svtools/inc/listeneriter.hxx

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  30 #ifndef _SVT_LISTENERITER_HXX
  31 #define _SVT_LISTENERITER_HXX
  32
  33 #include "svtools/svldllapi.h"
  34 #include <tools/rtti.hxx>
  35
  36 class SvtListener;
  37 class SvtListenerBase;
  38 class SvtBroadcaster;
  39
  40 //-------------------------------------------------------------------------
  41
  42 class SVL_DLLPUBLIC SvtListenerIter
  43 {
  44     friend class SvtListenerBase;
  45
  46     SvtBroadcaster& rRoot;
  47     SvtListenerBase *pAkt, *pDelNext;
  48
  49     // for the update of all iterator's, if a listener is added or removed
  50     // at the same time.
  51     static SvtListenerIter *pListenerIters;
  52     SvtListenerIter *pNxtIter;
  53     TypeId aSrchId;                             // fuer First/Next - suche diesen Type
  54
  55     SVL_DLLPRIVATE static void RemoveListener( SvtListenerBase& rDel,
  56                                                SvtListenerBase* pNext );
  57
  58 public:
  59     SvtListenerIter( SvtBroadcaster& );
  60     ~SvtListenerIter();
  61
  62     const SvtBroadcaster& GetBroadcaster() const        { return rRoot; }
  63           SvtBroadcaster& GetBroadcaster()                      { return rRoot; }
  64
  65     SvtListener* GoNext();                      // to the next
  66     SvtListener* GoPrev();                      // to the previous
  67
  68     SvtListener* GoStart();             // to the start of the list
  69     SvtListener* GoEnd();                       // to the end of the list
  70
  71     SvtListener* GoRoot();                      // to the root
  72     SvtListener* GetCurr() const;       // returns the current
  73
  74     int IsChanged() const               { return pDelNext != pAkt; }
  75
  76     SvtListener* First( TypeId nType );
  77     SvtListener* Next();
  78 };
  79
  80
  81 #endif
  82