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Toh4iem9
93 lines
3.8 KiB
Plaintext
93 lines
3.8 KiB
Plaintext
//+------------------------------------------------------------------+
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//| Holt_Oscillator_Calculator.mqh|
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//| Wrapper for the Holt_Engine to produce Oscillator 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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//+==================================================================+
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//| CLASS: CHoltOscillatorCalculator |
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//+==================================================================+
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class CHoltOscillatorCalculator
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{
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protected:
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//--- Composition: Use the main Holt Engine
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CHoltEngine *m_engine;
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//--- Dummy Buffers for unused outputs
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double m_dummy_forecast[];
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double m_dummy_level[];
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double m_dummy_upper[];
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double m_dummy_lower[];
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public:
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CHoltOscillatorCalculator(void);
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virtual ~CHoltOscillatorCalculator(void);
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//--- Init now takes HA flag
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bool Init(int period, double alpha, double beta, bool use_ha);
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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 &osc_buffer[]);
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};
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//+------------------------------------------------------------------+
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//| Constructor |
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//+------------------------------------------------------------------+
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CHoltOscillatorCalculator::CHoltOscillatorCalculator(void) : m_engine(NULL)
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{
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}
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//+------------------------------------------------------------------+
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//| Destructor |
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//+------------------------------------------------------------------+
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CHoltOscillatorCalculator::~CHoltOscillatorCalculator(void)
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{
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if(CheckPointer(m_engine) != POINTER_INVALID)
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delete m_engine;
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}
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//+------------------------------------------------------------------+
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//| Init |
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//+------------------------------------------------------------------+
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bool CHoltOscillatorCalculator::Init(int period, double alpha, double beta, bool use_ha)
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{
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// Instantiate correct engine
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if(use_ha)
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m_engine = new CHoltEngine_HA();
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else
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m_engine = new CHoltEngine();
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// Initialize engine (Forecast period is dummy 1)
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return m_engine.Init(period, alpha, beta, 1);
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}
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//+------------------------------------------------------------------+
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//| Main Calculation |
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//+------------------------------------------------------------------+
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void CHoltOscillatorCalculator::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 &osc_buffer[])
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{
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if(CheckPointer(m_engine) == POINTER_INVALID)
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return;
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// Resize dummy buffers
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if(ArraySize(m_dummy_forecast) != rates_total)
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{
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ArrayResize(m_dummy_forecast, rates_total);
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ArrayResize(m_dummy_level, rates_total);
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ArrayResize(m_dummy_upper, rates_total);
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ArrayResize(m_dummy_lower, rates_total);
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}
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// Calculate Holt (Incremental)
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// The engine handles its own incremental logic
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// We pass osc_buffer to the 'trend_out' parameter
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m_engine.Calculate(rates_total, prev_calculated, price_type, open, high, low, close,
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m_dummy_forecast, osc_buffer, m_dummy_level, m_dummy_upper, m_dummy_lower);
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}
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//+------------------------------------------------------------------+
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//+------------------------------------------------------------------+
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