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diff --git a/sd/source/ui/inc/OutlineView.hxx b/sd/source/ui/inc/OutlineView.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 <vcl/image.hxx>
+#include <vcl/vclevent.hxx>
+#include <editeng/lrspitem.hxx>
+#include <o3tl/deleter.hxx>
+#include "View.hxx"
+
+class SdPage;
+class SdrPage;
+class SdrTextObj;
+class SfxProgress;
+struct PasteOrDropInfos;
+class EditView;
+
+namespace sd::tools {
+    class EventMultiplexerEvent;
+}
+
+namespace sd {
+
+class DrawDocShell;
+class OutlineViewShell;
+class OutlineViewModelChangeGuard;
+
+const int MAX_OUTLINERVIEWS = 4;
+
+/**
+ * Derivative of ::sd::View for the outline mode
+|*
+\************************************************************************/
+
+class OutlineView final
+    : public ::sd::View
+{
+    friend class OutlineViewModelChangeGuard;
+public:
+    OutlineView (DrawDocShell& rDocSh,
+        vcl::Window* pWindow,
+        OutlineViewShell& rOutlineViewSh);
+    virtual ~OutlineView() override;
+
+    /** This method is called by the view shell that owns the view to tell
+        the view that it can safely connect to the application.
+        This method must not be called before the view shell is on the shell
+        stack.
+    */
+    void ConnectToApplication();
+    void DisconnectFromApplication();
+
+
+    static SdrTextObj*     GetTitleTextObject(SdrPage const * pPage);
+    static SdrTextObj*     GetOutlineTextObject(SdrPage const * pPage);
+
+    static SdrTextObj*     CreateTitleTextObject(SdPage* pPage);
+    static SdrTextObj*     CreateOutlineTextObject(SdPage* pPage);
+
+    virtual void AddDeviceToPaintView(OutputDevice& rDev, vcl::Window* pWindow) override;
+    virtual void DeleteDeviceFromPaintView(OutputDevice& rDev) override;
+
+    OutlinerView*   GetViewByWindow(vcl::Window const * pWin) const;
+    SdOutliner&     GetOutliner() { return mrOutliner; }
+
+    Paragraph*      GetPrevTitle(const Paragraph* pPara);
+    Paragraph*      GetNextTitle(const Paragraph* pPara);
+    SdPage*         GetActualPage();
+    SdPage*         GetPageForParagraph( Paragraph* pPara );
+    Paragraph*      GetParagraphForPage( ::Outliner const & rOutl, SdPage const * pPage );
+
+    /** selects the paragraph for the given page at the outliner view*/
+    void            SetActualPage( SdPage const * pActual );
+
+    void Paint (const ::tools::Rectangle& rRect, ::sd::Window const * pWin);
+
+                    // Callbacks for LINKs
+    DECL_LINK( ParagraphInsertedHdl, ::Outliner::ParagraphHdlParam, void );
+    DECL_LINK( ParagraphRemovingHdl, ::Outliner::ParagraphHdlParam, void );
+    DECL_LINK( DepthChangedHdl, ::Outliner::DepthChangeHdlParam, void );
+    DECL_LINK( StatusEventHdl, EditStatus&, void );
+    DECL_LINK( BeginMovingHdl, ::Outliner *, void );
+    DECL_LINK( EndMovingHdl, ::Outliner *, void );
+    DECL_LINK( RemovingPagesHdl, OutlinerView *, bool );
+    DECL_LINK( IndentingPagesHdl, OutlinerView *, bool );
+    DECL_LINK( BeginDropHdl, EditView*, void );
+    DECL_LINK( EndDropHdl, EditView*, void );
+    DECL_LINK( PaintingFirstLineHdl, PaintFirstLineInfo*, void );
+
+    sal_uLong         GetPaperWidth() const { return mnPaperWidth;}
+
+    void              PrepareClose();
+
+    virtual void    GetAttributes( SfxItemSet& rTargetSet, bool bOnlyHardAttr = false ) const override;
+    virtual bool    SetAttributes(const SfxItemSet& rSet, bool bReplaceAll = false, bool bSlide = false, bool bMaster = false) override;
+
+    void               FillOutliner();
+    void               SetLinks();
+    void               ResetLinks() const;
+
+    SfxStyleSheet*     GetStyleSheet() const override;
+
+    void               SetSelectedPages();
+
+    virtual sal_Int8 AcceptDrop (
+        const AcceptDropEvent& rEvt,
+        DropTargetHelper& rTargetHelper,
+        SdrLayerID nLayer) override;
+    virtual sal_Int8 ExecuteDrop (
+        const ExecuteDropEvent& rEvt,
+        ::sd::Window* pTargetWindow,
+        sal_uInt16 nPage,
+        SdrLayerID nLayer) override;
+
+    // Re-implement GetScriptType for this view to get correct results
+    virtual SvtScriptType GetScriptType() const override;
+
+    /** After this method has been called with <TRUE/> following changes of
+        the current page are ignored in that the corresponding text is not
+        selected.
+        This is used to suppress unwanted side effects between selection and
+        cursor position.
+    */
+    void IgnoreCurrentPageChanges (bool bIgnore);
+
+    /** creates and inserts an empty slide for the given paragraph. */
+    SdPage* InsertSlideForParagraph( Paragraph* pPara );
+
+    void UpdateParagraph( sal_Int32 nPara );
+
+protected:
+    virtual void OnBeginPasteOrDrop( PasteOrDropInfos* pInfo ) override;
+    virtual void OnEndPasteOrDrop( PasteOrDropInfos* pInfo ) override;
+
+private:
+    /** call this method before you do anything that can modify the outliner
+        and or the drawing document model. It will create needed undo actions */
+    void BeginModelChange();
+
+    /** call this method after BeginModelChange(), when all possible model
+        changes are done. */
+    void EndModelChange();
+
+    /** merge edit engine undo actions if possible */
+    void TryToMergeUndoActions();
+
+    /** updates all changes in the outliner model to the draw model */
+    void UpdateDocument();
+
+    OutlineViewShell&   mrOutlineViewShell;
+    SdOutliner&         mrOutliner;
+    std::unique_ptr<OutlinerView> mpOutlinerViews[MAX_OUTLINERVIEWS];
+
+    std::vector<Paragraph*> maOldParaOrder;
+    std::vector<Paragraph*> maSelectedParas;
+
+    sal_Int32               mnPagesToProcess;    // for the progress bar
+    sal_Int32               mnPagesProcessed;
+
+    bool                mbFirstPaint;
+
+    sal_uLong               mnPaperWidth;
+
+    std::unique_ptr<SfxProgress> mpProgress;
+
+    /** stores the last used document color.
+        this is changed in onUpdateStyleSettings()
+    */
+    Color maDocColor;
+
+    /** updates the high contrast settings and document color if they changed.
+        @param bForceUpdate forces the method to set all style settings
+    */
+    void onUpdateStyleSettings( bool bForceUpdate );
+
+    /** this link is called from the vcl application when the stylesettings
+        change. Its only purpose is to call onUpdateStyleSettings() then.
+    */
+    DECL_LINK( AppEventListenerHdl, VclSimpleEvent&, void );
+
+    DECL_LINK(EventMultiplexerListener, sd::tools::EventMultiplexerEvent&, void);
+
+    /** holds a model guard during drag and drop between BeginMovingHdl and EndMovingHdl */
+    std::unique_ptr<OutlineViewModelChangeGuard, o3tl::default_delete<OutlineViewModelChangeGuard>> maDragAndDropModelGuard;
+
+    SvxLRSpaceItem maLRSpaceItem;
+    Image maSlideImage;
+};
+
+// calls IgnoreCurrentPageChangesLevel with true in ctor and with false in dtor
+class OutlineViewPageChangesGuard
+{
+public:
+    OutlineViewPageChangesGuard( OutlineView* pView );
+    ~OutlineViewPageChangesGuard();
+private:
+    OutlineView* mpView;
+};
+
+// calls BeginModelChange() on c'tor and EndModelChange() on d'tor
+class OutlineViewModelChangeGuard
+{
+public:
+    OutlineViewModelChangeGuard( OutlineView& rView );
+    ~OutlineViewModelChangeGuard() COVERITY_NOEXCEPT_FALSE;
+private:
+    OutlineView& mrView;
+};
+
+} // end of namespace sd
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */