Claw  1.7.3
tweener.hpp
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1 /*
2  CLAW - a C++ Library Absolutely Wonderful
3 
4  CLAW is a free library without any particular aim but being useful to
5  anyone.
6 
7  Copyright (C) 2005-2011 Julien Jorge
8 
9  This library is free software; you can redistribute it and/or
10  modify it under the terms of the GNU Lesser General Public
11  License as published by the Free Software Foundation; either
12  version 2.1 of the License, or (at your option) any later version.
13 
14  This library is distributed in the hope that it will be useful,
15  but WITHOUT ANY WARRANTY; without even the implied warranty of
16  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  Lesser General Public License for more details.
18 
19  You should have received a copy of the GNU Lesser General Public
20  License along with this library; if not, write to the Free Software
21  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22  contact: julien.jorge@gamned.org
23 */
30 #ifndef __CLAW_TWEEN_TWEENER_HPP__
31 #define __CLAW_TWEEN_TWEENER_HPP__
32 
33 #include <algorithm>
34 #include <boost/function.hpp>
35 
36 namespace claw
37 {
38  namespace tween
39  {
40  class base_tweener;
41 
48  class tweener
49  {
50  public:
55  typedef boost::function<void ()> finish_callback;
56 
57  public:
58  tweener();
59  tweener( const tweener& that );
60  tweener( const base_tweener& that );
61  ~tweener();
62 
63  tweener& operator=( const tweener& that );
64 
65  void swap( tweener& that ) throw();
66 
67  bool is_finished() const;
68  double update( double dt );
69 
70  void on_finished( finish_callback f );
71 
72  private:
74  base_tweener* m_impl;
75 
76  }; // class tweener
77 
78  } // namespace tween
79 } // namespace claw
80 
81 namespace std
82 {
83  template<>
84  void swap( claw::tween::tweener& a, claw::tween::tweener& b );
85 } // namespace std
86 
87 #endif // __CLAW_TWEEN_TWEENER_HPP__