unotools: extractDate and extractTime functions

Added a pair of functions to split a UNO DateTime object into the
corresponding Date and Time objects.

Change-Id: I6bf31d83b3843a9482d6bf538a5dd7130c2c7046

include/unotools/datetime.hxx

@@ -44,6 +44,9 @@ namespace utl
     UNOTOOLS_DLLPUBLIC void typeConvert(const DateTime& _rDateTime, starutil::DateTime& _rOut);
     UNOTOOLS_DLLPUBLIC void typeConvert(const starutil::DateTime& _rDateTime, DateTime& _rOut);
 
+    UNOTOOLS_DLLPUBLIC void extractDate(const starutil::DateTime& _rDateTime, starutil::Date& _rOut);
+    UNOTOOLS_DLLPUBLIC void extractTime(const starutil::DateTime& _rDateTime, starutil::Time& _rOut);
+
     UNOTOOLS_DLLPUBLIC ::rtl::OUString toISO8601(const starutil::DateTime& _rDateTime);
     UNOTOOLS_DLLPUBLIC bool            ISO8601parseDateTime(const ::rtl::OUString &i_rIn, starutil::DateTime& o_rDateTime);
     UNOTOOLS_DLLPUBLIC bool            ISO8601parseDate(const ::rtl::OUString &i_rIn, starutil::Date& o_rDate);

unotools/source/misc/datetime.cxx

@@ -215,6 +215,23 @@ void typeConvert(const starutil::DateTime& _rDateTime, DateTime& _rOut)
 }
 
 
+void extractDate(const starutil::DateTime& _rDateTime, starutil::Date& _rOut)
+{
+    _rOut.Day = _rDateTime.Day;
+    _rOut.Month = _rDateTime.Month;
+    _rOut.Year = _rDateTime.Year;
+}
+
+
+void extractTime(const starutil::DateTime& _rDateTime, starutil::Time& _rOut)
+{
+    _rOut.Hours = _rDateTime.Hours;
+    _rOut.Minutes =  _rDateTime.Minutes;
+    _rOut.Seconds = _rDateTime.Seconds;
+    _rOut.NanoSeconds = _rDateTime.NanoSeconds;
+}
+
+
 OUString toISO8601(const starutil::DateTime& rDateTime)
 {
     OUStringBuffer rBuffer;