#ifndef TSTENCILCONTROL_H
#define TSTENCILCONTROL_H

#include "tcommon.h"

#undef DVAPI
#undef DVVAR
#ifdef TGL_EXPORTS
#define DVAPI DV_EXPORT_API
#define DVVAR DV_EXPORT_VAR
#else
#define DVAPI DV_IMPORT_API
#define DVVAR DV_IMPORT_VAR
#endif

//------------------------------------------------------

//singleton
class DVAPI TStencilControl
{
public:
	enum MaskType {
		SHOW_INSIDE = 0,
		SHOW_OUTSIDE
	};

	enum DrawMode {
		DRAW_ONLY_MASK = 0,
		DRAW_ALSO_ON_SCREEN,
		DRAW_ON_SCREEN_ONLY_ONCE
	};

private:
	class Imp;
	Imp *m_imp;

public:
	static TStencilControl *instance();

	TStencilControl();
	~TStencilControl();

	void beginMask(DrawMode drawMode = DRAW_ONLY_MASK);
	void endMask();

	void enableMask(MaskType maskType);
	void disableMask();
};

//------------------------------------------------------

#endif