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#include "CGLA/Vec2i.h"
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#include "CGLA/Vec2i.h"
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#include "CGLA/Vec2f.h"
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#include "CGLA/Vec2f.h"
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#include "CGLA/Vec3f.h"
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#include "CGLA/Vec3f.h"
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#include "CGLA/Vec3Hf.h"
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#include "CGLA/Vec3Hf.h"
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#include "CGLA/Quaternion.h"
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#include "CGLA/Quatf.h"
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namespace GLGraphics
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namespace GLGraphics
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{
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{
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	enum TrackBallAction
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	enum TrackBallAction
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	{
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	{
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		CGLA::Vec3f centre;
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		CGLA::Vec3f centre;
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		CGLA::Vec2i screen_centre;
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		CGLA::Vec2i screen_centre;
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		unsigned width, height;
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		unsigned width, height;
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		CGLA::Quaternion	qrot;
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		CGLA::Quatf	qrot;
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		CGLA::Quaternion	qinc;
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		CGLA::Quatf	qinc;
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		CGLA::Vec2f	trans;
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		CGLA::Vec2f	trans;
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		CGLA::Vec3f scale;
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		CGLA::Vec3f scale;
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		float	ballsize;
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		float	ballsize;
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		float eye_dist;
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		float eye_dist;
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		CGLA::Vec2f last_pos;
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		CGLA::Vec2f last_pos;
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		{
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		{
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			screen_centre[0] = _screen_centre[0];
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			screen_centre[0] = _screen_centre[0];
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			screen_centre[1] = height - _screen_centre[1];
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			screen_centre[1] = height - _screen_centre[1];
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		}
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		}
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		const CGLA::Quaternion& get_rotation() const
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		const CGLA::Quatf& get_rotation() const
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		{
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		{
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			return qrot;
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			return qrot;
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		}
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		}
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		void set_rotation(const CGLA::Quaternion& _qrot)
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		void set_rotation(const CGLA::Quatf& _qrot)
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		{
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		{
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			qrot = _qrot;
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			qrot = _qrot;
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		}
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		}
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		void set_eye_dist(float _eye_dist)
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		void set_eye_dist(float _eye_dist)