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2026-07-27 20:47:44 +00:00 · 2025-08-15 16:34:12 +02:00
parent 6410ec4a3d
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+//+------------------------------------------------------------------+
+//|                                     Supertrend_HeikenAshi.mq5    |
+//|                      Copyright 2025, xxxxxxxx                    |
+//|                                                                  |
+//+------------------------------------------------------------------+
+#property copyright "Copyright 2025, xxxxxxxx"
+#property link      ""
+#property version   "1.00"
+#property description "Supertrend Indicator on Heiken Ashi data"
+
+#include <MyIncludes\HA_Tools.mqh>
+
+//--- Indicator Window and Plot Properties ---
+#property indicator_chart_window
+#property indicator_buffers 5 // Supertrend, Color, ATR, UpperBand, LowerBand
+#property indicator_plots   1
+
+//--- Plot 1: Supertrend line
+#property indicator_label1  "HA_Supertrend"
+#property indicator_type1   DRAW_COLOR_LINE
+#property indicator_color1  clrLimeGreen, clrTomato
+#property indicator_style1  STYLE_SOLID
+#property indicator_width1  2
+
+//--- Input Parameters ---
+input int    InpAtrPeriod = 10;
+input double InpFactor    = 3.0;
+
+//--- Indicator Buffers ---
+double    BufferSupertrend[];
+double    BufferColor[];
+double    BufferATR[];
+double    BufferUpperBand[];
+double    BufferLowerBand[];
+
+//--- Global Objects and Variables ---
+int              ExtAtrPeriod;
+double           ExtFactor;
+int              handle_atr;
+CHA_Calculator   g_ha_calculator;
+
+//+------------------------------------------------------------------+
+//| Custom indicator initialization function.                        |
+//+------------------------------------------------------------------+
+void OnInit()
+  {
+   ExtAtrPeriod = (InpAtrPeriod < 1) ? 1 : InpAtrPeriod;
+   ExtFactor    = (InpFactor <= 0) ? 3.0 : InpFactor;
+
+   SetIndexBuffer(0, BufferSupertrend, INDICATOR_DATA);
+   SetIndexBuffer(1, BufferColor,      INDICATOR_COLOR_INDEX);
+   SetIndexBuffer(2, BufferATR,        INDICATOR_CALCULATIONS);
+   SetIndexBuffer(3, BufferUpperBand,  INDICATOR_CALCULATIONS);
+   SetIndexBuffer(4, BufferLowerBand,  INDICATOR_CALCULATIONS);
+
+   ArraySetAsSeries(BufferSupertrend, false);
+   ArraySetAsSeries(BufferColor,      false);
+   ArraySetAsSeries(BufferATR,        false);
+   ArraySetAsSeries(BufferUpperBand,  false);
+   ArraySetAsSeries(BufferLowerBand,  false);
+
+// ATR is calculated on standard candles, as it measures true volatility
+   handle_atr = iATR(_Symbol, _Period, ExtAtrPeriod);
+   if(handle_atr == INVALID_HANDLE)
+      Print("Error creating iATR handle.");
+
+   IndicatorSetInteger(INDICATOR_DIGITS, _Digits);
+   PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, ExtAtrPeriod);
+   IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("HA_Supertrend(%d, %.1f)", ExtAtrPeriod, ExtFactor));
+  }
+
+//+------------------------------------------------------------------+
+//| Supertrend on Heiken Ashi calculation function.                  |
+//+------------------------------------------------------------------+
+int OnCalculate(const int rates_total,
+                const int prev_calculated,
+                const datetime &time[],
+                const double &open[],
+                const double &high[],
+                const double &low[],
+                const double &close[],
+                const long &tick_volume[],
+                const long &volume[],
+                const int &spread[])
+  {
+   if(rates_total < ExtAtrPeriod)
+      return(0);
+
+//--- STEP 1: Calculate Heiken Ashi bars
+   if(!g_ha_calculator.Calculate(rates_total, 0, open, high, low, close))
+      return(0);
+
+//--- STEP 2: Get ATR values
+   if(BarsCalculated(handle_atr) < rates_total)
+      return(0);
+   if(CopyBuffer(handle_atr, 0, 0, rates_total, BufferATR) <= 0)
+      return(0);
+
+//--- STEP 3: Main calculation loop
+   for(int i = 1; i < rates_total; i++)
+     {
+      double ha_hl2 = (g_ha_calculator.ha_high[i] + g_ha_calculator.ha_low[i]) / 2.0;
+
+      double upper_basic = ha_hl2 + (ExtFactor * BufferATR[i]);
+      double lower_basic = ha_hl2 - (ExtFactor * BufferATR[i]);
+
+      // Stair-step logic
+      if(upper_basic < BufferUpperBand[i-1] || g_ha_calculator.ha_close[i-1] > BufferUpperBand[i-1])
+         BufferUpperBand[i] = upper_basic;
+      else
+         BufferUpperBand[i] = BufferUpperBand[i-1];
+
+      if(lower_basic > BufferLowerBand[i-1] || g_ha_calculator.ha_close[i-1] < BufferLowerBand[i-1])
+         BufferLowerBand[i] = lower_basic;
+      else
+         BufferLowerBand[i] = BufferLowerBand[i-1];
+
+      // Trend direction
+      int trend = 0;
+      if(BufferSupertrend[i-1] == BufferUpperBand[i-1])
+         trend = (g_ha_calculator.ha_close[i] > BufferUpperBand[i]) ? 1 : -1;
+      else
+         trend = (g_ha_calculator.ha_close[i] < BufferLowerBand[i]) ? -1 : 1;
+
+      if(trend == 1) // Uptrend
+        {
+         BufferSupertrend[i] = BufferLowerBand[i];
+         BufferColor[i] = 0; // Green
+        }
+      else // Downtrend
+        {
+         BufferSupertrend[i] = BufferUpperBand[i];
+         BufferColor[i] = 1; // Red
+        }
+     }
+
+   return(rates_total);
+  }
+//+------------------------------------------------------------------+
+//+------------------------------------------------------------------+