new files added

2026-08-15 21:38:07 +00:00 · 2025-10-21 15:11:46 +02:00
parent 3a43f6fca1
commit 7d5047f036
1 changed files with 93 additions and 0 deletions
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+//+------------------------------------------------------------------+
+//|                                     Butterworth_Filter_Pro.mq5   |
+//|                                          Copyright 2025, xxxxxxxx|
+//|                                                                  |
+//+------------------------------------------------------------------+
+#property copyright "Copyright 2025, xxxxxxxx"
+#property version   "1.00"
+#property description "John Ehlers' Higher-Order Butterworth Filter."
+
+#property indicator_chart_window
+#property indicator_buffers 1
+#property indicator_plots   1
+#property indicator_label1  "Butterworth"
+#property indicator_type1   DRAW_LINE
+#property indicator_color1  clrMediumPurple
+#property indicator_style1  STYLE_SOLID
+#property indicator_width1  1
+
+#include <MyIncludes\Butterworth_Calculator.mqh>
+
+enum ENUM_APPLIED_PRICE_HA_ALL
+  {
+   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,
+   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;     // Critical Period for the filter
+input ENUM_BUTTERWORTH_POLES    InpPoles  = POLES_TWO; // Number of poles (2 or 3)
+input ENUM_APPLIED_PRICE_HA_ALL InpSourcePrice = PRICE_CLOSE_STD;
+
+//--- Indicator Buffers ---
+double    BufferFilter[];
+
+//--- Global calculator object ---
+CButterworthCalculator *g_calculator;
+
+//+------------------------------------------------------------------+
+int OnInit()
+  {
+   SetIndexBuffer(0, BufferFilter,  INDICATOR_DATA);
+   ArraySetAsSeries(BufferFilter,  false);
+
+   if(InpSourcePrice <= PRICE_HA_CLOSE)
+     {
+      g_calculator = new CButterworthCalculator_HA();
+      IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("Butterworth HA(%d,%d)", InpPeriod, (int)InpPoles));
+     }
+   else
+     {
+      g_calculator = new CButterworthCalculator();
+      IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("Butterworth(%d,%d)", InpPeriod, (int)InpPoles));
+     }
+
+   if(CheckPointer(g_calculator) == POINTER_INVALID || !g_calculator.Init(InpPeriod, InpPoles))
+     {
+      Print("Failed to initialize Butterworth Calculator.");
+      return(INIT_FAILED);
+     }
+
+   PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, InpPeriod);
+   IndicatorSetInteger(INDICATOR_DIGITS, _Digits);
+
+   return(INIT_SUCCEEDED);
+  }
+
+//+------------------------------------------------------------------+
+void OnDeinit(const int reason)
+  {
+   if(CheckPointer(g_calculator) != POINTER_INVALID)
+      delete g_calculator;
+  }
+
+//+------------------------------------------------------------------+
+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, BufferFilter);
+   return(rates_total);
+  }
+//+------------------------------------------------------------------+
+//+------------------------------------------------------------------+