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#ifndef _SVT_LISTENERITER_HXX
#define _SVT_LISTENERITER_HXX

#include "svl/svldllapi.h"
#include <tools/rtti.hxx>

class SvtListener;
class SvtListenerBase;
class SvtBroadcaster;

//-------------------------------------------------------------------------

class SVL_DLLPUBLIC SvtListenerIter
{
    friend class SvtListenerBase;

    SvtBroadcaster& rRoot;
    SvtListenerBase *pAkt, *pDelNext;

    // for the update of all iterator's, if a listener is added or removed
    // at the same time.
    static SvtListenerIter *pListenerIters;
    SvtListenerIter *pNxtIter;
    TypeId aSrchId;             // fuer First/Next - suche diesen Type

    SVL_DLLPRIVATE static void RemoveListener( SvtListenerBase& rDel,
                                               SvtListenerBase* pNext );

public:
    SvtListenerIter( SvtBroadcaster& );
    ~SvtListenerIter();

    const SvtBroadcaster& GetBroadcaster() const    { return rRoot; }
          SvtBroadcaster& GetBroadcaster()          { return rRoot; }

    SvtListener* GoNext();          // to the next
    SvtListener* GoPrev();          // to the previous

    SvtListener* GoStart();         // to the start of the list
    SvtListener* GoEnd();           // to the end of the list

    SvtListener* GoRoot();          // to the root
    SvtListener* GetCurr() const;   // returns the current

    int IsChanged() const       { return pDelNext != pAkt; }

    SvtListener* First( TypeId nType );
    SvtListener* Next();
};


#endif