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56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
#include "StdAfx.h"
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#include "MouseToolAddNode.h"
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#include "GlobalDrawMgr.h"
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#include "Layer.h"
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#include "GlobalFunction.h"
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#include "CommandAddNode.h"
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#include "CommandMgr.h"
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CMouseToolAddNode::CMouseToolAddNode(void)
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{
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}
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CMouseToolAddNode::~CMouseToolAddNode(void)
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{
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}
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void CMouseToolAddNode::OnLButtonDown(UINT nFlags, CPoint point,CClientDC &dc)
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{
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Dbxy pt = gDraw->CPoint2Dbxy(point);
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DbRect rect = gDraw->GetCurPointRect(pt);
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CLayer &layer = gLayer;
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if(!layer.HasObjectInRect(rect))
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return;
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//先找到第一个在rect 的obj -----------------------------------------------
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Sptr<CObjBase> pObj = layer.GetFirstObjInRect(rect);
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//获得obj 在rect 中的第一条线段-----------------------------------------------
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vector<DbLine> LineVec;
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pObj->GetLineInRect(rect,LineVec,false);
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Dbxy LinePt1 = LineVec[0].m_pt1.GetPt();
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Dbxy LinePt2 = LineVec[0].m_pt2.GetPt();
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if(IsPointInRect(LinePt1,rect)||IsPointInRect(LinePt2,rect))//不要在端点附近添加
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{
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return;
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}
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//得到鼠标rect 线段的交点--------------------------------------------------
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Dbxy MousePt = IntersectionOfRectAndLine(LinePt1,LinePt2,rect);
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//获得LinePt1 在obj 的序号
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int idx = pObj->GetNodePtIdx(LinePt1);
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if(idx!=-1)
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{
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//插入到LinePt1 点的后面-------------------------
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pObj->InsertNode(idx+1,MousePt);
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pObj->SetSelected(true);
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//创建撤销指令-----------------------------------
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CCommandAddNode *p = new CCommandAddNode;
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p->SetPar(idx+1,MousePt);
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p->AddOpObj(pObj);
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gCommandMgr.AddUndoCommand(p);
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//刷新
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GetCurViewPtr()->RefreshView();
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}
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}
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