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/*
*
* Copyright (C) 2000 Silicon Graphics, Inc. All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or:
*
* http://www.sgi.com
*
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
*
*/
// -*- C++ -*-
/*
* Copyright (C) 1991 Silicon Graphics, Inc.
*
_______________________________________________________________________
______________ S I L I C O N G R A P H I C S I N C . ____________
|
| $Revision: 1.1.1.1 $
|
| Description:
| Callback list - a list of callback functions and associated data,
| with member functions to add, remove, and invoke callbacks.
|
| Classes: SoCallbackList
|
| Author(s): David Mott
|
______________ S I L I C O N G R A P H I C S I N C . ____________
_______________________________________________________________________
*/
#ifndef _SO_CALLBACK_LIST_
#define _SO_CALLBACK_LIST_
#include <Inventor/SbPList.h>
//////////////////////////////////////////////////////////////////////////////
//
// Class: SoCallbackList
//
//////////////////////////////////////////////////////////////////////////////
// Callback functions that are registered with this class should
// be cast to this type.
typedef void SoCallbackListCB(void *userData, void *callbackData);
// C-api: prefix=SoCBList
class SoCallbackList {
public:
SoCallbackList();
~SoCallbackList();
//
// Managing callback functions
// At callback time, f will be called with userData as the first
// parameter, and callback specific data as the second parameter.
// e.g. (*f)(userData, callbackData);
// C-api: name=addCB
void addCallback(SoCallbackListCB *f, void *userData = NULL);
// C-api: name=removeCB
void removeCallback(SoCallbackListCB *f, void *userData = NULL);
// C-api: name=clearCB
void clearCallbacks() { list.truncate(0); }
// C-api: name=getNumCB
int getNumCallbacks() const { return list.getLength(); }
// C-api: name=invokeCB
void invokeCallbacks(void *callbackData);
private:
// callbackList holds a list of functions and user data
SbPList list;
};
#endif /* _SO_CALLBACK_LIST_ */
|
