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diff --git a/sc/inc/scextopt.hxx b/sc/inc/scextopt.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 <memory>
+#include <tools/gen.hxx>
+#include <tools/color.hxx>
+#include "rangelst.hxx"
+
+/** Extended settings for the document, used in import/export filters. */
+struct ScExtDocSettings
+{
+    OUString            maGlobCodeName;     ///< Global codename (VBA module name).
+    double              mfTabBarWidth;      ///< Width of the tabbar, relative to frame window width (0.0 ... 1.0).
+    sal_uInt32          mnLinkCnt;          ///< Recursive counter for loading external documents.
+    SCTAB               mnDisplTab;         ///< Index of displayed sheet.
+
+    explicit            ScExtDocSettings();
+};
+
+/** Enumerates possible positions of panes in split sheets. */
+enum ScExtPanePos
+{
+    SCEXT_PANE_TOPLEFT,         ///< Single, top, left, or top-left pane.
+    SCEXT_PANE_TOPRIGHT,        ///< Right, or top-right pane.
+    SCEXT_PANE_BOTTOMLEFT,      ///< Bottom, or bottom-left pane.
+    SCEXT_PANE_BOTTOMRIGHT      ///< Bottom-right pane.
+};
+
+/** Extended settings for a sheet, used in import/export filters. */
+struct ScExtTabSettings
+{
+    ScRange             maUsedArea;         ///< Used area in the sheet (columns/rows only).
+    ScRangeList         maSelection;        ///< Selected cell ranges (columns/rows only).
+    ScAddress           maCursor;           ///< The cursor position (column/row only).
+    ScAddress           maFirstVis;         ///< Top-left visible cell (column/row only).
+    ScAddress           maSecondVis;        ///< Top-left visible cell in add. panes (column/row only).
+    ScAddress           maFreezePos;        ///< Position of frozen panes (column/row only).
+    Point               maSplitPos;         ///< Position of split.
+    ScExtPanePos        meActivePane;       ///< Active (focused) pane.
+    Color               maGridColor;        ///< Grid color.
+    tools::Long                mnNormalZoom;       ///< Zoom in percent for normal view.
+    tools::Long                mnPageZoom;         ///< Zoom in percent for pagebreak preview.
+    bool                mbSelected;         ///< true = Sheet is selected.
+    bool                mbFrozenPanes;      ///< true = Frozen panes; false = Normal splits.
+    bool                mbPageMode;         ///< true = Pagebreak mode; false = Normal view mode.
+    bool                mbShowGrid;         ///< Whether or not to display gridlines.
+
+    explicit            ScExtTabSettings();
+};
+
+struct ScExtDocOptionsImpl;
+
+/** Extended options held by an ScDocument containing additional settings for filters.
+
+    This object is owned by a Calc document. It contains global document settings
+    (struct ScExtDocSettings), settings for all sheets in the document
+    (struct ScExtTabSettings), and a list of codenames used for VBA import/export.
+ */
+class SC_DLLPUBLIC ScExtDocOptions
+{
+public:
+    explicit            ScExtDocOptions();
+                        ScExtDocOptions( const ScExtDocOptions& rSrc );
+                        ~ScExtDocOptions();
+
+    ScExtDocOptions&    operator=( const ScExtDocOptions& rSrc );
+
+    /** @return true, if the data needs to be copied to the view data after import. */
+    bool                IsChanged() const;
+    /** If set to true, the data will be copied to the view data after import. */
+    void                SetChanged( bool bChanged );
+
+    /** @return read access to the global document settings. */
+    const ScExtDocSettings& GetDocSettings() const;
+    /** @return read/write access to the global document settings. */
+    ScExtDocSettings&   GetDocSettings();
+
+    /** @return read access to the settings of a sheet, if extant; otherwise 0. */
+    const ScExtTabSettings* GetTabSettings( SCTAB nTab ) const;
+
+    /**
+     * @return index of the last sheet that has settings, or -1 if no tab
+     *         settings are present.
+     */
+    SCTAB GetLastTab() const;
+
+    /** @return read/write access to the settings of a sheet, may create a new struct. */
+    ScExtTabSettings&   GetOrCreateTabSettings( SCTAB nTab );
+
+    /** @return the number of sheet codenames. */
+    SCTAB               GetCodeNameCount() const;
+    /** @return the specified codename (empty string = no codename). */
+    OUString     GetCodeName( SCTAB nTab ) const;
+    /** Appends a codename for a sheet. */
+    void                SetCodeName( SCTAB nTab, const OUString& rCodeName );
+
+private:
+    ::std::unique_ptr< ScExtDocOptionsImpl > mxImpl;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */