X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/fb10f04c957b3712c04ddec92d083209e127b011..f22e0c3c3f90510f1a92ab148f20b2453e338626:/src/common/datetime.cpp diff --git a/src/common/datetime.cpp b/src/common/datetime.cpp index 10e5877e5a..eae9bc33bf 100644 --- a/src/common/datetime.cpp +++ b/src/common/datetime.cpp @@ -92,7 +92,7 @@ #endif // broken strptime() #ifndef WX_TIMEZONE - #if defined(__MINGW32__) || defined(__VISAGECPP__) + #if defined(__BORLANDC__) || defined(__MINGW32__) || defined(__VISAGECPP__) #define WX_TIMEZONE _timezone #else // unknown platform - try timezone #define WX_TIMEZONE timezone @@ -137,13 +137,23 @@ static const wxDateTime::wxDateTime_t gs_cumulatedDays[2][MONTHS_IN_YEAR] = }; // ---------------------------------------------------------------------------- -// globals +// global data +// ---------------------------------------------------------------------------- + +static wxDateTime gs_dtDefault; + +wxDateTime& wxDefaultDateTime = gs_dtDefault; + +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 - wxCriticalSection gs_critsectTimezone; + static wxCriticalSection gs_critsectTimezone; #endif // wxUSE_THREADS // ---------------------------------------------------------------------------- @@ -364,13 +374,6 @@ static wxString GetAlphaToken(const wxChar*& p) // implementation of wxDateTime // ============================================================================ -// ---------------------------------------------------------------------------- -// static data -// ---------------------------------------------------------------------------- - -wxDateTime::Country wxDateTime::ms_country = wxDateTime::Country_Unknown; -wxDateTime wxDateTime::ms_InvDateTime; - // ---------------------------------------------------------------------------- // struct Tm // ---------------------------------------------------------------------------- @@ -424,7 +427,7 @@ void wxDateTime::Tm::AddMonths(int monDiff) monDiff += MONTHS_IN_YEAR; } - while ( monDiff + mon > MONTHS_IN_YEAR ) + while ( monDiff + mon >= MONTHS_IN_YEAR ) { year++; @@ -439,14 +442,14 @@ void wxDateTime::Tm::AddMonths(int monDiff) void wxDateTime::Tm::AddDays(int dayDiff) { // normalize the days field - mday += dayDiff; - while ( mday < 1 ) + while ( dayDiff + mday < 1 ) { AddMonths(-1); - mday += GetNumOfDaysInMonth(year, mon); + dayDiff += GetNumOfDaysInMonth(year, mon); } + mday += dayDiff; while ( mday > GetNumOfDaysInMonth(year, mon) ) { mday -= GetNumOfDaysInMonth(year, mon); @@ -584,7 +587,6 @@ wxDateTime::Month wxDateTime::GetCurrentMonth(wxDateTime::Calendar cal) { case Gregorian: return Now().GetMonth(); - break; case Julian: wxFAIL_MSG(_T("TODO")); @@ -612,7 +614,6 @@ wxDateTime::wxDateTime_t wxDateTime::GetNumberOfDays(int year, Calendar cal) case Gregorian: case Julian: return IsLeapYear(year) ? 366 : 365; - break; default: wxFAIL_MSG(_T("unsupported calendar")); @@ -819,7 +820,7 @@ wxDateTime wxDateTime::GetBeginDST(int year, Country country) if ( !IsDSTApplicable(year, country) ) { - return ms_InvDateTime; + return wxInvalidDateTime; } wxDateTime dt; @@ -835,7 +836,8 @@ wxDateTime wxDateTime::GetBeginDST(int year, Country country) dt += wxTimeSpan::Hours(1); - dt.MakeGMT(); + // disable DST tests because it could result in an infinite recursion! + dt.MakeGMT(TRUE); } else switch ( country ) { @@ -919,7 +921,7 @@ wxDateTime wxDateTime::GetEndDST(int year, Country country) if ( !IsDSTApplicable(year, country) ) { - return ms_InvDateTime; + return wxInvalidDateTime; } wxDateTime dt; @@ -935,7 +937,8 @@ wxDateTime wxDateTime::GetEndDST(int year, Country country) dt += wxTimeSpan::Hours(1); - dt.MakeGMT(); + // disable DST tests because it could result in an infinite recursion! + dt.MakeGMT(TRUE); } else switch ( country ) { @@ -1010,7 +1013,7 @@ wxDateTime& wxDateTime::Set(const struct tm& tm) wxFAIL_MSG( _T("mktime() failed") ); - return ms_InvDateTime; + return wxInvalidDateTime; } else { @@ -1028,14 +1031,13 @@ wxDateTime& wxDateTime::Set(wxDateTime_t hour, // 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, - ms_InvDateTime, + wxInvalidDateTime, _T("Invalid time in wxDateTime::Set()") ); // get the current date from system - time_t timet = GetTimeNow(); - struct tm *tm = localtime(&timet); + struct tm *tm = GetTmNow(); - wxCHECK_MSG( tm, ms_InvDateTime, _T("localtime() failed") ); + wxCHECK_MSG( tm, wxInvalidDateTime, _T("localtime() failed") ); // adjust the time tm->tm_hour = hour; @@ -1059,13 +1061,13 @@ wxDateTime& wxDateTime::Set(wxDateTime_t day, wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); wxCHECK_MSG( hour < 24 && second < 62 && minute < 60 && millisec < 1000, - ms_InvDateTime, + wxInvalidDateTime, _T("Invalid time in wxDateTime::Set()") ); ReplaceDefaultYearMonthWithCurrent(&year, &month); wxCHECK_MSG( (0 < day) && (day <= GetNumberOfDays(month, year)), - ms_InvDateTime, + wxInvalidDateTime, _T("Invalid date in wxDateTime::Set()") ); // the range of time_t type (inclusive) @@ -1117,7 +1119,24 @@ wxDateTime& wxDateTime::Set(double jdn) jdn *= MILLISECONDS_PER_DAY; - m_time = jdn; + m_time.Assign(jdn); + + return *this; +} + +wxDateTime& wxDateTime::ResetTime() +{ + Tm tm = GetTm(); + + if ( tm.hour || tm.min || tm.sec || tm.msec ) + { + tm.msec = + tm.sec = + tm.min = + tm.hour = 0; + + Set(tm); + } return *this; } @@ -1128,9 +1147,6 @@ wxDateTime& wxDateTime::Set(double jdn) wxDateTime::Tm wxDateTime::GetTm(const TimeZone& tz) const { -#ifdef __VMS__ - int time2; -#endif wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); time_t time = GetTicks(); @@ -1148,12 +1164,12 @@ wxDateTime::Tm wxDateTime::GetTm(const TimeZone& tz) const } else { - time += tz.GetOffset(); -#ifdef __VMS__ /* time is unsigned so VMS gives a warning on the original */ - time2 = (int) time; - if ( time2 >= 0 ) + time += (time_t)tz.GetOffset(); +#ifdef __VMS__ // time is unsigned so avoid warning + int time2 = (int) time; + if ( time2 >= 0 ) #else - if ( time >= 0 ) + if ( time >= 0 ) #endif { tm = gmtime(&time); @@ -1346,6 +1362,9 @@ wxDateTime& wxDateTime::Add(const wxDateSpan& diff) Set(tm); + wxASSERT_MSG( IsSameTime(tm), + _T("Add(wxDateSpan) shouldn't modify time") ); + return *this; } @@ -1357,14 +1376,17 @@ wxDateTime& wxDateTime::SetToLastMonthDay(Month month, int year) { // take the current month/year if none specified - ReplaceDefaultYearMonthWithCurrent(&year, &month); + if ( year == Inv_Year ) + year = GetYear(); + if ( month == Inv_Month ) + month = GetMonth(); return Set(GetNumOfDaysInMonth(year, month), month, year); } wxDateTime& wxDateTime::SetToWeekDayInSameWeek(WeekDay weekday) { - wxCHECK_MSG( weekday != Inv_WeekDay, ms_InvDateTime, _T("invalid weekday") ); + wxCHECK_MSG( weekday != Inv_WeekDay, wxInvalidDateTime, _T("invalid weekday") ); WeekDay wdayThis = GetWeekDay(); if ( weekday == wdayThis ) @@ -1384,7 +1406,7 @@ wxDateTime& wxDateTime::SetToWeekDayInSameWeek(WeekDay weekday) wxDateTime& wxDateTime::SetToNextWeekDay(WeekDay weekday) { - wxCHECK_MSG( weekday != Inv_WeekDay, ms_InvDateTime, _T("invalid weekday") ); + wxCHECK_MSG( weekday != Inv_WeekDay, wxInvalidDateTime, _T("invalid weekday") ); int diff; WeekDay wdayThis = GetWeekDay(); @@ -1408,7 +1430,7 @@ wxDateTime& wxDateTime::SetToNextWeekDay(WeekDay weekday) wxDateTime& wxDateTime::SetToPrevWeekDay(WeekDay weekday) { - wxCHECK_MSG( weekday != Inv_WeekDay, ms_InvDateTime, _T("invalid weekday") ); + wxCHECK_MSG( weekday != Inv_WeekDay, wxInvalidDateTime, _T("invalid weekday") ); int diff; WeekDay wdayThis = GetWeekDay(); @@ -1505,47 +1527,50 @@ wxDateTime::wxDateTime_t wxDateTime::GetDayOfYear(const TimeZone& tz) const return gs_cumulatedDays[IsLeapYear(tm.year)][tm.mon] + tm.mday; } -wxDateTime::wxDateTime_t wxDateTime::GetWeekOfYear(const TimeZone& tz) const +wxDateTime::wxDateTime_t wxDateTime::GetWeekOfYear(wxDateTime::WeekFlags flags, + const TimeZone& tz) const { -#if 0 - // the first week of the year is the one which contains Jan, 4 (according - // to ISO standard rule), so the year day N0 = 4 + 7*W always lies in the - // week W+1. As any day N = 7*W + 4 + (N - 4)%7, it lies in the same week - // as N0 or in the next one. - - // TODO this surely may be optimized - I got confused while writing it + if ( flags == Default_First ) + { + flags = GetCountry() == USA ? Sunday_First : Monday_First; + } wxDateTime_t nDayInYear = GetDayOfYear(tz); + wxDateTime_t week; - // the week day of the day lying in the first week - WeekDay wdayStart = wxDateTime(4, Jan, GetYear()).GetWeekDay(); - - wxDateTime_t week = (nDayInYear - 4) / 7 + 1; + WeekDay wd = GetWeekDay(tz); + if ( flags == Sunday_First ) + { + week = (nDayInYear - wd + 7) / 7; + } + else + { + // have to shift the week days values + week = (nDayInYear - (wd - 1 + 7) % 7 + 7) / 7; + } - // notice that Sunday shoould be counted as 7, not 0 here! - if ( ((nDayInYear - 4) % 7) + (!wdayStart ? 7 : wdayStart) > 7 ) + // FIXME some more elegant way?? + WeekDay wdYearStart = wxDateTime(1, Jan, GetYear()).GetWeekDay(); + if ( wdYearStart == Wed || wdYearStart == Thu ) { week++; } return week; -#else // this seems to be a bit simpler and I believe is also correct - return (WeekDay)((GetDayOfYear() - (GetWeekDay() - 1 + 7) % 7 + 7) / 7); -#endif // 0/1 } -wxDateTime::wxDateTime_t wxDateTime::GetWeekOfMonth(const TimeZone& tz) const +wxDateTime::wxDateTime_t wxDateTime::GetWeekOfMonth(wxDateTime::WeekFlags flags, + const TimeZone& tz) const { - size_t nWeek = 0; - - wxDateTime dt(*this); - do + Tm tm = GetTm(tz); + wxDateTime dtMonthStart = wxDateTime(1, tm.mon, tm.year); + size_t nWeek = GetWeekOfYear(flags) - dtMonthStart.GetWeekOfYear(flags) + 1; + if ( nWeek < 0 ) { - nWeek++; - - dt -= wxTimeSpan::Week(); + // this may happen for January when Jan, 1 is the last week of the + // previous year + nWeek += IsLeapYear(tm.year - 1) ? 53 : 52; } - while ( dt.GetMonth(tz) == GetMonth(tz) ); return nWeek; } @@ -1554,7 +1579,7 @@ wxDateTime& wxDateTime::SetToYearDay(wxDateTime::wxDateTime_t yday) { int year = GetYear(); wxCHECK_MSG( (0 < yday) && (yday <= GetNumberOfDays(year)), - ms_InvDateTime, _T("invalid year day") ); + wxInvalidDateTime, _T("invalid year day") ); bool isLeap = IsLeapYear(year); for ( Month mon = Jan; mon < Inv_Month; wxNextMonth(mon) ) @@ -1630,12 +1655,13 @@ int wxDateTime::IsDST(wxDateTime::Country country) const } } -wxDateTime& wxDateTime::MakeTimezone(const TimeZone& tz) +wxDateTime& wxDateTime::MakeTimezone(const TimeZone& tz, bool noDST) { int secDiff = GetTimeZone() + tz.GetOffset(); - // we need to know whether DST is or not in effect for this date - if ( IsDST() == 1 ) + // 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; @@ -1650,9 +1676,6 @@ wxDateTime& wxDateTime::MakeTimezone(const TimeZone& tz) wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const { -#ifdef __VMS__ - int time2; -#endif wxCHECK_MSG( format, _T(""), _T("NULL format in wxDateTime::Format") ); time_t time = GetTicks(); @@ -1672,11 +1695,11 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const { time += tz.GetOffset(); -#ifdef __VMS__ /* time is unsigned so VMS gives a warning on the original */ - time2 = (int) time; - if ( time2 >= 0 ) +#ifdef __VMS__ // time is unsigned so avoid the warning + int time2 = (int) time; + if ( time2 >= 0 ) #else - if ( time >= 0 ) + if ( time >= 0 ) #endif { tm = gmtime(&time); @@ -1931,14 +1954,11 @@ restart: break; case _T('U'): // week number in the year (Sunday 1st week day) - { - int week = (GetDayOfYear(tz) - tm.GetWeekDay() + 7) / 7; - res += wxString::Format(fmt, week); - } + res += wxString::Format(fmt, GetWeekOfYear(Sunday_First, tz)); break; case _T('W'): // week number in the year (Monday 1st week day) - res += wxString::Format(fmt, GetWeekOfYear(tz)); + res += wxString::Format(fmt, GetWeekOfYear(Monday_First, tz)); break; case _T('w'): // weekday as a number (0-6), Sunday = 0 @@ -2293,7 +2313,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date) // the spec was correct Set(day, mon, year, hour, min, sec); - MakeTimezone(60*offset); + MakeTimezone((wxDateTime_t)(60*offset)); return p; } @@ -2397,7 +2417,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, // 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 %e %H:%M:%S %Y"); + static const wxChar *fmtCtime = _T("%a %b %d %H:%M:%S %Y"); const wxChar *result = dt.ParseFormat(input, fmtCtime); if ( !result ) @@ -2623,18 +2643,27 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, { wxDateTime dt; - wxString fmtDate; + 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 ) + { + // ok, be nice and try another one + result = dt.ParseFormat(input, fmtDateAlt); + } + if ( !result ) { // bad luck @@ -2882,7 +2911,7 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) int year = 0; // tokenize the string - wxStringTokenizer tok(p, _T(",/-\t ")); + wxStringTokenizer tok(p, _T(",/-\t\n ")); while ( tok.HasMoreTokens() ) { wxString token = tok.GetNextToken();