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diff --git a/svx/source/sidebar/paragraph/ParaLineSpacingControl.hxx b/svx/source/sidebar/paragraph/ParaLineSpacingControl.hxx
new file mode 100644
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+++ b/svx/source/sidebar/paragraph/ParaLineSpacingControl.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 .
+ */
+#pragma once
+
+#include <svtools/toolbarmenu.hxx>
+
+class SvxLineSpacingItem;
+
+namespace svx
+{
+class SvxLineSpacingToolBoxControl;
+
+class ParaLineSpacingControl : public WeldToolbarPopup
+{
+public:
+    explicit ParaLineSpacingControl(SvxLineSpacingToolBoxControl* pControl, weld::Widget* pParent);
+    virtual ~ParaLineSpacingControl() override;
+
+    /// Setup the widgets with values from the document.
+    void Initialize();
+
+    virtual void GrabFocus() override;
+
+private:
+    rtl::Reference<SvxLineSpacingToolBoxControl> mxControl;
+
+    MapUnit meLNSpaceUnit;
+
+    std::unique_ptr<weld::Button> mxSpacing1Button;
+    std::unique_ptr<weld::Button> mxSpacing115Button;
+    std::unique_ptr<weld::Button> mxSpacing15Button;
+    std::unique_ptr<weld::Button> mxSpacing2Button;
+
+    std::unique_ptr<weld::ComboBox> mxLineDist;
+
+    std::unique_ptr<weld::Label> mxLineDistLabel;
+    std::unique_ptr<weld::MetricSpinButton> mxLineDistAtPercentBox;
+    std::unique_ptr<weld::MetricSpinButton> mxLineDistAtMetricBox;
+    weld::MetricSpinButton* mpActLineDistFld;
+
+private:
+    /// Take the values from the widgets, and update the paragraph accordingly.
+    void ExecuteLineSpace();
+
+    /// Set one particular value.
+    static void SetLineSpace(SvxLineSpacingItem& rLineSpace, sal_Int32 eSpace, long lValue = 0);
+
+    /// For the buttons - set the values, and close the popup.
+    void ExecuteLineSpacing(sal_Int32 aEntry);
+
+    /// Set mpActlineDistFld and visibility of mpLineDist* fields according to what is just selected.
+    void UpdateMetricFields();
+
+    /// Set the entry and update the metric fields.
+    void SelectEntryPos(sal_Int32 nPos);
+
+    DECL_LINK(LineSPDistHdl_Impl, weld::ComboBox&, void);
+    DECL_LINK(LineSPDistAtHdl_Impl, weld::MetricSpinButton&, void);
+    DECL_LINK(PredefinedValuesHandler, weld::Button&, void);
+};
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */