Claw  1.7.3
code/tween/tweener.cpp
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00001 /*
00002   CLAW - a C++ Library Absolutely Wonderful
00003 
00004   CLAW is a free library without any particular aim but being useful to 
00005   anyone.
00006 
00007   Copyright (C) 2005-2011 Julien Jorge
00008 
00009   This library is free software; you can redistribute it and/or
00010   modify it under the terms of the GNU Lesser General Public
00011   License as published by the Free Software Foundation; either
00012   version 2.1 of the License, or (at your option) any later version.
00013 
00014   This library is distributed in the hope that it will be useful,
00015   but WITHOUT ANY WARRANTY; without even the implied warranty of
00016   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00017   Lesser General Public License for more details.
00018 
00019   You should have received a copy of the GNU Lesser General Public
00020   License along with this library; if not, write to the Free Software
00021   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00022   contact: julien.jorge@gamned.org
00023 */
00029 #include <claw/tween/tweener.hpp>
00030 
00031 #include <claw/tween/base_tweener.hpp>
00032 
00033 /*----------------------------------------------------------------------------*/
00037 claw::tween::tweener::tweener()
00038   : m_impl(NULL)
00039 {
00040 
00041 } // tweener::tweener()
00042 
00043 /*----------------------------------------------------------------------------*/
00048 claw::tween::tweener::tweener( const tweener& that )
00049   : m_impl( that.m_impl == NULL ? NULL : that.m_impl->clone() )
00050 {
00051 
00052 } // tweener::tweener()
00053 
00054 /*----------------------------------------------------------------------------*/
00059 claw::tween::tweener::tweener( const base_tweener& that )
00060   : m_impl( that.clone() )
00061 {
00062 
00063 } // tweener::tweener()
00064 
00065 /*----------------------------------------------------------------------------*/
00069 claw::tween::tweener::~tweener()
00070 {
00071   delete m_impl;
00072 } // tweener::~tweener()
00073 
00074 /*----------------------------------------------------------------------------*/
00079 claw::tween::tweener& claw::tween::tweener::operator=( const tweener& that )
00080 {
00081   tweener tmp(that);
00082   swap(tmp);
00083   return *this;
00084 } // tweener::operator=()
00085 
00086 /*----------------------------------------------------------------------------*/
00091 void claw::tween::tweener::swap( tweener& that ) throw()
00092 {
00093   std::swap(m_impl, that.m_impl);
00094 } // tweener::swap()
00095 
00096 /*----------------------------------------------------------------------------*/
00100 bool claw::tween::tweener::is_finished() const
00101 {
00102   if ( m_impl == NULL )
00103     return true;
00104   else
00105     return m_impl->is_finished();
00106 } // tweener::is_finished()
00107 
00108 /*----------------------------------------------------------------------------*/
00113 double claw::tween::tweener::update( double dt )
00114 {
00115   if ( m_impl == NULL )
00116     return dt;
00117   else
00118     return m_impl->update(dt);
00119 } // tweener::update()
00120 
00121 /*----------------------------------------------------------------------------*/
00125 void claw::tween::tweener::on_finished( finish_callback f )
00126 {
00127   if ( m_impl != NULL )
00128     m_impl->on_finished(f);
00129 } // tweener::on_finished()
00130 
00131 /*----------------------------------------------------------------------------*/
00137 template<>
00138 void std::swap( claw::tween::tweener& a, claw::tween::tweener& b )
00139 {
00140   a.swap(b);
00141 } // std::swap()