last ...

2025-03-20 04:54:46 +03:30
parent 012499cc73
commit 1f8d75f9b4
12 changed files with 285 additions and 129 deletions
@@ -0,0 +1,197 @@
+//+------------------------------------------------------------------+
+//| Forex Sessions and Day Range Indicator                           |
+//+------------------------------------------------------------------+
+#property copyright "Your Name"
+#property link      "https://www.example.com"
+#property version   "1.00"
+#property indicator_chart_window
+
+#include <Arrays\ArrayObj.mqh>
+
+struct SessionInfo {
+   string name;
+   int startHour;    // Standard start hour (GMT)
+   int startMinute;
+   int endHour;      // Standard end hour (GMT)
+   int endMinute;
+   bool *isDST(datetime); // DST check function
+   int dstAdjustment; // Hours to add during DST
+};
+
+SessionInfo sessions[] = {
+   {"Sydney", 21, 0, 5, 0, IsSydneyDST, 1},
+   {"Tokyo", 23, 0, 8, 0, IsTokyoDST, 0},
+   {"London", 7, 0, 15, 0, IsLondonDST, 1},
+   {"New York", 12, 0, 17, 0, IsNewYorkDST, 1}
+};
+
+bool sessionActive[];
+double sessionHigh[];
+double sessionLow[];
+datetime sessionStartTime[];
+datetime sessionEndTime[];
+
+double dayHigh = 0;
+double dayLow = 0;
+datetime dayStartTime;
+
+//+------------------------------------------------------------------+
+//| Custom indicator initialization function                         |
+//+------------------------------------------------------------------+
+int OnInit() {
+   ArrayResize(sessionActive, ArraySize(sessions));
+   ArrayResize(sessionHigh, ArraySize(sessions));
+   ArrayResize(sessionLow, ArraySize(sessions));
+   ArrayResize(sessionStartTime, ArraySize(sessions));
+   ArrayResize(sessionEndTime, ArraySize(sessions));
+   
+   for(int i=0; i<ArraySize(sessions); i++) {
+      sessionActive[i] = false;
+      sessionHigh[i] = 0;
+      sessionLow[i] = 0;
+      sessionStartTime[i] = 0;
+      sessionEndTime[i] = 0;
+   }
+   
+   dayHigh = 0;
+   dayLow = 0;
+   dayStartTime = 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[]) {
+   datetime currentTime = TimeCurrent();
+   
+   // Check each session
+   for(int i=0; i<ArraySize(sessions); i++) {
+      SessionInfo session = sessions[i];
+      bool dstActive = session.isDST(currentTime);
+      int adjStartHour = session.startHour + (dstActive ? session.dstAdjustment : 0);
+      int adjEndHour = session.endHour + (dstActive ? session.dstAdjustment : 0);
+      
+      datetime todayStart = StringToTime(TimeToString(currentTime, TIME_DATE) + " " + 
+                                        IntegerToString(adjStartHour) + ":" + 
+                                        IntegerToString(session.startMinute));
+      datetime todayEnd = StringToTime(TimeToString(currentTime, TIME_DATE) + " " + 
+                                       IntegerToString(adjEndHour) + ":" + 
+                                       IntegerToString(session.endMinute));
+      
+      // Handle sessions spanning midnight
+      if(adjEndHour < adjStartHour) {
+         todayEnd += 24 * 3600;
+      }
+      
+      if(currentTime >= todayStart && currentTime < todayEnd) {
+         if(!sessionActive[i]) {
+            sessionActive[i] = true;
+            sessionStartTime[i] = todayStart;
+            sessionEndTime[i] = todayEnd;
+            sessionHigh[i] = Bid;
+            sessionLow[i] = Ask;
+         } else {
+            if(Bid > sessionHigh[i]) sessionHigh[i] = Bid;
+            if(Ask < sessionLow[i]) sessionLow[i] = Ask;
+         }
+      } else {
+         sessionActive[i] = false;
+      }
+   }
+   
+   // Check day range
+   bool dstActiveNY = IsNewYorkDST(currentTime);
+   int dayStartHour = dstActiveNY ? 21 : 22;
+   datetime todayDayStart = StringToTime(TimeToString(currentTime, TIME_DATE) + " " + 
+                                        IntegerToString(dayStartHour) + ":00");
+   
+   if(currentTime < todayDayStart) {
+      todayDayStart -= 24 * 3600;
+   }
+   
+   if(dayStartTime != todayDayStart) {
+      dayStartTime = todayDayStart;
+      dayHigh = Bid;
+      dayLow = Ask;
+   } else {
+      if(Bid > dayHigh) dayHigh = Bid;
+      if(Ask < dayLow) dayLow = Ask;
+   }
+   
+   // Display information on chart
+   string comment = "Active Forex Sessions:\n";
+   for(int i=0; i<ArraySize(sessions); i++) {
+      if(sessionActive[i]) {
+         comment += sessions[i].name + " Session\n" +
+                    "High: " + DoubleToString(sessionHigh[i], _Digits) + "\n" +
+                    "Low: " + DoubleToString(sessionLow[i], _Digits) + "\n";
+      }
+   }
+   comment += "\nDay Range:\n" +
+              "High: " + DoubleToString(dayHigh, _Digits) + "\n" +
+              "Low: " + DoubleToString(dayLow, _Digits);
+   Comment(comment);
+   
+   return(rates_total);
+}
+
+//+------------------------------------------------------------------+
+//| DST Check Functions                                              |
+//+------------------------------------------------------------------+
+bool IsLondonDST(datetime time) {
+   int year = TimeYear(time);
+   datetime march31 = StringToTime(year + ".03.31 00:00");
+   int lastSundayMarch = TimeDay(march31) - (TimeDayOfWeek(march31) % 7);
+   datetime dstStart = StringToTime(year + ".03." + IntegerToString(lastSundayMarch) + " 01:00");
+   
+   datetime oct31 = StringToTime(year + ".10.31 00:00");
+   int lastSundayOct = TimeDay(oct31) - (TimeDayOfWeek(oct31) % 7);
+   datetime dstEnd = StringToTime(year + ".10." + IntegerToString(lastSundayOct) + " 01:00");
+   
+   return time >= dstStart && time < dstEnd;
+}
+
+bool IsNewYorkDST(datetime time) {
+   int year = TimeYear(time);
+   datetime march1 = StringToTime(year + ".03.01 00:00");
+   int dayOfWeekMarch1 = TimeDayOfWeek(march1);
+   int secondSundayMarch = 1 + (7 - dayOfWeekMarch1) % 7 + 7;
+   datetime dstStart = StringToTime(year + ".03." + IntegerToString(secondSundayMarch) + " 07:00");
+   
+   datetime nov1 = StringToTime(year + ".11.01 00:00");
+   int dayOfWeekNov1 = TimeDayOfWeek(nov1);
+   int firstSundayNov = 1 + (7 - dayOfWeekNov1) % 7;
+   datetime dstEnd = StringToTime(year + ".11." + IntegerToString(firstSundayNov) + " 06:00");
+   
+   return time >= dstStart && time < dstEnd;
+}
+
+bool IsSydneyDST(datetime time) {
+   int year = TimeYear(time);
+   datetime oct1 = StringToTime(year + ".10.01 00:00");
+   int dayOfWeekOct1 = TimeDayOfWeek(oct1);
+   int firstSundayOct = 1 + (7 - dayOfWeekOct1) % 7;
+   datetime dstStart = StringToTime(year + ".10." + IntegerToString(firstSundayOct) + " 13:00");
+   
+   datetime apr1 = StringToTime(year + ".04.01 00:00");
+   int dayOfWeekApr1 = TimeDayOfWeek(apr1);
+   int firstSundayApr = 1 + (7 - dayOfWeekApr1) % 7;
+   datetime dstEnd = StringToTime(year + ".04." + IntegerToString(firstSundayApr) + " 15:00");
+   
+   return time >= dstStart && time < dstEnd;
+}
+
+bool IsTokyoDST(datetime time) {
+   return false;
+}