From 6b8b23754c0457e1acad7a74be8b007d6128e2a4 Mon Sep 17 00:00:00 2001
From: Toh4iem9 <Toh4iem9@forge.mql5.io>
Date: Tue, 30 Sep 2025 10:14:22 +0200
Subject: [PATCH] new files added

---
 .../MyIncludes/Holt_Oscillator_Calculator.mqh | 69 +++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 Include/MyIncludes/Holt_Oscillator_Calculator.mqh

diff --git a/Include/MyIncludes/Holt_Oscillator_Calculator.mqh b/Include/MyIncludes/Holt_Oscillator_Calculator.mqh
new file mode 100644
index 0000000..808efc7
--- /dev/null
+++ b/Include/MyIncludes/Holt_Oscillator_Calculator.mqh
@@ -0,0 +1,69 @@
+//+------------------------------------------------------------------+
+//|                                     Holt_Oscillator_Calculator.mqh|
+//|      Wrapper for the Holt_Engine to produce Oscillator output.   |
+//|                                        Copyright 2025, xxxxxxxx  |
+//+------------------------------------------------------------------+
+#property copyright "Copyright 2025, xxxxxxxx"
+
+#include <MyIncludes\Holt_Engine.mqh>
+
+//--- Base class for polymorphism
+class CHoltOscillatorCalculator
+  {
+public:
+   virtual bool      Init(int period, double alpha, double beta)=0;
+   virtual void      Calculate(int rates_total, ENUM_APPLIED_PRICE price_type, const double &open[], const double &high[], const double &low[], const double &close[], double &osc_buffer[])=0;
+  };
+
+//--- Standard version
+class CHoltOscillatorCalculator_Std : public CHoltOscillatorCalculator
+  {
+protected:
+   CHoltEngine       *m_engine;
+public:
+                     CHoltOscillatorCalculator_Std(void) { m_engine = new CHoltEngine(); }
+                    ~CHoltOscillatorCalculator_Std(void) { if(CheckPointer(m_engine)!=POINTER_INVALID) delete m_engine; }
+
+   virtual bool      Init(int period, double alpha, double beta) override { return m_engine.Init(period, alpha, beta, 1); } // Forecast period is not used
+   virtual void      Calculate(int rates_total, ENUM_APPLIED_PRICE price_type, const double &open[], const double &high[], const double &low[], const double &close[], double &osc_buffer[]) override
+     {
+      if(CheckPointer(m_engine)==POINTER_INVALID)
+         return;
+
+      double dummy_forecast[], dummy_level[], dummy_upper[], dummy_lower[];
+      ArrayResize(dummy_forecast, rates_total);
+      ArrayResize(dummy_level, rates_total);
+      ArrayResize(dummy_upper, rates_total);
+      ArrayResize(dummy_lower, rates_total);
+
+      // Pass the osc_buffer to the correct 'trend_out' parameter
+      m_engine.Calculate(rates_total, price_type, open, high, low, close, dummy_forecast, osc_buffer, dummy_level, dummy_upper, dummy_lower);
+     }
+  };
+
+//--- HA version
+class CHoltOscillatorCalculator_HA : public CHoltOscillatorCalculator
+  {
+protected:
+   CHoltEngine       *m_engine;
+public:
+                     CHoltOscillatorCalculator_HA(void) { m_engine = new CHoltEngine_HA(); }
+                    ~CHoltOscillatorCalculator_HA(void) { if(CheckPointer(m_engine)!=POINTER_INVALID) delete m_engine; }
+
+   virtual bool      Init(int period, double alpha, double beta) override { return m_engine.Init(period, alpha, beta, 1); } // Forecast period is not used
+   virtual void      Calculate(int rates_total, ENUM_APPLIED_PRICE price_type, const double &open[], const double &high[], const double &low[], const double &close[], double &osc_buffer[]) override
+     {
+      if(CheckPointer(m_engine)==POINTER_INVALID)
+         return;
+
+      double dummy_forecast[], dummy_level[], dummy_upper[], dummy_lower[];
+      ArrayResize(dummy_forecast, rates_total);
+      ArrayResize(dummy_level, rates_total);
+      ArrayResize(dummy_upper, rates_total);
+      ArrayResize(dummy_lower, rates_total);
+
+      // Pass the osc_buffer to the correct 'trend_out' parameter
+      m_engine.Calculate(rates_total, price_type, open, high, low, close, dummy_forecast, osc_buffer, dummy_level, dummy_upper, dummy_lower);
+     }
+  };
+//+------------------------------------------------------------------+