//+------------------------------------------------------------------+
//|                             AlligatorAndStochastic histogram.mq5 |
//|                              Copyright © 2018, Vladimir Karputov |
//|                                           http://wmua.ru/slesar/ |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2018, Vladimir Karputov"
#property link      "http://wmua.ru/slesar/"
#property version   "1.001"
#property indicator_separate_window
#property indicator_buffers 2 
#property indicator_plots   1 
#property indicator_type1   DRAW_COLOR_HISTOGRAM
#property indicator_color1  clrMediumPurple,clrNONE,clrLawnGreen 
#property indicator_style1  STYLE_SOLID 
#property indicator_width1  1 
double    Color_HistogramBuffer[];  // a buffer of values 
double    Color_HistogramColors[];  // a buffer of color indexes 
//--- input parameters
input int                  Inp_Alligator_jaw_period   = 13;          // Alligator: period for the calculation of jaws 
input int                  Inp_Alligator_jaw_shift    = 8;           // Alligator: horizontal shift of jaws 
input int                  Inp_Alligator_teeth_period = 8;           // Alligator: period for the calculation of teeth 
input int                  Inp_Alligator_teeth_shift  = 5;           // Alligator: horizontal shift of teeth 
input int                  Inp_Alligator_lips_period  = 5;           // Alligator: period for the calculation of lips 
input int                  Inp_Alligator_lips_shift   = 3;           // Alligator: horizontal shift of lips 
input ENUM_MA_METHOD       Inp_Alligator_ma_method    = MODE_SMMA;   // Alligator: type of smoothing 
input ENUM_APPLIED_PRICE   Inp_Alligator_applied_price= PRICE_MEDIAN;// Alligator: type of price 
//---
input int                  Inp_Stochastic_Kperiod     = 5;           // Stochastic: K-period (number of bars for calculations) 
input int                  Inp_Stochastic_Dperiod     = 3;           // Stochastic: D-period (period of first smoothing) 
input int                  Inp_Stochastic_slowing     = 3;           // Stochastic: final smoothing 
input ENUM_MA_METHOD       Inp_Stochastic_ma_method   = MODE_SMA;    // Stochastic: type of smoothing 
input ENUM_STO_PRICE       Inp_Stochastic_price_field = STO_LOWHIGH; // Stochastic: stochastic calculation method 
//---
input datetime             Inp_time_open_start        = D'1970.01.01 08:59:00';  // Time to open positions start
input datetime             Inp_time_open_end          = D'1970.01.01 10:59:00';  // Time to open positions end
input datetime             Inp_time_close_start       = D'1970.01.01 19:59:00';  // Time to close positions start
input datetime             Inp_time_close_end         = D'1970.01.01 21:59:00';  // Time to close positions end
//---
MqlDateTime SOpenStart;
MqlDateTime SOpenEnd;
MqlDateTime SCloseStart;
MqlDateTime SCloseEnd;
long open_start;
long open_end;
long close_start;
long close_end;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
  {
//--- check input parameters
   TimeToStruct(Inp_time_open_start,SOpenStart);
   TimeToStruct(Inp_time_open_end,SOpenEnd);
   TimeToStruct(Inp_time_close_start,SCloseStart);
   TimeToStruct(Inp_time_close_end,SCloseEnd);
   open_start  = SOpenStart.hour*3600+SOpenStart.min*60+SOpenStart.sec;
   open_end    = SOpenEnd.hour*3600+SOpenEnd.min*60+SOpenEnd.sec;
   close_start = SCloseStart.hour*3600+SCloseStart.min*60+SCloseStart.sec;
   close_end   = SCloseEnd.hour*3600+SCloseEnd.min*60+SCloseEnd.sec;
   if(open_start>=open_end)
     {
      Print(__FUNCTION__,
            " ERROR: \"Time to open positions start\" (",TimeToString(Inp_time_open_start,TIME_SECONDS),
            ") >= \"Time to open positions end\" (",TimeToString(Inp_time_open_end,TIME_SECONDS),")");
      return(INIT_PARAMETERS_INCORRECT);
     }
   if(close_start>=close_end)
     {
      Print(__FUNCTION__,
            " ERROR: \"Time to close positions start\" (",TimeToString(Inp_time_close_start,TIME_SECONDS),
            ") >= \"Time to close positions end\" (",TimeToString(Inp_time_close_end,TIME_SECONDS),")");
      return(INIT_PARAMETERS_INCORRECT);
     }
   if(open_end>=close_start)
     {
      Print(__FUNCTION__,
            " ERROR: \"Time to open positions end\" (",TimeToString(Inp_time_open_end,TIME_SECONDS),
            ") >= \"Time to close positions start\" (",TimeToString(Inp_time_close_start,TIME_SECONDS),")");
      return(INIT_PARAMETERS_INCORRECT);
     }
//--- print time's
   Print("\"Time to open  positions start\": ",TimeToString(Inp_time_open_start,TIME_SECONDS));
   Print("\"Time to open  positions end\"  : ",TimeToString(Inp_time_open_end,TIME_SECONDS));
   Print("\"Time to close positions start\": ",TimeToString(Inp_time_close_start,TIME_SECONDS));
   Print("\"Time to close positions end\"  : ",TimeToString(Inp_time_close_end,TIME_SECONDS));
   Print("//---");
//--- indicator buffers mapping
   SetIndexBuffer(0,Color_HistogramBuffer,INDICATOR_DATA);
   SetIndexBuffer(1,Color_HistogramColors,INDICATOR_COLOR_INDEX);
   IndicatorSetInteger(INDICATOR_DIGITS,0);
//---
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| 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 limit=prev_calculated-1;
   if(prev_calculated==0)
      limit=0;
   MqlDateTime STime;
   for(int i=limit;i<rates_total;i++)
     {
      TimeToStruct(time[i],STime);
      long long_time=STime.hour*3600+STime.min*60+STime.sec;
      if(open_start<=long_time && long_time<=open_end)
        {
         Color_HistogramBuffer[i]=1.0;
         Color_HistogramColors[i]=0;
        }
      if(open_end<long_time && long_time<close_start)
        {
         Color_HistogramBuffer[i]=0.0;
         Color_HistogramColors[i]=1;
        }
      if(close_start<=long_time && long_time<=close_end)
        {
         Color_HistogramBuffer[i]=-1.0;
         Color_HistogramColors[i]=2;
        }
     }
//--- return value of prev_calculated for next call
   return(rates_total);
  }
//+------------------------------------------------------------------+