From 9149fad5677cb24ee55d143420417ca36399ad85 Mon Sep 17 00:00:00 2001
From: moshferatu <gitea@steveharris.sh>
Date: Wed, 27 Dec 2023 11:11:52 -0800
Subject: [PATCH] Add indicator for coloring bars according to trend as defined
 as closing above / below swing highs / lows

---
 indicators/Trend.cs | 164 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 164 insertions(+)
 create mode 100644 indicators/Trend.cs

diff --git a/indicators/Trend.cs b/indicators/Trend.cs
new file mode 100644
index 0000000..8a2ed28
--- /dev/null
+++ b/indicators/Trend.cs
@@ -0,0 +1,164 @@
+#region Using declarations
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Xml.Serialization;
+using NinjaTrader.Cbi;
+using NinjaTrader.Gui;
+using NinjaTrader.Gui.Chart;
+using NinjaTrader.Gui.SuperDom;
+using NinjaTrader.Gui.Tools;
+using NinjaTrader.Data;
+using NinjaTrader.NinjaScript;
+using NinjaTrader.Core.FloatingPoint;
+using NinjaTrader.NinjaScript.DrawingTools;
+#endregion
+
+//This namespace holds Indicators in this folder and is required. Do not change it. 
+namespace NinjaTrader.NinjaScript.Indicators
+{
+    public class Trend : Indicator
+    {
+        protected override void OnStateChange()
+        {
+            if (State == State.SetDefaults)
+            {
+                Description = @"Colors bars based on closes above previous highs or below previous lows";
+                Name = "Trend";
+                Calculate = Calculate.OnPriceChange;
+                IsOverlay = true;
+                DisplayInDataBox = true;
+                DrawOnPricePanel = true;
+                DrawHorizontalGridLines = true;
+                DrawVerticalGridLines = true;
+                PaintPriceMarkers = true;
+                ScaleJustification = ScaleJustification.Right;
+                IsSuspendedWhileInactive = true;
+                UptrendColor = Brushes.LimeGreen;
+                DowntrendColor = Brushes.Red;
+            }
+        }
+
+        protected override void OnBarUpdate()
+        {
+            if (CurrentBar < 2)
+                return;
+
+            if (IsFirstTickOfBar)
+            {
+                double previousHigh = High[2];
+                double previousLow = Low[2];
+                double currentClose = Close[1];
+
+                if (currentClose > previousHigh)
+                {
+                    BarBrushes[0] = UptrendColor;
+                    CandleOutlineBrushes[0] = UptrendColor;
+                }
+                else if (currentClose < previousLow)
+                {
+                    BarBrushes[0] = DowntrendColor;
+                    CandleOutlineBrushes[0] = DowntrendColor;
+                }
+                else
+                {
+                    BarBrushes[0] = BarBrushes[1];
+                    CandleOutlineBrushes[0] = CandleOutlineBrushes[1];
+                }
+            }
+        }
+
+        public override string DisplayName
+        {
+            get { return Name; }
+        }
+
+        [NinjaScriptProperty]
+        [XmlIgnore]
+        [Display(Name = "Uptrend Color", GroupName = "Trend", Order = 1)]
+        public Brush UptrendColor { get; set; }
+
+        [Browsable(false)]
+        public string UptrendColorSerialization
+        {
+            get { return Serialize.BrushToString(UptrendColor); }
+            set { UptrendColor = Serialize.StringToBrush(value); }
+        }
+
+        [NinjaScriptProperty]
+        [XmlIgnore]
+        [Display(Name = "Downtrend Color", GroupName = "Trend", Order = 2)]
+        public Brush DowntrendColor { get; set; }
+
+        [Browsable(false)]
+        public string DowntrendColorSerialization
+        {
+            get { return Serialize.BrushToString(DowntrendColor); }
+            set { DowntrendColor = Serialize.StringToBrush(value); }
+        }
+    }
+}
+
+#region NinjaScript generated code. Neither change nor remove.
+
+namespace NinjaTrader.NinjaScript.Indicators
+{
+    public partial class Indicator : NinjaTrader.Gui.NinjaScript.IndicatorRenderBase
+    {
+        private Trend[] cacheTrend;
+        public Trend Trend(Brush uptrendColor, Brush downtrendColor)
+        {
+            return Trend(Input, uptrendColor, downtrendColor);
+        }
+
+        public Trend Trend(ISeries<double> input, Brush uptrendColor, Brush downtrendColor)
+        {
+            if (cacheTrend != null)
+                for (int idx = 0; idx < cacheTrend.Length; idx++)
+                    if (cacheTrend[idx] != null && cacheTrend[idx].UptrendColor == uptrendColor && cacheTrend[idx].DowntrendColor == downtrendColor && cacheTrend[idx].EqualsInput(input))
+                        return cacheTrend[idx];
+            return CacheIndicator<Trend>(new Trend(){ UptrendColor = uptrendColor, DowntrendColor = downtrendColor }, input, ref cacheTrend);
+        }
+    }
+}
+
+namespace NinjaTrader.NinjaScript.MarketAnalyzerColumns
+{
+    public partial class MarketAnalyzerColumn : MarketAnalyzerColumnBase
+    {
+        public Indicators.Trend Trend(Brush uptrendColor, Brush downtrendColor)
+        {
+            return indicator.Trend(Input, uptrendColor, downtrendColor);
+        }
+
+        public Indicators.Trend Trend(ISeries<double> input , Brush uptrendColor, Brush downtrendColor)
+        {
+            return indicator.Trend(input, uptrendColor, downtrendColor);
+        }
+    }
+}
+
+namespace NinjaTrader.NinjaScript.Strategies
+{
+    public partial class Strategy : NinjaTrader.Gui.NinjaScript.StrategyRenderBase
+    {
+        public Indicators.Trend Trend(Brush uptrendColor, Brush downtrendColor)
+        {
+            return indicator.Trend(Input, uptrendColor, downtrendColor);
+        }
+
+        public Indicators.Trend Trend(ISeries<double> input , Brush uptrendColor, Brush downtrendColor)
+        {
+            return indicator.Trend(input, uptrendColor, downtrendColor);
+        }
+    }
+}
+
+#endregion