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diff --git a/chart2/source/controller/dialogs/res_Trendline.hxx b/chart2/source/controller/dialogs/res_Trendline.hxx
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+++ b/chart2/source/controller/dialogs/res_Trendline.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_CHART2_SOURCE_CONTROLLER_DIALOGS_RES_TRENDLINE_HXX
+#define INCLUDED_CHART2_SOURCE_CONTROLLER_DIALOGS_RES_TRENDLINE_HXX
+
+#include <tools/link.hxx>
+#include <svl/itemset.hxx>
+#include <svx/chrtitem.hxx>
+
+namespace weld { class Builder; }
+namespace weld { class CheckButton; }
+namespace weld { class Entry; }
+namespace weld { class FormattedSpinButton; }
+namespace weld { class Image; }
+namespace weld { class RadioButton; }
+namespace weld { class SpinButton; }
+namespace weld { class ToggleButton; }
+
+class SvNumberFormatter;
+
+namespace chart
+{
+
+class TrendlineResources final
+{
+public:
+    TrendlineResources(weld::Builder& rParent, const SfxItemSet& rInAttrs);
+    ~TrendlineResources();
+
+    void Reset(const SfxItemSet& rInAttrs);
+    void FillItemSet(SfxItemSet* rOutAttrs) const;
+
+    void FillValueSets();
+
+    void SetNumFormatter( SvNumberFormatter* pFormatter );
+    void SetNbPoints( sal_Int32 nNbPoints );
+
+private:
+    SvxChartRegress     m_eTrendLineType;
+
+    bool                m_bTrendLineUnique;
+
+    SvNumberFormatter*  m_pNumFormatter;
+    sal_Int32           m_nNbPoints;
+
+    std::unique_ptr<weld::RadioButton> m_xRB_Linear;
+    std::unique_ptr<weld::RadioButton> m_xRB_Logarithmic;
+    std::unique_ptr<weld::RadioButton> m_xRB_Exponential;
+    std::unique_ptr<weld::RadioButton> m_xRB_Power;
+    std::unique_ptr<weld::RadioButton> m_xRB_Polynomial;
+    std::unique_ptr<weld::RadioButton> m_xRB_MovingAverage;
+
+    std::unique_ptr<weld::Image> m_xFI_Linear;
+    std::unique_ptr<weld::Image> m_xFI_Logarithmic;
+    std::unique_ptr<weld::Image> m_xFI_Exponential;
+    std::unique_ptr<weld::Image> m_xFI_Power;
+    std::unique_ptr<weld::Image> m_xFI_Polynomial;
+    std::unique_ptr<weld::Image> m_xFI_MovingAverage;
+
+    std::unique_ptr<weld::SpinButton> m_xNF_Degree;
+    std::unique_ptr<weld::SpinButton> m_xNF_Period;
+    std::unique_ptr<weld::Entry> m_xEE_Name;
+    std::unique_ptr<weld::FormattedSpinButton> m_xFmtFld_ExtrapolateForward;
+    std::unique_ptr<weld::FormattedSpinButton> m_xFmtFld_ExtrapolateBackward;
+    std::unique_ptr<weld::CheckButton> m_xCB_SetIntercept;
+    std::unique_ptr<weld::FormattedSpinButton> m_xFmtFld_InterceptValue;
+    std::unique_ptr<weld::CheckButton> m_xCB_ShowEquation;
+    std::unique_ptr<weld::Entry> m_xEE_XName;
+    std::unique_ptr<weld::Entry> m_xEE_YName;
+    std::unique_ptr<weld::CheckButton> m_xCB_ShowCorrelationCoeff;
+
+    void UpdateControlStates();
+    DECL_LINK(SelectTrendLine, weld::ToggleButton&, void);
+    DECL_LINK(ChangeSpinValue, weld::SpinButton&, void);
+    DECL_LINK(ChangeFormattedValue, weld::FormattedSpinButton&, void);
+    DECL_LINK(ShowEquation, weld::ToggleButton&, void);
+};
+
+} //  namespace chart
+
+// INCLUDED_CHART2_SOURCE_CONTROLLER_DIALOGS_RES_TRENDLINE_HXX
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */