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diff --git a/reportdesign/source/core/sdr/formatnormalizer.hxx b/reportdesign/source/core/sdr/formatnormalizer.hxx
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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 .
+ */
+
+#ifndef INCLUDED_REPORTDESIGN_SOURCE_CORE_SDR_FORMATNORMALIZER_HXX
+#define INCLUDED_REPORTDESIGN_SOURCE_CORE_SDR_FORMATNORMALIZER_HXX
+
+#include <com/sun/star/report/XReportDefinition.hpp>
+#include <com/sun/star/beans/PropertyChangeEvent.hpp>
+#include <com/sun/star/report/XFormattedField.hpp>
+
+#include <vector>
+
+
+namespace rptui
+{
+
+
+    class OReportModel;
+
+    //= FormatNormalizer
+
+    class FormatNormalizer
+    {
+    public:
+        struct Field
+        {
+            OUString sName;
+            sal_Int32       nDataType;
+            sal_Int32       nScale;
+            bool        bIsCurrency;
+
+            Field() : sName(), nDataType( 0 ), nScale( 0 ), bIsCurrency( false ) { }
+        };
+        typedef ::std::vector< Field >  FieldList;
+
+    private:
+        const OReportModel&                                       m_rModel;
+        css::uno::Reference< css::report::XReportDefinition >     m_xReportDefinition;
+
+        /// is our field list dirty?
+        FieldList                       m_aFields;
+        bool                            m_bFieldListDirty;
+
+    public:
+        explicit FormatNormalizer( const OReportModel& _rModel );
+        ~FormatNormalizer();
+        FormatNormalizer(const FormatNormalizer&) = delete;
+        FormatNormalizer& operator=(const FormatNormalizer&) = delete;
+
+        void    notifyPropertyChange( const css::beans::PropertyChangeEvent& _rEvent );
+        void    notifyElementInserted( const css::uno::Reference< css::uno::XInterface >& _rxElement );
+
+    private:
+        bool    impl_lateInit();
+
+        void    impl_onDefinitionPropertyChange( std::u16string_view _rChangedPropName );
+        void    impl_onFormattedProperttyChange( const css::uno::Reference< css::report::XFormattedField >& _rxFormatted, std::u16string_view _rChangedPropName );
+
+        bool    impl_ensureUpToDateFieldList_nothrow();
+
+        void    impl_adjustFormatToDataFieldType_nothrow( const css::uno::Reference< css::report::XFormattedField >& _rxFormatted );
+    };
+
+
+} // namespace rptui
+
+
+#endif // INCLUDED_REPORTDESIGN_SOURCE_CORE_SDR_FORMATNORMALIZER_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */