//+------------------------------------------------------------------+ //| DateTime.mqh | //| Copyright 2009-2015, MetaQuotes Software Corp. | //| http://www.mql5.com | //+------------------------------------------------------------------+ //+------------------------------------------------------------------+ //| Structure CDateTime. | //| Purpose: Working with dates and time. | //| Extends the MqlDateTime structure. | //+------------------------------------------------------------------+ struct CDateTime : public MqlDateTime { //--- additional information string MonthName(const int num) const; string ShortMonthName(const int num) const; string DayName(const int num) const; string ShortDayName(const int num) const; string MonthName(void) const { return(MonthName(mon)); } string ShortMonthName(void) const { return(ShortMonthName(mon)); } string DayName(void) const { return(DayName(day_of_week)); } string ShortDayName(void) const { return(ShortDayName(day_of_week)); } int DaysInMonth(void) const; //--- data access datetime DateTime(void) { return(StructToTime(this)); } void DateTime(const datetime value) { TimeToStruct(value,this); } void DateTime(const MqlDateTime& value) { this=value; } void Date(const datetime value); void Date(const MqlDateTime &value); void Time(const datetime value); void Time(const MqlDateTime &value); //--- settings void Sec(const int value); void Min(const int value); void Hour(const int value); void Day(const int value); void Mon(const int value); void Year(const int value); //--- increments void SecDec(int delta=1); void SecInc(int delta=1); void MinDec(int delta=1); void MinInc(int delta=1); void HourDec(int delta=1); void HourInc(int delta=1); void DayDec(int delta=1); void DayInc(int delta=1); void MonDec(int delta=1); void MonInc(int delta=1); void YearDec(int delta=1); void YearInc(int delta=1); //--- check void DayCheck(void); }; //+------------------------------------------------------------------+ //| Gets month name | //+------------------------------------------------------------------+ string CDateTime::MonthName(const int num) const { switch(num) { case 1: return("January"); case 2: return("February"); case 3: return("March"); case 4: return("April"); case 5: return("May"); case 6: return("June"); case 7: return("July"); case 8: return("August"); case 9: return("September"); case 10: return("October"); case 11: return("November"); case 12: return("December"); } //--- return("Bad month"); } //+------------------------------------------------------------------+ //| Gets short name of month | //+------------------------------------------------------------------+ string CDateTime::ShortMonthName(const int num) const { switch(num) { case 1: return("jan"); case 2: return("feb"); case 3: return("mar"); case 4: return("apr"); case 5: return("may"); case 6: return("jun"); case 7: return("jul"); case 8: return("aug"); case 9: return("sep"); case 10: return("oct"); case 11: return("nov"); case 12: return("dec"); } //--- return("Bad month"); } //+------------------------------------------------------------------+ //| Gets name of week day | //+------------------------------------------------------------------+ string CDateTime::DayName(const int num) const { switch(num) { case 0: return("Sunday"); case 1: return("Monday"); case 2: return("Tuesday"); case 3: return("Wednesday"); case 4: return("Thursday"); case 5: return("Friday"); case 6: return("Saturday"); } //--- return("Bad day of week"); } //+------------------------------------------------------------------+ //| Gets short name of week day | //+------------------------------------------------------------------+ string CDateTime::ShortDayName(const int num) const { switch(num) { case 0: return("Su"); case 1: return("Mo"); case 2: return("Tu"); case 3: return("We"); case 4: return("Th"); case 5: return("Fr"); case 6: return("Sa"); } //--- return("Bad day of week"); } //+------------------------------------------------------------------+ //| Gets number of days in month | //+------------------------------------------------------------------+ int CDateTime::DaysInMonth(void) const { int leap_year; //--- switch(mon) { case 1: case 3: case 5: case 7: case 8: case 10: case 12: return(31); case 2: leap_year=year; if(year%100==0) leap_year/=100; return((leap_year%4==0)? 29 : 28); case 4: case 6: case 9: case 11: return(30); } //--- return(0); } //+------------------------------------------------------------------+ //| Sets date | //+------------------------------------------------------------------+ void CDateTime::Date(const datetime value) { MqlDateTime dt; //--- convert to structure TimeToStruct(value,dt); //--- set Date(dt); } //+------------------------------------------------------------------+ //| Sets date | //+------------------------------------------------------------------+ void CDateTime::Date(const MqlDateTime &value) { day =value.day; mon =value.mon; year=value.year; //--- check if day is correct DayCheck(); } //+------------------------------------------------------------------+ //| Sets time | //+------------------------------------------------------------------+ void CDateTime::Time(const datetime value) { MqlDateTime dt; //--- convert to structure TimeToStruct(value,dt); //--- set Time(dt); } //+------------------------------------------------------------------+ //| Sets time | //+------------------------------------------------------------------+ void CDateTime::Time(const MqlDateTime &value) { hour=value.hour; min =value.min; sec =value.sec; } //+------------------------------------------------------------------+ //| Sets seconds | //+------------------------------------------------------------------+ void CDateTime::Sec(const int value) { //--- check and set if(value>=0 && value<60) sec=value; } //+------------------------------------------------------------------+ //| Sets minutes | //+------------------------------------------------------------------+ void CDateTime::Min(const int value) { //--- check and set if(value>=0 && value<60) min=value; } //+------------------------------------------------------------------+ //| Sets hours | //+------------------------------------------------------------------+ void CDateTime::Hour(const int value) { //--- check and set if(value>=0 && value<24) hour=value; } //+------------------------------------------------------------------+ //| Sets day of month | //+------------------------------------------------------------------+ void CDateTime::Day(const int value) { //--- check and set if(value>0 && value<=DaysInMonth()) { day=value; //--- check if day is correct DayCheck(); } } //+------------------------------------------------------------------+ //| Sets month | //+------------------------------------------------------------------+ void CDateTime::Mon(const int value) { //--- check and set if(value>0 && value<=12) { mon=value; //--- check if day is correct DayCheck(); } } //+------------------------------------------------------------------+ //| Sets year | //+------------------------------------------------------------------+ void CDateTime::Year(const int value) { //--- check and set if(value>=1970) { year=value; //--- check if day is correct DayCheck(); } } //+------------------------------------------------------------------+ //| Subtracts specified number of seconds | //+------------------------------------------------------------------+ void CDateTime::SecDec(int delta) { //--- if increment is 0 - exit if(delta==0) return; //--- if increment is negative - inverse the operation if(delta<0) { SecInc(-delta); return; } //--- check if subtract from upper number positions if(delta>60) { MinDec(delta/60); delta%=60; } sec-=delta; if(sec<0) { sec+=60; MinDec(); } } //+------------------------------------------------------------------+ //| Adds specified number of seconds | //+------------------------------------------------------------------+ void CDateTime::SecInc(int delta) { //--- if increment is 0 - exit if(delta==0) return; //--- if increment is negative - inverse the operation if(delta<0) { SecDec(-delta); return; } //--- check if add to upper number positions if(delta>60) { MinInc(delta/60); delta%=60; } sec+=delta; if(sec>=60) { sec-=60; MinInc(); } } //+------------------------------------------------------------------+ //| Subtracts specified number of minutes | //+------------------------------------------------------------------+ void CDateTime::MinDec(int delta) { //--- if increment is 0 - exit if(delta==0) return; //--- if increment is negative - inverse the operation if(delta<0) { MinInc(-delta); return; } //--- check if subtract from upper number positions if(delta>60) { HourDec(delta/60); delta%=60; } min-=delta; if(min<0) { min+=60; HourDec(); } } //+------------------------------------------------------------------+ //| Adds specified number of minutes | //+------------------------------------------------------------------+ void CDateTime::MinInc(int delta) { //--- if increment is 0 - exit if(delta==0) return; //--- if increment is negative - inverse the operation if(delta<0) { MinDec(-delta); return; } //--- check if add to upper number positions if(delta>60) { HourInc(delta/60); delta%=60; } min+=delta; if(min>=60) { min-=60; HourInc(); } } //+------------------------------------------------------------------+ //| Subtracts specified number of hours | //+------------------------------------------------------------------+ void CDateTime::HourDec(int delta) { //--- if increment is 0 - exit if(delta==0) return; //--- if increment is negative - inverse the operation if(delta<0) { HourInc(-delta); return; } //--- check if subtract from upper number positions if(delta>24) { DayDec(delta/24); delta%=24; } hour-=delta; if(hour<0) { hour+=24; DayDec(); } } //+------------------------------------------------------------------+ //| Adds specified number of hours | //+------------------------------------------------------------------+ void CDateTime::HourInc(int delta) { //--- if increment is 0 - exit if(delta==0) return; //--- if increment is negative - inverse the operation if(delta<0) { HourDec(-delta); return; } //--- check if add to upper number positions if(delta>24) { DayInc(delta/24); delta%=24; } hour+=delta; if(hour>=24) { hour-=24; DayInc(); } } //+------------------------------------------------------------------+ //| Subtracts specified number of days | //+------------------------------------------------------------------+ void CDateTime::DayDec(int delta) { //--- if increment is 0 - exit if(delta==0) return; //--- if increment is negative - inverse the operation if(delta<0) { DayInc(-delta); return; } //--- uncertain condition, as the number of days in month can differ while(day<=delta) { delta-=day; MonDec(); day=DaysInMonth(); } day-=delta; //--- check if day is correct DayCheck(); } //+------------------------------------------------------------------+ //| Adds specified number of days | //+------------------------------------------------------------------+ void CDateTime::DayInc(int delta) { //--- if increment is 0 - exit if(delta==0) return; //--- if increment is negative - inverse the operation if(delta<0) { DayDec(-delta); return; } //--- uncertain condition, as the number of days in month can differ while(DaysInMonth()-day12) { YearDec(delta/12); delta%=12; } mon-=delta; if(mon<=0) { mon+=12; YearDec(); } //--- check if day is correct DayCheck(); } //+------------------------------------------------------------------+ //| Adds specified number of months | //+------------------------------------------------------------------+ void CDateTime::MonInc(int delta) { //--- if increment is 0 - exit if(delta==0) return; //--- if increment is negative - inverse the operation if(delta<0) { MonDec(-delta); return; } //--- check if add to upper number positions if(delta>12) { YearInc(delta/12); delta%=12; } mon+=delta; if(mon>12) { mon-=12; YearInc(); } //--- check if day is correct DayCheck(); } //+------------------------------------------------------------------+ //| Subtracts specified number of years | //+------------------------------------------------------------------+ void CDateTime::YearDec(int delta) { //--- if increment is 0 - exit if(delta!=0) { year-=delta; //--- check if day is correct DayCheck(); } } //+------------------------------------------------------------------+ //| Adds specified number of years | //+------------------------------------------------------------------+ void CDateTime::YearInc(int delta) { //--- if increment is 0 - exit if(delta!=0) { year+=delta; //--- check if day is correct DayCheck(); } } //+------------------------------------------------------------------+ //| Checks if day number is correct | //+------------------------------------------------------------------+ void CDateTime::DayCheck(void) { if(day>DaysInMonth()) day=DaysInMonth(); //--- this is required to get day of week and day of year TimeToStruct(StructToTime(this),this); } //+------------------------------------------------------------------+