X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3ca6a5f04692678cd2d9f3ea0843fc3f5a0b254f..0e0d3ae110601e631aa4b153a06c5544aa63057d:/src/common/datetime.cpp diff --git a/src/common/datetime.cpp b/src/common/datetime.cpp index 5c212e190e..8346806913 100644 --- a/src/common/datetime.cpp +++ b/src/common/datetime.cpp @@ -1,5 +1,5 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: wx/datetime.h +// Name: src/common/datetime.cpp // Purpose: implementation of time/date related classes // Author: Vadim Zeitlin // Modified by: @@ -13,7 +13,7 @@ // so long as the above copyright and this permission statement // are retained in all copies. // -// Licence: wxWindows license +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// /* @@ -52,10 +52,6 @@ // headers // ---------------------------------------------------------------------------- -#ifdef __GNUG__ - #pragma implementation "datetime.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -63,28 +59,59 @@ #pragma hdrstop #endif +#if !defined(wxUSE_DATETIME) || wxUSE_DATETIME + #ifndef WX_PRECOMP + #ifdef __WXMSW__ + #include "wx/msw/wrapwin.h" + #endif #include "wx/string.h" - #include "wx/intl.h" #include "wx/log.h" + #include "wx/intl.h" + #include "wx/stopwatch.h" // for wxGetLocalTimeMillis() + #include "wx/module.h" + #include "wx/crt.h" #endif // WX_PRECOMP #include "wx/thread.h" #include "wx/tokenzr.h" -#include "wx/module.h" - -#define wxDEFINE_TIME_CONSTANTS // before including datetime.h #include +#ifdef __WINDOWS__ + #include + #ifndef __WXWINCE__ + #include + #endif +#endif + #include "wx/datetime.h" -#include "wx/timer.h" // for wxGetLocalTimeMillis() +const long wxDateTime::TIME_T_FACTOR = 1000l; + +#if wxUSE_EXTENDED_RTTI + +template<> void wxStringReadValue(const wxString &s , wxDateTime &data ) +{ + data.ParseFormat(s,"%Y-%m-%d %H:%M:%S", NULL); +} + +template<> void wxStringWriteValue(wxString &s , const wxDateTime &data ) +{ + s = data.Format("%Y-%m-%d %H:%M:%S"); +} + +wxCUSTOM_TYPE_INFO(wxDateTime, wxToStringConverter , wxFromStringConverter) + +#endif // wxUSE_EXTENDED_RTTI + +// // ---------------------------------------------------------------------------- // conditional compilation // ---------------------------------------------------------------------------- -#if defined(HAVE_STRPTIME) && defined(__LINUX__) +#if defined(HAVE_STRPTIME) && defined(__GLIBC__) && \ + ((__GLIBC__ == 2) && (__GLIBC_MINOR__ == 0)) // glibc 2.0.7 strptime() is broken - the following snippet causes it to // crash (instead of just failing): // @@ -95,16 +122,168 @@ #undef HAVE_STRPTIME #endif // broken strptime() -#ifndef WX_TIMEZONE - #if defined(__BORLANDC__) || defined(__MINGW32__) || defined(__VISAGECPP__) +#if defined(HAVE_STRPTIME) && defined(__DARWIN__) && defined(_MSL_USING_MW_C_HEADERS) && _MSL_USING_MW_C_HEADERS + // configure detects strptime as linkable because it's in the OS X + // System library but MSL headers don't declare it. + +// char *strptime(const char *, const char *, struct tm *); + // However, we DON'T want to just provide it here because we would + // crash and/or overwrite data when strptime from OS X tries + // to fill in MW's struct tm which is two fields shorter (no TZ stuff) + // So for now let's just say we don't have strptime + #undef HAVE_STRPTIME +#endif + +#if defined(__MWERKS__) && wxUSE_UNICODE + #include +#endif + +#if !defined(WX_TIMEZONE) && !defined(WX_GMTOFF_IN_TM) + #if defined(__WXPALMOS__) + #define WX_GMTOFF_IN_TM + #elif defined(__BORLANDC__) || defined(__MINGW32__) || defined(__VISAGECPP__) #define WX_TIMEZONE _timezone #elif defined(__MWERKS__) long wxmw_timezone = 28800; - #define WX_TIMEZONE wxmw_timezone; + #define WX_TIMEZONE wxmw_timezone + #elif defined(__DJGPP__) || defined(__WINE__) + #include + #include + static long wxGetTimeZone() + { + static long timezone = MAXLONG; // invalid timezone + if (timezone == MAXLONG) + { + struct timeb tb; + ftime(&tb); + timezone = tb.timezone; + } + return timezone; + } + #define WX_TIMEZONE wxGetTimeZone() + #elif defined(__DARWIN__) + #define WX_GMTOFF_IN_TM + #elif defined(__WXWINCE__) && defined(__VISUALC8__) + // _timezone is not present in dynamic run-time library + #if 0 + // Solution (1): use the function equivalent of _timezone + static long wxGetTimeZone() + { + static long s_Timezone = MAXLONG; // invalid timezone + if (s_Timezone == MAXLONG) + { + int t; + _get_timezone(& t); + s_Timezone = (long) t; + } + return s_Timezone; + } + #define WX_TIMEZONE wxGetTimeZone() + #elif 1 + // Solution (2): using GetTimeZoneInformation + static long wxGetTimeZone() + { + static long timezone = MAXLONG; // invalid timezone + if (timezone == MAXLONG) + { + TIME_ZONE_INFORMATION tzi; + ::GetTimeZoneInformation(&tzi); + timezone = tzi.Bias; + } + return timezone; + } + #define WX_TIMEZONE wxGetTimeZone() + #else + // Old method using _timezone: this symbol doesn't exist in the dynamic run-time library (i.e. using /MD) + #define WX_TIMEZONE _timezone + #endif #else // unknown platform - try timezone #define WX_TIMEZONE timezone #endif -#endif // !WX_TIMEZONE +#endif // !WX_TIMEZONE && !WX_GMTOFF_IN_TM + +// everyone has strftime except Win CE unless VC8 is used +#if !defined(__WXWINCE__) || defined(__VISUALC8__) + #define HAVE_STRFTIME +#endif + +// NB: VC8 safe time functions could/should be used for wxMSW as well probably +#if defined(__WXWINCE__) && defined(__VISUALC8__) + +struct tm *wxLocaltime_r(const time_t *t, struct tm* tm) +{ + __time64_t t64 = *t; + return _localtime64_s(tm, &t64) == 0 ? tm : NULL; +} + +struct tm *wxGmtime_r(const time_t* t, struct tm* tm) +{ + __time64_t t64 = *t; + return _gmtime64_s(tm, &t64) == 0 ? tm : NULL; +} + +#else // !wxWinCE with VC8 + +#if (!defined(HAVE_LOCALTIME_R) || !defined(HAVE_GMTIME_R)) && wxUSE_THREADS && !defined(__WINDOWS__) +static wxMutex timeLock; +#endif + +#ifndef HAVE_LOCALTIME_R +struct tm *wxLocaltime_r(const time_t* ticks, struct tm* temp) +{ +#if wxUSE_THREADS && !defined(__WINDOWS__) + // No need to waste time with a mutex on windows since it's using + // thread local storage for localtime anyway. + wxMutexLocker locker(timeLock); +#endif + + // Borland CRT crashes when passed 0 ticks for some reason, see SF bug 1704438 +#ifdef __BORLANDC__ + if ( !*ticks ) + return NULL; +#endif + + const tm * const t = localtime(ticks); + if ( !t ) + return NULL; + + memcpy(temp, t, sizeof(struct tm)); + return temp; +} +#endif // !HAVE_LOCALTIME_R + +#ifndef HAVE_GMTIME_R +struct tm *wxGmtime_r(const time_t* ticks, struct tm* temp) +{ +#if wxUSE_THREADS && !defined(__WINDOWS__) + // No need to waste time with a mutex on windows since it's + // using thread local storage for gmtime anyway. + wxMutexLocker locker(timeLock); +#endif + +#ifdef __BORLANDC__ + if ( !*ticks ) + return NULL; +#endif + + const tm * const t = gmtime(ticks); + if ( !t ) + return NULL; + + memcpy(temp, gmtime(ticks), sizeof(struct tm)); + return temp; +} +#endif // !HAVE_GMTIME_R + +#endif // wxWinCE with VC8/other platforms + +// ---------------------------------------------------------------------------- +// macros +// ---------------------------------------------------------------------------- + +// debugging helper: just a convenient replacement of wxCHECK() +#define wxDATETIME_CHECK(expr, msg) \ + wxCHECK2_MSG(expr, *this = wxInvalidDateTime; return *this, msg) // ---------------------------------------------------------------------------- // private classes @@ -117,13 +296,13 @@ public: { wxDateTimeHolidayAuthority::AddAuthority(new wxDateTimeWorkDays); - return TRUE; + return true; } virtual void OnExit() { wxDateTimeHolidayAuthority::ClearAllAuthorities(); - wxDateTimeHolidayAuthority::ms_authorities.Clear(); + wxDateTimeHolidayAuthority::ms_authorities.clear(); } private: @@ -139,21 +318,30 @@ IMPLEMENT_DYNAMIC_CLASS(wxDateTimeHolidaysModule, wxModule) // some trivial ones static const int MONTHS_IN_YEAR = 12; -static const int SECONDS_IN_MINUTE = 60; +static const int SEC_PER_MIN = 60; + +static const int MIN_PER_HOUR = 60; + +static const int HOURS_PER_DAY = 24; static const long SECONDS_PER_DAY = 86400l; +static const int DAYS_PER_WEEK = 7; + static const long MILLISECONDS_PER_DAY = 86400000l; // this is the integral part of JDN of the midnight of Jan 1, 1970 // (i.e. JDN(Jan 1, 1970) = 2440587.5) static const long EPOCH_JDN = 2440587l; +// used only in asserts +#ifdef __WXDEBUG__ // the date of JDN -0.5 (as we don't work with fractional parts, this is the // reference date for us) is Nov 24, 4714BC static const int JDN_0_YEAR = -4713; static const int JDN_0_MONTH = wxDateTime::Nov; static const int JDN_0_DAY = 24; +#endif // __WXDEBUG__ // the constants used for JDN calculations static const long JDN_OFFSET = 32046l; @@ -173,33 +361,28 @@ static const wxDateTime::wxDateTime_t gs_cumulatedDays[2][MONTHS_IN_YEAR] = // global data // ---------------------------------------------------------------------------- -static wxDateTime gs_dtDefault; +const char *wxDefaultDateTimeFormat = "%c"; +const char *wxDefaultTimeSpanFormat = "%H:%M:%S"; -wxDateTime& wxDefaultDateTime = gs_dtDefault; +// in the fine tradition of ANSI C we use our equivalent of (time_t)-1 to +// indicate an invalid wxDateTime object +const wxDateTime wxDefaultDateTime; wxDateTime::Country wxDateTime::ms_country = wxDateTime::Country_Unknown; -// ---------------------------------------------------------------------------- -// private globals -// ---------------------------------------------------------------------------- - -// a critical section is needed to protect GetTimeZone() static -// variable in MT case -#if wxUSE_THREADS - static wxCriticalSection gs_critsectTimezone; -#endif // wxUSE_THREADS - // ---------------------------------------------------------------------------- // private functions // ---------------------------------------------------------------------------- // debugger helper: shows what the date really is #ifdef __WXDEBUG__ -extern const wxChar *wxDumpDate(const wxDateTime* dt) +extern const char *wxDumpDate(const wxDateTime* dt) { - static wxChar buf[128]; + static char buf[128]; - wxStrcpy(buf, dt->Format(_T("%Y-%m-%d (%a) %H:%M:%S"))); + wxString fmt(dt->Format("%Y-%m-%d (%a) %H:%M:%S")); + wxStrncpy(buf, fmt + " (" + dt->GetValue().ToString() + " ticks)", + WXSIZEOF(buf)); return buf; } @@ -220,25 +403,36 @@ wxDateTime::wxDateTime_t GetNumOfDaysInMonth(int year, wxDateTime::Month month) return daysInMonth[wxDateTime::IsLeapYear(year)][month]; } -// ensure that the timezone variable is set by calling localtime +// returns the time zone in the C sense, i.e. the difference UTC - local +// (in seconds) static int GetTimeZone() { - // set to TRUE when the timezone is set - static bool s_timezoneSet = FALSE; - - wxCRIT_SECT_LOCKER(lock, gs_critsectTimezone); + // set to true when the timezone is set + static bool s_timezoneSet = false; + static long gmtoffset = LONG_MAX; // invalid timezone + // ensure that the timezone variable is set by calling wxLocaltime_r if ( !s_timezoneSet ) { - // just call localtime() instead of figuring out whether this system - // supports tzset(), _tzset() or something else - time_t t; - (void)localtime(&t); + // just call wxLocaltime_r() instead of figuring out whether this + // system supports tzset(), _tzset() or something else + time_t t = 0; + struct tm tm; + + wxLocaltime_r(&t, &tm); + s_timezoneSet = true; - s_timezoneSet = TRUE; +#ifdef WX_GMTOFF_IN_TM + // note that GMT offset is the opposite of time zone and so to return + // consistent results in both WX_GMTOFF_IN_TM and !WX_GMTOFF_IN_TM + // cases we have to negate it + gmtoffset = -tm.tm_gmtoff; +#else // !WX_GMTOFF_IN_TM + gmtoffset = WX_TIMEZONE; +#endif // WX_GMTOFF_IN_TM/!WX_GMTOFF_IN_TM } - return (int)WX_TIMEZONE; + return (int)gmtoffset; } // return the integral part of the JDN for the midnight of the given date (to @@ -281,28 +475,75 @@ static long GetTruncatedJDN(wxDateTime::wxDateTime_t day, - JDN_OFFSET; } -// this function is a wrapper around strftime(3) -static wxString CallStrftime(const wxChar *format, const tm* tm) +#ifdef HAVE_STRFTIME + +// this function is a wrapper around strftime(3) adding error checking +static wxString CallStrftime(const wxString& format, const tm* tm) { wxChar buf[4096]; + // Create temp wxString here to work around mingw/cygwin bug 1046059 + // http://sourceforge.net/tracker/?func=detail&atid=102435&aid=1046059&group_id=2435 + wxString s; + if ( !wxStrftime(buf, WXSIZEOF(buf), format, tm) ) { - // buffer is too small? + // if the format is valid, buffer must be too small? wxFAIL_MSG(_T("strftime() failed")); + + buf[0] = '\0'; } - return wxString(buf); + s = buf; + return s; } +#endif // HAVE_STRFTIME + +#ifdef HAVE_STRPTIME + +#if wxUSE_UNIX && !defined(HAVE_STRPTIME_DECL) + // configure detected that we had strptime() but not its declaration, + // provide it ourselves + extern "C" char *strptime(const char *, const char *, struct tm *); +#endif + +// Unicode-friendly strptime() wrapper +static const wxStringCharType * +CallStrptime(const wxStringCharType *input, const char *fmt, tm *tm) +{ + // the problem here is that strptime() returns pointer into the string we + // passed to it while we're really interested in the pointer into the + // original, Unicode, string so we try to transform the pointer back +#if wxUSE_UNICODE_WCHAR + wxCharBuffer inputMB(wxConvertWX2MB(input)); +#else // ASCII + const char * const inputMB = input; +#endif // Unicode/Ascii + + const char *result = strptime(inputMB, fmt, tm); + if ( !result ) + return NULL; + +#if wxUSE_UNICODE_WCHAR + // FIXME: this is wrong in presence of surrogates &c + return input + (result - inputMB.data()); +#else // ASCII + return result; +#endif // Unicode/Ascii +} + +#endif // HAVE_STRPTIME + // if year and/or month have invalid values, replace them with the current ones static void ReplaceDefaultYearMonthWithCurrent(int *year, wxDateTime::Month *month) { struct tm *tmNow = NULL; + struct tm tmstruct; if ( *year == wxDateTime::Inv_Year ) { - tmNow = wxDateTime::GetTmNow(); + tmNow = wxDateTime::GetTmNow(&tmstruct); *year = 1900 + tmNow->tm_year; } @@ -310,7 +551,7 @@ static void ReplaceDefaultYearMonthWithCurrent(int *year, if ( *month == wxDateTime::Inv_Month ) { if ( !tmNow ) - tmNow = wxDateTime::GetTmNow(); + tmNow = wxDateTime::GetTmNow(&tmstruct); *month = (wxDateTime::Month)tmNow->tm_mon; } @@ -391,8 +632,17 @@ static wxDateTime::WeekDay GetWeekDayFromName(const wxString& name, int flags) return wd; } +/* static */ +struct tm *wxDateTime::GetTmNow(struct tm *tmstruct) +{ + time_t t = GetTimeNow(); + return wxLocaltime_r(&t, tmstruct); +} + // scans all digits (but no more than len) and returns the resulting number -static bool GetNumericToken(size_t len, const wxChar*& p, unsigned long *number) +static bool GetNumericToken(size_t len, + const wxStringCharType*& p, + unsigned long *number) { size_t n = 1; wxString s; @@ -404,11 +654,11 @@ static bool GetNumericToken(size_t len, const wxChar*& p, unsigned long *number) break; } - return !!s && s.ToULong(number); + return !s.empty() && s.ToULong(number); } // scans all alphabetic characters and returns the resulting string -static wxString GetAlphaToken(const wxChar*& p) +static wxString GetAlphaToken(const wxStringCharType*& p) { wxString s; while ( wxIsalpha(*p) ) @@ -440,14 +690,14 @@ wxDateTime::Tm::Tm(const struct tm& tm, const TimeZone& tz) : m_tz(tz) { msec = 0; - sec = tm.tm_sec; - min = tm.tm_min; - hour = tm.tm_hour; - mday = tm.tm_mday; + sec = (wxDateTime::wxDateTime_t)tm.tm_sec; + min = (wxDateTime::wxDateTime_t)tm.tm_min; + hour = (wxDateTime::wxDateTime_t)tm.tm_hour; + mday = (wxDateTime::wxDateTime_t)tm.tm_mday; mon = (wxDateTime::Month)tm.tm_mon; year = 1900 + tm.tm_year; - wday = tm.tm_wday; - yday = tm.tm_yday; + wday = (wxDateTime::wxDateTime_t)tm.tm_wday; + yday = (wxDateTime::wxDateTime_t)tm.tm_yday; } bool wxDateTime::Tm::IsValid() const @@ -463,7 +713,7 @@ void wxDateTime::Tm::ComputeWeekDay() // compute the week day from day/month/year: we use the dumbest algorithm // possible: just compute our JDN and then use the (simple to derive) // formula: weekday = (JDN + 1.5) % 7 - wday = (wxDateTime::WeekDay)(GetTruncatedJDN(mday, mon, year) + 2) % 7; + wday = (wxDateTime::wxDateTime_t)((GetTruncatedJDN(mday, mon, year) + 2) % 7); } void wxDateTime::Tm::AddMonths(int monDiff) @@ -501,7 +751,7 @@ void wxDateTime::Tm::AddDays(int dayDiff) dayDiff += GetNumOfDaysInMonth(year, mon); } - mday += dayDiff; + mday = (wxDateTime::wxDateTime_t)( mday + dayDiff ); while ( mday > GetNumOfDaysInMonth(year, mon) ) { mday -= GetNumOfDaysInMonth(year, mon); @@ -555,12 +805,13 @@ wxDateTime::TimeZone::TimeZone(wxDateTime::TZ tz) case wxDateTime::GMT10: case wxDateTime::GMT11: case wxDateTime::GMT12: + case wxDateTime::GMT13: m_offset = 3600*(tz - wxDateTime::GMT0); break; case wxDateTime::A_CST: // Central Standard Time in use in Australia = UTC + 9.5 - m_offset = 60l*(9*60 + 30); + m_offset = 60l*(9*MIN_PER_HOUR + MIN_PER_HOUR/2); break; default: @@ -595,7 +846,7 @@ bool wxDateTime::IsLeapYear(int year, wxDateTime::Calendar cal) { wxFAIL_MSG(_T("unknown calendar")); - return FALSE; + return false; } } @@ -704,8 +955,8 @@ wxDateTime::wxDateTime_t wxDateTime::GetNumberOfDays(wxDateTime::Month month, wxString wxDateTime::GetMonthName(wxDateTime::Month month, wxDateTime::NameFlags flags) { - wxCHECK_MSG( month != Inv_Month, _T(""), _T("invalid month") ); - + wxCHECK_MSG( month != Inv_Month, wxEmptyString, _T("invalid month") ); +#ifdef HAVE_STRFTIME // notice that we must set all the fields to avoid confusing libc (GNU one // gets confused to a crash if we don't do this) tm tm; @@ -713,18 +964,63 @@ wxString wxDateTime::GetMonthName(wxDateTime::Month month, tm.tm_mon = month; return CallStrftime(flags == Name_Abbr ? _T("%b") : _T("%B"), &tm); +#else // !HAVE_STRFTIME + wxString ret; + switch(month) + { + case Jan: + ret = (flags == Name_Abbr ? wxT("Jan"): wxT("January")); + break; + case Feb: + ret = (flags == Name_Abbr ? wxT("Feb"): wxT("Febuary")); + break; + case Mar: + ret = (flags == Name_Abbr ? wxT("Mar"): wxT("March")); + break; + case Apr: + ret = (flags == Name_Abbr ? wxT("Apr"): wxT("April")); + break; + case May: + ret = (flags == Name_Abbr ? wxT("May"): wxT("May")); + break; + case Jun: + ret = (flags == Name_Abbr ? wxT("Jun"): wxT("June")); + break; + case Jul: + ret = (flags == Name_Abbr ? wxT("Jul"): wxT("July")); + break; + case Aug: + ret = (flags == Name_Abbr ? wxT("Aug"): wxT("August")); + break; + case Sep: + ret = (flags == Name_Abbr ? wxT("Sep"): wxT("September")); + break; + case Oct: + ret = (flags == Name_Abbr ? wxT("Oct"): wxT("October")); + break; + case Nov: + ret = (flags == Name_Abbr ? wxT("Nov"): wxT("November")); + break; + case Dec: + ret = (flags == Name_Abbr ? wxT("Dec"): wxT("December")); + break; + } + return ret; +#endif // HAVE_STRFTIME/!HAVE_STRFTIME } /* static */ wxString wxDateTime::GetWeekDayName(wxDateTime::WeekDay wday, wxDateTime::NameFlags flags) { - wxCHECK_MSG( wday != Inv_WeekDay, _T(""), _T("invalid weekday") ); - - // take some arbitrary Sunday + wxCHECK_MSG( wday != Inv_WeekDay, wxEmptyString, _T("invalid weekday") ); +#ifdef HAVE_STRFTIME + // take some arbitrary Sunday (but notice that the day should be such that + // after adding wday to it below we still have a valid date, e.g. don't + // take 28 here!) tm tm; InitTm(tm); - tm.tm_mday = 28; + tm.tm_mday = 21; tm.tm_mon = Nov; tm.tm_year = 99; @@ -736,6 +1032,34 @@ wxString wxDateTime::GetWeekDayName(wxDateTime::WeekDay wday, // ... and call strftime() return CallStrftime(flags == Name_Abbr ? _T("%a") : _T("%A"), &tm); +#else // !HAVE_STRFTIME + wxString ret; + switch(wday) + { + case Sun: + ret = (flags == Name_Abbr ? wxT("Sun") : wxT("Sunday")); + break; + case Mon: + ret = (flags == Name_Abbr ? wxT("Mon") : wxT("Monday")); + break; + case Tue: + ret = (flags == Name_Abbr ? wxT("Tue") : wxT("Tuesday")); + break; + case Wed: + ret = (flags == Name_Abbr ? wxT("Wed") : wxT("Wednesday")); + break; + case Thu: + ret = (flags == Name_Abbr ? wxT("Thu") : wxT("Thursday")); + break; + case Fri: + ret = (flags == Name_Abbr ? wxT("Fri") : wxT("Friday")); + break; + case Sat: + ret = (flags == Name_Abbr ? wxT("Sat") : wxT("Saturday")); + break; + } + return ret; +#endif // HAVE_STRFTIME/!HAVE_STRFTIME } /* static */ @@ -743,14 +1067,29 @@ void wxDateTime::GetAmPmStrings(wxString *am, wxString *pm) { tm tm; InitTm(tm); + wxChar buffer[64]; + // @Note: Do not call 'CallStrftime' here! CallStrftime checks the return code + // and causes an assertion failed if the buffer is to small (which is good) - OR - + // if strftime does not return anything because the format string is invalid - OR - + // if there are no 'am' / 'pm' tokens defined for the current locale (which is not good). + // wxDateTime::ParseTime will try several different formats to parse the time. + // As a result, GetAmPmStrings might get called, even if the current locale + // does not define any 'am' / 'pm' tokens. In this case, wxStrftime would + // assert, even though it is a perfectly legal use. if ( am ) { - *am = CallStrftime(_T("%p"), &tm); + if (wxStrftime(buffer, sizeof(buffer)/sizeof(wxChar), _T("%p"), &tm) > 0) + *am = wxString(buffer); + else + *am = wxString(); } if ( pm ) { tm.tm_hour = 13; - *pm = CallStrftime(_T("%p"), &tm); + if (wxStrftime(buffer, sizeof(buffer)/sizeof(wxChar), _T("%p"), &tm) > 0) + *pm = wxString(buffer); + else + *pm = wxString(); } } @@ -763,12 +1102,13 @@ void wxDateTime::GetAmPmStrings(wxString *am, wxString *pm) wxDateTime::Country wxDateTime::GetCountry() { // TODO use LOCALE_ICOUNTRY setting under Win32 - +#ifndef __WXWINCE__ if ( ms_country == Country_Unknown ) { // try to guess from the time zone name time_t t = time(NULL); - struct tm *tm = localtime(&t); + struct tm tmstruct; + struct tm *tm = wxLocaltime_r(&t, &tmstruct); wxString tz = CallStrftime(_T("%Z"), tm); if ( tz == _T("WET") || tz == _T("WEST") ) @@ -797,6 +1137,9 @@ wxDateTime::Country wxDateTime::GetCountry() ms_country = USA; } } +#else // __WXWINCE__ + ms_country = USA; +#endif // !__WXWINCE__/__WXWINCE__ return ms_country; } @@ -887,9 +1230,6 @@ wxDateTime wxDateTime::GetBeginDST(int year, Country country) } dt += wxTimeSpan::Hours(1); - - // disable DST tests because it could result in an infinite recursion! - dt.MakeGMT(TRUE); } else switch ( country ) { @@ -988,9 +1328,6 @@ wxDateTime wxDateTime::GetEndDST(int year, Country country) } dt += wxTimeSpan::Hours(1); - - // disable DST tests because it could result in an infinite recursion! - dt.MakeGMT(TRUE); } else switch ( country ) { @@ -1046,8 +1383,6 @@ wxDateTime wxDateTime::GetEndDST(int year, Country country) // the values in the tm structure contain the local time wxDateTime& wxDateTime::Set(const struct tm& tm) { - wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); - struct tm tm2(tm); time_t timet = mktime(&tm2); @@ -1057,21 +1392,18 @@ wxDateTime& wxDateTime::Set(const struct tm& tm) // less than timezone - try to make it work for this case if ( tm2.tm_year == 70 && tm2.tm_mon == 0 && tm2.tm_mday == 1 ) { - // add timezone to make sure that date is in range - tm2.tm_sec -= GetTimeZone(); - - timet = mktime(&tm2); - if ( timet != (time_t)-1 ) - { - timet += GetTimeZone(); - - return Set(timet); - } + return Set((time_t)( + GetTimeZone() + + tm2.tm_hour * MIN_PER_HOUR * SEC_PER_MIN + + tm2.tm_min * SEC_PER_MIN + + tm2.tm_sec)); } wxFAIL_MSG( _T("mktime() failed") ); - return wxInvalidDateTime; + *this = wxInvalidDateTime; + + return *this; } else { @@ -1084,25 +1416,35 @@ wxDateTime& wxDateTime::Set(wxDateTime_t hour, wxDateTime_t second, wxDateTime_t millisec) { - wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); - // we allow seconds to be 61 to account for the leap seconds, even if we // don't use them really - wxCHECK_MSG( hour < 24 && second < 62 && minute < 60 && millisec < 1000, - wxInvalidDateTime, - _T("Invalid time in wxDateTime::Set()") ); + wxDATETIME_CHECK( hour < 24 && + second < 62 && + minute < 60 && + millisec < 1000, + _T("Invalid time in wxDateTime::Set()") ); // get the current date from system - struct tm *tm = GetTmNow(); + struct tm tmstruct; + struct tm *tm = GetTmNow(&tmstruct); - wxCHECK_MSG( tm, wxInvalidDateTime, _T("localtime() failed") ); + wxDATETIME_CHECK( tm, _T("wxLocaltime_r() failed") ); + + // make a copy so it isn't clobbered by the call to mktime() below + struct tm tm1(*tm); // adjust the time - tm->tm_hour = hour; - tm->tm_min = minute; - tm->tm_sec = second; + tm1.tm_hour = hour; + tm1.tm_min = minute; + tm1.tm_sec = second; + + // and the DST in case it changes on this date + struct tm tm2(tm1); + mktime(&tm2); + if ( tm2.tm_isdst != tm1.tm_isdst ) + tm1.tm_isdst = tm2.tm_isdst; - (void)Set(*tm); + (void)Set(tm1); // and finally adjust milliseconds return SetMillisecond(millisec); @@ -1116,17 +1458,16 @@ wxDateTime& wxDateTime::Set(wxDateTime_t day, wxDateTime_t second, wxDateTime_t millisec) { - wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); - - wxCHECK_MSG( hour < 24 && second < 62 && minute < 60 && millisec < 1000, - wxInvalidDateTime, - _T("Invalid time in wxDateTime::Set()") ); + wxDATETIME_CHECK( hour < 24 && + second < 62 && + minute < 60 && + millisec < 1000, + _T("Invalid time in wxDateTime::Set()") ); ReplaceDefaultYearMonthWithCurrent(&year, &month); - wxCHECK_MSG( (0 < day) && (day <= GetNumberOfDays(month, year)), - wxInvalidDateTime, - _T("Invalid date in wxDateTime::Set()") ); + wxDATETIME_CHECK( (0 < day) && (day <= GetNumberOfDays(month, year)), + _T("Invalid date in wxDateTime::Set()") ); // the range of time_t type (inclusive) static const int yearMinInRange = 1970; @@ -1150,7 +1491,10 @@ wxDateTime& wxDateTime::Set(wxDateTime_t day, (void)Set(tm); // and finally adjust milliseconds - return SetMillisecond(millisec); + if (IsValid()) + SetMillisecond(millisec); + + return *this; } else { @@ -1175,9 +1519,9 @@ wxDateTime& wxDateTime::Set(double jdn) // EPOCH_JDN + 0.5 jdn -= EPOCH_JDN + 0.5; - jdn *= MILLISECONDS_PER_DAY; + m_time.Assign(jdn*MILLISECONDS_PER_DAY); - m_time.Assign(jdn); + // JDNs always are in UTC, so we don't need any adjustments for time zone return *this; } @@ -1199,6 +1543,95 @@ wxDateTime& wxDateTime::ResetTime() return *this; } +wxDateTime wxDateTime::GetDateOnly() const +{ + Tm tm = GetTm(); + tm.msec = + tm.sec = + tm.min = + tm.hour = 0; + return wxDateTime(tm); +} + +// ---------------------------------------------------------------------------- +// DOS Date and Time Format functions +// ---------------------------------------------------------------------------- +// the dos date and time value is an unsigned 32 bit value in the format: +// YYYYYYYMMMMDDDDDhhhhhmmmmmmsssss +// +// Y = year offset from 1980 (0-127) +// M = month (1-12) +// D = day of month (1-31) +// h = hour (0-23) +// m = minute (0-59) +// s = bisecond (0-29) each bisecond indicates two seconds +// ---------------------------------------------------------------------------- + +wxDateTime& wxDateTime::SetFromDOS(unsigned long ddt) +{ + struct tm tm; + InitTm(tm); + + long year = ddt & 0xFE000000; + year >>= 25; + year += 80; + tm.tm_year = year; + + long month = ddt & 0x1E00000; + month >>= 21; + month -= 1; + tm.tm_mon = month; + + long day = ddt & 0x1F0000; + day >>= 16; + tm.tm_mday = day; + + long hour = ddt & 0xF800; + hour >>= 11; + tm.tm_hour = hour; + + long minute = ddt & 0x7E0; + minute >>= 5; + tm.tm_min = minute; + + long second = ddt & 0x1F; + tm.tm_sec = second * 2; + + return Set(mktime(&tm)); +} + +unsigned long wxDateTime::GetAsDOS() const +{ + unsigned long ddt; + time_t ticks = GetTicks(); + struct tm tmstruct; + struct tm *tm = wxLocaltime_r(&ticks, &tmstruct); + wxCHECK_MSG( tm, ULONG_MAX, _T("time can't be represented in DOS format") ); + + long year = tm->tm_year; + year -= 80; + year <<= 25; + + long month = tm->tm_mon; + month += 1; + month <<= 21; + + long day = tm->tm_mday; + day <<= 16; + + long hour = tm->tm_hour; + hour <<= 11; + + long minute = tm->tm_min; + minute <<= 5; + + long second = tm->tm_sec; + second /= 2; + + ddt = year | month | day | hour | minute | second; + return ddt; +} + // ---------------------------------------------------------------------------- // time_t <-> broken down time conversions // ---------------------------------------------------------------------------- @@ -1211,29 +1644,30 @@ wxDateTime::Tm wxDateTime::GetTm(const TimeZone& tz) const if ( time != (time_t)-1 ) { // use C RTL functions + struct tm tmstruct; tm *tm; if ( tz.GetOffset() == -GetTimeZone() ) { // we are working with local time - tm = localtime(&time); + tm = wxLocaltime_r(&time, &tmstruct); // should never happen - wxCHECK_MSG( tm, Tm(), _T("localtime() failed") ); + wxCHECK_MSG( tm, Tm(), _T("wxLocaltime_r() failed") ); } else { time += (time_t)tz.GetOffset(); -#ifdef __VMS__ // time is unsigned so avoid warning +#if defined(__VMS__) || defined(__WATCOMC__) // time is unsigned so avoid warning int time2 = (int) time; if ( time2 >= 0 ) #else if ( time >= 0 ) #endif { - tm = gmtime(&time); + tm = wxGmtime_r(&time, &tmstruct); // should never happen - wxCHECK_MSG( tm, Tm(), _T("gmtime() failed") ); + wxCHECK_MSG( tm, Tm(), _T("wxGmtime_r() failed") ); } else { @@ -1309,8 +1743,6 @@ wxDateTime::Tm wxDateTime::GetTm(const TimeZone& tz) const // check that the algorithm gave us something reasonable wxASSERT_MSG( (0 < month) && (month <= 12), _T("invalid month") ); wxASSERT_MSG( (1 <= day) && (day < 32), _T("invalid day") ); - wxASSERT_MSG( (INT_MIN <= year) && (year <= INT_MAX), - _T("year range overflow") ); // construct Tm from these values Tm tm; @@ -1321,14 +1753,14 @@ wxDateTime::Tm wxDateTime::GetTm(const TimeZone& tz) const timeOnly -= tm.msec; timeOnly /= 1000; // now we have time in seconds - tm.sec = (wxDateTime_t)(timeOnly % 60); + tm.sec = (wxDateTime_t)(timeOnly % SEC_PER_MIN); timeOnly -= tm.sec; - timeOnly /= 60; // now we have time in minutes + timeOnly /= SEC_PER_MIN; // now we have time in minutes - tm.min = (wxDateTime_t)(timeOnly % 60); + tm.min = (wxDateTime_t)(timeOnly % MIN_PER_HOUR); timeOnly -= tm.min; - tm.hour = (wxDateTime_t)(timeOnly / 60); + tm.hour = (wxDateTime_t)(timeOnly / MIN_PER_HOUR); return tm; } @@ -1448,22 +1880,66 @@ wxDateTime& wxDateTime::Add(const wxDateSpan& diff) // Weekday and monthday stuff // ---------------------------------------------------------------------------- -bool wxDateTime::SetToTheWeek(wxDateTime_t numWeek, WeekDay weekday) +// convert Sun, Mon, ..., Sat into 6, 0, ..., 5 +static inline int ConvertWeekDayToMondayBase(int wd) { - int year = GetYear(); + return wd == wxDateTime::Sun ? 6 : wd - 1; +} + +/* static */ +wxDateTime +wxDateTime::SetToWeekOfYear(int year, wxDateTime_t numWeek, WeekDay wd) +{ + wxASSERT_MSG( numWeek > 0, + _T("invalid week number: weeks are counted from 1") ); // Jan 4 always lies in the 1st week of the year - Set(4, Jan, year); - SetToWeekDayInSameWeek(weekday) += wxDateSpan::Weeks(numWeek); + wxDateTime dt(4, Jan, year); + dt.SetToWeekDayInSameWeek(wd); + dt += wxDateSpan::Weeks(numWeek - 1); + return dt; +} + +#if WXWIN_COMPATIBILITY_2_6 +// use a separate function to avoid warnings about using deprecated +// SetToTheWeek in GetWeek below +static wxDateTime +SetToTheWeek(int year, + wxDateTime::wxDateTime_t numWeek, + wxDateTime::WeekDay weekday, + wxDateTime::WeekFlags flags) +{ + // Jan 4 always lies in the 1st week of the year + wxDateTime dt(4, wxDateTime::Jan, year); + dt.SetToWeekDayInSameWeek(weekday, flags); + dt += wxDateSpan::Weeks(numWeek - 1); + + return dt; +} + +bool wxDateTime::SetToTheWeek(wxDateTime_t numWeek, + WeekDay weekday, + WeekFlags flags) +{ + int year = GetYear(); + *this = ::SetToTheWeek(year, numWeek, weekday, flags); if ( GetYear() != year ) { // oops... numWeek was too big - return FALSE; + return false; } - return TRUE; + return true; +} + +wxDateTime wxDateTime::GetWeek(wxDateTime_t numWeek, + WeekDay weekday, + WeekFlags flags) const +{ + return ::SetToTheWeek(GetYear(), numWeek, weekday, flags); } +#endif // WXWIN_COMPATIBILITY_2_6 wxDateTime& wxDateTime::SetToLastMonthDay(Month month, int year) @@ -1477,29 +1953,49 @@ wxDateTime& wxDateTime::SetToLastMonthDay(Month month, return Set(GetNumOfDaysInMonth(year, month), month, year); } -wxDateTime& wxDateTime::SetToWeekDayInSameWeek(WeekDay weekday) +wxDateTime& wxDateTime::SetToWeekDayInSameWeek(WeekDay weekday, WeekFlags flags) { - wxCHECK_MSG( weekday != Inv_WeekDay, wxInvalidDateTime, _T("invalid weekday") ); + wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") ); - WeekDay wdayThis = GetWeekDay(); - if ( weekday == wdayThis ) + int wdayDst = weekday, + wdayThis = GetWeekDay(); + if ( wdayDst == wdayThis ) { // nothing to do return *this; } - else if ( weekday < wdayThis ) + + if ( flags == Default_First ) + { + flags = GetCountry() == USA ? Sunday_First : Monday_First; + } + + // the logic below based on comparing weekday and wdayThis works if Sun (0) + // is the first day in the week, but breaks down for Monday_First case so + // we adjust the week days in this case + if ( flags == Monday_First ) + { + if ( wdayThis == Sun ) + wdayThis += 7; + if ( wdayDst == Sun ) + wdayDst += 7; + } + //else: Sunday_First, nothing to do + + // go forward or back in time to the day we want + if ( wdayDst < wdayThis ) { - return Subtract(wxDateSpan::Days(wdayThis - weekday)); + return Subtract(wxDateSpan::Days(wdayThis - wdayDst)); } else // weekday > wdayThis { - return Add(wxDateSpan::Days(weekday - wdayThis)); + return Add(wxDateSpan::Days(wdayDst - wdayThis)); } } wxDateTime& wxDateTime::SetToNextWeekDay(WeekDay weekday) { - wxCHECK_MSG( weekday != Inv_WeekDay, wxInvalidDateTime, _T("invalid weekday") ); + wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") ); int diff; WeekDay wdayThis = GetWeekDay(); @@ -1523,7 +2019,7 @@ wxDateTime& wxDateTime::SetToNextWeekDay(WeekDay weekday) wxDateTime& wxDateTime::SetToPrevWeekDay(WeekDay weekday) { - wxCHECK_MSG( weekday != Inv_WeekDay, wxInvalidDateTime, _T("invalid weekday") ); + wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") ); int diff; WeekDay wdayThis = GetWeekDay(); @@ -1550,9 +2046,9 @@ bool wxDateTime::SetToWeekDay(WeekDay weekday, Month month, int year) { - wxCHECK_MSG( weekday != Inv_WeekDay, FALSE, _T("invalid weekday") ); + wxCHECK_MSG( weekday != Inv_WeekDay, false, _T("invalid weekday") ); - // we don't check explicitly that -5 <= n <= 5 because we will return FALSE + // we don't check explicitly that -5 <= n <= 5 because we will return false // anyhow in such case - but may be should still give an assert for it? // take the current month/year if none specified @@ -1604,52 +2100,87 @@ bool wxDateTime::SetToWeekDay(WeekDay weekday, { *this = dt; - return TRUE; + return true; } else { // no such day in this month - return FALSE; + return false; } } -wxDateTime::wxDateTime_t wxDateTime::GetDayOfYear(const TimeZone& tz) const +static inline +wxDateTime::wxDateTime_t GetDayOfYearFromTm(const wxDateTime::Tm& tm) { - Tm tm(GetTm(tz)); + return (wxDateTime::wxDateTime_t)(gs_cumulatedDays[wxDateTime::IsLeapYear(tm.year)][tm.mon] + tm.mday); +} - return gs_cumulatedDays[IsLeapYear(tm.year)][tm.mon] + tm.mday; +wxDateTime::wxDateTime_t wxDateTime::GetDayOfYear(const TimeZone& tz) const +{ + return GetDayOfYearFromTm(GetTm(tz)); } -wxDateTime::wxDateTime_t wxDateTime::GetWeekOfYear(wxDateTime::WeekFlags flags, - const TimeZone& tz) const +wxDateTime::wxDateTime_t +wxDateTime::GetWeekOfYear(wxDateTime::WeekFlags flags, const TimeZone& tz) const { if ( flags == Default_First ) { flags = GetCountry() == USA ? Sunday_First : Monday_First; } - wxDateTime_t nDayInYear = GetDayOfYear(tz); - wxDateTime_t week; + Tm tm(GetTm(tz)); + wxDateTime_t nDayInYear = GetDayOfYearFromTm(tm); - WeekDay wd = GetWeekDay(tz); + int wdTarget = GetWeekDay(tz); + int wdYearStart = wxDateTime(1, Jan, GetYear()).GetWeekDay(); + int week; if ( flags == Sunday_First ) { - week = (nDayInYear - wd + 7) / 7; + // FIXME: First week is not calculated correctly. + week = (nDayInYear - wdTarget + 7) / 7; + if ( wdYearStart == Wed || wdYearStart == Thu ) + week++; } - else + else // week starts with monday { - // have to shift the week days values - week = (nDayInYear - (wd - 1 + 7) % 7 + 7) / 7; - } + // adjust the weekdays to non-US style. + wdYearStart = ConvertWeekDayToMondayBase(wdYearStart); + wdTarget = ConvertWeekDayToMondayBase(wdTarget); - // FIXME some more elegant way?? - WeekDay wdYearStart = wxDateTime(1, Jan, GetYear()).GetWeekDay(); - if ( wdYearStart == Wed || wdYearStart == Thu ) - { - week++; + // quoting from http://www.cl.cam.ac.uk/~mgk25/iso-time.html: + // + // Week 01 of a year is per definition the first week that has the + // Thursday in this year, which is equivalent to the week that + // contains the fourth day of January. In other words, the first + // week of a new year is the week that has the majority of its + // days in the new year. Week 01 might also contain days from the + // previous year and the week before week 01 of a year is the last + // week (52 or 53) of the previous year even if it contains days + // from the new year. A week starts with Monday (day 1) and ends + // with Sunday (day 7). + // + + // if Jan 1 is Thursday or less, it is in the first week of this year + if ( wdYearStart < 4 ) + { + // count the number of entire weeks between Jan 1 and this date + week = (nDayInYear + wdYearStart + 6 - wdTarget)/7; + + // be careful to check for overflow in the next year + if ( week == 53 && tm.mday - wdTarget > 28 ) + week = 1; + } + else // Jan 1 is in the last week of the previous year + { + // check if we happen to be at the last week of previous year: + if ( tm.mon == Jan && tm.mday < 8 - wdYearStart ) + week = wxDateTime(31, Dec, GetYear()-1).GetWeekOfYear(); + else + week = (nDayInYear + wdYearStart - 1 - wdTarget)/7; + } } - return week; + return (wxDateTime::wxDateTime_t)week; } wxDateTime::wxDateTime_t wxDateTime::GetWeekOfMonth(wxDateTime::WeekFlags flags, @@ -1671,8 +2202,8 @@ wxDateTime::wxDateTime_t wxDateTime::GetWeekOfMonth(wxDateTime::WeekFlags flags, wxDateTime& wxDateTime::SetToYearDay(wxDateTime::wxDateTime_t yday) { int year = GetYear(); - wxCHECK_MSG( (0 < yday) && (yday <= GetNumberOfDays(year)), - wxInvalidDateTime, _T("invalid year day") ); + wxDATETIME_CHECK( (0 < yday) && (yday <= GetNumberOfDays(year)), + _T("invalid year day") ); bool isLeap = IsLeapYear(year); for ( Month mon = Jan; mon < Inv_Month; wxNextMonth(mon) ) @@ -1680,9 +2211,9 @@ wxDateTime& wxDateTime::SetToYearDay(wxDateTime::wxDateTime_t yday) // for Dec, we can't compare with gs_cumulatedDays[mon + 1], but we // don't need it neither - because of the CHECK above we know that // yday lies in December then - if ( (mon == Dec) || (yday < gs_cumulatedDays[isLeap][mon + 1]) ) + if ( (mon == Dec) || (yday <= gs_cumulatedDays[isLeap][mon + 1]) ) { - Set(yday - gs_cumulatedDays[isLeap][mon], mon, year); + Set((wxDateTime::wxDateTime_t)(yday - gs_cumulatedDays[isLeap][mon]), mon, year); break; } @@ -1697,16 +2228,7 @@ wxDateTime& wxDateTime::SetToYearDay(wxDateTime::wxDateTime_t yday) double wxDateTime::GetJulianDayNumber() const { - // JDN are always expressed for the GMT dates - Tm tm(ToTimezone(GMT0).GetTm(GMT0)); - - double result = GetTruncatedJDN(tm.mday, tm.mon, tm.year); - - // add the part GetTruncatedJDN() neglected - result += 0.5; - - // and now add the time: 86400 sec = 1 JDN - return result + ((double)(60*(60*tm.hour + tm.min) + tm.sec)) / 86400; + return m_time.ToDouble() / MILLISECONDS_PER_DAY + EPOCH_JDN + 0.5; } double wxDateTime::GetRataDie() const @@ -1728,9 +2250,10 @@ int wxDateTime::IsDST(wxDateTime::Country country) const time_t timet = GetTicks(); if ( timet != (time_t)-1 ) { - tm *tm = localtime(&timet); + struct tm tmstruct; + tm *tm = wxLocaltime_r(&timet, &tmstruct); - wxCHECK_MSG( tm, -1, _T("localtime() failed") ); + wxCHECK_MSG( tm, -1, _T("wxLocaltime_r() failed") ); return tm->tm_isdst; } @@ -1760,6 +2283,21 @@ wxDateTime& wxDateTime::MakeTimezone(const TimeZone& tz, bool noDST) secDiff -= 3600; } + return Add(wxTimeSpan::Seconds(secDiff)); +} + +wxDateTime& wxDateTime::MakeFromTimezone(const TimeZone& tz, bool noDST) +{ + long secDiff = GetTimeZone() + tz.GetOffset(); + + // we need to know whether DST is or not in effect for this date unless + // the test disabled by the caller + if ( !noDST && (IsDST() == 1) ) + { + // FIXME we assume that the DST is always shifted by 1 hour + secDiff -= 3600; + } + return Subtract(wxTimeSpan::Seconds(secDiff)); } @@ -1767,40 +2305,44 @@ wxDateTime& wxDateTime::MakeTimezone(const TimeZone& tz, bool noDST) // wxDateTime to/from text representations // ---------------------------------------------------------------------------- -wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const +wxString wxDateTime::Format(const wxString& format, const TimeZone& tz) const { - wxCHECK_MSG( format, _T(""), _T("NULL format in wxDateTime::Format") ); + wxCHECK_MSG( !format.empty(), wxEmptyString, + _T("NULL format in wxDateTime::Format") ); // we have to use our own implementation if the date is out of range of // strftime() or if we use non standard specificators +#ifdef HAVE_STRFTIME time_t time = GetTicks(); + if ( (time != (time_t)-1) && !wxStrstr(format, _T("%l")) ) { // use strftime() - tm *tm; + struct tm tmstruct; + struct tm *tm; if ( tz.GetOffset() == -GetTimeZone() ) { // we are working with local time - tm = localtime(&time); + tm = wxLocaltime_r(&time, &tmstruct); // should never happen - wxCHECK_MSG( tm, wxEmptyString, _T("localtime() failed") ); + wxCHECK_MSG( tm, wxEmptyString, _T("wxLocaltime_r() failed") ); } else { time += (int)tz.GetOffset(); -#ifdef __VMS__ // time is unsigned so avoid the warning +#if defined(__VMS__) || defined(__WATCOMC__) // time is unsigned so avoid warning int time2 = (int) time; if ( time2 >= 0 ) #else if ( time >= 0 ) #endif { - tm = gmtime(&time); + tm = wxGmtime_r(&time, &tmstruct); // should never happen - wxCHECK_MSG( tm, wxEmptyString, _T("gmtime() failed") ); + wxCHECK_MSG( tm, wxEmptyString, _T("wxGmtime_r() failed") ); } else { @@ -1812,8 +2354,9 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const { return CallStrftime(format, tm); } - //else: use generic code below } + //else: use generic code below +#endif // HAVE_STRFTIME // we only parse ANSI C format specifications here, no POSIX 2 // complications, no GNU extensions but we do add support for a "%l" format @@ -1833,7 +2376,7 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const tmTimeOnly.tm_isdst = 0; // no DST, we adjust for tz ourselves wxString tmp, res, fmt; - for ( const wxChar *p = format; *p; p++ ) + for ( wxString::const_iterator p = format.begin(); p != format.end(); ++p ) { if ( *p != _T('%') ) { @@ -1844,7 +2387,7 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const } // set the default format - switch ( *++p ) + switch ( (*++p).GetValue() ) { case _T('Y'): // year has 4 digits fmt = _T("%04d"); @@ -1855,6 +2398,10 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const fmt = _T("%03d"); break; + case _T('w'): // week day as number has only one + fmt = _T("%d"); + break; + default: // it's either another valid format specifier in which case // the format is "%02d" (for all the rest) or we have the @@ -1863,17 +2410,17 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const fmt = _T("%02d"); } - bool restart = TRUE; + bool restart = true; while ( restart ) { - restart = FALSE; + restart = false; // start of the format specification - switch ( *p ) + switch ( (*p).GetValue() ) { case _T('a'): // a weekday name case _T('A'): - // second parameter should be TRUE for abbreviated names + // second parameter should be true for abbreviated names res += GetWeekDayName(tm.GetWeekDay(), *p == _T('a') ? Name_Abbr : Name_Full); break; @@ -1886,6 +2433,7 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const case _T('c'): // locale default date and time representation case _T('x'): // locale default date representation +#ifdef HAVE_STRFTIME // // the problem: there is no way to know what do these format // specifications correspond to for the current locale. @@ -1894,12 +2442,12 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const // find the YEAR which is a year in the strftime() range (1970 // - 2038) whose Jan 1 falls on the same week day as the Jan 1 // of the real year. Then make a copy of the format and - // replace all occurences of YEAR in it with some unique + // replace all occurrences of YEAR in it with some unique // string not appearing anywhere else in it, then use // strftime() to format the date in year YEAR and then replace // YEAR back by the real year and the unique replacement - // string back with YEAR. Notice that "all occurences of YEAR" - // means all occurences of 4 digit as well as 2 digit form! + // string back with YEAR. Notice that "all occurrences of YEAR" + // means all occurrences of 4 digit as well as 2 digit form! // // the bugs: we assume that neither of %c nor %x contains any // fields which may change between the YEAR and real year. For @@ -1907,7 +2455,7 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const // will change if one of these years is leap and the other one // is not! { - // find the YEAR: normally, for any year X, Jan 1 or the + // find the YEAR: normally, for any year X, Jan 1 of the // year X + 28 is the same weekday as Jan 1 of X (because // the weekday advances by 1 for each normal X and by 2 // for each leap X, hence by 5 every 4 years or by 35 @@ -1949,33 +2497,15 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const nLostWeekDays += year++ % 4 ? 1 : 2; } - // at any rate, we couldn't go further than 1988 + 9 + 28! - wxASSERT_MSG( year < 2030, - _T("logic error in wxDateTime::Format") ); - - wxString strYear, strYear2; - strYear.Printf(_T("%d"), year); - strYear2.Printf(_T("%d"), year % 100); - - // find two strings not occuring in format (this is surely - // not optimal way of doing it... improvements welcome!) - wxString fmt = format; - wxString replacement = (wxChar)-1; - while ( fmt.Find(replacement) != wxNOT_FOUND ) - { - replacement << (wxChar)-1; - } + // finally move the year below 2000 so that the 2-digit + // year number can never match the month or day of the + // month when we do the replacements below + if ( year >= 2000 ) + year -= 28; - wxString replacement2 = (wxChar)-2; - while ( fmt.Find(replacement) != wxNOT_FOUND ) - { - replacement << (wxChar)-2; - } + wxASSERT_MSG( year >= 1970 && year < 2000, + _T("logic error in wxDateTime::Format") ); - // replace all occurences of year with it - bool wasReplaced = fmt.Replace(strYear, replacement) > 0; - if ( !wasReplaced ) - wasReplaced = fmt.Replace(strYear2, replacement2) > 0; // use strftime() to format the same date but in supported // year @@ -1999,22 +2529,31 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const : _T("%x"), &tmAdjusted); - // now replace the occurence of 1999 with the real year - wxString strYearReal, strYearReal2; - strYearReal.Printf(_T("%04d"), yearReal); - strYearReal2.Printf(_T("%02d"), yearReal % 100); - str.Replace(strYear, strYearReal); - str.Replace(strYear2, strYearReal2); - - // and replace back all occurences of replacement string - if ( wasReplaced ) - { - str.Replace(replacement2, strYear2); - str.Replace(replacement, strYear); - } + // now replace the replacement year with the real year: + // notice that we have to replace the 4 digit year with + // a unique string not appearing in strftime() output + // first to prevent the 2 digit year from matching any + // substring of the 4 digit year (but any day, month, + // hours or minutes components should be safe because + // they are never in 70-99 range) + wxString replacement("|"); + while ( str.find(replacement) != wxString::npos ) + replacement += '|'; + + str.Replace(wxString::Format("%d", year), + replacement); + str.Replace(wxString::Format("%d", year % 100), + wxString::Format("%d", yearReal % 100)); + str.Replace(replacement, + wxString::Format("%d", yearReal)); res += str; } +#else // !HAVE_STRFTIME + // Use "%m/%d/%y %H:%M:%S" format instead + res += wxString::Format(wxT("%02d/%02d/%04d %02d:%02d:%02d"), + tm.mon+1,tm.mday, tm.year, tm.hour, tm.min, tm.sec); +#endif // HAVE_STRFTIME/!HAVE_STRFTIME break; case _T('d'): // day of a month (01-31) @@ -2051,7 +2590,11 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const break; case _T('p'): // AM or PM string +#ifdef HAVE_STRFTIME res += CallStrftime(_T("%p"), &tmTimeOnly); +#else // !HAVE_STRFTIME + res += (tmTimeOnly.tm_hour > 12) ? wxT("pm") : wxT("am"); +#endif // HAVE_STRFTIME/!HAVE_STRFTIME break; case _T('S'): // second as a decimal number (00-61) @@ -2074,7 +2617,11 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const case _T('X'): // locale default time representation // just use strftime() to format the time for us +#ifdef HAVE_STRFTIME res += CallStrftime(_T("%X"), &tmTimeOnly); +#else // !HAVE_STRFTIME + res += wxString::Format(wxT("%02d:%02d:%02d"),tm.hour, tm.min, tm.sec); +#endif // HAVE_STRFTIME/!HAVE_STRFTIME break; case _T('y'): // year without century (00-99) @@ -2086,7 +2633,9 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const break; case _T('Z'): // timezone name +#ifdef HAVE_STRFTIME res += CallStrftime(_T("%Z"), &tmTimeOnly); +#endif break; default: @@ -2098,13 +2647,13 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const fmt += *p; } - if ( !fmt.IsEmpty() ) + if ( !fmt.empty() ) { // we've only got the flags and width so far in fmt fmt.Prepend(_T('%')); fmt.Append(_T('d')); - restart = TRUE; + restart = true; break; } @@ -2139,12 +2688,12 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const // RFC822 time specs. // // TODO a great candidate for using reg exps -const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date) +const char * +wxDateTime::ParseRfc822Date(const wxString& date, wxString::const_iterator *end) { - wxCHECK_MSG( date, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") ); - - const wxChar *p = date; - const wxChar *comma = wxStrchr(p, _T(',')); + // TODO: rewrite using iterators instead of wxChar pointers + const wxStringCharType *p = date.wx_str(); + const wxStringCharType *comma = wxStrchr(p, wxS(',')); if ( comma ) { // the part before comma is the weekday @@ -2157,7 +2706,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date) { wxLogDebug(_T("no space after weekday in RFC822 time spec")); - return (wxChar *)NULL; + return NULL; } p++; // skip space @@ -2168,19 +2717,19 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date) { wxLogDebug(_T("day number expected in RFC822 time spec, none found")); - return (wxChar *)NULL; + return NULL; } - wxDateTime_t day = *p++ - _T('0'); + wxDateTime_t day = (wxDateTime_t)(*p++ - _T('0')); if ( wxIsdigit(*p) ) { day *= 10; - day += *p++ - _T('0'); + day = (wxDateTime_t)(day + (*p++ - _T('0'))); } if ( *p++ != _T(' ') ) { - return (wxChar *)NULL; + return NULL; } // the following 3 letters specify the month @@ -2214,21 +2763,21 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date) { wxLogDebug(_T("Invalid RFC 822 month name '%s'"), monName.c_str()); - return (wxChar *)NULL; + return NULL; } p += 3; if ( *p++ != _T(' ') ) { - return (wxChar *)NULL; + return NULL; } // next is the year if ( !wxIsdigit(*p) ) { // no year? - return (wxChar *)NULL; + return NULL; } int year = *p++ - _T('0'); @@ -2236,7 +2785,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date) if ( !wxIsdigit(*p) ) { // should have at least 2 digits in the year - return (wxChar *)NULL; + return NULL; } year *= 10; @@ -2251,7 +2800,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date) if ( !wxIsdigit(*p) ) { // no 3 digit years please - return (wxChar *)NULL; + return NULL; } year *= 10; @@ -2260,71 +2809,72 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date) if ( *p++ != _T(' ') ) { - return (wxChar *)NULL; + return NULL; } // time is in the format hh:mm:ss and seconds are optional if ( !wxIsdigit(*p) ) { - return (wxChar *)NULL; + return NULL; } - wxDateTime_t hour = *p++ - _T('0'); + wxDateTime_t hour = (wxDateTime_t)(*p++ - _T('0')); if ( !wxIsdigit(*p) ) { - return (wxChar *)NULL; + return NULL; } hour *= 10; - hour += *p++ - _T('0'); + hour = (wxDateTime_t)(hour + (*p++ - _T('0'))); if ( *p++ != _T(':') ) { - return (wxChar *)NULL; + return NULL; } if ( !wxIsdigit(*p) ) { - return (wxChar *)NULL; + return NULL; } - wxDateTime_t min = *p++ - _T('0'); + wxDateTime_t min = (wxDateTime_t)(*p++ - _T('0')); if ( !wxIsdigit(*p) ) { - return (wxChar *)NULL; + return NULL; } min *= 10; - min += *p++ - _T('0'); + min = (wxDateTime_t)(min + *p++ - _T('0')); wxDateTime_t sec = 0; - if ( *p++ == _T(':') ) + if ( *p == _T(':') ) { + p++; if ( !wxIsdigit(*p) ) { - return (wxChar *)NULL; + return NULL; } - sec = *p++ - _T('0'); + sec = (wxDateTime_t)(*p++ - _T('0')); if ( !wxIsdigit(*p) ) { - return (wxChar *)NULL; + return NULL; } sec *= 10; - sec += *p++ - _T('0'); + sec = (wxDateTime_t)(sec + *p++ - _T('0')); } if ( *p++ != _T(' ') ) { - return (wxChar *)NULL; + return NULL; } // and now the interesting part: the timezone - int offset; + int offset wxDUMMY_INITIALIZE(0); if ( *p == _T('-') || *p == _T('+') ) { // the explicit offset given: it has the form of hhmm @@ -2332,17 +2882,17 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date) if ( !wxIsdigit(*p) || !wxIsdigit(*(p + 1)) ) { - return (wxChar *)NULL; + return NULL; } // hours - offset = 60*(10*(*p - _T('0')) + (*(p + 1) - _T('0'))); + offset = MIN_PER_HOUR*(10*(*p - _T('0')) + (*(p + 1) - _T('0'))); p += 2; if ( !wxIsdigit(*p) || !wxIsdigit(*(p + 1)) ) { - return (wxChar *)NULL; + return NULL; } // minutes @@ -2374,7 +2924,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date) { wxLogDebug(_T("Invalid militaty timezone '%c'"), *p); - return (wxChar *)NULL; + return NULL; } offset = offsets[*p++ - _T('A')]; @@ -2409,45 +2959,210 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date) { wxLogDebug(_T("Unknown RFC 822 timezone '%s'"), p); - return (wxChar *)NULL; + return NULL; } p += tz.length(); } // make it minutes - offset *= 60; + offset *= MIN_PER_HOUR; } - // the spec was correct + // the spec was correct, construct the date from the values we found Set(day, mon, year, hour, min, sec); - MakeTimezone((wxDateTime_t)(60*offset)); + MakeFromTimezone(TimeZone::Make(offset*SEC_PER_MIN)); + + const size_t endpos = p - date.wx_str(); + if ( end ) + *end = date.begin() + endpos; + + return date.c_str() + endpos; +} + +#ifdef __WINDOWS__ + +// returns the string containing strftime() format used for short dates in the +// current locale or an empty string +static wxString GetLocaleDateFormat() +{ + wxString fmtWX; + + // there is no setlocale() under Windows CE, so just always query the + // system there +#ifndef __WXWINCE__ + if ( strcmp(setlocale(LC_ALL, NULL), "C") != 0 ) +#endif + { + // The locale was programatically set to non-C. We assume that this was + // done using wxLocale, in which case thread's current locale is also + // set to correct LCID value and we can use GetLocaleInfo to determine + // the correct formatting string: +#ifdef __WXWINCE__ + LCID lcid = LOCALE_USER_DEFAULT; +#else + LCID lcid = GetThreadLocale(); +#endif + // according to MSDN 80 chars is max allowed for short date format + wxChar fmt[81]; + if ( ::GetLocaleInfo(lcid, LOCALE_SSHORTDATE, fmt, WXSIZEOF(fmt)) ) + { + wxChar chLast = _T('\0'); + size_t lastCount = 0; + for ( const wxChar *p = fmt; /* NUL handled inside */; p++ ) + { + if ( *p == chLast ) + { + lastCount++; + continue; + } - return p; + switch ( *p ) + { + // these characters come in groups, start counting them + case _T('d'): + case _T('M'): + case _T('y'): + case _T('g'): + chLast = *p; + lastCount = 1; + break; + + default: + // first deal with any special characters we have had + if ( lastCount ) + { + switch ( chLast ) + { + case _T('d'): + switch ( lastCount ) + { + case 1: // d + case 2: // dd + // these two are the same as we + // don't distinguish between 1 and + // 2 digits for days + fmtWX += _T("%d"); + break; + + case 3: // ddd + fmtWX += _T("%a"); + break; + + case 4: // dddd + fmtWX += _T("%A"); + break; + + default: + wxFAIL_MSG( _T("too many 'd's") ); + } + break; + + case _T('M'): + switch ( lastCount ) + { + case 1: // M + case 2: // MM + // as for 'd' and 'dd' above + fmtWX += _T("%m"); + break; + + case 3: + fmtWX += _T("%b"); + break; + + case 4: + fmtWX += _T("%B"); + break; + + default: + wxFAIL_MSG( _T("too many 'M's") ); + } + break; + + case _T('y'): + switch ( lastCount ) + { + case 1: // y + case 2: // yy + fmtWX += _T("%y"); + break; + + case 4: // yyyy + fmtWX += _T("%Y"); + break; + + default: + wxFAIL_MSG( _T("wrong number of 'y's") ); + } + break; + + case _T('g'): + // strftime() doesn't have era string, + // ignore this format + wxASSERT_MSG( lastCount <= 2, + _T("too many 'g's") ); + break; + + default: + wxFAIL_MSG( _T("unreachable") ); + } + + chLast = _T('\0'); + lastCount = 0; + } + + // not a special character so must be just a separator, + // treat as is + if ( *p != _T('\0') ) + { + if ( *p == _T('%') ) + { + // this one needs to be escaped + fmtWX += _T('%'); + } + + fmtWX += *p; + } + } + + if ( *p == _T('\0') ) + break; + } + } + //else: GetLocaleInfo() failed, leave fmtDate value unchanged and + // try our luck with the default formats + } + //else: default C locale, default formats should work + + return fmtWX; } -const wxChar *wxDateTime::ParseFormat(const wxChar *date, - const wxChar *format, - const wxDateTime& dateDef) +#endif // __WINDOWS__ + +const char * +wxDateTime::ParseFormat(const wxString& date, + const wxString& format, + const wxDateTime& dateDef, + wxString::const_iterator *end) { - wxCHECK_MSG( date && format, (wxChar *)NULL, - _T("NULL pointer in wxDateTime::ParseFormat()") ); + wxCHECK_MSG( !format.empty(), NULL, "format can't be empty" ); wxString str; unsigned long num; // what fields have we found? - bool haveWDay = FALSE, - haveYDay = FALSE, - haveDay = FALSE, - haveMon = FALSE, - haveYear = FALSE, - haveHour = FALSE, - haveMin = FALSE, - haveSec = FALSE; - - bool hourIsIn12hFormat = FALSE, // or in 24h one? - isPM = FALSE; // AM by default + bool haveWDay = false, + haveYDay = false, + haveDay = false, + haveMon = false, + haveYear = false, + haveHour = false, + haveMin = false, + haveSec = false; + + bool hourIsIn12hFormat = false, // or in 24h one? + isPM = false; // AM by default // and the value of the items we have (init them to get rid of warnings) wxDateTime_t sec = 0, @@ -2459,8 +3174,8 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, wxDateTime::Month mon = Inv_Month; int year = 0; - const wxChar *input = date; - for ( const wxChar *fmt = format; *fmt; fmt++ ) + const wxStringCharType *input = date.wx_str(); + for ( wxString::const_iterator fmt = format.begin(); fmt != format.end(); ++fmt ) { if ( *fmt != _T('%') ) { @@ -2480,7 +3195,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, if ( *input++ != *fmt ) { // no match - return (wxChar *)NULL; + return NULL; } } @@ -2492,14 +3207,38 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, // parse the optional width size_t width = 0; - while ( isdigit(*++fmt) ) + while ( wxIsdigit(*++fmt) ) { width *= 10; width += *fmt - _T('0'); } + // the default widths for the various fields + if ( !width ) + { + switch ( (*fmt).GetValue() ) + { + case _T('Y'): // year has 4 digits + width = 4; + break; + + case _T('j'): // day of year has 3 digits + case _T('l'): // milliseconds have 3 digits + width = 3; + break; + + case _T('w'): // week day as number has only one + width = 1; + break; + + default: + // default for all other fields + width = 2; + } + } + // then the format itself - switch ( *fmt ) + switch ( (*fmt).GetValue() ) { case _T('a'): // a weekday name case _T('A'): @@ -2509,10 +3248,10 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, if ( wday == Inv_WeekDay ) { // no match - return (wxChar *)NULL; + return NULL; } } - haveWDay = TRUE; + haveWDay = true; break; case _T('b'): // a month name @@ -2523,41 +3262,32 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, if ( mon == Inv_Month ) { // no match - return (wxChar *)NULL; + return NULL; } } - haveMon = TRUE; + haveMon = true; break; case _T('c'): // locale default date and time representation { wxDateTime dt; - // this is the format which corresponds to ctime() output - // and strptime("%c") should parse it, so try it first - static const wxChar *fmtCtime = _T("%a %b %d %H:%M:%S %Y"); + const wxString inc(input); - const wxChar *result = dt.ParseFormat(input, fmtCtime); - if ( !result ) - { - result = dt.ParseFormat(input, _T("%x %X")); - } - - if ( !result ) - { - result = dt.ParseFormat(input, _T("%X %x")); - } - - if ( !result ) + // try the format which corresponds to ctime() output first + wxString::const_iterator endc; + if ( !dt.ParseFormat(inc, wxS("%a %b %d %H:%M:%S %Y"), &endc) && + !dt.ParseFormat(inc, wxS("%x %X"), &endc) && + !dt.ParseFormat(inc, wxS("%X %x"), &endc) ) { // we've tried everything and still no match - return (wxChar *)NULL; + return NULL; } Tm tm = dt.GetTm(); haveDay = haveMon = haveYear = - haveHour = haveMin = haveSec = TRUE; + haveHour = haveMin = haveSec = true; hour = tm.hour; min = tm.min; @@ -2567,7 +3297,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, mon = tm.mon; mday = tm.mday; - input = result; + input += endc - inc.begin(); } break; @@ -2576,12 +3306,12 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, (num > 31) || (num < 1) ) { // no match - return (wxChar *)NULL; + return NULL; } // we can't check whether the day range is correct yet, will // do it later - assume ok for now - haveDay = TRUE; + haveDay = true; mday = (wxDateTime_t)num; break; @@ -2589,10 +3319,10 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, if ( !GetNumericToken(width, input, &num) || (num > 23) ) { // no match - return (wxChar *)NULL; + return NULL; } - haveHour = TRUE; + haveHour = true; hour = (wxDateTime_t)num; break; @@ -2600,11 +3330,11 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, if ( !GetNumericToken(width, input, &num) || !num || (num > 12) ) { // no match - return (wxChar *)NULL; + return NULL; } - haveHour = TRUE; - hourIsIn12hFormat = TRUE; + haveHour = true; + hourIsIn12hFormat = true; hour = (wxDateTime_t)(num % 12); // 12 should be 0 break; @@ -2612,10 +3342,10 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, if ( !GetNumericToken(width, input, &num) || !num || (num > 366) ) { // no match - return (wxChar *)NULL; + return NULL; } - haveYDay = TRUE; + haveYDay = true; yday = (wxDateTime_t)num; break; @@ -2623,10 +3353,10 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, if ( !GetNumericToken(width, input, &num) || !num || (num > 12) ) { // no match - return (wxChar *)NULL; + return NULL; } - haveMon = TRUE; + haveMon = true; mon = (Month)(num - 1); break; @@ -2634,10 +3364,10 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, if ( !GetNumericToken(width, input, &num) || (num > 59) ) { // no match - return (wxChar *)NULL; + return NULL; } - haveMin = TRUE; + haveMin = true; min = (wxDateTime_t)num; break; @@ -2646,14 +3376,16 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, wxString am, pm, token = GetAlphaToken(input); GetAmPmStrings(&am, &pm); + if (am.empty() && pm.empty()) + return NULL; // no am/pm strings defined if ( token.CmpNoCase(pm) == 0 ) { - isPM = TRUE; + isPM = true; } else if ( token.CmpNoCase(am) != 0 ) { // no match - return (wxChar *)NULL; + return NULL; } } break; @@ -2661,14 +3393,14 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, case _T('r'): // time as %I:%M:%S %p { wxDateTime dt; - input = dt.ParseFormat(input, _T("%I:%M:%S %p")); + input = dt.ParseFormat(input, wxS("%I:%M:%S %p")); if ( !input ) { // no match - return (wxChar *)NULL; + return NULL; } - haveHour = haveMin = haveSec = TRUE; + haveHour = haveMin = haveSec = true; Tm tm = dt.GetTm(); hour = tm.hour; @@ -2680,28 +3412,29 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, case _T('R'): // time as %H:%M { wxDateTime dt; - input = dt.ParseFormat(input, _T("%H:%M")); + input = dt.ParseFormat(input, wxS("%H:%M")); if ( !input ) { // no match - return (wxChar *)NULL; + return NULL; } - haveHour = haveMin = TRUE; + haveHour = haveMin = true; Tm tm = dt.GetTm(); hour = tm.hour; min = tm.min; } + break; case _T('S'): // second as a decimal number (00-61) if ( !GetNumericToken(width, input, &num) || (num > 61) ) { // no match - return (wxChar *)NULL; + return NULL; } - haveSec = TRUE; + haveSec = true; sec = (wxDateTime_t)num; break; @@ -2712,10 +3445,10 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, if ( !input ) { // no match - return (wxChar *)NULL; + return NULL; } - haveHour = haveMin = haveSec = TRUE; + haveHour = haveMin = haveSec = true; Tm tm = dt.GetTm(); hour = tm.hour; @@ -2728,26 +3461,28 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, if ( !GetNumericToken(width, input, &num) || (wday > 6) ) { // no match - return (wxChar *)NULL; + return NULL; } - haveWDay = TRUE; + haveWDay = true; wday = (WeekDay)num; break; case _T('x'): // locale default date representation #ifdef HAVE_STRPTIME - // try using strptime() - it may fail even if the input is + // try using strptime() -- it may fail even if the input is // correct but the date is out of range, so we will fall back - // to our generic code anyhow (FIXME !Unicode friendly) + // to our generic code anyhow { struct tm tm; - const wxChar *result = strptime(input, "%x", &tm); + + const wxStringCharType * + result = CallStrptime(input, "%x", &tm); if ( result ) { input = result; - haveDay = haveMon = haveYear = TRUE; + haveDay = haveMon = haveYear = true; year = 1900 + tm.tm_year; mon = (Month)tm.tm_mon; @@ -2758,46 +3493,54 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, } #endif // HAVE_STRPTIME - // TODO query the LOCALE_IDATE setting under Win32 { wxDateTime dt; - - wxString fmtDate, fmtDateAlt; - if ( IsWestEuropeanCountry(GetCountry()) || - GetCountry() == Russia ) - { - fmtDate = _T("%d/%m/%y"); - fmtDateAlt = _T("%m/%d/%y"); - } - else // assume USA - { - fmtDate = _T("%m/%d/%y"); - fmtDateAlt = _T("%d/%m/%y"); - } - - const wxChar *result = dt.ParseFormat(input, fmtDate); - - if ( !result ) + wxString fmtDate, + fmtDateAlt; + +#ifdef __WINDOWS__ + // The above doesn't work for all locales, try to query + // Windows for the right way of formatting the date: + fmtDate = GetLocaleDateFormat(); + if ( fmtDate.empty() ) +#endif // __WINDOWS__ { - // ok, be nice and try another one - result = dt.ParseFormat(input, fmtDateAlt); + if ( IsWestEuropeanCountry(GetCountry()) || + GetCountry() == Russia ) + { + fmtDate = _T("%d/%m/%y"); + fmtDateAlt = _T("%m/%d/%y"); + } + else // assume USA + { + fmtDate = _T("%m/%d/%y"); + fmtDateAlt = _T("%d/%m/%y"); + } } - if ( !result ) + const wxString indate(input); + wxString::const_iterator endDate; + if ( !dt.ParseFormat(indate, fmtDate, &endDate) ) { - // bad luck - return (wxChar *)NULL; + // try another one if we have it + if ( fmtDateAlt.empty() || + !dt.ParseFormat(indate, fmtDateAlt, &endDate) ) + { + return NULL; + } } Tm tm = dt.GetTm(); - haveDay = haveMon = haveYear = TRUE; + haveDay = + haveMon = + haveYear = true; year = tm.year; mon = tm.mon; mday = tm.mday; - input = result; + input += endDate - indate.begin(); } break; @@ -2807,13 +3550,13 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, { // use strptime() to do it for us (FIXME !Unicode friendly) struct tm tm; - input = strptime(input, "%X", &tm); + input = CallStrptime(input, "%X", &tm); if ( !input ) { - return (wxChar *)NULL; + return NULL; } - haveHour = haveMin = haveSec = TRUE; + haveHour = haveMin = haveSec = true; hour = tm.tm_hour; min = tm.tm_min; @@ -2829,19 +3572,22 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, // common cases wxDateTime dt; - const wxChar *result = dt.ParseFormat(input, _T("%T")); + const wxStringCharType * + result = dt.ParseFormat(input, wxS("%T")); if ( !result ) { - result = dt.ParseFormat(input, _T("%r")); + result = dt.ParseFormat(input, wxS("%r")); } if ( !result ) { // no match - return (wxChar *)NULL; + return NULL; } - haveHour = haveMin = haveSec = TRUE; + haveHour = + haveMin = + haveSec = true; Tm tm = dt.GetTm(); hour = tm.hour; @@ -2857,10 +3603,10 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, if ( !GetNumericToken(width, input, &num) || (num > 99) ) { // no match - return (wxChar *)NULL; + return NULL; } - haveYear = TRUE; + haveYear = true; // TODO should have an option for roll over date instead of // hard coding it here @@ -2871,10 +3617,10 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, if ( !GetNumericToken(width, input, &num) ) { // no match - return (wxChar *)NULL; + return NULL; } - haveYear = TRUE; + haveYear = true; year = (wxDateTime_t)num; break; @@ -2886,7 +3632,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, if ( *input++ != _T('%') ) { // no match - return (wxChar *)NULL; + return NULL; } break; @@ -2896,7 +3642,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, // fall through default: // not a known format spec - return (wxChar *)NULL; + return NULL; } } @@ -2907,11 +3653,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, // take this date as default tmDef = dateDef.GetTm(); } -#ifdef __WIN16__ - else if ( m_time != 0 ) -#else - else if ( m_time != wxLongLong(0) ) -#endif + else if ( IsValid() ) { // if this date is valid, don't change it tmDef = GetTm(); @@ -2925,6 +3667,11 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, Tm tm = tmDef; // set the date + if ( haveMon ) + { + tm.mon = mon; + } + if ( haveYear ) { tm.year = year; @@ -2933,16 +3680,15 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, // TODO we don't check here that the values are consistent, if both year // day and month/day were found, we just ignore the year day and we // also always ignore the week day - if ( haveMon && haveDay ) + if ( haveDay ) { - if ( mday > GetNumOfDaysInMonth(tm.year, mon) ) + if ( mday > GetNumOfDaysInMonth(tm.year, tm.mon) ) { wxLogDebug(_T("bad month day in wxDateTime::ParseFormat")); - return (wxChar *)NULL; + return NULL; } - tm.mon = mon; tm.mday = mday; } else if ( haveYDay ) @@ -2951,7 +3697,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, { wxLogDebug(_T("bad year day in wxDateTime::ParseFormat")); - return (wxChar *)NULL; + return NULL; } Tm tm2 = wxDateTime(1, Jan, tm.year).SetToYearDay(yday).GetTm(); @@ -2986,36 +3732,90 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, Set(tm); - return input; + // finally check that the week day is consistent -- if we had it + if ( haveWDay && GetWeekDay() != wday ) + { + wxLogDebug(_T("inconsistsnet week day in wxDateTime::ParseFormat()")); + + return NULL; + } + + const size_t endpos = input - date.wx_str(); + if ( end ) + *end = date.begin() + endpos; + + return date.c_str() + endpos; } -const wxChar *wxDateTime::ParseDateTime(const wxChar *date) +const char * +wxDateTime::ParseDateTime(const wxString& date, wxString::const_iterator *end) { - wxCHECK_MSG( date, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") ); + // Set to current day and hour, so strings like '14:00' becomes today at + // 14, not some other random date + wxDateTime dtDate = wxDateTime::Today(); + wxDateTime dtTime = wxDateTime::Today(); + + wxString::const_iterator + endTime, + endDate, + endBoth; + + // If we got a date in the beginning, see if there is a time specified + // after the date + if ( dtDate.ParseDate(date, &endDate) ) + { + // Skip spaces, as the ParseTime() function fails on spaces + while ( endDate != date.end() && wxIsspace(*endDate) ) + ++endDate; + + const wxString timestr(endDate, date.end()); + if ( !dtTime.ParseTime(timestr, &endTime) ) + return NULL; + + endBoth = endDate + (endTime - timestr.begin()); + } + else // no date in the beginning + { + // check if we have a time followed by a date + if ( !dtTime.ParseTime(date, &endTime) ) + return NULL; + + while ( endTime != date.end() && wxIsspace(*endTime) ) + ++endTime; - // there is a public domain version of getdate.y, but it only works for - // English... - wxFAIL_MSG(_T("TODO")); + const wxString datestr(endTime, date.end()); + if ( !dtDate.ParseDate(datestr, &endDate) ) + return NULL; + + endBoth = endTime + (endDate - datestr.begin()); + } - return (wxChar *)NULL; + Set(dtDate.GetDay(), dtDate.GetMonth(), dtDate.GetYear(), + dtTime.GetHour(), dtTime.GetMinute(), dtTime.GetSecond(), + dtTime.GetMillisecond()); + + // Return endpoint of scan + if ( end ) + *end = endBoth; + + return date.c_str() + (endBoth - date.begin()); } -const wxChar *wxDateTime::ParseDate(const wxChar *date) +const char * +wxDateTime::ParseDate(const wxString& date, wxString::const_iterator *end) { // this is a simplified version of ParseDateTime() which understands only // "today" (for wxDate compatibility) and digits only otherwise (and not // all esoteric constructions ParseDateTime() knows about) - wxCHECK_MSG( date, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") ); - - const wxChar *p = date; + const wxStringCharType *p = date.wx_str(); while ( wxIsspace(*p) ) p++; // some special cases static struct { - const wxChar *str; + const char *str; int dayDiffFromToday; } literalDates[] = { @@ -3026,21 +3826,29 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) for ( size_t n = 0; n < WXSIZEOF(literalDates); n++ ) { - wxString date = wxGetTranslation(literalDates[n].str); - size_t len = date.length(); - if ( wxStrlen(p) >= len && (wxString(p, len).CmpNoCase(date) == 0) ) + const wxString dateStr = wxGetTranslation(literalDates[n].str); + size_t len = dateStr.length(); + if ( wxStrlen(p) >= len ) { - // nothing can follow this, so stop here - p += len; - - int dayDiffFromToday = literalDates[n].dayDiffFromToday; - *this = Today(); - if ( dayDiffFromToday ) + wxString str(p, len); + if ( str.CmpNoCase(dateStr) == 0 ) { - *this += wxDateSpan::Days(dayDiffFromToday); - } + // nothing can follow this, so stop here + p += len; + + int dayDiffFromToday = literalDates[n].dayDiffFromToday; + *this = Today(); + if ( dayDiffFromToday ) + { + *this += wxDateSpan::Days(dayDiffFromToday); + } - return p; + const size_t endpos = p - date.wx_str(); + + if ( end ) + *end = date.begin() + endpos; + return date.c_str() + endpos; + } } } @@ -3050,10 +3858,10 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) // have the ability to back track. // what do we have? - bool haveDay = FALSE, // the months day? - haveWDay = FALSE, // the day of week? - haveMon = FALSE, // the month? - haveYear = FALSE; // the year? + bool haveDay = false, // the months day? + haveWDay = false, // the day of week? + haveMon = false, // the month? + haveYear = false; // the year? // and the value of the items we have (init them to get rid of warnings) WeekDay wday = Inv_WeekDay; @@ -3063,7 +3871,7 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) // tokenize the string size_t nPosCur = 0; - static const wxChar *dateDelimiters = _T(".,/-\t\n "); + static const wxStringCharType *dateDelimiters = wxS(".,/-\t\r\n "); wxStringTokenizer tok(p, dateDelimiters); while ( tok.HasMoreTokens() ) { @@ -3077,29 +3885,42 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) { // guess what this number is - bool isDay = FALSE, - isMonth = FALSE, - isYear = FALSE; + bool isDay = false, + isMonth = false, + isYear = false; if ( !haveMon && val > 0 && val <= 12 ) { // assume it is month - isMonth = TRUE; + isMonth = true; } else // not the month { - wxDateTime_t maxDays = haveMon - ? GetNumOfDaysInMonth(haveYear ? year : Inv_Year, mon) - : 31; - - // can it be day? - if ( (val == 0) || (val > maxDays) ) + if ( haveDay ) { - isYear = TRUE; + // this can only be the year + isYear = true; } - else + else // may be either day or year { - isDay = TRUE; + // use a leap year if we don't have the year yet to allow + // dates like 2/29/1976 which would be rejected otherwise + wxDateTime_t max_days = (wxDateTime_t)( + haveMon + ? GetNumOfDaysInMonth(haveYear ? year : 1976, mon) + : 31 + ); + + // can it be day? + if ( (val == 0) || (val > (unsigned long)max_days) ) + { + // no + isYear = true; + } + else // yes, suppose it's the day + { + isDay = true; + } } } @@ -3108,7 +3929,7 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) if ( haveYear ) break; - haveYear = TRUE; + haveYear = true; year = (wxDateTime_t)val; } @@ -3117,13 +3938,13 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) if ( haveDay ) break; - haveDay = TRUE; + haveDay = true; day = (wxDateTime_t)val; } else if ( isMonth ) { - haveMon = TRUE; + haveMon = true; mon = (Month)(val - 1); } @@ -3137,17 +3958,30 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) // it's a month if ( haveMon ) { - break; + // but we already have a month - maybe we guessed wrong? + if ( !haveDay ) + { + // no need to check in month range as always < 12, but + // the days are counted from 1 unlike the months + day = (wxDateTime_t)(mon + 1); + haveDay = true; + } + else + { + // could possible be the year (doesn't the year come + // before the month in the japanese format?) (FIXME) + break; + } } mon = mon2; - haveMon = TRUE; + haveMon = true; } - else + else // not a valid month name { - wday = GetWeekDayFromName(token, Name_Full | Name_Abbr); - if ( wday != Inv_WeekDay ) + WeekDay wday2 = GetWeekDayFromName(token, Name_Full | Name_Abbr); + if ( wday2 != Inv_WeekDay ) { // a week day if ( haveWDay ) @@ -3155,12 +3989,14 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) break; } - haveWDay = TRUE; + wday = wday2; + + haveWDay = true; } - else + else // not a valid weekday name { // try the ordinals - static const wxChar *ordinals[] = + static const char *ordinals[] = { wxTRANSLATE("first"), wxTRANSLATE("second"), @@ -3183,7 +4019,7 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) wxTRANSLATE("nineteenth"), wxTRANSLATE("twentieth"), // that's enough - otherwise we'd have problems with - // composite (or not) ordinals otherwise + // composite (or not) ordinals }; size_t n; @@ -3210,9 +4046,9 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) break; } - haveDay = TRUE; + haveDay = true; - day = n + 1; + day = (wxDateTime_t)(n + 1); } } } @@ -3226,7 +4062,7 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) { wxLogDebug(_T("ParseDate: no day, no weekday hence no date.")); - return (wxChar *)NULL; + return NULL; } if ( haveWDay && (haveMon || haveYear || haveDay) && @@ -3235,7 +4071,7 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) // without adjectives (which we don't support here) the week day only // makes sense completely separately or with the full date // specification (what would "Wed 1999" mean?) - return (wxChar *)NULL; + return NULL; } if ( !haveWDay && haveYear && !(haveDay && haveMon) ) @@ -3249,14 +4085,14 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) mon = (wxDateTime::Month)(day - 1); // we're in the current year then - if ( year <= GetNumOfDaysInMonth(Inv_Year, mon) ) + if ( (year > 0) && (year <= (int)GetNumOfDaysInMonth(Inv_Year, mon)) ) { - day = year; + day = (wxDateTime_t)year; - haveMon = TRUE; - haveYear = FALSE; + haveMon = true; + haveYear = false; } - //else: no, can't exchange, leave haveMon == FALSE + //else: no, can't exchange, leave haveMon == false } } @@ -3265,7 +4101,7 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) // if we give the year, month and day must be given too wxLogDebug(_T("ParseDate: day and month should be specified if year is.")); - return (wxChar *)NULL; + return NULL; } } @@ -3281,6 +4117,11 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) if ( haveDay ) { + // normally we check the day above but the check is optimistic in case + // we find the day before its month/year so we have to redo it now + if ( day > GetNumOfDaysInMonth(year, mon) ) + return NULL; + Set(day, mon, year); if ( haveWDay ) @@ -3291,7 +4132,7 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) // inconsistency detected wxLogDebug(_T("ParseDate: inconsistent day/weekday.")); - return (wxChar *)NULL; + return NULL; } } } @@ -3311,17 +4152,20 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) p--; } - return p; + const size_t endpos = p - date.wx_str(); + if ( end ) + *end = date.begin() + endpos; + + return date.c_str() + endpos; } -const wxChar *wxDateTime::ParseTime(const wxChar *time) +const char * +wxDateTime::ParseTime(const wxString& time, wxString::const_iterator *end) { - wxCHECK_MSG( time, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") ); - // first try some extra things static const struct { - const wxChar *name; + const char *name; wxDateTime_t hour; } stdTimes[] = { @@ -3336,53 +4180,38 @@ const wxChar *wxDateTime::ParseTime(const wxChar *time) size_t len = timeString.length(); if ( timeString.CmpNoCase(wxString(time, len)) == 0 ) { - Set(stdTimes[n].hour, 0, 0); - - return time + len; - } - } + // casts required by DigitalMars + Set(stdTimes[n].hour, wxDateTime_t(0), wxDateTime_t(0)); - // try all time formats we may think about starting with the standard one - const wxChar *result = ParseFormat(time, _T("%X")); - if ( !result ) - { - // normally, it's the same, but why not try it? - result = ParseFormat(time, _T("%H:%M:%S")); - } - - if ( !result ) - { - // 12hour with AM/PM? - result = ParseFormat(time, _T("%I:%M:%S %p")); - } + if ( end ) + *end = time.begin() + len; - if ( !result ) - { - // without seconds? - result = ParseFormat(time, _T("%H:%M")); + return time.c_str() + len; + } } - if ( !result ) + // try all time formats we may think about in the order from longest to + // shortest + static const char *timeFormats[] = { - // 12hour with AM/PM but without seconds? - result = ParseFormat(time, _T("%I:%M %p")); - } + "%I:%M:%S %p", // 12hour with AM/PM + "%H:%M:%S", // could be the same or 24 hour one so try it too + "%I:%M %p", // 12hour with AM/PM but without seconds + "%H:%M:%S", // and a possibly 24 hour version without seconds + "%X", // possibly something from above or maybe something + // completely different -- try it last - if ( !result ) - { - // just the hour? - result = ParseFormat(time, _T("%H")); - } + // TODO: parse timezones + }; - if ( !result ) + for ( size_t nFmt = 0; nFmt < WXSIZEOF(timeFormats); nFmt++ ) { - // just the hour and AM/PM? - result = ParseFormat(time, _T("%I %p")); + const char *result = ParseFormat(time, timeFormats[nFmt], end); + if ( result ) + return result; } - // TODO: parse timezones - - return result; + return NULL; } // ---------------------------------------------------------------------------- @@ -3394,10 +4223,38 @@ bool wxDateTime::IsWorkDay(Country WXUNUSED(country)) const return !wxDateTimeHolidayAuthority::IsHoliday(*this); } +// ============================================================================ +// wxDateSpan +// ============================================================================ + +wxDateSpan WXDLLIMPEXP_BASE operator*(int n, const wxDateSpan& ds) +{ + wxDateSpan ds1(ds); + return ds1.Multiply(n); +} + // ============================================================================ // wxTimeSpan // ============================================================================ +wxTimeSpan WXDLLIMPEXP_BASE operator*(int n, const wxTimeSpan& ts) +{ + return wxTimeSpan(ts).Multiply(n); +} + +// this enum is only used in wxTimeSpan::Format() below but we can't declare +// it locally to the method as it provokes an internal compiler error in egcs +// 2.91.60 when building with -O2 +enum TimeSpanPart +{ + Part_Week, + Part_Day, + Part_Hour, + Part_Min, + Part_Sec, + Part_MSec +}; + // not all strftime(3) format specifiers make sense here because, for example, // a time span doesn't have a year nor a timezone // @@ -3414,20 +4271,44 @@ bool wxDateTime::IsWorkDay(Country WXUNUSED(country)) const // And, to be better than MFC :-), we also have // %E number of wEeks // %l milliseconds (000 - 999) -wxString wxTimeSpan::Format(const wxChar *format) const +wxString wxTimeSpan::Format(const wxString& format) const { - wxCHECK_MSG( format, _T(""), _T("NULL format in wxTimeSpan::Format") ); + wxCHECK_MSG( !format.empty(), wxEmptyString, + _T("NULL format in wxTimeSpan::Format") ); wxString str; - str.Alloc(wxStrlen(format)); + str.Alloc(format.length()); + + // Suppose we have wxTimeSpan ts(1 /* hour */, 2 /* min */, 3 /* sec */) + // + // Then, of course, ts.Format("%H:%M:%S") must return "01:02:03", but the + // question is what should ts.Format("%S") do? The code here returns "3273" + // in this case (i.e. the total number of seconds, not just seconds % 60) + // because, for me, this call means "give me entire time interval in + // seconds" and not "give me the seconds part of the time interval" + // + // If we agree that it should behave like this, it is clear that the + // interpretation of each format specifier depends on the presence of the + // other format specs in the string: if there was "%H" before "%M", we + // should use GetMinutes() % 60, otherwise just GetMinutes() &c - for ( const wxChar *pch = format; *pch; pch++ ) + // we remember the most important unit found so far + TimeSpanPart partBiggest = Part_MSec; + + for ( wxString::const_iterator pch = format.begin(); pch != format.end(); ++pch ) { wxChar ch = *pch; if ( ch == _T('%') ) { - wxString tmp; + // the start of the format specification of the printf() below + wxString fmtPrefix(_T('%')); + + // the number + long n; + + // the number of digits for the format string, 0 if unused + unsigned digits = 0; ch = *++pch; // get the format spec char switch ( ch ) @@ -3437,44 +4318,115 @@ wxString wxTimeSpan::Format(const wxChar *format) const // fall through case _T('%'): - // will get to str << ch below - break; + str += ch; + + // skip the part below switch + continue; case _T('D'): - tmp.Printf(_T("%d"), GetDays()); + n = GetDays(); + if ( partBiggest < Part_Day ) + { + n %= DAYS_PER_WEEK; + } + else + { + partBiggest = Part_Day; + } break; case _T('E'): - tmp.Printf(_T("%d"), GetWeeks()); + partBiggest = Part_Week; + n = GetWeeks(); break; case _T('H'): - tmp.Printf(_T("%02d"), GetHours()); + n = GetHours(); + if ( partBiggest < Part_Hour ) + { + if ( n < 0 ) + { + // the sign has already been taken into account + // when outputting the biggest part + n = -n; + } + + n %= HOURS_PER_DAY; + } + else + { + partBiggest = Part_Hour; + } + + digits = 2; break; case _T('l'): - tmp.Printf(_T("%03ld"), GetMilliseconds().ToLong()); + n = GetMilliseconds().ToLong(); + if ( partBiggest < Part_MSec ) + { + if ( n < 0 ) + n = -n; + + n %= 1000; + } + //else: no need to reset partBiggest to Part_MSec, it is + // the least significant one anyhow + + digits = 3; break; case _T('M'): - tmp.Printf(_T("%02d"), GetMinutes()); + n = GetMinutes(); + if ( partBiggest < Part_Min ) + { + if ( n < 0 ) + n = -n; + + n %= MIN_PER_HOUR; + } + else + { + partBiggest = Part_Min; + } + + digits = 2; break; case _T('S'): - tmp.Printf(_T("%02ld"), GetSeconds().ToLong()); + n = GetSeconds().ToLong(); + if ( partBiggest < Part_Sec ) + { + if ( n < 0 ) + n = -n; + + n %= SEC_PER_MIN; + } + else + { + partBiggest = Part_Sec; + } + + digits = 2; break; } - if ( !!tmp ) + if ( digits ) { - str += tmp; + // negative numbers need one extra position for '-' display + if ( n < 0 ) + digits++; - // skip str += ch below - continue; + fmtPrefix << _T("0") << digits; } - } - str += ch; + str += wxString::Format(fmtPrefix + _T("ld"), n); + } + else + { + // normal character, just copy + str += ch; + } } return str; @@ -3486,7 +4438,7 @@ wxString wxTimeSpan::Format(const wxChar *format) const #include "wx/arrimpl.cpp" -WX_DEFINE_OBJARRAY(wxDateTimeArray); +WX_DEFINE_OBJARRAY(wxDateTimeArray) static int wxCMPFUNC_CONV wxDateTimeCompareFunc(wxDateTime **first, wxDateTime **second) @@ -3506,16 +4458,16 @@ wxHolidayAuthoritiesArray wxDateTimeHolidayAuthority::ms_authorities; /* static */ bool wxDateTimeHolidayAuthority::IsHoliday(const wxDateTime& dt) { - size_t count = ms_authorities.GetCount(); + size_t count = ms_authorities.size(); for ( size_t n = 0; n < count; n++ ) { if ( ms_authorities[n]->DoIsHoliday(dt) ) { - return TRUE; + return true; } } - return FALSE; + return false; } /* static */ @@ -3526,10 +4478,10 @@ wxDateTimeHolidayAuthority::GetHolidaysInRange(const wxDateTime& dtStart, { wxDateTimeArray hol; - holidays.Empty(); + holidays.Clear(); - size_t count = ms_authorities.GetCount(); - for ( size_t nAuth = 0; nAuth < count; nAuth++ ) + const size_t countAuth = ms_authorities.size(); + for ( size_t nAuth = 0; nAuth < countAuth; nAuth++ ) { ms_authorities[nAuth]->DoGetHolidaysInRange(dtStart, dtEnd, hol); @@ -3538,7 +4490,7 @@ wxDateTimeHolidayAuthority::GetHolidaysInRange(const wxDateTime& dtStart, holidays.Sort(wxDateTimeCompareFunc); - return holidays.GetCount(); + return holidays.size(); } /* static */ @@ -3550,7 +4502,12 @@ void wxDateTimeHolidayAuthority::ClearAllAuthorities() /* static */ void wxDateTimeHolidayAuthority::AddAuthority(wxDateTimeHolidayAuthority *auth) { - ms_authorities.Add(auth); + ms_authorities.push_back(auth); +} + +wxDateTimeHolidayAuthority::~wxDateTimeHolidayAuthority() +{ + // required here for Darwin } // ---------------------------------------------------------------------------- @@ -3598,4 +4555,72 @@ size_t wxDateTimeWorkDays::DoGetHolidaysInRange(const wxDateTime& dtStart, return holidays.GetCount(); } +// ============================================================================ +// 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) +{ + wxASSERT_MSG( m < wxDateTime::Inv_Month, _T("invalid month") ); + + // no wrapping or the for loop above would never end! + m = (wxDateTime::Month)(m + 1); +} + +WXDLLIMPEXP_BASE void wxPrevMonth(wxDateTime::Month& m) +{ + wxASSERT_MSG( m < wxDateTime::Inv_Month, _T("invalid month") ); + + m = m == wxDateTime::Jan ? wxDateTime::Inv_Month + : (wxDateTime::Month)(m - 1); +} + +WXDLLIMPEXP_BASE void wxNextWDay(wxDateTime::WeekDay& wd) +{ + wxASSERT_MSG( wd < wxDateTime::Inv_WeekDay, _T("invalid week day") ); + + // no wrapping or the for loop above would never end! + wd = (wxDateTime::WeekDay)(wd + 1); +} + +WXDLLIMPEXP_BASE void wxPrevWDay(wxDateTime::WeekDay& wd) +{ + wxASSERT_MSG( wd < wxDateTime::Inv_WeekDay, _T("invalid week day") ); + + wd = wd == wxDateTime::Sun ? wxDateTime::Inv_WeekDay + : (wxDateTime::WeekDay)(wd - 1); +} + +#ifdef __WXMSW__ + +wxDateTime& wxDateTime::SetFromMSWSysTime(const SYSTEMTIME& st) +{ + return Set(st.wDay, + static_cast(wxDateTime::Jan + st.wMonth - 1), + st.wYear, + 0, 0, 0); +} + +void wxDateTime::GetAsMSWSysTime(SYSTEMTIME* st) const +{ + const wxDateTime::Tm tm(GetTm()); + + st->wYear = (WXWORD)tm.year; + st->wMonth = (WXWORD)(tm.mon - wxDateTime::Jan + 1); + st->wDay = tm.mday; + + st->wDayOfWeek = + st->wHour = + st->wMinute = + st->wSecond = + st->wMilliseconds = 0; +} +#endif // __WXMSW__ +#endif // wxUSE_DATETIME