//////////////////////////////////////////////////////////////////////////////////////////////////////////
//功能: 图件外切
//编程: 
//日期: 2009-7-15
//////////////////////////////////////////////////////////////////////////////////////////////////////////

#pragma once
#include "Xy.h"
#include "CurveAnd.h"

class AFX_EXT_CLASS CCutOut
{
public:
	CCutOut(void);
	virtual ~CCutOut(void);

public:
	CXy* GetXY(void);

	void SetXY(CXy* pXY);								//在调用切图之前，必须先设置图件内容
	void SetSourceCurveRange(CCurveEx* pCurveRange);	//如果有任意多边形做为剪切区域时，需要指定源曲线，以便判断不进行计算	

	int CutOut(CCurveEx* pCurveRange, CPositionList* values);
	int CutOut(CCurveEx* pCurveRange);
	int CutOutOld(CCurveEx* pCurveRange);

	CPositionList m_plDel, m_plAdd;	//切图完成后，需要删除的元素及已经增加的元素
	double m_dMiniCurveSmoothStep;

	void ClearList(void);
	void DeleteElement(CPositionList& plDel);

protected:
	int CutOutCurveSolid(POSITION pos, CCurveAnd& ca, COne* pSourceOne, CPositionList& plAdd);
	int CutOutCurve		(POSITION pos, CCurveAnd& ca, COne* pSourceOne, CPositionList& plAdd);

	int RemoveFlags(CHowToViewCurve* pvc, UINT nFlagsType);
	CHowToViewCurve* GetSolidHowToViewCurve(CHowToViewCurve* pvc);
	CHowToViewCurve* GetPlineHowToViewCurve(CHowToViewCurve* pvc);

protected:
	CCurveEx* m_pSourceCurveRange;
	CXy* m_pXY;

private:
	/**
	 * 判断两条线前面部分是否重合
	 * 
	 * \param mainCurve 
	 * \param subCurve
	 * \return 
	 */
	bool IsCurveStartsWith(const CCurveEx& mainCurve, const CCurveEx& subCurve) const;
};

class AFX_EXT_CLASS CCutIn : public CCutOut
{
public:
	CCutIn(void);
	virtual ~CCutIn(void);

	int CutIn(CCurveEx* pCurveRange);

protected:
	int CutInCurveSolid	(POSITION pos, CCurveAnd& ca, COne* pSourceOne, CPositionList& plAdd);
	int CutInCurve		(POSITION pos, CCurveAnd& ca, COne* pSourceOne, CPositionList& plAdd);

	BOOL CutInImage(CImageInsert* pImage, CCurveEx* pCurveRange);
	BOOL CutInMesh(CMesh* pMesh, CCurveEx* pCurveRange);
	CCurveEx* GetXorRange(CRect8& rect, CCurveEx* pCurveRange);
};