//+------------------------------------------------------------------+
//|                                                     UltraWPR.mq5 |
//|                                   Copyright © 2008, dm34@mail.ru | 
//|                                    http://www.fxexpert.ru/forum/ | 
//+------------------------------------------------------------------+
//---- author of the indicator
#property copyright "Copyright © 2008, dm34@mail.ru"
//---- link to the website of the author
#property link "http://www.fxexpert.ru/forum/"
//---- indicator version
#property version   "1.00"
//---- drawing the indicator in a separate window
#property indicator_separate_window
//---- two buffers are used for calculation and drawing the indicator
#property indicator_buffers 2
//---- one plot is used
#property indicator_plots   1
//+-----------------------------------+ 
//|  Declaration of constants         |
//+-----------------------------------+ 
#define RESET 0 // the constant for getting the command for the indicator recalculation back to the terminal
//+-----------------------------------+
//|  Filling drawing parameters       |
//+-----------------------------------+
//---- drawing indicator as a filling between two lines
#property indicator_type1   DRAW_FILLING
//---- green and magenta colors are used as the indicator filling colors
#property indicator_color1  Lime, Magenta
//---- displaying the indicator label
#property indicator_label1 "Ultra WPR"
//+-----------------------------------+
//|  CXMA class description           |
//+-----------------------------------+
#include <SmoothAlgorithms.mqh> 
//+-----------------------------------+
//---- declaration of the CXMA class variables from the SmoothAlgorithms.mqh file
CXMA XMA[];
//+-----------------------------------+
//|  Declaration of enumerations      |
//+-----------------------------------+
/*enum Smooth_Method - enumeration is declared in the SmoothAlgorithms.mqh file
  {
   MODE_SMA_,  // SMA
   MODE_EMA_,  // EMA
   MODE_SMMA_, // SMMA
   MODE_LWMA_, // LWMA
   MODE_JJMA,  // JJMA
   MODE_JurX,  // JurX
   MODE_ParMA, // ParMA
   MODE_T3,    // T3
   MODE_VIDYA, // VIDYA
   MODE_AMA,   // AMA
  }; */
//+-----------------------------------+
//|  Declaration of enumeration       |
//+-----------------------------------+  
enum WIDTH
  {
   Width_1=1, // 1
   Width_2,   // 2
   Width_3,   // 3
   Width_4,   // 4
   Width_5    // 5
  };
//+-----------------------------------+
//|  Declaration of enumeration       |
//+-----------------------------------+
enum STYLE
  {
   SOLID_,       // Solid line
   DASH_,        // Dashed line
   DOT_,         // Dotted line
   DASHDOT_,     // Dot-dash line
   DASHDOTDOT_   // Dot-dash line with double dots
  };
//+----------------------------------------------+
//|  Indicator input parameters                  |
//+----------------------------------------------+
input int WPR_Period=13;                    // WPR indicator period
//----
input Smooth_Method W_Method=MODE_JJMA;     // Smoothing method
input int StartLength=3;                    // Initial smoothing period                    
input int WPhase=100;                       // Smoothing parameter
//----  
input uint Step=5;                          // Period change step
input uint StepsTotal=10;                   // Number of period changes
//----
input Smooth_Method SmoothMethod=MODE_JJMA; // Smoothing method
input int SmoothLength=3;                   // Smoothing depth                    
input int SmoothPhase=100;                  // Smoothing parameter
//----                          
input uint UpLevel=80;                      // Overbought level, %
input uint DnLevel=20;                      // Oversold level, %
input color UpLevelsColor=Blue;             // Overbought level color
input color DnLevelsColor=Blue;             // Oversold level color
input STYLE Levelstyle=DASH_;               // Levels style
input WIDTH  LevelsWidth=Width_1;           // Levels width
//+----------------------------------------------+
//---- declaration of dynamic arrays that
//---- will be used as indicator buffers
double BullsBuffer[];
double BearsBuffer[];
//---- declaration of the variables array for storing WPR indicator signal lines periods
int period[];
//---- declaration of variables arrays for the WPR indicator values storage
double xwpr0[],xwpr1[];
//---- declaration of integer variables for the indicators handles
int WPR_Handle;
//---- declaration of the integer variables for the start of data calculation
uint StTot1,StTot2;
int min_rates_total,min_rates_wpr,min_rates_xma;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+  
int OnInit()
  {
//---- memory distribution for variables' arrays
   int size=int(StepsTotal+3);
   if(ArrayResize(XMA,size)<size) Print("Failed to distribute the memory for XMA[] array");
   size-=2;
   if(ArrayResize(xwpr0,size)<size) Print("Failed to distribute the memory for xwpr0[] array");
   if(ArrayResize(xwpr1,size)<size) Print("Failed to distribute the memory for xwpr1[] array");
   if(ArrayResize(period,size)<size) Print("Failed to distribute the memory for period[] array");

   ZeroMemory(xwpr0);
   ZeroMemory(xwpr1);
   ZeroMemory(period);

//---- initialization of variables
   for(int sm=int(StepsTotal); sm>=0 && !IsStopped(); sm--) period[sm]=int(StartLength+sm*Step);

//---- setting up alerts for unacceptable values of external variables
   XMA[0].XMALengthCheck("StartLength", StartLength);
   XMA[0].XMAPhaseCheck("WPhase", WPhase, W_Method);
   XMA[0].XMALengthCheck("SmoothLength", SmoothLength);
   XMA[0].XMAPhaseCheck("SmoothPhase", SmoothPhase, SmoothMethod);

//---- initialization of variables of the start of data calculation
   min_rates_wpr=WPR_Period;
   min_rates_xma=min_rates_wpr+XMA[0].GetStartBars(W_Method,StartLength+Step*StepsTotal,WPhase)+1;
   min_rates_total=min_rates_xma+XMA[0].GetStartBars(SmoothMethod,SmoothLength,SmoothPhase);
   StTot1=StepsTotal+1;
   StTot2=StepsTotal+2;

//---- getting handle of the WPR indicator
   WPR_Handle=iWPR(NULL,0,WPR_Period);
   if(WPR_Handle==INVALID_HANDLE)
     {
      Print(" Failed to get handle of the WPR indicator");
      return(1);
     }

//---- set BullsBuffer[] dynamic array as an indicator buffer
   SetIndexBuffer(0,BullsBuffer,INDICATOR_DATA);
//---- performing shift of the beginning of counting of drawing the indicator 1 by min_rates_total
   PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,min_rates_total);
//---- indexing the elements in the buffer as timeseries
   ArraySetAsSeries(BullsBuffer,true);

//---- set BearsBuffer[] dynamic array as an indicator buffer
   SetIndexBuffer(1,BearsBuffer,INDICATOR_DATA);
//---- performing shift of the beginning of counting of drawing the indicator 2 by min_rates_total
   PlotIndexSetInteger(1,PLOT_DRAW_BEGIN,min_rates_total);
//---- indexing the elements in the buffer as timeseries
   ArraySetAsSeries(BearsBuffer,true);

//---- initializations of a variable for the indicator short name
   string shortname="Ultra WPR";
//--- creation of the name to be displayed in a separate sub-window and in a tooltip
   IndicatorSetString(INDICATOR_SHORTNAME,shortname);
//--- determination of accuracy of displaying the indicator values
   IndicatorSetInteger(INDICATOR_DIGITS,2);

//---- lines drawing parameters  
   IndicatorSetInteger(INDICATOR_LEVELS,2);

   IndicatorSetDouble(INDICATOR_LEVELVALUE,0,StepsTotal*UpLevel/100);
   IndicatorSetInteger(INDICATOR_LEVELCOLOR,0,UpLevelsColor);
   IndicatorSetInteger(INDICATOR_LEVELSTYLE,0,Levelstyle);
   IndicatorSetInteger(INDICATOR_LEVELWIDTH,0,LevelsWidth);

   IndicatorSetDouble(INDICATOR_LEVELVALUE,1,StepsTotal*DnLevel/100);
   IndicatorSetInteger(INDICATOR_LEVELCOLOR,1,DnLevelsColor);
   IndicatorSetInteger(INDICATOR_LEVELSTYLE,1,Levelstyle);
   IndicatorSetInteger(INDICATOR_LEVELWIDTH,1,LevelsWidth);
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,    // number of bars in history at the current tick
                const int prev_calculated,// number of bars calculated at previous call
                const datetime &time[],
                const double &open[],
                const double& high[],     // price array of maximums of price for the indicator calculation
                const double& low[],      // price array of minimums of price for the indicator calculation
                const double &close[],
                const long &tick_volume[],
                const long &volume[],
                const int &spread[])
  {
//---- checking the number of bars to be enough for the calculation
   if(BarsCalculated(WPR_Handle)<rates_total
      || rates_total<min_rates_total)
      return(RESET);

//---- declaration of local variables 
   int to_copy,limit,bar,maxbar1,maxbar2;
   double WPR[],upsch,dnsch;

//---- calculation of maxbar initial index for the XMASeries() function
   maxbar1=rates_total-1-min_rates_wpr;
   maxbar2=rates_total-1-min_rates_xma;

//---- calculation of the 'limit' starting index for the bars recalculation loop
   if(prev_calculated>rates_total || prev_calculated<=0)// checking for the first start of the indicator calculation
      limit=maxbar1;                       // starting index for calculation of all bars
   else limit=rates_total-prev_calculated; // starting index for calculation of new bars
//----   
   to_copy=limit+2;
//--- copy newly appeared data in the arrays
   if(CopyBuffer(WPR_Handle,0,0,to_copy,WPR)<=0) return(RESET);

//---- indexing elements in arrays as time series  
   ArraySetAsSeries(WPR,true);

//---- main indicator calculation loop
   for(bar=limit; bar>=0 && !IsStopped(); bar--)
     {
      for(int sm=int(StepsTotal); sm>=0 && !IsStopped(); sm--)
         xwpr0[sm]=XMA[sm].XMASeries(maxbar1,prev_calculated,rates_total,W_Method,WPhase,period[sm],WPR[bar],bar,true);

      if(bar>maxbar2)
        {
         if(bar) ArrayCopy(xwpr1,xwpr0,0,0,WHOLE_ARRAY);
         continue;
        }

      upsch=0;
      dnsch=0;
      for(int sm=int(StepsTotal); sm>=0 && !IsStopped(); sm--)
         if(xwpr0[sm]>xwpr1[sm]) upsch++;
      else                    dnsch++;

      BullsBuffer[bar]=XMA[StTot1].XMASeries(maxbar2,prev_calculated,rates_total,SmoothMethod,SmoothPhase,SmoothLength,upsch,bar,true);
      BearsBuffer[bar]=XMA[StTot2].XMASeries(maxbar2,prev_calculated,rates_total,SmoothMethod,SmoothPhase,SmoothLength,dnsch,bar,true);

      if(bar) ArrayCopy(xwpr1,xwpr0,0,0,WHOLE_ARRAY);
     }
//----     
   return(rates_total);
  }
//+------------------------------------------------------------------+