#ifndef WX_PRECOMP
#include "wx/string.h"
#include "wx/log.h"
+ #include "wx/intl.h"
+ #include "wx/stopwatch.h" // for wxGetLocalTimeMillis()
#endif // WX_PRECOMP
-#include "wx/intl.h"
#include "wx/thread.h"
#include "wx/tokenzr.h"
#include "wx/module.h"
#endif
#include "wx/datetime.h"
-#include "wx/stopwatch.h" // for wxGetLocalTimeMillis()
const long wxDateTime::TIME_T_FACTOR = 1000l;
// ----------------------------------------------------------------------------
// debugging helper: just a convenient replacement of wxCHECK()
-#define wxDATETIME_CHECK(expr, msg) \
- if ( !(expr) ) \
- { \
- wxFAIL_MSG(msg); \
- *this = wxInvalidDateTime; \
- return *this; \
- }
+#define wxDATETIME_CHECK(expr, msg) \
+ wxCHECK2_MSG(expr, *this = wxInvalidDateTime; return *this, msg)
// ----------------------------------------------------------------------------
// private classes
// (in seconds)
static int GetTimeZone()
{
-#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
// just call wxLocaltime_r() instead of figuring out whether this
// system supports tzset(), _tzset() or something else
time_t t = 0;
- struct tm *tm;
- struct tm tmstruct;
+ struct tm tm;
- tm = wxLocaltime_r(&t, &tmstruct);
+ wxLocaltime_r(&t, &tm);
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;
+ gmtoffset = -tm.tm_gmtoff;
+#else // !WX_GMTOFF_IN_TM
+ gmtoffset = WX_TIMEZONE;
+#endif // WX_GMTOFF_IN_TM/!WX_GMTOFF_IN_TM
}
return (int)gmtoffset;
-#else // !WX_GMTOFF_IN_TM
- return (int)WX_TIMEZONE;
-#endif // WX_GMTOFF_IN_TM/!WX_GMTOFF_IN_TM
}
// return the integral part of the JDN for the midnight of the given date (to
return dt;
}
+#if WXWIN_COMPATIBILITY_2_6
// use a separate function to avoid warnings about using deprecated
// SetToTheWeek in GetWeek below
static wxDateTime
{
return ::SetToTheWeek(GetYear(), numWeek, weekday, flags);
}
+#endif // WXWIN_COMPATIBILITY_2_6
wxDateTime& wxDateTime::SetToLastMonthDay(Month month,
int year)
nLostWeekDays += year++ % 4 ? 1 : 2;
}
+ // Keep year below 2000 so the 2digit year number
+ // can never match the month or day of the month
+ if (year>=2000) year-=28;
// at any rate, we couldn't go further than 1988 + 9 + 28!
wxASSERT_MSG( year < 2030,
_T("logic error in wxDateTime::Format") );
strYear.Printf(_T("%d"), year);
strYear2.Printf(_T("%d"), year % 100);
- // find two strings not occurring in format (this is surely
+ // find four strings not occurring in format (this is surely
// not the optimal way of doing it... improvements welcome!)
wxString fmt2 = format;
- wxString replacement = (wxChar)-1;
- while ( fmt2.Find(replacement) != wxNOT_FOUND )
+ wxString replacement,replacement2,replacement3,replacement4;
+ for (int rnr=1; rnr<5 ; rnr++)
{
- replacement << (wxChar)-1;
- }
+ wxString r = (wxChar)-rnr;
+ while ( fmt2.Find(r) != wxNOT_FOUND )
+ {
+ r << (wxChar)-rnr;
+ }
- wxString replacement2 = (wxChar)-2;
- while ( fmt2.Find(replacement) != wxNOT_FOUND )
- {
- replacement << (wxChar)-2;
+ switch (rnr)
+ {
+ case 1: replacement=r; break;
+ case 2: replacement2=r; break;
+ case 3: replacement3=r; break;
+ case 4: replacement4=r; break;
+ }
}
-
// replace all occurrences of year with it
bool wasReplaced = fmt2.Replace(strYear, replacement) > 0;
- if ( !wasReplaced )
- wasReplaced = fmt2.Replace(strYear2, replacement2) > 0;
+ // evaluation order ensures we always attempt the replacement.
+ wasReplaced = (fmt2.Replace(strYear2, replacement2) > 0) | wasReplaced ;
// use strftime() to format the same date but in supported
// year
&tmAdjusted);
// now replace the occurrence of 1999 with the real year
+ // we do this in two stages to stop the 2 digit year
+ // matching any substring of the 4 digit year.
+ // Any day,month hours and minutes components should be safe due
+ // to ensuring the range of the years.
wxString strYearReal, strYearReal2;
strYearReal.Printf(_T("%04d"), yearReal);
strYearReal2.Printf(_T("%02d"), yearReal % 100);
- str.Replace(strYear, strYearReal);
- str.Replace(strYear2, strYearReal2);
+ str.Replace(strYear, replacement3);
+ str.Replace(strYear2,replacement4);
+ str.Replace(replacement3, strYearReal);
+ str.Replace(replacement4, strYearReal2);
// and replace back all occurrences of replacement string
if ( wasReplaced )
}
else // may be either day or year
{
+ // 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 : Inv_Year, mon)
+ ? GetNumOfDaysInMonth(haveYear ? year : 1976, mon)
: 31
);
{
wxLogDebug(_T("ParseDate: no day, no weekday hence no date."));
- return (wxChar *)NULL;
+ return NULL;
}
if ( haveWDay && (haveMon || haveYear || haveDay) &&
// 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) )
// 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;
}
}
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 )
if ( ch == _T('%') )
{
// the start of the format specification of the printf() below
- wxString fmtPrefix = _T('%');
+ 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 )
{
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;
}
- fmtPrefix += _T("02");
+ digits = 2;
break;
case _T('l'):
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
- fmtPrefix += _T("03");
+ digits = 3;
break;
case _T('M'):
n = GetMinutes();
if ( partBiggest < Part_Min )
{
+ if ( n < 0 )
+ n = -n;
+
n %= MIN_PER_HOUR;
}
else
partBiggest = Part_Min;
}
- fmtPrefix += _T("02");
+ digits = 2;
break;
case _T('S'):
n = GetSeconds().ToLong();
if ( partBiggest < Part_Sec )
{
+ if ( n < 0 )
+ n = -n;
+
n %= SEC_PER_MIN;
}
else
partBiggest = Part_Sec;
}
- fmtPrefix += _T("02");
+ digits = 2;
break;
}
+ if ( digits )
+ {
+ // negative numbers need one extra position for '-' display
+ if ( n < 0 )
+ digits++;
+
+ fmtPrefix << _T("0") << digits;
+ }
+
str += wxString::Format(fmtPrefix + _T("ld"), n);
}
else
projects / wxWidgets.git / blobdiff