镜像和平移只要使用实体集中相关的函数即可,同时利用镜像类和平移类实现

class CMirror : public CComand
{
public:
 CMirror();
 virtual ~CMirror();
public:
    void OnLButtonDown(UINT nFlags,  CPosition pos);
    void OnMouseMove(UINT nFlags,  CPosition pos);
    void OnRButtonDown(UINT nFlags,  CPosition pos);
private:
 CHandleCG* m_hand;
 CEraseLine m_erase_line;//追踪类
 CPosition m_begin;
 CPosition m_end;
 
};

class CMove : public CComand//全局即时平移命令
{
public:
 CMove();
 virtual ~CMove();
public:
 void OnLButtonDown(UINT nFlags,  CPosition pos);
    void OnMouseMove(UINT nFlags,  CPosition pos);
    void OnRButtonDown(UINT nFlags,  CPosition pos);
    void OnLButtonUp(UINT nFlags,  CPosition pos);
 void OnMButtonDown(UINT nFlags, CPosition pos);
 void OnMButtonUp(UINT nFlags, CPosition pos);
public:
 CPosition m_begin;
 CPosition m_end;

};

CMove::CMove()
{
    m_nStep = 1;
}

CMove::~CMove()
{

}
void CMove::OnLButtonDown(UINT nFlags,  CPosition pos)
{

}

void CMove::OnMouseMove(UINT nFlags,  CPosition pos)

{
  switch(m_nStep)
 {

case 2 :
  {
       CDC *pDC = g_pView->GetDC();
   
       for (int i = 0; i < (g_pDoc->m_solid).GetSize(); i++)
       {  
    
     (g_pDoc->m_solid[i])->Move(m_begin, pos)->DrawSolid(pDC, Normal);
       }

for (i = 0; i < g_pDoc->m_select.GetSize(); i++)
       {  
    
     (g_pDoc->m_select[i])->Move(m_begin, pos)->DrawSolid(pDC, Normal);
       }
   
    m_begin = pos;
       g_pView->Invalidate();
       g_pView->ReleaseDC(pDC);
  }

break;
 default:
  break;

}
  
}

void CMove::OnRButtonDown(UINT nFlags,  CPosition pos)
{
     
}

void CMove::OnLButtonUp(UINT nFlags,  CPosition pos)
{
     m_nStep = 1;
}

void CMove::OnMButtonDown(UINT nFlags, CPosition pos)
{
      switch(m_nStep)
 {
 case 1 :
  {
  m_begin = m_end = pos;
     m_nStep++;
  break;
  }
 
 case 2 :
  {

m_nStep = 1;
   break;
  }
 default:
  break;

}
}

void CMove::OnMButtonUp(UINT nFlags, CPosition pos)
{
      m_nStep = 1;
}

CBaseMove::CBaseMove()//带基点的平移类
{
    m_nStep = 1;
}

CBaseMove::~CBaseMove()
{

}

CMirror::CMirror()//镜像
{
    m_nStep = 1;
 m_hand = new CHandleCG(&g_pDoc->m_solid, &g_pDoc->m_select);

}

CMirror::~CMirror()
{

}

void CMirror::OnLButtonDown(UINT nFlags,  CPosition pos)
{

switch(m_nStep)
   {
 
   case 1://输出提示信息
   {
    
   m_begin = pos;

m_nStep++;
     m_erase_line.SetBegin(pos); //八个方向，并且如果在指定范围内，得到按下的点的坐标
     break;
    
   }
    
    case 2:
   {

m_erase_line.SetBegin(pos);

CDC *pDC = g_pView->GetDC();
//       m_hand->Mirror(m_begin, pos, Normal);
         m_nStep = 1;
       g_pView->ReleaseDC(pDC);

}
   default:
      break;
  }
 
  
}

void CMirror::OnMouseMove(UINT nFlags,  CPosition pos)
{

m_erase_line.SetEnd(pos);

switch(m_nStep)
  {
  case 2:
  
      
   CDC *pDC = g_pView->GetDC();

m_hand->Mirror(m_begin, m_end, Drag);

//      g_pDoc->DrawSolid(pDC, Normal);//重画

m_hand->Mirror(m_begin, pos, Normal);

m_end  = pos;
 
    
      g_pView->ReleaseDC(pDC);
  
 
   break;
  }
   
}

void CMirror::OnRButtonDown(UINT nFlags,  CPosition pos)
{

m_erase_line.SetCancle(pos);
}