feat: add 8 new indicators with full integration

New indicators: - HWC (Holt-Winters Channel) — channels, 27 tests - VWMACD (Volume-Weighted MACD) — momentum, 38 tests - Squeeze Pro — oscillators, 69 tests - BW_MFI (Bill Williams MFI) — oscillators - DSTOCH (Double Stochastic) — oscillators - ATRSTOP (ATR Trailing Stop) — reversals - VSTOP (Volatility Stop) — reversals - Convexity (Beta Convexity) — statistics, 23 tests Integration: - Python bridge: Exports.cs, _bridge.py, wrapper modules - Documentation: _sidebar.md, _index.md pages, SPEC.md - All analyzer warnings fixed (MA0074, xUnit2013, S2699) Build: 0 warnings, 0 errors | Tests: 15,933 passed, 0 failed
2026-08-25 22:08:05 +00:00 · 2026-03-17 08:35:29 -07:00
parent 6f0a339c9b
commit 15f4bb90f3
71 changed files with 10194 additions and 44 deletions
@@ -0,0 +1,61 @@
+using System.Drawing;
+using System.Runtime.CompilerServices;
+using TradingPlatform.BusinessLayer;
+
+namespace QuanTAlib;
+
+[SkipLocalsInit]
+public sealed class BwMfiIndicator : Indicator, IWatchlistIndicator
+{
+    [InputParameter("Show cold values", sortIndex: 21)]
+    public bool ShowColdValues { get; set; } = true;
+
+    private BwMfi _bwMfi = null!;
+    private readonly LineSeries _mfiLine;
+    private readonly LineSeries _zoneLine;
+
+    public static int MinHistoryDepths => 1;
+    int IWatchlistIndicator.MinHistoryDepths => MinHistoryDepths;
+
+    public override string ShortName => "BW_MFI";
+    public override string SourceCodeLink => "https://github.com/mihakralj/QuanTAlib/blob/main/lib/oscillators/bw_mfi/BwMfi.Quantower.cs";
+
+    public BwMfiIndicator()
+    {
+        OnBackGround = true;
+        SeparateWindow = true;
+        Name = "BW_MFI - Bill Williams Market Facilitation Index";
+        Description = "Bill Williams' MFI with 4-zone classification. Zone 1 (Green): trend continuation. Zone 2 (Fade): fading. Zone 3 (Fake): unsupported. Zone 4 (Squat): breakout imminent.";
+
+        _mfiLine = new LineSeries("BW_MFI", Color.Cyan, 2, LineStyle.Histogramm);
+        _zoneLine = new LineSeries("Zone", Color.Gray, 1, LineStyle.Solid) { Visible = false };
+        AddLineSeries(_mfiLine);
+        AddLineSeries(_zoneLine);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    protected override void OnInit()
+    {
+        _bwMfi = new BwMfi();
+        base.OnInit();
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    protected override void OnUpdate(UpdateArgs args)
+    {
+        _ = _bwMfi.Update(this.GetInputBar(args), args.IsNewBar());
+
+        // Zone-based coloring
+        Color barColor = _bwMfi.Zone switch
+        {
+            1 => Color.Green,       // Green zone
+            2 => Color.SaddleBrown, // Fade zone
+            3 => Color.Blue,        // Fake zone
+            4 => Color.Fuchsia,     // Squat zone
+            _ => Color.Gray         // First bar
+        };
+        _mfiLine.SetValue(_bwMfi.Last.Value, _bwMfi.IsHot, ShowColdValues);
+        _mfiLine.SetMarker(0, barColor);
+        _zoneLine.SetValue(_bwMfi.Zone, _bwMfi.IsHot, ShowColdValues);
+    }
+}