MyMiniFXBook v1.0

using System;
using cAlgo.API;
using cAlgo.API.Internals;
using cAlgo.API.Indicators;
using cAlgo.Indicators;

namespace cAlgo
{
    [Indicator(IsOverlay = true, TimeZone = TimeZones.ChinaStandardTime, AccessRights = AccessRights.FullAccess)]
    public class MiniFXBook : Indicator
    {
        [Parameter("Stop loss Risk Percentage", DefaultValue = 5)]
        public int stopLossRiskPercent { get; set; }

        [Parameter("Stop loss in Pips", DefaultValue = 25)]
        public int stopLossInPips { get; set; }


        protected override void Initialize()
        {
            // No needs
        }

        public override void Calculate(int index)
        {
            double spread = 0;
            double costPerPip = 0;
            double positionSizeForRisk = 0;
            double gain = 0;
            double gainToday = 0;
            double totalGain = 0;
            double totalGainToday = 0;

            spread = Math.Round(Symbol.Spread / Symbol.PipSize, 5);

            foreach (var position in History)
            {
                gain += position.NetProfit;
                if (position.ClosingTime.DayOfYear == Time.DayOfYear)
                {
                    gainToday += position.NetProfit;
                }
            }

            totalGain = Math.Round((gain / (Account.Balance - gain)) * 100, 3);
            if (gainToday != 0)
            {
                totalGainToday = Math.Round((gainToday / (Account.Balance - gainToday)) * 100, 3);
            }

            costPerPip = (double)((int)(Symbol.PipValue * 10000000)) / 100;
            positionSizeForRisk = (Account.Balance * stopLossRiskPercent / 100) / (stopLossInPips * costPerPip);

            ChartObjects.DrawText("Account Summary", "Account Summary:", StaticPosition.TopLeft, Colors.MediumSpringGreen);
            string text = string.Format("\nSpread: {0,0} \nTotal gain: {1,0}% \nToday gain: {2,0}% \nBalance: {3,0} USD \nEquity: {4,0} USD \nProfit: {5,0} USD \nMaximum lot size: {6,0}", spread * 10, Math.Round(totalGain, 2), Math.Round(totalGainToday, 2), Account.Balance, Account.Equity, Math.Round(gain, 2), Math.Round(positionSizeForRisk, 2));
            ChartObjects.DrawText("Account Text", "\t" + text, StaticPosition.TopLeft, Colors.White);
        }
    }
}