Permission for flood-fill code clarified

[wxWidgets.git] / src / common / datetime.cpp

diff --git a/src/common/datetime.cpp b/src/common/datetime.cpp
index 1d85ebbbd81c3946803d88f400a6c7d950f6c97e..a042dd5947079c60ebd1195f8f005a958ec808b9 100644 (file)
--- a/src/common/datetime.cpp
+++ b/src/common/datetime.cpp
@@ -16,6 +16,10 @@
 // Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 // 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:
  *
 /*
  * Implementation notes:
  *


@@ -77,6 +81,14 @@
 
 #include <ctype.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/stopwatch.h"           // for wxGetLocalTimeMillis()
 
 #include "wx/datetime.h"
 #include "wx/stopwatch.h"           // for wxGetLocalTimeMillis()
 


@@ -115,12 +127,26 @@ wxCUSTOM_TYPE_INFO(wxDateTime, wxToStringConverter<wxDateTime> , wxFromStringCon
     #undef HAVE_STRPTIME
 #endif // broken strptime()
 
     #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(__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;
         #define WX_TIMEZONE _timezone
     #elif defined(__MWERKS__)
         long wxmw_timezone = 28800;


@@ -233,6 +259,9 @@ static const wxDateTime::wxDateTime_t gs_cumulatedDays[2][MONTHS_IN_YEAR] =
 // global data
 // ----------------------------------------------------------------------------
 
 // 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;
 // in the fine tradition of ANSI C we use our equivalent of (time_t)-1 to
 // indicate an invalid wxDateTime object
 const wxDateTime wxDefaultDateTime;


@@ -342,6 +371,7 @@ static long GetTruncatedJDN(wxDateTime::wxDateTime_t day,
             - JDN_OFFSET;
 }
 
             - JDN_OFFSET;
 }
 

+#ifndef __WXWINCE__

 // this function is a wrapper around strftime(3) adding error checking
 static wxString CallStrftime(const wxChar *format, const tm* tm)
 {
 // this function is a wrapper around strftime(3) adding error checking
 static wxString CallStrftime(const wxChar *format, const tm* tm)
 {


@@ -354,6 +384,7 @@ static wxString CallStrftime(const wxChar *format, const tm* tm)
 
     return wxString(buf);
 }
 
     return wxString(buf);
 }

+#endif

 
 #ifdef HAVE_STRPTIME
 
 
 #ifdef HAVE_STRPTIME
 


@@ -500,7 +531,7 @@ static bool GetNumericToken(size_t len, const wxChar*& p, unsigned long *number)
             break;
     }
 
             break;
     }
 

-    return !s.IsEmpty() && s.ToULong(number);
+    return !s.empty() && s.ToULong(number);

 }
 
 // scans all alphabetic characters and returns the resulting string
 }
 
 // scans all alphabetic characters and returns the resulting string


@@ -542,8 +573,8 @@ wxDateTime::Tm::Tm(const struct tm& tm, const TimeZone& tz)
     mday = (wxDateTime::wxDateTime_t)tm.tm_mday;
     mon = (wxDateTime::Month)tm.tm_mon;
     year = 1900 + tm.tm_year;
     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
 }
 
 bool wxDateTime::Tm::IsValid() const


@@ -559,7 +590,7 @@ void wxDateTime::Tm::ComputeWeekDay()
     // 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
     // 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)
 }
 
 void wxDateTime::Tm::AddMonths(int monDiff)


@@ -800,8 +831,8 @@ wxDateTime::wxDateTime_t wxDateTime::GetNumberOfDays(wxDateTime::Month month,
 wxString wxDateTime::GetMonthName(wxDateTime::Month month,
                                   wxDateTime::NameFlags flags)
 {
 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;
     // 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;


@@ -809,14 +840,57 @@ wxString wxDateTime::GetMonthName(wxDateTime::Month month,
     tm.tm_mon = month;
 
     return CallStrftime(flags == Name_Abbr ? _T("%b") : _T("%B"), &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)
 {
 }
 
 /* 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!)
     // 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!)


@@ -834,6 +908,35 @@ wxString wxDateTime::GetWeekDayName(wxDateTime::WeekDay wday,
 
     // ... and call strftime()
     return CallStrftime(flags == Name_Abbr ? _T("%a") : _T("%A"), &tm);
 
     // ... 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 */
 }
 
 /* static */


@@ -852,7 +955,7 @@ void wxDateTime::GetAmPmStrings(wxString *am, wxString *pm)
     // assert, even though it is a perfectly legal use.
     if ( am )
     {
     // 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();
             *am = wxString(buffer);
         else
             *am = wxString();


@@ -860,7 +963,7 @@ void wxDateTime::GetAmPmStrings(wxString *am, wxString *pm)
     if ( pm )
     {
         tm.tm_hour = 13;
     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();
             *pm = wxString(buffer);
         else
             *pm = wxString();


@@ -876,7 +979,7 @@ void wxDateTime::GetAmPmStrings(wxString *am, wxString *pm)
 wxDateTime::Country wxDateTime::GetCountry()
 {
     // TODO use LOCALE_ICOUNTRY setting under Win32
 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
     if ( ms_country == Country_Unknown )
     {
         // try to guess from the time zone name


@@ -910,6 +1013,9 @@ wxDateTime::Country wxDateTime::GetCountry()
             ms_country = USA;
         }
     }
             ms_country = USA;
         }
     }

+#else
+     ms_country = USA;
+#endif

 
     return ms_country;
 }
 
     return ms_country;
 }


@@ -1168,16 +1274,11 @@ wxDateTime& wxDateTime::Set(const struct tm& tm)
         // less than timezone - try to make it work for this case
         if ( tm2.tm_year == 70 && tm2.tm_mon == 0 && tm2.tm_mday == 1 )
         {
         // 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") );
         }
 
         wxFAIL_MSG( _T("mktime() failed") );


@@ -1210,12 +1311,21 @@ wxDateTime& wxDateTime::Set(wxDateTime_t hour,
 
     wxDATETIME_CHECK( tm, _T("localtime() 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
     // 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);
 
     // and finally adjust milliseconds
     return SetMillisecond(millisec);


@@ -1262,7 +1372,10 @@ wxDateTime& wxDateTime::Set(wxDateTime_t day,
         (void)Set(tm);
 
         // and finally adjust milliseconds
         (void)Set(tm);
 
         // and finally adjust milliseconds

-        return SetMillisecond(millisec);
+        if (IsValid())
+            SetMillisecond(millisec);
+
+        return *this;

     }
     else
     {
     }
     else
     {


@@ -1289,6 +1402,8 @@ wxDateTime& wxDateTime::Set(double jdn)
 
     jdn *= MILLISECONDS_PER_DAY;
 
 
     jdn *= MILLISECONDS_PER_DAY;
 

+    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();
     // JDNs always suppose an UTC date, so bring it back to local time zone
     // (also see GetJulianDayNumber() implementation)
     long tzDiff = GetTimeZone();


@@ -1298,9 +1413,7 @@ wxDateTime& wxDateTime::Set(double jdn)
         tzDiff -= 3600;
     }
 
         tzDiff -= 3600;
     }
 

-    jdn += tzDiff*1000; // tzDiff is in seconds
-
-    m_time.Assign(jdn);
+    m_time += tzDiff*1000; // tzDiff is in seconds

 
     return *this;
 }
 
     return *this;
 }


@@ -1721,8 +1834,9 @@ wxDateTime& wxDateTime::SetToWeekDayInSameWeek(WeekDay weekday, WeekFlags flags)
 {
     wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") );
 
 {
     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;
     {
         // nothing to do
         return *this;


@@ -1736,21 +1850,23 @@ wxDateTime& wxDateTime::SetToWeekDayInSameWeek(WeekDay weekday, WeekFlags flags)
     // 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
     // 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 ( 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
     }
     //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
     {
     }
     else // weekday > wdayThis
     {

-        return Add(wxDateSpan::Days(weekday - wdayThis));
+        return Add(wxDateSpan::Days(wdayDst - wdayThis));

     }
 }
 
     }
 }
 


@@ -2061,7 +2177,7 @@ wxDateTime& wxDateTime::MakeTimezone(const TimeZone& tz, bool noDST)
 
 wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
 {
 
 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
 
     // we have to use our own implementation if the date is out of range of
     // strftime() or if we use non standard specificators


@@ -2099,11 +2215,13 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
                 tm = (struct tm *)NULL;
             }
         }
                 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);
         }
         if ( tm )
         {
             return CallStrftime(format, tm);
         }

+#endif

         //else: use generic code below
     }
 
         //else: use generic code below
     }
 


@@ -2182,6 +2300,7 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
 
                 case _T('c'):       // locale default date and time  representation
                 case _T('x'):       // locale default date representation
 
                 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.
                     //
                     // the problem: there is no way to know what do these format
                     // specifications correspond to for the current locale.


@@ -2311,6 +2430,11 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
 
                         res += str;
                     }
 
                         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('d'):       // day of a month (01-31)


@@ -2347,7 +2471,11 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
                     break;
 
                 case _T('p'):       // AM or PM string
                     break;
 
                 case _T('p'):       // AM or PM string

+#ifndef __WXWINCE__

                     res += CallStrftime(_T("%p"), &tmTimeOnly);
                     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)
                     break;
 
                 case _T('S'):       // second as a decimal number (00-61)


@@ -2370,7 +2498,11 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
 
                 case _T('X'):       // locale default time representation
                     // just use strftime() to format the time for us
 
                 case _T('X'):       // locale default time representation
                     // just use strftime() to format the time for us

+#ifndef __WXWINCE__

                     res += CallStrftime(_T("%X"), &tmTimeOnly);
                     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('y'):       // year without century (00-99)


@@ -2382,7 +2514,9 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
                     break;
 
                 case _T('Z'):       // timezone name
                     break;
 
                 case _T('Z'):       // timezone name

+#ifndef __WXWINCE__

                     res += CallStrftime(_T("%Z"), &tmTimeOnly);
                     res += CallStrftime(_T("%Z"), &tmTimeOnly);

+#endif

                     break;
 
                 default:
                     break;
 
                 default:


@@ -2394,7 +2528,7 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
                         fmt += *p;
                     }
 
                         fmt += *p;
                     }
 

-                    if ( !fmt.IsEmpty() )
+                    if ( !fmt.empty() )

                     {
                         // we've only got the flags and width so far in fmt
                         fmt.Prepend(_T('%'));
                     {
                         // we've only got the flags and width so far in fmt
                         fmt.Prepend(_T('%'));


@@ -2620,7 +2754,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
     }
 
     // and now the interesting part: the timezone
     }
 
     // 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
     if ( *p == _T('-') || *p == _T('+') )
     {
         // the explicit offset given: it has the form of hhmm


@@ -2722,6 +2856,70 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
     return p;
 }
 
     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
+static void GetLocaleDateFormat(wxString *fmt)
+{
+    // 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
+        wxChar delim[5]; // fields deliminer, 4 chars max
+        if ( GetLocaleInfo(lcid, LOCALE_SDATE, delim, 5) )
+        {
+            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) )
+            {
+                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
+                {
+                    *fmt = wxString::Format(_T("%%%c%s%%m%s%%d"),
+                                            century, delim, delim);
+                }
+                else
+                {
+                    wxFAIL_MSG(_T("unexpected GetLocaleInfo return value"));
+                }
+            }
+        }
+        // if we failed, leave fmtDate value unchanged and
+        // try our luck with the default set above
+    }
+}
+
+#endif // __WINDOWS__
+

 const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                                       const wxChar *format,
                                       const wxDateTime& dateDef)
 const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                                       const wxChar *format,
                                       const wxDateTime& dateDef)


@@ -2966,7 +3164,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                     wxString am, pm, token = GetAlphaToken(input);
 
                     GetAmPmStrings(&am, &pm);
                     wxString am, pm, token = GetAlphaToken(input);
 
                     GetAmPmStrings(&am, &pm);

-                    if (am.IsEmpty() && pm.IsEmpty())
+                    if (am.empty() && pm.empty())

                         return (wxChar *)NULL;  // no am/pm strings defined
                     if ( token.CmpNoCase(pm) == 0 )
                     {
                         return (wxChar *)NULL;  // no am/pm strings defined
                     if ( token.CmpNoCase(pm) == 0 )
                     {


@@ -3015,6 +3213,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                     hour = tm.hour;
                     min = tm.min;
                 }
                     hour = tm.hour;
                     min = tm.min;
                 }

+                break;

 
             case _T('S'):       // second as a decimal number (00-61)
                 if ( !GetNumericToken(width, input, &num) || (num > 61) )
 
             case _T('S'):       // second as a decimal number (00-61)
                 if ( !GetNumericToken(width, input, &num) || (num > 61) )


@@ -3081,11 +3280,11 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                 }
 #endif // HAVE_STRPTIME
 
                 }
 #endif // HAVE_STRPTIME
 

-                // TODO query the LOCALE_IDATE setting under Win32

                 {
                     wxDateTime dt;
 
                     wxString fmtDate, fmtDateAlt;
                 {
                     wxDateTime dt;
 
                     wxString fmtDate, fmtDateAlt;

+

                     if ( IsWestEuropeanCountry(GetCountry()) ||
                          GetCountry() == Russia )
                     {
                     if ( IsWestEuropeanCountry(GetCountry()) ||
                          GetCountry() == Russia )
                     {


@@ -3098,6 +3297,12 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                         fmtDateAlt = _T("%d/%m/%y");
                     }
 
                         fmtDateAlt = _T("%d/%m/%y");
                     }
 

+#ifdef __WINDOWS__
+                    // The above doesn't work for all locales, try to query
+                    // Windows for the right way of formatting the date:
+                    GetLocaleDateFormat(&fmtDate);
+#endif
+

                     const wxChar *result = dt.ParseFormat(input, fmtDate);
 
                     if ( !result )
                     const wxChar *result = dt.ParseFormat(input, fmtDate);
 
                     if ( !result )


@@ -3463,14 +3668,14 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date)
                 }
                 else // may be either day or year
                 {
                 }
                 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?
                         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;
                     {
                         // no
                         isYear = true;


@@ -3792,10 +3997,25 @@ bool wxDateTime::IsWorkDay(Country WXUNUSED(country)) const
     return !wxDateTimeHolidayAuthority::IsHoliday(*this);
 }
 
     return !wxDateTimeHolidayAuthority::IsHoliday(*this);
 }
 

+// ============================================================================
+// wxDateSpan
+// ============================================================================
+
+wxDateSpan WXDLLIMPEXP_BASE operator*(int n, const wxDateSpan& ds)
+{
+    wxDateSpan ds1(ds);
+    return ds1.Multiply(n);
+}
+

 // ============================================================================
 // wxTimeSpan
 // ============================================================================
 
 // ============================================================================
 // 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
 // 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


@@ -3827,7 +4047,7 @@ enum TimeSpanPart
 //  %l          milliseconds (000 - 999)
 wxString wxTimeSpan::Format(const wxChar *format) const
 {
 //  %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));
 
     wxString str;
     str.Alloc(wxStrlen(format));


@@ -4030,6 +4250,11 @@ void wxDateTimeHolidayAuthority::AddAuthority(wxDateTimeHolidayAuthority *auth)
     ms_authorities.push_back(auth);
 }
 
     ms_authorities.push_back(auth);
 }
 

+wxDateTimeHolidayAuthority::~wxDateTimeHolidayAuthority()
+{
+    // required here for Darwin
+}
+

 // ----------------------------------------------------------------------------
 // wxDateTimeWorkDays
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // wxDateTimeWorkDays
 // ----------------------------------------------------------------------------


@@ -4075,4 +4300,46 @@ size_t wxDateTimeWorkDays::DoGetHolidaysInRange(const wxDateTime& dtStart,
     return holidays.GetCount();
 }
 
     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
 #endif // wxUSE_DATETIME