hiddentrail_mt4.mqh

#ifndef HIDDENTRAIL_MT4_MQH
#define HIDDENTRAIL_MT4_MQH

#property strict
#property version   "2.00"
#property description "Pure MQL4 Code. Do not compile in MT5."

enum ENUM_BASKET_MODE {
   SINGLE_TRAIL_PROFIT,     // Individual Order Trailing
   BASKET_SYMBOL,           // Current Symbol Basket
   BASKET_ACCOUNT_EQUITY    // Whole Account Basket
};

class CHiddenTrailManager {
private:

   int               m_magic;
   int               m_slippagePoints;
   int               m_atrPeriod;
   double            m_atrMultiplier;
   int               m_trailStartPips;
   int               m_timeframe;     // PERIOD_M1, PERIOD_H1 etc.
   double            m_accTrailStart;
   double            m_accTrailDrop;
   ENUM_BASKET_MODE  m_mode;

   int               m_prevTrend;
   double            m_accountPeak;
   int               m_lastOrdersTotal;
   string            m_prefix;

   double GetPipValue() {
      double point = MarketInfo(Symbol(), MODE_POINT);
      int digits = (int)MarketInfo(Symbol(), MODE_DIGITS);
      return (digits == 3 || digits == 5) ? point * 10 : point;
   }

   bool IsOrderManaged(int index) {

      if (OrderMagicNumber() == m_magic) return(true);
      if (m_magic == -1) return(true);               // All trades
      if (m_magic == 0 && OrderMagicNumber() == 0) return(true); // Manual trades
      return(false);
   }

   void CalculateSupertrend(double &atr, double &hl2, int &trend, double &band) {
      atr = iATR(NULL, m_timeframe, m_atrPeriod, 0);
      hl2 = (iHigh(NULL, m_timeframe, 0) + iLow(NULL, m_timeframe, 0)) / 2.0;

      double atr1   = iATR(NULL, m_timeframe, m_atrPeriod, 1);
      double close1 = iClose(NULL, m_timeframe, 1);
      double close0 = iClose(NULL, m_timeframe, 0);
      double hl2_1  = (iHigh(NULL, m_timeframe, 1) + iLow(NULL, m_timeframe, 1)) / 2.0;

      double upper0 = hl2  + m_atrMultiplier * atr;
      double lower0 = hl2  - m_atrMultiplier * atr;
      double upper1 = hl2_1 + m_atrMultiplier * atr1;
      double lower1 = hl2_1 - m_atrMultiplier * atr1;

      trend = m_prevTrend;
      if (close1 <= upper1 && close0 > upper0) trend = 1;
      else if (close1 >= lower1 && close0 < lower0) trend = -1;
      else if (trend == 0) trend = (close0 >= hl2) ? 1 : -1;

      m_prevTrend = trend;
      band = (trend == 1) ? lower0 : upper0;
   }

   void UpdateObject(string name, string type, double price, string text, color clr) {
      datetime time_anchor = iTime(NULL, 0, 10) + PeriodSeconds() * 20;
      datetime time_current = iTime(NULL, 0, 0) + PeriodSeconds() * 10;

      if (ObjectFind(name) < 0) {  // Create new
         bool created = false;
         if (type == "HLINE") {
            created = ObjectCreate(name, OBJ_HLINE, 0, 0, price);
         } else if (type == "TEXT") {
            created = ObjectCreate(name, OBJ_TEXT, 0, time_anchor, price);
         }

         if (created) {
            ObjectSet(name, OBJPROP_COLOR, clr);
            ObjectSet(name, OBJPROP_STYLE, STYLE_DASH);
            ObjectSet(name, OBJPROP_WIDTH, (type == "HLINE") ? 2 : 1);

            if (type == "TEXT") {
               ObjectSetText(name, text, 10, "Arial", clr);
            }
         } else {
            Print("ObjectCreate failed: ", name, " Error=", GetLastError());
         }
      } else {  // Update existing
         if (type == "HLINE") {
            ObjectMove(name, 0, 0, price);
         } else if (type == "TEXT") {
            ObjectMove(name, 0, time_current, price);
            if (ObjectGetString(0, name, OBJPROP_TEXT) != text) {
               ObjectSetText(name, text, 10, "Arial", clr);
            }
         }
      }
   }

   void ManageAccountEquity() {
      double totalProfit = 0;
      int count = 0;

      for(int i = OrdersTotal() - 1; i >= 0; i--) {
         if(OrderSelect(i, SELECT_BY_POS, MODE_TRADES)) {
            bool magicMatch = (m_magic == -1) || (m_magic == 0 && OrderMagicNumber() == 0) || (OrderMagicNumber() == m_magic);
            if(magicMatch) {
               totalProfit += OrderProfit() + OrderSwap();
               count++;
            }
         }
      }

      if(count == 0) {
         ObjectDelete(0, m_prefix + "ACC_TXT");
         m_accountPeak = 0;
         return;
      }

      string txt = m_prefix + "ACC_TXT";

      string statusText = "ACCOUNT BASKET | Profit: $" + DoubleToString(totalProfit, 2) + " | Peak: $" + DoubleToString(m_accountPeak, 2);
      UpdateObject(txt, "TEXT", 0, statusText, clrGold);

      ObjectSetInteger(0, txt, OBJPROP_CORNER, CORNER_LEFT_UPPER);
      ObjectSetInteger(0, txt, OBJPROP_XDISTANCE, 10);
      ObjectSetInteger(0, txt, OBJPROP_YDISTANCE, 20);

      if(totalProfit > m_accTrailStart) {
         if(totalProfit > m_accountPeak) m_accountPeak = totalProfit;
         if(totalProfit <= (m_accountPeak - m_accTrailDrop)) {
            Print("ACCOUNT BASKET HIT. Closing All.");
            CloseManagedOrders();
         }
      }
   }

   void ManageSymbolBasket(double stBand, int stTrend) {
      double totalLots = 0;
      double weightedSumPrices = 0;

      for(int i = OrdersTotal() - 1; i >= 0; i--) {
         if(OrderSelect(i, SELECT_BY_POS, MODE_TRADES)) {
            if(OrderSymbol() == Symbol() && IsOrderManaged(i)) {
               double lots = OrderLots();
               int type = OrderType();
               double signedLots = (type == OP_BUY) ? lots : -lots;
               totalLots += signedLots;
               weightedSumPrices += OrderOpenPrice() * signedLots;
            }

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