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 * 
 * Licensed to the Apache Software Foundation (ASF) under one
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 * 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
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 * Unless required by applicable law or agreed to in writing,
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#ifndef SC_DDELINK_HXX
#define SC_DDELINK_HXX

#include "address.hxx"
#include <sfx2/lnkbase.hxx>
#include <svl/broadcast.hxx>
#include "scmatrix.hxx"

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

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

	ScDocument*		pDoc;

	String			aAppl;			// Verbindungsdaten
	String			aTopic;
	String			aItem;
	sal_uInt8			nMode;			// Zahlformat-Modus

	sal_Bool			bNeedUpdate;	// wird gesetzt, wenn Update nicht moeglich war

	ScMatrixRef		pResult;		// Ergebnis

public:
	TYPEINFO();

			ScDdeLink( ScDocument* pD,
						const String& rA, const String& rT, const String& rI,
						sal_uInt8 nM );
			ScDdeLink( ScDocument* pD, SvStream& rStream, ScMultipleReadHeader& rHdr );
			ScDdeLink( ScDocument* pD, const ScDdeLink& rOther );
	virtual ~ScDdeLink();

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

											// von SvBaseLink ueberladen:
	virtual void	DataChanged( const String& rMimeType,
								const ::com::sun::star::uno::Any & rValue );

											// von SvtBroadcaster ueberladen:
	virtual void	ListenersGone();

											// fuer Interpreter:

    const ScMatrix* GetResult() const           { return pResult; }
    void            SetResult( ScMatrix* pRes ) { pResult = pRes; }

                                            // XML and Excel import after NewData()
    ScMatrixRef     GetModifiableResult()   { return pResult; }

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

	void			ResetValue();			// Wert zuruecksetzen
	void			TryUpdate();

	sal_Bool			NeedsUpdate() const { return bNeedUpdate; }

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


#endif