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Toh4iem9
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//+------------------------------------------------------------------+
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//| Ehlers_Channel_MTF_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 "1.00"
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#property description "Ehlers Channel (Multi-Timeframe)."
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#property description "Displays HTF Smoother-based Channel on Current Chart."
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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: Upper
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#property indicator_label1 "Upper MTF"
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#property indicator_type1 DRAW_LINE
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#property indicator_color1 clrMediumSlateBlue
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#property indicator_style1 STYLE_DOT
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#property indicator_width1 1
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// Plot 2: Lower
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#property indicator_label2 "Lower MTF"
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#property indicator_type2 DRAW_LINE
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#property indicator_color2 clrMediumSlateBlue
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#property indicator_style2 STYLE_DOT
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#property indicator_width2 1
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// Plot 3: Middle
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#property indicator_label3 "Middle MTF"
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#property indicator_type3 DRAW_LINE
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#property indicator_color3 clrCrimson
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#property indicator_style3 STYLE_SOLID
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#property indicator_width3 1
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#include <MyIncludes\Ehlers_Channel_Calculator.mqh>
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//--- Input Parameters
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input ENUM_TIMEFRAMES InpTimeframe = PERIOD_H1; // Target Timeframe
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input group "Smoother Settings"
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input ENUM_SMOOTHER_TYPE InpSmootherType = SUPERSMOOTHER; // Filter Type
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input int InpPeriod = 20; // Filter Period
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input ENUM_APPLIED_PRICE_HA_ALL InpSourcePrice = PRICE_CLOSE_STD; // Price Source
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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input group "Channel (ATR) Settings"
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input int InpAtrPeriod = 14;
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input double InpMultiplier = 2.0;
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input ENUM_ATR_SOURCE InpAtrSource = ATR_SOURCE_STANDARD;
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//--- Buffers
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double BufUpper[];
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double BufLower[];
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double BufMiddle[];
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//--- Internal HTF Data
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double h_open[], h_high[], h_low[], h_close[];
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datetime h_time[];
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double h_up[], h_lo[], h_mid[]; // Calculated HTF results
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//--- Calculator
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CEhlersChannelCalculator *g_calc;
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//+------------------------------------------------------------------+
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//| Init |
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//+------------------------------------------------------------------+
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int OnInit()
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{
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if(InpTimeframe <= Period() && InpTimeframe != PERIOD_CURRENT)
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{
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Print("Warning: Target Timeframe should be > Current Timeframe.");
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}
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SetIndexBuffer(0, BufUpper, INDICATOR_DATA);
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SetIndexBuffer(1, BufLower, INDICATOR_DATA);
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SetIndexBuffer(2, BufMiddle, INDICATOR_DATA);
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string tf_name = StringSubstr(EnumToString(InpTimeframe), 7);
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string smoothStr = (InpSmootherType == SUPERSMOOTHER) ? "SS" : "US";
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string name = StringFormat("Ehlers Ch MTF %s(%s %d, ATR %d)", tf_name, smoothStr, InpPeriod, InpAtrPeriod);
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IndicatorSetString(INDICATOR_SHORTNAME, name);
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// Factory Logic for HA support
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if(InpSourcePrice <= PRICE_HA_CLOSE)
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g_calc = new CEhlersChannelCalculator_HA();
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else
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g_calc = new CEhlersChannelCalculator();
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if(!g_calc.Init(InpPeriod, InpSmootherType, InpAtrPeriod, InpMultiplier, InpAtrSource))
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return INIT_FAILED;
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return(INIT_SUCCEEDED);
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}
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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void OnDeinit(const int r)
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{
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if(CheckPointer(g_calc)==POINTER_DYNAMIC)
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delete g_calc;
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}
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//+------------------------------------------------------------------+
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//| Calculate |
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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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// 1. Fetch HTF Data
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int htf_bars = iBars(_Symbol, InpTimeframe);
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if(htf_bars < MathMax(InpPeriod, InpAtrPeriod) + 10)
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return 0;
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int count = MathMin(htf_bars, 3000);
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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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if(CopyTime(_Symbol, InpTimeframe, 0, count, h_time) != count)
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return 0;
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if(CopyOpen(_Symbol, InpTimeframe, 0, count, h_open) != count)
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return 0;
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if(CopyHigh(_Symbol, InpTimeframe, 0, count, h_high) != count)
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return 0;
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if(CopyLow(_Symbol, InpTimeframe, 0, count, h_low) != count)
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return 0;
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if(CopyClose(_Symbol, InpTimeframe, 0, count, h_close) != count)
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return 0;
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// 2. Calc on HTF
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if(ArraySize(h_up) != count)
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{
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ArrayResize(h_up, count);
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ArrayResize(h_lo, count);
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ArrayResize(h_mid, count);
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}
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ENUM_APPLIED_PRICE price_type;
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if(InpSourcePrice <= PRICE_HA_CLOSE)
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price_type = (ENUM_APPLIED_PRICE)(-(int)InpSourcePrice);
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else
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price_type = (ENUM_APPLIED_PRICE)InpSourcePrice;
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g_calc.Calculate(count, 0, h_open, h_high, h_low, h_close, price_type, h_mid, h_up, h_lo);
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// 3. Map to Current Chart
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int start = (prev_calculated > 0) ? prev_calculated - 1 : 0;
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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, InpTimeframe, t, false);
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if(shift_htf >= 0)
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{
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int idx_htf = count - 1 - shift_htf;
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if(idx_htf >= 0 && idx_htf < count)
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{
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BufUpper[i] = h_up[idx_htf];
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BufLower[i] = h_lo[idx_htf];
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BufMiddle[i] = h_mid[idx_htf];
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}
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else
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{
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BufUpper[i] = EMPTY_VALUE;
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BufLower[i] = EMPTY_VALUE;
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BufMiddle[i] = EMPTY_VALUE;
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}
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}
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}
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return(rates_total);
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}
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//+------------------------------------------------------------------+
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//+------------------------------------------------------------------+
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