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//+------------------------------------------------------------------+
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//| Laguerre_Adaptive_Channel_Pro.mq5|
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//| Copyright 2026, xxxxxxxx|
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2026, xxxxxxxx"
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#property version "1.10" // Upgraded with dedicated ENUM_CHANNEL_WIDTH_METHOD for strict UI safety
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#property description "Volatility channel around John Ehlers' Adaptive Laguerre Filter baseline."
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#property description "Supports ER, ATR, and Standard Deviation dynamic bands."
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#property indicator_chart_window
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#property indicator_buffers 3
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#property indicator_plots 3
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//--- Plot 1: Adaptive Baseline (Keltner Median Line)
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#property indicator_label1 "Adaptive Baseline"
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#property indicator_type1 DRAW_LINE
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#property indicator_color1 clrDodgerBlue
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#property indicator_style1 STYLE_SOLID
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#property indicator_width1 1
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//--- Plot 2: Upper Volatility Band
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#property indicator_label2 "Upper Band"
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#property indicator_type2 DRAW_LINE
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#property indicator_color2 clrSlateGray
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#property indicator_style2 STYLE_DOT
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#property indicator_width2 1
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//--- Plot 3: Lower Volatility Band
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#property indicator_label3 "Lower Band"
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#property indicator_type3 DRAW_LINE
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#property indicator_color3 clrSlateGray
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#property indicator_style3 STYLE_DOT
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#property indicator_width3 1
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//--- Included Engines & Core Tools
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#include <MyIncludes\Laguerre_Adaptive_Channel_Calculator.mqh>
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#include <MyIncludes\DataSync_Tools.mqh> // Centralized MTF synchronization daemon
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//--- Input Parameters ---
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input group "--- Timeframe Settings ---"
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input ENUM_TIMEFRAMES InpTimeframe = PERIOD_CURRENT; // Target Higher Timeframe
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input group "--- Adaptive Baseline Settings ---"
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input ENUM_ADAPTIVE_METHOD InpAdaptiveMethod = METHOD_EFFICIENCY_RATIO; // Adaptive Baseline Method
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input int InpAdaptivePeriod = 10; // Volatility/ER/StDev Period
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input double InpGammaMin = 0.136; // Minimum Gamma (Max Speed)
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input double InpGammaMax = 0.882; // Maximum Gamma (Max Smooth)
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input ENUM_APPLIED_PRICE_HA_ALL InpSourcePrice = PRICE_CLOSE_STD; // Price Source
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input group "--- Channel Width Settings ---"
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input ENUM_CHANNEL_WIDTH_METHOD InpWidthMethod = WIDTH_METHOD_ATR; // Volatility Band Method (ATR/StDev)
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input int InpWidthPeriod = 10; // Volatility Band Lookback Period
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input double InpMultiplier = 2.0; // Volatility Band Multiplier
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//--- Visual Indicator Buffers ---
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double BufferBaseline[];
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double BufferUpper[];
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double BufferLower[];
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//--- Internal HTF Data Caches
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double h_open[], h_high[], h_low[], h_close[];
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double h_res_baseline[], h_res_upper[], h_res_lower[];
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datetime h_time[];
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//--- Global Objects & Synchronizer State
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CLaguerreAdaptiveChannelCalculator *g_calculator;
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bool g_is_mtf_mode = false;
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ENUM_TIMEFRAMES g_calc_timeframe;
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bool g_data_ready = false;
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bool g_data_synced = false;
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int g_htf_count = 0;
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datetime g_last_htf_time = 0;
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//+------------------------------------------------------------------+
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//| Custom Indicator Initialization |
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//+------------------------------------------------------------------+
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int OnInit()
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{
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g_data_ready = false;
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g_data_synced = false;
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g_htf_count = 0;
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g_last_htf_time = 0;
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//--- 1. Resolve Timeframe and validate direction
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g_calc_timeframe = InpTimeframe;
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if(g_calc_timeframe == PERIOD_CURRENT)
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g_calc_timeframe = (ENUM_TIMEFRAMES)Period();
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if(g_calc_timeframe < Period())
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{
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PrintFormat("Critical Error: Target timeframe (%s) must be >= current timeframe (%s).",
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EnumToString(g_calc_timeframe), EnumToString(Period()));
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return(INIT_FAILED);
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}
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g_is_mtf_mode = (g_calc_timeframe > Period());
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//--- 2. Bind buffers to index mapping
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SetIndexBuffer(0, BufferBaseline, INDICATOR_DATA);
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SetIndexBuffer(1, BufferUpper, INDICATOR_DATA);
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SetIndexBuffer(2, BufferLower, INDICATOR_DATA);
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//--- Force strict chronological alignment (false = old to new)
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ArraySetAsSeries(BufferBaseline, false);
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ArraySetAsSeries(BufferUpper, false);
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ArraySetAsSeries(BufferLower, false);
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bool is_ha = (InpSourcePrice <= PRICE_HA_CLOSE);
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//--- 3. Initialize Physical Adaptive Channel Calculator
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g_calculator = new CLaguerreAdaptiveChannelCalculator();
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if(CheckPointer(g_calculator) == POINTER_INVALID)
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{
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Print("Critical Error: Failed to allocate Adaptive Channel Calculator memory.");
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return(INIT_FAILED);
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}
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if(!g_calculator.Init(InpAdaptiveMethod, InpAdaptivePeriod, InpGammaMin, InpGammaMax,
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InpWidthMethod, InpWidthPeriod, InpMultiplier, is_ha))
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{
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Print("Critical Error: Failed to initialize Adaptive Channel Calculator.");
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return(INIT_FAILED);
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}
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//--- 4. Dynamic Setup of Indicator Shortname
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string method_str = "";
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switch(InpAdaptiveMethod)
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{
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case METHOD_EFFICIENCY_RATIO:
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method_str = "ER";
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break;
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case METHOD_ATR:
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method_str = "ATR";
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break;
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case METHOD_STAND_DEV:
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method_str = "StDev";
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break;
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}
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string width_str = (InpWidthMethod == WIDTH_METHOD_ATR) ? "ATR" : "StDev";
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string tf_str = g_is_mtf_mode ? (" " + EnumToString(g_calc_timeframe)) : "";
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string short_name = StringFormat("Laguerre Adaptive Channel%s%s(%s, %s, %.1f)",
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is_ha ? " HA" : "",
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tf_str,
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method_str,
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width_str,
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InpMultiplier);
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IndicatorSetString(INDICATOR_SHORTNAME, short_name);
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//--- Drawing offset configuration
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int draw_begin = MathMax(InpAdaptivePeriod * 2, InpWidthPeriod) + 10;
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if(g_is_mtf_mode)
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draw_begin = 0; // Handled dynamically in mapped buffers
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PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, draw_begin);
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PlotIndexSetInteger(1, PLOT_DRAW_BEGIN, draw_begin);
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PlotIndexSetInteger(2, PLOT_DRAW_BEGIN, draw_begin);
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IndicatorSetInteger(INDICATOR_DIGITS, _Digits);
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//--- 5. Initialize Background Synchronization Timer Daemon (Only if MTF is active)
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if(g_is_mtf_mode)
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EventSetTimer(1);
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return(INIT_SUCCEEDED);
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}
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//+------------------------------------------------------------------+
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//| Custom Indicator Deinitialization |
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//+------------------------------------------------------------------+
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void OnDeinit(const int reason)
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{
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EventKillTimer();
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if(CheckPointer(g_calculator) != POINTER_INVALID)
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delete g_calculator;
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}
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//+------------------------------------------------------------------+
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//| Custom Indicator Calculation Loop |
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//+------------------------------------------------------------------+
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int OnCalculate(const int rates_total,
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const int prev_calculated,
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const datetime &time[],
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const double &open[],
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const double &high[],
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const double &low[],
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const double &close[],
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const long &tick_volume[],
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const long &volume[],
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const int &spread[])
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{
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int required_bars = MathMax(InpAdaptivePeriod * 2, InpWidthPeriod) + 15;
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if(rates_total < required_bars)
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return 0;
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if(CheckPointer(g_calculator) == POINTER_INVALID)
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return 0;
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//--- Force chronological indexing on current timeframe arrays
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ArraySetAsSeries(time, false);
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ArraySetAsSeries(open, false);
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ArraySetAsSeries(high, false);
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ArraySetAsSeries(low, false);
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ArraySetAsSeries(close, false);
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ENUM_APPLIED_PRICE price_type = (InpSourcePrice <= PRICE_HA_CLOSE) ?
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(ENUM_APPLIED_PRICE)(-(int)InpSourcePrice) :
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(ENUM_APPLIED_PRICE)InpSourcePrice;
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//===================================================================
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// MODE 1: Current Timeframe calculation (Standard ultra-high speed)
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//===================================================================
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if(!g_is_mtf_mode)
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{
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g_calculator.Calculate(rates_total, prev_calculated, price_type, open, high, low, close,
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BufferBaseline, BufferUpper, BufferLower);
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return(rates_total);
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}
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//===================================================================
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// MODE 2: Multi-Timeframe Engine (Warp-free step synchronization)
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//===================================================================
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if(!CDataSync::EnsureHTFDataReady(_Symbol, g_calc_timeframe, required_bars))
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{
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g_data_synced = false;
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return 0; // Wait for next tick to let history synchronize
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}
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g_data_synced = true;
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//--- Check if a new HTF candle has opened
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datetime htf_time_current = iTime(_Symbol, g_calc_timeframe, 0);
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bool htf_updated = (htf_time_current != g_last_htf_time);
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if(htf_updated || prev_calculated == 0)
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{
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g_last_htf_time = htf_time_current;
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int htf_bars = iBars(_Symbol, g_calc_timeframe);
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if(htf_bars < required_bars)
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{
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g_data_ready = false;
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return 0;
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}
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g_htf_count = MathMin(htf_bars, 3000); // Guard rails to prevent memory overload
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// Resize all HTF caching arrays
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ArrayResize(h_time, g_htf_count);
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ArrayResize(h_open, g_htf_count);
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ArrayResize(h_high, g_htf_count);
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ArrayResize(h_low, g_htf_count);
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ArrayResize(h_close, g_htf_count);
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ArrayResize(h_res_baseline, g_htf_count);
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ArrayResize(h_res_upper, g_htf_count);
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ArrayResize(h_res_lower, g_htf_count);
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// Force chronological structure on high-level arrays
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ArraySetAsSeries(h_time, false);
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ArraySetAsSeries(h_open, false);
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ArraySetAsSeries(h_high, false);
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ArraySetAsSeries(h_low, false);
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ArraySetAsSeries(h_close, false);
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ArraySetAsSeries(h_res_baseline, false);
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ArraySetAsSeries(h_res_upper, false);
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ArraySetAsSeries(h_res_lower, false);
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// Copy basic pricing data
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if(CopyTime(_Symbol, g_calc_timeframe, 0, g_htf_count, h_time) != g_htf_count ||
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CopyOpen(_Symbol, g_calc_timeframe, 0, g_htf_count, h_open) != g_htf_count ||
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CopyHigh(_Symbol, g_calc_timeframe, 0, g_htf_count, h_high) != g_htf_count ||
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CopyLow(_Symbol, g_calc_timeframe, 0, g_htf_count, h_low) != g_htf_count ||
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CopyClose(_Symbol, g_calc_timeframe, 0, g_htf_count, h_close) != g_htf_count)
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{
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g_data_ready = false;
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return 0;
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}
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//--- Calculate core indicators directly on high timeframe (Initial setup)
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g_calculator.Calculate(g_htf_count, 0, price_type, h_open, h_high, h_low, h_close, h_res_baseline, h_res_upper, h_res_lower);
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g_data_ready = true;
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}
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if(!g_data_ready)
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return 0;
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//--- 5. Real-Time Update for the active forming HTF candle (Index: g_htf_count - 1) on every tick
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int live_idx = g_htf_count - 1;
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if(live_idx >= required_bars)
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{
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double o[1], h[1], l[1], c[1];
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int shift = iBarShift(_Symbol, g_calc_timeframe, htf_time_current, false);
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if(shift >= 0 &&
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CopyOpen(_Symbol, g_calc_timeframe, shift, 1, o) == 1 &&
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CopyHigh(_Symbol, g_calc_timeframe, shift, 1, h) == 1 &&
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CopyLow(_Symbol, g_calc_timeframe, shift, 1, l) == 1 &&
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CopyClose(_Symbol, g_calc_timeframe, shift, 1, c) == 1)
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{
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h_open[live_idx] = o[0];
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h_high[live_idx] = h[0];
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h_low[live_idx] = l[0];
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h_close[live_idx] = c[0];
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// Stateful, O(1) mock update for the live bar
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g_calculator.Calculate(g_htf_count, g_htf_count, price_type, h_open, h_high, h_low, h_close, h_res_baseline, h_res_upper, h_res_lower);
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}
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}
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//--- 6. Warp-free step force (Staircase Solution anchor determination)
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int start = (prev_calculated > 0) ? prev_calculated - 1 : 0;
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int first_bar_of_forming_htf = rates_total - 1;
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while(first_bar_of_forming_htf > 0 &&
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iBarShift(_Symbol, g_calc_timeframe, time[first_bar_of_forming_htf], false) == 0)
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{
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first_bar_of_forming_htf--;
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}
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first_bar_of_forming_htf++; // Anchor set to start of current HTF period block
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if(start > first_bar_of_forming_htf)
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start = first_bar_of_forming_htf;
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//--- 7. Map HTF Calculated results cleanly to the lower chart timeframe (O(1) complexity)
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for(int i = start; i < rates_total; i++)
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{
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datetime t = time[i];
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int shift_htf = iBarShift(_Symbol, g_calc_timeframe, t, false);
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if(shift_htf >= 0)
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{
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int idx_htf = g_htf_count - 1 - shift_htf;
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if(idx_htf >= 0 && idx_htf < g_htf_count)
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{
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BufferBaseline[i] = h_res_baseline[idx_htf];
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BufferUpper[i] = h_res_upper[idx_htf];
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BufferLower[i] = h_res_lower[idx_htf];
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}
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else
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{
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BufferBaseline[i] = EMPTY_VALUE;
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BufferUpper[i] = EMPTY_VALUE;
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BufferLower[i] = EMPTY_VALUE;
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}
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}
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else
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{
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BufferBaseline[i] = EMPTY_VALUE;
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BufferUpper[i] = EMPTY_VALUE;
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BufferLower[i] = EMPTY_VALUE;
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}
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}
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//--- Return of OnCalculate
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return(rates_total);
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}
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//+------------------------------------------------------------------+
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//| OnTimer Event Handler |
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//+------------------------------------------------------------------+
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void OnTimer()
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{
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//--- Delegate asynchronous history checking and forced redraws to DataSync daemon using correct lookback period
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int required_bars = MathMax(InpAdaptivePeriod * 2, InpWidthPeriod) + 15;
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CDataSync::OnTimerUpdate(_Symbol, g_calc_timeframe, required_bars, g_data_synced);
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}
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//+------------------------------------------------------------------+
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//+------------------------------------------------------------------+
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Reference in New Issue
Block a user