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Refactor IndicatorExtensions: Remove unused methods and optimize price retrieval

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This commit is contained in:
Miha Kralj
2025-12-24 13:50:19 -08:00
parent c47b106597
commit 8917575994
101 changed files with 1311 additions and 450292 deletions
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lib/trends/dema/Dema.Quantower.cs
+10 -17
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@@ -1,8 +1,10 @@
using System.Drawing;
using System.Runtime.CompilerServices;
using TradingPlatform.BusinessLayer;
namespace QuanTAlib;
[SkipLocalsInit]
public class DemaIndicator : Indicator, IWatchlistIndicator
{
[InputParameter("Period", sortIndex: 1, 1, 1000, 1, 0)]
@@ -17,9 +19,9 @@ public class DemaIndicator : Indicator, IWatchlistIndicator
private Dema? ma;
protected LineSeries? Series;
protected string? SourceName;
private int _warmupBarIndex = -1;
private Func<IHistoryItem, double>? _priceSelector;
public int MinHistoryDepths => Period;
public static int MinHistoryDepths => 0;
int IWatchlistIndicator.MinHistoryDepths => MinHistoryDepths;
public override string ShortName => $"DEMA {Period}:{SourceName}";
@@ -40,26 +42,17 @@ public class DemaIndicator : Indicator, IWatchlistIndicator
{
ma = new Dema(Period);
SourceName = Source.ToString();
_warmupBarIndex = -1;
_priceSelector = Source.GetPriceSelector();
base.OnInit();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
protected override void OnUpdate(UpdateArgs args)
{
TValue input = this.GetInputValue(args, Source);
bool isNew = args.Reason == UpdateReason.NewBar || args.Reason == UpdateReason.HistoricalBar;
TValue result = ma!.Update(input, isNew);
Series!.SetValue(result.Value);
Series!.SetMarker(0, Color.Transparent);
var item = HistoricalData[Count - 1, SeekOriginHistory.Begin];
TValue result = ma!.Update(new TValue(item.TimeLeft.Ticks, _priceSelector!(item)), isNew: args.IsNewBar());
if (_warmupBarIndex < 0 && ma!.IsHot)
_warmupBarIndex = Count;
}
public override void OnPaintChart(PaintChartEventArgs args)
{
base.OnPaintChart(args);
int warmupPeriod = _warmupBarIndex > 0 ? _warmupBarIndex : Count;
this.PaintSmoothCurve(args, Series!, warmupPeriod, showColdValues: ShowColdValues, tension: 0.2);
Series!.SetValue(result.Value, ma.IsHot, ShowColdValues);
}
}