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2026-08-09 10:37:45 +00:00 · 2025-09-22 08:41:55 +02:00
parent c062ce23bf
commit 23652a7c27
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+//+------------------------------------------------------------------+
+//|                                                         MAMA.mq5 |
+//|                                          Copyright 2025, xxxxxxxx|
+//+------------------------------------------------------------------+
+#property copyright "Copyright 2025, xxxxxxxx"
+#property version   "2.01"
+#property description "MESA Adaptive Moving Average (MAMA) by John Ehlers. Clean implementation."
+
+#property indicator_chart_window
+#property indicator_buffers 1
+#property indicator_plots   1
+
+#include <MyIncludes\MESA_Calculator.mqh>
+
+//--- Plot 1: MAMA Line
+#property indicator_label1  "MAMA"
+#property indicator_type1   DRAW_LINE
+#property indicator_color1  clrRed
+#property indicator_style1  STYLE_SOLID
+#property indicator_width1  2
+
+//--- Input Parameters ---
+input ENUM_APPLIED_PRICE InpSourcePrice = PRICE_CLOSE; // Source Price
+input double             InpFastLimit   = 0.5;         // Fast Limit
+input double             InpSlowLimit   = 0.05;        // Slow Limit
+
+//--- Indicator Buffers ---
+double    BufferMAMA[];
+double    BufferPrice[];
+
+//--- Global calculator object ---
+CMESACalculator *g_calculator;
+
+//--- Forward declaration
+int PriceSeries(ENUM_APPLIED_PRICE,int,const double&[],const double&[],const double&[],const double&[],double&[]);
+
+//+------------------------------------------------------------------+
+//| Custom indicator initialization function.                        |
+//+------------------------------------------------------------------+
+int OnInit()
+  {
+   SetIndexBuffer(0, BufferMAMA, INDICATOR_DATA);
+   ArraySetAsSeries(BufferMAMA, false);
+
+   PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, 10);
+   IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("MAMA(%.2f, %.2f)", InpFastLimit, InpSlowLimit));
+
+   g_calculator = new CMESACalculator();
+   if(CheckPointer(g_calculator) == POINTER_INVALID || !g_calculator.Init(InpFastLimit, InpSlowLimit))
+     {
+      Print("Failed to initialize MESA Calculator.");
+      return(INIT_FAILED);
+     }
+   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 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(CheckPointer(g_calculator) != POINTER_INVALID)
+     {
+      //--- Corrected: Pass all required parameters to the Calculate method
+      double dummy_fama[];
+      g_calculator.Calculate(rates_total, InpSourcePrice, open, high, low, close, BufferMAMA, dummy_fama);
+     }
+   return(rates_total);
+  }
+
+//+------------------------------------------------------------------+
+//| Helper function to get the selected price series.                |
+//+------------------------------------------------------------------+
+int PriceSeries(ENUM_APPLIED_PRICE type, int rates_total, const double &open[], const double &high[], const double &low[], const double &close[], double &dest_buffer[])
+  {
+// This helper is not strictly needed anymore as logic is in the calculator,
+// but we keep it for potential future use or consistency.
+// The main indicator now passes the raw OHLC to the calculator.
+   return rates_total;
+  }
+//+------------------------------------------------------------------+
+//+------------------------------------------------------------------+