Claw  1.7.3
tweener.cpp
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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 */
29 #include <claw/tween/tweener.hpp>
30 
31 #include <claw/tween/base_tweener.hpp>
32 
33 /*----------------------------------------------------------------------------*/
37 claw::tween::tweener::tweener()
38  : m_impl(NULL)
39 {
40 
41 } // tweener::tweener()
42 
43 /*----------------------------------------------------------------------------*/
48 claw::tween::tweener::tweener( const tweener& that )
49  : m_impl( that.m_impl == NULL ? NULL : that.m_impl->clone() )
50 {
51 
52 } // tweener::tweener()
53 
54 /*----------------------------------------------------------------------------*/
59 claw::tween::tweener::tweener( const base_tweener& that )
60  : m_impl( that.clone() )
61 {
62 
63 } // tweener::tweener()
64 
65 /*----------------------------------------------------------------------------*/
69 claw::tween::tweener::~tweener()
70 {
71  delete m_impl;
72 } // tweener::~tweener()
73 
74 /*----------------------------------------------------------------------------*/
79 claw::tween::tweener& claw::tween::tweener::operator=( const tweener& that )
80 {
81  tweener tmp(that);
82  swap(tmp);
83  return *this;
84 } // tweener::operator=()
85 
86 /*----------------------------------------------------------------------------*/
91 void claw::tween::tweener::swap( tweener& that ) throw()
92 {
93  std::swap(m_impl, that.m_impl);
94 } // tweener::swap()
95 
96 /*----------------------------------------------------------------------------*/
100 bool claw::tween::tweener::is_finished() const
101 {
102  if ( m_impl == NULL )
103  return true;
104  else
105  return m_impl->is_finished();
106 } // tweener::is_finished()
107 
108 /*----------------------------------------------------------------------------*/
113 double claw::tween::tweener::update( double dt )
114 {
115  if ( m_impl == NULL )
116  return dt;
117  else
118  return m_impl->update(dt);
119 } // tweener::update()
120 
121 /*----------------------------------------------------------------------------*/
125 void claw::tween::tweener::on_finished( finish_callback f )
126 {
127  if ( m_impl != NULL )
128  m_impl->on_finished(f);
129 } // tweener::on_finished()
130 
131 /*----------------------------------------------------------------------------*/
137 template<>
138 void std::swap( claw::tween::tweener& a, claw::tween::tweener& b )
139 {
140  a.swap(b);
141 } // std::swap()
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