adding missing validations

2026-08-20 03:28:05 +00:00 · 2026-02-26 09:59:44 -08:00
parent 467a8c1cef
commit 9ab37c1200
231 changed files with 60015 additions and 302 deletions
@@ -0,0 +1,65 @@
+using System.Drawing;
+using System.Runtime.CompilerServices;
+using TradingPlatform.BusinessLayer;
+
+namespace QuanTAlib;
+
+[SkipLocalsInit]
+public sealed class DoscIndicator : Indicator, IWatchlistIndicator
+{
+    [InputParameter("RSI Period", sortIndex: 1, 1, 500, 1, 0)]
+    public int RsiPeriod { get; set; } = 14;
+
+    [InputParameter("EMA1 Period", sortIndex: 2, 1, 500, 1, 0)]
+    public int Ema1Period { get; set; } = 5;
+
+    [InputParameter("EMA2 Period", sortIndex: 3, 1, 500, 1, 0)]
+    public int Ema2Period { get; set; } = 3;
+
+    [InputParameter("Signal Period", sortIndex: 4, 1, 500, 1, 0)]
+    public int SigPeriod { get; set; } = 9;
+
+    [IndicatorExtensions.DataSourceInput]
+    public SourceType Source { get; set; } = SourceType.Close;
+
+    [InputParameter("Show cold values", sortIndex: 21)]
+    public bool ShowColdValues { get; set; } = true;
+
+    private Dosc _ma = null!;
+    private readonly LineSeries _series;
+    private string _sourceName = null!;
+    private Func<IHistoryItem, double> _priceSelector = null!;
+
+    public static int MinHistoryDepths => 0;
+    int IWatchlistIndicator.MinHistoryDepths => MinHistoryDepths;
+
+    public override string ShortName => $"DOSC {RsiPeriod},{Ema1Period},{Ema2Period},{SigPeriod}:{_sourceName}";
+    public override string SourceCodeLink => "https://github.com/mihakralj/QuanTAlib/blob/main/lib/oscillators/dosc/Dosc.Quantower.cs";
+
+    public DoscIndicator()
+    {
+        OnBackGround = true;
+        SeparateWindow = true;
+        _sourceName = Source.ToString();
+        Name = "DOSC - Derivative Oscillator";
+        Description = "Four-stage pipeline: Wilder RSI → EMA1 → EMA2 (double-smooth) → SMA signal. DOSC = EMA2 - Signal.";
+        _series = new LineSeries(name: $"DOSC", color: Color.Yellow, width: 2, style: LineStyle.Solid);
+        AddLineSeries(_series);
+    }
+
+    protected override void OnInit()
+    {
+        _ma = new Dosc(RsiPeriod, Ema1Period, Ema2Period, SigPeriod);
+        _sourceName = Source.ToString();
+        _priceSelector = Source.GetPriceSelector();
+        base.OnInit();
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    protected override void OnUpdate(UpdateArgs args)
+    {
+        var item = HistoricalData[Count - 1, SeekOriginHistory.Begin];
+        TValue result = _ma.Update(new TValue(item.TimeLeft.Ticks, _priceSelector(item)), isNew: args.IsNewBar());
+        _series.SetValue(result.Value, _ma.IsHot, ShowColdValues);
+    }
+}