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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/usf/Usf.Quantower.cs
+24 -27
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@@ -1,9 +1,11 @@
using System.Drawing;
using System.Runtime.CompilerServices;
using TradingPlatform.BusinessLayer;
namespace QuanTAlib;
public class UsfIndicator : Indicator, IWatchlistIndicator
[SkipLocalsInit]
public sealed class UsfIndicator : Indicator, IWatchlistIndicator
{
[InputParameter("Period", sortIndex: 1, 1, 2000, 1, 0)]
public int Period { get; set; } = 20;
@@ -14,52 +16,47 @@ public class UsfIndicator : Indicator, IWatchlistIndicator
[InputParameter("Show cold values", sortIndex: 21)]
public bool ShowColdValues { get; set; } = true;
private Usf? ma;
protected LineSeries? Series;
protected string? SourceName;
private int _warmupBarIndex = -1;
private Usf? _ma;
private readonly LineSeries? _series;
private string? _sourceName;
private Func<IHistoryItem, double>? _priceSelector;
public int MinHistoryDepths => Period;
public static int MinHistoryDepths => 0;
int IWatchlistIndicator.MinHistoryDepths => MinHistoryDepths;
public override string ShortName => $"USF {Period}:{SourceName}";
public override string ShortName => $"USF {Period}:{_sourceName}";
public override string SourceCodeLink => "https://github.com/mihakralj/QuanTAlib/blob/main/lib/trends/usf/Usf.Quantower.cs";
public UsfIndicator()
{
OnBackGround = true;
SeparateWindow = false;
SourceName = Source.ToString();
_sourceName = Source.ToString();
Name = "USF - Ultimate Smoother Filter";
Description = "Ehlers Ultimate Smoother Filter";
Series = new(name: $"USF {Period}", color: IndicatorExtensions.Averages, width: 2, style: LineStyle.Solid);
AddLineSeries(Series);
_series = new(name: $"USF {Period}", color: IndicatorExtensions.Averages, width: 2, style: LineStyle.Solid);
AddLineSeries(_series);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
protected override void OnInit()
{
ma = new Usf(Period);
SourceName = Source.ToString();
_warmupBarIndex = -1;
_ma = new Usf(Period);
_sourceName = Source.ToString();
_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);
if (args.Reason != UpdateReason.NewBar && args.Reason != UpdateReason.HistoricalBar)
return;
if (_warmupBarIndex < 0 && ma!.IsHot)
_warmupBarIndex = Count;
}
var item = HistoricalData[Count - 1, SeekOriginHistory.Begin];
TValue result = _ma!.Update(new TValue(item.TimeLeft.Ticks, _priceSelector!(item)), args.IsNewBar());
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);
_series!.SetMarker(0, Color.Transparent);
}
}