#include "StdAfx.h"
#include "MouseToolDelNode.h"
#include "GlobalDrawMgr.h"
#include "Layer.h"
#include "GlobalFunction.h"
#include "CommandDelNode.h"
#include "CommandMgr.h"
#include "LogMgr.h"

CMouseToolDelNode::CMouseToolDelNode(void)
{
}
CMouseToolDelNode::~CMouseToolDelNode(void)
{
}
void CMouseToolDelNode::OnLButtonDown(UINT nFlags, CPoint point,CClientDC &dc)
{
     Dbxy pt = gDraw->CPoint2Dbxy(point);
     DbRect rect = gDraw->GetCurPointRect(pt);
     
     CLayer &layer = gLayer;
     if(!layer.HasObjectInRect(rect))
     {
         gLogMgr->WriteDebugLog("对象不在范围之内",_LOG_ERROR);
         return;
     }
     //先找到第一个在rect 的obj -----------------------------------------------
     Sptr<CObjBase> pObj = layer.GetFirstObjInRect(rect);
     if(pObj->GetPtCnt()<=2)//只删除3 个点以上的对象
     {
         gLogMgr->WriteDebugLog("只能删除3个点以上的对象",_LOG_ERROR);
         return;
     }
     //获得obj 在rect 中的第一个node 点-----------------------------------------------
     vector<DbLine> LineVec;
     pObj->GetLineInRect(rect,LineVec,false);

     if(LineVec.empty())
         return;
     Dbxy NodePt = LineVec[0].m_pt1.GetPt();
     if(!IsPointInRect(NodePt,rect))
     {
          NodePt = LineVec[0].m_pt2.GetPt();
     }
     if(!IsPointInRect(NodePt,rect))
     {
         gLogMgr->WriteDebugLog("节点不在范围内",_LOG_ERROR);
         return;
     }
     //获得NodePt 在obj 的序号
     int idx = pObj->GetNodePtIdx(NodePt);
     if(idx!=-1 && idx!=0)
     {
          pObj->DelNodePtByIdx(idx);

          //创建撤销指令-----------------------------------
          CCommandDelNode *p = new CCommandDelNode;
          p->SetPar(idx,NodePt);
          p->AddOpObj(pObj);
          gCommandMgr.AddUndoCommand(p);
          //刷新
          GetCurViewPtr()->RefreshView();
     }
}