/// <summary>
/// Initializes a new <see cref="AnalogSensorReadingChangedEventArgs"/>
/// </summary>
/// <param name="reading">
/// The current reading.
/// </param>
public AnalogSensorReadingChangedEventArgs(AnalogSensorReading reading)
{
if (reading == null)
{
throw new ArgumentNullException(nameof(reading));
}
this.Reading = reading;
}
private void EnsureInitialized()
{
if (isInitialized) { return; }
// Validate
if (adcChannel == null) { throw new MissingIoException(nameof(AdcChannel)); }
// Create default reading
currentReading = new AnalogSensorReading(0, 0);
// Done
isInitialized = true;
}
private void Update()
{
// Read X and Y values
var val = adcChannel.ReadValue();
var ratio = adcChannel.ReadRatio(); // TODO: Support customized value scaling
// Update current value
lock (currentReading)
{
currentReading = new AnalogSensorReading(val, ratio);
}
// Notify
readingChangedEvent.Raise(this, new AnalogSensorReadingChangedEventArgs(currentReading));
}
/// <summary>
/// Initializes a new <see cref="AnalogSensorReadingChangedEventArgs"/>
/// </summary>
/// <param name="reading">
/// The current reading.
/// </param>
public AnalogSensorReadingChangedEventArgs(AnalogSensorReading reading)
{
if (reading == null) throw new ArgumentNullException("reading");
this.Reading = reading;
}