///////////////////////////////////////////////////////////////////////////////
-// Name: wx/datetime.h
+// Name: src/common/datetime.cpp
// Purpose: implementation of time/date related classes
// Author: Vadim Zeitlin
// Modified by:
// 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
// ----------------------------------------------------------------------------
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
- #pragma implementation "datetime.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __WINDOWS__
#include "wx/msw/wrapwin.h"
#include <winnls.h>
- #include <locale.h>
+ #ifndef __WXWINCE__
+ #include <locale.h>
+ #endif
#endif
#include "wx/datetime.h"
#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
#endif
#endif // !WX_TIMEZONE && !WX_GMTOFF_IN_TM
+#if (!defined(HAVE_LOCALTIME_R) || !defined(HAVE_GMTIME_R)) && wxUSE_THREADS && !defined(__WINDOWS__)
+static wxMutex timeLock;
+#endif
+
+#ifndef HAVE_LOCALTIME_R
+struct tm *wxLocaltime_r(const time_t* ticks, struct tm* temp)
+{
+#if wxUSE_THREADS && !defined(__WINDOWS__)
+ // No need to waste time with a mutex on windows since it's using
+ // thread local storage for localtime anyway.
+ wxMutexLocker locker(timeLock);
+#endif
+ memcpy(temp, localtime(ticks), sizeof(struct tm));
+ return temp;
+}
+#endif
+
+#ifndef HAVE_GMTIME_R
+struct tm *wxGmtime_r(const time_t* ticks, struct tm* temp)
+{
+#if wxUSE_THREADS && !defined(__WINDOWS__)
+ // No need to waste time with a mutex on windows since it's
+ // using thread local storage for gmtime anyway.
+ wxMutexLocker locker(timeLock);
+#endif
+ memcpy(temp, gmtime(ticks), sizeof(struct tm));
+ return temp;
+}
+#endif
+
// ----------------------------------------------------------------------------
// macros
// ----------------------------------------------------------------------------
// 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
// (i.e. JDN(Jan 1, 1970) = 2440587.5)
static const long EPOCH_JDN = 2440587l;
+// used only in asserts
+#ifdef __WXDEBUG__
// the date of JDN -0.5 (as we don't work with fractional parts, this is the
// reference date for us) is Nov 24, 4714BC
static const int JDN_0_YEAR = -4713;
static const int JDN_0_MONTH = wxDateTime::Nov;
static const int JDN_0_DAY = 24;
+#endif // __WXDEBUG__
// the constants used for JDN calculations
static const long JDN_OFFSET = 32046l;
static bool s_timezoneSet = false;
static long gmtoffset = LONG_MAX; // invalid timezone
- // ensure that the timezone variable is set by calling localtime
+ // ensure that the timezone variable is set by calling wxLocaltime_r
if ( !s_timezoneSet )
{
- // just call localtime() instead of figuring out whether this system
- // supports tzset(), _tzset() or something else
+ // 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;
- tm = localtime(&t);
+ tm = wxLocaltime_r(&t, &tmstruct);
s_timezoneSet = true;
// note that GMT offset is the opposite of time zone and so to return
- 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];
- if ( !wxStrftime(buf, WXSIZEOF(buf), format, tm) )
+ // 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
-// glibc2 doesn't define this in the headers unless _XOPEN_SOURCE is defined
-// which, unfortunately, wreaks havoc elsewhere
-#if defined(__GLIBC__) && (__GLIBC__ == 2)
+#if wxUSE_UNIX && !defined(HAVE_STRPTIME_DECL)
+ // configure detected that we had strptime() but not its declaration,
+ // provide it ourselves
extern "C" char *strptime(const char *, const char *, struct tm *);
#endif
wxDateTime::Month *month)
{
struct tm *tmNow = NULL;
+ struct tm tmstruct;
if ( *year == wxDateTime::Inv_Year )
{
- tmNow = wxDateTime::GetTmNow();
+ tmNow = wxDateTime::GetTmNow(&tmstruct);
*year = 1900 + tmNow->tm_year;
}
if ( *month == wxDateTime::Inv_Month )
{
if ( !tmNow )
- tmNow = wxDateTime::GetTmNow();
+ tmNow = wxDateTime::GetTmNow(&tmstruct);
*month = (wxDateTime::Month)tmNow->tm_mon;
}
return wd;
}
+/* static */
+struct tm *wxDateTime::GetTmNow(struct tm *tmstruct)
+{
+ time_t t = GetTimeNow();
+ return wxLocaltime_r(&t, tmstruct);
+}
+
// scans all digits (but no more than len) and returns the resulting number
static bool GetNumericToken(size_t len, const wxChar*& p, unsigned long *number)
{
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:
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;
+ 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
}
// ... 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;
+ 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
}
{
// try to guess from the time zone name
time_t t = time(NULL);
- struct tm *tm = localtime(&t);
+ struct tm tmstruct;
+ struct tm *tm = wxLocaltime_r(&t, &tmstruct);
wxString tz = CallStrftime(_T("%Z"), tm);
if ( tz == _T("WET") || tz == _T("WEST") )
_T("Invalid time in wxDateTime::Set()") );
// get the current date from system
- struct tm *tm = GetTmNow();
+ struct tm tmstruct;
+ struct tm *tm = GetTmNow(&tmstruct);
- wxDATETIME_CHECK( tm, _T("localtime() failed") );
+ wxDATETIME_CHECK( tm, _T("wxLocaltime_r() failed") );
// make a copy so it isn't clobbered by the call to mktime() below
struct tm tm1(*tm);
// EPOCH_JDN + 0.5
jdn -= EPOCH_JDN + 0.5;
- 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*MILLISECONDS_PER_DAY);
- m_time.Assign(jdn);
+ // JDNs always are in UTC, so we don't need any adjustments for time zone
return *this;
}
{
unsigned long ddt;
time_t ticks = GetTicks();
- struct tm *tm = localtime(&ticks);
+ struct tm tmstruct;
+ struct tm *tm = wxLocaltime_r(&ticks, &tmstruct);
long year = tm->tm_year;
year -= 80;
if ( time != (time_t)-1 )
{
// use C RTL functions
+ struct tm tmstruct;
tm *tm;
if ( tz.GetOffset() == -GetTimeZone() )
{
// we are working with local time
- tm = localtime(&time);
+ tm = wxLocaltime_r(&time, &tmstruct);
// should never happen
- wxCHECK_MSG( tm, Tm(), _T("localtime() failed") );
+ wxCHECK_MSG( tm, Tm(), _T("wxLocaltime_r() failed") );
}
else
{
if ( time >= 0 )
#endif
{
- tm = gmtime(&time);
+ tm = wxGmtime_r(&time, &tmstruct);
// should never happen
- wxCHECK_MSG( tm, Tm(), _T("gmtime() failed") );
+ wxCHECK_MSG( tm, Tm(), _T("wxGmtime_r() failed") );
}
else
{
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;
}
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)
{
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
time_t timet = GetTicks();
if ( timet != (time_t)-1 )
{
- tm *tm = localtime(&timet);
+ struct tm tmstruct;
+ tm *tm = wxLocaltime_r(&timet, &tmstruct);
- wxCHECK_MSG( tm, -1, _T("localtime() failed") );
+ wxCHECK_MSG( tm, -1, _T("wxLocaltime_r() failed") );
return tm->tm_isdst;
}
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));
}
if ( (time != (time_t)-1) && !wxStrstr(format, _T("%l")) )
{
// use strftime()
- tm *tm;
+ struct tm tmstruct;
+ struct tm *tm;
if ( tz.GetOffset() == -GetTimeZone() )
{
// we are working with local time
- tm = localtime(&time);
+ tm = wxLocaltime_r(&time, &tmstruct);
// should never happen
- wxCHECK_MSG( tm, wxEmptyString, _T("localtime() failed") );
+ wxCHECK_MSG( tm, wxEmptyString, _T("wxLocaltime_r() failed") );
}
else
{
if ( time >= 0 )
#endif
{
- tm = gmtime(&time);
+ tm = wxGmtime_r(&time, &tmstruct);
// should never happen
- wxCHECK_MSG( tm, wxEmptyString, _T("gmtime() failed") );
+ wxCHECK_MSG( tm, wxEmptyString, _T("wxGmtime_r() failed") );
}
else
{
}
}
#ifndef __WXWINCE__
- //Windows CE doesn't support strftime or wcsftime, so we use the generic implementation
+ //Windows CE doesn't support strftime or wcsftime, so we use the generic implementation
if ( tm )
{
return CallStrftime(format, tm);
// 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
{
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") );
- wxString strYear, strYear2;
+ wxString strYear, strYear2;
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!)
- wxString fmt = format;
- wxString replacement = (wxChar)-1;
- while ( fmt.Find(replacement) != wxNOT_FOUND )
- {
- replacement << (wxChar)-1;
- }
-
- wxString replacement2 = (wxChar)-2;
- while ( fmt.Find(replacement) != wxNOT_FOUND )
- {
- replacement << (wxChar)-2;
- }
-
- // replace all occurences of year with it
- bool wasReplaced = fmt.Replace(strYear, replacement) > 0;
- if ( !wasReplaced )
- wasReplaced = fmt.Replace(strYear2, replacement2) > 0;
+
+ // find four strings not occurring in format (this is surely
+ // not the optimal way of doing it... improvements welcome!)
+ wxString fmt2 = format;
+ wxString replacement,replacement2,replacement3,replacement4;
+ for (int rnr=1; rnr<5 ; rnr++) {
+ wxString r = (wxChar)-rnr;
+ while ( fmt2.Find(r) != wxNOT_FOUND )
+ {
+ r << (wxChar)-rnr;
+ }
+
+ 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;
+ // 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
: _T("%x"),
&tmAdjusted);
- // now replace the occurence of 1999 with the real year
+ // 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 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);
+ //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;
#ifndef __WXWINCE__
res += CallStrftime(_T("%p"), &tmTimeOnly);
#else
- res += (tmTimeOnly.tm_hour > 12) ? wxT("pm") : wxT("am");
+ res += (tmTimeOnly.tm_hour > 12) ? wxT("pm") : wxT("am");
#endif
break;
#ifndef __WXWINCE__
res += CallStrftime(_T("%X"), &tmTimeOnly);
#else
- res += wxString::Format(wxT("%02d:%02d:%02d"),tm.hour, tm.min, tm.sec);
+ res += wxString::Format(wxT("%02d:%02d:%02d"),tm.hour, tm.min, tm.sec);
#endif
break;
}
// 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;
}
// 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__
-// Get's current locale's date formatting string and stores it in fmt if
-// the locale is set; otherwise or in case of failure, leaves fmt unchanged
-void GetLocaleDateFormat(wxString *fmt)
+
+// 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
#else
LCID lcid = GetThreadLocale();
#endif
- wxChar delim[5]; // fields deliminer, 4 chars max
- if ( GetLocaleInfo(lcid, LOCALE_SDATE, delim, 5) )
+ // according to MSDN 80 chars is max allowed for short date format
+ wxChar fmt[81];
+ if ( ::GetLocaleInfo(lcid, LOCALE_SSHORTDATE, fmt, WXSIZEOF(fmt)) )
{
- wxChar centurybuf[2]; // use %y or %Y, 1 char max
- wxChar century = 'y';
- if ( GetLocaleInfo(lcid, LOCALE_ICENTURY, centurybuf, 2) )
- {
- if ( centurybuf[0] == _T('1') )
- century = 'Y';
- // else 'y' as above
- }
-
- wxChar order[2]; // order code, 1 char max
- if ( GetLocaleInfo(lcid, LOCALE_IDATE, order, 2) )
+ wxChar chLast = _T('\0');
+ size_t lastCount = 0;
+ for ( const wxChar *p = fmt; /* NUL handled inside */; p++ )
{
- if ( order[0] == _T('0') ) // M-D-Y
- {
- *fmt = wxString::Format(_T("%%m%s%%d%s%%%c"),
- delim, delim, century);
- }
- else if ( order[0] == _T('1') ) // D-M-Y
- {
- *fmt = wxString::Format(_T("%%d%s%%m%s%%%c"),
- delim, delim, century);
- }
- else if ( order[0] == _T('2') ) // Y-M-D
+ if ( *p == chLast )
{
- *fmt = wxString::Format(_T("%%%c%s%%m%s%%d"),
- century, delim, delim);
+ lastCount++;
+ continue;
}
- else
+
+ switch ( *p )
{
- wxFAIL_MSG(_T("unexpected GetLocaleInfo return value"));
+ // 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;
}
}
- // if we failed, leave fmtDate value unchanged and
- // try our luck with the default set above
+ //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,
hour = tm.hour;
min = tm.min;
}
+ break;
case _T('S'): // second as a decimal number (00-61)
if ( !GetNumericToken(width, input, &num) || (num > 61) )
{
wxDateTime dt;
-
- 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");
- }
+ 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:
- GetLocaleDateFormat(&fmtDate);
+ fmtDate = GetLocaleDateFormat();
+ if ( fmtDate.empty() )
#endif
+ {
+ 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);
for ( size_t n = 0; n < WXSIZEOF(literalDates); n++ )
{
- wxString date = wxGetTranslation(literalDates[n].str);
- size_t len = date.length();
+ const wxString dateStr = wxGetTranslation(literalDates[n].str);
+ size_t len = dateStr.length();
if ( wxStrlen(p) >= len )
{
wxString str(p, len);
- if ( str.CmpNoCase(date) == 0 )
+ if ( str.CmpNoCase(dateStr) == 0 )
{
// nothing can follow this, so stop here
p += len;
}
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 )
#include "wx/arrimpl.cpp"
-WX_DEFINE_OBJARRAY(wxDateTimeArray);
+WX_DEFINE_OBJARRAY(wxDateTimeArray)
static int wxCMPFUNC_CONV
wxDateTimeCompareFunc(wxDateTime **first, wxDateTime **second)
holidays.Clear();
- size_t count = ms_authorities.size();
- for ( size_t nAuth = 0; nAuth < count; nAuth++ )
+ const size_t countAuth = ms_authorities.size();
+ for ( size_t nAuth = 0; nAuth < countAuth; nAuth++ )
{
ms_authorities[nAuth]->DoGetHolidaysInRange(dtStart, dtEnd, hol);
projects / wxWidgets.git / blobdiff