#ifndef __VIEWPORTRESIZE_H
#define __VIEWPORTRESIZE_H



#define HV_ONSIDE 0x01 //在边上或在顶点上
#define HV_ONEXTEND 0x02 //在延长线上

#define VP_RESIZE_EX 1  //包括延长线命中的目标进行拖曳
#define VP_RESIZE    2  //只有边界命中的目标进行拖曳
#define VP_COPY      3  //只有边界命中的目标进行复制
#define VP_MOVE      4  //只有边界命中的目标进行移动


class TUTIL_IMPEXP THitViewport { //命中视窗的信息
public:
    TViewportInfo m_id;
    Adesk::UInt8 m_nHitFlag; 

    //顶点或边的序号: 1--底边,2--右边,3--上边,4--左边
    //                1--左下,2--右下,3--右上,4--左上
    Adesk::UInt8 m_nHitPosition; 
public:
    THitViewport():m_nHitFlag(0), m_nHitPosition(0) {
    }
    CRect GetRectOnHitPos(int nMethod, CPoint ptHitFirst, CPoint ptNew) const;
};



class TUTIL_IMPEXP TViewportResize {
public:
    static int m_nApplyMethod;
    static CPoint m_ptOld;
    static CPoint m_ptFirstHit;
    static BOOL m_bApplied; //是否已经执行了生效
    //static BOOL m_bApplyExtend; //是否对延长线命中的目标也生效
    static BOOL m_bTracking;
    static DList<THitViewport> m_lstHitObjects; //所有命中的目标

public:
    TViewportResize();
    static int GetApplyMethod(int nFlags);
    static void StartTracking();
    static void StopTracking(BOOL bAccept, BOOL bApplyExtend);
    static BOOL ApplyChange();
    static BOOL OnCaptureChanged(CWnd *pWnd) ;
    static BOOL OnMouseMove(UINT nFlags, CPoint point);
    static BOOL OnLButtonDown(UINT nFlags, CPoint point);
    static BOOL OnLButtonUp(UINT nFlags, CPoint point);
    static BOOL OnEscape();
    static const TCHAR *HitTest(int nMethod, CPoint point, DList<THitViewport> &m_lstHitObjcts);
};

//读取视口信息
TUTIL_IMPEXP void ReadVports(DList<TViewportInfo> &vpInfo);

#endif