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