// 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:
*
#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/stopwatch.h" // for wxGetLocalTimeMillis()
#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;
- JDN_OFFSET;
}
+#ifndef __WXWINCE__
// this function is a wrapper around strftime(3) adding error checking
static wxString CallStrftime(const wxChar *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?
wxFAIL_MSG(_T("strftime() failed"));
}
- return wxString(buf);
+ s = buf;
+ return s;
}
+#endif
#ifdef HAVE_STRPTIME
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:
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") );
-
+ 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!)
// ... 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 */
// assert, even though it is a perfectly legal use.
if ( am )
{
- if (wxStrftime(buffer, sizeof buffer, _T("%p"), &tm) > 0)
+ if (wxStrftime(buffer, sizeof(buffer)/sizeof(wxChar), _T("%p"), &tm) > 0)
*am = wxString(buffer);
else
*am = wxString();
if ( pm )
{
tm.tm_hour = 13;
- if (wxStrftime(buffer, sizeof buffer, _T("%p"), &tm) > 0)
+ 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;
}
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;
// and the DST in case it changes on this date
- struct tm tm2(*tm);
+ struct tm tm2(tm1);
mktime(&tm2);
- if ( tm2.tm_isdst != tm->tm_isdst )
- tm->tm_isdst = tm2.tm_isdst;
+ 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);
// EPOCH_JDN + 0.5
jdn -= EPOCH_JDN + 0.5;
- jdn *= MILLISECONDS_PER_DAY;
+ m_time.Assign(jdn*MILLISECONDS_PER_DAY);
- // 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;
- }
-
- jdn += tzDiff*1000; // tzDiff is in seconds
-
- m_time.Assign(jdn);
+ // JDNs always are in UTC, so we don't need any adjustments for time zone
return *this;
}
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;
}
{
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));
}
}
double wxDateTime::GetJulianDayNumber() const
{
- // JDN are always expressed for the UTC dates
- Tm tm(ToTimezone(UTC).GetTm(UTC));
-
- 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
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));
}
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
}
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.
// 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
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!)
+ // find two strings not occurring in format (this is surely
+ // not the optimal way of doing it... improvements welcome!)
wxString fmt = format;
wxString replacement = (wxChar)-1;
while ( fmt.Find(replacement) != wxNOT_FOUND )
replacement << (wxChar)-2;
}
- // replace all occurences of year with it
+ // replace all occurrences of year with it
bool wasReplaced = fmt.Replace(strYear, replacement) > 0;
if ( !wasReplaced )
wasReplaced = fmt.Replace(strYear2, replacement2) > 0;
: _T("%x"),
&tmAdjusted);
- // now replace the occurence of 1999 with the real year
+ // now replace the occurrence 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
+ // and replace back all occurrences of replacement string
if ( wasReplaced )
{
str.Replace(replacement2, strYear2);
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:
}
// 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
}
// 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;
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((wxDateTime_t)(offset*SEC_PER_MIN)));
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)
hour = tm.hour;
min = tm.min;
}
+ break;
case _T('S'): // second as a decimal number (00-61)
if ( !GetNumericToken(width, input, &num) || (num > 61) )
}
#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);
}
else // may be either day or year
{
- wxDateTime_t maxDays = (wxDateTime_t)(
+ wxDateTime_t max_days = (wxDateTime_t)(
haveMon
? GetNumOfDaysInMonth(haveYear ? year : Inv_Year, mon)
: 31
);
// can it be day?
- if ( (val == 0) || (val > (unsigned long)maxDays) )
+ if ( (val == 0) || (val > (unsigned long)max_days) )
{
// no
isYear = true;
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));
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