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2026-08-07 09:37:46 +00:00 · 2025-09-30 10:14:34 +02:00
parent 6b8b23754c
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+//+------------------------------------------------------------------+
+//|                                           Holt_Oscillator_Pro.mq5|
+//|                                          Copyright 2025, xxxxxxxx|
+//+------------------------------------------------------------------+
+#property copyright "Copyright 2025, xxxxxxxx"
+#property version   "2.01" // Final unified architecture
+#property description "Holt's Trend Oscillator. Shows the smoothed trend component."
+#property description "Supports Standard and Heikin Ashi price sources."
+
+#property indicator_separate_window
+#property indicator_buffers 1
+#property indicator_plots   1
+#property indicator_level1 0.0
+#property indicator_levelstyle STYLE_DOT
+#property indicator_levelcolor clrGray
+
+//--- Include the calculator engine ---
+#include <MyIncludes\Holt_Oscillator_Calculator.mqh>
+
+//--- Plot 1: Holt Trend Oscillator
+#property indicator_label1  "Holt Trend"
+#property indicator_type1   DRAW_HISTOGRAM
+#property indicator_color1  clrSeaGreen, clrTomato
+#property indicator_style1  STYLE_SOLID
+#property indicator_width1  2
+
+//--- Custom Enum for Price Source, including Heikin Ashi ---
+enum ENUM_APPLIED_PRICE_HA_ALL
+  {
+//--- Heikin Ashi Prices (negative values for easy identification)
+   PRICE_HA_CLOSE    = -1,
+   PRICE_HA_OPEN     = -2,
+   PRICE_HA_HIGH     = -3,
+   PRICE_HA_LOW      = -4,
+   PRICE_HA_MEDIAN   = -5,
+   PRICE_HA_TYPICAL  = -6,
+   PRICE_HA_WEIGHTED = -7,
+//--- Standard Prices (using built-in ENUM_APPLIED_PRICE values)
+   PRICE_CLOSE_STD   = PRICE_CLOSE,
+   PRICE_OPEN_STD    = PRICE_OPEN,
+   PRICE_HIGH_STD    = PRICE_HIGH,
+   PRICE_LOW_STD     = PRICE_LOW,
+   PRICE_MEDIAN_STD  = PRICE_MEDIAN,
+   PRICE_TYPICAL_STD = PRICE_TYPICAL,
+   PRICE_WEIGHTED_STD= PRICE_WEIGHTED
+  };
+
+//--- Input Parameters ---
+input int                       InpPeriod      = 20;
+input double                    InpAlpha       = 0.1;
+input double                    InpBeta        = 0.05;
+input ENUM_APPLIED_PRICE_HA_ALL InpSourcePrice = PRICE_CLOSE_STD;
+
+//--- Indicator Buffers ---
+double    BufferOscillator[];
+
+//--- Global calculator object (as a base class pointer) ---
+CHoltOscillatorCalculator *g_calculator;
+
+//+------------------------------------------------------------------+
+//| Custom indicator initialization function.                        |
+//+------------------------------------------------------------------+
+int OnInit()
+  {
+   SetIndexBuffer(0, BufferOscillator, INDICATOR_DATA);
+   ArraySetAsSeries(BufferOscillator, false);
+
+   if(InpSourcePrice <= PRICE_HA_CLOSE)
+     {
+      g_calculator = new CHoltOscillatorCalculator_HA();
+      IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("Holt Osc HA(%d)", InpPeriod));
+     }
+   else
+     {
+      g_calculator = new CHoltOscillatorCalculator_Std();
+      IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("Holt Osc(%d)", InpPeriod));
+     }
+
+   if(CheckPointer(g_calculator) == POINTER_INVALID || !g_calculator.Init(InpPeriod, InpAlpha, InpBeta))
+     {
+      Print("Failed to initialize Holt Oscillator Calculator.");
+      return(INIT_FAILED);
+     }
+
+   PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, 2);
+   IndicatorSetInteger(INDICATOR_DIGITS, _Digits+2);
+
+   return(INIT_SUCCEEDED);
+  }
+
+//+------------------------------------------------------------------+
+//| Custom indicator deinitialization function.                      |
+//+------------------------------------------------------------------+
+void OnDeinit(const int reason)
+  {
+   if(CheckPointer(g_calculator) != POINTER_INVALID)
+      delete g_calculator;
+  }
+
+//+------------------------------------------------------------------+
+//| Custom indicator iteration function.                             |
+//+------------------------------------------------------------------+
+int OnCalculate(const int rates_total, const int, const datetime&[], const double &open[], const double &high[], const double &low[], const double &close[], const long&[], const long&[], const int&[])
+  {
+   if(CheckPointer(g_calculator) == POINTER_INVALID)
+      return 0;
+
+   ENUM_APPLIED_PRICE price_type;
+   if(InpSourcePrice <= PRICE_HA_CLOSE)
+      price_type = (ENUM_APPLIED_PRICE)(-(int)InpSourcePrice);
+   else
+      price_type = (ENUM_APPLIED_PRICE)InpSourcePrice;
+
+   g_calculator.Calculate(rates_total, price_type, open, high, low, close, BufferOscillator);
+
+   return(rates_total);
+  }
+//+------------------------------------------------------------------+
+//+------------------------------------------------------------------+