ninjatrader/indicators/SilverBullet.cs

#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 SilverBullet : Indicator
    {
        private const string RegularTradingHours = "US Equities RTH";

        private int RegularTradingHoursBars;

        private DateTime RangeStartTime;
        private DateTime RangeEndTime;

        private DateTime LastTradingDay;

        private class DailyRange
        {
            public DateTime Date { get; set; }
            public double High { get; set; }
            public double Low { get; set; }
        }

        private List<DailyRange> DailyRanges = new List<DailyRange>();
        private DailyRange CurrentDailyRange;

        protected override void OnStateChange()
        {
            if (State == State.SetDefaults)
            {
                Description = @"";
                Name = "Silver Bullet";
                Calculate = Calculate.OnPriceChange;
                IsOverlay = true;
                DisplayInDataBox = true;
                DrawOnPricePanel = true;
                DrawHorizontalGridLines = true;
                DrawVerticalGridLines = true;
                PaintPriceMarkers = true;
                ScaleJustification = ScaleJustification.Right;
                IsSuspendedWhileInactive = true;
            }
            else if (State == State.Configure)
            {
                RegularTradingHoursBars = 0;
                if (RegularTradingHours != Bars.TradingHours.Name)
                {
                    // TODO: Use whatever data series is currently on the chart.
                    AddDataSeries(Instrument.FullName, new BarsPeriod
                    {
                        BarsPeriodType = BarsPeriodType.Minute,
                        Value = 60
                    }, RegularTradingHours);
                    RegularTradingHoursBars = 1;
                }
            }
            else if (State == State.DataLoaded)
            {
                SessionIterator regularTradingHoursSession = new SessionIterator(BarsArray[RegularTradingHoursBars]);
                DateTime regularTradingHoursOpen = regularTradingHoursSession.GetTradingDayBeginLocal(regularTradingHoursSession.ActualTradingDayExchange);
                RangeStartTime = regularTradingHoursOpen.AddMinutes(-30); // 09:00 AM ET
                RangeEndTime = regularTradingHoursOpen.AddMinutes(30); // 10:00 AM ET
            }
            else if (State == State.Historical)
            {
                SetZOrder(-1); // Display behind bars on chart.
            }
        }

        protected override void OnBarUpdate()
        {
            if (BarsInProgress != 0)
                return;
            
            DateTime now = Times[BarsInProgress][0];

            if (now.Date != LastTradingDay)
            {
                LastTradingDay = now.Date;
                CurrentDailyRange = new DailyRange
                {
                    Date = LastTradingDay,
                    High = double.MinValue,
                    Low = double.MinValue
                };
                DailyRanges.Add(CurrentDailyRange);
            }

            if (now > (now.Date + RangeStartTime.TimeOfDay) && now <= (now.Date + RangeEndTime.TimeOfDay))
            {
                if (Highs[BarsInProgress][0] > CurrentDailyRange.High || CurrentDailyRange.High == double.MinValue)
                    CurrentDailyRange.High = Highs[BarsInProgress][0];
                if (Lows[BarsInProgress][0] < CurrentDailyRange.Low || CurrentDailyRange.Low == double.MinValue)
                    CurrentDailyRange.Low = Lows[BarsInProgress][0];
            }
        }

        protected override void OnRender(ChartControl chartControl, ChartScale chartScale)
        {
            base.OnRender(chartControl, chartScale);

            foreach (var dailyRange in DailyRanges)
            {
                if (dailyRange.High == double.MinValue || dailyRange.Low == double.MinValue)
                    continue;
                
                int startX = chartControl.GetXByTime(dailyRange.Date + RangeStartTime.TimeOfDay);
                int endX = chartControl.GetXByTime(dailyRange.Date + RangeEndTime.AddHours(1).TimeOfDay);

                int highY = chartScale.GetYByValue(dailyRange.High);
                RenderTarget.DrawLine(new SharpDX.Vector2(startX, highY), new SharpDX.Vector2(endX, highY), Brushes.LimeGreen.ToDxBrush(RenderTarget), 3);

                int lowY = chartScale.GetYByValue(dailyRange.Low);
                RenderTarget.DrawLine(new SharpDX.Vector2(startX, lowY), new SharpDX.Vector2(endX, lowY), Brushes.Red.ToDxBrush(RenderTarget), 3);
            }
        }

        public override string DisplayName
        {
            get { return Name; }
        }
    }
}

#region NinjaScript generated code. Neither change nor remove.

namespace NinjaTrader.NinjaScript.Indicators
{
    public partial class Indicator : NinjaTrader.Gui.NinjaScript.IndicatorRenderBase
    {
        private SilverBullet[] cacheSilverBullet;
        public SilverBullet SilverBullet()
        {
            return SilverBullet(Input);
        }

        public SilverBullet SilverBullet(ISeries<double> input)
        {
            if (cacheSilverBullet != null)
                for (int idx = 0; idx < cacheSilverBullet.Length; idx++)
                    if (cacheSilverBullet[idx] != null &&  cacheSilverBullet[idx].EqualsInput(input))
                        return cacheSilverBullet[idx];
            return CacheIndicator<SilverBullet>(new SilverBullet(), input, ref cacheSilverBullet);
        }
    }
}

namespace NinjaTrader.NinjaScript.MarketAnalyzerColumns
{
    public partial class MarketAnalyzerColumn : MarketAnalyzerColumnBase
    {
        public Indicators.SilverBullet SilverBullet()
        {
            return indicator.SilverBullet(Input);
        }

        public Indicators.SilverBullet SilverBullet(ISeries<double> input )
        {
            return indicator.SilverBullet(input);
        }
    }
}

namespace NinjaTrader.NinjaScript.Strategies
{
    public partial class Strategy : NinjaTrader.Gui.NinjaScript.StrategyRenderBase
    {
        public Indicators.SilverBullet SilverBullet()
        {
            return indicator.SilverBullet(Input);
        }

        public Indicators.SilverBullet SilverBullet(ISeries<double> input )
        {
            return indicator.SilverBullet(input);
        }
    }
}

#endregion