Simple_Rotation_Handler.hxx

// 
// Copyright (C) 2006 James M. Lawrence.  All rights reserved.
// 
// software: esve-1.0.3
// file: esve/components/dim4/Simple_Rotation_Handler.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_dim4_Simple_Rotation_Handler_hxx
#define esve_components_dim4_Simple_Rotation_Handler_hxx

#include <esve/components/dimn/Motion_Handler.hxx>
#include <esve/components/dimn/Inertial_Motion_Handler.hxx>
#include <esve/types/real.hxx>
#include <memory>

namespace esve { namespace engine { namespace dim4 {

class Transform ;

}}} // namespace esve::engine::dim4

namespace esve { namespace components { namespace dim4 {


class Simple_Rotation_Handler
    : virtual public components::dimn::Inertial_Motion_Handler,
      public components::dimn::Motion_Handler
{
public:
    enum Mapping
    {
        LONGLAT,

        HOPF
    } ;

    explicit Simple_Rotation_Handler( engine::dim4::Transform & ) ;

    virtual Mapping mapping() const ;
    virtual void mapping( Mapping ) ;

    virtual bool slide() const ;
    virtual void slide( bool ) ;

    const engine::dim4::Transform & active_transform() const ;
    void active_transform( engine::dim4::Transform & ) ;

    ~Simple_Rotation_Handler() ;

    void stop() ;
    types::real sensitivity() const ;
    void sensitivity( types::real ) ;

protected:
    bool handle_check_awake( bool ) ;

    void update() ;
    void update( double dt ) ;

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

    class Private ;
    const std::auto_ptr<Private> m ;
} ;

}}} // namespace esve::components::dim4

#endif

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