Show_FPS.hxx

// 
// Copyright (C) 2006 James M. Lawrence.  All rights reserved.
// 
// software: esve-1.0.3
// file: esve/components/dimn/Show_FPS.hxx
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 
// 2. The origin of this software must not be misrepresented; you must
//    not claim that you wrote the original software.  If you use this
//    software in a product, an acknowledgment in the product 
//    documentation would be appreciated but is not required.
// 
// 3. Altered source versions must be plainly marked as such, and must
//    not be misrepresented as being the original software.
// 
// 4. The name of the author may not be used to endorse or promote
//    products derived from this software without specific prior written
//    permission.
// 
// THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY,
// AND WITH NO CLAIM AS TO ITS SUITABILITY FOR ANY PURPOSE.  IN NO EVENT
// SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM WHATSOEVER MADE IN CONNECTION
// TO THIS SOFTWARE.
// 

#ifndef esve_components_dimn_Show_FPS_hxx
#define esve_components_dimn_Show_FPS_hxx

#include <esve/message/impl/Update_Receiver.hxx>
#include <iosfwd>

namespace esve { namespace components { namespace dimn {


class Show_FPS
    : virtual public message::impl::Update_Receiver
{
public:
    Show_FPS() ;

    double sampling_interval() const
    {
        return m_sampling_interval ;
    }

    void sampling_interval( double ) ;

    const std::ostream & output() const ;
    void output( std::ostream & ) ;

    ~Show_FPS() ;

protected:
    void update() ;
    void update( double dt ) ;
    
private:
    Show_FPS( const Show_FPS & ) ;
    Show_FPS & operator=( const Show_FPS & ) ;

    double m_sampling_interval ;
    double m_elapsed ;
    int m_visit ;
    std::ostream* m_output ;
} ;

}}} // namespace esve::components::dimn

#endif

---