Fix linking problems with MSVC 5.

[wxWidgets.git] / include / wx / datetime.h

diff --git a/include/wx/datetime.h b/include/wx/datetime.h
index 688b2debf4192b90b632494796a0edea13aa11d3..35a164dd3a5bed502e6999d38d1eea1262574663 100644 (file)
--- a/include/wx/datetime.h
+++ b/include/wx/datetime.h
@@ -13,10 +13,14 @@
 #ifndef _WX_DATETIME_H
 #define _WX_DATETIME_H
 
 #ifndef _WX_DATETIME_H
 #define _WX_DATETIME_H
 

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(__APPLE__)

     #pragma interface "datetime.h"
 #endif
 
     #pragma interface "datetime.h"
 #endif
 

+#include "wx/defs.h"
+
+#if wxUSE_DATETIME
+

 #include <time.h>
 #include <limits.h>             // for INT_MIN
 
 #include <time.h>
 #include <limits.h>             // for INT_MIN
 


@@ -26,16 +30,35 @@ class WXDLLEXPORT wxDateTime;
 class WXDLLEXPORT wxTimeSpan;
 class WXDLLEXPORT wxDateSpan;
 
 class WXDLLEXPORT wxTimeSpan;
 class WXDLLEXPORT wxDateSpan;
 

-// don't use inline functions in debug builds - we don't care about
+// a hack: don't use inline functions in debug builds - we don't care about

 // performances and this only leads to increased rebuild time (because every
 // time an inline method is changed, all files including the header must be
 // rebuilt)
 // performances and this only leads to increased rebuild time (because every
 // time an inline method is changed, all files including the header must be
 // rebuilt)

-// For Mingw32, causes a link error.
+
+// For Mingw32, causes a link error. (VZ: why?)

 #if defined( __WXDEBUG__) && !defined(__MINGW32__)
 #if defined( __WXDEBUG__) && !defined(__MINGW32__)

+    #define wxDATETIME_DONT_INLINE
+

     #undef inline
     #define inline
     #undef inline
     #define inline

+#else
+    // just in case
+    #undef wxDATETIME_DONT_INLINE

 #endif // Debug
 
 #endif // Debug
 

+// not all c-runtimes are based on 1/1/1970 being (time_t) 0
+// set this to the corresponding value in seconds 1/1/1970 has on your
+// systems c-runtime
+
+#ifdef __WXMAC__
+#if __MSL__ < 0x6000
+    #define WX_TIME_BASE_OFFSET ( 2082844800L + 126144000L )
+#else
+    #define WX_TIME_BASE_OFFSET 0
+#endif
+#else
+    #define WX_TIME_BASE_OFFSET 0
+#endif

 /*
  * TODO
  *
 /*
  * TODO
  *


@@ -100,7 +123,7 @@ class WXDLLEXPORT wxDateSpan;
 // wxInvalidDateTime)
 class WXDLLEXPORT wxDateTime;
 
 // wxInvalidDateTime)
 class WXDLLEXPORT wxDateTime;
 

-WXDLLEXPORT_DATA(extern wxDateTime&) wxDefaultDateTime;
+WXDLLEXPORT_DATA(extern const wxDateTime) wxDefaultDateTime;

 #define wxInvalidDateTime wxDefaultDateTime
 
 // ----------------------------------------------------------------------------
 #define wxInvalidDateTime wxDefaultDateTime
 
 // ----------------------------------------------------------------------------


@@ -526,7 +549,7 @@ public:
     // ------------------------------------------------------------------------
 
         // default ctor does not initialize the object, use Set()!
     // ------------------------------------------------------------------------
 
         // default ctor does not initialize the object, use Set()!

-    wxDateTime() { }
+    wxDateTime() { m_time = wxLongLong((long)ULONG_MAX, ULONG_MAX); }

 
         // from time_t: seconds since the Epoch 00:00:00 UTC, Jan 1, 1970)
 #if (!(defined(__VISAGECPP__) && __IBMCPP__ >= 400))
 
         // from time_t: seconds since the Epoch 00:00:00 UTC, Jan 1, 1970)
 #if (!(defined(__VISAGECPP__) && __IBMCPP__ >= 400))


@@ -548,7 +571,7 @@ public:
                       wxDateTime_t millisec = 0);
         // from separate values for each component with explicit date
     inline wxDateTime(wxDateTime_t day,             // day of the month
                       wxDateTime_t millisec = 0);
         // from separate values for each component with explicit date
     inline wxDateTime(wxDateTime_t day,             // day of the month

-                      Month        month = Inv_Month,
+                      Month        month,

                       int          year = Inv_Year, // 1999, not 99 please!
                       wxDateTime_t hour = 0,
                       wxDateTime_t minute = 0,
                       int          year = Inv_Year, // 1999, not 99 please!
                       wxDateTime_t hour = 0,
                       wxDateTime_t minute = 0,


@@ -591,7 +614,7 @@ public:
         // from separate values for each component with explicit date
         // (defaults for month and year are the current values)
     wxDateTime& Set(wxDateTime_t day,
         // from separate values for each component with explicit date
         // (defaults for month and year are the current values)
     wxDateTime& Set(wxDateTime_t day,

-                    Month        month = Inv_Month,
+                    Month        month,

                     int          year = Inv_Year, // 1999, not 99 please!
                     wxDateTime_t hour = 0,
                     wxDateTime_t minute = 0,
                     int          year = Inv_Year, // 1999, not 99 please!
                     wxDateTime_t hour = 0,
                     wxDateTime_t minute = 0,


@@ -636,8 +659,10 @@ public:
     // ------------------------------------------------------------------------
 
         // set to the given week day in the same week as this one
     // ------------------------------------------------------------------------
 
         // set to the given week day in the same week as this one

-    wxDateTime& SetToWeekDayInSameWeek(WeekDay weekday);
-    inline wxDateTime GetWeekDayInSameWeek(WeekDay weekday) const;
+    wxDateTime& SetToWeekDayInSameWeek(WeekDay weekday,
+                                       WeekFlags flags = Monday_First);
+    inline wxDateTime GetWeekDayInSameWeek(WeekDay weekday,
+                                           WeekFlags flags = Monday_First) const;

 
         // set to the next week day following this one
     wxDateTime& SetToNextWeekDay(WeekDay weekday);
 
         // set to the next week day following this one
     wxDateTime& SetToNextWeekDay(WeekDay weekday);


@@ -671,8 +696,12 @@ public:
         // sets the date to the given day of the given week in the year,
         // returns TRUE on success and FALSE if given date doesn't exist (e.g.
         // numWeek is > 53)
         // sets the date to the given day of the given week in the year,
         // returns TRUE on success and FALSE if given date doesn't exist (e.g.
         // numWeek is > 53)

-    bool SetToTheWeek(wxDateTime_t numWeek, WeekDay weekday = Mon);
-    inline wxDateTime GetWeek(wxDateTime_t numWeek, WeekDay weekday = Mon) const;
+    bool SetToTheWeek(wxDateTime_t numWeek,
+                      WeekDay weekday = Mon,
+                      WeekFlags flags = Monday_First);
+    inline wxDateTime GetWeek(wxDateTime_t numWeek,
+                              WeekDay weekday = Mon,
+                              WeekFlags flags = Monday_First) const;

 
         // sets the date to the last day of the given (or current) month or the
         // given (or current) year
 
         // sets the date to the last day of the given (or current) month or the
         // given (or current) year


@@ -760,8 +789,8 @@ public:
     // result of timezone shift)
     // ------------------------------------------------------------------------
 
     // result of timezone shift)
     // ------------------------------------------------------------------------
 

-        // is the date valid (TRUE even for non initialized objects)?
-    inline bool IsValid() const { return this != &wxInvalidDateTime; }
+        // is the date valid?
+    inline bool IsValid() const { return m_time != wxInvalidDateTime.m_time; }

 
         // get the broken down date/time representation in the given timezone
         //
 
         // get the broken down date/time representation in the given timezone
         //


@@ -822,6 +851,15 @@ public:
         //     adoption of the Gregorian calendar is simply unknown.
     bool IsGregorianDate(GregorianAdoption country = Gr_Standard) const;
 
         //     adoption of the Gregorian calendar is simply unknown.
     bool IsGregorianDate(GregorianAdoption country = Gr_Standard) const;
 

+    // dos date and time format
+    // ------------------------------------------------------------------------
+
+        // set from the DOS packed format
+    wxDateTime& SetFromDOS(unsigned long ddt);
+
+        // pack the date in DOS format
+    unsigned long GetAsDOS() const;
+

     // comparison (see also functions below for operator versions)
     // ------------------------------------------------------------------------
 
     // comparison (see also functions below for operator versions)
     // ------------------------------------------------------------------------
 


@@ -1140,6 +1178,12 @@ private:
 // Beware about weeks: if you specify both weeks and days, the total number of
 // days added will be 7*weeks + days! See also GetTotalDays() function.
 //
 // Beware about weeks: if you specify both weeks and days, the total number of
 // days added will be 7*weeks + days! See also GetTotalDays() function.
 //

+// Equality operators are defined for wxDateSpans. Two datespans are equal if
+// they both give the same target date when added to *every* source date.
+// Thus wxDateSpan::Months(1) is not equal to wxDateSpan::Days(30), because
+// they not give the same date when added to 1 Feb. But wxDateSpan::Days(14) is
+// equal to wxDateSpan::Weeks(2)
+//

 // Finally, notice that for adding hours, minutes &c you don't need this
 // class: wxTimeSpan will do the job because there are no subtleties
 // associated with those.
 // Finally, notice that for adding hours, minutes &c you don't need this
 // class: wxTimeSpan will do the job because there are no subtleties
 // associated with those.


@@ -1321,14 +1365,16 @@ protected:
 // else than datetime.cpp in debug builds: this minimizes rebuilds if we change
 // some inline function and the performance doesn't matter in the debug builds.
 
 // else than datetime.cpp in debug builds: this minimizes rebuilds if we change
 // some inline function and the performance doesn't matter in the debug builds.
 

-#if !defined(__WXDEBUG__) || defined(wxDEFINE_TIME_CONSTANTS)
+#if !defined(wxDATETIME_DONT_INLINE) || defined(wxDEFINE_TIME_CONSTANTS)

     #define INCLUDED_FROM_WX_DATETIME_H
         #include "wx/datetime.inl"
     #undef INCLUDED_FROM_WX_DATETIME_H
 #endif
 
 // if we defined it to be empty above, restore it now
     #define INCLUDED_FROM_WX_DATETIME_H
         #include "wx/datetime.inl"
     #undef INCLUDED_FROM_WX_DATETIME_H
 #endif
 
 // if we defined it to be empty above, restore it now

-#undef inline
+#ifdef wxDATETIME_DONT_INLINE
+    #undef inline
+#endif

 
 // ============================================================================
 // binary operators
 
 // ============================================================================
 // binary operators


@@ -1484,6 +1530,24 @@ inline bool WXDLLEXPORT operator!=(const wxTimeSpan &t1, const wxTimeSpan &t2)
 // wxDateSpan
 // ----------------------------------------------------------------------------
 
 // wxDateSpan
 // ----------------------------------------------------------------------------
 

+// comparison
+// ----------
+
+// ds1 == d2 if and only if for every wxDateTime t t + ds1 == t + ds2
+inline WXDLLEXPORT bool operator==(const wxDateSpan& ds1,
+                                   const wxDateSpan& ds2)
+{
+    return ds1.GetYears() == ds2.GetYears() &&
+           ds1.GetMonths() == ds2.GetMonths() &&
+           ds1.GetTotalDays() == ds2.GetTotalDays();
+}
+
+inline WXDLLEXPORT bool operator!=(const wxDateSpan& ds1,
+                                   const wxDateSpan& ds2)
+{
+  return !(ds1 == ds2);
+}
+

 // arithmetics
 // -----------
 
 // arithmetics
 // -----------
 


@@ -1557,4 +1621,6 @@ inline WXDLLEXPORT void wxPrevWDay(wxDateTime::WeekDay& wd)
                                : (wxDateTime::WeekDay)(wd - 1);
 }
 
                                : (wxDateTime::WeekDay)(wd - 1);
 }
 

+#endif // wxUSE_DATETIME
+

 #endif // _WX_DATETIME_H
 #endif // _WX_DATETIME_H