Test_CHVOnArray

//+------------------------------------------------------------------+
//|                                              Test_CHVOnArray.mq5 |
//|                        Copyright 2011, MetaQuotes Software Corp. |
//|                                              http://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2011, MetaQuotes Software Corp."
#property link      "http://www.mql5.com"
#property version   "1.00"
#property indicator_separate_window
#property indicator_buffers 5
#property indicator_plots   1
//--- plot Label1
#property indicator_label1  "Label1"
#property indicator_type1   DRAW_LINE
#property indicator_color1  clrRed
#property indicator_style1  STYLE_SOLID
#property indicator_width1  1
//--- input parameters
input int            CHVPeriod   =  10;
input int            CHVSmPeriod =  10;
input ENUM_MA_METHOD CHVSmMehod  =  MODE_EMA;
//--- indicator buffers
double         CHVBuffer[];
double         DataHigh[];
double         DataLow[];
double         R[];
double         RS[];

#include <IncOnArray/IncCHVOnArray.mqh>
CCHVOnArray chv;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
  {
   chv.Init(CHVPeriod,CHVSmPeriod,CHVSmMehod);

//--- indicator buffers mapping
   SetIndexBuffer(0,CHVBuffer,INDICATOR_DATA);
   SetIndexBuffer(1,DataHigh,INDICATOR_CALCULATIONS);
   SetIndexBuffer(2,DataLow,INDICATOR_CALCULATIONS);
   SetIndexBuffer(3,R,INDICATOR_CALCULATIONS);
   SetIndexBuffer(4,RS,INDICATOR_CALCULATIONS);

   PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,chv.BarsRequired());
   PlotIndexSetString(0,PLOT_LABEL,chv.Name());

//---
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
                const int prev_calculated,
                const datetime &time[],
                const double &open[],
                const double &high[],
                const double &low[],
                const double &close[],
                const long &tick_volume[],
                const long &volume[],
                const int &spread[])
  {
   int start;
   if(prev_calculated>0)
     {
      start=prev_calculated-1;
     }
   else
     {
      start=0;
     }
   for(int i=start;i<rates_total;i++)
     {
      DataHigh[i]=high[i];
      DataLow[i]=low[i];
     }

   chv.Solve(rates_total,prev_calculated,DataHigh,DataLow,R,RS,CHVBuffer);

   return(rates_total);
  }
//+------------------------------------------------------------------+