binfilter/inc/bf_svtools/brdcst.hxx

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  30 #ifndef _SFXBRDCST_HXX
  31 #define _SFXBRDCST_HXX
  32
  33 #ifndef _RTTI_HXX //autogen
  34 #include <tools/rtti.hxx>
  35 #endif
  36
  37 #ifndef _SVARRAY_HXX
  38 #include <bf_svtools/svarray.hxx>
  39 #endif
  40
  41 namespace binfilter {
  42
  43 class SfxListener;
  44 class SfxHint;
  45
  46 SV_DECL_PTRARR( SfxListenerArr_Impl, SfxListener*, 0, 2 )
  47
  48 #define SFX_FORWARD( rBC, rBCT, rHint, rHintT ) \
  49                 Forward( rBC, rHint )
  50
  51 //-------------------------------------------------------------------------
  52
  53 class  SfxBroadcaster
  54 {
  55 friend class SfxListener;
  56
  57         SfxListenerArr_Impl     aListeners;
  58
  59 private:
  60         BOOL             AddListener( SfxListener& rListener );
  61         void                                    RemoveListener( SfxListener& rListener );
  62         const SfxBroadcaster&   operator=(const SfxBroadcaster &); // verboten
  63
  64 protected:
  65         void                                    SFX_FORWARD(SfxBroadcaster& rBC, const TypeId& rBCType,
  66                                                                                 const SfxHint& rHint, const TypeId& rHintType);
  67         virtual void                    ListenersGone();
  68
  69 public:
  70                                                         TYPEINFO();
  71
  72                                                         SfxBroadcaster();
  73                                                         SfxBroadcaster( const SfxBroadcaster &rBC );
  74         virtual                                 ~SfxBroadcaster();
  75
  76         void                                    Broadcast( const SfxHint &rHint );
  77
  78         BOOL                                    HasListeners() const;
  79         USHORT                                  GetListenerCount() const { return aListeners.Count(); }
  80         SfxListener*                    GetListener( USHORT nNo ) const
  81                                                         { return (SfxListener*) aListeners[nNo]; }
  82 };
  83
  84 }
  85
  86 #endif