ddelink.hxx

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#ifndef INCLUDED_SC_SOURCE_CORE_INC_DDELINK_HXX
#define INCLUDED_SC_SOURCE_CORE_INC_DDELINK_HXX

#include <sfx2/lnkbase.hxx>
#include <svl/broadcast.hxx>
#include <types.hxx>

namespace com::sun::star::uno { class Any; }

class ScDocument;
class ScMultipleReadHeader;
class ScMultipleWriteHeader;
class SvStream;

class ScDdeLink : public ::sfx2::SvBaseLink, public SvtBroadcaster
{
private:
static bool bIsInUpdate;

    ScDocument&     rDoc;

    OUString        aAppl;          // connection/ link data
    OUString        aTopic;
    OUString        aItem;
    sal_uInt8       nMode;          // number format mode

    bool            bNeedUpdate;    // is set, if update was not possible

    ScMatrixRef     pResult;

public:

            ScDdeLink( ScDocument& rD,
                        const OUString& rA, const OUString& rT, const OUString& rI,
                        sal_uInt8 nM );
            ScDdeLink( ScDocument& rD, SvStream& rStream, ScMultipleReadHeader& rHdr );
            ScDdeLink( ScDocument& rD, const ScDdeLink& rOther );
    virtual ~ScDdeLink() override;

    void            Store( SvStream& rStream, ScMultipleWriteHeader& rHdr ) const;

                    // SvBaseLink override:
    virtual ::sfx2::SvBaseLink::UpdateResult DataChanged(
        const OUString& rMimeType, const css::uno::Any & rValue ) override;

                    // SvtBroadcaster override:
    virtual void    ListenersGone() override;

                    // for interpreter:

    const ScMatrix* GetResult() const;
    void            SetResult( const ScMatrixRef& pRes );

    const OUString&   GetAppl() const     { return aAppl; }
    const OUString&   GetTopic() const    { return aTopic; }
    const OUString&   GetItem() const     { return aItem; }
    sal_uInt8       GetMode() const     { return nMode; }

    void            TryUpdate();

    bool            NeedsUpdate() const { return bNeedUpdate; }

    static bool     IsInUpdate()        { return bIsInUpdate; }
};

#endif

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