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Indicators/MyIndicators/Authors/Ehlers/2_Oscillators/Laguerre_Stoch_Fast_Pro.mq5

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+//+------------------------------------------------------------------+
+//|                                      Laguerre_Stoch_Fast_Pro.mq5 |
+//|                                          Copyright 2026, xxxxxxxx|
+//+------------------------------------------------------------------+
+#property copyright "Copyright 2026, xxxxxxxx"
+#property version   "1.00"
+#property description "Laguerre Stochastic Fast. Calculates Fast Stochastic directly"
+#property description "from the internal state variables (L0-L3) of the Laguerre Filter."
+
+#property indicator_separate_window
+#property indicator_buffers 2
+#property indicator_plots   2
+
+//--- Plot 1: Fast %K
+#property indicator_label1  "Fast %K"
+#property indicator_type1   DRAW_LINE
+#property indicator_color1  clrLimeGreen
+#property indicator_style1  STYLE_SOLID
+#property indicator_width1  1
+
+//--- Plot 2: Signal Line
+#property indicator_label2  "Signal"
+#property indicator_type2   DRAW_LINE
+#property indicator_color2  clrRed
+#property indicator_style2  STYLE_SOLID
+#property indicator_width2  1
+
+//--- Levels
+#property indicator_minimum 0
+#property indicator_maximum 100
+#property indicator_level1 20.0
+#property indicator_level2 80.0
+#property indicator_levelstyle STYLE_DOT
+
+#include <MyIncludes\Laguerre_Stoch_Fast_Calculator.mqh>
+
+//--- Input Parameters
+input group                     "Laguerre Settings"
+input double                    InpGamma        = 0.7;
+input ENUM_APPLIED_PRICE_HA_ALL InpSourcePrice  = PRICE_CLOSE_STD;
+
+input group                     "Signal Line Settings"
+input int                       InpSignalPeriod = 3;
+input ENUM_MA_TYPE              InpSignalMethod = SMA;
+
+//--- Buffers
+double    BufferStoch[];
+double    BufferSignal[];
+
+//--- Global Object
+CLaguerreStochFastCalculator *g_calculator;
+
+//+------------------------------------------------------------------+
+//| OnInit                                                           |
+//+------------------------------------------------------------------+
+int OnInit()
+  {
+   SetIndexBuffer(0, BufferStoch,  INDICATOR_DATA);
+   SetIndexBuffer(1, BufferSignal, INDICATOR_DATA);
+   ArraySetAsSeries(BufferStoch,  false);
+   ArraySetAsSeries(BufferSignal, false);
+
+//--- Factory Logic
+   if(InpSourcePrice <= PRICE_HA_CLOSE)
+      g_calculator = new CLaguerreStochFastCalculator_HA();
+   else
+      g_calculator = new CLaguerreStochFastCalculator();
+
+//--- Initialize
+   if(CheckPointer(g_calculator) == POINTER_INVALID ||
+      !g_calculator.Init(InpGamma, InpSignalPeriod, InpSignalMethod))
+     {
+      Print("Failed to initialize Laguerre Stoch Fast Calculator.");
+      return(INIT_FAILED);
+     }
+
+//--- Shortname
+   string type = (InpSourcePrice <= PRICE_HA_CLOSE) ? " HA" : "";
+   IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("Laguerre Stoch Fast%s(%.2f, Sig %d)", type, InpGamma, InpSignalPeriod));
+
+//--- Visuals
+   PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, 2);
+   PlotIndexSetInteger(1, PLOT_DRAW_BEGIN, 2 + InpSignalPeriod);
+   IndicatorSetInteger(INDICATOR_DIGITS, 2);
+
+   return(INIT_SUCCEEDED);
+  }
+
+//+------------------------------------------------------------------+
+//| OnDeinit                                                         |
+//+------------------------------------------------------------------+
+void OnDeinit(const int reason)
+  {
+   if(CheckPointer(g_calculator) != POINTER_INVALID)
+      delete g_calculator;
+  }
+
+//+------------------------------------------------------------------+
+//| OnCalculate                                                      |
+//+------------------------------------------------------------------+
+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 < 2)
+      return(0);
+
+   ENUM_APPLIED_PRICE price_type = (InpSourcePrice <= PRICE_HA_CLOSE) ?
+                                   (ENUM_APPLIED_PRICE)(-(int)InpSourcePrice) :
+                                   (ENUM_APPLIED_PRICE)InpSourcePrice;
+
+   g_calculator.Calculate(rates_total, prev_calculated, price_type, open, high, low, close,
+                          BufferStoch, BufferSignal);
+
+   return(rates_total);
+  }
+//+------------------------------------------------------------------+