#pragma once
#include "GlobalDefine.h"
#include "ObjBase.h"
#include "SmartPtr.h"

//鼠标捕捉管理
class CCatchMgr
{
public:
      CCatchMgr(void);
      ~CCatchMgr(void);
      void Clear();
      void Catch(Dbxy DownPt,Dbxy pt,CDC* pDC,bool bCatchTemp);
      void ResetCatchPoint(CDC* pDC);
      bool GetCatchPoint(CPoint &pt);
private:
      void CatchNode(DbRect rect);
      void CatchIntersectPointOfLines(DbRect rect);
      void CatchIntersectPointWithMouse(DbRect rect);
      void ResetCatchNode();
      bool HasCatchPoint();
      void DrawCatchPoint(CCatchPoint pt,CDC* pDC);
      void DrawCatchPointExt(CCatchPoint pt,CDC* pDC);
      CCatchPoint GetNearestCatchPt(Dbxy pt);
      void GetLineInRect(DbRect &rect,bool bCatchTemp);
      void CatchOrthoPoint(Dbxy DownPt,Dbxy MousePt,DbRect rect);
      void CatchCutTrack(DbRect rect);
private:
      vector<DbLine>                     m_DataPtLineVec;//保存rect 范围内所有的线段
      vector<CCatchPoint>             m_CatchPointVec;//在鼠标范围内的捕获点的容器
      CCatchPoint                           m_CatchNode;//之前抓取的点
};

extern CCatchMgr gCatchMgr;