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Toh4iem9
79 lines
3.5 KiB
Plaintext
79 lines
3.5 KiB
Plaintext
//+------------------------------------------------------------------+
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//| Holt_Calculator.mqh |
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//| Wrapper for the Holt_Engine to produce MA/Channel output.|
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//| Copyright 2025, xxxxxxxx |
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2025, xxxxxxxx"
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#include <MyIncludes\Holt_Engine.mqh>
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//--- Abstract base class for polymorphism
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class CHoltMACalculator
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{
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protected:
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//--- Dummy Buffers for unused outputs
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double m_dummy_trend[];
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double m_dummy_level[];
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public:
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virtual bool Init(int period, double alpha, double beta, int forecast_p)=0;
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virtual void Calculate(int rates_total, int prev_calculated, ENUM_APPLIED_PRICE price_type, const double &open[], const double &high[], const double &low[], const double &close[],
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double &forecast_out[], double &upper_band_out[], double &lower_band_out[])=0;
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};
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//--- Standard version
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class CHoltMACalculator_Std : public CHoltMACalculator
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{
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protected:
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CHoltEngine *m_engine;
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public:
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CHoltMACalculator_Std(void) { m_engine = new CHoltEngine(); }
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~CHoltMACalculator_Std(void) { if(CheckPointer(m_engine)!=POINTER_INVALID) delete m_engine; }
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virtual bool Init(int period, double alpha, double beta, int forecast_p) override { return m_engine.Init(period, alpha, beta, forecast_p); }
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virtual void Calculate(int rates_total, int prev_calculated, ENUM_APPLIED_PRICE price_type, const double &open[], const double &high[], const double &low[], const double &close[],
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double &forecast_out[], double &upper_band_out[], double &lower_band_out[]) override
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{
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if(CheckPointer(m_engine)==POINTER_INVALID)
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return;
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if(ArraySize(m_dummy_trend) != rates_total)
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{
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ArrayResize(m_dummy_trend, rates_total);
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ArrayResize(m_dummy_level, rates_total);
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}
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// Pass dummy buffers for trend and level
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m_engine.Calculate(rates_total, prev_calculated, price_type, open, high, low, close,
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forecast_out, m_dummy_trend, m_dummy_level, upper_band_out, lower_band_out);
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}
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};
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//--- HA version
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class CHoltMACalculator_HA : public CHoltMACalculator
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{
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protected:
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CHoltEngine *m_engine;
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public:
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CHoltMACalculator_HA(void) { m_engine = new CHoltEngine_HA(); }
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~CHoltMACalculator_HA(void) { if(CheckPointer(m_engine)!=POINTER_INVALID) delete m_engine; }
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virtual bool Init(int period, double alpha, double beta, int forecast_p) override { return m_engine.Init(period, alpha, beta, forecast_p); }
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virtual void Calculate(int rates_total, int prev_calculated, ENUM_APPLIED_PRICE price_type, const double &open[], const double &high[], const double &low[], const double &close[],
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double &forecast_out[], double &upper_band_out[], double &lower_band_out[]) override
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{
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if(CheckPointer(m_engine)==POINTER_INVALID)
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return;
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if(ArraySize(m_dummy_trend) != rates_total)
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{
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ArrayResize(m_dummy_trend, rates_total);
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ArrayResize(m_dummy_level, rates_total);
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}
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m_engine.Calculate(rates_total, prev_calculated, price_type, open, high, low, close,
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forecast_out, m_dummy_trend, m_dummy_level, upper_band_out, lower_band_out);
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}
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};
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//+------------------------------------------------------------------+
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