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https://github.com/softwaredevelop/mql5.git
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Toh4iem9
111 lines
4.2 KiB
Plaintext
111 lines
4.2 KiB
Plaintext
//+------------------------------------------------------------------+
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//| HMA_Pro.mq5|
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//| Copyright 2025, xxxxxxxx|
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2025, xxxxxxxx"
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#property version "4.10" // Optimized for incremental calculation
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#property description "Professional Hull Moving Average (HMA) with selectable"
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#property description "price source (Standard and Heikin Ashi)."
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//--- Indicator Window and Plot Properties ---
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#property indicator_chart_window
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#property indicator_buffers 1
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#property indicator_plots 1
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//--- Plot 1: HMA line
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#property indicator_label1 "HMA"
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#property indicator_type1 DRAW_LINE
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#property indicator_color1 clrDeepPink
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#property indicator_style1 STYLE_SOLID
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#property indicator_width1 1
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//--- Include the calculator engine ---
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#include <MyIncludes\HMA_Calculator.mqh>
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//--- Input Parameters ---
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input int InpPeriodHMA = 14;
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input ENUM_APPLIED_PRICE_HA_ALL InpSourcePrice = PRICE_CLOSE_STD;
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//--- Indicator Buffers ---
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double BufferHMA[];
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//--- Global calculator object (as a base class pointer) ---
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CHMACalculator *g_calculator;
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//+------------------------------------------------------------------+
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//| Custom indicator initialization function. |
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//+------------------------------------------------------------------+
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int OnInit()
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{
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//--- Map the buffer and set as non-timeseries
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SetIndexBuffer(0, BufferHMA, INDICATOR_DATA);
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ArraySetAsSeries(BufferHMA, false);
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//--- Dynamically create the appropriate calculator instance
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if(InpSourcePrice <= PRICE_HA_CLOSE) // Heikin Ashi source selected
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{
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g_calculator = new CHMACalculator_HA();
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IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("HMA HA(%d)", InpPeriodHMA));
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}
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else // Standard price source selected
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{
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g_calculator = new CHMACalculator();
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IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("HMA(%d)", InpPeriodHMA));
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}
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//--- Check if creation was successful and initialize
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if(CheckPointer(g_calculator) == POINTER_INVALID || !g_calculator.Init(InpPeriodHMA))
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{
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Print("Failed to create or initialize HMA Calculator object.");
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return(INIT_FAILED);
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}
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//--- Set indicator display properties
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IndicatorSetInteger(INDICATOR_DIGITS, _Digits);
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int period_sqrt = (int)MathMax(1, MathRound(MathSqrt(InpPeriodHMA)));
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PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, InpPeriodHMA + period_sqrt - 2);
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return(INIT_SUCCEEDED);
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}
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//+------------------------------------------------------------------+
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//| Custom indicator deinitialization function. |
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//+------------------------------------------------------------------+
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void OnDeinit(const int reason)
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{
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//--- Free the calculator object to prevent memory leaks
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if(CheckPointer(g_calculator) != POINTER_INVALID)
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delete g_calculator;
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}
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//+------------------------------------------------------------------+
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//| Custom indicator calculation function |
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//+------------------------------------------------------------------+
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int OnCalculate(const int rates_total,
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const int prev_calculated, // <--- Now used!
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const datetime &time[],
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const double &open[],
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const double &high[],
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const double &low[],
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const double &close[],
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const long &tick_volume[],
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const long &volume[],
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const int &spread[])
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{
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if(CheckPointer(g_calculator) == POINTER_INVALID)
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return 0;
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ENUM_APPLIED_PRICE price_type;
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if(InpSourcePrice <= PRICE_HA_CLOSE)
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price_type = (ENUM_APPLIED_PRICE)(-(int)InpSourcePrice);
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else
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price_type = (ENUM_APPLIED_PRICE)InpSourcePrice;
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//--- Delegate calculation with prev_calculated optimization
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g_calculator.Calculate(rates_total, prev_calculated, price_type, open, high, low, close, BufferHMA);
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return(rates_total);
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}
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//+------------------------------------------------------------------+
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//+------------------------------------------------------------------+
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