Z_Clipper.hxx

// 
// Copyright (C) 2006 James M. Lawrence.  All rights reserved.
// 
// software: esve-1.0.3
// file: esve/components/dim3/Z_Clipper.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_dim3_Z_Clipper_hxx
#define esve_components_dim3_Z_Clipper_hxx

#include <esve/message/impl/Compute_Receiver.hxx>
#include <esve/types/real.hxx>

namespace esve { namespace engine { namespace dim3 {

class Camera ;

}}} // namespace esve::engine::dim3

namespace esve { namespace components { namespace dim3 {

class Min_Z ;


class Z_Clipper
    : virtual public message::impl::Compute_Receiver
{
public:
    Z_Clipper( engine::dim3::Camera &, const Min_Z & ) ;

    types::real clip_step() const
    {
        return m_clip_step ;
    }

    void clip_step( types::real a )
    {
        m_clip_step = a ;
    }

    types::real scale() const
    {
        return m_scale ;
    }

    void scale( types::real a )
    {
        m_scale = a ;
    }

    ~Z_Clipper() ;

protected:
    void compute() ;

private:
    Z_Clipper( const Z_Clipper & ) ;
    Z_Clipper & operator=( const Z_Clipper & ) ;

    engine::dim3::Camera & m_camera ;
    const Min_Z & m_min_z ;
    types::real m_clip_step ;
    types::real m_scale ;
} ;

}}} // namespace esve::components::dim3

#endif

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