X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/68ee7c47300b37e408ef9a04ec9f83af78e90817..ca77701441e39245dcbfce903049e76f166979e5:/include/wx/datetime.h diff --git a/include/wx/datetime.h b/include/wx/datetime.h index 5f76408d5a..5b6804709a 100644 --- a/include/wx/datetime.h +++ b/include/wx/datetime.h @@ -7,40 +7,50 @@ // Created: 10.02.99 // RCS-ID: $Id$ // Copyright: (c) 1998 Vadim Zeitlin -// Licence: wxWindows license +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_DATETIME_H #define _WX_DATETIME_H -#ifdef __GNUG__ - #pragma interface "datetime.h" -#endif +#include "wx/defs.h" + +#if wxUSE_DATETIME + +#ifdef __WXWINCE__ + #include "wx/msw/wince/time.h" +#else + #include +#endif // OS -#include #include // for INT_MIN #include "wx/longlong.h" +#include "wx/anystr.h" -class WXDLLEXPORT wxDateTime; -class WXDLLEXPORT wxTimeSpan; -class WXDLLEXPORT wxDateSpan; +class WXDLLIMPEXP_FWD_BASE wxDateTime; +class WXDLLIMPEXP_FWD_BASE wxTimeSpan; +class WXDLLIMPEXP_FWD_BASE wxDateSpan; +#ifdef __WINDOWS__ +struct _SYSTEMTIME; +#endif -// don't use inline functions in debug builds - we don't care about -// performances and this only leads to increased rebuild time (because every -// time an inline method is changed, all files including the header must be -// rebuilt) -#ifdef __WXDEBUG__ - #define inline -#endif // Debug +#include "wx/dynarray.h" + +// not all c-runtimes are based on 1/1/1970 being (time_t) 0 +// set this to the corresponding value in seconds 1/1/1970 has on your +// systems c-runtime + +#define WX_TIME_BASE_OFFSET 0 /* - * TODO Well, everything :-) + * TODO * * + 1. Time zones with minutes (make TimeZone a class) - * 2. getdate() function like under Solaris + * ? 2. getdate() function like under Solaris * + 3. text conversion for wxDateSpan - * 4. pluggable modules for the workdays calculations + * + 4. pluggable modules for the workdays calculations + * 5. wxDateTimeHolidayAuthority for Easter and other christian feasts */ /* @@ -62,7 +72,7 @@ class WXDLLEXPORT wxDateSpan; wxTimeSpan + wxTimeSpan = wxTimeSpan wxDateSpan + wxDateSpan = wxDateSpan - substraction + subtraction ------------ wxDateTime - wxDateTime = wxTimeSpan wxDateTime - wxTimeSpan = wxDateTime @@ -83,7 +93,7 @@ class WXDLLEXPORT wxDateSpan; -wxDateSpan = wxDateSpan For each binary operation OP (+, -, *) we have the following operatorOP=() as - a method and the method with a symbolic name OPER (Add, Substract, Multiply) + a method and the method with a symbolic name OPER (Add, Subtract, Multiply) as a synonym for it and another const method with the same name which returns the changed copy of the object and operatorOP() as a global function which is implemented in terms of the const version of OPEN. For the unary - we have @@ -91,11 +101,36 @@ class WXDLLEXPORT wxDateSpan; the copy of the object with the changed sign. */ +// an invalid/default date time object which may be used as the default +// argument for arguments of type wxDateTime; it is also returned by all +// functions returning wxDateTime on failure (this is why it is also called +// wxInvalidDateTime) +class WXDLLIMPEXP_FWD_BASE wxDateTime; + +extern WXDLLIMPEXP_DATA_BASE(const char) wxDefaultDateTimeFormat[]; +extern WXDLLIMPEXP_DATA_BASE(const char) wxDefaultTimeSpanFormat[]; +extern WXDLLIMPEXP_DATA_BASE(const wxDateTime) wxDefaultDateTime; + +#define wxInvalidDateTime wxDefaultDateTime + + +// ---------------------------------------------------------------------------- +// conditional compilation +// ---------------------------------------------------------------------------- + +// if configure detected strftime(), we have it too +#ifdef HAVE_STRFTIME + #define wxHAS_STRFTIME +// suppose everyone else has strftime except Win CE unless VC8 is used +#elif !defined(__WXWINCE__) || defined(__VISUALC8__) + #define wxHAS_STRFTIME +#endif + // ---------------------------------------------------------------------------- // wxDateTime represents an absolute moment in the time // ---------------------------------------------------------------------------- -class WXDLLEXPORT wxDateTime +class WXDLLIMPEXP_BASE wxDateTime { public: // types @@ -108,13 +143,16 @@ public: // data in this format typedef unsigned short wxDateTime_t; + // constants + // ------------------------------------------------------------------------ + // the timezones enum TZ { // the time in the current time zone Local, - // zones from GMT (= Greenwhich Mean Time): they're guaranteed to be + // zones from GMT (= Greenwich Mean Time): they're guaranteed to be // consequent numbers, so writing something like `GMT0 + offset' is // safe if abs(offset) <= 12 @@ -123,7 +161,7 @@ public: GMT_6, GMT_5, GMT_4, GMT_3, GMT_2, GMT_1, GMT0, GMT1, GMT2, GMT3, GMT4, GMT5, GMT6, - GMT7, GMT8, GMT9, GMT10, GMT11, GMT12, + GMT7, GMT8, GMT9, GMT10, GMT11, GMT12, GMT13, // Note that GMT12 and GMT_12 are not the same: there is a difference // of exactly one day between them @@ -157,10 +195,14 @@ public: // Australia A_WST = GMT8, // Western Standard Time - A_CST = GMT12 + 1, // Central Standard Time (+9.5) + A_CST = GMT13 + 1, // Central Standard Time (+9.5) A_EST = GMT10, // Eastern Standard Time A_ESST = GMT11, // Eastern Summer Time + // New Zealand + NZST = GMT12, // Standard Time + NZDT = GMT13, // Daylight Saving Time + // TODO add more symbolic timezone names here // Universal Coordinated Time = the new and politically correct name @@ -184,7 +226,7 @@ public: // adoption of the Gregorian calendar (see IsGregorian()) // // All data and comments taken verbatim from "The Calendar FAQ (v 2.0)" - // by Claus Tøndering, http://www.pip.dknet.dk/~c-t/calendar.html + // by Claus Tøndering, http://www.pip.dknet.dk/~c-t/calendar.html // except for the comments "we take". // // Symbol "->" should be read as "was followed by" in the comments @@ -303,6 +345,12 @@ public: // day or not // // TODO move this to intl.h + +// Required for WinCE +#ifdef USA +#undef USA +#endif + enum Country { Country_Unknown, // no special information for this country @@ -322,10 +370,8 @@ public: Country_WesternEurope_End = UK, Russia, - USA }; - // symbolic names for the months enum Month { @@ -344,16 +390,40 @@ public: Inv_Year = SHRT_MIN // should hold in wxDateTime_t }; + // flags for GetWeekDayName and GetMonthName + enum NameFlags + { + Name_Full = 0x01, // return full name + Name_Abbr = 0x02 // return abbreviated name + }; + + // flags for GetWeekOfYear and GetWeekOfMonth + enum WeekFlags + { + Default_First, // Sunday_First for US, Monday_First for the rest + Monday_First, // week starts with a Monday + Sunday_First // week starts with a Sunday + }; + // helper classes // ------------------------------------------------------------------------ - // a class representing a time zone: basicly, this is just an offset + // a class representing a time zone: basically, this is just an offset // (in seconds) from GMT - class TimeZone + class WXDLLIMPEXP_BASE TimeZone { public: TimeZone(TZ tz); - TimeZone(wxDateTime_t offset = 0) { m_offset = offset; } + + // create time zone object with the given offset + TimeZone(long offset = 0) { m_offset = offset; } + + static TimeZone Make(long offset) + { + TimeZone tz; + tz.m_offset = offset; + return tz; + } long GetOffset() const { return m_offset; } @@ -369,9 +439,11 @@ public: // NB: this struct should always be kept normalized (i.e. mon should // be < 12, 1 <= day <= 31 &c), so use AddMonths(), AddDays() // instead of modifying the member fields directly! - struct Tm + struct WXDLLIMPEXP_BASE Tm { - wxDateTime_t msec, sec, min, hour, mday; + wxDateTime_t msec, sec, min, hour, + mday, // Day of the month in 1..31 range. + yday; // Day of the year in 0..365 range. Month mon; int year; @@ -406,9 +478,10 @@ public: // the timezone we correspond to TimeZone m_tz; - // these values can't be accessed directly because they're not always - // computed and we calculate them on demand - wxDateTime_t wday, yday; + // This value can only be accessed via GetWeekDay() and not directly + // because it's not always computed when creating this object and may + // need to be calculated on demand. + wxDateTime_t wday; }; // static methods @@ -419,7 +492,7 @@ public: // get the current country static Country GetCountry(); - // return TRUE if the country is a West European one (in practice, + // return true if the country is a West European one (in practice, // this means that the same DST rules as for EEC apply) static bool IsWestEuropeanCountry(Country country = Country_Default); @@ -435,11 +508,11 @@ public: // return the current month static Month GetCurrentMonth(Calendar cal = Gregorian); - // returns TRUE if the given year is a leap year in the given calendar + // returns true if the given year is a leap year in the given calendar static bool IsLeapYear(int year = Inv_Year, Calendar cal = Gregorian); // get the century (19 for 1999, 20 for 2000 and -5 for 492 BC) - static int GetCentury(int year = Inv_Year); + static int GetCentury(int year); // returns the number of days in this year (356 or 355 for Gregorian // calendar usually :-) @@ -451,15 +524,29 @@ public: int year = Inv_Year, Calendar cal = Gregorian); + // get the full (default) or abbreviated month name in the current // locale, returns empty string on error - static wxString GetMonthName(Month month, bool abbr = FALSE); + static wxString GetMonthName(Month month, + NameFlags flags = Name_Full); + + // get the standard English full (default) or abbreviated month name + static wxString GetEnglishMonthName(Month month, + NameFlags flags = Name_Full); // get the full (default) or abbreviated weekday name in the current // locale, returns empty string on error - static wxString GetWeekDayName(WeekDay weekday, bool abbr = FALSE); + static wxString GetWeekDayName(WeekDay weekday, + NameFlags flags = Name_Full); + + // get the standard English full (default) or abbreviated weekday name + static wxString GetEnglishWeekDayName(WeekDay weekday, + NameFlags flags = Name_Full); + + // get the AM and PM strings in the current locale (may be empty) + static void GetAmPmStrings(wxString *am, wxString *pm); - // return TRUE if the given country uses DST for this year + // return true if the given country uses DST for this year static bool IsDSTApplicable(int year = Inv_Year, Country country = Country_Default); @@ -477,6 +564,10 @@ public: // return the wxDateTime object for the current time static inline wxDateTime Now(); + // return the wxDateTime object for the current time with millisecond + // precision (if available on this platform) + static wxDateTime UNow(); + // return the wxDateTime object for today midnight: i.e. as Now() but // with time set to 0 static inline wxDateTime Today(); @@ -487,10 +578,13 @@ public: // ------------------------------------------------------------------------ // default ctor does not initialize the object, use Set()! - wxDateTime() { } + wxDateTime() { m_time = wxLongLong(wxINT32_MIN, 0); } // from time_t: seconds since the Epoch 00:00:00 UTC, Jan 1, 1970) +#if (!(defined(__VISAGECPP__) && __IBMCPP__ >= 400)) +// VA C++ confuses this with wxDateTime(double jdn) thinking it is a duplicate declaration inline wxDateTime(time_t timet); +#endif // from broken down time/date (only for standard Unix range) inline wxDateTime(const struct tm& tm); // from broken down time/date (any range) @@ -506,12 +600,18 @@ public: wxDateTime_t millisec = 0); // from separate values for each component with explicit date inline wxDateTime(wxDateTime_t day, // day of the month - Month month = Inv_Month, + Month month, int year = Inv_Year, // 1999, not 99 please! wxDateTime_t hour = 0, wxDateTime_t minute = 0, wxDateTime_t second = 0, wxDateTime_t millisec = 0); +#ifdef __WINDOWS__ + wxDateTime(const struct _SYSTEMTIME& st) + { + SetFromMSWSysTime(st); + } +#endif // default copy ctor ok @@ -525,8 +625,11 @@ public: // set to the current time inline wxDateTime& SetToCurrent(); +#if (!(defined(__VISAGECPP__) && __IBMCPP__ >= 400)) +// VA C++ confuses this with wxDateTime(double jdn) thinking it is a duplicate declaration // set to given time_t value inline wxDateTime& Set(time_t timet); +#endif // set to given broken down time/date wxDateTime& Set(const struct tm& tm); @@ -546,7 +649,7 @@ public: // from separate values for each component with explicit date // (defaults for month and year are the current values) wxDateTime& Set(wxDateTime_t day, - Month month = Inv_Month, + Month month, int year = Inv_Year, // 1999, not 99 please! wxDateTime_t hour = 0, wxDateTime_t minute = 0, @@ -556,6 +659,10 @@ public: // resets time to 00:00:00, doesn't change the date wxDateTime& ResetTime(); + // get the date part of this object only, i.e. the object which has the + // same date as this one but time of 00:00:00 + wxDateTime GetDateOnly() const; + // the following functions don't change the values of the other // fields, i.e. SetMinute() won't change either hour or seconds value @@ -586,41 +693,76 @@ public: // default assignment operator is ok // calendar calculations (functions which set the date only leave the time - // unchanged, e.g. don't explictly zero it) + // unchanged, e.g. don't explicitly zero it): SetXXX() functions modify the + // object itself, GetXXX() ones return a new object. // ------------------------------------------------------------------------ // set to the given week day in the same week as this one - wxDateTime& SetToWeekDayInSameWeek(WeekDay weekday); + wxDateTime& SetToWeekDayInSameWeek(WeekDay weekday, + WeekFlags flags = Monday_First); + inline wxDateTime GetWeekDayInSameWeek(WeekDay weekday, + WeekFlags flags = Monday_First) const; // set to the next week day following this one wxDateTime& SetToNextWeekDay(WeekDay weekday); + inline wxDateTime GetNextWeekDay(WeekDay weekday) const; - // set to the previous week day following this one + // set to the previous week day before this one wxDateTime& SetToPrevWeekDay(WeekDay weekday); + inline wxDateTime GetPrevWeekDay(WeekDay weekday) const; - // set to Nth occurence of given weekday in the given month of the - // given year (time is set to 0), return TRUE on success and FALSE on + // set to Nth occurrence of given weekday in the given month of the + // given year (time is set to 0), return true on success and false on // failure. n may be positive (1..5) or negative to count from the end // of the month (see helper function SetToLastWeekDay()) bool SetToWeekDay(WeekDay weekday, int n = 1, Month month = Inv_Month, int year = Inv_Year); + inline wxDateTime GetWeekDay(WeekDay weekday, + int n = 1, + Month month = Inv_Month, + int year = Inv_Year) const; // sets to the last weekday in the given month, year inline bool SetToLastWeekDay(WeekDay weekday, Month month = Inv_Month, int year = Inv_Year); + inline wxDateTime GetLastWeekDay(WeekDay weekday, + Month month = Inv_Month, + int year = Inv_Year); +#if WXWIN_COMPATIBILITY_2_6 // sets the date to the given day of the given week in the year, - // returns TRUE on success and FALSE if given date doesn't exist (e.g. + // returns true on success and false if given date doesn't exist (e.g. // numWeek is > 53) - bool SetToTheWeek(wxDateTime_t numWeek, WeekDay weekday = Mon); + // + // these functions are badly defined as they're not the reverse of + // GetWeekOfYear(), use SetToTheWeekOfYear() instead + wxDEPRECATED( bool SetToTheWeek(wxDateTime_t numWeek, + WeekDay weekday = Mon, + WeekFlags flags = Monday_First) ); + wxDEPRECATED( wxDateTime GetWeek(wxDateTime_t numWeek, + WeekDay weekday = Mon, + WeekFlags flags = Monday_First) const ); +#endif // WXWIN_COMPATIBILITY_2_6 + + // returns the date corresponding to the given week day of the given + // week (in ISO notation) of the specified year + static wxDateTime SetToWeekOfYear(int year, + wxDateTime_t numWeek, + WeekDay weekday = Mon); // sets the date to the last day of the given (or current) month or the // given (or current) year wxDateTime& SetToLastMonthDay(Month month = Inv_Month, int year = Inv_Year); + inline wxDateTime GetLastMonthDay(Month month = Inv_Month, + int year = Inv_Year) const; + + // sets to the given year day (1..365 or 366) + wxDateTime& SetToYearDay(wxDateTime_t yday); + inline wxDateTime GetYearDay(wxDateTime_t yday) const; // The definitions below were taken verbatim from // @@ -662,21 +804,38 @@ public: // religious holidays (Easter...) or moon/solar eclipses? Some // algorithms can be found in the calendar FAQ - // timezone stuff: a wxDateTime object constructed using given - // day/month/year/hour/min/sec values correspond to this moment in local - // time. Using the functions below, it may be converted to another time - // zone (for example, the Unix epoch is wxDateTime(1, Jan, 1970).ToGMT()) + + // Timezone stuff: a wxDateTime object constructed using given + // day/month/year/hour/min/sec values is interpreted as this moment in + // local time. Using the functions below, it may be converted to another + // time zone (e.g., the Unix epoch is wxDateTime(1, Jan, 1970).ToGMT()). // - // Converting to the local time zone doesn't do anything. + // These functions try to handle DST internally, but there is no magical + // way to know all rules for it in all countries in the world, so if the + // program can handle it itself (or doesn't want to handle it at all for + // whatever reason), the DST handling can be disabled with noDST. // ------------------------------------------------------------------------ // transform to any given timezone - inline wxDateTime ToTimezone(const TimeZone& tz) const; - wxDateTime& MakeTimezone(const TimeZone& tz); + inline wxDateTime ToTimezone(const TimeZone& tz, bool noDST = false) const; + wxDateTime& MakeTimezone(const TimeZone& tz, bool noDST = false); + + // interpret current value as being in another timezone and transform + // it to local one + inline wxDateTime FromTimezone(const TimeZone& tz, bool noDST = false) const; + wxDateTime& MakeFromTimezone(const TimeZone& tz, bool noDST = false); - // transform to GMT/UTC - wxDateTime ToGMT() const { return ToTimezone(GMT0); } - wxDateTime& MakeGMT() { return MakeTimezone(GMT0); } + // transform to/from GMT/UTC + wxDateTime ToUTC(bool noDST = false) const { return ToTimezone(UTC, noDST); } + wxDateTime& MakeUTC(bool noDST = false) { return MakeTimezone(UTC, noDST); } + + wxDateTime ToGMT(bool noDST = false) const { return ToUTC(noDST); } + wxDateTime& MakeGMT(bool noDST = false) { return MakeUTC(noDST); } + + wxDateTime FromUTC(bool noDST = false) const + { return FromTimezone(UTC, noDST); } + wxDateTime& MakeFromUTC(bool noDST = false) + { return MakeFromTimezone(UTC, noDST); } // is daylight savings time in effect at this moment according to the // rules of the specified country? @@ -685,6 +844,7 @@ public: // the information is not available (this is compatible with ANSI C) int IsDST(Country country = Country_Default) const; + // accessors: many of them take the timezone parameter which indicates the // timezone for which to make the calculations and the default value means // to do it for the current timezone of this machine (even if the function @@ -692,9 +852,8 @@ public: // result of timezone shift) // ------------------------------------------------------------------------ - // is the date valid (FALSE for uninitialized objects as well as after - // the functions which failed to convert the date to supported range) - inline bool IsValid() const { return this != &ms_InvDateTime; } + // is the date valid? + inline bool IsValid() const { return m_time != wxInvalidDateTime.m_time; } // get the broken down date/time representation in the given timezone // @@ -707,72 +866,144 @@ public: // if the value is out of range inline time_t GetTicks() const; + // get the century, same as GetCentury(GetYear()) + int GetCentury(const TimeZone& tz = Local) const + { return GetCentury(GetYear(tz)); } // get the year (returns Inv_Year if date is invalid) - int GetYear(const TimeZone& tz = Local) const + int GetYear(const TimeZone& tz = Local) const { return GetTm(tz).year; } // get the month (Inv_Month if date is invalid) - Month GetMonth(const TimeZone& tz = Local) const + Month GetMonth(const TimeZone& tz = Local) const { return (Month)GetTm(tz).mon; } // get the month day (in 1..31 range, 0 if date is invalid) - wxDateTime_t GetDay(const TimeZone& tz = Local) const + wxDateTime_t GetDay(const TimeZone& tz = Local) const { return GetTm(tz).mday; } // get the day of the week (Inv_WeekDay if date is invalid) - WeekDay GetWeekDay(const TimeZone& tz = Local) const + WeekDay GetWeekDay(const TimeZone& tz = Local) const { return GetTm(tz).GetWeekDay(); } // get the hour of the day - wxDateTime_t GetHour(const TimeZone& tz = Local) const + wxDateTime_t GetHour(const TimeZone& tz = Local) const { return GetTm(tz).hour; } // get the minute - wxDateTime_t GetMinute(const TimeZone& tz = Local) const + wxDateTime_t GetMinute(const TimeZone& tz = Local) const { return GetTm(tz).min; } // get the second - wxDateTime_t GetSecond(const TimeZone& tz = Local) const + wxDateTime_t GetSecond(const TimeZone& tz = Local) const { return GetTm(tz).sec; } // get milliseconds - wxDateTime_t GetMillisecond(const TimeZone& tz = Local) const + wxDateTime_t GetMillisecond(const TimeZone& tz = Local) const { return GetTm(tz).msec; } // get the day since the year start (1..366, 0 if date is invalid) wxDateTime_t GetDayOfYear(const TimeZone& tz = Local) const; // get the week number since the year start (1..52 or 53, 0 if date is // invalid) - wxDateTime_t GetWeekOfYear(const TimeZone& tz = Local) const; + wxDateTime_t GetWeekOfYear(WeekFlags flags = Monday_First, + const TimeZone& tz = Local) const; // get the week number since the month start (1..5, 0 if date is // invalid) - wxDateTime_t GetWeekOfMonth(const TimeZone& tz = Local) const; + wxDateTime_t GetWeekOfMonth(WeekFlags flags = Monday_First, + const TimeZone& tz = Local) const; // is this date a work day? This depends on a country, of course, // because the holidays are different in different countries - bool IsWorkDay(Country country = Country_Default, - const TimeZone& tz = Local) const; + bool IsWorkDay(Country country = Country_Default) const; // is this date later than Gregorian calendar introduction for the // given country (see enum GregorianAdoption)? // - // NB: this function shouldn't be considered as absolute authoiruty in + // NB: this function shouldn't be considered as absolute authority in // the matter. Besides, for some countries the exact date of // adoption of the Gregorian calendar is simply unknown. bool IsGregorianDate(GregorianAdoption country = Gr_Standard) const; + // dos date and time format + // ------------------------------------------------------------------------ + + // set from the DOS packed format + wxDateTime& SetFromDOS(unsigned long ddt); + + // pack the date in DOS format + unsigned long GetAsDOS() const; + + // SYSTEMTIME format + // ------------------------------------------------------------------------ +#ifdef __WINDOWS__ + // convert SYSTEMTIME to wxDateTime + wxDateTime& SetFromMSWSysTime(const struct _SYSTEMTIME& st); + + // convert wxDateTime to SYSTEMTIME + void GetAsMSWSysTime(struct _SYSTEMTIME* st) const; + + // same as above but only take date part into account, time is always zero + wxDateTime& SetFromMSWSysDate(const struct _SYSTEMTIME& st); + void GetAsMSWSysDate(struct _SYSTEMTIME* st) const; +#endif // __WINDOWS__ + // comparison (see also functions below for operator versions) // ------------------------------------------------------------------------ - // returns TRUE if the two moments are strictly identical + // returns true if the two moments are strictly identical inline bool IsEqualTo(const wxDateTime& datetime) const; - // returns TRUE if the date is strictly earlier than the given one + // returns true if the date is strictly earlier than the given one inline bool IsEarlierThan(const wxDateTime& datetime) const; - // returns TRUE if the date is strictly later than the given one + // returns true if the date is strictly later than the given one inline bool IsLaterThan(const wxDateTime& datetime) const; - // returns TRUE if the date is strictly in the given range + // returns true if the date is strictly in the given range inline bool IsStrictlyBetween(const wxDateTime& t1, const wxDateTime& t2) const; - // returns TRUE if the date is in the given range + // returns true if the date is in the given range inline bool IsBetween(const wxDateTime& t1, const wxDateTime& t2) const; + // do these two objects refer to the same date? + inline bool IsSameDate(const wxDateTime& dt) const; + + // do these two objects have the same time? + inline bool IsSameTime(const wxDateTime& dt) const; + + // are these two objects equal up to given timespan? + inline bool IsEqualUpTo(const wxDateTime& dt, const wxTimeSpan& ts) const; + + inline bool operator<(const wxDateTime& dt) const + { + wxASSERT_MSG( IsValid() && dt.IsValid(), wxT("invalid wxDateTime") ); + return GetValue() < dt.GetValue(); + } + + inline bool operator<=(const wxDateTime& dt) const + { + wxASSERT_MSG( IsValid() && dt.IsValid(), wxT("invalid wxDateTime") ); + return GetValue() <= dt.GetValue(); + } + + inline bool operator>(const wxDateTime& dt) const + { + wxASSERT_MSG( IsValid() && dt.IsValid(), wxT("invalid wxDateTime") ); + return GetValue() > dt.GetValue(); + } + + inline bool operator>=(const wxDateTime& dt) const + { + wxASSERT_MSG( IsValid() && dt.IsValid(), wxT("invalid wxDateTime") ); + return GetValue() >= dt.GetValue(); + } + + inline bool operator==(const wxDateTime& dt) const + { + wxASSERT_MSG( IsValid() && dt.IsValid(), wxT("invalid wxDateTime") ); + return GetValue() == dt.GetValue(); + } + + inline bool operator!=(const wxDateTime& dt) const + { + wxASSERT_MSG( IsValid() && dt.IsValid(), wxT("invalid wxDateTime") ); + return GetValue() != dt.GetValue(); + } + // arithmetics with dates (see also below for more operators) // ------------------------------------------------------------------------ @@ -782,13 +1013,25 @@ public: inline wxDateTime& Add(const wxTimeSpan& diff); // add a time span (positive or negative) inline wxDateTime& operator+=(const wxTimeSpan& diff); + inline wxDateTime operator+(const wxTimeSpan& ts) const + { + wxDateTime dt(*this); + dt.Add(ts); + return dt; + } // return the difference of the date with a time span - inline wxDateTime Substract(const wxTimeSpan& diff) const; - // substract a time span (positive or negative) - inline wxDateTime& Substract(const wxTimeSpan& diff); - // substract a time span (positive or negative) + inline wxDateTime Subtract(const wxTimeSpan& diff) const; + // subtract a time span (positive or negative) + inline wxDateTime& Subtract(const wxTimeSpan& diff); + // subtract a time span (positive or negative) inline wxDateTime& operator-=(const wxTimeSpan& diff); + inline wxDateTime operator-(const wxTimeSpan& ts) const + { + wxDateTime dt(*this); + dt.Subtract(ts); + return dt; + } // return the sum of the date with a date span inline wxDateTime Add(const wxDateSpan& diff) const; @@ -796,47 +1039,219 @@ public: wxDateTime& Add(const wxDateSpan& diff); // add a date span (positive or negative) inline wxDateTime& operator+=(const wxDateSpan& diff); + inline wxDateTime operator+(const wxDateSpan& ds) const + { + wxDateTime dt(*this); + dt.Add(ds); + return dt; + } // return the difference of the date with a date span - inline wxDateTime Substract(const wxDateSpan& diff) const; - // substract a date span (positive or negative) - inline wxDateTime& Substract(const wxDateSpan& diff); - // substract a date span (positive or negative) + inline wxDateTime Subtract(const wxDateSpan& diff) const; + // subtract a date span (positive or negative) + inline wxDateTime& Subtract(const wxDateSpan& diff); + // subtract a date span (positive or negative) inline wxDateTime& operator-=(const wxDateSpan& diff); + inline wxDateTime operator-(const wxDateSpan& ds) const + { + wxDateTime dt(*this); + dt.Subtract(ds); + return dt; + } // return the difference between two dates - inline wxTimeSpan Substract(const wxDateTime& dt) const; + inline wxTimeSpan Subtract(const wxDateTime& dt) const; + inline wxTimeSpan operator-(const wxDateTime& dt2) const; + + wxDateSpan DiffAsDateSpan(const wxDateTime& dt) const; - // conversion to/from text: all conversions from text return the pointer to - // the next character following the date specification (i.e. the one where - // the scan had to stop) or NULL on failure. + // conversion to/from text // ------------------------------------------------------------------------ + // all conversions functions return true to indicate whether parsing + // succeeded or failed and fill in the provided end iterator, which must + // not be NULL, with the location of the character where the parsing + // stopped (this will be end() of the passed string if everything was + // parsed) + // parse a string in RFC 822 format (found e.g. in mail headers and // having the form "Wed, 10 Feb 1999 19:07:07 +0100") - const wxChar *ParseRfc822Date(const wxChar* date); - // parse a date/time in the given format (see strptime(3)) - const wxChar *ParseFormat(const wxChar *date, - const wxChar *format = _T("%c")); + bool ParseRfc822Date(const wxString& date, + wxString::const_iterator *end); + + // parse a date/time in the given format (see strptime(3)), fill in + // the missing (in the string) fields with the values of dateDef (by + // default, they will not change if they had valid values or will + // default to Today() otherwise) + bool ParseFormat(const wxString& date, + const wxString& format, + const wxDateTime& dateDef, + wxString::const_iterator *end); + + bool ParseFormat(const wxString& date, + const wxString& format, + wxString::const_iterator *end) + { + return ParseFormat(date, format, wxDefaultDateTime, end); + } + + bool ParseFormat(const wxString& date, + wxString::const_iterator *end) + { + return ParseFormat(date, wxDefaultDateTimeFormat, wxDefaultDateTime, end); + } + + // parse a string containing date, time or both in ISO 8601 format + // + // notice that these functions are new in wx 3.0 and so we don't + // provide compatibility overloads for them + bool ParseISODate(const wxString& date) + { + wxString::const_iterator end; + return ParseFormat(date, wxS("%Y-%m-%d"), &end) && end == date.end(); + } + + bool ParseISOTime(const wxString& time) + { + wxString::const_iterator end; + return ParseFormat(time, wxS("%H:%M:%S"), &end) && end == time.end(); + } + + bool ParseISOCombined(const wxString& datetime, char sep = 'T') + { + wxString::const_iterator end; + const wxString fmt = wxS("%Y-%m-%d") + wxString(sep) + wxS("%H:%M:%S"); + return ParseFormat(datetime, fmt, &end) && end == datetime.end(); + } + // parse a string containing the date/time in "free" format, this // function will try to make an educated guess at the string contents - const wxChar *ParseDateTime(const wxChar *datetime); + bool ParseDateTime(const wxString& datetime, + wxString::const_iterator *end); + // parse a string containing the date only in "free" format (less // flexible than ParseDateTime) - const wxChar *ParseDate(const wxChar *date); + bool ParseDate(const wxString& date, + wxString::const_iterator *end); + // parse a string containing the time only in "free" format - const wxChar *ParseTime(const wxChar *time); + bool ParseTime(const wxString& time, + wxString::const_iterator *end); + // this function accepts strftime()-like format string (default // argument corresponds to the preferred date and time representation // for the current locale) and returns the string containing the // resulting text representation - wxString Format(const wxChar *format = _T("%c"), + wxString Format(const wxString& format = wxDefaultDateTimeFormat, const TimeZone& tz = Local) const; // preferred date representation for the current locale - wxString FormatDate() const { return Format(_T("%x")); } + wxString FormatDate() const { return Format(wxS("%x")); } // preferred time representation for the current locale - wxString FormatTime() const { return Format(_T("%X")); } + wxString FormatTime() const { return Format(wxS("%X")); } + // returns the string representing the date in ISO 8601 format + // (YYYY-MM-DD) + wxString FormatISODate() const { return Format(wxS("%Y-%m-%d")); } + // returns the string representing the time in ISO 8601 format + // (HH:MM:SS) + wxString FormatISOTime() const { return Format(wxS("%H:%M:%S")); } + // return the combined date time representation in ISO 8601 format; the + // separator character should be 'T' according to the standard but it + // can also be useful to set it to ' ' + wxString FormatISOCombined(char sep = 'T') const + { return FormatISODate() + sep + FormatISOTime(); } + + + // backwards compatible versions of the parsing functions: they return an + // object representing the next character following the date specification + // (i.e. the one where the scan had to stop) or a special NULL-like object + // on failure + // + // they're not deprecated because a lot of existing code uses them and + // there is no particular harm in keeping them but you should still prefer + // the versions above in the new code + wxAnyStrPtr ParseRfc822Date(const wxString& date) + { + wxString::const_iterator end; + return ParseRfc822Date(date, &end) ? wxAnyStrPtr(date, end) + : wxAnyStrPtr(); + } + + wxAnyStrPtr ParseFormat(const wxString& date, + const wxString& format = wxDefaultDateTimeFormat, + const wxDateTime& dateDef = wxDefaultDateTime) + { + wxString::const_iterator end; + return ParseFormat(date, format, dateDef, &end) ? wxAnyStrPtr(date, end) + : wxAnyStrPtr(); + } + + wxAnyStrPtr ParseDateTime(const wxString& datetime) + { + wxString::const_iterator end; + return ParseDateTime(datetime, &end) ? wxAnyStrPtr(datetime, end) + : wxAnyStrPtr(); + } + + wxAnyStrPtr ParseDate(const wxString& date) + { + wxString::const_iterator end; + return ParseDate(date, &end) ? wxAnyStrPtr(date, end) + : wxAnyStrPtr(); + } + + wxAnyStrPtr ParseTime(const wxString& time) + { + wxString::const_iterator end; + return ParseTime(time, &end) ? wxAnyStrPtr(time, end) + : wxAnyStrPtr(); + } + + // In addition to wxAnyStrPtr versions above we also must provide the + // overloads for C strings as we must return a pointer into the original + // string and not inside a temporary wxString which would have been created + // if the overloads above were used. + // + // And then we also have to provide the overloads for wxCStrData, as usual. + // Unfortunately those ones can't return anything as we don't have any + // sufficiently long-lived wxAnyStrPtr to return from them: any temporary + // strings it would point to would be destroyed when this function returns + // making it impossible to dereference the return value. So we just don't + // return anything from here which at least allows to keep compatibility + // with the code not testing the return value. Other uses of this method + // need to be converted to use one of the new bool-returning overloads + // above. + void ParseRfc822Date(const wxCStrData& date) + { ParseRfc822Date(wxString(date)); } + const char* ParseRfc822Date(const char* date); + const wchar_t* ParseRfc822Date(const wchar_t* date); + + void ParseFormat(const wxCStrData& date, + const wxString& format = wxDefaultDateTimeFormat, + const wxDateTime& dateDef = wxDefaultDateTime) + { ParseFormat(wxString(date), format, dateDef); } + const char* ParseFormat(const char* date, + const wxString& format = wxDefaultDateTimeFormat, + const wxDateTime& dateDef = wxDefaultDateTime); + const wchar_t* ParseFormat(const wchar_t* date, + const wxString& format = wxDefaultDateTimeFormat, + const wxDateTime& dateDef = wxDefaultDateTime); + + void ParseDateTime(const wxCStrData& datetime) + { ParseDateTime(wxString(datetime)); } + const char* ParseDateTime(const char* datetime); + const wchar_t* ParseDateTime(const wchar_t* datetime); + + void ParseDate(const wxCStrData& date) + { ParseDate(wxString(date)); } + const char* ParseDate(const char* date); + const wchar_t* ParseDate(const wchar_t* date); + + void ParseTime(const wxCStrData& time) + { ParseTime(wxString(time)); } + const char* ParseTime(const char* time); + const wchar_t* ParseTime(const wchar_t* time); + // implementation // ------------------------------------------------------------------------ @@ -848,15 +1263,18 @@ public: inline wxLongLong GetValue() const; // a helper function to get the current time_t - static time_t GetTimeNow() { return time((time_t *)NULL); } + static time_t GetTimeNow() { return time(NULL); } // another one to get the current time broken down static struct tm *GetTmNow() { - time_t t = GetTimeNow(); - return localtime(&t); + static struct tm l_CurrentTime; + return GetTmNow(&l_CurrentTime); } + // get current time using thread-safe function + static struct tm *GetTmNow(struct tm *tmstruct); + private: // the current country - as it's the same for all program objects (unless // it runs on a _really_ big cluster system :-), this is a static member: @@ -868,11 +1286,7 @@ private: // fixed to 1000 static const long TIME_T_FACTOR; - // invalid wxDateTime object - returned by all functions which return - // "wxDateTime &" on failure - static wxDateTime ms_InvDateTime; - - // returns TRUE if we fall in range in which we can use standard ANSI C + // returns true if we fall in range in which we can use standard ANSI C // functions inline bool IsInStdRange() const; @@ -884,34 +1298,38 @@ private: // ---------------------------------------------------------------------------- // This class contains a difference between 2 wxDateTime values, so it makes -// sense to add it to wxDateTime and it is the result of substraction of 2 +// sense to add it to wxDateTime and it is the result of subtraction of 2 // objects of that class. See also wxDateSpan. // ---------------------------------------------------------------------------- -class WXDLLEXPORT wxTimeSpan +class WXDLLIMPEXP_BASE wxTimeSpan { public: // constructors // ------------------------------------------------------------------------ + // return the timespan for the given number of milliseconds + static wxTimeSpan Milliseconds(wxLongLong ms) { return wxTimeSpan(0, 0, 0, ms); } + static wxTimeSpan Millisecond() { return Milliseconds(1); } + // return the timespan for the given number of seconds - static wxTimeSpan Seconds(int sec) { return wxTimeSpan(0, 0, sec); } + static wxTimeSpan Seconds(wxLongLong sec) { return wxTimeSpan(0, 0, sec); } static wxTimeSpan Second() { return Seconds(1); } // return the timespan for the given number of minutes - static wxTimeSpan Minutes(int min) { return wxTimeSpan(0, min, 0 ); } + static wxTimeSpan Minutes(long min) { return wxTimeSpan(0, min, 0 ); } static wxTimeSpan Minute() { return Minutes(1); } // return the timespan for the given number of hours - static wxTimeSpan Hours(int hours) { return wxTimeSpan(hours, 0, 0); } + static wxTimeSpan Hours(long hours) { return wxTimeSpan(hours, 0, 0); } static wxTimeSpan Hour() { return Hours(1); } // return the timespan for the given number of days - static wxTimeSpan Days(int days) { return Hours(24 * days); } + static wxTimeSpan Days(long days) { return Hours(24 * days); } static wxTimeSpan Day() { return Days(1); } // return the timespan for the given number of weeks - static wxTimeSpan Weeks(int days) { return Days(7 * days); } + static wxTimeSpan Weeks(long days) { return Days(7 * days); } static wxTimeSpan Week() { return Weeks(1); } // default ctor constructs the 0 time span @@ -920,10 +1338,10 @@ public: // from separate values for each component, date set to 0 (hours are // not restricted to 0..24 range, neither are minutes, seconds or // milliseconds) - inline wxTimeSpan(int hours, - int minutes = 0, - int seconds = 0, - int milliseconds = 0); + inline wxTimeSpan(long hours, + long minutes = 0, + wxLongLong seconds = 0, + wxLongLong milliseconds = 0); // default copy ctor is ok @@ -938,13 +1356,21 @@ public: inline wxTimeSpan& Add(const wxTimeSpan& diff); // add two timespans together wxTimeSpan& operator+=(const wxTimeSpan& diff) { return Add(diff); } + inline wxTimeSpan operator+(const wxTimeSpan& ts) const + { + return wxTimeSpan(GetValue() + ts.GetValue()); + } // return the difference of two timespans - inline wxTimeSpan Substract(const wxTimeSpan& diff) const; - // substract another timespan - inline wxTimeSpan& Substract(const wxTimeSpan& diff); - // substract another timespan - wxTimeSpan& operator-=(const wxTimeSpan& diff) { return Substract(diff); } + inline wxTimeSpan Subtract(const wxTimeSpan& diff) const; + // subtract another timespan + inline wxTimeSpan& Subtract(const wxTimeSpan& diff); + // subtract another timespan + wxTimeSpan& operator-=(const wxTimeSpan& diff) { return Subtract(diff); } + inline wxTimeSpan operator-(const wxTimeSpan& ts) + { + return wxTimeSpan(GetValue() - ts.GetValue()); + } // multiply timespan by a scalar inline wxTimeSpan Multiply(int n) const; @@ -952,8 +1378,12 @@ public: inline wxTimeSpan& Multiply(int n); // multiply timespan by a scalar wxTimeSpan& operator*=(int n) { return Multiply(n); } + inline wxTimeSpan operator*(int n) const + { + return wxTimeSpan(*this).Multiply(n); + } - // return this timespan with inversed sign + // return this timespan with opposite sign wxTimeSpan Negate() const { return wxTimeSpan(-GetValue()); } // negate the value of the timespan wxTimeSpan& Neg() { m_diff = -GetValue(); return *this; } @@ -984,13 +1414,43 @@ public: // are two timespans equal? inline bool IsEqualTo(const wxTimeSpan& ts) const; // compare two timestamps: works with the absolute values, i.e. -2 - // hours is longer than 1 hour. Also, it will return FALSE if the + // hours is longer than 1 hour. Also, it will return false if the // timespans are equal in absolute value. inline bool IsLongerThan(const wxTimeSpan& ts) const; // compare two timestamps: works with the absolute values, i.e. 1 - // hour is shorter than -2 hours. Also, it will return FALSE if the + // hour is shorter than -2 hours. Also, it will return false if the // timespans are equal in absolute value. - bool IsShorterThan(const wxTimeSpan& t) const { return !IsLongerThan(t); } + bool IsShorterThan(const wxTimeSpan& t) const; + + inline bool operator<(const wxTimeSpan &ts) const + { + return GetValue() < ts.GetValue(); + } + + inline bool operator<=(const wxTimeSpan &ts) const + { + return GetValue() <= ts.GetValue(); + } + + inline bool operator>(const wxTimeSpan &ts) const + { + return GetValue() > ts.GetValue(); + } + + inline bool operator>=(const wxTimeSpan &ts) const + { + return GetValue() >= ts.GetValue(); + } + + inline bool operator==(const wxTimeSpan &ts) const + { + return GetValue() == ts.GetValue(); + } + + inline bool operator!=(const wxTimeSpan &ts) const + { + return GetValue() != ts.GetValue(); + } // breaking into days, hours, minutes and seconds // ------------------------------------------------------------------------ @@ -1017,11 +1477,7 @@ public: // resulting text representation. Notice that only some of format // specifiers valid for wxDateTime are valid for wxTimeSpan: hours, // minutes and seconds make sense, but not "PM/AM" string for example. - wxString Format(const wxChar *format = _T("%c")) const; - // preferred date representation for the current locale - wxString FormatDate() const { return Format(_T("%x")); } - // preferred time representation for the current locale - wxString FormatTime() const { return Format(_T("%X")); } + wxString Format(const wxString& format = wxDefaultTimeSpanFormat) const; // implementation // ------------------------------------------------------------------------ @@ -1045,7 +1501,12 @@ private: // one month to Feb, 15 - we want to get Mar, 15, of course). // // When adding a month to the date, all lesser components (days, hours, ...) -// won't be changed. +// won't be changed unless the resulting date would be invalid: for example, +// Jan 31 + 1 month will be Feb 28, not (non existing) Feb 31. +// +// Because of this feature, adding and subtracting back again the same +// wxDateSpan will *not*, in general give back the original date: Feb 28 - 1 +// month will be Jan 28, not Jan 31! // // wxDateSpan can be either positive or negative. They may be // multiplied by scalars which multiply all deltas by the scalar: i.e. 2*(1 @@ -1056,12 +1517,18 @@ private: // Beware about weeks: if you specify both weeks and days, the total number of // days added will be 7*weeks + days! See also GetTotalDays() function. // +// Equality operators are defined for wxDateSpans. Two datespans are equal if +// they both give the same target date when added to *every* source date. +// Thus wxDateSpan::Months(1) is not equal to wxDateSpan::Days(30), because +// they not give the same date when added to 1 Feb. But wxDateSpan::Days(14) is +// equal to wxDateSpan::Weeks(2) +// // Finally, notice that for adding hours, minutes &c you don't need this // class: wxTimeSpan will do the job because there are no subtleties // associated with those. // ---------------------------------------------------------------------------- -class WXDLLEXPORT wxDateSpan +class WXDLLIMPEXP_BASE wxDateSpan { public: // constructors @@ -1112,6 +1579,8 @@ public: int GetYears() const { return m_years; } // get number of months int GetMonths() const { return m_months; } + // returns 12*GetYears() + GetMonths() + int GetTotalMonths() const { return 12*m_years + m_months; } // get number of weeks int GetWeeks() const { return m_weeks; } // get number of days @@ -1128,13 +1597,27 @@ public: inline wxDateSpan& Add(const wxDateSpan& other); // add another wxDateSpan to us inline wxDateSpan& operator+=(const wxDateSpan& other); + inline wxDateSpan operator+(const wxDateSpan& ds) const + { + return wxDateSpan(GetYears() + ds.GetYears(), + GetMonths() + ds.GetMonths(), + GetWeeks() + ds.GetWeeks(), + GetDays() + ds.GetDays()); + } // return difference of two date spans - inline wxDateSpan Substract(const wxDateSpan& other) const; - // substract another wxDateSpan from us - inline wxDateSpan& Substract(const wxDateSpan& other); - // substract another wxDateSpan from us + inline wxDateSpan Subtract(const wxDateSpan& other) const; + // subtract another wxDateSpan from us + inline wxDateSpan& Subtract(const wxDateSpan& other); + // subtract another wxDateSpan from us inline wxDateSpan& operator-=(const wxDateSpan& other); + inline wxDateSpan operator-(const wxDateSpan& ds) const + { + return wxDateSpan(GetYears() - ds.GetYears(), + GetMonths() - ds.GetMonths(), + GetWeeks() - ds.GetWeeks(), + GetDays() - ds.GetDays()); + } // return a copy of this time span with changed sign inline wxDateSpan Negate() const; @@ -1149,6 +1632,23 @@ public: inline wxDateSpan& Multiply(int factor); // multiply all components by a (signed) number inline wxDateSpan& operator*=(int factor) { return Multiply(factor); } + inline wxDateSpan operator*(int n) const + { + return wxDateSpan(*this).Multiply(n); + } + + // ds1 == d2 if and only if for every wxDateTime t t + ds1 == t + ds2 + inline bool operator==(const wxDateSpan& ds) const + { + return GetYears() == ds.GetYears() && + GetMonths() == ds.GetMonths() && + GetTotalDays() == ds.GetTotalDays(); + } + + inline bool operator!=(const wxDateSpan& ds) const + { + return !(*this == ds); + } private: int m_years, @@ -1157,253 +1657,665 @@ private: m_days; }; -WXDLLEXPORT_DATA(extern wxDateSpan) wxYear; -WXDLLEXPORT_DATA(extern wxDateSpan) wxMonth; -WXDLLEXPORT_DATA(extern wxDateSpan) wxWeek; -WXDLLEXPORT_DATA(extern wxDateSpan) wxDay; +// ---------------------------------------------------------------------------- +// wxDateTimeArray: array of dates. +// ---------------------------------------------------------------------------- + +WX_DECLARE_USER_EXPORTED_OBJARRAY(wxDateTime, wxDateTimeArray, WXDLLIMPEXP_BASE); + +// ---------------------------------------------------------------------------- +// wxDateTimeHolidayAuthority: an object of this class will decide whether a +// given date is a holiday and is used by all functions working with "work +// days". +// +// NB: the base class is an ABC, derived classes must implement the pure +// virtual methods to work with the holidays they correspond to. +// ---------------------------------------------------------------------------- + +class WXDLLIMPEXP_FWD_BASE wxDateTimeHolidayAuthority; +WX_DEFINE_USER_EXPORTED_ARRAY_PTR(wxDateTimeHolidayAuthority *, + wxHolidayAuthoritiesArray, + class WXDLLIMPEXP_BASE); + +class wxDateTimeHolidaysModule; +class WXDLLIMPEXP_BASE wxDateTimeHolidayAuthority +{ +friend class wxDateTimeHolidaysModule; +public: + // returns true if the given date is a holiday + static bool IsHoliday(const wxDateTime& dt); + + // fills the provided array with all holidays in the given range, returns + // the number of them + static size_t GetHolidaysInRange(const wxDateTime& dtStart, + const wxDateTime& dtEnd, + wxDateTimeArray& holidays); + + // clear the list of holiday authorities + static void ClearAllAuthorities(); + + // add a new holiday authority (the pointer will be deleted by + // wxDateTimeHolidayAuthority) + static void AddAuthority(wxDateTimeHolidayAuthority *auth); + + // the base class must have a virtual dtor + virtual ~wxDateTimeHolidayAuthority(); + +protected: + // this function is called to determine whether a given day is a holiday + virtual bool DoIsHoliday(const wxDateTime& dt) const = 0; + + // this function should fill the array with all holidays between the two + // given dates - it is implemented in the base class, but in a very + // inefficient way (it just iterates over all days and uses IsHoliday() for + // each of them), so it must be overridden in the derived class where the + // base class version may be explicitly used if needed + // + // returns the number of holidays in the given range and fills holidays + // array + virtual size_t DoGetHolidaysInRange(const wxDateTime& dtStart, + const wxDateTime& dtEnd, + wxDateTimeArray& holidays) const = 0; + +private: + // all holiday authorities + static wxHolidayAuthoritiesArray ms_authorities; +}; + +// the holidays for this class are all Saturdays and Sundays +class WXDLLIMPEXP_BASE wxDateTimeWorkDays : public wxDateTimeHolidayAuthority +{ +protected: + virtual bool DoIsHoliday(const wxDateTime& dt) const; + virtual size_t DoGetHolidaysInRange(const wxDateTime& dtStart, + const wxDateTime& dtEnd, + wxDateTimeArray& holidays) const; +}; // ============================================================================ // inline functions implementation // ============================================================================ -// don't include inline functions definitions when we're included from anything -// else than datetime.cpp in debug builds: this minimizes rebuilds if we change -// some inline function and the performance doesn't matter in the debug builds. +// ---------------------------------------------------------------------------- +// private macros +// ---------------------------------------------------------------------------- + +#define MILLISECONDS_PER_DAY 86400000l + +// some broken compilers (HP-UX CC) refuse to compile the "normal" version, but +// using a temp variable always might prevent other compilers from optimising +// it away - hence use of this ugly macro +#ifndef __HPUX__ + #define MODIFY_AND_RETURN(op) return wxDateTime(*this).op +#else + #define MODIFY_AND_RETURN(op) wxDateTime dt(*this); dt.op; return dt +#endif + +// ---------------------------------------------------------------------------- +// wxDateTime construction +// ---------------------------------------------------------------------------- + +inline bool wxDateTime::IsInStdRange() const +{ + // currently we don't know what is the real type of time_t so prefer to err + // on the safe side and limit it to 32 bit values which is safe everywhere + return m_time >= 0l && (m_time / TIME_T_FACTOR) < wxINT32_MAX; +} + +/* static */ +inline wxDateTime wxDateTime::Now() +{ + struct tm tmstruct; + return wxDateTime(*GetTmNow(&tmstruct)); +} + +/* static */ +inline wxDateTime wxDateTime::Today() +{ + wxDateTime dt(Now()); + dt.ResetTime(); + + return dt; +} -#if !defined(__WXDEBUG__) || defined(wxDEFINE_TIME_CONSTANTS) - #define INCLUDED_FROM_WX_DATETIME_H - #include "wx/datetime.inl" - #undef INCLUDED_FROM_WX_DATETIME_H +#if (!(defined(__VISAGECPP__) && __IBMCPP__ >= 400)) +inline wxDateTime& wxDateTime::Set(time_t timet) +{ + if ( timet == (time_t)-1 ) + { + m_time = wxInvalidDateTime.m_time; + } + else + { + // assign first to avoid long multiplication overflow! + m_time = timet - WX_TIME_BASE_OFFSET; + m_time *= TIME_T_FACTOR; + } + + return *this; +} #endif -// if we defined it to be empty above, restore it now -#undef inline +inline wxDateTime& wxDateTime::SetToCurrent() +{ + *this = Now(); + return *this; +} -// ============================================================================ -// binary operators -// ============================================================================ +#if (!(defined(__VISAGECPP__) && __IBMCPP__ >= 400)) +inline wxDateTime::wxDateTime(time_t timet) +{ + Set(timet); +} +#endif + +inline wxDateTime::wxDateTime(const struct tm& tm) +{ + Set(tm); +} + +inline wxDateTime::wxDateTime(const Tm& tm) +{ + Set(tm); +} + +inline wxDateTime::wxDateTime(double jdn) +{ + Set(jdn); +} + +inline wxDateTime& wxDateTime::Set(const Tm& tm) +{ + wxASSERT_MSG( tm.IsValid(), wxT("invalid broken down date/time") ); + + return Set(tm.mday, (Month)tm.mon, tm.year, + tm.hour, tm.min, tm.sec, tm.msec); +} + +inline wxDateTime::wxDateTime(wxDateTime_t hour, + wxDateTime_t minute, + wxDateTime_t second, + wxDateTime_t millisec) +{ + Set(hour, minute, second, millisec); +} + +inline wxDateTime::wxDateTime(wxDateTime_t day, + Month month, + int year, + wxDateTime_t hour, + wxDateTime_t minute, + wxDateTime_t second, + wxDateTime_t millisec) +{ + Set(day, month, year, hour, minute, second, millisec); +} // ---------------------------------------------------------------------------- -// wxDateTime operators +// wxDateTime accessors // ---------------------------------------------------------------------------- -// arithmetics -// ----------- +inline wxLongLong wxDateTime::GetValue() const +{ + wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime")); -// no need to check for validity - the member functions we call will do it + return m_time; +} -inline wxDateTime WXDLLEXPORT operator+(const wxDateTime& dt, - const wxTimeSpan& ts) +inline time_t wxDateTime::GetTicks() const { - return dt.Add(ts); + wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime")); + if ( !IsInStdRange() ) + { + return (time_t)-1; + } + + return (time_t)((m_time / (long)TIME_T_FACTOR).ToLong()) + WX_TIME_BASE_OFFSET; +} + +inline bool wxDateTime::SetToLastWeekDay(WeekDay weekday, + Month month, + int year) +{ + return SetToWeekDay(weekday, -1, month, year); +} + +inline wxDateTime +wxDateTime::GetWeekDayInSameWeek(WeekDay weekday, + WeekFlags WXUNUSED(flags)) const +{ + MODIFY_AND_RETURN( SetToWeekDayInSameWeek(weekday) ); +} + +inline wxDateTime wxDateTime::GetNextWeekDay(WeekDay weekday) const +{ + MODIFY_AND_RETURN( SetToNextWeekDay(weekday) ); } -inline wxDateTime WXDLLEXPORT operator-(const wxDateTime& dt, - const wxTimeSpan& ts) +inline wxDateTime wxDateTime::GetPrevWeekDay(WeekDay weekday) const { - return dt.Substract(ts); + MODIFY_AND_RETURN( SetToPrevWeekDay(weekday) ); } -inline wxDateTime WXDLLEXPORT operator+(const wxDateTime& dt, - const wxDateSpan& ds) +inline wxDateTime wxDateTime::GetWeekDay(WeekDay weekday, + int n, + Month month, + int year) const { - return dt.Add(ds); + wxDateTime dt(*this); + + return dt.SetToWeekDay(weekday, n, month, year) ? dt : wxInvalidDateTime; +} + +inline wxDateTime wxDateTime::GetLastWeekDay(WeekDay weekday, + Month month, + int year) +{ + wxDateTime dt(*this); + + return dt.SetToLastWeekDay(weekday, month, year) ? dt : wxInvalidDateTime; } -inline wxDateTime WXDLLEXPORT operator-(const wxDateTime& dt, - const wxDateSpan& ds) +inline wxDateTime wxDateTime::GetLastMonthDay(Month month, int year) const { - return dt.Substract(ds); + MODIFY_AND_RETURN( SetToLastMonthDay(month, year) ); } -inline wxTimeSpan WXDLLEXPORT operator-(const wxDateTime& dt1, - const wxDateTime& dt2) +inline wxDateTime wxDateTime::GetYearDay(wxDateTime_t yday) const { - return dt1.Substract(dt2); + MODIFY_AND_RETURN( SetToYearDay(yday) ); } -// comparison -// ---------- +// ---------------------------------------------------------------------------- +// wxDateTime comparison +// ---------------------------------------------------------------------------- -inline bool WXDLLEXPORT operator<(const wxDateTime& t1, const wxDateTime& t2) +inline bool wxDateTime::IsEqualTo(const wxDateTime& datetime) const { - wxASSERT_MSG( t1.IsValid() && t2.IsValid(), _T("invalid wxDateTime") ); + wxASSERT_MSG( IsValid() && datetime.IsValid(), wxT("invalid wxDateTime")); - return t1.GetValue() < t2.GetValue(); + return m_time == datetime.m_time; } -inline bool WXDLLEXPORT operator<=(const wxDateTime& t1, const wxDateTime& t2) +inline bool wxDateTime::IsEarlierThan(const wxDateTime& datetime) const { - wxASSERT_MSG( t1.IsValid() && t2.IsValid(), _T("invalid wxDateTime") ); + wxASSERT_MSG( IsValid() && datetime.IsValid(), wxT("invalid wxDateTime")); - return t1.GetValue() <= t2.GetValue(); + return m_time < datetime.m_time; } -inline bool WXDLLEXPORT operator>(const wxDateTime& t1, const wxDateTime& t2) +inline bool wxDateTime::IsLaterThan(const wxDateTime& datetime) const { - wxASSERT_MSG( t1.IsValid() && t2.IsValid(), _T("invalid wxDateTime") ); + wxASSERT_MSG( IsValid() && datetime.IsValid(), wxT("invalid wxDateTime")); - return t1.GetValue() > t2.GetValue(); + return m_time > datetime.m_time; } -inline bool WXDLLEXPORT operator>=(const wxDateTime& t1, const wxDateTime& t2) +inline bool wxDateTime::IsStrictlyBetween(const wxDateTime& t1, + const wxDateTime& t2) const { - wxASSERT_MSG( t1.IsValid() && t2.IsValid(), _T("invalid wxDateTime") ); + // no need for assert, will be checked by the functions we call + return IsLaterThan(t1) && IsEarlierThan(t2); +} - return t1.GetValue() >= t2.GetValue(); +inline bool wxDateTime::IsBetween(const wxDateTime& t1, + const wxDateTime& t2) const +{ + // no need for assert, will be checked by the functions we call + return IsEqualTo(t1) || IsEqualTo(t2) || IsStrictlyBetween(t1, t2); } -inline bool WXDLLEXPORT operator==(const wxDateTime& t1, const wxDateTime& t2) +inline bool wxDateTime::IsSameDate(const wxDateTime& dt) const { - wxASSERT_MSG( t1.IsValid() && t2.IsValid(), _T("invalid wxDateTime") ); + Tm tm1 = GetTm(), + tm2 = dt.GetTm(); - return t1.GetValue() == t2.GetValue(); + return tm1.year == tm2.year && + tm1.mon == tm2.mon && + tm1.mday == tm2.mday; } -inline bool WXDLLEXPORT operator!=(const wxDateTime& t1, const wxDateTime& t2) +inline bool wxDateTime::IsSameTime(const wxDateTime& dt) const { - wxASSERT_MSG( t1.IsValid() && t2.IsValid(), _T("invalid wxDateTime") ); + // notice that we can't do something like this: + // + // m_time % MILLISECONDS_PER_DAY == dt.m_time % MILLISECONDS_PER_DAY + // + // because we have also to deal with (possibly) different DST settings! + Tm tm1 = GetTm(), + tm2 = dt.GetTm(); + + return tm1.hour == tm2.hour && + tm1.min == tm2.min && + tm1.sec == tm2.sec && + tm1.msec == tm2.msec; +} - return t1.GetValue() != t2.GetValue(); +inline bool wxDateTime::IsEqualUpTo(const wxDateTime& dt, + const wxTimeSpan& ts) const +{ + return IsBetween(dt.Subtract(ts), dt.Add(ts)); } // ---------------------------------------------------------------------------- -// wxTimeSpan operators +// wxDateTime arithmetics // ---------------------------------------------------------------------------- -// arithmetics -// ----------- +inline wxDateTime wxDateTime::Add(const wxTimeSpan& diff) const +{ + wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime")); + + return wxDateTime(m_time + diff.GetValue()); +} + +inline wxDateTime& wxDateTime::Add(const wxTimeSpan& diff) +{ + wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime")); + + m_time += diff.GetValue(); + + return *this; +} -inline wxTimeSpan WXDLLEXPORT operator+(const wxTimeSpan& ts1, - const wxTimeSpan& ts2) +inline wxDateTime& wxDateTime::operator+=(const wxTimeSpan& diff) { - return wxTimeSpan(ts1.GetValue() + ts2.GetValue()); + return Add(diff); } -inline wxTimeSpan WXDLLEXPORT operator-(const wxTimeSpan& ts1, - const wxTimeSpan& ts2) +inline wxDateTime wxDateTime::Subtract(const wxTimeSpan& diff) const { - return wxTimeSpan(ts1.GetValue() - ts2.GetValue()); + wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime")); + + return wxDateTime(m_time - diff.GetValue()); } -inline wxTimeSpan WXDLLEXPORT operator*(const wxTimeSpan& ts, int n) +inline wxDateTime& wxDateTime::Subtract(const wxTimeSpan& diff) { - return wxTimeSpan(ts).Multiply(n); + wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime")); + + m_time -= diff.GetValue(); + + return *this; } -inline wxTimeSpan WXDLLEXPORT operator*(int n, const wxTimeSpan& ts) +inline wxDateTime& wxDateTime::operator-=(const wxTimeSpan& diff) { - return wxTimeSpan(ts).Multiply(n); + return Subtract(diff); } -// comparison -// ---------- +inline wxTimeSpan wxDateTime::Subtract(const wxDateTime& datetime) const +{ + wxASSERT_MSG( IsValid() && datetime.IsValid(), wxT("invalid wxDateTime")); + + return wxTimeSpan(GetValue() - datetime.GetValue()); +} -inline bool WXDLLEXPORT operator<(const wxTimeSpan &t1, const wxTimeSpan &t2) +inline wxTimeSpan wxDateTime::operator-(const wxDateTime& dt2) const { - return t1.GetValue() < t2.GetValue(); + return this->Subtract(dt2); } -inline bool WXDLLEXPORT operator<=(const wxTimeSpan &t1, const wxTimeSpan &t2) +inline wxDateTime wxDateTime::Add(const wxDateSpan& diff) const { - return t1.GetValue() <= t2.GetValue(); + return wxDateTime(*this).Add(diff); } -inline bool WXDLLEXPORT operator>(const wxTimeSpan &t1, const wxTimeSpan &t2) +inline wxDateTime& wxDateTime::Subtract(const wxDateSpan& diff) { - return t1.GetValue() > t2.GetValue(); + return Add(diff.Negate()); } -inline bool WXDLLEXPORT operator>=(const wxTimeSpan &t1, const wxTimeSpan &t2) +inline wxDateTime wxDateTime::Subtract(const wxDateSpan& diff) const { - return t1.GetValue() >= t2.GetValue(); + return wxDateTime(*this).Subtract(diff); } -inline bool WXDLLEXPORT operator==(const wxTimeSpan &t1, const wxTimeSpan &t2) +inline wxDateTime& wxDateTime::operator-=(const wxDateSpan& diff) { - return t1.GetValue() == t2.GetValue(); + return Subtract(diff); } -inline bool WXDLLEXPORT operator!=(const wxTimeSpan &t1, const wxTimeSpan &t2) +inline wxDateTime& wxDateTime::operator+=(const wxDateSpan& diff) { - return t1.GetValue() != t2.GetValue(); + return Add(diff); } // ---------------------------------------------------------------------------- -// wxDateSpan +// wxDateTime and timezones +// ---------------------------------------------------------------------------- + +inline wxDateTime +wxDateTime::ToTimezone(const wxDateTime::TimeZone& tz, bool noDST) const +{ + MODIFY_AND_RETURN( MakeTimezone(tz, noDST) ); +} + +inline wxDateTime +wxDateTime::FromTimezone(const wxDateTime::TimeZone& tz, bool noDST) const +{ + MODIFY_AND_RETURN( MakeFromTimezone(tz, noDST) ); +} + +// ---------------------------------------------------------------------------- +// wxTimeSpan construction // ---------------------------------------------------------------------------- -// arithmetics -// ----------- +inline wxTimeSpan::wxTimeSpan(long hours, + long minutes, + wxLongLong seconds, + wxLongLong milliseconds) +{ + // assign first to avoid precision loss + m_diff = hours; + m_diff *= 60l; + m_diff += minutes; + m_diff *= 60l; + m_diff += seconds; + m_diff *= 1000l; + m_diff += milliseconds; +} + +// ---------------------------------------------------------------------------- +// wxTimeSpan accessors +// ---------------------------------------------------------------------------- -inline WXDLLEXPORT wxDateSpan operator+(const wxDateSpan& ds1, - const wxDateSpan& ds2) +inline wxLongLong wxTimeSpan::GetSeconds() const { - return wxDateSpan(ds1.GetYears() + ds2.GetYears(), - ds1.GetMonths() + ds2.GetMonths(), - ds1.GetWeeks() + ds2.GetWeeks(), - ds1.GetDays() + ds2.GetDays()); + return m_diff / 1000l; } -inline WXDLLEXPORT wxDateSpan operator-(const wxDateSpan& ds1, - const wxDateSpan& ds2) +inline int wxTimeSpan::GetMinutes() const { - return wxDateSpan(ds1.GetYears() - ds2.GetYears(), - ds1.GetMonths() - ds2.GetMonths(), - ds1.GetWeeks() - ds2.GetWeeks(), - ds1.GetDays() - ds2.GetDays()); + // For compatibility, this method (and the other accessors) return int, + // even though GetLo() actually returns unsigned long with greater range. + return static_cast((GetSeconds() / 60l).GetLo()); } -inline WXDLLEXPORT wxDateSpan operator*(const wxDateSpan& ds, int n) +inline int wxTimeSpan::GetHours() const { - return wxDateSpan(ds).Multiply(n); + return GetMinutes() / 60; } -inline WXDLLEXPORT wxDateSpan operator*(int n, const wxDateSpan& ds) +inline int wxTimeSpan::GetDays() const { - return wxDateSpan(ds).Multiply(n); + return GetHours() / 24; } -// ============================================================================ -// other helper functions -// ============================================================================ +inline int wxTimeSpan::GetWeeks() const +{ + return GetDays() / 7; +} // ---------------------------------------------------------------------------- -// iteration helpers: can be used to write a for loop over enum variable like -// this: -// for ( m = wxDateTime::Jan; m < wxDateTime::Inv_Month; wxNextMonth(m) ) +// wxTimeSpan arithmetics // ---------------------------------------------------------------------------- -inline WXDLLEXPORT void wxNextMonth(wxDateTime::Month& m) +inline wxTimeSpan wxTimeSpan::Add(const wxTimeSpan& diff) const +{ + return wxTimeSpan(m_diff + diff.GetValue()); +} + +inline wxTimeSpan& wxTimeSpan::Add(const wxTimeSpan& diff) { - wxASSERT_MSG( m < wxDateTime::Inv_Month, _T("invalid month") ); + m_diff += diff.GetValue(); + + return *this; +} - // no wrapping or the for loop above would never end! - m = (wxDateTime::Month)(m + 1); +inline wxTimeSpan wxTimeSpan::Subtract(const wxTimeSpan& diff) const +{ + return wxTimeSpan(m_diff - diff.GetValue()); } -inline WXDLLEXPORT void wxPrevMonth(wxDateTime::Month& m) +inline wxTimeSpan& wxTimeSpan::Subtract(const wxTimeSpan& diff) { - wxASSERT_MSG( m < wxDateTime::Inv_Month, _T("invalid month") ); + m_diff -= diff.GetValue(); - m = m == wxDateTime::Jan ? wxDateTime::Inv_Month - : (wxDateTime::Month)(m - 1); + return *this; } -inline WXDLLEXPORT void wxNextWDay(wxDateTime::WeekDay& wd) +inline wxTimeSpan& wxTimeSpan::Multiply(int n) { - wxASSERT_MSG( wd < wxDateTime::Inv_WeekDay, _T("invalid week day") ); + m_diff *= (long)n; - // no wrapping or the for loop above would never end! - wd = (wxDateTime::WeekDay)(wd + 1); + return *this; } -inline WXDLLEXPORT void wxPrevWDay(wxDateTime::WeekDay& wd) +inline wxTimeSpan wxTimeSpan::Multiply(int n) const { - wxASSERT_MSG( wd < wxDateTime::Inv_WeekDay, _T("invalid week day") ); + return wxTimeSpan(m_diff * (long)n); +} - wd = wd == wxDateTime::Sun ? wxDateTime::Inv_WeekDay - : (wxDateTime::WeekDay)(wd - 1); +inline wxTimeSpan wxTimeSpan::Abs() const +{ + return wxTimeSpan(GetValue().Abs()); } +inline bool wxTimeSpan::IsEqualTo(const wxTimeSpan& ts) const +{ + return GetValue() == ts.GetValue(); +} + +inline bool wxTimeSpan::IsLongerThan(const wxTimeSpan& ts) const +{ + return GetValue().Abs() > ts.GetValue().Abs(); +} + +inline bool wxTimeSpan::IsShorterThan(const wxTimeSpan& ts) const +{ + return GetValue().Abs() < ts.GetValue().Abs(); +} + +// ---------------------------------------------------------------------------- +// wxDateSpan +// ---------------------------------------------------------------------------- + +inline wxDateSpan& wxDateSpan::operator+=(const wxDateSpan& other) +{ + m_years += other.m_years; + m_months += other.m_months; + m_weeks += other.m_weeks; + m_days += other.m_days; + + return *this; +} + +inline wxDateSpan& wxDateSpan::Add(const wxDateSpan& other) +{ + return *this += other; +} + +inline wxDateSpan wxDateSpan::Add(const wxDateSpan& other) const +{ + wxDateSpan ds(*this); + ds.Add(other); + return ds; +} + +inline wxDateSpan& wxDateSpan::Multiply(int factor) +{ + m_years *= factor; + m_months *= factor; + m_weeks *= factor; + m_days *= factor; + + return *this; +} + +inline wxDateSpan wxDateSpan::Multiply(int factor) const +{ + wxDateSpan ds(*this); + ds.Multiply(factor); + return ds; +} + +inline wxDateSpan wxDateSpan::Negate() const +{ + return wxDateSpan(-m_years, -m_months, -m_weeks, -m_days); +} + +inline wxDateSpan& wxDateSpan::Neg() +{ + m_years = -m_years; + m_months = -m_months; + m_weeks = -m_weeks; + m_days = -m_days; + + return *this; +} + +inline wxDateSpan& wxDateSpan::operator-=(const wxDateSpan& other) +{ + return *this += other.Negate(); +} + +inline wxDateSpan& wxDateSpan::Subtract(const wxDateSpan& other) +{ + return *this -= other; +} + +inline wxDateSpan wxDateSpan::Subtract(const wxDateSpan& other) const +{ + wxDateSpan ds(*this); + ds.Subtract(other); + return ds; +} + +#undef MILLISECONDS_PER_DAY + +#undef MODIFY_AND_RETURN + +// ============================================================================ +// binary operators +// ============================================================================ + +// ---------------------------------------------------------------------------- +// wxTimeSpan operators +// ---------------------------------------------------------------------------- + +wxTimeSpan WXDLLIMPEXP_BASE operator*(int n, const wxTimeSpan& ts); + +// ---------------------------------------------------------------------------- +// wxDateSpan +// ---------------------------------------------------------------------------- + +wxDateSpan WXDLLIMPEXP_BASE operator*(int n, const wxDateSpan& ds); + +// ============================================================================ +// other helper functions +// ============================================================================ + +// ---------------------------------------------------------------------------- +// iteration helpers: can be used to write a for loop over enum variable like +// this: +// for ( m = wxDateTime::Jan; m < wxDateTime::Inv_Month; wxNextMonth(m) ) +// ---------------------------------------------------------------------------- + +WXDLLIMPEXP_BASE void wxNextMonth(wxDateTime::Month& m); +WXDLLIMPEXP_BASE void wxPrevMonth(wxDateTime::Month& m); +WXDLLIMPEXP_BASE void wxNextWDay(wxDateTime::WeekDay& wd); +WXDLLIMPEXP_BASE void wxPrevWDay(wxDateTime::WeekDay& wd); + +#endif // wxUSE_DATETIME + #endif // _WX_DATETIME_H