9 files changed, 1148 insertions, 0 deletions
diff --git a/sd/source/ui/slidesorter/inc/view/SlideSorterView.hxx b/sd/source/ui/slidesorter/inc/view/SlideSorterView.hxx
new file mode 100644
index 000000000..0f3493ab3
--- /dev/null
+++ b/sd/source/ui/slidesorter/inc/view/SlideSorterView.hxx
@@ -0,0 +1,225 @@
+/* -*- 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 <model/SlsPageDescriptor.hxx>
+#include <model/SlsSharedPageDescriptor.hxx>
+#include <view/SlsLayouter.hxx>
+#include <view/SlsILayerPainter.hxx>
+#include <o3tl/deleter.hxx>
+
+#include <View.hxx>
+#include <tools/gen.hxx>
+#include <vcl/region.hxx>
+#include <memory>
+
+namespace sd::slidesorter::cache { class PageCache; }
+namespace sd::slidesorter::model { class SlideSorterModel; }
+namespace sd { class Window; }
+namespace sd::slidesorter { class SlideSorter; }
+namespace sd::slidesorter::view {
+
+class LayeredDevice;
+class PageObjectPainter;
+class ToolTip;
+
+class SlideSorterView final
+    : public sd::View
+{
+public:
+
+    /** Create a new view for the slide sorter.
+        @param rViewShell
+            This reference is simply passed to the base class and not used
+            by this class.
+
+    */
+    explicit SlideSorterView (SlideSorter& rSlideSorter);
+    void Init();
+
+    virtual ~SlideSorterView() override;
+    void Dispose();
+
+    SlideSorterView(const SlideSorterView&) = delete;
+    SlideSorterView& operator=(const SlideSorterView&) = delete;
+
+    /** Set the general way of layouting the page objects.  Note that this
+        method does not trigger any repaints or layouts.
+    */
+    bool SetOrientation (const Layouter::Orientation eOrientation);
+    Layouter::Orientation GetOrientation() const { return meOrientation;}
+
+    void RequestRepaint();
+    void RequestRepaint (const model::SharedPageDescriptor& rDescriptor);
+    void RequestRepaint (const ::tools::Rectangle& rRepaintBox);
+    void RequestRepaint (const vcl::Region& rRepaintRegion);
+
+    ::tools::Rectangle GetModelArea() const;
+
+    /** Return the index of the page that is rendered at the given position.
+        @param rPosition
+            The position is expected to be in pixel coordinates.
+        @return
+            The returned index is -1 when there is no page object at the
+            given position.
+    */
+    sal_Int32 GetPageIndexAtPoint (const Point& rPosition) const;
+
+    view::Layouter& GetLayouter();
+
+    virtual void ModelHasChanged() override;
+
+    /** This method is typically called before a model change takes place.
+        All references to model data are released.  PostModelChange() has to
+        be called to complete the handling of the model change.  When the
+        calls to Pre- and PostModelChange() are very close to each other you
+        may call HandleModelChange() instead.
+    */
+    void PreModelChange();
+
+    /** This method is typically called after a model change took place.
+        References to model data are re-allocated.  Call this method only
+        after PreModelChange() has been called.
+    */
+    void PostModelChange();
+
+    /** This method is a convenience function that simply calls
+        PreModelChange() and then PostModelChange().
+    */
+    void HandleModelChange();
+
+    void HandleDrawModeChange();
+
+    void Resize();
+    virtual void CompleteRedraw (
+        OutputDevice* pDevice,
+        const vcl::Region& rPaintArea,
+        sdr::contact::ViewObjectContactRedirector* pRedirector = nullptr) override;
+    void Paint (OutputDevice& rDevice, const ::tools::Rectangle& rRepaintArea);
+
+    virtual void ConfigurationChanged (
+        utl::ConfigurationBroadcaster* pBroadcaster,
+        ConfigurationHints nHint) override;
+
+    void HandleDataChangeEvent();
+
+    void Layout();
+    /** This tells the view that it has to re-determine the visibility of
+        the page objects before painting them the next time.
+    */
+    void InvalidatePageObjectVisibilities();
+
+    std::shared_ptr<cache::PageCache> const & GetPreviewCache();
+
+    /** Return the range of currently visible page objects including the
+        first and last one in that range.
+        @return
+            The returned pair of page object indices is empty when the
+            second index is lower than the first.
+    */
+    Range const & GetVisiblePageRange();
+
+    /** Add a shape to the page.  Typically used from inside
+        PostModelChange().
+    */
+    //    void AddSdrObject (SdrObject& rObject);
+
+    /** Add a listener that is called when the set of visible slides.
+        @param rListener
+            When this method is called multiple times for the same listener
+            the second and all following calls are ignored.  Each listener
+            is added only once.
+    */
+    void AddVisibilityChangeListener (const Link<LinkParamNone*,void>& rListener);
+
+    /** Remove a listener that is called when the set of visible slides changes.
+        @param rListener
+            It is safe to pass a listener that was not added or has been
+            removed previously.  Such calls are ignored.
+    */
+    void RemoveVisibilityChangeListener (const Link<LinkParamNone*,void>& rListener);
+
+    /** The page under the mouse is not highlighted in some contexts.  Call
+        this method on context changes.
+    */
+    void UpdatePageUnderMouse ();
+    void UpdatePageUnderMouse (const Point& rMousePosition);
+    void SetPageUnderMouse (const model::SharedPageDescriptor& rpDescriptor);
+
+    bool SetState (
+        const model::SharedPageDescriptor& rpDescriptor,
+        const model::PageDescriptor::State eState,
+        const bool bStateValue);
+
+    void UpdateOrientation();
+
+    std::shared_ptr<PageObjectPainter> const & GetPageObjectPainter();
+    const std::shared_ptr<LayeredDevice>& GetLayeredDevice() const { return mpLayeredDevice;}
+
+    class DrawLock
+    {
+    public:
+        DrawLock (SlideSorter const & rSlideSorter);
+        ~DrawLock();
+        /** When the DrawLock is disposed then it will not request a repaint
+            on destruction.
+        */
+        void Dispose();
+    private:
+        view::SlideSorterView& mrView;
+        VclPtr<sd::Window> mpWindow;
+    };
+
+    ToolTip& GetToolTip() const;
+
+    virtual void DragFinished (sal_Int8 nDropAction) override;
+
+private:
+    SlideSorter& mrSlideSorter;
+    model::SlideSorterModel& mrModel;
+    bool mbIsDisposed;
+    ::std::unique_ptr<Layouter> mpLayouter;
+    bool mbPageObjectVisibilitiesValid;
+    std::shared_ptr<cache::PageCache> mpPreviewCache;
+    std::shared_ptr<LayeredDevice> mpLayeredDevice;
+    Range maVisiblePageRange;
+    Size maPreviewSize;
+    bool mbPreciousFlagUpdatePending;
+    Layouter::Orientation meOrientation;
+    model::SharedPageDescriptor mpPageUnderMouse;
+    std::shared_ptr<PageObjectPainter> mpPageObjectPainter;
+    vcl::Region maRedrawRegion;
+    SharedILayerPainter mpBackgroundPainter;
+    std::unique_ptr<ToolTip, o3tl::default_delete<ToolTip>> mpToolTip;
+    bool mbIsRearrangePending;
+    ::std::vector<Link<LinkParamNone*,void>> maVisibilityChangeListeners;
+
+    /** Determine the visibility of all page objects.
+    */
+    void DeterminePageObjectVisibilities();
+
+    void UpdatePreciousFlags();
+    void RequestRearrange();
+    void Rearrange();
+};
+
+} // end of namespace ::sd::slidesorter::view
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sd/source/ui/slidesorter/inc/view/SlsILayerPainter.hxx b/sd/source/ui/slidesorter/inc/view/SlsILayerPainter.hxx
new file mode 100644
index 000000000..57b90af0a
--- /dev/null
+++ b/sd/source/ui/slidesorter/inc/view/SlsILayerPainter.hxx
@@ -0,0 +1,53 @@
+/* -*- 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>
+
+class OutputDevice;
+namespace tools { class Rectangle; }
+
+namespace sd::slidesorter::view {
+
+class ILayerInvalidator
+{
+public:
+    virtual ~ILayerInvalidator() {}
+
+    virtual void Invalidate (const ::tools::Rectangle& rInvalidationBox) = 0;
+};
+typedef std::shared_ptr<ILayerInvalidator> SharedILayerInvalidator;
+
+class ILayerPainter
+{
+public:
+    virtual ~ILayerPainter() {}
+
+    virtual void SetLayerInvalidator (
+        const SharedILayerInvalidator& rpInvalidator) = 0;
+    virtual void Paint (
+        OutputDevice& rDevice,
+        const ::tools::Rectangle& rRepaintArea) = 0;
+};
+typedef std::shared_ptr<ILayerPainter> SharedILayerPainter;
+
+} // end of namespace ::sd::slidesorter::view
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sd/source/ui/slidesorter/inc/view/SlsInsertAnimator.hxx b/sd/source/ui/slidesorter/inc/view/SlsInsertAnimator.hxx
new file mode 100644
index 000000000..c74d06cb9
--- /dev/null
+++ b/sd/source/ui/slidesorter/inc/view/SlsInsertAnimator.hxx
@@ -0,0 +1,59 @@
+/* -*- 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 <controller/SlsAnimator.hxx>
+#include <memory>
+
+namespace sd::slidesorter::view
+{
+class InsertPosition;
+
+/** Animate the positions of page objects to make room at the insert
+    position while a move or copy operation takes place.
+*/
+class InsertAnimator
+{
+public:
+    explicit InsertAnimator(SlideSorter& rSlideSorter);
+    InsertAnimator(const InsertAnimator&) = delete;
+    InsertAnimator& operator=(const InsertAnimator&) = delete;
+
+    /** Set the position at which we have to make room for the display of an
+        icon.
+    */
+    void SetInsertPosition(const InsertPosition& rInsertPosition);
+
+    /** Restore the normal position of all page objects.
+        @param eMode
+            This flag controls whether to start an animation that ends in the
+            normal positions of all slides (AM_Animated) or to restore the
+            normal positions immediately (AM_Immediate).
+    */
+    void Reset(const controller::Animator::AnimationMode eMode);
+
+private:
+    class Implementation;
+    std::shared_ptr<Implementation> mpImplementation;
+};
+
+} // end of namespace ::sd::slidesorter::view
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sd/source/ui/slidesorter/inc/view/SlsInsertionIndicatorOverlay.hxx b/sd/source/ui/slidesorter/inc/view/SlsInsertionIndicatorOverlay.hxx
new file mode 100644
index 000000000..3f4cc2218
--- /dev/null
+++ b/sd/source/ui/slidesorter/inc/view/SlsInsertionIndicatorOverlay.hxx
@@ -0,0 +1,101 @@
+/* -*- 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 <view/SlsILayerPainter.hxx>
+#include <controller/SlsTransferableData.hxx>
+
+#include <tools/gen.hxx>
+#include <vcl/bitmapex.hxx>
+#include <memory>
+#include <vector>
+
+class OutputDevice;
+class SdTransferable;
+
+namespace sd::slidesorter { class SlideSorter; }
+
+namespace sd::slidesorter::view {
+
+class FramePainter;
+
+/** The insertion indicator is painted as a vertical or horizontal bar
+    in the space between slides.
+*/
+class InsertionIndicatorOverlay final
+    : public ILayerPainter,
+      public std::enable_shared_from_this<InsertionIndicatorOverlay>
+{
+public:
+    InsertionIndicatorOverlay (SlideSorter& rSlideSorter);
+    virtual ~InsertionIndicatorOverlay() override;
+
+    virtual void SetLayerInvalidator (const SharedILayerInvalidator& rpInvalidator) override;
+
+    void Create (const SdTransferable* pTransferable);
+
+    /** Given a position in model coordinates this method calculates the
+        insertion marker both as an index in the document and as a location
+        used for drawing the insertion indicator.
+    */
+    void SetLocation (const Point& rPosition);
+
+    Size GetSize() const;
+
+    virtual void Paint (
+        OutputDevice& rDevice,
+        const ::tools::Rectangle& rRepaintArea) override;
+
+    bool IsVisible() const { return mbIsVisible;}
+    void Hide();
+    void Show();
+
+    ::tools::Rectangle GetBoundingBox() const;
+
+private:
+    SlideSorter& mrSlideSorter;
+    bool mbIsVisible;
+    SharedILayerInvalidator mpLayerInvalidator;
+    // Center of the insertion indicator.
+    Point maLocation;
+    BitmapEx maIcon;
+    std::unique_ptr<FramePainter> mpShadowPainter;
+
+    Point PaintRepresentatives (
+        OutputDevice& rContent,
+        const Size& rPreviewSize,
+        const sal_Int32 nOffset,
+        const ::std::vector<controller::TransferableData::Representative>& rPages) const;
+    void PaintPageCount (
+        OutputDevice& rDevice,
+        const sal_Int32 nSelectionCount,
+        const Size& rPreviewSize,
+        const Point& rFirstPageOffset) const;
+    /** Setup the insertion indicator by creating the icon.  It consists of
+        scaled down previews of some of the selected pages.
+    */
+    void Create (
+        const ::std::vector<controller::TransferableData::Representative>& rPages,
+        const sal_Int32 nSelectionCount);
+};
+
+} // end of namespace ::sd::slidesorter::view
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sd/source/ui/slidesorter/inc/view/SlsLayouter.hxx b/sd/source/ui/slidesorter/inc/view/SlsLayouter.hxx
new file mode 100644
index 000000000..b91ae83c5
--- /dev/null
+++ b/sd/source/ui/slidesorter/inc/view/SlsLayouter.hxx
@@ -0,0 +1,237 @@
+/* -*- 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 <vcl/vclptr.hxx>
+#include <tools/gen.hxx>
+#include <sal/types.h>
+#include <memory>
+
+namespace sd { class Window; }
+namespace sd::slidesorter::model { class SlideSorterModel; }
+namespace sd::slidesorter::view { class PageObjectLayouter; }
+namespace sd::slidesorter::view { class Theme; }
+
+namespace sd::slidesorter::view {
+
+class InsertPosition;
+
+/** Calculate the size and position of page objects displayed by a slide
+    sorter.  The layouter takes into account various input values:
+    1.) Size of the window in which the slide sorter is displayed.
+    2.) Desired and minimal and maximal widths of page objects.
+    3.) Minimal and maximal number of columns.
+    4.) Vertical and horizontal gaps between objects in adjacent columns.
+    5.) Borders around every page object.
+    6.) Vertical and horizontal borders between enclosing page and outer
+        page objects.
+    From these, it calculates various output values:
+    1.) The width of page objects.
+    2.) The number of columns.
+    3.) The size of the enclosing page.
+
+    <p>Sizes and lengths are all in pixel except where explicitly stated
+    otherwise.</p>
+
+    <p>The GetIndex... methods may return indices that are larger than or
+    equal to (zero based) the number of pages.  This is so because the
+    number of pages is not known to the class instances.  Indices are
+    calculated with reference to the general grid layout of page
+    objects.</p>
+*/
+class Layouter
+{
+public:
+    enum Orientation { HORIZONTAL, VERTICAL, GRID };
+
+    Layouter (
+        sd::Window *rpWindow,
+        const std::shared_ptr<Theme>& rpTheme);
+    ~Layouter();
+
+    std::shared_ptr<PageObjectLayouter> const & GetPageObjectLayouter() const;
+    /** Set the interval of valid column counts.  When nMinimalColumnCount
+        <= nMaximalColumnCount is not fulfilled then the call is ignored.
+        @param nMinimalColumnCount
+            The default value is 1.  The question whether higher values make
+            any sense is left to the caller.
+        @param nMaximalColumnCount
+            The default value is 5.
+    */
+    void SetColumnCount (sal_Int32 nMinimalColumnCount,
+        sal_Int32 nMaximalColumnCount);
+
+    /** Central method of this class.  It takes the input values and
+        calculates the output values.  Both given sizes must not be 0 in any
+        dimension or the call is ignored.
+        @param eOrientation
+            This defines the generally layout and specifies whether there may
+            be more than one row or more than one column.
+        @param rWindowSize
+            The size of the window in pixels that the slide sorter is
+            displayed in.  This can differ from the size of mpWindow during
+            detection of whether or not the scroll bars should be visible.
+        @param rPreviewModelSize
+            Size of each page in model coordinates.
+        @param rpWindow
+            The map mode of this window is adapted to the new layout of the
+            page objects.
+        @return
+            The return value indicates whether the Get... methods can be
+            used to obtain valid values (<TRUE/>).
+    */
+    bool Rearrange (
+        const Orientation eOrientation,
+        const Size& rWindowSize,
+        const Size& rPreviewModelSize,
+        const sal_uInt32 nPageCount);
+
+    /** Return the number of columns.
+    */
+    sal_Int32 GetColumnCount() const;
+
+    sal_Int32 GetIndex (const sal_Int32 nRow, const sal_Int32 nColumn) const;
+
+    Size const & GetPageObjectSize() const;
+
+    /** Return the bounding box in window coordinates of the nIndex-th page
+        object.
+    */
+    ::tools::Rectangle GetPageObjectBox (
+        const sal_Int32 nIndex,
+        const bool bIncludeBorderAndGap) const;
+
+    /** Return the bounding box in model coordinates of the page that
+        contains the given amount of page objects.
+    */
+    ::tools::Rectangle GetTotalBoundingBox() const;
+
+    /** Return the index of the first fully or partially visible page
+        object.  This takes into account only the vertical dimension.
+        @return
+            The second index may be larger than the number of existing
+            page objects.
+    */
+    Range GetRangeOfVisiblePageObjects (const ::tools::Rectangle& rVisibleArea) const;
+
+    /** Return the index of the page object that is rendered at the given
+        point.
+        @param rPosition
+            The position is expected to be in model coordinates relative to
+            the page origin.
+        @param bIncludePageBorders
+            When <TRUE/> then include the page borders into the calculation,
+            i.e. when a point lies in the border of a page object but not on
+            the actual page area the index of that page is returned;
+            otherwise -1 would be returned to indicate that no page object
+            has been hit.
+        @param bClampToValidRange
+            When <TRUE/> then values outside the valid range [0,mnPageCount)
+            are mapped to 0 (when smaller than 0) or mnPageCount-1 when
+            equal to or larger than mnPageCount.
+            When <FALSE/> then -1 is returned for values outside the valid range.
+        @return
+            The returned index may be larger than the number of existing
+            page objects.
+    */
+    sal_Int32 GetIndexAtPoint (
+        const Point& rModelPosition,
+        const bool bIncludePageBorders,
+        const bool bClampToValidRange = true) const;
+
+    /** Return an object that describes the logical and visual properties of
+        where to do an insert operation when the user would release the
+        mouse button at the given position after a drag operation and of
+        where and how to display an insertion indicator.
+        @param rModelPosition
+            The position in the model coordinate system for which to
+            determine the insertion page index.  The position does not have
+            to be over a page object to return a valid value.
+        @param rIndicatorSize
+            The size of the insertion indicator.  This size is used to adapt
+            the location when at the left or right of a row or at the top or
+            bottom of a column.
+        @param rModel
+            The model is used to get access to the selection states of the
+            pages.  This in turn is used to determine the visual bounding
+            boxes.
+    */
+    InsertPosition GetInsertPosition (
+        const Point& rModelPosition,
+        const Size& rIndicatorSize,
+        model::SlideSorterModel const & rModel) const;
+
+    Range GetValidHorizontalSizeRange() const;
+    Range GetValidVerticalSizeRange() const;
+
+    class Implementation;
+
+private:
+    std::unique_ptr<Implementation> mpImplementation;
+    VclPtr<sd::Window> mpWindow;
+};
+
+/** Collect all values concerning the logical and visual properties of the
+    insertion position that is used for drag-and-drop and copy-and-paste.
+*/
+class InsertPosition
+{
+public:
+    InsertPosition();
+    bool operator== (const InsertPosition& rInsertPosition) const;
+    bool operator!= (const InsertPosition& rInsertPosition) const;
+
+    void SetLogicalPosition (
+        const sal_Int32 nRow,
+        const sal_Int32 nColumn,
+        const sal_Int32 nIndex,
+        const bool bIsAtRunStart,
+        const bool bIsAtRunEnd,
+        const bool bIsExtraSpaceNeeded);
+    void SetGeometricalPosition(
+        const Point& rLocation,
+        const Point& rLeadingOffset,
+        const Point& rTrailingOffset);
+
+    sal_Int32 GetRow() const { return mnRow; }
+    sal_Int32 GetColumn() const { return mnColumn; }
+    sal_Int32 GetIndex() const { return mnIndex; }
+    const Point& GetLocation() const { return maLocation; }
+    const Point& GetLeadingOffset() const { return maLeadingOffset; }
+    const Point& GetTrailingOffset() const { return maTrailingOffset; }
+    bool IsAtRunStart() const { return mbIsAtRunStart; }
+    bool IsAtRunEnd() const { return mbIsAtRunEnd; }
+    bool IsExtraSpaceNeeded() const { return mbIsExtraSpaceNeeded; }
+
+private:
+    sal_Int32 mnRow;
+    sal_Int32 mnColumn;
+    sal_Int32 mnIndex;
+    bool mbIsAtRunStart : 1;
+    bool mbIsAtRunEnd : 1;
+    bool mbIsExtraSpaceNeeded : 1;
+    Point maLocation;
+    Point maLeadingOffset;
+    Point maTrailingOffset;
+};
+
+} // end of namespace ::sd::slidesorter::view
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sd/source/ui/slidesorter/inc/view/SlsPageObjectLayouter.hxx b/sd/source/ui/slidesorter/inc/view/SlsPageObjectLayouter.hxx
new file mode 100644
index 000000000..8bb77a988
--- /dev/null
+++ b/sd/source/ui/slidesorter/inc/view/SlsPageObjectLayouter.hxx
@@ -0,0 +1,144 @@
+/* -*- 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 <model/SlsSharedPageDescriptor.hxx>
+#include <tools/gen.hxx>
+#include <vcl/image.hxx>
+
+namespace vcl { class Font; }
+namespace sd { class Window; }
+
+namespace sd::slidesorter::view {
+
+/** In contrast to the Layouter that places page objects in the view, the
+    PageObjectLayouter places the parts of individual page objects like page
+    number area, borders, preview.
+*/
+class PageObjectLayouter
+{
+public:
+    /** Create a new PageObjectLayouter object.
+        @param rPageObjectSize
+            In general either the width or the height will be 0 in order to
+            signal that this size component has to be calculated from the other.
+            This calculation will make the preview as large as possible.
+        @param nPageCount
+            The page count is used to determine how wide the page number
+            area has to be, how many digits to except for the largest page number.
+    */
+    PageObjectLayouter(
+        const Size& rPageObjectWindowSize,
+        const Size& rPreviewModelSize,
+        sd::Window *pWindow,
+        const sal_Int32 nPageCount);
+    ~PageObjectLayouter();
+
+    enum class Part {
+        // The focus indicator is painted outside the actual page object.
+        FocusIndicator,
+        // This is the outer bounding box that includes the preview, page
+        // number, title.
+        PageObject,
+        // Bounding box of the actual preview.
+        Preview,
+        // Bounding box of the page number.
+        PageNumber,
+        // Indicator whether or not there is a slide transition associated
+        // with this slide.
+        TransitionEffectIndicator,
+        // Indicator whether or not there is a custom animation associated
+        // with this slide.
+        CustomAnimationEffectIndicator
+    };
+    /** Two coordinate systems are supported.  They differ only in
+        translation not in scale.  Both relate to pixel values in the window.
+        A position in the model coordinate system does not change when the window content is
+        scrolled up or down.  In the window coordinate system (relative
+        to the top left point of the window)scrolling leads to different values.
+    */
+    enum CoordinateSystem {
+        WindowCoordinateSystem,
+        ModelCoordinateSystem
+    };
+
+    /** Return the bounding box of the page object or one of its graphical
+        parts.
+        @param rWindow
+            This device is used to translate between model and window
+            coordinates.
+        @param rpPageDescriptor
+            The page for which to calculate the bounding box.  This may be
+            NULL.  When it is NULL then a generic bounding box is calculated
+            for the location (0,0).
+        @param ePart
+            The part of the page object for which to return the bounding
+            box.
+        @param eCoordinateSystem
+            The bounding box can be returned in model and in pixel
+            (window) coordinates.
+        @param bIgnoreLocation
+            Return a position ignoring the slides' location, ie. as if
+            we were the first slide.
+    */
+    ::tools::Rectangle GetBoundingBox (
+        const model::SharedPageDescriptor& rpPageDescriptor,
+        const Part ePart,
+        const CoordinateSystem eCoordinateSystem,
+        bool bIgnoreLocation = false);
+
+    /// the size of the embedded preview: position independent, in window coordinate system
+    Size GetPreviewSize();
+
+    /// the maximum size of each tile, also position independent, in window coordinate system
+    Size GetGridMaxSize();
+
+    const Image& GetTransitionEffectIcon() const { return maTransitionEffectIcon;}
+    const Image& GetCustomAnimationEffectIcon() const { return maCustomAnimationEffectIcon;}
+
+private:
+    ::tools::Rectangle GetBoundingBox (
+        const Point& rPageObjectLocation,
+        const Part ePart,
+        const CoordinateSystem eCoordinateSystem);
+
+private:
+    VclPtr<sd::Window> mpWindow;
+    ::tools::Rectangle maFocusIndicatorBoundingBox;
+    ::tools::Rectangle maPageObjectBoundingBox;
+    ::tools::Rectangle maPageNumberAreaBoundingBox;
+    ::tools::Rectangle maPreviewBoundingBox;
+    ::tools::Rectangle maTransitionEffectBoundingBox;
+    ::tools::Rectangle maCustomAnimationEffectBoundingBox;
+    const Image maTransitionEffectIcon;
+    const Image maCustomAnimationEffectIcon;
+    const std::shared_ptr<vcl::Font> mpPageNumberFont;
+
+    Size GetPageNumberAreaSize (const int nPageCount);
+    ::tools::Rectangle CalculatePreviewBoundingBox (
+        Size& rPageObjectSize,
+        const Size& rPreviewModelSize,
+        const sal_Int32 nPageNumberAreaWidth,
+        const sal_Int32 nFocusIndicatorWidth);
+};
+
+} // end of namespace ::sd::slidesorter::view
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sd/source/ui/slidesorter/inc/view/SlsPageObjectPainter.hxx b/sd/source/ui/slidesorter/inc/view/SlsPageObjectPainter.hxx
new file mode 100644
index 000000000..747c09500
--- /dev/null
+++ b/sd/source/ui/slidesorter/inc/view/SlsPageObjectPainter.hxx
@@ -0,0 +1,119 @@
+/* -*- 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 <model/SlsSharedPageDescriptor.hxx>
+#include <view/SlsTheme.hxx>
+#include <memory>
+
+namespace sd::slidesorter::cache { class PageCache; }
+namespace sd::slidesorter { class SlideSorter; }
+
+namespace sd::slidesorter::view {
+
+class Layouter;
+class PageObjectLayouter;
+class FramePainter;
+
+class PageObjectPainter
+{
+public:
+    PageObjectPainter (const SlideSorter& rSlideSorter);
+    ~PageObjectPainter();
+
+    void PaintPageObject (
+        OutputDevice& rDevice,
+        const model::SharedPageDescriptor& rpDescriptor);
+
+    /** Called when the theme changes, either because it is replaced with
+        another or because the system colors have changed.  So, even when
+        the given theme is the same object as the one already in use by this
+        painter everything that depends on the theme is updated.
+    */
+    void SetTheme (const std::shared_ptr<view::Theme>& rpTheme);
+
+    /** Return a preview bitmap for the given page descriptor.  When the
+        page is excluded from the show then the preview is marked
+        accordingly.
+        @rpDescriptor
+            Defines the page for which to return the preview.
+        @pReferenceDevice
+            When not <NULL/> then this reference device is used to created a
+            compatible bitmap.
+        @return
+            The returned bitmap may have a different size then the preview area.
+    */
+    BitmapEx GetPreviewBitmap (
+        const model::SharedPageDescriptor& rpDescriptor,
+        const OutputDevice* pReferenceDevice) const;
+
+private:
+    const Layouter& mrLayouter;
+    std::shared_ptr<cache::PageCache> mpCache;
+    std::shared_ptr<view::Theme> mpTheme;
+    std::shared_ptr<vcl::Font> mpPageNumberFont;
+    std::unique_ptr<FramePainter> mpShadowPainter;
+    std::unique_ptr<FramePainter> mpFocusBorderPainter;
+
+    void PaintBackground (
+        PageObjectLayouter *pPageObjectLayouter,
+        OutputDevice& rDevice,
+        const model::SharedPageDescriptor& rpDescriptor) const;
+    void PaintPreview (
+        PageObjectLayouter *pPageObjectLayouter,
+        OutputDevice& rDevice,
+        const model::SharedPageDescriptor& rpDescriptor) const;
+    void PaintPageNumber (
+        PageObjectLayouter *pPageObjectLayouter,
+        OutputDevice& rDevice,
+        const model::SharedPageDescriptor& rpDescriptor) const;
+    static void PaintTransitionEffect (
+        PageObjectLayouter *pPageObjectLayouter,
+        OutputDevice& rDevice,
+        const model::SharedPageDescriptor& rpDescriptor);
+    static void PaintCustomAnimationEffect (
+        PageObjectLayouter *pPageObjectLayouter,
+        OutputDevice& rDevice,
+        const model::SharedPageDescriptor& rpDescriptor);
+    void PaintBorder (
+        OutputDevice& rDevice,
+        const Theme::GradientColorType eColorType,
+        const ::tools::Rectangle& rBox) const;
+    void PaintBackgroundDetail(
+        PageObjectLayouter *pPageObjectLayouter,
+        OutputDevice& rDevice,
+        const model::SharedPageDescriptor& rpDescriptor) const;
+
+    static BitmapEx CreateMarkedPreview(
+        const Size& rSize,
+        const BitmapEx& rPreview,
+        const BitmapEx& rOverlay,
+        const OutputDevice* pReferenceDevice);
+
+    /** Update the local pointer to the page object layouter to the
+        one owned by the general layouter.
+        Return <TRUE/> when after the call we have a valid page object layouter.
+    */
+    bool UpdatePageObjectLayouter();
+};
+
+} // end of namespace sd::slidesorter::view
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sd/source/ui/slidesorter/inc/view/SlsTheme.hxx b/sd/source/ui/slidesorter/inc/view/SlsTheme.hxx
new file mode 100644
index 000000000..efb7b2a3e
--- /dev/null
+++ b/sd/source/ui/slidesorter/inc/view/SlsTheme.hxx
@@ -0,0 +1,135 @@
+/* -*- 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 <vcl/bitmapex.hxx>
+#include <tools/color.hxx>
+
+#include <memory>
+
+namespace vcl { class Font; }
+
+namespace sd::slidesorter::controller { class Properties; }
+
+namespace sd::slidesorter::view {
+
+const int Theme_FocusIndicatorWidth = 3;
+
+/** Collection of colors and styles that are used to paint the slide sorter
+    view.
+*/
+class Theme
+{
+public:
+    Theme (const std::shared_ptr<controller::Properties>& rpProperties);
+
+    /** Call this method to update some colors as response to a change of
+        a system color change.
+    */
+    void Update (
+        const std::shared_ptr<controller::Properties>& rpProperties);
+
+    //    BitmapEx GetInsertIndicatorIcon() const;
+
+    enum FontType {
+        Font_PageNumber,
+        Font_PageCount
+    };
+    static std::shared_ptr<vcl::Font> GetFont (
+        const FontType eType,
+        const OutputDevice& rDevice);
+
+    enum ColorType {
+        Color_Background,
+        Color_PageNumberDefault,
+        Color_PageNumberHover,
+        Color_PageNumberHighContrast,
+        Color_PageNumberBrightBackground,
+        Color_PageNumberDarkBackground,
+        Color_Selection,
+        Color_PreviewBorder,
+        Color_PageCountFontColor,
+        ColorType_Size_
+    };
+    Color GetColor (const ColorType eType);
+
+    enum GradientColorType {
+        Gradient_NormalPage,
+        Gradient_SelectedPage,
+        Gradient_SelectedAndFocusedPage,
+        Gradient_MouseOverPage,
+        Gradient_MouseOverSelected,
+        Gradient_MouseOverSelectedAndFocusedPage,
+        Gradient_FocusedPage,
+        GradientColorType_Size_
+    };
+    enum class GradientColorClass {
+        Border1,
+        Border2,
+        Fill1,
+        Fill2
+    };
+    Color GetGradientColor (
+        const GradientColorType eType,
+        const GradientColorClass eClass);
+    void SetGradient (
+        const GradientColorType eType,
+        const Color aBaseColor,
+        const sal_Int32 nSaturationOverride,
+        const sal_Int32 nBrightnessOverride,
+        const sal_Int32 nFillStartOffset,
+        const sal_Int32 nFillEndOffset,
+        const sal_Int32 nBorderStartOffset,
+        const sal_Int32 nBorderEndOffset);
+
+    enum IconType
+    {
+        Icon_RawShadow,
+        Icon_RawInsertShadow,
+        Icon_HideSlideOverlay,
+        Icon_FocusBorder,
+        IconType_Size_
+    };
+    const BitmapEx& GetIcon (const IconType eType);
+
+private:
+    class GradientDescriptor
+    {
+    public:
+        Color maFillColor1;
+        Color maFillColor2;
+        Color maBorderColor1;
+        Color maBorderColor2;
+    };
+    Color maBackgroundColor;
+    ::std::vector<GradientDescriptor> maGradients;
+    ::std::vector<BitmapEx> maIcons;
+    ::std::vector<Color> maColor;
+
+    GradientDescriptor& GetGradient (const GradientColorType eType);
+    /** Guarded initialization of the specified icon in the maIcons
+        container.
+    */
+    void InitializeIcon(const IconType eType, const OUString& rResourceId);
+};
+
+} // end of namespace ::sd::slidesorter::view
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sd/source/ui/slidesorter/inc/view/SlsToolTip.hxx b/sd/source/ui/slidesorter/inc/view/SlsToolTip.hxx
new file mode 100644
index 000000000..6c3557e64
--- /dev/null
+++ b/sd/source/ui/slidesorter/inc/view/SlsToolTip.hxx
@@ -0,0 +1,75 @@
+/* -*- 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 <model/SlsSharedPageDescriptor.hxx>
+#include <rtl/ustring.hxx>
+#include <vcl/timer.hxx>
+
+namespace sd::slidesorter
+{
+class SlideSorter;
+}
+
+namespace sd::slidesorter::view
+{
+/** Manage the display of tool tips.  The tool tip text changes when the
+    mouse is moved from slide to slide or from button to button.
+    After the mouse enters a slide the first display of the tool tip is
+    delayed for a short time in order to not draw attention from the slide
+    or its button bar.
+*/
+class ToolTip
+{
+public:
+    ToolTip(SlideSorter& rSlideSorter);
+    ~ToolTip();
+
+    /** Set a new page.  This modifies the default help text.  After a page
+        change a timer is started to delay the display of the tool tip for
+        the new page.
+        @param rpPage
+            When this is empty then the tool tip is hidden.
+    */
+    void SetPage(const model::SharedPageDescriptor& rpPage);
+
+    /** Hide the tool tip.
+        @return
+            Returns whether the tool tip was visible at the time this method
+            was called.
+    */
+    bool Hide();
+
+private:
+    SlideSorter& mrSlideSorter;
+    model::SharedPageDescriptor mpDescriptor;
+    OUString msCurrentHelpText;
+    void* mnHelpWindowHandle;
+    Timer maShowTimer;
+    Timer maHiddenTimer;
+
+    void DoShow();
+
+    DECL_LINK(DelayTrigger, Timer*, void);
+};
+
+} // end of namespace ::sd::slidesorter::view
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */