/// <summary>
/// Creates a mask to capsulate the source settable property.
/// </summary>
/// <typeparam name="TSource">The type of the property.</typeparam>
/// <param name="source">The source property.</param>
/// <returns>An <see cref="IGetOnlyProperty<TSource>"/> object.</returns>
public static IGetOnlyProperty <TSource> ToGetOnlyMask <TSource>(this ISettableProperty <TSource> source)
{
if (source == null)
{
throw new ArgumentNullException("source");
}
return(new GetOnlyPropertyMask <TSource>(source));
}
public GetOnlyPropertyMask(ISettableProperty <T> source)
{
if (source == null)
{
throw new ArgumentNullException("source");
}
_source = source;
}
public static IGetOnlyProperty <TResult> SelectToGetOnly <TSource, TResult>(this ISettableProperty <TSource> source, Func <TSource, TResult> selector, bool notifiesUnchanged)
{
if (source == null)
{
throw new ArgumentNullException("source");
}
if (selector == null)
{
throw new ArgumentNullException("selector");
}
return(new FollowingGetOnlyProperty <TResult>(source.Select(selector), selector(source.Value), notifiesUnchanged));
}
public AsyncKinectManager()
{
_Sensor = ObservableProperty.CreateSettable <KinectSensor>(null);
Sensor = _Sensor.ToGetOnlyMask();
SensorDisconnected = _Sensor
.Select(s => _sensorCache)
.Where(s => s != null)
.ToGetOnly(null, true);
SensorConnected = _Sensor
.Do(s => _sensorCache = s)
.Where(s => s != null)
.ToGetOnly(null, true);
}
public AppModel()
{
Position = ObservableProperty.CreateSettable(new Point());
var client = EventHubClient.Create("sakapon-event-201508");
var index = 0;
Position
.Select(p => new { index = index++, position = p.ToString() })
.Select(o => JsonConvert.SerializeObject(o))
.Do(m => Debug.WriteLine("Sending message. {0}", new[] { m }))
.Select(m => new EventData(Encoding.UTF8.GetBytes(m)))
.Subscribe(d => client.SendAsync(d));
}
public AppModel()
{
var timer = Observable.Interval(TimeSpan.FromSeconds(1)).Select(_ => DateTime.Now);
var random = new Random();
FirstName = ObservableProperty.CreateSettable("Jiro");
LastName = ObservableProperty.CreateSettable("Mita");
FullName = ObservableProperty.CreateGetOnly(() => string.Format("{0} {1}", FirstName.Value, LastName.Value));
FirstName.Merge(LastName).Subscribe(FullName);
Message = FirstName.SelectToGetOnly(name => string.Format("Hello, {0}!", name));
CurrentTime = timer.ToGetOnly(DateTime.Now);
// 初期値をランダムに設定する場合。
//RandomNumber = CurrentTime.SelectToGetOnly(_ => random.Next(0, 3), true);
RandomNumber = timer.Select(_ => random.Next(0, 3)).ToGetOnly(0, true);
_Count = ObservableProperty.CreateSettable(0);
Count = _Count.ToGetOnlyMask();
RandomNumber.Subscribe(_ => _Count.Value++);
}
static StaticEventProcessor()
{
Message = ObservableProperty.CreateSettable <string>(null);
}
/// <summary>
/// Creates an instance of IObservable-based get-only property from the predecessor settable property.
/// </summary>
/// <typeparam name="TSource">The type of the source property.</typeparam>
/// <typeparam name="TResult">The type of the property.</typeparam>
/// <param name="source">The source property.</param>
/// <param name="selector">The transform function.</param>
/// <returns>An <see cref="IGetOnlyProperty<TResult>"/> object.</returns>
public static IGetOnlyProperty <TResult> SelectToGetOnly <TSource, TResult>(this ISettableProperty <TSource> source, Func <TSource, TResult> selector)
{
return(SelectToGetOnly(source, selector, false));
}
