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2026-08-21 16:28:06 +00:00 · 2025-08-15 12:15:20 +02:00
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+//+------------------------------------------------------------------+
+//|                                        Gann_HiLo_HeikenAshi.mq5  |
+//|                      Copyright 2025, xxxxxxxx                    |
+//|                                                                  |
+//+------------------------------------------------------------------+
+#property copyright "Copyright 2025, xxxxxxxx"
+#property link      ""
+#property version   "1.00"
+#property description "Gann HiLo Activator on Heiken Ashi data with selectable MA"
+
+#include <MovingAverages.mqh>
+#include <MyIncludes\HA_Tools.mqh>
+
+//--- Indicator Window and Plot Properties ---
+#property indicator_chart_window
+#property indicator_buffers 5
+#property indicator_plots   1
+
+//--- Plot 1: Gann HiLo line
+#property indicator_label1  "HA_Gann_HiLo"
+#property indicator_type1   DRAW_COLOR_LINE
+#property indicator_color1  clrDodgerBlue, clrTomato
+#property indicator_style1  STYLE_SOLID
+#property indicator_width1  2
+
+//--- Input Parameters ---
+input int            InpPeriod   = 10;       // Period for High/Low averages
+input ENUM_MA_METHOD InpMAMethod = MODE_SMA; // Method for High/Low averages
+
+//--- Indicator Buffers ---
+double    BufferHA_GannHiLo[];
+double    BufferColor[];
+double    BufferHiAvg[];
+double    BufferLoAvg[];
+double    BufferTrend[];
+
+//--- Global Objects and Variables ---
+int              ExtPeriod;
+CHA_Calculator   g_ha_calculator;
+
+//+------------------------------------------------------------------+
+//| Custom indicator initialization function.                        |
+//+------------------------------------------------------------------+
+void OnInit()
+  {
+   ExtPeriod = (InpPeriod < 1) ? 1 : InpPeriod;
+
+   SetIndexBuffer(0, BufferHA_GannHiLo, INDICATOR_DATA);
+   SetIndexBuffer(1, BufferColor,       INDICATOR_COLOR_INDEX);
+   SetIndexBuffer(2, BufferHiAvg,       INDICATOR_CALCULATIONS);
+   SetIndexBuffer(3, BufferLoAvg,       INDICATOR_CALCULATIONS);
+   SetIndexBuffer(4, BufferTrend,       INDICATOR_CALCULATIONS);
+
+   ArraySetAsSeries(BufferHA_GannHiLo, false);
+   ArraySetAsSeries(BufferColor,       false);
+   ArraySetAsSeries(BufferHiAvg,       false);
+   ArraySetAsSeries(BufferLoAvg,       false);
+   ArraySetAsSeries(BufferTrend,       false);
+
+   IndicatorSetInteger(INDICATOR_DIGITS, _Digits);
+   PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, ExtPeriod - 1);
+   IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("HA_Gann_HiLo(%d)", ExtPeriod));
+  }
+
+//+------------------------------------------------------------------+
+//| Gann HiLo 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 < ExtPeriod)
+      return(0);
+
+//--- STEP 1: Calculate Heiken Ashi bars using our toolkit
+   if(!g_ha_calculator.Calculate(rates_total, 0, open, high, low, close))
+      return(0);
+
+//--- STEP 2: Calculate the two moving averages on HA High and HA Low
+   for(int i = 1; i < rates_total; i++)
+     {
+      if(i < ExtPeriod - 1)
+         continue;
+
+      switch(InpMAMethod)
+        {
+         case MODE_EMA:
+            if(i == ExtPeriod - 1)
+              {
+               BufferHiAvg[i] = SimpleMA(i, ExtPeriod, g_ha_calculator.ha_high);
+               BufferLoAvg[i] = SimpleMA(i, ExtPeriod, g_ha_calculator.ha_low);
+              }
+            else
+              {
+               double pr = 2.0 / (ExtPeriod + 1.0);
+               BufferHiAvg[i] = g_ha_calculator.ha_high[i] * pr + BufferHiAvg[i-1] * (1.0 - pr);
+               BufferLoAvg[i] = g_ha_calculator.ha_low[i] * pr + BufferLoAvg[i-1] * (1.0 - pr);
+              }
+            break;
+         case MODE_SMMA:
+            if(i == ExtPeriod - 1)
+              {
+               BufferHiAvg[i] = SimpleMA(i, ExtPeriod, g_ha_calculator.ha_high);
+               BufferLoAvg[i] = SimpleMA(i, ExtPeriod, g_ha_calculator.ha_low);
+              }
+            else
+              {
+               BufferHiAvg[i] = (BufferHiAvg[i-1] * (ExtPeriod - 1) + g_ha_calculator.ha_high[i]) / ExtPeriod;
+               BufferLoAvg[i] = (BufferLoAvg[i-1] * (ExtPeriod - 1) + g_ha_calculator.ha_low[i]) / ExtPeriod;
+              }
+            break;
+         case MODE_LWMA:
+            BufferHiAvg[i] = LinearWeightedMA(i, ExtPeriod, g_ha_calculator.ha_high);
+            BufferLoAvg[i] = LinearWeightedMA(i, ExtPeriod, g_ha_calculator.ha_low);
+            break;
+         default: // MODE_SMA
+            BufferHiAvg[i] = SimpleMA(i, ExtPeriod, g_ha_calculator.ha_high);
+            BufferLoAvg[i] = SimpleMA(i, ExtPeriod, g_ha_calculator.ha_low);
+            break;
+        }
+     }
+
+//--- STEP 3 & 4: Determine trend and set the final Gann HiLo value
+   for(int i = 1; i < rates_total; i++)
+     {
+      if(i < ExtPeriod -1)
+         continue;
+
+      // Use HA Close to determine the trend
+      if(g_ha_calculator.ha_close[i] > BufferHiAvg[i])
+         BufferTrend[i] = 1; // Up trend
+      else
+         if(g_ha_calculator.ha_close[i] < BufferLoAvg[i])
+            BufferTrend[i] = -1; // Down trend
+         else
+            BufferTrend[i] = BufferTrend[i-1];
+
+      if(BufferTrend[i] == 1)
+        {
+         BufferHA_GannHiLo[i] = BufferLoAvg[i];
+         BufferColor[i] = 0;
+        }
+      else
+        {
+         BufferHA_GannHiLo[i] = BufferHiAvg[i];
+         BufferColor[i] = 1;
+        }
+     }
+
+   return(rates_total);
+  }
+//+------------------------------------------------------------------+
+//+------------------------------------------------------------------+