//////////////////////////////////////////////////////////////////////////////
//文件: CItem类扩展
//主要功能: 
//		操作各类元素或完成一定的功能
//
//程序编写:		2006-12-07
//
//
/////////////////////////////////////////////////////////////////////////////

#pragma once
#include ".\itemlinkcurve.h"


namespace NItem
{

	class CItemSolidLink :
		public CItemLinkCurve
	{
	public:
		CItemSolidLink(CSigmaDoc * ppDoc);
		virtual ~CItemSolidLink(void);

		virtual BOOL DoSelectEnd(void);
		int  GetSubMenu() override;

		void ClearAssistantCurve(void);
		CList<POSITION, POSITION> AssistantCurveList;	//辅助线列表
	};

	class CItemSolid : public CItemSolidLink
	{
	public:
		CItemSolid(CSigmaDoc * ppDoc);
		virtual ~CItemSolid(void);
		int m_iMaxExtendLength;

	protected:
		class CURVE_SEGMENT
		{
		public:
			CURVE_SEGMENT(void)
			{
				m_bExtend = FALSE;
				head = -1e100;
				tail = 1e100;
				pCurve = NULL;
				m_bExtendLastCurve = FALSE;
			};
			int m_bExtend = FALSE;
			double head, tail;
			CCurveEx* pCurve;

			//为了UNDO与REDO而备份状态
			CCrossPoint PrevPoint;
			int m_bExtendLastCurve = 0;
		};
		CList<CURVE_SEGMENT, CURVE_SEGMENT> CurveGroup;
		CCrossPoint PrevPoint, FirstPoint;
		BOOL m_bExtendFirstCurve = FALSE;
		BOOL m_bExtendLastCurve = FALSE;

		CCrossPoint GetPoint(SELECT_ITEM& item, CCurveEx* p1, CCurveEx* p2, CCrossPoint& otherPoint);
		BOOL CreateTwoCurveSolid(SELECT_ITEM& item1, SELECT_ITEM& item2);

	public:
		virtual BOOL SelectItem(POSITION pos, CPoint2D point) override;
		virtual BOOL DoSelectEnd(void);
		int  GetSubMenu() override;
		int OnMouseMove(CDC* pDC, UINT nFlags, CPoint point) override;
		virtual void Undo(void);

		static CCrossPoint GetNearestCrossPoint(CCrossList& cross, CPoint2D point);
		int CrossWithExtend(CCurveEx* p1, CCurveEx* p2, CCrossList& cross);
		int CrossWithMustExtend(CCurveEx* p1, CCurveEx* p2, CCrossList& cross);
		void GetCurve(CURVE_SEGMENT& segment, CList <dfPoint, dfPoint>& list);
		POSITION CreateCurve(CList<CURVE_SEGMENT, CURVE_SEGMENT>& cg);
	};

	class CItemPathFill :
		public CItem
	{
	public:
		CItemPathFill(CSigmaDoc * ppDoc);
		virtual ~CItemPathFill(void);

		//virtual BOOL InitPropertyGrid(CXTPPropertyGrid& grid);
		//virtual BOOL OnGridItemChangeValue(CXTPPropertyGridItem* pItem);

	protected:
		CString m_strBlockName;
		COLORREF m_colFill = RGB(0, 0, 0);	//填充色
		int		m_fillMode;	//填充方式
	};

	//自动填充 ITEM
	class CItemSolidAuto :
		public CItem
	{
	public:
		CItemSolidAuto(CSigmaDoc * ppDoc);
		virtual ~CItemSolidAuto(void);
		int m_iMaxExtendLength;

		virtual void OnLButtonDown(CDC *pDC, UINT nFlags, CPoint point, int vk) override;
		virtual BOOL OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message) override;

		/** @brief 得到所有曲线*/
		void GetCurves();
		void ClearCurveList(void);
		int GetSubMenu();

		CCurveEx* CreateSolid();
		CCurveEx* GetMinInsideCurve();

		double CItemSolidAuto::CrossProduct(dfPoint p, dfPoint q);
		// 判断两线段是否相交,并求得交点,p1、q1是线段1的首尾端点，p2、q2是线段2的首尾端点，cr是交点
		bool CItemSolidAuto::Cross(dfPoint p1, dfPoint q1, dfPoint p2, dfPoint q2, dfPoint& cr);
	public:
		CPtrList CurveList;
		CPtrList InsideCurveList;
		dfPoint dfp;
	};

};