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Toh4iem9
104 lines
4.4 KiB
Plaintext
104 lines
4.4 KiB
Plaintext
//+------------------------------------------------------------------+
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//| Chart_HeikenAshi.mq5 |
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//| Copyright 2025, xxxxxxxx |
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//| |
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2025, xxxxxxxx"
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#property link ""
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#property version "2.00" // Refactored to use HA_Tools.mqh
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#property description "Draws Heiken Ashi candles on the main chart."
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//--- Custom Toolkit Include ---
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#include <MyIncludes\HA_Tools.mqh>
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//--- Indicator Window and Plot Properties ---
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#property indicator_chart_window // Draw on the main chart window
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#property indicator_buffers 5 // 4 for OHLC, 1 for color
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#property indicator_plots 1
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//--- Plot 1: Heiken Ashi Candles
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#property indicator_type1 DRAW_COLOR_CANDLES
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#property indicator_color1 clrDodgerBlue, clrMaroon // Up and Down colors
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#property indicator_label1 "HA Open;HA High;HA Low;HA Close" // Labels for Data Window
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//--- Indicator Buffers ---
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double BufferHA_Open[];
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double BufferHA_High[];
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double BufferHA_Low[];
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double BufferHA_Close[];
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double BufferColor[]; // Buffer for candle colors
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//--- Global Objects ---
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CHA_Calculator g_ha_calculator; // Global instance of our Heiken Ashi calculator
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//+------------------------------------------------------------------+
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//| Custom indicator initialization function. |
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//| Called once when the indicator is first loaded. |
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//+------------------------------------------------------------------+
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void OnInit()
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{
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//--- Map the buffers to the indicator's internal memory
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SetIndexBuffer(0, BufferHA_Open, INDICATOR_DATA);
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SetIndexBuffer(1, BufferHA_High, INDICATOR_DATA);
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SetIndexBuffer(2, BufferHA_Low, INDICATOR_DATA);
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SetIndexBuffer(3, BufferHA_Close, INDICATOR_DATA);
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SetIndexBuffer(4, BufferColor, INDICATOR_COLOR_INDEX);
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//--- Set indicator properties
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IndicatorSetInteger(INDICATOR_DIGITS, _Digits); // Use the same precision as the symbol
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IndicatorSetString(INDICATOR_SHORTNAME, "Heiken Ashi");
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PlotIndexSetDouble(0, PLOT_EMPTY_VALUE, 0.0); // Define the empty value for the plot
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}
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//+------------------------------------------------------------------+
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//| Heiken Ashi calculation function. |
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//| Called on every new tick or new bar. |
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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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//--- Check if there is enough historical data
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if(rates_total < 2)
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return(0);
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//--- STEP 1: Calculate Heiken Ashi bars using our toolkit
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// We use a full recalculation (prev_calculated=0) for maximum stability
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if(!g_ha_calculator.Calculate(rates_total, 0, open, high, low, close))
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{
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Print("Heiken Ashi calculation failed in OnCalculate.");
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return(0);
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}
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//--- STEP 2: Copy data from the calculator and set colors
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// The main loop iterates through all bars to ensure data consistency
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for(int i = 0; i < rates_total; i++)
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{
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// Copy the calculated HA values from our toolkit to the indicator's buffers
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BufferHA_Open[i] = g_ha_calculator.ha_open[i];
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BufferHA_High[i] = g_ha_calculator.ha_high[i];
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BufferHA_Low[i] = g_ha_calculator.ha_low[i];
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BufferHA_Close[i] = g_ha_calculator.ha_close[i];
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//--- Set the color for the current candle
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// Color index 0 (clrDodgerBlue) for bullish candles
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// Color index 1 (clrMaroon) for bearish candles
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if(BufferHA_Open[i] < BufferHA_Close[i])
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BufferColor[i] = 0.0; // Bullish
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else
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BufferColor[i] = 1.0; // Bearish
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}
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//--- Return value of prev_calculated for the next call
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return(rates_total);
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}
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//+------------------------------------------------------------------+
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//+------------------------------------------------------------------+
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