineArr[2].Substring(0, 2)); //str2num(c_array{5}(1:3));
double YY = Convert.ToDouble(lineArr[2].Substring(2, 2)); //c_array{5}(4:5);
double ZZZZ = Convert.ToDouble(lineArr[2].Substring(5, 4)); //c_array{5}(7:end);
//Umrechnung nötig --> siehe Wikipedia
Latitude = Math.Round(XX + (YY + ZZZZ / 10000) / 60, 6);
//Latitude = lat.ToString("F06", ci);
//Longitude
XX = Convert.ToDouble(lineArr[4].Substring(0, 3)); //str2num(c_array{5}(1:3));
YY = Convert.ToDouble(lineArr[4].Substring(3, 2)); //c_array{5}(4:5);
ZZZZ = Convert.ToDouble(lineArr[4].Substring(6, 4)); //c_array{5}(7:end);
//Umrechnung nötig --> siehe Wikipedia
Longitude = Math.Round(XX + (YY + ZZZZ / 10000) / 60, 6);
//Longitude = lon.ToString("F06", ci);
//Height
GpsHeight = lineArr[9];
gps_available = true;
//Anzeige der Entfernung vom letzten Messpunkt (bzw. ersten überhaupt empfangenen GPS-Punkt)
if (lastLatitude == 0)
{
lastLatitude = Latitude;
}
if (lastLongitude == 0)
{
lastLongitude = Longitude;
}
double s = GetDistance(lastLatitude, lastLongitude, Latitude, Longitude);
//Für die Anzeige optimieren
if (s >= 1000)
{
abstand_letzte_messung.Text = (s / 1000).ToString() + "k";
}
else
{
abstand_letzte_messung.Text = s.ToString();
}
//Neu zeichnen der Karte
this.Refresh();
//Daten versenden
// Example Dictionary again
Dictionary <string, string> GPSDaten = new Dictionary <string, string>()
{
{ "Latitude", Latitude.ToString() },
{ "Longitude", Longitude.ToString() },
{ "Height", GpsHeight.ToString() },
{ "Distance", s.ToString() }
};
Server.SendData(GPSDaten);
latitude_label.Text = Latitude.ToString();
longitude_label.Text = Longitude.ToString();
height_label.Text = GpsHeight.ToString();
}
catch
{
//Cannot Read GPS values
failure_counter++;
if (failure_counter > 5)
{
failure_counter = 0;
Latitude = double.NaN;
Longitude = double.NaN;
GpsHeight = "GPS Unavailable";
gps_available = false;
abstand_letzte_messung.Text = "---";
Server.SendData(keinGPS);
latitude_label.Text = "---";
longitude_label.Text = "---";
height_label.Text = "---";
}
}
try
{
//Zeit - Unabhängig von den Positionsdaten, da die GPS-Zeit auch bei nur einem Satelliten zur Vefügung steht
GpsTime = lineArr[1].Substring(0, 2) + ":" + lineArr[1].Substring(2, 2) + ":" + lineArr[1].Substring(4, 2);
Server.SendData("Time", GpsTime);
}
catch
{
GpsTime = "GPS Unavailable";
gps_available = false;
Server.SendData(keinGPS);
}
//Zeige Uhrzeit im Statuslabel an
time_label.Text = GpsTime;
}
}
}
else
{
Latitude = double.NaN;
Longitude = double.NaN;
GpsHeight = "COM Port Closed";
Zeitgeber.Enabled = false;
abstand_letzte_messung.Text = "---";
//Button verändern
connection_button.Text = "Connect";
Server.SendData("status", "GPS deactivated");
}
}
/// <summary>
/// Sobald der UDP-Server Daten empfängt, wird über Events diese Methode aufgerufen
/// </summary>
/// <param name="sender">Objekt der UDP-Server-Klasse, dass die Daten empfangen hat</param>
/// <param name="e">Übermittelte Informationen</param>
public void EmpfangeDaten(object sender, DatenEventArgs e)
{
Application.DoEvents();
if ((e.Variablen_name == null) && (e.Paket == null))
{
return;
}
if (e.Paket == null)
{
//Mitteilung vom Server erhalten, z.B. Fehler, Statusbericht
if (e.Variablen_name.Equals("error", StringComparison.InvariantCultureIgnoreCase) == true)
{
error(null, "UDP-Server-Error: " + e.Inhalt);
}
else if (e.Variablen_name.Equals("hint", StringComparison.InvariantCultureIgnoreCase) == true)
{
display("Hint from UDP-Server: " + e.Inhalt);
}
}
else
{
//Paket empfangen
//Unterscheidung ob Befehl oder normales Paket
if (e.Inhalt == null)
{
//Normales Paket
}
else
{
string timestamp = "";
string befehl = null;
//Befehl erhalten
switch (e.Inhalt)
{
case "name":
if (e.Paket.Timestamp != null)
{
Server.send_answer(true, "5", timestamp); //500ms Wartezeit
}
Server.SendData("name", serverName);
if (e.Paket.Timestamp != null)
{
Server.send_answer(false, null, timestamp);
}
break;
case "shutdown":
if (e.Paket.Timestamp != null)
{
Server.send_answer(true, "5", timestamp); //500ms Wartezeit
}
Shutdown("1");
if (e.Paket.Timestamp != null)
{
Server.send_answer(false, null, timestamp);
}
break;
case "cmd":
if (e.Paket.Timestamp != null)
{
Server.send_answer(true, "6000", timestamp); //600s Wartezeit
}
if (e.Paket.Content.TryGetValue("value", out befehl))
{
Server.SendData("response", execute_cmd(befehl));
}
if (e.Paket.Timestamp != null)
{
Server.send_answer(false, null, timestamp);
}
break;
case "restart":
case "reboot":
if (e.Paket.Timestamp != null)
{
Server.send_answer(true, "5", timestamp); //500ms Wartezeit
}
Shutdown("6");
if (e.Paket.Timestamp != null)
{
Server.send_answer(false, null, timestamp);
}
break;
default:
display("Unknown Command received!");
Server.SendData("error", "Unknown Command received!");
break;
}
}
}
}
