Claw  1.7.3
tween/tweener.hpp
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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 */
00030 #ifndef __CLAW_TWEEN_TWEENER_HPP__
00031 #define __CLAW_TWEEN_TWEENER_HPP__
00032 
00033 #include <algorithm>
00034 #include <boost/function.hpp>
00035 
00036 namespace claw
00037 {
00038   namespace tween
00039   {
00040     class base_tweener;
00041 
00048     class tweener
00049     {
00050     public:
00055       typedef boost::function<void ()> finish_callback;
00056 
00057     public:
00058       tweener();
00059       tweener( const tweener& that );
00060       tweener( const base_tweener& that );
00061       ~tweener();
00062 
00063       tweener& operator=( const tweener& that );
00064 
00065       void swap( tweener& that ) throw();
00066 
00067       bool is_finished() const;
00068       double update( double dt );
00069 
00070       void on_finished( finish_callback f );
00071       
00072     private:
00074       base_tweener* m_impl;
00075       
00076     }; // class tweener
00077 
00078   } // namespace tween
00079 } // namespace claw
00080 
00081 namespace std
00082 {
00083   template<>
00084   void swap( claw::tween::tweener& a, claw::tween::tweener& b );
00085 } // namespace std
00086 
00087 #endif // __CLAW_TWEEN_TWEENER_HPP__