#include "StdAfx.h"
#include "MouseToolBreakNode.h"
#include "GlobalDrawMgr.h"
#include "Layer.h"
#include "GlobalFunction.h"
#include "CommandDelNode.h"
#include "CommandBreakNode.h"
#include "ObjPline.h"
#include "CommandMgr.h"


CMouseToolBreakNode::CMouseToolBreakNode(void)
{
}
CMouseToolBreakNode::~CMouseToolBreakNode(void)
{
}
void CMouseToolBreakNode::OnLButtonDown(UINT nFlags, CPoint point,CClientDC &dc)
{
     Dbxy pt = gDraw->CPoint2Dbxy(point);
     DbRect rect = gDraw->GetCurPointRect(pt);
     
     CLayer &layer = gLayer;
     if(!layer.HasObjectInRect(rect))
         return;
     //先找到第一个在rect 的obj -----------------------------------------------
     Sptr<CObjBase> pObj = layer.GetFirstObjInRect(rect);
     //获得obj 在rect 中的第一个node 点-----------------------------------------------
     vector<DbLine> LineVec;
     pObj->GetLineInRect(rect,LineVec,false);
     Dbxy NodePt = LineVec[0].m_pt1.GetPt();
     if(!IsPointInRect(NodePt,rect))
     {
          NodePt = LineVec[0].m_pt2.GetPt();
     }
     if(!IsPointInRect(NodePt,rect))
         return;
     //获得NodePt 在obj 的序号
     int idx = pObj->GetNodePtIdx(NodePt);
     if(idx!=-1 && idx!=0)
     {
          //前一部分
          CObjPline *pPline1 = new CObjPline;
          pPline1->CopyPt(*(pObj.GetPtr()));
          pPline1->SetSelected(true);
          int ptCnt = pPline1->GetPtCnt();
          for(int i=0;i<(ptCnt-(idx+1));i++)
          {
              pPline1->DelLastDataPoint();
          }
          //后一部分
          CObjPline *pPline2 = new CObjPline;
          pPline2->CopyPt(*(pObj.GetPtr()));
          pPline2->SetSelected(true);
          for(int i=0;i<idx;i++)
          {
              pPline2->DelNodePtByIdx(0);
          }
          //创建撤销指令-----------------------------------
          Sptr<CObjBase> pObj1(pPline1);
          Sptr<CObjBase> pObj2(pPline2);
          m_TmpObjContainer.AddObject(pObj1);
          m_TmpObjContainer.AddObject(pObj2);
          
          m_TmpObjContainer.AllObjAddToLayer();
          m_TmpObjContainer.Clear();//清空容器
          gLayer.DelObj(pObj);

          //创建撤销指令
          CCommandBreakNode *pCmd = new CCommandBreakNode;
          pCmd->AddOpObj(pObj);
          pCmd->AddOpObj(pObj1);
          pCmd->AddOpObj(pObj2);
          gCommandMgr.AddUndoCommand(pCmd);
          //刷新
          GetCurViewPtr()->RefreshView();
     }
}