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//////////////////////////////////////////////////////////////////////////////
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//文件: CItem类扩展
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//主要功能:
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// 操作各类元素或完成一定的功能
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//
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//程序编写: 2006-12-07
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//
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//
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/////////////////////////////////////////////////////////////////////////////
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#pragma once
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#include "item.h"
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#include "SpatialIndex.h"
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namespace NItem
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{
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#define PEN_COLOR RGB(255,0,0)
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#define CURVE_STATE_LINE 0
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#define CURVE_STATE_ARC 1
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#define CURVE_STATE_ANGLE 2
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#define CURVE_STATE_SPLINE 3
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#define CURVE_STATE_MERGE 4 //合并坐标功能
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#define CURVE_STATE_DRAWING 5
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class CItemCurve :
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public CItem
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{
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public:
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CItemCurve(CSigmaDoc * ppDoc);
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virtual ~CItemCurve(void);
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BOOL OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message) override;
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void OnLButtonDblClk(UINT nFlags, CPoint point) override;
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void OnLButtonDown(CDC *pDC, UINT nFlags, CPoint point, int vk) override;
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void RemoveAssistantLineTailPoint();
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int OnMouseMove(CDC* pDC, UINT nFlags, CPoint point) override;
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void DrawAssistant(CDC * pScreenDC, int mouseX, int mouseY) override;//图件屏幕重绘后，重绘临时线
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void OnLButtonUp(CDC* pDC, UINT nFlags, CPoint point, int vk) override;
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BOOL OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags) override;
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BOOL OnKeyUp(UINT nChar, UINT nRepCnt, UINT nFlags) override;
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virtual void OnDraw(CXyDC* pXyDC, CDC* pDC) override;
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int GetSubMenu() override;
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virtual void SetCurveState(int state, CDC * pDC);
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void RestoreCurveState(void);
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dfPoint GetRealPoint(CPointList& pl, UINT nFlags, CPoint point);
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static int PopupNameDialog(CXy* pxy, POSITION pos);
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void Reset(void);
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virtual void OnCancel(void) override;
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bool GetAngleAndDistance(double &angle, double &distance) const;
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protected:
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class REDO_ITEM
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{
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public:
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REDO_ITEM(void)
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{
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num=1;
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bHead=FALSE;
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pos=NULL;
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};
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dfPoint point;
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BOOL bHead; //FALSE为结尾Redo,TRUE为开始Redo
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int num; //Redo的点个数
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POSITION pos; //PointList中的位置，NULL表示删除点，否则表示增加点
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};
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CList<REDO_ITEM,REDO_ITEM> RedoList,UndoList;
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CPen m_pen;
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BOOL m_bStretchStart;
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dfPoint CurPoint;
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void GetAnglePoint(dfPoint &ddp, double angle);
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private:
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void storeAngleAndDistance(dfPoint& point1, dfPoint& point2);
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void clearAngleAndDistance();
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// 记录当前画线当前点和前一个点的角度
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double m_angle = std::numeric_limits<double>::quiet_NaN();
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// 记录当前画线当前点和前一个点的距离
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double m_distance = std::numeric_limits<double>::quiet_NaN();
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public:
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int m_oldLineState;
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int m_AddLineState;
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CPointList PointList;
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dfPoint m_dpLastMousePos;
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BOOL m_bContinuePen;
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BOOL m_bAuxiliaryCurveRedraw;//全图重绘，重画的临时线，包括橡皮筋线
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virtual void AutoClose(void);
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virtual void AddPoint(dfPoint point);
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virtual POSITION AddPoint(dfPoint point, BOOL bHead);
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virtual int RemoveAt(POSITION pos);
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POSITION InsertPointWithPointDistance(double x, double y);
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void AddPointFromCoordinate(double x, double y);
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void Draw(CXyDC* pDC, CPointList& pl, COLORREF color);
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void DrawAssistantCurve();
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void DrawAssistantLineLastSegment();
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void RemoveAssistantLineFirstPoint();
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void DrawRubberLine();
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void EraseRubberLine();
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void EraseAuxiliaryLines(CDC * pScreenDC);
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void EraseScreenLines();
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void RedrawScreenLines();
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virtual POSITION NextCurve(void);
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virtual void Undo(void);
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virtual void Redo(void);
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virtual BOOL IsCanUndo(void);
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virtual BOOL IsCanRedo(void);
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void ClearRedoList(void);
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BOOL IsLineState(void);
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COne* CItemCurve::CreateOne();
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double m_isSnapEnabled = true;
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double m_snapRange = 20.0;
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// 这里用指针是为了能够延迟构造 CSpatialIndex，尽管我们目前仍然是构造函数里面构造的
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// 后面会在 CXy 中统一构造空间索引，到时这个就不需要了
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std::unique_ptr<CSpatialIndex> m_pSpatialIndex;
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//void OnMouseMove(UINT nFlags, CPoint point);
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};
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}; |