//+------------------------------------------------------------------+
//|                                                        Ticks.mq4 |
//|                                                       MetaQuotes |
//|                    http://www.alpari-idc.ru/ru/experts/articles/ |
//+------------------------------------------------------------------+
#property copyright "Rosh"
#property link      "http://www.alpari-idc.ru/ru/experts/articles/"
 
#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 Navy
//---- buffers
extern int MaxDrawTicks=500;
double ExtMapBuffer1[];
int myBars;
int tickCounter;
int delimeterCounter;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   SetIndexStyle(0,DRAW_LINE);
   SetIndexBuffer(0, ExtMapBuffer1);
   SetIndexEmptyValue(0,0.0);
   Print("???????? ????");
   for (int i=Bars-1;i>=0;i--) ExtMapBuffer1[i]=0.0;
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| ??????? ??????                                                   |
//+------------------------------------------------------------------+
void SetDelimeter()
  {
//----
   string delimeterDate=TimeToStr(Time[0]);
   if (myBars!=0)
      {
      Print("?????? ???????????");      
      int handle=WindowFind("Ticks");
      if(!ObjectCreate(delimeterDate,OBJ_VLINE,handle,Time[0],0))
         {
         Alert("???????? ??????? ???????? ??????????? ? ???? ",
         handle," ?? ??????? ",TimeToStr(CurTime()));
         Print("?????? ?",GetLastError(),", ??? ??????????? ",delimeterDate);
         }
      else 
         {
         ObjectSet(delimeterDate,OBJPROP_COLOR,DarkGreen);
         ObjectSet(delimeterDate,OBJPROP_STYLE,STYLE_DASHDOT);
         ObjectsRedraw();
         }
      }
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| ??????? ??????                                                   |
//+------------------------------------------------------------------+
void ShiftArray()
  {
//----
   int V_lines;
   string delimeterName;
   datetime firstTime;
   int BarFirstTime;
   
   if (tickCounter>2*MaxDrawTicks)
      {
      for (int i=tickCounter;i>=MaxDrawTicks;i--) ExtMapBuffer1[i]=0.0;
      tickCounter=MaxDrawTicks;
      }
   for(int cnt=tickCounter;cnt>0;cnt--)
      {
      ExtMapBuffer1[cnt]=ExtMapBuffer1[cnt-1];
      }
   V_lines=ObjectsTotal();
   for (int z=0;z<V_lines;z++)
      {
      delimeterName=ObjectName(z); 
      if (ObjectFind(delimeterName)!=-1)
         {
         if (ObjectType(delimeterName)==OBJ_VLINE) 
            {
            firstTime=ObjectGet(delimeterName,OBJPROP_TIME1);
            BarFirstTime=iBarShift(NULL,0,firstTime);
            firstTime=Time[BarFirstTime+1];
            ObjectSet(delimeterName,OBJPROP_TIME1,firstTime); 
            }
         }       
      }
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| ??????? ?????? ????                                              |
//+------------------------------------------------------------------+
bool isNewBar()
  {
//----
   bool res=false;
   if (myBars!=Bars)
      {
      res=true;
      myBars=Bars;
      }   
//----
   return(res);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   int    counted_bars=IndicatorCounted();
//----
   if (isNewBar())
      {
      // ?????????? ???????????
      tickCounter++;
      SetDelimeter();
      ExtMapBuffer1[0]=Bid;      
      }
   else
      
      {
      tickCounter++;
      ShiftArray();
      ExtMapBuffer1[0]=Bid;      
      }      
//----
   return(0);
  }
//+------------------------------------------------------------------+