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#ifndef GFXTRACKBALL_INCLUDED // -*- C++ -*-
#define GFXTRACKBALL_INCLUDED
#if !defined(__GNUC__)
# pragma once
#endif
/************************************************************************
Virtual trackball rotation control.
$Id: trackball.h 427 2004-09-27 04:45:31Z garland $
************************************************************************/
#include "baseball.h"
namespace gfx
{
extern void trackball(Quat& q, float p1x, float p1y, float p2x, float p2y);
class Trackball : public Baseball
{
public:
Quat lastquat;
public:
Trackball();
virtual void update_animation();
virtual bool mouse_down(int *where, int which);
virtual bool mouse_up(int *where, int which);
virtual bool mouse_drag(int *where, int *last, int which);
};
} // namespace gfx
// GFXTRACKBALL_INCLUDED
#endif
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