//-------------------------------------------------------------------------------------------------------+
// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
// = FileName	:   TGRegionEx2D 类
// = Version	:   ver2.0
// = Author		:   wlw
// = CreateDate	:   2002-09-09
// = Description:   TGRegionEx2D 声明 任意封闭不自交有效边界线构成的平面联通域
// = Maintainers: 
//                  
//-------------------------------------------------------------------------------------------------------+
#ifndef _TGREGIONEX2D_H_
#define _TGREGIONEX2D_H_

#ifndef _TPGECURVE2D_H_
#include "TPGeCurve2D.h"
#endif

#ifndef _TGREGION2D_H_
#include "TGRegion2D.h"
#endif

#ifndef _TGOBJECTLIST_H_
#include "TGObjectList.h"
#endif

#ifndef _TPDLIST_H_
#include "TPDList.h"
#endif

class TGObject;

class GEOAPI TGRegionEx2D:public TGRegion2D
{
	DECLARE_RUN_TIME_CLASS(TGRegionEx2D)
public:
	//默认有一个NULL外边界
	TGRegionEx2D();
	TGRegionEx2D(TPGeCurve2D* pCurve,bool bCheck = true);
	TGRegionEx2D(const TPGeCurve2D&c,bool bCheck = true);
	TGRegionEx2D(TGObjectList&oList,bool bCheck = true);
	TGRegionEx2D(const TGRegionEx2D&face);
	TGRegionEx2D(const TGRegion2D&face);
	virtual ~TGRegionEx2D();

	virtual TPGeCurve2D* GetBoundary(long i) const;
	virtual long GetBoundaryNum() const;
	virtual TGObject* Clone() const;
	
	//edit
	//检查有效性
	void SetOutline(TPGeCurve2D*pCurve, bool bCheck = true);
	
	//检查有效性,如果不成功，内部自动释放pCurve,无限曲线总要反向
	bool AppendHole(TPGeCurve2D*pCurve, bool bCheck = true);

	void DelHole(long i);
	TPGeCurve2D* FetchHole(long i);
	void ClearHole();
	void Reset();

protected:
	//所有边界线，第一个为外边界,允许为NULL
	TPDList<TPGeCurve2D> curves;

};
#endif