//+-------------------------------------------------------------------+
//|                                       MF_Sessions Times 0-002.mq4 |
//|                                       Copyright © Zhunko          |
//|                                                                   |
//|                                                                   |
//|                                       MF ZHUNKO zhunko@mail.ru    |
//+-------------------------------------------------------------------+
//| Nicaai ia iniiaa eiaeeaoi?a :                                     |
//|                                                   i-Sessions.mq4  |
//|                                           Eei Eai?u A. aka KimIV  |
//|                                              http://www.kimiv.ru  |
//|                                                                   |
//|  16.11.2005  Eiaeeaoi? oi?aiauo nannee                            |
//+-------------------------------------------------------------------+
//| Ia?aee??aoaee :                                                   |
//| extern bool   Time_Summer  = true   ;                             |
//| extern int    Time_MT4_GMT = 2      ;                             |
//| aoaoo ?aaioaou oieuei anee noiia?iia a?aiy ia aoaao i?aauoaou     |
//| 24:00. A iniiaiii yoi eanaaony eiioa aia?eeaineie nannee.         |
//+-------------------------------------------------------------------+
//|                    ECIAIAIE? e AIIIEIAIE?.                        |
//| 1.Aiiieiaiey a aa?nee MF_Sessions Times 0-001 io 11.09.2006 .     |
//| 1.1.Aaaaaia iano?ieea ?acieou a?aiaie ia?ao IO4 e GMT.            |
//| 1.2.Aaaa?i ia?aee??aoaeu ceiiaa/eaoiaa a?aiy.                     |
//| 2.Aiiieiaiey a aa?nee MF_Sessions Times 0-002 io 10.10.2006 .     |
//| 2.1.Ia?aaaeai ia?aee??aoaeu "ceiiaa/eaoiaa a?aiy".                |
//+-------------------------------------------------------------------+
#property copyright "Copyright © 2006 Zhunko"
#property link      "zhunko@mail.ru"

#property indicator_chart_window

//------- Aiaoiea ia?aiao?u eiaeeaoi?a -------------------------------
extern bool   Time_Summer        = false  ;    // false - ceiiaa a?aiy / true - eaoiaa a?aiy.
extern int    Time_MT4_GMT       = 1      ;    // ?acieoa a?aiaie a ?anao ia?ao IO4 e GMT.
extern int    NumberOfDays       = 30     ;    // Eiee?anoai aiae.
extern string AsiaBegin          = "00:00";    // Ioe?uoea aceaoneie nannee.
extern string AsiaEnd            = "08:00";    // Cae?uoea aceaoneie nannee.
extern color  AsiaColor          = C'46,24,24';// Oaao aceaoneie nannee.
extern string EurBegin           = "07:00";    // Ioe?uoea aa?iiaeneie nannee.
extern string EurEnd             = "17:00";    // Cae?uoea aa?iiaeneie nannee.
extern color  EurColor           = C'26,36,40';// Oaao aa?iiaeneie nannee.
extern string USABegin           = "13:00";    // Ioe?uoea aia?eeaineie nannee.
extern string USAEnd             = "22:00";    // Cae?uoea aia?eeaineie nannee.
extern color  USAColor           = C'19,44,16';// Oaao aia?eeaineie nannee.
//--------------------------------------------------------------------
int  TWS; 
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
void init()
 {
  DeleteObjects();
  for (int i=0; i<NumberOfDays; i++)
   {
    CreateObjects ("AS"+i, AsiaColor);
    CreateObjects ("EU"+i, EurColor);
    CreateObjects ("US"+i, USAColor);
   }
 }
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function                       |
//+------------------------------------------------------------------+
void deinit()
 {
  DeleteObjects();
 }
//+------------------------------------------------------------------+
//| Nicaaiea iauaeoia eiaeeaoi?a                                     |
//| Ia?aiao?u:                                                       |
//|   no - iaeiaiiaaiea iauaeoa                                      |
//|   cl - oaao iauaeoa                                              |
//+------------------------------------------------------------------+
void CreateObjects (string no, color cl)
 {
  ObjectCreate(no, OBJ_RECTANGLE, 0, 0,0, 0,0);
  ObjectSet(no, OBJPROP_STYLE, STYLE_SOLID);
  ObjectSet(no, OBJPROP_COLOR, cl);
  ObjectSet(no, OBJPROP_BACK, True);
 }
//+------------------------------------------------------------------+
//| Oaaeaiea iauaeoia eiaeeaoi?a                                     |
//+------------------------------------------------------------------+
void DeleteObjects()
 {
  for (int i = 0; i < NumberOfDays; i++)
   {
    ObjectDelete("AS" + i);
    ObjectDelete("EU" + i);
    ObjectDelete("US" + i);
   }
 }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
void start()
 {
  datetime dt = CurTime();
  if (Time_Summer == true) TWS = 3600;
  else TWS = 0;
  for (int i = 0; i < NumberOfDays; i++) 
   {
    DrawObjects(dt, "AS"+i, TimeToStr (StrToTime (AsiaBegin) +Time_MT4_GMT * 3600,       TIME_MINUTES), TimeToStr (StrToTime (AsiaEnd) + Time_MT4_GMT * 3600, TIME_MINUTES));
    DrawObjects(dt, "EU"+i, TimeToStr (StrToTime (EurBegin)  +Time_MT4_GMT * 3600 - TWS, TIME_MINUTES), TimeToStr (StrToTime (EurEnd ) + Time_MT4_GMT * 3600 - TWS, TIME_MINUTES));
    DrawObjects(dt, "US"+i, TimeToStr (StrToTime (USABegin)  +Time_MT4_GMT * 3600 - TWS, TIME_MINUTES), TimeToStr (StrToTime (USAEnd ) + Time_MT4_GMT * 3600 - TWS, TIME_MINUTES));
    dt=decDateTradeDay(dt);
    while (TimeDayOfWeek (dt) > 5) dt = decDateTradeDay (dt);
   }
 }
//+------------------------------------------------------------------+
//| I?i?eniaea iauaeoia ia a?aoeea                                   |
//| Ia?aiao?u:                                                       |
//|   dt - aaoa oi?aiaiai aiy                                        |
//|   no - iaeiaiiaaiea iauaeoa                                      |
//|   tb - a?aiy ia?aea nannee                                       |
//|   te - a?aiy ieii?aiey nannee                                    |
//+------------------------------------------------------------------+
void DrawObjects (datetime dt, string no, string tb, string te)
 {
  datetime t1, t2;
  double   p1, p2;
  int      b1, b2;

  t1 = StrToTime (StringConcatenate (TimeToStr (dt, TIME_DATE), " ", tb));
  t2 = StrToTime (StringConcatenate (TimeToStr (dt, TIME_DATE), " ", te));
  b1 = iBarShift (NULL, 0, t1);
  b2 = iBarShift (NULL, 0, t2);
  p1 = High[Highest (NULL, 0, MODE_HIGH, b1-b2, b2)];
  p2 = Low [Lowest (NULL, 0, MODE_LOW , b1-b2, b2)];
  ObjectSet (no, OBJPROP_TIME1 , t1);
  ObjectSet (no, OBJPROP_PRICE1, p1);
  ObjectSet (no, OBJPROP_TIME2 , t2);
  ObjectSet (no, OBJPROP_PRICE2, p2);
 }
//+------------------------------------------------------------------+
//| Oiaiuoaiea aaou ia iaei oi?aiaue aaiu                            |
//| Ia?aiao?u:                                                       |
//|   dt - aaoa oi?aiaiai aiy                                        |
//+------------------------------------------------------------------+
datetime decDateTradeDay (datetime dt)
 {
  int ty = TimeYear (dt);
  int tm = TimeMonth (dt);
  int td = TimeDay (dt);
  int th = TimeHour (dt);
  int ti = TimeMinute (dt);

  td--;
  if (td == 0)
   {
    tm--;
    if (tm == 0)
     {
      ty--;
      tm = 12;
     }
    if (tm == 1 || tm == 3 || tm == 5 || tm == 7 || tm == 8 || tm == 10 || tm == 12) td = 31;
    if (tm == 2) if (MathMod (ty, 4) == 0) td = 29;
    else td = 28;
    if (tm == 4 || tm == 6 || tm == 9 || tm == 11) td = 30;
   }
  return (StrToTime (StringConcatenate (ty, ".", tm, ".", td, " ", th, ":", ti)));
 }
//+------------------------------------------------------------------+