private void onHrDataReceived(HRData p_hrData)
{
Application.Current.Dispatcher.Invoke((Action) delegate
{
processHrData(p_hrData);
});
}
private void onTimerTick(object sender, ElapsedEventArgs e)
{
int bpm = (int)getRandomNumber(m_uiConfig.MinValue, m_uiConfig.MaxValue);
HRData hrData = new HRData(bpm, DateTime.Now);
m_hrSubject.OnNext(hrData);
}
private void startListening()
{
if (HRData.Count > 0)
{
HRData.Clear();
HRData = new ObservableCollection <HRData>();
}
CanStartExecute = false;
CanStopExecute = true;
m_heartRateListener.Start();
m_timer.Start();
}
private void processHrData(HRData p_hrData)
{
ObservableCollection <HRData> hrDataList = new ObservableCollection <HRData>();
int index = 0;
int firstCollectionIndex = 0;
if (HRData.Count == m_uiConfig.NumOfVisibleItems)
{
firstCollectionIndex = 1;
}
for (int i = firstCollectionIndex; i < HRData.Count; i++)
{
hrDataList.Add(new HRData(HRData[i].Bpm, HRData[i].Time, index++));
}
hrDataList.Add(new HRData(p_hrData.Bpm, p_hrData.Time, index));
HRData.Clear();
HRData = hrDataList;
LastBpmValue = HRData.Last().Bpm;
}
private void onDataRecieved(object p_sender, SerialDataReceivedEventArgs p_e)
{
if (m_serialPort.IsOpen)
{
m_isReading = true;
byte[] totalMessageBytes = new byte[12];
byte[] timeBytes = new byte[8];
byte[] valueBytes = new byte[4];
(p_sender as SerialPort).Read(totalMessageBytes, 0, 12);
for (int i = 0; i < 8; i++)
{
timeBytes[i] = totalMessageBytes[i];
}
int index = 0;
for (int i = 8; i < 12; i++)
{
valueBytes[index] = totalMessageBytes[i];
index++;
}
int value = BitConverter.ToInt16(valueBytes, 0);
long timeLong = BitConverter.ToInt64(timeBytes, 0);
DateTime dateTime = DateTime.FromBinary(timeLong);
HRData hrData = new HRData(value, dateTime);
m_hrSubject.OnNext(hrData);
m_isReading = false;
if (m_shallClose)
{
m_serialPort.Close();
m_shallClose = false;
}
}
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
HRData hrData = (HRData)value;
return(hrData.Time.Hour.ToString() + ":" + hrData.Time.Minute.ToString() + "." + hrData.Time.Second.ToString());
}