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diff --git a/xmloff/source/style/shadwhdl.cxx b/xmloff/source/style/shadwhdl.cxx
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+/* -*- 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "shadwhdl.hxx"
+#include <com/sun/star/uno/Any.hxx>
+#include <rtl/ustrbuf.hxx>
+
+
+#include <com/sun/star/table/ShadowFormat.hpp>
+#include <o3tl/safeint.hxx>
+#include <tools/color.hxx>
+#include <sax/tools/converter.hxx>
+#include <xmloff/xmluconv.hxx>
+#include <xmloff/xmltoken.hxx>
+
+using namespace ::com::sun::star;
+using namespace ::xmloff::token;
+
+
+
+
+XMLShadowPropHdl::~XMLShadowPropHdl()
+{
+ // nothing to do
+}
+
+bool XMLShadowPropHdl::importXML( const OUString& rStrImpValue, uno::Any& rValue, const SvXMLUnitConverter& rUnitConverter ) const
+{
+ bool bRet = false;
+ table::ShadowFormat aShadow;
+ aShadow.Location = table::ShadowLocation_BOTTOM_RIGHT;
+
+ bool bColorFound = false;
+ bool bOffsetFound = false;
+ SvXMLTokenEnumerator aTokenEnum( rStrImpValue );
+ Color aColor( 128,128, 128 );
+ std::u16string_view aToken;
+
+ while( aTokenEnum.getNextToken( aToken ) )
+ {
+ if( IsXMLToken( aToken, XML_NONE ) )
+ {
+ aShadow.Location = table::ShadowLocation_NONE;
+ bRet = true;
+ break;
+ }
+ else if( !bColorFound && aToken.substr(0,1) == u"#" )
+ {
+ bRet = ::sax::Converter::convertColor( aColor, aToken );
+ if( !bRet )
+ return false;
+ bColorFound = true;
+ }
+ else if( !bOffsetFound )
+ {
+ sal_Int32 nX = 0, nY = 0;
+
+ bRet = rUnitConverter.convertMeasureToCore( nX, aToken );
+ if( bRet && aTokenEnum.getNextToken( aToken ) )
+ bRet = rUnitConverter.convertMeasureToCore( nY, aToken );
+
+ if( bRet )
+ {
+ if( nX < 0 )
+ {
+ if( nY < 0 )
+ aShadow.Location = table::ShadowLocation_TOP_LEFT;
+ else
+ aShadow.Location = table::ShadowLocation_BOTTOM_LEFT;
+ }
+ else
+ {
+ if( nY < 0 )
+ aShadow.Location = table::ShadowLocation_TOP_RIGHT;
+ else
+ aShadow.Location = table::ShadowLocation_BOTTOM_RIGHT;
+ }
+
+ if (nX < 0)
+ nX = o3tl::saturating_toggle_sign(nX);
+ if (nY < 0)
+ nY = o3tl::saturating_toggle_sign(nY);
+
+ sal_Int32 nWidth;
+ bRet = !o3tl::checked_add(nX, nY, nWidth);
+ if (bRet)
+ aShadow.ShadowWidth = sal::static_int_cast<sal_Int16>(nWidth >> 1);
+ }
+ }
+ }
+
+ if( bRet && ( bColorFound || bOffsetFound ) )
+ {
+ aShadow.IsTransparent = aColor.IsTransparent();
+ aShadow.Color = sal_Int32(aColor);
+ bRet = true;
+ }
+
+ rValue <<= aShadow;
+
+ return bRet;
+}
+
+bool XMLShadowPropHdl::exportXML( OUString& rStrExpValue, const uno::Any& rValue, const SvXMLUnitConverter& rUnitConverter ) const
+{
+ bool bRet = false;
+ table::ShadowFormat aShadow;
+
+ if( rValue >>= aShadow )
+ {
+ sal_Int32 nX = 1, nY = 1;
+
+ switch( aShadow.Location )
+ {
+ case table::ShadowLocation_TOP_LEFT:
+ nX = -1;
+ nY = -1;
+ break;
+ case table::ShadowLocation_TOP_RIGHT:
+ nY = -1;
+ break;
+ case table::ShadowLocation_BOTTOM_LEFT:
+ nX = -1;
+ break;
+ case table::ShadowLocation_BOTTOM_RIGHT:
+ break;
+ case table::ShadowLocation_NONE:
+ default:
+ rStrExpValue = GetXMLToken(XML_NONE);
+ return true;
+ }
+
+ nX *= aShadow.ShadowWidth;
+ nY *= aShadow.ShadowWidth;
+
+ OUStringBuffer aOut;
+ ::sax::Converter::convertColor( aOut, aShadow.Color );
+ aOut.append( ' ' );
+ rUnitConverter.convertMeasureToXML( aOut, nX );
+ aOut.append( ' ' );
+ rUnitConverter.convertMeasureToXML( aOut, nY );
+
+ rStrExpValue = aOut.makeStringAndClear();
+
+ bRet = true;
+ }
+
+ return bRet;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */