};
// ----------------------------------------------------------------------------
-// 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
// ----------------------------------------------------------------------------
// implementation of wxDateTime
// ============================================================================
-// ----------------------------------------------------------------------------
-// static data
-// ----------------------------------------------------------------------------
-
-wxDateTime::Country wxDateTime::ms_country = wxDateTime::Country_Unknown;
-wxDateTime wxDateTime::ms_InvDateTime;
-
// ----------------------------------------------------------------------------
// struct Tm
// ----------------------------------------------------------------------------
monDiff += MONTHS_IN_YEAR;
}
- while ( monDiff + mon > MONTHS_IN_YEAR )
+ while ( monDiff + mon >= MONTHS_IN_YEAR )
{
year++;
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);
{
case Gregorian:
return Now().GetMonth();
- break;
case Julian:
wxFAIL_MSG(_T("TODO"));
case Gregorian:
case Julian:
return IsLeapYear(year) ? 366 : 365;
- break;
default:
wxFAIL_MSG(_T("unsupported calendar"));
if ( !IsDSTApplicable(year, country) )
{
- return ms_InvDateTime;
+ return wxInvalidDateTime;
}
wxDateTime dt;
dt += wxTimeSpan::Hours(1);
- dt.MakeGMT();
+ // disable DST tests because it could result in an infinite recursion!
+ dt.MakeGMT(TRUE);
}
else switch ( country )
{
if ( !IsDSTApplicable(year, country) )
{
- return ms_InvDateTime;
+ return wxInvalidDateTime;
}
wxDateTime dt;
dt += wxTimeSpan::Hours(1);
- dt.MakeGMT();
+ // disable DST tests because it could result in an infinite recursion!
+ dt.MakeGMT(TRUE);
}
else switch ( country )
{
wxFAIL_MSG( _T("mktime() failed") );
- return ms_InvDateTime;
+ return wxInvalidDateTime;
}
else
{
// 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;
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)
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;
}
wxDateTime::Tm wxDateTime::GetTm(const TimeZone& tz) const
{
-#ifdef __VMS__
- int time2;
-#endif
wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") );
time_t time = GetTicks();
}
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);
Set(tm);
+ wxASSERT_MSG( IsSameTime(tm),
+ _T("Add(wxDateSpan) shouldn't modify time") );
+
return *this;
}
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 )
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();
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();
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;
}
{
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) )
}
}
-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;
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();
{
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);
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
}
// and now the interesting part: the timezone
- wxDateTime_t offset;
+ int offset;
if ( *p == _T('-') || *p == _T('+') )
{
// the explicit offset given: it has the form of hhmm
// the spec was correct
Set(day, mon, year, hour, min, sec);
- MakeTimezone(60*offset);
+ MakeTimezone((wxDateTime_t)(60*offset));
return p;
}
// 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 )
{
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
int year = 0;
// tokenize the string
- wxStringTokenizer tok(p, _T(",/-\t "));
+ wxStringTokenizer tok(p, _T(",/-\t\n "));
while ( tok.HasMoreTokens() )
{
wxString token = tok.GetNextToken();
projects / wxWidgets.git / blobdiff