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diff --git a/include/formula/funcutl.hxx b/include/formula/funcutl.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_FORMULA_FUNCUTL_HXX
+#define INCLUDED_FORMULA_FUNCUTL_HXX
+
+#include <formula/formuladllapi.h>
+#include <rtl/ustring.hxx>
+#include <tools/link.hxx>
+#include <vcl/idle.hxx>
+#include <vcl/weld.hxx>
+
+class KeyEvent;
+struct ImplSVEvent;
+
+namespace formula {
+
+class IControlReferenceHandler;
+
+class FORMULA_DLLPUBLIC RefEdit
+{
+protected:
+    std::unique_ptr<weld::Entry> xEntry;
+
+private:
+    Idle aIdle;
+    IControlReferenceHandler* pAnyRefDlg; // parent dialog
+    weld::Label* pLabelWidget;
+    ImplSVEvent* mpFocusInEvent;
+    ImplSVEvent* mpFocusOutEvent;
+
+    Link<RefEdit&,void> maGetFocusHdl;
+    Link<RefEdit&,void> maLoseFocusHdl;
+    Link<RefEdit&,void> maModifyHdl;
+    Link<weld::Widget&,bool> maActivateHdl;
+
+    DECL_DLLPRIVATE_LINK( UpdateHdl, Timer*, void );
+
+    DECL_DLLPRIVATE_LINK(KeyInputHdl, const KeyEvent&, bool);
+    DECL_DLLPRIVATE_LINK(GetFocusHdl, weld::Widget&, void);
+    DECL_DLLPRIVATE_LINK(LoseFocusHdl, weld::Widget&, void);
+    DECL_DLLPRIVATE_LINK(AsyncFocusInHdl, void*, void);
+    DECL_DLLPRIVATE_LINK(AsyncFocusOutHdl, void*, void);
+    DECL_DLLPRIVATE_LINK(Modify, weld::Entry&, void);
+
+    void GetFocus();
+    void LoseFocus();
+
+protected:
+    virtual bool KeyInput(const KeyEvent& rKEvt);
+
+public:
+    RefEdit(std::unique_ptr<weld::Entry> xControl);
+    weld::Entry* GetWidget() const { return xEntry.get(); }
+    virtual ~RefEdit();
+
+    void SetRefString( const OUString& rStr );
+
+    /**
+     * Flag reference valid or invalid, which in turn changes the visual
+     * appearance of the control accordingly.
+     */
+    void SetRefValid(bool bValid);
+
+    void SetText(const OUString& rStr);
+    OUString GetText() const
+    {
+        return xEntry->get_text();
+    }
+
+    void StartUpdateData();
+
+    void SetReferences( IControlReferenceHandler* pDlg, weld::Label *pLabelWidget );
+
+    void DoModify()
+    {
+        Modify(*xEntry);
+    }
+
+    void GrabFocus()
+    {
+        xEntry->grab_focus();
+    }
+
+    void SelectAll()
+    {
+        xEntry->select_region(0, -1);
+    }
+
+    void SetSelection(const Selection& rSelection)
+    {
+        xEntry->select_region(rSelection.Min(), rSelection.Max());
+    }
+
+    void SetCursorAtLast()
+    {
+        xEntry->set_position(-1);
+    }
+
+    Selection GetSelection() const
+    {
+        int nStartPos, nEndPos;
+        xEntry->get_selection_bounds(nStartPos, nEndPos);
+        return Selection(nStartPos, nEndPos);
+    }
+
+    weld::Label* GetLabelWidgetForShrinkMode()
+    {
+        return pLabelWidget;
+    }
+
+    void SaveValue()
+    {
+        xEntry->save_value();
+    }
+
+    bool IsValueChangedFromSaved() const
+    {
+        return xEntry->get_value_changed_from_saved();
+    }
+
+    void SetGetFocusHdl(const Link<RefEdit&,void>& rLink) { maGetFocusHdl = rLink; }
+    void SetLoseFocusHdl(const Link<RefEdit&,void>& rLink) { maLoseFocusHdl = rLink; }
+    void SetModifyHdl(const Link<RefEdit&,void>& rLink) { maModifyHdl = rLink; }
+    const Link<RefEdit&,void>& GetModifyHdl() const { return maModifyHdl; }
+    void SetActivateHdl(const Link<weld::Widget&,bool>& rLink) { maActivateHdl = rLink; }
+};
+
+class FORMULA_DLLPUBLIC RefButton
+{
+private:
+    std::unique_ptr<weld::Button> xButton;
+    IControlReferenceHandler* pAnyRefDlg;   // parent dialog
+    RefEdit*              pRefEdit;     // associated Edit-Control
+    Link<RefButton&,void> maGetFocusHdl;
+    Link<RefButton&,void> maLoseFocusHdl;
+    Link<weld::Widget&,bool> maActivateHdl;
+    Link<RefButton&,void> maClickHdl;
+
+    DECL_LINK(Click, weld::Button&, void);
+    DECL_DLLPRIVATE_LINK(KeyInput, const KeyEvent&, bool);
+    DECL_DLLPRIVATE_LINK(GetFocus, weld::Widget&, void);
+    DECL_DLLPRIVATE_LINK(LoseFocus, weld::Widget&, void);
+
+public:
+    RefButton(std::unique_ptr<weld::Button> xControl);
+    weld::Button* GetWidget() const { return xButton.get(); }
+    ~RefButton();
+    void SetReferences(IControlReferenceHandler* pDlg, RefEdit* pEdit);
+    void SetStartImage();
+    void SetEndImage();
+    void DoRef()
+    {
+        Click(*xButton);
+    }
+    void SetGetFocusHdl(const Link<RefButton&,void>& rLink) { maGetFocusHdl = rLink; }
+    void SetLoseFocusHdl(const Link<RefButton&,void>& rLink) { maLoseFocusHdl = rLink; }
+    void SetActivateHdl(const Link<weld::Widget&,bool>& rLink) { maActivateHdl = rLink; }
+    void SetClickHdl(const Link<RefButton&,void>& rLink) { maClickHdl = rLink; }
+};
+
+} // formula
+
+#endif // INCLUDED_FORMULA_FUNCUTL_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */