Supermouse_Motion_Handler.hxx

// 
// Copyright (C) 2006 James M. Lawrence.  All rights reserved.
// 
// software: esve-1.0.3
// file: esve/components/dimn/Supermouse_Motion_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_dimn_Supermouse_Motion_Handler_hxx
#define esve_components_dimn_Supermouse_Motion_Handler_hxx

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

namespace esve { namespace components { namespace dimn {


class Supermouse_Motion_Handler
    : virtual public Inertial_Motion_Handler,
      public components::dimn::Motion_Handler,
      public Supermouse_Handler
{
public:
    types::real sensitivity() const ;
    void sensitivity( types::real ) ;

    ~Supermouse_Motion_Handler() ;

protected:
    // rotation units
    static const types::real RADIANS_PER_PIXEL ;

    // in milliradians per pixel
    static const types::real DEFAULT_SENSITIVITY ;

    // Upon button release, if less than this amount of time has
    // passed (in seconds) since the last drag, then start motion.
    static const types::real MOTION_TRIGGER_TIME ;

    Supermouse_Motion_Handler() ;

    const types::pure & u() const ;

    const types::pure & du_dt() const ;

    const types::pure & d2u_dt2() const ;

    const types::pure & du_dt( Button b ) const ;

    const types::pure & d2u_dt2( Button b ) const ;

    bool handle_supermouse_move( const Supermouse & ) ;
    bool handle_supermouse_push( Button,
                                 const Supermouse & ) ;
    bool handle_supermouse_release( Button,
                                    const Supermouse & ) ;

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

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

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

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

#endif

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