// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
+// TODO: for $DEITY sake, someone please fix the #ifdef __WXWINCE__ everywhere,
+// the proper way to do it is to implement (subset of) wxStrftime() for
+// CE instead of this horror!!
+
/*
* Implementation notes:
*
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "datetime.h"
#endif
#include "wx/tokenzr.h"
#include "wx/module.h"
-#define wxDEFINE_TIME_CONSTANTS // before including datetime.h
-
#include <ctype.h>
+#ifdef __WINDOWS__
+ #include "wx/msw/wrapwin.h"
+ #include <winnls.h>
+ #ifndef __WXWINCE__
+ #include <locale.h>
+ #endif
+#endif
+
#include "wx/datetime.h"
-#include "wx/timer.h" // for wxGetLocalTimeMillis()
+#include "wx/stopwatch.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,wxT("%Y-%m-%d %H:%M:%S")) ;
+}
+
+template<> void wxStringWriteValue(wxString &s , const wxDateTime &data )
+{
+ s = data.Format(wxT("%Y-%m-%d %H:%M:%S")) ;
+}
+
+wxCUSTOM_TYPE_INFO(wxDateTime, wxToStringConverter<wxDateTime> , wxFromStringConverter<wxDateTime>)
+
+#endif
+
+//
// ----------------------------------------------------------------------------
// conditional compilation
// ----------------------------------------------------------------------------
#undef HAVE_STRPTIME
#endif // broken strptime()
+#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 <wtime.h>
#endif
#if !defined(WX_TIMEZONE) && !defined(WX_GMTOFF_IN_TM)
- #if defined(__BORLANDC__) || defined(__MINGW32__) || defined(__VISAGECPP__)
+ #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;
{
wxDateTimeHolidayAuthority::AddAuthority(new wxDateTimeWorkDays);
- return TRUE;
+ return true;
}
virtual void OnExit()
{
wxDateTimeHolidayAuthority::ClearAllAuthorities();
- wxDateTimeHolidayAuthority::ms_authorities.Clear();
+ wxDateTimeHolidayAuthority::ms_authorities.clear();
}
private:
// global data
// ----------------------------------------------------------------------------
+const wxChar * wxDefaultDateTimeFormat = wxT("%c");
+const wxChar * wxDefaultTimeSpanFormat = wxT("%H:%M:%S");
+
// 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
// ----------------------------------------------------------------------------
// (in seconds)
static int GetTimeZone()
{
- // set to TRUE when the timezone is set
- static bool s_timezoneSet = FALSE;
#ifdef WX_GMTOFF_IN_TM
+ // set to true when the timezone is set
+ static bool s_timezoneSet = false;
static long gmtoffset = LONG_MAX; // invalid timezone
-#endif
-
- wxCRIT_SECT_LOCKER(lock, gs_critsectTimezone);
// ensure that the timezone variable is set by calling localtime
if ( !s_timezoneSet )
struct tm *tm;
tm = localtime(&t);
- 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;
-#endif
}
-#ifdef WX_GMTOFF_IN_TM
return (int)gmtoffset;
-#else
+#else // !WX_GMTOFF_IN_TM
return (int)WX_TIMEZONE;
-#endif
+#endif // WX_GMTOFF_IN_TM/!WX_GMTOFF_IN_TM
}
// return the integral part of the JDN for the midnight of the given date (to
- JDN_OFFSET;
}
+#ifndef __WXWINCE__
// this function is a wrapper around strftime(3) adding error checking
static wxString CallStrftime(const wxChar *format, const tm* tm)
{
return wxString(buf);
}
+#endif
#ifdef HAVE_STRPTIME
+// glibc2 doesn't define this in the headers unless _XOPEN_SOURCE is defined
+// which, unfortunately, wreaks havoc elsewhere
+#if defined(__GLIBC__) && (__GLIBC__ == 2)
+ extern "C" char *strptime(const char *, const char *, struct tm *);
+#endif
+
// Unicode-friendly strptime() wrapper
static const wxChar *
CallStrptime(const wxChar *input, const char *fmt, tm *tm)
break;
}
- return !!s && s.ToULong(number);
+ return !s.empty() && s.ToULong(number);
}
// scans all alphabetic characters and returns the resulting string
: 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
// 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)((wxDateTime::WeekDay)(GetTruncatedJDN(mday, mon, year) + 2) % 7);
}
void wxDateTime::Tm::AddMonths(int monDiff)
dayDiff += GetNumOfDaysInMonth(year, mon);
}
- mday += dayDiff;
+ mday = (wxDateTime::wxDateTime_t)( mday + dayDiff );
while ( mday > GetNumOfDaysInMonth(year, mon) )
{
mday -= GetNumOfDaysInMonth(year, mon);
{
wxFAIL_MSG(_T("unknown calendar"));
- return FALSE;
+ return false;
}
}
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") );
+#ifndef __WXWINCE__
// 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;
tm.tm_mon = month;
return CallStrftime(flags == Name_Abbr ? _T("%b") : _T("%B"), &tm);
+#else
+ 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
}
/* 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") );
+#ifndef __WXWINCE__
+ // 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;
// ... and call strftime()
return CallStrftime(flags == Name_Abbr ? _T("%a") : _T("%A"), &tm);
+#else
+ 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
}
/* static */
{
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();
}
}
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
ms_country = USA;
}
}
+#else
+ ms_country = USA;
+#endif
return ms_country;
}
dt += wxTimeSpan::Hours(1);
// disable DST tests because it could result in an infinite recursion!
- dt.MakeGMT(TRUE);
+ dt.MakeGMT(true);
}
else switch ( country )
{
dt += wxTimeSpan::Hours(1);
// disable DST tests because it could result in an infinite recursion!
- dt.MakeGMT(TRUE);
+ dt.MakeGMT(true);
}
else switch ( country )
{
// 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") );
wxDATETIME_CHECK( tm, _T("localtime() 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;
- (void)Set(*tm);
+ // 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(tm1);
// and finally adjust milliseconds
return SetMillisecond(millisec);
(void)Set(tm);
// and finally adjust milliseconds
- return SetMillisecond(millisec);
+ if (IsValid())
+ SetMillisecond(millisec);
+
+ return *this;
}
else
{
m_time.Assign(jdn);
+ // JDNs always suppose an UTC date, so bring it back to local time zone
+ // (also see GetJulianDayNumber() implementation)
+ long tzDiff = GetTimeZone();
+ if ( IsDST() == 1 )
+ {
+ // FIXME: again, we suppose that DST is always one hour
+ tzDiff -= 3600;
+ }
+
+ m_time += tzDiff*1000; // tzDiff is in seconds
+
return *this;
}
wxDateTime& wxDateTime::SetFromDOS(unsigned long ddt)
{
struct tm tm;
+ InitTm(tm);
long year = ddt & 0xFE000000;
year >>= 25;
// Weekday and monthday stuff
// ----------------------------------------------------------------------------
-bool wxDateTime::SetToTheWeek(wxDateTime_t numWeek,
- WeekDay weekday,
- WeekFlags flags)
+// convert Sun, Mon, ..., Sat into 6, 0, ..., 5
+static inline int ConvertWeekDayToMondayBase(int wd)
+{
+ 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") );
- int year = GetYear();
+ // Jan 4 always lies in the 1st week of the year
+ wxDateTime dt(4, Jan, year);
+ dt.SetToWeekDayInSameWeek(wd);
+ dt += wxDateSpan::Weeks(numWeek - 1);
+ return dt;
+}
+
+// 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
- Set(4, Jan, year);
- SetToWeekDayInSameWeek(weekday, flags) += wxDateSpan::Weeks(numWeek - 1);
+ 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);
}
wxDateTime& wxDateTime::SetToLastMonthDay(Month month,
{
wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") );
- int wdayThis = GetWeekDay();
- if ( weekday == wdayThis )
+ int wdayDst = weekday,
+ wdayThis = GetWeekDay();
+ if ( wdayDst == wdayThis )
{
// nothing to do
return *this;
// 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 ( 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 ( weekday < wdayThis )
+ 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));
}
}
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
{
*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,
// 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;
}
double wxDateTime::GetJulianDayNumber() const
{
- // JDN are always expressed for the GMT dates
- Tm tm(ToTimezone(GMT0).GetTm(GMT0));
+ // JDN are always expressed for the UTC dates
+ Tm tm(ToTimezone(UTC).GetTm(UTC));
double result = GetTruncatedJDN(tm.mday, tm.mon, tm.year);
wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
{
- wxCHECK_MSG( format, _T(""), _T("NULL format in wxDateTime::Format") );
+ wxCHECK_MSG( format, 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
tm = (struct tm *)NULL;
}
}
-
+#ifndef __WXWINCE__
+ //Windows CE doesn't support strftime or wcsftime, so we use the generic implementation
if ( tm )
{
return CallStrftime(format, tm);
}
+#endif
//else: use generic code below
}
fmt = _T("%02d");
}
- bool restart = TRUE;
+ bool restart = true;
while ( restart )
{
- restart = FALSE;
+ restart = false;
// start of the format specification
switch ( *p )
{
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;
case _T('c'): // locale default date and time representation
case _T('x'): // locale default date representation
+#ifndef __WXWINCE__
//
// the problem: there is no way to know what do these format
// specifications correspond to for the current locale.
res += str;
}
+#else
+ //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
break;
case _T('d'): // day of a month (01-31)
break;
case _T('p'): // AM or PM string
+#ifndef __WXWINCE__
res += CallStrftime(_T("%p"), &tmTimeOnly);
+#else
+ res += (tmTimeOnly.tm_hour > 12) ? wxT("pm") : wxT("am");
+#endif
break;
case _T('S'): // second as a decimal number (00-61)
case _T('X'): // locale default time representation
// just use strftime() to format the time for us
+#ifndef __WXWINCE__
res += CallStrftime(_T("%X"), &tmTimeOnly);
+#else
+ res += wxString::Format(wxT("%02d:%02d:%02d"),tm.hour, tm.min, tm.sec);
+#endif
break;
case _T('y'): // year without century (00-99)
break;
case _T('Z'): // timezone name
+#ifndef __WXWINCE__
res += CallStrftime(_T("%Z"), &tmTimeOnly);
+#endif
break;
default:
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;
}
return (wxChar *)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;
}
- wxDateTime_t hour = *p++ - _T('0');
+ wxDateTime_t hour = (wxDateTime_t)(*p++ - _T('0'));
if ( !wxIsdigit(*p) )
{
}
hour *= 10;
- hour += *p++ - _T('0');
+ hour = (wxDateTime_t)(hour + (*p++ - _T('0')));
if ( *p++ != _T(':') )
{
return (wxChar *)NULL;
}
- wxDateTime_t min = *p++ - _T('0');
+ wxDateTime_t min = (wxDateTime_t)(*p++ - _T('0'));
if ( !wxIsdigit(*p) )
{
}
min *= 10;
- min += *p++ - _T('0');
+ min = (wxDateTime_t)(min + *p++ - _T('0'));
wxDateTime_t sec = 0;
if ( *p++ == _T(':') )
return (wxChar *)NULL;
}
- sec = *p++ - _T('0');
+ sec = (wxDateTime_t)(*p++ - _T('0'));
if ( !wxIsdigit(*p) )
{
}
sec *= 10;
- sec += *p++ - _T('0');
+ sec = (wxDateTime_t)(sec + *p++ - _T('0'));
}
if ( *p++ != _T(' ') )
}
// 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
return p;
}
+#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;
+ }
+
+ 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;
+}
+
+#endif // __WINDOWS__
+
const wxChar *wxDateTime::ParseFormat(const wxChar *date,
const wxChar *format,
const wxDateTime& dateDef)
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,
// parse the optional width
size_t width = 0;
- while ( isdigit(*++fmt) )
+ while ( wxIsdigit(*++fmt) )
{
width *= 10;
width += *fmt - _T('0');
return (wxChar *)NULL;
}
}
- haveWDay = TRUE;
+ haveWDay = true;
break;
case _T('b'): // a month name
return (wxChar *)NULL;
}
}
- haveMon = TRUE;
+ haveMon = true;
break;
case _T('c'): // locale default date and time representation
Tm tm = dt.GetTm();
haveDay = haveMon = haveYear =
- haveHour = haveMin = haveSec = TRUE;
+ haveHour = haveMin = haveSec = true;
hour = tm.hour;
min = tm.min;
// 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;
return (wxChar *)NULL;
}
- haveHour = TRUE;
+ haveHour = true;
hour = (wxDateTime_t)num;
break;
return (wxChar *)NULL;
}
- haveHour = TRUE;
- hourIsIn12hFormat = TRUE;
+ haveHour = true;
+ hourIsIn12hFormat = true;
hour = (wxDateTime_t)(num % 12); // 12 should be 0
break;
return (wxChar *)NULL;
}
- haveYDay = TRUE;
+ haveYDay = true;
yday = (wxDateTime_t)num;
break;
return (wxChar *)NULL;
}
- haveMon = TRUE;
+ haveMon = true;
mon = (Month)(num - 1);
break;
return (wxChar *)NULL;
}
- haveMin = TRUE;
+ haveMin = true;
min = (wxDateTime_t)num;
break;
wxString am, pm, token = GetAlphaToken(input);
GetAmPmStrings(&am, &pm);
+ if (am.empty() && pm.empty())
+ return (wxChar *)NULL; // no am/pm strings defined
if ( token.CmpNoCase(pm) == 0 )
{
- isPM = TRUE;
+ isPM = true;
}
else if ( token.CmpNoCase(am) != 0 )
{
return (wxChar *)NULL;
}
- haveHour = haveMin = haveSec = TRUE;
+ haveHour = haveMin = haveSec = true;
Tm tm = dt.GetTm();
hour = tm.hour;
return (wxChar *)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) )
return (wxChar *)NULL;
}
- haveSec = TRUE;
+ haveSec = true;
sec = (wxDateTime_t)num;
break;
return (wxChar *)NULL;
}
- haveHour = haveMin = haveSec = TRUE;
+ haveHour = haveMin = haveSec = true;
Tm tm = dt.GetTm();
hour = tm.hour;
return (wxChar *)NULL;
}
- haveWDay = TRUE;
+ haveWDay = true;
wday = (WeekDay)num;
break;
{
input = result;
- haveDay = haveMon = haveYear = TRUE;
+ haveDay = haveMon = haveYear = true;
year = 1900 + tm.tm_year;
mon = (Month)tm.tm_mon;
}
#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
+ 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
{
- fmtDate = _T("%m/%d/%y");
- fmtDateAlt = _T("%d/%m/%y");
+ 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 )
+ if ( !result && !fmtDateAlt.empty() )
{
// ok, be nice and try another one
result = dt.ParseFormat(input, fmtDateAlt);
Tm tm = dt.GetTm();
- haveDay = haveMon = haveYear = TRUE;
+ haveDay = haveMon = haveYear = true;
year = tm.year;
mon = tm.mon;
return (wxChar *)NULL;
}
- haveHour = haveMin = haveSec = TRUE;
+ haveHour = haveMin = haveSec = true;
hour = tm.tm_hour;
min = tm.tm_min;
return (wxChar *)NULL;
}
- haveHour = haveMin = haveSec = TRUE;
+ haveHour = haveMin = haveSec = true;
Tm tm = dt.GetTm();
hour = tm.hour;
return (wxChar *)NULL;
}
- haveYear = TRUE;
+ haveYear = true;
// TODO should have an option for roll over date instead of
// hard coding it here
return (wxChar *)NULL;
}
- haveYear = TRUE;
+ haveYear = true;
year = (wxDateTime_t)num;
break;
Set(tm);
+ // 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;
+ }
+
return input;
}
{
wxCHECK_MSG( date, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") );
- // there is a public domain version of getdate.y, but it only works for
- // English...
- wxFAIL_MSG(_T("TODO"));
+ // 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();
+
+ const wxChar* pchTime;
- return (wxChar *)NULL;
+ // Try to parse the beginning of the string as a date
+ const wxChar* pchDate = dtDate.ParseDate(date);
+
+ // We got a date in the beginning, see if there is a time specified after the date
+ if ( pchDate )
+ {
+ // Skip spaces, as the ParseTime() function fails on spaces
+ while ( wxIsspace(*pchDate) )
+ pchDate++;
+
+ pchTime = dtTime.ParseTime(pchDate);
+ }
+ else // no date in the beginning
+ {
+ // check and see if we have a time followed by a date
+ pchTime = dtTime.ParseTime(date);
+ if ( pchTime )
+ {
+ while ( wxIsspace(*pchTime) )
+ pchTime++;
+
+ pchDate = dtDate.ParseDate(pchTime);
+ }
+ }
+
+ // If we have a date specified, set our own data to the same date
+ if ( !pchDate || !pchTime )
+ return NULL;
+
+ Set(dtDate.GetDay(), dtDate.GetMonth(), dtDate.GetYear(),
+ dtTime.GetHour(), dtTime.GetMinute(), dtTime.GetSecond(),
+ dtTime.GetMillisecond());
+
+ // Return endpoint of scan
+ return pchDate > pchTime ? pchDate : pchTime;
}
const wxChar *wxDateTime::ParseDate(const wxChar *date)
{
wxString date = wxGetTranslation(literalDates[n].str);
size_t len = date.length();
- if ( wxStrlen(p) >= len && (wxString(p, len).CmpNoCase(date) == 0) )
+ 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(date) == 0 )
{
- *this += wxDateSpan::Days(dayDiffFromToday);
- }
+ // nothing can follow this, so stop here
+ p += len;
- return p;
+ int dayDiffFromToday = literalDates[n].dayDiffFromToday;
+ *this = Today();
+ if ( dayDiffFromToday )
+ {
+ *this += wxDateSpan::Days(dayDiffFromToday);
+ }
+
+ return p;
+ }
}
}
// 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;
{
// 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 > (unsigned long)maxDays) ) // cast to shut up compiler warning in BCC
+ if ( haveDay )
{
- isYear = TRUE;
+ // this can only be the year
+ isYear = true;
}
- else
+ else // may be either day or year
{
- isDay = TRUE;
+ wxDateTime_t max_days = (wxDateTime_t)(
+ haveMon
+ ? GetNumOfDaysInMonth(haveYear ? year : Inv_Year, 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;
+ }
}
}
if ( haveYear )
break;
- haveYear = TRUE;
+ haveYear = true;
year = (wxDateTime_t)val;
}
if ( haveDay )
break;
- haveDay = TRUE;
+ haveDay = true;
day = (wxDateTime_t)val;
}
else if ( isMonth )
{
- haveMon = TRUE;
+ haveMon = true;
mon = (Month)(val - 1);
}
{
// 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;
+ day = (wxDateTime_t)(mon + 1);
+ haveDay = true;
}
else
{
mon = mon2;
- haveMon = TRUE;
+ haveMon = true;
}
else // not a valid month name
{
break;
}
- haveWDay = TRUE;
+ haveWDay = true;
}
else // not a valid weekday name
{
break;
}
- haveDay = TRUE;
+ haveDay = true;
day = (wxDateTime_t)(n + 1);
}
mon = (wxDateTime::Month)(day - 1);
// we're in the current year then
- if ( (year > 0) &&
- (unsigned)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
}
}
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
// %l milliseconds (000 - 999)
wxString wxTimeSpan::Format(const wxChar *format) const
{
- wxCHECK_MSG( format, _T(""), _T("NULL format in wxTimeSpan::Format") );
+ wxCHECK_MSG( format, wxEmptyString, _T("NULL format in wxTimeSpan::Format") );
wxString str;
str.Alloc(wxStrlen(format));
/* 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 */
{
wxDateTimeArray hol;
- holidays.Empty();
+ holidays.Clear();
- size_t count = ms_authorities.GetCount();
+ size_t count = ms_authorities.size();
for ( size_t nAuth = 0; nAuth < count; nAuth++ )
{
ms_authorities[nAuth]->DoGetHolidaysInRange(dtStart, dtEnd, hol);
holidays.Sort(wxDateTimeCompareFunc);
- return holidays.GetCount();
+ return holidays.size();
}
/* static */
/* static */
void wxDateTimeHolidayAuthority::AddAuthority(wxDateTimeHolidayAuthority *auth)
{
- ms_authorities.Add(auth);
+ ms_authorities.push_back(auth);
+}
+
+wxDateTimeHolidayAuthority::~wxDateTimeHolidayAuthority()
+{
+ // required here for Darwin
}
// ----------------------------------------------------------------------------
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);
+}
+
#endif // wxUSE_DATETIME
projects / wxWidgets.git / blobdiff