anchoreddrawobject.hxx

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#ifndef INCLUDED_SW_INC_ANCHOREDDRAWOBJECT_HXX
#define INCLUDED_SW_INC_ANCHOREDDRAWOBJECT_HXX

#include "anchoredobject.hxx"
#include <boost/optional.hpp>

namespace tools { class Rectangle; }

class SW_DLLPUBLIC SwAnchoredDrawObject : public SwAnchoredObject
{
    private:
        // boolean, indicating that the object position has been invalidated
        // and that a positioning has to be performed.
        bool mbValidPos;

        // rectangle, keeping the last object rectangle after the positioning
        boost::optional<tools::Rectangle> maLastObjRect;

        // boolean, indicating that anchored drawing object hasn't been attached
        // to an anchor frame yet. Once, it is attached to an anchor frame the
        // boolean changes its state.
        bool mbNotYetAttachedToAnchorFrame;

        // boolean, indicating that anchored
        // drawing object hasn't been positioned yet. Once, it's positioned the
        // boolean changes its state.
        bool mbNotYetPositioned;

        // boolean, indicating that after change of layout direction the
        // anchored drawing object has to be captured on the page, if it exceeds
        // the left or right page margin.
        // Needed for compatibility option <DoNotCaptureDrawObjsOnPage>
        bool mbCaptureAfterLayoutDirChange;

        void MakeObjPosAnchoredAtPara();

        void MakeObjPosAnchoredAtLayout();

        void SetPositioningAttr();

        void SetDrawObjAnchor();

        void InvalidatePage_( SwPageFrame* _pPageFrame );

    protected:
        virtual void ObjectAttachedToAnchorFrame() override;

        virtual void RegisterAtCorrectPage() override;

        virtual bool SetObjTop_( const SwTwips _nTop) override;
        virtual bool SetObjLeft_( const SwTwips _nLeft) override;

        virtual SwRect GetObjBoundRect() const override;

    public:

        SwAnchoredDrawObject();
        virtual ~SwAnchoredDrawObject() override;

        // declaration of pure virtual methods of base class <SwAnchoredObject>
        virtual void MakeObjPos() override;
        virtual void InvalidateObjPos() override;
        bool IsValidPos() const
        {
            return mbValidPos;
        }

        // accessors to the format
        virtual SwFrameFormat& GetFrameFormat() override;
        virtual const SwFrameFormat& GetFrameFormat() const override;

        // accessors to the object area and its position
        virtual SwRect GetObjRect() const override;

        boost::optional<tools::Rectangle> const & GetLastObjRect() const { return maLastObjRect;}
        void SetLastObjRect( const tools::Rectangle& _rNewObjRect );

        void AdjustPositioningAttr( const SwFrame* _pNewAnchorFrame,
                                    const SwRect* _pNewObjRect = nullptr );

        virtual void NotifyBackground( SwPageFrame* _pPageFrame,
                                       const SwRect& _rRect,
                                       PrepareHint _eHint ) override;

        bool NotYetPositioned() const
        {
            return mbNotYetPositioned;
        }

        // change of layout direction needs to be tracked
        // for setting <mbCaptureAfterLayoutDirChange>.
        virtual void UpdateLayoutDir() override;
        bool IsOutsidePage() const;

        // new Loop control
        void ValidateThis() { mbValidPos = true; }

        virtual const char* getElementName( ) const override { return "SwAnchoredDrawObject"; }
};

#endif

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