X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0824e369691b4a23a484e1d258b6e4ea021b022a..d3fa4bc22e84e3ca4d88cc1772f2d414140a1017:/interface/wx/datetime.h

diff --git a/interface/wx/datetime.h b/interface/wx/datetime.h
index 46106b11bf..f49315e693 100644
--- a/interface/wx/datetime.h
+++ b/interface/wx/datetime.h
@@ -482,7 +482,7 @@ public:
 
     /**
         Constructs the object from @a timet value holding the number of seconds
-        since Jan 1, 1970.
+        since Jan 1, 1970 UTC.
 
         If @a timet is invalid, i.e. @code (time_t)-1 @endcode, wxDateTime
         becomes invalid too, i.e. its IsValid() will return @false.
@@ -668,8 +668,10 @@ public:
     unsigned short GetSecond(const TimeZone& tz = Local) const;
 
     /**
-        Returns the number of seconds since Jan 1, 1970. An assert failure will
-        occur if the date is not in the range covered by @c time_t type.
+        Returns the number of seconds since Jan 1, 1970 UTC.
+
+        An assert failure will occur if the date is not in the range covered by
+        @c time_t type, use GetValue() if you work with dates outside of it.
     */
     time_t GetTicks() const;
 
@@ -818,7 +820,7 @@ public:
     /**
         Adds the given date span to this object.
     */
-    wxDateTime Add(const wxDateSpan& diff);
+    wxDateTime& Add(const wxDateSpan& diff);
     /**
         Adds the given time span to this object.
     */
@@ -863,18 +865,39 @@ public:
         Adds the given date span to this object.
     */
     wxDateTime& operator+=(const wxDateSpan& diff);
+    /**
+        Adds the given date span to this object.
+    */
+    wxDateTime operator+(const wxDateSpan& ds) const;
     /**
         Subtracts the given date span from this object.
     */
     wxDateTime& operator-=(const wxDateSpan& diff);
+    /**
+        Subtracts the given date span from this object.
+    */
+    wxDateTime operator-(const wxDateSpan& ds) const;
     /**
         Adds the given time span to this object.
     */
     wxDateTime& operator+=(const wxTimeSpan& diff);
+    /**
+        Adds the given time span to this object.
+    */
+    wxDateTime operator+(const wxTimeSpan& ts) const;
     /**
         Subtracts the given time span from this object.
     */
     wxDateTime& operator-=(const wxTimeSpan& diff);
+    /**
+        Subtracts the given time span from this object.
+    */
+    wxDateTime operator-(const wxTimeSpan& ts) const;
+    /**
+        Subtracts another date from this one and returns the difference between
+        them as a wxTimeSpan.
+    */
+    wxTimeSpan operator-(const wxDateTime& dt2) const;
 
     //@}