/// <summary>
/// Open a GPS serial port.
/// </summary>
/// <param name="comPort"></param>
/// <param name="baudRate"></param>
/// <returns>true for success</returns>
public bool Open(int comPort, int baudRate)
{
if (_serialPort != null)
{
Close();
}
if (!ValidBaudRate(baudRate))
{
throw new System.ArgumentException(Resources.InvalidBaudRate, "baudRate");
}
_serialPort = new SerialPort("COM" + comPort.ToString(CultureInfo.InvariantCulture), baudRate, Parity.None, 8, StopBits.One);
_serialPort.Handshake = Handshake.None;
_serialPort.Encoding = Encoding.ASCII;
_serialPort.NewLine = "\r\n";
_serialPort.ReadTimeout = 1100;
if (_gpsDataPort == null)
{
_gpsDataPort = new GpsDataPort();
}
bool serialPortOpened = false;
try
{
if (comPort > 0)
{
if (TrySerialPort(_serialPort.PortName, baudRate))
{
_serialPort.Open();
serialPortOpened = true;
_serialPort.DataReceived += new SerialDataReceivedEventHandler(serialPort_DataReceived);
}
}
}
catch
{
if (serialPortOpened)
{
serialPortOpened = false;
_serialPort.DataReceived -= new SerialDataReceivedEventHandler(serialPort_DataReceived);
}
}
return(serialPortOpened);
}
/// <summary>
/// Open a Gps Log file and return output to the Gps Service
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
public bool Open(string fileName)
{
if (_serialPort != null)
{
Close();
}
if (_gpsDataPort == null)
{
_gpsDataPort = new GpsDataPort();
}
if (File.Exists(fileName))
{
StreamReader r = File.OpenText(fileName);
while (!r.EndOfStream)
{
string line = r.ReadLine().Trim();
int ix = line.IndexOf('*');
if (ix < 0)
{
_gpsDataPort.Post(new InvalidDataException(Resources.InvalidGpsStream));
}
else
{
if (ValidChecksum(line))
{
string[] fields = line.Substring(0, ix).Split(',');
_gpsDataPort.Post(fields);
}
else
{
_gpsDataPort.Post(new InvalidDataException(Resources.FailedChecksumValidation + line));
}
}
}
r.Close();
return(true);
}
return(false);
}
/// <summary>
/// Default GpsConnection constructor
/// </summary>
/// <param name="config"></param>
/// <param name="gpsDataPort"></param>
public GpsConnection(MicrosoftGpsConfig config, GpsDataPort gpsDataPort)
{
this._config = config;
this._gpsDataPort = gpsDataPort;
}
