Initial MQL5 EA Project

2026-05-27 12:32:26 -04:00
commit 2682cfdca1
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+//+------------------------------------------------------------------+
+//| Utilities.mqh - Helper utility functions                          |
+//| Price normalization, lot normalization, etc.                     |
+//+------------------------------------------------------------------+
+
+#ifndef __UTILITIES_MQH__
+#define __UTILITIES_MQH__
+
+class CUtilities
+{
+public:
+   // Normalize price to bid/ask
+   static double NormalizePrice(const string symbol, double price)
+   {
+      double point = SymbolInfoDouble(symbol, SYMBOL_POINT);
+      int digits = GetDigits(symbol);
+      return NormalizeDouble(price, digits);
+   }
+
+   // Normalize lot size to contract size step
+   static double NormalizeLot(const string symbol, double lot)
+   {
+      double min_lot = SymbolInfoDouble(symbol, SYMBOL_VOLUME_MIN);
+      double max_lot = SymbolInfoDouble(symbol, SYMBOL_VOLUME_MAX);
+      double lot_step = SymbolInfoDouble(symbol, SYMBOL_VOLUME_STEP);
+      
+      // Apply limits
+      if(lot < min_lot) lot = min_lot;
+      if(lot > max_lot) lot = max_lot;
+      
+      // Round to step
+      lot = MathFloor(lot / lot_step) * lot_step;
+      
+      return NormalizeDouble(lot, 2);
+   }
+
+   // Convert points to price distance
+   static double PointsToPrice(const string symbol, int points)
+   {
+      double point = SymbolInfoDouble(symbol, SYMBOL_POINT);
+      return (double)points * point;
+   }
+
+   // Convert price distance to points
+   static int PriceToPoints(const string symbol, double price_distance)
+   {
+      double point = SymbolInfoDouble(symbol, SYMBOL_POINT);
+      return (int)(price_distance / point);
+   }
+
+   // Get point value
+   static double GetPoint(const string symbol)
+   {
+      return SymbolInfoDouble(symbol, SYMBOL_POINT);
+   }
+
+   // Get digits
+   static int GetDigits(const string symbol)
+   {
+      long digits = SymbolInfoInteger(symbol, SYMBOL_DIGITS);
+      if(digits < 0)
+         digits = 0;
+      if(digits > 255)
+         digits = 255;
+      return (int)digits;
+   }
+
+   // Safe double comparison with precision
+   static bool DoubleEquals(double a, double b, double tolerance = 0.00001)
+   {
+      return MathAbs(a - b) < tolerance;
+   }
+
+   // Get contract size (lot multiplier)
+   static double GetContractSize(const string symbol)
+   {
+      return SymbolInfoDouble(symbol, SYMBOL_TRADE_CONTRACT_SIZE);
+   }
+};
+
+#endif //__UTILITIES_MQH__