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refactor: Unified Native & MTF KAMA Volatility Channel
This commit is contained in:
Toh4iem9
@@ -3,8 +3,8 @@
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//| Copyright 2026, xxxxxxxx|
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//| Copyright 2026, xxxxxxxx|
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//+------------------------------------------------------------------+
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2026, xxxxxxxx"
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#property copyright "Copyright 2026, xxxxxxxx"
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#property version "1.00"
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#property version "3.00" // Unified Native & MTF KAMA Volatility Channel
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#property description "KAMA Channel (Keltner Concept): KAMA Middle Line + ATR Bands."
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#property description "Professional KAMA Channel (Keltner Concept): KAMA Middle Line + Dynamic ATR Bands."
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#property indicator_chart_window
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#property indicator_chart_window
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#property indicator_buffers 3
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#property indicator_buffers 3
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@@ -25,88 +25,169 @@
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#property indicator_width2 1
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#property indicator_width2 1
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//--- Plot 3: Middle Band (KAMA)
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//--- Plot 3: Middle Band (KAMA)
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#property indicator_label3 "KAMA"
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#property indicator_label3 "KAMA Middle"
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#property indicator_type3 DRAW_LINE
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#property indicator_type3 DRAW_LINE
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#property indicator_color3 clrCrimson
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#property indicator_color3 clrCrimson
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#property indicator_style3 STYLE_SOLID
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#property indicator_style3 STYLE_SOLID
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#property indicator_width3 1
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#property indicator_width3 2
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//--- Included Engines & Central Tools
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#include <MyIncludes\KAMA_Channel_Calculator.mqh>
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#include <MyIncludes\KAMA_Channel_Calculator.mqh>
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#include <MyIncludes\DataSync_Tools.mqh>
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//--- Input Parameters
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//--- Input Parameters ---
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input group "KAMA Settings"
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input group "--- Timeframe Settings ---"
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input int InpErPeriod = 10; // Efficiency Ratio Period
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input ENUM_TIMEFRAMES InpTimeframe = PERIOD_CURRENT; // Calculation Timeframe (Current or HTF)
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input int InpFastEmaPeriod = 2; // Fastest EMA Period
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input int InpSlowEmaPeriod = 30; // Slowest EMA Period
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input group "--- KAMA Middle Settings ---"
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input ENUM_APPLIED_PRICE_HA_ALL InpSourcePrice = PRICE_CLOSE_STD;
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input int InpErPeriod = 10; // Efficiency Ratio Period
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input int InpFastEmaPeriod = 2; // Fastest EMA Period
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input int InpSlowEmaPeriod = 30; // Slowest EMA Period
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input ENUM_APPLIED_PRICE_HA_ALL InpSourcePrice = PRICE_CLOSE_STD; // Price Source (Standard / HA)
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//+------------------------------------------------------------------+
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//+------------------------------------------------------------------+
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//| |
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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 group "--- Channel (ATR) Settings ---"
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input int InpAtrPeriod = 14;
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input int InpAtrPeriod = 14; // ATR Volatility Period
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input double InpMultiplier = 2.0;
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input double InpMultiplier = 2.0; // ATR Multiplier
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input ENUM_ATR_SOURCE InpAtrSource = ATR_SOURCE_STANDARD;
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input ENUM_ATR_SOURCE InpAtrSource = ATR_SOURCE_STANDARD; // ATR Price Source
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//--- Buffers
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input group "--- Visual Settings - Middle Line ---"
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input color InpColorMiddle = clrCrimson; // Middle Line Color
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input ENUM_LINE_STYLE InpStyleMiddle = STYLE_SOLID; // Middle Line Style
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input int InpWidthMiddle = 2; // Middle Line Width
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input group "--- Visual Settings - Outer Bands ---"
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input color InpColorBands = clrDarkOrange; // Outer Bands Color
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input ENUM_LINE_STYLE InpStyleBands = STYLE_DOT; // Outer Bands Style
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input int InpWidthBands = 1; // Outer Bands Width
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//--- Indicator Buffers ---
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double BufferUpper[];
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double BufferUpper[];
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double BufferLower[];
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double BufferLower[];
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double BufferMiddle[];
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double BufferMiddle[];
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//--- Global Object
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//--- Internal HTF Data Caches (Chronological Arrays)
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CKamaChannelCalculator *g_calculator;
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double h_open[], h_high[], h_low[], h_close[];
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double h_res_upper[], h_res_lower[], h_res_middle[];
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datetime h_time[];
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//--- Global Objects & State Management
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CKamaChannelCalculator *g_calculator = NULL;
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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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//+------------------------------------------------------------------+
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//| OnInit |
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//| Custom Indicator Initialization |
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//+------------------------------------------------------------------+
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//+------------------------------------------------------------------+
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int OnInit()
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int OnInit()
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{
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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_PARAMETERS_INCORRECT;
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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, BufferUpper, INDICATOR_DATA);
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SetIndexBuffer(0, BufferUpper, INDICATOR_DATA);
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SetIndexBuffer(1, BufferLower, INDICATOR_DATA);
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SetIndexBuffer(1, BufferLower, INDICATOR_DATA);
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SetIndexBuffer(2, BufferMiddle, INDICATOR_DATA);
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SetIndexBuffer(2, BufferMiddle, INDICATOR_DATA);
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// Force strict chronological alignment (false = old to new)
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ArraySetAsSeries(BufferUpper, false);
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ArraySetAsSeries(BufferUpper, false);
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ArraySetAsSeries(BufferLower, false);
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ArraySetAsSeries(BufferLower, false);
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ArraySetAsSeries(BufferMiddle, false);
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ArraySetAsSeries(BufferMiddle, false);
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//--- Factory Logic
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ArrayInitialize(BufferUpper, EMPTY_VALUE);
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if(InpSourcePrice <= PRICE_HA_CLOSE)
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ArrayInitialize(BufferLower, EMPTY_VALUE);
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g_calculator = new CKamaChannelCalculator_HA();
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ArrayInitialize(BufferMiddle, EMPTY_VALUE);
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else
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g_calculator = new CKamaChannelCalculator();
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//--- Initialize
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// 3. Dynamic Visual Styling
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if(CheckPointer(g_calculator) == POINTER_INVALID ||
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PlotIndexSetInteger(0, PLOT_LINE_COLOR, InpColorBands);
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!g_calculator.Init(InpErPeriod, InpFastEmaPeriod, InpSlowEmaPeriod, InpAtrPeriod, InpMultiplier, InpAtrSource))
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PlotIndexSetInteger(0, PLOT_LINE_STYLE, InpStyleBands);
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{
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PlotIndexSetInteger(0, PLOT_LINE_WIDTH, InpWidthBands);
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Print("Failed to initialize KAMA Channel Calculator.");
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PlotIndexSetDouble(0, PLOT_EMPTY_VALUE, EMPTY_VALUE);
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return(INIT_FAILED);
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}
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//--- Shortname
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PlotIndexSetInteger(1, PLOT_LINE_COLOR, InpColorBands);
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string type = (InpSourcePrice <= PRICE_HA_CLOSE) ? " HA" : "";
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PlotIndexSetInteger(1, PLOT_LINE_STYLE, InpStyleBands);
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IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("KAMA Ch%s(%d, ATR %d)", type, InpErPeriod, InpAtrPeriod));
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PlotIndexSetInteger(1, PLOT_LINE_WIDTH, InpWidthBands);
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PlotIndexSetDouble(1, PLOT_EMPTY_VALUE, EMPTY_VALUE);
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PlotIndexSetInteger(2, PLOT_LINE_COLOR, InpColorMiddle);
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PlotIndexSetInteger(2, PLOT_LINE_STYLE, InpStyleMiddle);
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PlotIndexSetInteger(2, PLOT_LINE_WIDTH, InpWidthMiddle);
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PlotIndexSetDouble(2, PLOT_EMPTY_VALUE, EMPTY_VALUE);
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int warmup = MathMax(InpErPeriod, InpAtrPeriod);
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int draw_begin = warmup + 5;
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if(g_is_mtf_mode)
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draw_begin = 0;
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//--- Visuals
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int draw_begin = MathMax(InpErPeriod, InpAtrPeriod);
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PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, draw_begin);
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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(1, PLOT_DRAW_BEGIN, draw_begin);
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PlotIndexSetInteger(2, PLOT_DRAW_BEGIN, InpErPeriod);
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PlotIndexSetInteger(2, PLOT_DRAW_BEGIN, draw_begin);
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IndicatorSetInteger(INDICATOR_DIGITS, _Digits);
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IndicatorSetInteger(INDICATOR_DIGITS, _Digits);
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// 4. Initialize Channel Engine
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g_calculator = new CKamaChannelCalculator();
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if(CheckPointer(g_calculator) == POINTER_INVALID ||
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!g_calculator.Init(InpErPeriod, InpFastEmaPeriod, InpSlowEmaPeriod, InpSourcePrice, InpAtrPeriod, InpMultiplier, InpAtrSource))
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{
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Print("Critical Error: Failed to create or initialize KAMA Channel Calculator.");
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return INIT_FAILED;
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}
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// 5. Dynamic Setup of Indicator Shortname
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string ha_kama = (InpSourcePrice <= PRICE_HA_CLOSE) ? " HA" : "";
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string ha_atr = (InpAtrSource == ATR_SOURCE_HEIKIN_ASHI) ? "/HA" : "";
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string tf_str = g_is_mtf_mode ? (" [" + EnumToString(g_calc_timeframe) + "]") : "";
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string short_name = StringFormat("KAMA Channel%s%s(%d, ATR%s %d, x%.1f)",
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ha_kama, tf_str,
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InpErPeriod, ha_atr, InpAtrPeriod, InpMultiplier);
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IndicatorSetString(INDICATOR_SHORTNAME, short_name);
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// 6. Initialize Background Synchronization Timer (Only for MTF mode)
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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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return(INIT_SUCCEEDED);
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}
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}
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//+------------------------------------------------------------------+
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//+------------------------------------------------------------------+
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//| OnDeinit |
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//| Custom Indicator Deinitialization |
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//+------------------------------------------------------------------+
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//+------------------------------------------------------------------+
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void OnDeinit(const int reason)
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void OnDeinit(const int reason)
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{
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{
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if(g_is_mtf_mode)
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EventKillTimer();
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if(CheckPointer(g_calculator) != POINTER_INVALID)
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if(CheckPointer(g_calculator) != POINTER_INVALID)
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{
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delete g_calculator;
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delete g_calculator;
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g_calculator = NULL;
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}
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}
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}
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//+------------------------------------------------------------------+
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//+------------------------------------------------------------------+
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//| OnCalculate |
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//| Custom Indicator Calculation Loop |
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//+------------------------------------------------------------------+
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//+------------------------------------------------------------------+
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int OnCalculate(const int rates_total,
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int OnCalculate(const int rates_total,
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const int prev_calculated,
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const int prev_calculated,
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@@ -119,16 +200,171 @@ int OnCalculate(const int rates_total,
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const long &volume[],
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const long &volume[],
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const int &spread[])
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const int &spread[])
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{
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{
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if(rates_total < MathMax(InpErPeriod, InpAtrPeriod))
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int required_bars = MathMax(InpErPeriod, InpAtrPeriod) + 10;
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return(0);
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if(rates_total < required_bars || CheckPointer(g_calculator) == POINTER_INVALID)
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return 0;
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ENUM_APPLIED_PRICE price_type = (InpSourcePrice <= PRICE_HA_CLOSE) ?
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// Force chronological indexing on current timeframe arrays
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(ENUM_APPLIED_PRICE)(-(int)InpSourcePrice) :
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ArraySetAsSeries(time, false);
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(ENUM_APPLIED_PRICE)InpSourcePrice;
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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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g_calculator.Calculate(rates_total, prev_calculated, open, high, low, close, price_type,
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//===================================================================
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BufferMiddle, BufferUpper, BufferLower);
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// MODE 1: Direct Current Timeframe Calculation (Zero-Lag O(1))
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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, open, high, low, close,
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BufferMiddle, 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; // History sync pending
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}
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g_data_synced = true;
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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); // Memory safeguard
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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_upper, g_htf_count);
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ArrayResize(h_res_lower, g_htf_count);
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ArrayResize(h_res_middle, g_htf_count);
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// Force chronological alignment
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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_upper, false);
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ArraySetAsSeries(h_res_lower, false);
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ArraySetAsSeries(h_res_middle, false);
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// Copy 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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// Compute HTF KAMA Channel Values
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g_calculator.Calculate(g_htf_count, 0, h_open, h_high, h_low, h_close,
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h_res_middle, 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. Stateful live-bar update for the active forming HTF candle
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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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// Real-time live bar state mocking
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g_calculator.Calculate(g_htf_count, g_htf_count, h_open, h_high, h_low, h_close,
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h_res_middle, h_res_upper, h_res_lower);
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}
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}
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// 6. Forming LTF Block Flat-Force Anchor (The Staircase Solution)
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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;
|
||||||
|
while(first_bar_of_forming_htf > 0 &&
|
||||||
|
iBarShift(_Symbol, g_calc_timeframe, time[first_bar_of_forming_htf], false) == 0)
|
||||||
|
{
|
||||||
|
first_bar_of_forming_htf--;
|
||||||
|
}
|
||||||
|
first_bar_of_forming_htf++; // Dynamic anchor start
|
||||||
|
|
||||||
|
if(start > first_bar_of_forming_htf)
|
||||||
|
start = first_bar_of_forming_htf;
|
||||||
|
|
||||||
|
// 7. Chronological Mapping Loop to Chart Timeframe
|
||||||
|
for(int i = start; i < rates_total; i++)
|
||||||
|
{
|
||||||
|
datetime t = time[i];
|
||||||
|
int shift_htf = iBarShift(_Symbol, g_calc_timeframe, t, false);
|
||||||
|
|
||||||
|
if(shift_htf >= 0)
|
||||||
|
{
|
||||||
|
int idx_htf = g_htf_count - 1 - shift_htf;
|
||||||
|
if(idx_htf >= 0 && idx_htf < g_htf_count)
|
||||||
|
{
|
||||||
|
BufferUpper[i] = h_res_upper[idx_htf];
|
||||||
|
BufferLower[i] = h_res_lower[idx_htf];
|
||||||
|
BufferMiddle[i] = h_res_middle[idx_htf];
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
BufferUpper[i] = EMPTY_VALUE;
|
||||||
|
BufferLower[i] = EMPTY_VALUE;
|
||||||
|
BufferMiddle[i] = EMPTY_VALUE;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
BufferUpper[i] = EMPTY_VALUE;
|
||||||
|
BufferLower[i] = EMPTY_VALUE;
|
||||||
|
BufferMiddle[i] = EMPTY_VALUE;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
return(rates_total);
|
return(rates_total);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
//+------------------------------------------------------------------+
|
||||||
|
//| OnTimer Event Handler (Data Synchronization Daemon) |
|
||||||
|
//+------------------------------------------------------------------+
|
||||||
|
void OnTimer()
|
||||||
|
{
|
||||||
|
int required_bars = MathMax(InpErPeriod, InpAtrPeriod) + 10;
|
||||||
|
CDataSync::OnTimerUpdate(_Symbol, g_calc_timeframe, required_bars, g_data_synced);
|
||||||
|
}
|
||||||
|
//+------------------------------------------------------------------+
|
||||||
//+------------------------------------------------------------------+
|
//+------------------------------------------------------------------+
|
||||||
|
|||||||
Reference in New Issue
Block a user