1 files changed, 82 insertions, 0 deletions
diff --git a/tools/source/datetime/datetimeutils.cxx b/tools/source/datetime/datetimeutils.cxx
new file mode 100644
index 000000000..4c3b28d49
--- /dev/null
+++ b/tools/source/datetime/datetimeutils.cxx
@@ -0,0 +1,82 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <tools/datetimeutils.hxx>
+#include <rtl/strbuf.hxx>
+
+
+/// Append the number as 2-digit when less than 10.
+static void lcl_AppendTwoDigits( OStringBuffer &rBuffer, sal_Int32 nNum )
+{
+    if ( nNum < 0 || nNum > 99 )
+    {
+        rBuffer.append( "00" );
+        return;
+    }
+
+    if ( nNum < 10 )
+        rBuffer.append( '0' );
+
+    rBuffer.append( nNum );
+}
+
+OString DateTimeToOString( const DateTime& rDateTime )
+{
+    const DateTime& aInUTC( rDateTime );
+// HACK: this is correct according to the spec, but MSOffice believes everybody lives
+// in UTC+0 when reading it back
+//    aInUTC.ConvertToUTC();
+
+    OStringBuffer aBuffer( 25 );
+    aBuffer.append( sal_Int32( aInUTC.GetYear() ) );
+    aBuffer.append( '-' );
+
+    lcl_AppendTwoDigits( aBuffer, aInUTC.GetMonth() );
+    aBuffer.append( '-' );
+
+    lcl_AppendTwoDigits( aBuffer, aInUTC.GetDay() );
+    aBuffer.append( 'T' );
+
+    lcl_AppendTwoDigits( aBuffer, aInUTC.GetHour() );
+    aBuffer.append( ':' );
+
+    lcl_AppendTwoDigits( aBuffer, aInUTC.GetMin() );
+    aBuffer.append( ':' );
+
+    lcl_AppendTwoDigits( aBuffer, aInUTC.GetSec() );
+    aBuffer.append( 'Z' ); // we are in UTC
+
+    return aBuffer.makeStringAndClear();
+}
+
+OString DateToOString( const Date& rDate )
+{
+    tools::Time aTime( tools::Time::EMPTY );
+    return DateTimeToOString( DateTime( rDate, aTime ) );
+}
+
+OString DateToDDMMYYYYOString( const Date& rDate )
+{
+    OStringBuffer aBuffer( 25 );
+    lcl_AppendTwoDigits( aBuffer, rDate.GetDay() );
+    aBuffer.append( '/' );
+
+    lcl_AppendTwoDigits( aBuffer, rDate.GetMonth() );
+    aBuffer.append( '/' );
+
+    aBuffer.append( sal_Int32( rDate.GetYear() ) );
+
+    return aBuffer.makeStringAndClear();
+}
+
+std::ostream& operator<<(std::ostream& os, const Date& rDate)
+{
+    os << rDate.GetYear() << "-" << rDate.GetMonth() << "-" << rDate.GetDay();
+    return os;
+}