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https://github.com/softwaredevelop/mql5.git
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Toh4iem9
127 lines
4.6 KiB
Plaintext
127 lines
4.6 KiB
Plaintext
//+------------------------------------------------------------------+
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//| StandardDeviationChannel.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 "1.01" // Added color selection
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#property description "Draws a Standard Deviation Channel (based on Linear Regression)."
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#property indicator_chart_window
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#property indicator_buffers 0
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#property indicator_plots 0
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//--- Input Parameters ---
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input int InpRegressionPeriod = 100;
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input double InpDeviations = 2.0;
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input color InpChannelColor = clrRed; // Channel color
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input group "Channel Extensions"
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input bool InpRayRight = false;
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input bool InpRayLeft = false;
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//--- Global Variables ---
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int g_ExtPeriod;
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double g_ExtDeviations;
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string g_channel_name;
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datetime g_last_update_time;
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//+------------------------------------------------------------------+
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//| Custom indicator initialization function. |
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//+------------------------------------------------------------------+
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int OnInit()
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{
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g_ExtPeriod = (InpRegressionPeriod < 2) ? 2 : InpRegressionPeriod;
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g_ExtDeviations = (InpDeviations <= 0) ? 2.0 : InpDeviations;
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g_channel_name = "StdDevChannel_" + IntegerToString(ChartID()) + "_" + IntegerToString(GetTickCount());
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g_last_update_time = 0;
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IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("StdDev Ch(%d, %.1f)", g_ExtPeriod, g_ExtDeviations));
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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 function. |
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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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ObjectDelete(0, g_channel_name);
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ChartRedraw();
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}
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//+------------------------------------------------------------------+
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//| Timer event handler. |
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//+------------------------------------------------------------------+
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void OnTimer()
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{
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UpdateChannel();
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}
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//+------------------------------------------------------------------+
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//| Main calculation function. |
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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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if(rates_total < g_ExtPeriod)
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return(0);
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datetime last_bar_time = time[rates_total - 1];
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if(last_bar_time > g_last_update_time)
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{
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UpdateChannel();
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g_last_update_time = last_bar_time;
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}
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return(rates_total);
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}
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//+------------------------------------------------------------------+
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//| Updates the position and properties of the channel. |
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//+------------------------------------------------------------------+
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void UpdateChannel()
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{
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if(Bars(_Symbol, _Period) < g_ExtPeriod)
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return;
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datetime time1 = iTime(_Symbol, _Period, g_ExtPeriod - 1);
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datetime time2 = iTime(_Symbol, _Period, 0);
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if(ObjectFind(0, g_channel_name) < 0)
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{
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if(!ObjectCreate(0, g_channel_name, OBJ_STDDEVCHANNEL, 0, time1, 0, time2, 0))
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{
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Print("Error creating std dev channel object: ", GetLastError());
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return;
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}
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ObjectSetInteger(0, g_channel_name, OBJPROP_STYLE, STYLE_SOLID);
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ObjectSetInteger(0, g_channel_name, OBJPROP_FILL, false);
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ObjectSetInteger(0, g_channel_name, OBJPROP_SELECTABLE, false);
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}
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ObjectSetInteger(0, g_channel_name, OBJPROP_TIME, 0, time1);
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ObjectSetInteger(0, g_channel_name, OBJPROP_TIME, 1, time2);
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ObjectSetDouble(0, g_channel_name, OBJPROP_DEVIATION, g_ExtDeviations);
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ObjectSetInteger(0, g_channel_name, OBJPROP_RAY_RIGHT, InpRayRight);
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ObjectSetInteger(0, g_channel_name, OBJPROP_RAY_LEFT, InpRayLeft);
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// --- FIX: Set color based on input ---
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ObjectSetInteger(0, g_channel_name, OBJPROP_COLOR, InpChannelColor);
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ChartRedraw();
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}
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//+------------------------------------------------------------------+
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//+------------------------------------------------------------------+
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