frame.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * 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
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#ifndef INCLUDED_SW_SOURCE_CORE_INC_FRAME_HXX
#define INCLUDED_SW_SOURCE_CORE_INC_FRAME_HXX
 
#include <drawinglayer/primitive2d/Primitive2DContainer.hxx>
#include <editeng/borderline.hxx>
#include <svl/poolitem.hxx>
#include <swtypes.hxx>
#include <swrect.hxx>
#include <calbck.hxx>
#include <svl/SfxBroadcaster.hxx>
#include <o3tl/typed_flags_set.hxx>
#include <com/sun/star/style/TabStop.hpp>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <vcl/outdev.hxx>
 
#include <memory>
#include <optional>
 
namespace drawinglayer::processor2d { class BaseProcessor2D; }
 
class SwLayoutFrame;
class SwRootFrame;
class SwPageFrame;
class SwBodyFrame;
class SwFlyFrame;
class SwSectionFrame;
class SwFootnoteFrame;
class SwFootnoteBossFrame;
class SwTabFrame;
class SwRowFrame;
class SwContentFrame;
class SwAttrSet;
class Color;
class SwBorderAttrs;
class SwCache;
class SvxBrushItem;
class SvxFormatBreakItem;
class SwFormatPageDesc;
class SwSelectionList;
struct SwPosition;
struct SwCursorMoveState;
class SwFormat;
class SwPrintData;
class SwSortedObjs;
class SwAnchoredObject;
enum class SvxFrameDirection;
class IDocumentDrawModelAccess;
class SwTextFrame;
 
// Each FrameType is represented here as a bit.
// The bits must be set in a way that it can be determined with masking of
// which kind of FrameType an instance is _and_ from what classes it was derived.
// Each frame has in its base class a member that must be set by the
// constructors accordingly.
enum class SwFrameType
{
    None        = 0x0000,
    Root        = 0x0001,
    Page        = 0x0002,
    Column      = 0x0004,
    Header      = 0x0008,
    Footer      = 0x0010,
    FtnCont     = 0x0020,
    Ftn         = 0x0040,
    Body        = 0x0080,
    Fly         = 0x0100,
    Section     = 0x0200,
//  UNUSED      0x0400
    Tab         = 0x0800,
    Row         = 0x1000,
    Cell        = 0x2000,
    Txt         = 0x4000,
    NoTxt       = 0x8000,
};
 
namespace o3tl
{
    template<> struct typed_flags<SwFrameType> : is_typed_flags<SwFrameType, 0xfbff> {};
};
 
// for internal use some common combinations
#define FRM_LAYOUT      SwFrameType(0x3bFF)
#define FRM_ALL         SwFrameType(0xfbff)
#define FRM_CNTNT       (SwFrameType::Txt | SwFrameType::NoTxt)
#define FRM_FTNBOSS     (SwFrameType::Page | SwFrameType::Column)
#define FRM_ACCESSIBLE  (SwFrameType::Root | SwFrameType::Page | SwFrameType::Header | SwFrameType::Footer | SwFrameType::Ftn | SwFrameType::Fly | SwFrameType::Tab | SwFrameType::Cell | SwFrameType::Txt)
#define FRM_NEIGHBOUR   (SwFrameType::Column | SwFrameType::Cell)
#define FRM_NOTE_VERT   (SwFrameType::FtnCont | SwFrameType::Ftn | SwFrameType::Section | SwFrameType::Tab | SwFrameType::Row | SwFrameType::Cell | SwFrameType::Txt)
#define FRM_HEADFOOT    (SwFrameType::Header | SwFrameType::Footer)
#define FRM_BODYFTNC    (SwFrameType::FtnCont | SwFrameType::Body)
 
// for GetNextLeaf/GetPrevLeaf.
enum MakePageType
{
    MAKEPAGE_NONE,      // do not create page/footnote
    MAKEPAGE_APPEND,    // only append page if needed
    MAKEPAGE_INSERT,    // add or append page if needed
    MAKEPAGE_FTN,       // add footnote if needed
    MAKEPAGE_NOSECTION  // Don't create section frames
};
 
namespace drawinglayer::attribute {
    class SdrAllFillAttributesHelper;
    typedef std::shared_ptr< SdrAllFillAttributesHelper > SdrAllFillAttributesHelperPtr;
}
 
class SAL_DLLPUBLIC_RTTI SwFrameAreaDefinition
{
private:
    friend void FriendHackInvalidateRowFrame(SwFrameAreaDefinition &);
 
    // The absolute position and size of the SwFrame in the document.
    // This values are set by the layouter implementations
    SwRect  maFrameArea;
 
    // The 'inner' Frame Area defined by a SwRect relative to FrameArea:
    // When identical to FrameArea, Pos() will be (0, 0) and Size identical.
    SwRect  maFramePrintArea;
 
    // bitfield
    bool mbFrameAreaPositionValid   : 1;
    bool mbFrameAreaSizeValid       : 1;
    bool mbFramePrintAreaValid      : 1;
 
    // #i65250#
    // frame ID is now in general available - used for layout loop control
    static sal_uInt32 snLastFrameId;
    const  sal_uInt32 mnFrameId;
 
protected:
    // write access to mb*Valid flags
    void setFrameAreaPositionValid(bool bNew);
    void setFrameAreaSizeValid(bool bNew);
    void setFramePrintAreaValid(bool bNew);
 
public:
    SwFrameAreaDefinition();
    virtual ~SwFrameAreaDefinition();
 
    // read access to mb*Valid flags
    bool isFrameAreaPositionValid() const { return mbFrameAreaPositionValid; }
    bool isFrameAreaSizeValid() const { return mbFrameAreaSizeValid; }
    bool isFramePrintAreaValid() const { return mbFramePrintAreaValid; }
 
    // syntactic sugar: test whole FrameAreaDefinition
    bool isFrameAreaDefinitionValid() const { return isFrameAreaPositionValid() && isFrameAreaSizeValid() && isFramePrintAreaValid(); }
 
    // #i65250#
    sal_uInt32 GetFrameId() const { return mnFrameId; }
 
    // read accesses to FrameArea definitions - only const access allowed.
    // Do *not* const_cast results, it is necessary to track changes. use
    // the below offered WriteAccess helper classes instead
    const SwRect& getFrameArea() const { return maFrameArea; }
    const SwRect& getFramePrintArea() const { return maFramePrintArea; }
 
    // helper class(es) for FrameArea manipulation. These
    // have to be used to apply changes to FrameAreas. They hold a copy of the
    // SwRect for manipulation. It gets written back at destruction. Thus, this
    // mechanism depends on scope usage, take care. It prevents errors using
    // different instances of SwFrame in get/set methods which is more safe
    class FrameAreaWriteAccess : public SwRect
    {
    private:
        SwFrameAreaDefinition&        mrTarget;
 
        FrameAreaWriteAccess(const FrameAreaWriteAccess&) = delete;
        FrameAreaWriteAccess& operator=(const FrameAreaWriteAccess&) = delete;
 
    public:
        FrameAreaWriteAccess(SwFrameAreaDefinition& rTarget) : SwRect(rTarget.getFrameArea()), mrTarget(rTarget) {}
        ~FrameAreaWriteAccess();
        void setSwRect(const SwRect& rNew) { *static_cast< SwRect* >(this) = rNew; }
    };
 
    // same helper for FramePrintArea
    class FramePrintAreaWriteAccess : public SwRect
    {
    private:
        SwFrameAreaDefinition&        mrTarget;
 
        FramePrintAreaWriteAccess(const FramePrintAreaWriteAccess&) = delete;
        FramePrintAreaWriteAccess& operator=(const FramePrintAreaWriteAccess&) = delete;
 
    public:
        FramePrintAreaWriteAccess(SwFrameAreaDefinition& rTarget) : SwRect(rTarget.getFramePrintArea()), mrTarget(rTarget) {}
        ~FramePrintAreaWriteAccess();
        void setSwRect(const SwRect& rNew) { *static_cast< SwRect* >(this) = rNew; }
    };
 
    // RotateFlyFrame3 - Support for Transformations
    // Hand out the Transformations for the current FrameAreaDefinition
    // for the FrameArea and FramePrintArea.
    // FramePrintArea is not relative to FrameArea in this
    // transformation representation (to make it easier to use and understand).
    // There is no 'set' method since SwFrame is a layout object. For
    // some cases rotation will be included (used for SwGrfNode in inner
    // SwFrame of a SwFlyFrame)
    virtual basegfx::B2DHomMatrix getFrameAreaTransformation() const;
    virtual basegfx::B2DHomMatrix getFramePrintAreaTransformation() const;
 
    // RotateFlyFrame3 - Support for Transformations
    // Modify current transformations by applying given translation
    virtual void transform_translate(const Point& rOffset);
};
 
class TransformableSwFrame
{
private:
    // The SwFrameAreaDefinition to work on
    SwFrameAreaDefinition&  mrSwFrameAreaDefinition;
 
    // FrameAreaTransformation and FramePrintAreaTransformation
    // !identity when needed (translate/scale is used (e.g. rotation))
    basegfx::B2DHomMatrix   maFrameAreaTransformation;
    basegfx::B2DHomMatrix   maFramePrintAreaTransformation;
 
public:
    TransformableSwFrame(SwFrameAreaDefinition& rSwFrameAreaDefinition)
    :   mrSwFrameAreaDefinition(rSwFrameAreaDefinition),
        maFrameAreaTransformation(),
        maFramePrintAreaTransformation()
    {
    }
 
    // get SwFrameArea in transformation form
    const basegfx::B2DHomMatrix& getLocalFrameAreaTransformation() const
    {
        return maFrameAreaTransformation;
    }
 
    // get SwFramePrintArea in transformation form
    const basegfx::B2DHomMatrix& getLocalFramePrintAreaTransformation() const
    {
        return maFramePrintAreaTransformation;
    }
 
    // Helpers to re-create the untransformed SwRect(s) originally
    // in the SwFrameAreaDefinition, based on the current Transformations.
    SwRect getUntransformedFrameArea() const;
    SwRect getUntransformedFramePrintArea() const;
 
    // Helper method to re-create FrameAreaTransformations based on the
    // current FrameAreaDefinition transformed by given rotation and Center
    void createFrameAreaTransformations(
        double fRotation,
        const basegfx::B2DPoint& rCenter);
 
    // Tooling method to reset the SwRect(s) in the current
    // SwFrameAreaDefinition which are already adapted to
    // Transformation back to the untransformed state, using
    // the getUntransformedFrame*Area calls above when needed.
    // Only the SwRect(s) are changed back, not the transformations.
    void restoreFrameAreas();
 
    // Re-Creates the SwRect(s) as BoundAreas based on the current
    // set Transformations.
    void adaptFrameAreasToTransformations();
 
    // Modify current definitions by applying the given transformation
    void transform(const basegfx::B2DHomMatrix& aTransform);
};
 
enum class SwFrameInvFlags : sal_uInt8
{
    NONE = 0x00,
    InvalidatePrt = 0x01,
    InvalidateSize = 0x02,
    InvalidatePos = 0x04,
    SetCompletePaint = 0x08,
    NextInvalidatePos = 0x10,
    NextSetCompletePaint = 0x20,
};
 
namespace o3tl {
    template<> struct typed_flags<SwFrameInvFlags> : is_typed_flags<SwFrameInvFlags, 0x003f> {};
}
 
class SW_DLLPUBLIC SwFrame : public SwFrameAreaDefinition, public SwClient, public SfxBroadcaster
{
    // the hidden Frame
    friend class SwFlowFrame;
    friend class SwLayoutFrame;
    friend class SwLooping;
    friend class SwDeletionChecker; // for GetDep()
 
    // voids lower during creation of a column
    friend SwFrame *SaveContent( SwLayoutFrame *, SwFrame* pStart );
    friend void   RestoreContent( SwFrame *, SwLayoutFrame *, SwFrame *pSibling );
 
    // for validating a mistakenly invalidated one in SwContentFrame::MakeAll
    friend void ValidateSz( SwFrame *pFrame );
    // implemented in text/txtftn.cxx, prevents Footnote oscillation
    friend void ValidateText( SwFrame *pFrame );
 
    friend void MakeNxt( SwFrame *pFrame, SwFrame *pNxt );
 
    // cache for (border) attributes
    static SwCache *spCache;
 
    SwRootFrame   *mpRoot;
    SwLayoutFrame *mpUpper;
    SwFrame       *mpNext;
    SwFrame       *mpPrev;
 
    // sw_redlinehide: hide these dangerous SwClient functions
    using SwClient::GetRegisteredInNonConst;
    using SwClient::GetRegisteredIn;
 
    SwFrame *FindNext_();
    SwFrame *FindPrev_();
 
    SwContentFrame* FindNextCnt_( const bool _bInSameFootnote );
 
    SwContentFrame* FindPrevCnt_();
 
    void UpdateAttrFrame( const SfxPoolItem*, const SfxPoolItem*, SwFrameInvFlags & );
    SwFrame* GetIndNext_();
    void SetDirFlags( bool bVert );
 
    const SwLayoutFrame* ImplGetNextLayoutLeaf( bool bFwd ) const;
 
    SwPageFrame* ImplFindPageFrame();
 
protected:
    std::unique_ptr<SwSortedObjs> m_pDrawObjs; // draw objects, can be null
    SwFrameType mnFrameType;  //Who am I?
 
    bool mbInDtor      : 1;
    bool mbInvalidR2L  : 1;
    bool mbDerivedR2L  : 1;
    bool mbRightToLeft : 1;
    bool mbInvalidVert : 1;
    bool mbDerivedVert : 1;
    bool mbVertical    : 1;
 
    bool mbVertLR      : 1;
    bool mbVertLRBT    : 1;
 
    bool mbValidLineNum  : 1;
    bool mbFixSize       : 1;
 
    // if true, frame will be painted completely even content was changed
    // only partially. For ContentFrames a border (from Action) will exclusively
    // painted if <mbCompletePaint> is true.
    bool mbCompletePaint : 1;
 
    bool mbRetouche      : 1; // frame is responsible for retouching
 
    bool mbInfInvalid    : 1;  // InfoFlags are invalid
    bool mbInfBody       : 1;  // Frame is in document body
    bool mbInfTab        : 1;  // Frame is in a table
    bool mbInfFly        : 1;  // Frame is in a Fly
    bool mbInfFootnote        : 1;  // Frame is in a footnote
    bool mbInfSct        : 1;  // Frame is in a section
    bool mbColLocked     : 1;  // lock Grow/Shrink for column-wise section
                                  // or fly frames, will be set in Format
    bool m_isInDestroy : 1;
    int mnForbidDelete;
 
    void ColLock()      { mbColLocked = true; }
    void ColUnlock()    { mbColLocked = false; }
 
    virtual void DestroyImpl();
    virtual ~SwFrame() override;
 
    // Only used by SwRootFrame Ctor to get 'this' into mpRoot...
    void setRootFrame( SwRootFrame* pRoot ) { mpRoot = pRoot; }
 
    SwPageFrame *InsertPage( SwPageFrame *pSibling, bool bFootnote );
    void PrepareMake(vcl::RenderContext* pRenderContext);
    void OptPrepareMake();
    virtual void MakePos();
    // Format next frame of table frame to assure keeping attributes.
    // In case of nested tables method <SwFrame::MakeAll()> is called to
    // avoid formatting of superior table frame.
    friend SwFrame* sw_FormatNextContentForKeep( SwTabFrame* pTabFrame );
 
    virtual void MakeAll(vcl::RenderContext* pRenderContext) = 0;
    // adjust frames of a page
    SwTwips AdjustNeighbourhood( SwTwips nDiff, bool bTst = false );
 
    // change only frame size not the size of PrtArea
    virtual SwTwips ShrinkFrame( SwTwips, bool bTst = false, bool bInfo = false ) = 0;
    virtual SwTwips GrowFrame  ( SwTwips, bool bTst = false, bool bInfo = false ) = 0;
 
    sw::BroadcastingModify* GetDep()
            { return static_cast<sw::BroadcastingModify*>(GetRegisteredInNonConst()); }
    const sw::BroadcastingModify* GetDep() const
            { return static_cast<const sw::BroadcastingModify*>(GetRegisteredIn()); }
 
    SwFrame( sw::BroadcastingModify*, SwFrame* );
 
    void CheckDir( SvxFrameDirection nDir, bool bVert, bool bOnlyBiDi, bool bBrowse );
 
    enum InvalidationType
    {
        INVALID_SIZE, INVALID_PRTAREA, INVALID_POS, INVALID_LINENUM, INVALID_ALL
    };
 
    virtual bool InvalidationAllowed( const InvalidationType _nInvalid ) const;
 
    virtual void ActionOnInvalidation( const InvalidationType _nInvalid );
 
    // draw shadow and borders
    void PaintShadow( const SwRect&, SwRect&, const SwBorderAttrs& ) const;
    virtual void SwClientNotify(const SwModify&, const SfxHint&) override;
 
    virtual const IDocumentDrawModelAccess& getIDocumentDrawModelAccess( );
 
public:
    virtual css::uno::Sequence< css::style::TabStop > GetTabStopInfo( SwTwips )
    {
        return css::uno::Sequence< css::style::TabStop >();
    }
 
 
    SwFrameType GetType() const { return mnFrameType; }
 
    static SwCache &GetCache()                { return *spCache; }
    static SwCache *GetCachePtr()             { return spCache;  }
    static void     SetCache( SwCache *pNew ) { spCache = pNew;  }
 
    // change PrtArea size and FrameSize
    SwTwips Shrink( SwTwips, bool bTst = false, bool bInfo = false );
    SwTwips Grow  ( SwTwips, bool bTst = false, bool bInfo = false );
 
    // different methods for inserting in layout tree (for performance reasons)
 
    // insert before pBehind or at the end of the chain below mpUpper
    void InsertBefore( SwLayoutFrame* pParent, SwFrame* pBehind );
    // insert after pBefore or at the beginning of the chain below mpUpper
    void InsertBehind( SwLayoutFrame *pParent, SwFrame *pBefore );
    // insert before pBehind or at the end of the chain while considering
    // the siblings of pSct
    bool InsertGroupBefore( SwFrame* pParent, SwFrame* pWhere, SwFrame* pSct );
    void RemoveFromLayout();
 
    // For internal use only - who ignores this will be put in a sack and has
    // to stay there for two days
    // Does special treatment for Get_[Next|Prev]Leaf() (for tables).
    SwLayoutFrame *GetLeaf( MakePageType eMakePage, bool bFwd );
    SwLayoutFrame *GetNextLeaf   ( MakePageType eMakePage );
    SwLayoutFrame *GetNextFootnoteLeaf( MakePageType eMakePage );
    SwLayoutFrame *GetNextSctLeaf( MakePageType eMakePage );
    SwLayoutFrame *GetNextFlyLeaf( MakePageType eMakePage );
    SwLayoutFrame *GetNextCellLeaf();
    SwLayoutFrame *GetPrevLeaf   ();
    SwLayoutFrame *GetPrevFootnoteLeaf( MakePageType eMakeFootnote );
    SwLayoutFrame *GetPrevSctLeaf();
    SwLayoutFrame *GetPrevFlyLeaf();
    SwLayoutFrame *GetPrevCellLeaf();
    const SwLayoutFrame *GetLeaf ( MakePageType eMakePage, bool bFwd,
                                 const SwFrame *pAnch ) const;
 
    bool WrongPageDesc( SwPageFrame* pNew );
 
    //#i28701# - new methods to append/remove drawing objects
    void AppendDrawObj( SwAnchoredObject& _rNewObj );
    void RemoveDrawObj( SwAnchoredObject& _rToRemoveObj );
 
    // work with chain of FlyFrames
    void  AppendFly( SwFlyFrame *pNew );
    void  RemoveFly( SwFlyFrame *pToRemove );
    const SwSortedObjs *GetDrawObjs() const { return m_pDrawObjs.get(); }
          SwSortedObjs *GetDrawObjs()       { return m_pDrawObjs.get(); }
    void SetDrawObjsAsDeleted( bool bDeleted ); // change tracking of objects anchored to character
    // #i28701# - change purpose of method and adjust its name
    void InvalidateObjs( const bool _bNoInvaOfAsCharAnchoredObjs = true );
 
    virtual void PaintSwFrameShadowAndBorder(
        const SwRect&,
        const SwPageFrame* pPage,
        const SwBorderAttrs&) const;
    void PaintBaBo( const SwRect&, const SwPageFrame *pPage,
                    const bool bOnlyTextBackground = false) const;
    void PaintSwFrameBackground( const SwRect&, const SwPageFrame *pPage,
                          const SwBorderAttrs &,
                          const bool bLowerMode = false,
                          const bool bLowerBorder = false,
                          const bool bOnlyTextBackground = false ) const;
    void PaintBorderLine( const SwRect&, const SwRect&, const SwPageFrame*,
                          const Color *pColor,
                          const SvxBorderLineStyle = SvxBorderLineStyle::SOLID ) const;
 
    std::unique_ptr<drawinglayer::processor2d::BaseProcessor2D> CreateProcessor2D( ) const;
    void ProcessPrimitives( const drawinglayer::primitive2d::Primitive2DContainer& rSequence ) const;
 
    // retouch, not in the area of the given Rect!
    void Retouch( const SwPageFrame *pPage, const SwRect &rRect ) const;
 
    bool GetBackgroundBrush(
        drawinglayer::attribute::SdrAllFillAttributesHelperPtr& rFillAttributes,
        const SvxBrushItem*& rpBrush,
        std::optional<Color>& rxColor,
        SwRect &rOrigRect,
        bool bLowerMode,
        bool bConsiderTextBox ) const;
 
    inline void SetCompletePaint() const;
    inline void ResetCompletePaint() const;
    bool IsCompletePaint() const { return mbCompletePaint; }
 
    inline void SetRetouche() const;
    inline void ResetRetouche() const;
    bool IsRetouche() const { return mbRetouche; }
 
    void SetInfFlags();
    void InvalidateInfFlags() { mbInfInvalid = true; }
    inline bool IsInDocBody() const;    // use InfoFlags, determine flags
    inline bool IsInFootnote() const;        // if necessary
    inline bool IsInTab() const;
    inline bool IsInFly() const;
    inline bool IsInSct() const;
 
    // If frame is inside a split table row, this function returns
    // the corresponding row frame in the follow table.
    const SwRowFrame* IsInSplitTableRow() const;
 
    // If frame is inside a follow flow row, this function returns
    // the corresponding row frame master table
    const SwRowFrame* IsInFollowFlowRow() const;
 
    bool IsInBalancedSection() const;
 
    inline bool IsVertical() const;
    inline bool IsVertLR() const;
    inline bool IsVertLRBT() const;
 
    void SetDerivedVert( bool bNew ){ mbDerivedVert = bNew; }
    void SetInvalidVert( bool bNew) { mbInvalidVert = bNew; }
    inline bool IsRightToLeft() const;
    void SetDerivedR2L( bool bNew ) { mbDerivedR2L  = bNew; }
 
    void CheckDirChange();
    // returns upper left frame position for LTR and
    // upper right frame position for Asian / RTL frames
    Point   GetFrameAnchorPos( bool bIgnoreFlysAnchoredAtThisFrame ) const;
 
    bool IsMoveable( const SwLayoutFrame* _pLayoutFrame = nullptr ) const;
 
    // Is it permitted for the (Text)Frame to add a footnote in the current
    // environment (not e.g. for repeating table headlines)
    bool IsFootnoteAllowed() const;
 
    virtual void  Format( vcl::RenderContext* pRenderContext, const SwBorderAttrs *pAttrs = nullptr );
 
    virtual void CheckDirection( bool bVert );
 
    void ReinitializeFrameSizeAttrFlags();
 
    const SwAttrSet *GetAttrSet() const;
    virtual const SvxFormatBreakItem& GetBreakItem() const;
    virtual const SwFormatPageDesc& GetPageDescItem() const;
 
    bool HasFixSize() const { return mbFixSize; }
 
    // check all pages (starting from the given) and correct them if needed
    static void CheckPageDescs( SwPageFrame *pStart, bool bNotifyFields = true, SwPageFrame** ppPrev = nullptr);
 
    // might return 0, with and without const
    SwFrame               *GetNext()  { return mpNext; }
    SwFrame               *GetPrev()  { return mpPrev; }
    SwLayoutFrame         *GetUpper() { return mpUpper; }
    SwRootFrame           *getRootFrame(){ return mpRoot; }
    SwPageFrame           *FindPageFrame() { return IsPageFrame() ? reinterpret_cast<SwPageFrame*>(this) : ImplFindPageFrame(); }
    SwFrame               *FindColFrame();
    SwRowFrame            *FindRowFrame();
    SwFootnoteBossFrame   *FindFootnoteBossFrame( bool bFootnotes = false );
    SwTabFrame            *ImplFindTabFrame();
    SwFootnoteFrame       *ImplFindFootnoteFrame();
    SwFlyFrame            *ImplFindFlyFrame();
    SwSectionFrame        *ImplFindSctFrame();
    const SwBodyFrame     *ImplFindBodyFrame() const;
    SwFrame               *FindFooterOrHeader();
    SwFrame               *GetLower();
    const SwFrame         *GetNext()  const { return mpNext; }
    const SwFrame         *GetPrev()  const { return mpPrev; }
    const SwLayoutFrame   *GetUpper() const { return mpUpper; }
    const SwRootFrame     *getRootFrame()   const { return mpRoot; }
    inline SwTabFrame     *FindTabFrame();
    inline SwFootnoteFrame     *FindFootnoteFrame();
    inline SwFlyFrame     *FindFlyFrame();
    inline SwSectionFrame *FindSctFrame();
    inline SwFrame        *FindNext();
    // #i27138# - add parameter <_bInSameFootnote>
    SwContentFrame* FindNextCnt( const bool _bInSameFootnote = false );
    inline SwFrame        *FindPrev();
    inline const SwPageFrame *FindPageFrame() const;
    inline const SwFootnoteBossFrame *FindFootnoteBossFrame( bool bFootnote = false ) const;
    inline const SwFrame     *FindColFrame() const;
    inline const SwFrame     *FindFooterOrHeader() const;
    inline const SwTabFrame  *FindTabFrame() const;
    inline const SwFootnoteFrame  *FindFootnoteFrame() const;
    inline const SwFlyFrame  *FindFlyFrame() const;
    inline const SwSectionFrame *FindSctFrame() const;
    inline const SwBodyFrame    *FindBodyFrame() const;
    inline const SwFrame     *FindNext() const;
    // #i27138# - add parameter <_bInSameFootnote>
    const SwContentFrame* FindNextCnt( const bool _bInSameFootnote = false ) const;
    inline const SwFrame     *FindPrev() const;
           const SwFrame     *GetLower()  const;
 
    SwContentFrame* FindPrevCnt();
 
    const SwContentFrame* FindPrevCnt() const;
 
    // #i79774#
    SwFrame* GetIndPrev_() const;
    SwFrame* GetIndPrev() const
        { return ( mpPrev || !IsInSct() ) ? mpPrev : GetIndPrev_(); }
 
    SwFrame* GetIndNext()
        { return ( mpNext || !IsInSct() ) ? mpNext : GetIndNext_(); }
    const SwFrame* GetIndNext() const { return const_cast<SwFrame*>(this)->GetIndNext(); }
 
    sal_uInt16 GetPhyPageNum() const;   // page number without offset
    sal_uInt16 GetVirtPageNum() const;  // page number with offset
    bool OnRightPage() const { return 0 != GetPhyPageNum() % 2; };
    bool WannaRightPage() const;
    bool OnFirstPage() const;
 
    inline const  SwLayoutFrame *GetPrevLayoutLeaf() const;
    inline const  SwLayoutFrame *GetNextLayoutLeaf() const;
    inline SwLayoutFrame *GetPrevLayoutLeaf();
    inline SwLayoutFrame *GetNextLayoutLeaf();
 
    virtual void Calc(vcl::RenderContext* pRenderContext) const; // here might be "formatted"
    inline void OptCalc() const;    // here we assume (for optimization) that
                                    // the predecessors are already formatted
    Point   GetRelPos() const;
 
    // PaintArea is the area where content might be displayed.
    // The margin of a page or the space between columns belongs to it.
    SwRect GetPaintArea() const;
 
    // UnionFrame is the union of Frame- and PrtArea, normally identical
    // to the FrameArea except in case of negative Prt margins.
    SwRect UnionFrame( bool bBorder = false ) const;
 
    virtual Size ChgSize( const Size& aNewSize );
 
    virtual void Cut() = 0;
    virtual void Paste( SwFrame* pParent, SwFrame* pSibling = nullptr ) = 0;
 
    void ValidateLineNum() { mbValidLineNum = true; }
 
    bool GetValidLineNumFlag()const { return mbValidLineNum; }
 
    // Only invalidate Frame
    // #i28701# - add call to method <ActionOnInvalidation(..)>
    //            for all invalidation methods.
    // #i28701# - use method <InvalidationAllowed(..)> to
    //            decide, if invalidation will to be performed or not.
    // #i26945# - no additional invalidation, if it's already
    //            invalidate.
    void InvalidateSize_()
    {
        if ( isFrameAreaSizeValid() && InvalidationAllowed( INVALID_SIZE ) )
        {
            setFrameAreaSizeValid(false);
            ActionOnInvalidation( INVALID_SIZE );
        }
    }
    void InvalidatePrt_()
    {
        if ( isFramePrintAreaValid() && InvalidationAllowed( INVALID_PRTAREA ) )
        {
            setFramePrintAreaValid(false);
            ActionOnInvalidation( INVALID_PRTAREA );
        }
    }
    void InvalidatePos_()
    {
        if ( isFrameAreaPositionValid() && InvalidationAllowed( INVALID_POS ) )
        {
            setFrameAreaPositionValid(false);
            ActionOnInvalidation( INVALID_POS );
        }
    }
    void InvalidateLineNum_()
    {
        if ( mbValidLineNum && InvalidationAllowed( INVALID_LINENUM ) )
        {
            mbValidLineNum = false;
            ActionOnInvalidation( INVALID_LINENUM );
        }
    }
    void InvalidateAll_()
    {
        if ( ( isFrameAreaSizeValid() || isFramePrintAreaValid() || isFrameAreaPositionValid() ) && InvalidationAllowed( INVALID_ALL ) )
        {
            setFrameAreaSizeValid(false);
            setFrameAreaPositionValid(false);
            setFramePrintAreaValid(false);
            ActionOnInvalidation( INVALID_ALL );
        }
    }
    // also notify page at the same time
    inline void InvalidateSize();
    inline void InvalidatePrt();
    inline void InvalidatePos();
    inline void InvalidateLineNum();
    inline void InvalidateAll();
    void ImplInvalidateSize();
    void ImplInvalidatePrt();
    void ImplInvalidatePos();
    void ImplInvalidateLineNum();
 
    inline void InvalidateNextPos( bool bNoFootnote = false );
    void ImplInvalidateNextPos( bool bNoFootnote );
 
    void InvalidateNextPrtArea();
 
    void InvalidatePage( const SwPageFrame *pPage = nullptr ) const;
 
    virtual bool    FillSelection( SwSelectionList& rList, const SwRect& rRect ) const;
 
    virtual bool    GetModelPositionForViewPoint( SwPosition *, Point&,
                                 SwCursorMoveState* = nullptr, bool bTestBackground = false ) const;
    virtual bool    GetCharRect( SwRect &, const SwPosition&,
                                 SwCursorMoveState* = nullptr, bool bAllowFarAway = true ) const;
    virtual void PaintSwFrame( vcl::RenderContext& rRenderContext, SwRect const&,
                        SwPrintData const*const pPrintData = nullptr ) const;
 
    // HACK: shortcut between frame and formatting
    // It's your own fault if you cast void* incorrectly! In any case check
    // the void* for 0.
    virtual bool Prepare( const PrepareHint ePrep = PrepareHint::Clear,
                          const void *pVoid = nullptr, bool bNotify = true );
 
    // true if it is the correct class, false otherwise
    inline bool IsLayoutFrame() const;
    inline bool IsRootFrame() const;
    inline bool IsPageFrame() const;
    inline bool IsColumnFrame() const;
    inline bool IsFootnoteBossFrame() const;  // footnote bosses might be PageFrames or ColumnFrames
    inline bool IsHeaderFrame() const;
    inline bool IsFooterFrame() const;
    inline bool IsFootnoteContFrame() const;
    inline bool IsFootnoteFrame() const;
    inline bool IsBodyFrame() const;
    inline bool IsColBodyFrame() const;  // implemented in layfrm.hxx, BodyFrame above ColumnFrame
    inline bool IsPageBodyFrame() const; // implemented in layfrm.hxx, BodyFrame above PageFrame
    inline bool IsFlyFrame() const;
    inline bool IsSctFrame() const;
    inline bool IsTabFrame() const;
    inline bool IsRowFrame() const;
    inline bool IsCellFrame() const;
    inline bool IsContentFrame() const;
    inline bool IsTextFrame() const;
    SwTextFrame* DynCastTextFrame();
    const SwTextFrame* DynCastTextFrame() const;
    inline bool IsNoTextFrame() const;
    // Frames where its PrtArea depends on their neighbors and that are
    // positioned in the content flow
    inline bool IsFlowFrame() const;
    // Frames that are capable of retouching or that might need to retouch behind
    // themselves
    inline bool IsRetoucheFrame() const;
    inline bool IsAccessibleFrame() const;
 
    void PrepareCursor();                 // CursorShell is allowed to call this
 
    // Is the Frame (or the section containing it) protected? Same for Fly in
    // Fly in ... and footnotes
    bool IsProtected() const;
 
    bool IsColLocked()  const { return mbColLocked; }
    virtual bool IsDeleteForbidden() const { return mnForbidDelete > 0; }
 
    static void DestroyFrame(SwFrame *const pFrame);
 
    bool IsInDtor() const { return mbInDtor; }
 
    // No inline cause we need the function pointers
    tools::Long GetTopMargin() const;
    tools::Long GetBottomMargin() const;
    tools::Long GetLeftMargin() const;
    tools::Long GetRightMargin() const;
    void SetTopBottomMargins( tools::Long, tools::Long );
    void SetLeftRightMargins( tools::Long, tools::Long );
    void SetRightLeftMargins( tools::Long, tools::Long );
    tools::Long GetPrtLeft() const;
    tools::Long GetPrtBottom() const;
    tools::Long GetPrtRight() const;
    tools::Long GetPrtTop() const;
    bool SetMinLeft( tools::Long );
    bool SetMaxBottom( tools::Long );
    bool SetMaxRight( tools::Long );
    void MakeBelowPos( const SwFrame*, const SwFrame*, bool );
    void MakeLeftPos( const SwFrame*, const SwFrame*, bool );
    void MakeRightPos( const SwFrame*, const SwFrame*, bool );
    bool IsNeighbourFrame() const
        { return bool(GetType() & FRM_NEIGHBOUR); }
 
    // NEW TABLES
    // Some functions for covered/covering table cells. This way unnecessary
    // includes can be avoided
    virtual bool IsLeaveUpperAllowed() const;
    virtual bool IsCoveredCell() const;
    bool IsInCoveredCell() const;
 
    // #i81146# new loop control
    bool KnowsFormat( const SwFormat& rFormat ) const;
    void RegisterToFormat( SwFormat& rFormat );
    void ValidateThisAndAllLowers( const sal_uInt16 nStage );
 
    void ForbidDelete() { ++mnForbidDelete; }
    void AllowDelete() { assert(mnForbidDelete > 0); --mnForbidDelete; }
 
    drawinglayer::attribute::SdrAllFillAttributesHelperPtr getSdrAllFillAttributesHelper() const;
    bool supportsFullDrawingLayerFillAttributeSet() const;
 
public:
    // if writer is NULL, dumps the layout structure as XML in layout.xml
    virtual void dumpAsXml(xmlTextWriterPtr writer = nullptr) const = 0;
    void dumpTopMostAsXml(xmlTextWriterPtr writer = nullptr) const;
    void dumpInfosAsXml(xmlTextWriterPtr writer) const;
    virtual void dumpAsXmlAttributes(xmlTextWriterPtr writer) const;
    void dumpChildrenAsXml(xmlTextWriterPtr writer) const;
    bool IsCollapse() const;
};
 
inline bool SwFrame::IsInDocBody() const
{
    if ( mbInfInvalid )
        const_cast<SwFrame*>(this)->SetInfFlags();
    return mbInfBody;
}
inline bool SwFrame::IsInFootnote() const
{
    if ( mbInfInvalid )
        const_cast<SwFrame*>(this)->SetInfFlags();
    return mbInfFootnote;
}
inline bool SwFrame::IsInTab() const
{
    if ( mbInfInvalid )
        const_cast<SwFrame*>(this)->SetInfFlags();
    return mbInfTab;
}
inline bool SwFrame::IsInFly() const
{
    if ( mbInfInvalid )
        const_cast<SwFrame*>(this)->SetInfFlags();
    return mbInfFly;
}
inline bool SwFrame::IsInSct() const
{
    if ( mbInfInvalid )
        const_cast<SwFrame*>(this)->SetInfFlags();
    return mbInfSct;
}
bool SwFrame::IsVertical() const
{
    if( mbInvalidVert )
        const_cast<SwFrame*>(this)->SetDirFlags( true );
    return mbVertical;
}
inline bool SwFrame::IsVertLR() const
{
    return mbVertLR;
}
inline bool SwFrame::IsVertLRBT() const
{
    return mbVertLRBT;
}
inline bool SwFrame::IsRightToLeft() const
{
    if( mbInvalidR2L )
        const_cast<SwFrame*>(this)->SetDirFlags( false );
    return mbRightToLeft;
}
 
inline void SwFrame::SetCompletePaint() const
{
    const_cast<SwFrame*>(this)->mbCompletePaint = true;
}
inline void SwFrame::ResetCompletePaint() const
{
    const_cast<SwFrame*>(this)->mbCompletePaint = false;
}
 
inline void SwFrame::SetRetouche() const
{
    const_cast<SwFrame*>(this)->mbRetouche = true;
}
inline void SwFrame::ResetRetouche() const
{
    const_cast<SwFrame*>(this)->mbRetouche = false;
}
 
inline SwLayoutFrame *SwFrame::GetNextLayoutLeaf()
{
    return const_cast<SwLayoutFrame*>(static_cast<const SwFrame*>(this)->GetNextLayoutLeaf());
}
inline SwLayoutFrame *SwFrame::GetPrevLayoutLeaf()
{
    return const_cast<SwLayoutFrame*>(static_cast<const SwFrame*>(this)->GetPrevLayoutLeaf());
}
inline const SwLayoutFrame *SwFrame::GetNextLayoutLeaf() const
{
    return ImplGetNextLayoutLeaf( true );
}
inline const SwLayoutFrame *SwFrame::GetPrevLayoutLeaf() const
{
    return ImplGetNextLayoutLeaf( false );
}
 
inline void SwFrame::InvalidateSize()
{
    if ( isFrameAreaSizeValid() )
    {
        ImplInvalidateSize();
    }
}
inline void SwFrame::InvalidatePrt()
{
    if ( isFramePrintAreaValid() )
    {
        ImplInvalidatePrt();
    }
}
inline void SwFrame::InvalidatePos()
{
    if ( isFrameAreaPositionValid() )
    {
        ImplInvalidatePos();
    }
}
inline void SwFrame::InvalidateLineNum()
{
    if ( mbValidLineNum )
        ImplInvalidateLineNum();
}
inline void SwFrame::InvalidateAll()
{
    if ( InvalidationAllowed( INVALID_ALL ) )
    {
        if ( isFrameAreaDefinitionValid()  )
        {
            ImplInvalidatePos();
        }
 
        setFrameAreaSizeValid(false);
        setFrameAreaPositionValid(false);
        setFramePrintAreaValid(false);
 
        // #i28701#
        ActionOnInvalidation( INVALID_ALL );
    }
}
inline void SwFrame::InvalidateNextPos( bool bNoFootnote )
{
    if ( mpNext && !mpNext->IsSctFrame() )
        mpNext->InvalidatePos();
    else
        ImplInvalidateNextPos( bNoFootnote );
}
 
inline void SwFrame::OptCalc() const
{
    if ( !isFrameAreaPositionValid() || !isFramePrintAreaValid() || !isFrameAreaSizeValid() )
    {
        const_cast<SwFrame*>(this)->OptPrepareMake();
    }
}
inline const SwPageFrame *SwFrame::FindPageFrame() const
{
    return const_cast<SwFrame*>(this)->FindPageFrame();
}
inline const SwFrame *SwFrame::FindColFrame() const
{
    return const_cast<SwFrame*>(this)->FindColFrame();
}
inline const SwFrame *SwFrame::FindFooterOrHeader() const
{
    return const_cast<SwFrame*>(this)->FindFooterOrHeader();
}
inline SwTabFrame *SwFrame::FindTabFrame()
{
    return IsInTab() ? ImplFindTabFrame() : nullptr;
}
inline const SwFootnoteBossFrame *SwFrame::FindFootnoteBossFrame( bool bFootnote ) const
{
    return const_cast<SwFrame*>(this)->FindFootnoteBossFrame( bFootnote );
}
inline SwFootnoteFrame *SwFrame::FindFootnoteFrame()
{
    return IsInFootnote() ? ImplFindFootnoteFrame() : nullptr;
}
inline SwFlyFrame *SwFrame::FindFlyFrame()
{
    return IsInFly() ? ImplFindFlyFrame() : nullptr;
}
inline SwSectionFrame *SwFrame::FindSctFrame()
{
    return IsInSct() ? ImplFindSctFrame() : nullptr;
}
 
inline const SwBodyFrame *SwFrame::FindBodyFrame() const
{
    return IsInDocBody() ? ImplFindBodyFrame() : nullptr;
}
 
inline const SwTabFrame *SwFrame::FindTabFrame() const
{
    return IsInTab() ? const_cast<SwFrame*>(this)->ImplFindTabFrame() : nullptr;
}
inline const SwFootnoteFrame *SwFrame::FindFootnoteFrame() const
{
    return IsInFootnote() ? const_cast<SwFrame*>(this)->ImplFindFootnoteFrame() : nullptr;
}
inline const SwFlyFrame *SwFrame::FindFlyFrame() const
{
    return IsInFly() ? const_cast<SwFrame*>(this)->ImplFindFlyFrame() : nullptr;
}
inline const SwSectionFrame *SwFrame::FindSctFrame() const
{
    return IsInSct() ? const_cast<SwFrame*>(this)->ImplFindSctFrame() : nullptr;
}
inline SwFrame *SwFrame::FindNext()
{
    if ( mpNext )
        return mpNext;
    else
        return FindNext_();
}
inline const SwFrame *SwFrame::FindNext() const
{
    if ( mpNext )
        return mpNext;
    else
        return const_cast<SwFrame*>(this)->FindNext_();
}
inline SwFrame *SwFrame::FindPrev()
{
    if ( mpPrev && !mpPrev->IsSctFrame() )
        return mpPrev;
    else
        return FindPrev_();
}
inline const SwFrame *SwFrame::FindPrev() const
{
    if ( mpPrev && !mpPrev->IsSctFrame() )
        return mpPrev;
    else
        return const_cast<SwFrame*>(this)->FindPrev_();
}
 
inline bool SwFrame::IsLayoutFrame() const
{
    return bool(GetType() & FRM_LAYOUT);
}
inline bool SwFrame::IsRootFrame() const
{
    return mnFrameType == SwFrameType::Root;
}
inline bool SwFrame::IsPageFrame() const
{
    return mnFrameType == SwFrameType::Page;
}
inline bool SwFrame::IsColumnFrame() const
{
    return mnFrameType == SwFrameType::Column;
}
inline bool SwFrame::IsFootnoteBossFrame() const
{
    return bool(GetType() & FRM_FTNBOSS);
}
inline bool SwFrame::IsHeaderFrame() const
{
    return mnFrameType == SwFrameType::Header;
}
inline bool SwFrame::IsFooterFrame() const
{
    return mnFrameType == SwFrameType::Footer;
}
inline bool SwFrame::IsFootnoteContFrame() const
{
    return mnFrameType == SwFrameType::FtnCont;
}
inline bool SwFrame::IsFootnoteFrame() const
{
    return mnFrameType == SwFrameType::Ftn;
}
inline bool SwFrame::IsBodyFrame() const
{
    return mnFrameType == SwFrameType::Body;
}
inline bool SwFrame::IsFlyFrame() const
{
    return mnFrameType == SwFrameType::Fly;
}
inline bool SwFrame::IsSctFrame() const
{
    return mnFrameType == SwFrameType::Section;
}
inline bool SwFrame::IsTabFrame() const
{
    return mnFrameType == SwFrameType::Tab;
}
inline bool SwFrame::IsRowFrame() const
{
    return mnFrameType == SwFrameType::Row;
}
inline bool SwFrame::IsCellFrame() const
{
    return mnFrameType == SwFrameType::Cell;
}
inline bool SwFrame::IsContentFrame() const
{
    return bool(GetType() & FRM_CNTNT);
}
inline bool SwFrame::IsTextFrame() const
{
    return mnFrameType == SwFrameType::Txt;
}
inline bool SwFrame::IsNoTextFrame() const
{
    return mnFrameType == SwFrameType::NoTxt;
}
inline bool SwFrame::IsFlowFrame() const
{
    return bool(GetType() & (FRM_CNTNT|SwFrameType::Tab|SwFrameType::Section));
}
inline bool SwFrame::IsRetoucheFrame() const
{
    return bool(GetType() & (FRM_CNTNT|SwFrameType::Tab|SwFrameType::Section|SwFrameType::Ftn));
}
inline bool SwFrame::IsAccessibleFrame() const
{
    return bool(GetType() & FRM_ACCESSIBLE);
}
 
//use this to protect a SwFrame for a given scope from getting deleted
class SwFrameDeleteGuard
{
private:
    SwFrame *m_pForbidFrame;
public:
    //Flag pFrame for SwFrameDeleteGuard lifetime that we shouldn't delete
    //it in e.g. SwSectionFrame::MergeNext etc because we will need it
    //again after the SwFrameDeleteGuard dtor
    explicit SwFrameDeleteGuard(SwFrame* pFrame)
        : m_pForbidFrame(pFrame)
    {
        if (m_pForbidFrame)
            m_pForbidFrame->ForbidDelete();
    }
 
    SwFrameDeleteGuard(const SwFrameDeleteGuard&) =delete;
 
    ~SwFrameDeleteGuard()
    {
        if (m_pForbidFrame)
            m_pForbidFrame->AllowDelete();
    }
 
    SwFrameDeleteGuard& operator=(const SwFrameDeleteGuard&) =delete;
};
 
typedef tools::Long (SwFrame::*SwFrameGet)() const;
typedef bool (SwFrame::*SwFrameMax)( tools::Long );
typedef void (SwFrame::*SwFrameMakePos)( const SwFrame*, const SwFrame*, bool );
typedef tools::Long (*SwOperator)( tools::Long, tools::Long );
typedef void (SwFrame::*SwFrameSet)( tools::Long, tools::Long );
 
struct SwRectFnCollection
{
    SwRectGet     fnGetTop;
    SwRectGet     fnGetBottom;
    SwRectGet     fnGetLeft;
    SwRectGet     fnGetRight;
    SwRectGet     fnGetWidth;
    SwRectGet     fnGetHeight;
    SwRectPoint   fnGetPos;
    SwRectSize    fnGetSize;
 
    SwRectSet     fnSetTop;
    SwRectSet     fnSetBottom;
    SwRectSet     fnSetLeft;
    SwRectSet     fnSetRight;
    SwRectSet     fnSetWidth;
    SwRectSet     fnSetHeight;
 
    SwRectSet     fnSubTop;
    SwRectSet     fnAddBottom;
    SwRectSet     fnSubLeft;
    SwRectSet     fnAddRight;
    SwRectSet     fnAddWidth;
    SwRectSet     fnAddHeight;
 
    SwRectSet     fnSetPosX;
    SwRectSet     fnSetPosY;
 
    SwFrameGet      fnGetTopMargin;
    SwFrameGet      fnGetBottomMargin;
    SwFrameGet      fnGetLeftMargin;
    SwFrameGet      fnGetRightMargin;
    SwFrameSet      fnSetXMargins;
    SwFrameSet      fnSetYMargins;
    SwFrameGet      fnGetPrtTop;
    SwFrameGet      fnGetPrtBottom;
    SwFrameGet      fnGetPrtLeft;
    SwFrameGet      fnGetPrtRight;
    SwRectDist      fnTopDist;
    SwRectDist      fnBottomDist;
    SwRectDist      fnLeftDist;
    SwRectDist      fnRightDist;
    SwFrameMax      fnSetLimit;
    SwRectMax       fnOverStep;
 
    SwRectSetPos    fnSetPos;
    SwFrameMakePos  fnMakePos;
    SwOperator      fnXDiff;
    SwOperator      fnYDiff;
    SwOperator      fnXInc;
    SwOperator      fnYInc;
 
    SwRectSetTwice  fnSetLeftAndWidth;
    SwRectSetTwice  fnSetTopAndHeight;
};
 
typedef SwRectFnCollection* SwRectFn;
 
// This class allows to use proper methods regardless of orientation (LTR/RTL, horizontal or vertical)
extern SwRectFn fnRectHori, fnRectVert, fnRectVertL2R, fnRectVertL2RB2T;
class SwRectFnSet {
public:
    explicit SwRectFnSet(const SwFrame *pFrame)
        : m_bVert(pFrame->IsVertical())
        , m_bVertL2R(pFrame->IsVertLR())
        , m_bVertL2RB2T(pFrame->IsVertLRBT())
    {
        m_fnRect = m_bVert ? (m_bVertL2R ? (m_bVertL2RB2T ? fnRectVertL2RB2T : fnRectVertL2R) : fnRectVert) : fnRectHori;
    }
 
    void Refresh(const SwFrame *pFrame)
    {
        m_bVert = pFrame->IsVertical();
        m_bVertL2R = pFrame->IsVertLR();
        m_bVertL2RB2T = pFrame->IsVertLRBT();
        m_fnRect = m_bVert ? (m_bVertL2R ? (m_bVertL2RB2T ? fnRectVertL2RB2T : fnRectVertL2R) : fnRectVert) : fnRectHori;
    }
 
    bool IsVert() const    { return m_bVert; }
    bool IsVertL2R() const { return m_bVertL2R; }
    SwRectFn FnRect() const { return m_fnRect; }
 
    bool PosDiff(const SwRect &rRect1, const SwRect &rRect2) const
    {
        return ((rRect1.*m_fnRect->fnGetTop)() != (rRect2.*m_fnRect->fnGetTop)()
            || (rRect1.*m_fnRect->fnGetLeft)() != (rRect2.*m_fnRect->fnGetLeft)());
    }
 
    tools::Long  GetTop   (const SwRect& rRect) const { return (rRect.*m_fnRect->fnGetTop)   (); }
    tools::Long  GetBottom(const SwRect& rRect) const { return (rRect.*m_fnRect->fnGetBottom)(); }
    tools::Long  GetLeft  (const SwRect& rRect) const { return (rRect.*m_fnRect->fnGetLeft)  (); }
    tools::Long  GetRight (const SwRect& rRect) const { return (rRect.*m_fnRect->fnGetRight) (); }
    tools::Long  GetWidth (const SwRect& rRect) const { return (rRect.*m_fnRect->fnGetWidth) (); }
    tools::Long  GetHeight(const SwRect& rRect) const { return (rRect.*m_fnRect->fnGetHeight)(); }
    Point GetPos   (const SwRect& rRect) const { return (rRect.*m_fnRect->fnGetPos)   (); }
    Size  GetSize  (const SwRect& rRect) const { return (rRect.*m_fnRect->fnGetSize)  (); }
 
    void SetTop   (SwRect& rRect, tools::Long nNew) const { (rRect.*m_fnRect->fnSetTop)   (nNew); }
    void SetBottom(SwRect& rRect, tools::Long nNew) const { (rRect.*m_fnRect->fnSetBottom)(nNew); }
    void SetLeft  (SwRect& rRect, tools::Long nNew) const { (rRect.*m_fnRect->fnSetLeft)  (nNew); }
    void SetRight (SwRect& rRect, tools::Long nNew) const { (rRect.*m_fnRect->fnSetRight) (nNew); }
    void SetWidth (SwRect& rRect, tools::Long nNew) const { (rRect.*m_fnRect->fnSetWidth) (nNew); }
    void SetHeight(SwRect& rRect, tools::Long nNew) const { (rRect.*m_fnRect->fnSetHeight)(nNew); }
 
    void SubTop   (SwRect& rRect, tools::Long nNew) const { (rRect.*m_fnRect->fnSubTop)   (nNew); }
    void AddBottom(SwRect& rRect, tools::Long nNew) const { (rRect.*m_fnRect->fnAddBottom)(nNew); }
    void SubLeft  (SwRect& rRect, tools::Long nNew) const { (rRect.*m_fnRect->fnSubLeft)  (nNew); }
    void AddRight (SwRect& rRect, tools::Long nNew) const { (rRect.*m_fnRect->fnAddRight) (nNew); }
    void AddWidth (SwRect& rRect, tools::Long nNew) const { (rRect.*m_fnRect->fnAddWidth) (nNew); }
    void AddHeight(SwRect& rRect, tools::Long nNew) const { (rRect.*m_fnRect->fnAddHeight)(nNew); }
 
    void SetPosX(SwRect& rRect, tools::Long nNew) const { (rRect.*m_fnRect->fnSetPosX)(nNew); }
    void SetPosY(SwRect& rRect, tools::Long nNew) const { (rRect.*m_fnRect->fnSetPosY)(nNew); }
 
    tools::Long  GetTopMargin   (const SwFrame& rFrame) const { return (rFrame.*m_fnRect->fnGetTopMargin)   (); }
    tools::Long  GetBottomMargin(const SwFrame& rFrame) const { return (rFrame.*m_fnRect->fnGetBottomMargin)(); }
    tools::Long  GetLeftMargin  (const SwFrame& rFrame) const { return (rFrame.*m_fnRect->fnGetLeftMargin)  (); }
    tools::Long  GetRightMargin (const SwFrame& rFrame) const { return (rFrame.*m_fnRect->fnGetRightMargin) (); }
    void  SetXMargins(SwFrame& rFrame, tools::Long nLeft, tools::Long nRight) const { (rFrame.*m_fnRect->fnSetXMargins)(nLeft, nRight); }
    void  SetYMargins(SwFrame& rFrame, tools::Long nTop, tools::Long nBottom) const { (rFrame.*m_fnRect->fnSetYMargins)(nTop, nBottom); }
    tools::Long  GetPrtTop      (const SwFrame& rFrame) const { return (rFrame.*m_fnRect->fnGetPrtTop)      (); }
    tools::Long  GetPrtBottom   (const SwFrame& rFrame) const { return (rFrame.*m_fnRect->fnGetPrtBottom)   (); }
    tools::Long  GetPrtLeft     (const SwFrame& rFrame) const { return (rFrame.*m_fnRect->fnGetPrtLeft)     (); }
    tools::Long  GetPrtRight    (const SwFrame& rFrame) const { return (rFrame.*m_fnRect->fnGetPrtRight)    (); }
    tools::Long  TopDist   (const SwRect& rRect, tools::Long nPos) const { return (rRect.*m_fnRect->fnTopDist)    (nPos); }
    tools::Long  BottomDist(const SwRect& rRect, tools::Long nPos) const { return (rRect.*m_fnRect->fnBottomDist) (nPos); }
    tools::Long  LeftDist   (const SwRect& rRect, tools::Long nPos) const { return (rRect.*m_fnRect->fnLeftDist)    (nPos); }
    tools::Long  RightDist   (const SwRect& rRect, tools::Long nPos) const { return (rRect.*m_fnRect->fnRightDist)    (nPos); }
    void  SetLimit (SwFrame& rFrame, tools::Long nNew) const { (rFrame.*m_fnRect->fnSetLimit) (nNew); }
    bool  OverStep  (const SwRect& rRect, tools::Long nPos) const { return (rRect.*m_fnRect->fnOverStep)   (nPos); }
 
    void SetPos(SwRect& rRect, const Point& rNew) const { (rRect.*m_fnRect->fnSetPos)(rNew); }
    void MakePos(SwFrame& rFrame, const SwFrame* pUp, const SwFrame* pPrv, bool bNotify) const { (rFrame.*m_fnRect->fnMakePos)(pUp, pPrv, bNotify); }
    tools::Long XDiff(tools::Long n1, tools::Long n2) const { return (m_fnRect->fnXDiff) (n1, n2); }
    tools::Long YDiff(tools::Long n1, tools::Long n2) const { return (m_fnRect->fnYDiff) (n1, n2); }
    tools::Long XInc (tools::Long n1, tools::Long n2) const { return (m_fnRect->fnXInc)  (n1, n2); }
    tools::Long YInc (tools::Long n1, tools::Long n2) const { return (m_fnRect->fnYInc)  (n1, n2); }
 
    void SetLeftAndWidth(SwRect& rRect, tools::Long nLeft, tools::Long nWidth) const { (rRect.*m_fnRect->fnSetLeftAndWidth)(nLeft, nWidth); }
    void SetTopAndHeight(SwRect& rRect, tools::Long nTop, tools::Long nHeight) const { (rRect.*m_fnRect->fnSetTopAndHeight)(nTop, nHeight); }
 
private:
    bool m_bVert;
    bool m_bVertL2R;
    bool m_bVertL2RB2T;
    SwRectFn m_fnRect;
};
 
#endif
 
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */