/// <summary>
/// Initializes a new instance of the <see cref="NmeaLocationDataSource"/> class.
/// </summary>
/// <param name="monitor">The NMEA device to monitor</param>
/// <param name="startStopDevice">Whether starting this datasource also controls the underlying NMEA device</param>
public NmeaLocationDataSource(NmeaParser.Gnss.GnssMonitor monitor, bool startStopDevice = true)
{
if (monitor == null)
{
throw new ArgumentNullException(nameof(monitor));
}
this.m_gnssMonitor = monitor;
m_startStopDevice = startStopDevice;
}
/// <summary>
/// Unloads the current device, and opens the next device
/// </summary>
/// <param name="device"></param>
private async Task StartDevice(NmeaParser.NmeaDevice device)
{
//Clean up old device
if (currentDevice != null)
{
currentDevice.MessageReceived -= device_MessageReceived;
if (currentDevice.IsOpen)
{
await currentDevice.CloseAsync();
}
currentDevice.Dispose();
if (gnssMonitorView.Monitor != null)
{
gnssMonitorView.Monitor.LocationChanged -= Monitor_LocationChanged;
gnssMonitorView.Monitor = monitor = null;
}
mapplot.Clear();
}
output.Text = "";
messages.Clear();
gprmcView.Message = null;
gpggaView.Message = null;
gpgsaView.Message = null;
gpgllView.Message = null;
pgrmeView.Message = null;
satView.ClearGsv();
satSnr.ClearGsv();
//Start new device
currentDevice = device;
foreach (var child in MessagePanel.Children.OfType <UnknownMessageControl>().ToArray())
{
MessagePanel.Children.Remove(child);
}
currentDevice.MessageReceived += device_MessageReceived;
if (device is NmeaParser.NmeaFileDevice)
{
currentDeviceInfo.Text = string.Format("NmeaFileDevice( file={0} )", ((NmeaParser.NmeaFileDevice)device).FileName);
}
else if (device is NmeaParser.SerialPortDevice)
{
currentDeviceInfo.Text = string.Format("SerialPortDevice( port={0}, baud={1} )",
((NmeaParser.SerialPortDevice)device).Port.PortName,
((NmeaParser.SerialPortDevice)device).Port.BaudRate);
}
else if (device is BluetoothDevice bd)
{
currentDeviceInfo.Text = $"Bluetooth {bd.Service.Device.Name}";
}
await device.OpenAsync();
gnssMonitorView.Monitor = monitor = new GnssMonitor(device);
gnssMonitorView.Monitor.LocationChanged += Monitor_LocationChanged;
view2d.GnssMonitor = monitor;
view3d.GnssMonitor = monitor;
}
