Coding for Dummies
117 lines
4.1 KiB
Plaintext
117 lines
4.1 KiB
Plaintext
//+------------------------------------------------------------------+
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//| BB_Price_on_channel.mq5 |
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//| Copyright 2009, MetaQuotes Software Corp. |
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//| http://www.mql5.com |
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//+------------------------------------------------------------------+
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#property copyright "2009, MetaQuotes Software Corp."
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#property link "http://www.mql5.com"
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#property version "1.00"
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#property indicator_separate_window
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#property indicator_buffers 8
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#property indicator_plots 3
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//---- plot MA
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#property indicator_label1 "Bollinger High"
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#property indicator_type1 DRAW_LINE
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#property indicator_color1 clrRed
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#property indicator_style1 STYLE_SOLID
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#property indicator_width1 1
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#property indicator_label2 "Open;High;Low;Close"
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#property indicator_type2 DRAW_BARS
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#property indicator_color2 clrBlue
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#property indicator_style2 STYLE_SOLID
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#property indicator_width2 1
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#property indicator_label3 "Bollinger Low"
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#property indicator_type3 DRAW_LINE
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#property indicator_color3 clrRed
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#property indicator_style3 STYLE_SOLID
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#property indicator_width3 1
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#property indicator_level1 50
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#property indicator_level2 -50
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//--- input parameters
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input int period=15;
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input double deviation=2;
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input ENUM_APPLIED_PRICE price=PRICE_WEIGHTED;
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//--- indicator buffers
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double MABuffer[];
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double MABuffer2[];
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double BolingerBuffer[];
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double BolingerBuffer_l[];
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double BarsBuffer1[];
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double BarsBuffer2[];
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double BarsBuffer3[];
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double BarsBuffer4[];
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int ma_handle;
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string symbol;
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int indx1=100000;
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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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//--- indicator buffers mapping
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SetIndexBuffer(0,BolingerBuffer,INDICATOR_DATA);
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SetIndexBuffer(1,BarsBuffer1,INDICATOR_DATA);
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SetIndexBuffer(2,BarsBuffer2,INDICATOR_DATA);
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SetIndexBuffer(3,BarsBuffer3,INDICATOR_DATA);
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SetIndexBuffer(4,BarsBuffer4,INDICATOR_DATA);
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SetIndexBuffer(5,BolingerBuffer_l,INDICATOR_DATA);
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IndicatorSetInteger(INDICATOR_DIGITS,0);
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SetIndexBuffer(6,MABuffer,INDICATOR_CALCULATIONS);
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SetIndexBuffer(7,MABuffer2,INDICATOR_CALCULATIONS);
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symbol=_Symbol;
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//--- set short name
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IndicatorSetString(INDICATOR_SHORTNAME,"Bolkinger View ("+symbol+"): "" ");
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//---
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ma_handle=iBands(Symbol(),0,period,0,deviation,price);
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return(0);
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}
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//+------------------------------------------------------------------+
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//| Custom indicator iteration 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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//--- check if all data calculated
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if(BarsCalculated(ma_handle)<rates_total) return(0);
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//--- we can copy not all data
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int to_copy;
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if(prev_calculated>rates_total || prev_calculated<=0) to_copy=rates_total;
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else
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{
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to_copy=rates_total-prev_calculated;
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//--- last value is always copied
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to_copy++;
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}
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//--- try to copy
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CopyBuffer(ma_handle,0,0,to_copy,MABuffer);
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CopyBuffer(ma_handle,1,0,to_copy,MABuffer2);
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//--- calculate
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for(int i=0;i<rates_total && !IsStopped();i++)
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{
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BolingerBuffer[i]=(MABuffer2[i]-MABuffer[i])*indx1;
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BolingerBuffer_l[i]=-BolingerBuffer[i];
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BarsBuffer1[i]=(open[i]-MABuffer[i])*indx1;
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BarsBuffer2[i]=(high[i]-MABuffer[i])*indx1;
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BarsBuffer3[i]=(low[i]-MABuffer[i])*indx1;
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BarsBuffer4[i]=(close[i]-MABuffer[i])*indx1;
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}
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return(rates_total);
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}
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//+------------------------------------------------------------------+
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