kev/Drawer/Module/GeoSigmaDraw/ItemCurve.h

//////////////////////////////////////////////////////////////////////////////
//<2F>ļ<EFBFBD>: CItem<65><6D><EFBFBD><EFBFBD>չ
//<2F><>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>: 
//		<09><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD>ػ<EFBFBD><D8BB><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>Ĺ<EFBFBD><C4B9><EFBFBD>
//
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д:		2006-12-07
//
//
/////////////////////////////////////////////////////////////////////////////

#pragma once
#include "item.h"
#include "SpatialIndex.h"


namespace NItem
{
#define PEN_COLOR	RGB(255,0,0)

#define CURVE_STATE_LINE	0
#define CURVE_STATE_ARC		1
#define CURVE_STATE_ANGLE	2
#define CURVE_STATE_SPLINE	3
#define CURVE_STATE_MERGE	4	//<2F>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD>깦<EFBFBD><EAB9A6>
#define CURVE_STATE_DRAWING	5


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

	BOOL OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message) override;
	void OnLButtonDblClk(UINT nFlags, CPoint point) override;
	void OnLButtonDown(CDC *pDC, UINT nFlags, CPoint point, int vk) override;
	void RemoveAssistantLineTailPoint();
	int OnMouseMove(CDC* pDC, UINT nFlags, CPoint point) override;
	void DrawAssistant(CDC * pScreenDC, int mouseX, int mouseY) override;//ͼ<><CDBC><EFBFBD><EFBFBD>Ļ<EFBFBD>ػ<EFBFBD><D8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><D8BB><EFBFBD>ʱ<EFBFBD><CAB1>
	void OnLButtonUp(CDC* pDC, UINT nFlags, CPoint point, int vk) override;
	BOOL OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags) override;
	BOOL OnKeyUp(UINT nChar, UINT nRepCnt, UINT nFlags) override;
	virtual void OnDraw(CXyDC* pXyDC, CDC* pDC) override;
	int  GetSubMenu() override;
	virtual void SetCurveState(int state, CDC * pDC);
	void RestoreCurveState(void);

	dfPoint GetRealPoint(CPointList& pl, UINT nFlags, CPoint point);
	static int PopupNameDialog(CXy* pxy, POSITION pos);
	void Reset(void);
	virtual void OnCancel(void) override;

	bool GetAngleAndDistance(double &angle, double &distance) const;
	
protected:
	class REDO_ITEM
	{
	public:
		REDO_ITEM(void)
		{
			num=1;
			bHead=FALSE;
			pos=NULL;
		};
		dfPoint point;
		BOOL bHead;		//FALSEΪ<45><CEAA>βRedo,TRUEΪ<45><CEAA>ʼRedo
		int num;		//Redo<64>ĵ<EFBFBD><C4B5><EFBFBD><EFBFBD><EFBFBD>
		POSITION pos;	//PointList<73>е<EFBFBD>λ<EFBFBD>ã<EFBFBD>NULL<4C><4C>ʾɾ<CABE><C9BE><EFBFBD>㣬<EFBFBD><E3A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD>ӵ<EFBFBD>
	};
	CList<REDO_ITEM,REDO_ITEM> RedoList,UndoList;
	CPen m_pen;
	BOOL    m_bStretchStart;
	dfPoint CurPoint;


	
	void GetAnglePoint(dfPoint &ddp, double angle);

private:
	void storeAngleAndDistance(dfPoint& point1, dfPoint& point2);
	void clearAngleAndDistance();

	// <20><>¼<EFBFBD><C2BC>ǰ<EFBFBD><C7B0><EFBFBD>ߵ<EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>ǰһ<C7B0><D2BB><EFBFBD><EFBFBD><EFBFBD>ĽǶ<C4BD>
	double m_angle = std::numeric_limits<double>::quiet_NaN();
	// <20><>¼<EFBFBD><C2BC>ǰ<EFBFBD><C7B0><EFBFBD>ߵ<EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>ǰһ<C7B0><D2BB><EFBFBD><EFBFBD><EFBFBD>ľ<EFBFBD><C4BE><EFBFBD>
	double m_distance = std::numeric_limits<double>::quiet_NaN();

public:
	int m_oldLineState;
	int m_AddLineState;
	CPointList PointList;
	dfPoint m_dpLastMousePos;
	BOOL m_bContinuePen;
	BOOL m_bAuxiliaryCurveRedraw;//ȫͼ<C8AB>ػ棬<D8BB>ػ<EFBFBD><D8BB><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>ߣ<EFBFBD><DFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƥ<EFBFBD><C6A4><EFBFBD><EFBFBD>
	
	virtual void AutoClose(void);
	virtual void AddPoint(dfPoint point);
	virtual POSITION AddPoint(dfPoint point, BOOL bHead);
	virtual int RemoveAt(POSITION pos);
	POSITION InsertPointWithPointDistance(double x, double y);
	void AddPointFromCoordinate(double x, double y);
	void Draw(CXyDC* pDC, CPointList& pl, COLORREF color);
	void DrawAssistantCurve();
	void DrawAssistantLineLastSegment();
	void RemoveAssistantLineFirstPoint();
	void DrawRubberLine();
	void EraseRubberLine();
	void EraseAuxiliaryLines(CDC * pScreenDC);
	void EraseScreenLines();
	void RedrawScreenLines();
	virtual POSITION NextCurve(void);
	virtual void Undo(void);
	virtual void Redo(void);
	virtual BOOL IsCanUndo(void);
	virtual BOOL IsCanRedo(void);
	void ClearRedoList(void);
	BOOL IsLineState(void);
	COne* CItemCurve::CreateOne();

	double m_isSnapEnabled = true;
	double m_snapRange = 20.0;

	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>ܹ<EFBFBD><DCB9>ӳٹ<D3B3><D9B9><EFBFBD> CSpatialIndex<65><78><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀǰ<C4BF><C7B0>Ȼ<EFBFBD>ǹ<EFBFBD><C7B9>캯<EFBFBD><ECBAAF><EFBFBD><EFBFBD><EFBFBD>湹<EFBFBD><E6B9B9><EFBFBD><EFBFBD>
	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> CXy <20><>ͳһ<CDB3><D2BB><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><CDB2><EFBFBD>Ҫ<EFBFBD><D2AA>
	std::unique_ptr<CSpatialIndex> m_pSpatialIndex;
	//void OnMouseMove(UINT nFlags, CPoint point);
};

};