svtools/inc/broadcast.hxx

   1 /*************************************************************************
   2  *
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * Copyright 2008 by Sun Microsystems, Inc.
   6  *
   7  * OpenOffice.org - a multi-platform office productivity suite
   8  *
   9  * $RCSfile: broadcast.hxx,v $
  10  * $Revision: 1.4 $
  11  *
  12  * This file is part of OpenOffice.org.
  13  *
  14  * OpenOffice.org is free software: you can redistribute it and/or modify
  15  * it under the terms of the GNU Lesser General Public License version 3
  16  * only, as published by the Free Software Foundation.
  17  *
  18  * OpenOffice.org is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU Lesser General Public License version 3 for more details
  22  * (a copy is included in the LICENSE file that accompanied this code).
  23  *
  24  * You should have received a copy of the GNU Lesser General Public License
  25  * version 3 along with OpenOffice.org.  If not, see
  26  * <http://www.openoffice.org/license.html>
  27  * for a copy of the LGPLv3 License.
  28  *
  29  ************************************************************************/
  30 #ifndef _SVT_BROADCAST_HXX
  31 #define _SVT_BROADCAST_HXX
  32
  33 #include "svtools/svldllapi.h"
  34 #include <tools/rtti.hxx>
  35
  36 class SvtListener;
  37 class SfxHint;
  38 class SvtListenerBase;
  39
  40 //-------------------------------------------------------------------------
  41
  42 class SVL_DLLPUBLIC SvtBroadcaster
  43 {
  44 friend class SvtListener;
  45 friend class SvtListenerBase;
  46 friend class SvtListenerIter;
  47     SvtListenerBase* pRoot;
  48
  49     const SvtBroadcaster&       operator=(const SvtBroadcaster &); // verboten
  50
  51 protected:
  52     void                                        Forward( SvtBroadcaster& rBC,
  53                                      const SfxHint& rHint );
  54     virtual void                        ListenersGone();
  55
  56 public:
  57                             TYPEINFO();
  58
  59                             SvtBroadcaster();
  60                             SvtBroadcaster( const SvtBroadcaster &rBC );
  61     virtual                             ~SvtBroadcaster();
  62
  63     void                                        Broadcast( const SfxHint &rHint );
  64
  65     BOOL                                        HasListeners() const { return 0 != pRoot; }
  66 };
  67
  68
  69 #endif
  70