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#ifndef GFXBASEBALL_INCLUDED // -*- C++ -*-
#define GFXBASEBALL_INCLUDED
#if !defined(__GNUC__)
# pragma once
#endif
/************************************************************************
Common base class for ball-based rotators (e.g., Trackball & Arcball).
$Id: baseball.h 6292 2005-07-01 20:09:07Z abmann $
************************************************************************/
#include "quat.h"
class Baseball
{
public:
Vec3 ctr; // Describes bounding sphere of object
double radius; //
Quat curquat; // Current rotation of object
Vec3 trans; // Current translation of object
public:
Baseball();
// Required initialization method
template<class T>
void bounding_sphere(const TVec3<T>& v, T r) { ctr=v; radius=r; }
// Standard event interface provide by all Ball controllers
virtual void update_animation() = 0;
virtual bool mouse_down(int *where, int which) = 0;
virtual bool mouse_up(int *where, int which) = 0;
virtual bool mouse_drag(int *where, int *last, int which) = 0;
// Interface for use during drawing to apply appropriate transformation
virtual void apply_transform();
virtual void unapply_transform();
// Interface for reading/writing transform
virtual void write(std::ostream&);
virtual void read(std::istream&);
};
// GFXBASEBALL_INCLUDED
#endif
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