#pragma once

#ifndef TNZ_CHECKBOX_INCLUDED

#define TNZ_CHECKBOX_INCLUDED

//#include "tcommon.h"

#include "tw/tw.h"

#include "tw/action.h"

#undef DVAPI

#undef DVVAR

#ifdef TWIN_EXPORTS

#define DVAPI DV_EXPORT_API

#define DVVAR DV_EXPORT_VAR

#else

#define DVAPI DV_IMPORT_API

#define DVVAR DV_IMPORT_VAR

#endif

class TCheckBoxActionInterface;

class DVAPI TCheckBox : public TWidget

{

	class TCheckBoxData;

	TCheckBoxData *m_data;

public:

	TCheckBox(TWidget *parent, string name = "button");

	~TCheckBox();

	void repaint();

	void leftButtonDown(const TMouseEvent &);

	void leftButtonUp(const TMouseEvent &);

	bool isSelected() const;

	void addAction(TCheckBoxActionInterface *);

	void select(bool on);

	bool isGray() const;

	void setIsGray(bool on);

	// per default switchOff e' abilitato. se disabilitato il checkbox si puo'

	// spegnare solo con select(false) (e non con il mouse). Questo serve

	// per implementare un gruppo di radio button (in cui si puo' fare click

	// solo su quelli spenti)

	void enableSwitchOff(bool enabled);

};

class DVAPI TCheckBoxActionInterface

{

public:

	TCheckBoxActionInterface() {}

	virtual ~TCheckBoxActionInterface() {}

	virtual void triggerAction(TCheckBox *checkbox, bool selected) = 0;

};

template <class t=""></class>

class TCheckBoxAction : public TCheckBoxActionInterface

{

	typedef void (T::*Method)(TCheckBox *checkbox, bool selected);

	T *m_target;

	Method m_method;

public:

	TCheckBoxAction(T *target, Method method) : m_target(target), m_method(method) {}

	void triggerAction(TCheckBox *checkbox, bool selected) { (m_target->*m_method)(checkbox, selected); }

};

template <class t=""></class>

inline void tconnect(TCheckBox &src, T *target, void (T::*method)(TCheckBox *checkbox, bool selected))

{

	src.addAction(new TCheckBoxAction<t>(target, method));</t>

}

#endif