Fawkes API  Fawkes Development Version
nothing.h
1 
2 /***************************************************************************
3  * nothing.h - Header of a filter that does nothing. Wonderful, isn't it.
4  * Used in FilterFactory to avoid NULL checks
5  *
6  * Created: Fri Jun 17 13:28:21 2005
7  * Copyright 2005-2007 Tim Niemueller [www.niemueller.de]
8  *
9  ****************************************************************************/
10 
11 /* This program is free software; you can redistribute it and/or modify
12  * it under the terms of the GNU General Public License as published by
13  * the Free Software Foundation; either version 2 of the License, or
14  * (at your option) any later version. A runtime exception applies to
15  * this software (see LICENSE.GPL_WRE file mentioned below for details).
16  *
17  * This program is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20  * GNU Library General Public License for more details.
21  *
22  * Read the full text in the LICENSE.GPL_WRE file in the doc directory.
23  */
24 
25 #ifndef _FIREVISION_FILTER_NOTHING_H_
26 #define _FIREVISION_FILTER_NOTHING_H_
27 
28 #include <fvfilters/filter.h>
29 
30 namespace firevision {
31 
32 /** @class FilterNothing <fvfilters/nothing.h>
33  * A filter that does... nothing.
34  * @author Tim Niemueller
35  */
36 
37 class FilterNothing : public Filter
38 {
39 public:
40  /** Constructor. */
41  FilterNothing() : Filter("FilterNothing")
42  {
43  }
44 
45  virtual void
46  apply()
47  {
48  }
49 };
50 
51 } // end namespace firevision
52 
53 #endif
firevision::FilterNothing::apply
virtual void apply()
Definition: nothing.h:53
firevision::FilterNothing::FilterNothing
FilterNothing()
Constructor.
Definition: nothing.h:48
firevision::Filter::Filter
Filter(const char *name, unsigned int max_num_buffers=1)
Constructor.
Definition: filter.cpp:51