svtools/source/notify/broadcast.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_svtools.hxx"
  33
  34 #ifndef GCC
  35 #endif
  36 #include <tools/debug.hxx>
  37
  38 #include "listener.hxx"
  39 #include "listeneriter.hxx"
  40 #include "broadcast.hxx"
  41 #include <svtools/smplhint.hxx>
  42
  43
  44 //====================================================================
  45 TYPEINIT0(SvtBroadcaster);
  46
  47 //====================================================================
  48
  49 // simple ctor of class SvtBroadcaster
  50
  51 SvtBroadcaster::SvtBroadcaster()
  52     : pRoot( 0 )
  53 {
  54 }
  55
  56 //--------------------------------------------------------------------
  57
  58 // copy ctor of class SvtBroadcaster
  59
  60 SvtBroadcaster::SvtBroadcaster( const SvtBroadcaster &rBC )
  61     : pRoot( 0 )
  62 {
  63     SvtListenerIter aIter( (SvtBroadcaster&)rBC );
  64     SvtListener* pLast = aIter.GoStart();
  65     if( pLast )
  66         do {
  67             pLast->StartListening( *this );
  68         } while( 0 != ( pLast = aIter.GoNext() ));
  69 }
  70
  71 //--------------------------------------------------------------------
  72
  73 // unregister all listeners
  74
  75 SvtBroadcaster::~SvtBroadcaster()
  76 {
  77     Broadcast( SfxSimpleHint(SFX_HINT_DYING) );
  78
  79     SvtListenerIter aIter( *this );
  80     SvtListener* pLast = aIter.GoStart();
  81     if( pLast )
  82         do {
  83             pLast->EndListening( *this );
  84             if( !HasListeners() )               // all gone ??
  85                 break;
  86         } while( 0 != ( pLast = aIter.GoNext() ));
  87 }
  88
  89 //--------------------------------------------------------------------
  90
  91 // broadcast immedeately
  92
  93 void SvtBroadcaster::Broadcast( const SfxHint &rHint )
  94 {
  95     // is anybody to notify?
  96     if( HasListeners() /* && !IsModifyLocked()*/ )
  97     {
  98 //              LockModify();
  99 //              bInModify = TRUE;
 100
 101         SvtListenerIter aIter( *this );
 102         SvtListener* pLast = aIter.GoStart();
 103         if( pLast )
 104             do {
 105                 pLast->Notify( *this, rHint );
 106                 if( !HasListeners() )           // all gone ??
 107                     break;
 108             } while( 0 != ( pLast = aIter.GoNext() ));
 109
 110 //              bInModify = FALSE;
 111 //              UnlockModify();
 112     }
 113 }
 114
 115 //--------------------------------------------------------------------
 116
 117
 118 // called, if no more listeners exists
 119
 120 void SvtBroadcaster::ListenersGone()
 121 {
 122 }
 123
 124 //--------------------------------------------------------------------
 125
 126 // forward a notification to all registered listeners
 127
 128 void SvtBroadcaster::Forward( SvtBroadcaster& rBC, const SfxHint& rHint )
 129 {
 130     // is anybody to notify?
 131     if( rBC.HasListeners() /* && !IsModifyLocked()*/ )
 132     {
 133 //              LockModify();
 134 //              bInModify = TRUE;
 135
 136         SvtListenerIter aIter( rBC );
 137         SvtListener* pLast = aIter.GoStart();
 138         if( pLast )
 139             do {
 140                 pLast->Notify( rBC, rHint );
 141                 if( !rBC.HasListeners() )               // all gone ??
 142                     break;
 143             } while( 0 != ( pLast = aIter.GoNext() ));
 144
 145 //              bInModify = FALSE;
 146 //              UnlockModify();
 147     }
 148 }
 149
 150
 151