#pragma once

#include <stdint.h>

#include <thread>

#include <QObject>
#include <QEvent>


class SpaceNavEventTranslate;
class SpaceNavEventRotate;
class SpaceNavEventButton;


class SpaceNavEventHandler {
public:

	virtual ~SpaceNavEventHandler( void) {};

	virtual void SpaceNav_translate( SpaceNavEventTranslate* event) = 0;
	virtual void SpaceNav_rotate( SpaceNavEventRotate* event) = 0;
	virtual void SpaceNav_button( SpaceNavEventButton* event) = 0;

};




class SpaceNavEvent :
public QEvent {
public:

	SpaceNavEvent( void) : QEvent( my_type) {};
	virtual ~SpaceNavEvent( void) {};

	virtual void deliver( SpaceNavEventHandler* receiver) = 0;

	static const QEvent::Type my_type;

};




class SpaceNavEventTranslate :
public SpaceNavEvent {
public:

	const int16_t x;
	const int16_t y;
	const int16_t z;

	SpaceNavEventTranslate( int16_t u, int16_t v, int16_t w) :
		x( u),
		y( v),
		z( w) {
	}

	void deliver( SpaceNavEventHandler* receiver) {
		receiver->SpaceNav_translate( this);
	}

};




class SpaceNavEventRotate :
public SpaceNavEvent {
public:

	const int16_t x;
	const int16_t y;
	const int16_t z;

	SpaceNavEventRotate( int16_t u, int16_t v, int16_t w) :
		x( u),
		y( v),
		z( w) {
	}

	void deliver( SpaceNavEventHandler* receiver) {
		receiver->SpaceNav_rotate( this);
	}

};




class SpaceNavEventButton :
public SpaceNavEvent {
public:

	const uint16_t down;
	const uint16_t up;

	SpaceNavEventButton( uint16_t d, uint16_t u) :
		down( d),
		up( u) {
	}

	void deliver( SpaceNavEventHandler* receiver) {
		receiver->SpaceNav_button( this);
	}

};




class SpaceNav {
public:

	SpaceNav( void);
	~SpaceNav( void);
	void operator()( void);

private:
	class Impl;

	std::thread* pimpl_thread;

};


extern SpaceNav spacenav;