// 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:
*
#if !defined(wxUSE_DATETIME) || wxUSE_DATETIME
#ifndef WX_PRECOMP
+ #ifdef __WXMSW__
+ #include "wx/msw/wrapwin.h"
+ #endif
#include "wx/string.h"
#include "wx/log.h"
+ #include "wx/intl.h"
+ #include "wx/stopwatch.h" // for wxGetLocalTimeMillis()
+ #include "wx/module.h"
+ #include "wx/crt.h"
#endif // WX_PRECOMP
-#include "wx/intl.h"
#include "wx/thread.h"
#include "wx/tokenzr.h"
-#include "wx/module.h"
#include <ctype.h>
#ifdef __WINDOWS__
- #include "wx/msw/wrapwin.h"
#include <winnls.h>
#ifndef __WXWINCE__
#include <locale.h>
#endif
#include "wx/datetime.h"
-#include "wx/stopwatch.h" // for wxGetLocalTimeMillis()
const long wxDateTime::TIME_T_FACTOR = 1000l;
#include <wtime.h>
#endif
+// define a special symbol for VC8 instead of writing tests for 1400 repeatedly
+#ifdef __VISUALC__
+ #if __VISUALC__ >= 1400
+ #define __VISUALC8__
+ #endif
+#endif
+
#if !defined(WX_TIMEZONE) && !defined(WX_GMTOFF_IN_TM)
#if defined(__WXPALMOS__)
#define WX_GMTOFF_IN_TM
#define WX_TIMEZONE wxGetTimeZone()
#elif defined(__DARWIN__)
#define WX_GMTOFF_IN_TM
+ #elif defined(__WXWINCE__) && defined(__VISUALC8__)
+ // _timezone is not present in dynamic run-time library
+ #if 0
+ // Solution (1): use the function equivalent of _timezone
+ static long wxGetTimeZone()
+ {
+ static long s_Timezone = MAXLONG; // invalid timezone
+ if (s_Timezone == MAXLONG)
+ {
+ int t;
+ _get_timezone(& t);
+ s_Timezone = (long) t;
+ }
+ return s_Timezone;
+ }
+ #define WX_TIMEZONE wxGetTimeZone()
+ #elif 1
+ // Solution (2): using GetTimeZoneInformation
+ static long wxGetTimeZone()
+ {
+ static long timezone = MAXLONG; // invalid timezone
+ if (timezone == MAXLONG)
+ {
+ TIME_ZONE_INFORMATION tzi;
+ ::GetTimeZoneInformation(&tzi);
+ timezone = tzi.Bias;
+ }
+ return timezone;
+ }
+ #define WX_TIMEZONE wxGetTimeZone()
+ #else
+ // Old method using _timezone: this symbol doesn't exist in the dynamic run-time library (i.e. using /MD)
+ #define WX_TIMEZONE _timezone
+ #endif
#else // unknown platform - try timezone
#define WX_TIMEZONE timezone
#endif
#endif // !WX_TIMEZONE && !WX_GMTOFF_IN_TM
+// everyone has strftime except Win CE unless VC8 is used
+#if !defined(__WXWINCE__) || defined(__VISUALC8__)
+ #define HAVE_STRFTIME
+#endif
+
+// NB: VC8 safe time functions could/should be used for wxMSW as well probably
+#if defined(__WXWINCE__) && defined(__VISUALC8__)
+
+struct tm *wxLocaltime_r(const time_t *t, struct tm* tm)
+{
+ __time64_t t64 = *t;
+ return _localtime64_s(tm, &t64) == 0 ? tm : NULL;
+}
+
+struct tm *wxGmtime_r(const time_t* t, struct tm* tm)
+{
+ __time64_t t64 = *t;
+ return _gmtime64_s(tm, &t64) == 0 ? tm : NULL;
+}
+
+#else // !wxWinCE with VC8
+
#if (!defined(HAVE_LOCALTIME_R) || !defined(HAVE_GMTIME_R)) && wxUSE_THREADS && !defined(__WINDOWS__)
static wxMutex timeLock;
#endif
// thread local storage for localtime anyway.
wxMutexLocker locker(timeLock);
#endif
- memcpy(temp, localtime(ticks), sizeof(struct tm));
+
+ // Borland CRT crashes when passed 0 ticks for some reason, see SF bug 1704438
+#ifdef __BORLANDC__
+ if ( !*ticks )
+ return NULL;
+#endif
+
+ const tm * const t = localtime(ticks);
+ if ( !t )
+ return NULL;
+
+ memcpy(temp, t, sizeof(struct tm));
return temp;
}
-#endif
+#endif // !HAVE_LOCALTIME_R
#ifndef HAVE_GMTIME_R
struct tm *wxGmtime_r(const time_t* ticks, struct tm* temp)
// using thread local storage for gmtime anyway.
wxMutexLocker locker(timeLock);
#endif
+
+#ifdef __BORLANDC__
+ if ( !*ticks )
+ return NULL;
+#endif
+
+ const tm * const t = gmtime(ticks);
+ if ( !t )
+ return NULL;
+
memcpy(temp, gmtime(ticks), sizeof(struct tm));
return temp;
}
-#endif
+#endif // !HAVE_GMTIME_R
+
+#endif // wxWinCE with VC8/other platforms
// ----------------------------------------------------------------------------
// macros
// (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
- JDN_OFFSET;
}
-#ifndef __WXWINCE__
+#ifdef HAVE_STRFTIME
+
// this function is a wrapper around strftime(3) adding error checking
-static wxString CallStrftime(const wxChar *format, const tm* tm)
+static wxString CallStrftime(const wxString& format, const tm* tm)
{
wxChar buf[4096];
// Create temp wxString here to work around mingw/cygwin bug 1046059
s = buf;
return s;
}
-#endif
+
+#endif // HAVE_STRFTIME
#ifdef HAVE_STRPTIME
// 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::wxDateTime_t)((wxDateTime::WeekDay)(GetTruncatedJDN(mday, mon, year) + 2) % 7);
+ wday = (wxDateTime::wxDateTime_t)((GetTruncatedJDN(mday, mon, year) + 2) % 7);
}
void wxDateTime::Tm::AddMonths(int monDiff)
case wxDateTime::GMT10:
case wxDateTime::GMT11:
case wxDateTime::GMT12:
+ case wxDateTime::GMT13:
m_offset = 3600*(tz - wxDateTime::GMT0);
break;
wxDateTime::NameFlags flags)
{
wxCHECK_MSG( month != Inv_Month, wxEmptyString, _T("invalid month") );
-#ifndef __WXWINCE__
+#ifdef HAVE_STRFTIME
// 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
+#else // !HAVE_STRFTIME
wxString ret;
switch(month)
{
break;
}
return ret;
-#endif
+#endif // HAVE_STRFTIME/!HAVE_STRFTIME
}
/* static */
wxDateTime::NameFlags flags)
{
wxCHECK_MSG( wday != Inv_WeekDay, wxEmptyString, _T("invalid weekday") );
-#ifndef __WXWINCE__
+#ifdef HAVE_STRFTIME
// 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
+#else // !HAVE_STRFTIME
wxString ret;
switch(wday)
{
break;
}
return ret;
-
-#endif
+#endif // HAVE_STRFTIME/!HAVE_STRFTIME
}
/* static */
ms_country = USA;
}
}
-#else
+#else // __WXWINCE__
ms_country = USA;
-#endif
+#endif // !__WXWINCE__/__WXWINCE__
return ms_country;
}
}
dt += wxTimeSpan::Hours(1);
-
- // disable DST tests because it could result in an infinite recursion!
- dt.MakeGMT(true);
}
else switch ( country )
{
}
dt += wxTimeSpan::Hours(1);
-
- // disable DST tests because it could result in an infinite recursion!
- dt.MakeGMT(true);
}
else switch ( country )
{
return *this;
}
+wxDateTime wxDateTime::GetDateOnly() const
+{
+ Tm tm = GetTm();
+ tm.msec =
+ tm.sec =
+ tm.min =
+ tm.hour = 0;
+ return wxDateTime(tm);
+}
+
// ----------------------------------------------------------------------------
// DOS Date and Time Format functions
// ----------------------------------------------------------------------------
time_t ticks = GetTicks();
struct tm tmstruct;
struct tm *tm = wxLocaltime_r(&ticks, &tmstruct);
+ wxCHECK_MSG( tm, ULONG_MAX, _T("time can't be represented in DOS format") );
long year = tm->tm_year;
year -= 80;
// wxDateTime to/from text representations
// ----------------------------------------------------------------------------
-wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
+wxString wxDateTime::Format(const wxString& format, const TimeZone& tz) const
{
- wxCHECK_MSG( format, wxEmptyString, _T("NULL format in wxDateTime::Format") );
+ wxCHECK_MSG( !format.empty(), 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
+#ifdef HAVE_STRFTIME
time_t time = GetTicks();
+
if ( (time != (time_t)-1) && !wxStrstr(format, _T("%l")) )
{
// use strftime()
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
}
+ //else: use generic code below
+#endif // HAVE_STRFTIME
// we only parse ANSI C format specifications here, no POSIX 2
// complications, no GNU extensions but we do add support for a "%l" format
tmTimeOnly.tm_isdst = 0; // no DST, we adjust for tz ourselves
wxString tmp, res, fmt;
- for ( const wxChar *p = format; *p; p++ )
+ for ( wxString::const_iterator p = format.begin(); p != format.end(); ++p )
{
if ( *p != _T('%') )
{
}
// set the default format
- switch ( *++p )
+ switch ( (*++p).GetValue() )
{
case _T('Y'): // year has 4 digits
fmt = _T("%04d");
restart = false;
// start of the format specification
- switch ( *p )
+ switch ( (*p).GetValue() )
{
case _T('a'): // a weekday name
case _T('A'):
case _T('c'): // locale default date and time representation
case _T('x'): // locale default date representation
-#ifndef __WXWINCE__
+#ifdef HAVE_STRFTIME
//
// the problem: there is no way to know what do these format
// specifications correspond to for the current locale.
// will change if one of these years is leap and the other one
// is not!
{
- // find the YEAR: normally, for any year X, Jan 1 or the
+ // find the YEAR: normally, for any year X, Jan 1 of the
// year X + 28 is the same weekday as Jan 1 of X (because
// the weekday advances by 1 for each normal X and by 2
// for each leap X, hence by 5 every 4 years or by 35
{
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,
+
+ // finally move the year below 2000 so that the 2-digit
+ // year number can never match the month or day of the
+ // month when we do the replacements below
+ if ( year >= 2000 )
+ year -= 28;
+
+ wxASSERT_MSG( year >= 1970 && year < 2000,
_T("logic error in wxDateTime::Format") );
- wxString strYear, strYear2;
- strYear.Printf(_T("%d"), year);
- strYear2.Printf(_T("%d"), year % 100);
-
- // 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 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, replacement3);
- str.Replace(strYear2,replacement4);
- str.Replace(replacement3, strYearReal);
- str.Replace(replacement4, strYearReal2);
-
- // and replace back all occurrences of replacement string
- if ( wasReplaced )
- {
- str.Replace(replacement2, strYear2);
- str.Replace(replacement, strYear);
- }
+ // now replace the replacement year with the real year:
+ // notice that we have to replace the 4 digit year with
+ // a unique string not appearing in strftime() output
+ // first to prevent the 2 digit year from matching any
+ // substring of the 4 digit year (but any day, month,
+ // hours or minutes components should be safe because
+ // they are never in 70-99 range)
+ wxString replacement("|");
+ while ( str.find(replacement) != wxString::npos )
+ replacement += '|';
+
+ str.Replace(wxString::Format("%d", year),
+ replacement);
+ str.Replace(wxString::Format("%d", year % 100),
+ wxString::Format("%d", yearReal % 100));
+ str.Replace(replacement,
+ wxString::Format("%d", yearReal));
res += str;
}
-#else
- //Use "%m/%d/%y %H:%M:%S" format instead
+#else // !HAVE_STRFTIME
+ // 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
+#endif // HAVE_STRFTIME/!HAVE_STRFTIME
break;
case _T('d'): // day of a month (01-31)
break;
case _T('p'): // AM or PM string
-#ifndef __WXWINCE__
+#ifdef HAVE_STRFTIME
res += CallStrftime(_T("%p"), &tmTimeOnly);
-#else
+#else // !HAVE_STRFTIME
res += (tmTimeOnly.tm_hour > 12) ? wxT("pm") : wxT("am");
-#endif
+#endif // HAVE_STRFTIME/!HAVE_STRFTIME
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__
+#ifdef HAVE_STRFTIME
res += CallStrftime(_T("%X"), &tmTimeOnly);
-#else
+#else // !HAVE_STRFTIME
res += wxString::Format(wxT("%02d:%02d:%02d"),tm.hour, tm.min, tm.sec);
-#endif
+#endif // HAVE_STRFTIME/!HAVE_STRFTIME
break;
case _T('y'): // year without century (00-99)
break;
case _T('Z'): // timezone name
-#ifndef __WXWINCE__
+#ifdef HAVE_STRFTIME
res += CallStrftime(_T("%Z"), &tmTimeOnly);
#endif
break;
#endif // __WINDOWS__
const wxChar *wxDateTime::ParseFormat(const wxChar *date,
- const wxChar *format,
+ const wxString& format,
const wxDateTime& dateDef)
{
- wxCHECK_MSG( date && format, (wxChar *)NULL,
+ wxCHECK_MSG( date && !format.empty(), (wxChar *)NULL,
_T("NULL pointer in wxDateTime::ParseFormat()") );
wxString str;
int year = 0;
const wxChar *input = date;
- for ( const wxChar *fmt = format; *fmt; fmt++ )
+ for ( wxString::const_iterator fmt = format.begin(); fmt != format.end(); ++fmt )
{
if ( *fmt != _T('%') )
{
// the default widths for the various fields
if ( !width )
{
- switch ( *fmt )
+ switch ( (*fmt).GetValue() )
{
case _T('Y'): // year has 4 digits
width = 4;
}
// then the format itself
- switch ( *fmt )
+ switch ( (*fmt).GetValue() )
{
case _T('a'): // a weekday name
case _T('A'):
// some special cases
static struct
{
- const wxChar *str;
+ const char *str;
int dayDiffFromToday;
} literalDates[] =
{
else // not a valid weekday name
{
// try the ordinals
- static const wxChar *ordinals[] =
+ static const char *ordinals[] =
{
wxTRANSLATE("first"),
wxTRANSLATE("second"),
// first try some extra things
static const struct
{
- const wxChar *name;
+ const char *name;
wxDateTime_t hour;
} stdTimes[] =
{
// And, to be better than MFC :-), we also have
// %E number of wEeks
// %l milliseconds (000 - 999)
-wxString wxTimeSpan::Format(const wxChar *format) const
+wxString wxTimeSpan::Format(const wxString& format) const
{
- wxCHECK_MSG( format, wxEmptyString, _T("NULL format in wxTimeSpan::Format") );
+ wxCHECK_MSG( !format.empty(), wxEmptyString,
+ _T("NULL format in wxTimeSpan::Format") );
wxString str;
- str.Alloc(wxStrlen(format));
+ str.Alloc(format.length());
// Suppose we have wxTimeSpan ts(1 /* hour */, 2 /* min */, 3 /* sec */)
//
// we remember the most important unit found so far
TimeSpanPart partBiggest = Part_MSec;
- for ( const wxChar *pch = format; *pch; pch++ )
+ for ( wxString::const_iterator pch = format.begin(); pch != format.end(); ++pch )
{
wxChar ch = *pch;
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