QT实现网络拓扑图

#include <QtGui> #include <QtCore/QProcess> #include <QtNetwork/QHostAddress> #include <QtNetwork/QNetworkInterface> #include <QtNetwork/QNetworkAddressEntry> #include <iostream> #include "nodelink.h" #include "nodeframe.h" NodeFrame::NodeFrame(QWidget *parent):QGraphicsView(parent) { setGeometry(0,0,5000,5000); scene = new QGraphicsScene(0, 0, this->width(), this->height()); setScene(scene); QScrollBar *horBar = this->horizontalScrollBar(); QScrollBar *verBar = this->verticalScrollBar(); horBar->setValue(horBar->maximum()); verBar->setValue(verBar->maximum()); this->pHead = NULL; this->initList(); /* nodelist[0].key =0; nodelist[0].value =0; nodelist[0].hops = 0; nodelist[1].key =1; nodelist[1].value =0; nodelist[1].hops = 1; nodelist[2].key =2; nodelist[2].value =0; nodelist[2].hops = 1; nodelist[3].key =3; nodelist[3].value =0; nodelist[3].hops = 1; nodelist[4].key =4; nodelist[4].value =0; nodelist[4].hops = 1; nodelist[5].key =5; nodelist[5].value =2; nodelist[5].hops = 2; nodelist[6].key =6; nodelist[6].value =2; nodelist[6].hops = 2; nodelist[7].key =7; nodelist[7].value =6; nodelist[7].hops = 3; nodelist[8].key =8; nodelist[8].value =7; nodelist[8].hops = 4;*/ // tr1.recurs_render(tr1.root); // cout << "--------" << endl; initNode = new NetNode(false, "", scene); if(!initNode) QMessageBox::critical(this, "Ip error", "Can't init node info"); if(!setupTopo(initNode)) QMessageBox::critical(this, "Topo init", "Init topo graph error"); } NodeFrame::~NodeFrame() { delete scene; while(this->pHead != NULL) { PNODE pTemp = pHead->pNext; delete pHead; pHead = pTemp; } } void NodeFrame::initList() { int key; int value; int hops; char ans; PNODE pTail,pNew; pTail = NULL; do{ cout<<"请输入一个节点的key："; cin>>key; cout<<"请输入一个节点的value："; cin>>value; cout<<"请输入一个节点的hops："; cin>>hops; if(pHead == NULL) { pHead = new NODE; pHead->key = key; pHead->value = value; pHead->hops = hops; pHead->pNext = NULL; pTail = pHead; } else { // pTail = pHead; while(pTail->pNext!=NULL) pTail = pTail->pNext; pNew = new NODE; pNew->key = key; pNew->value = value; pNew->hops = hops; pNew->pNext = NULL; pTail->pNext = pNew; pTail = pTail->pNext; } cout<<"go on?(Y/N):"; cin>>ans; }while(ans =='Y'||ans=='y'); } void NodeFrame::refresh() { destroyed(scene); setGeometry(0,0,870,520); seqPerLvl.clear(); scene = new QGraphicsScene(0, 0, this->width(), this->height()); this->setScene(scene); // scene->setSceneRect(25,100,870,520); initNode = new NetNode(false, "", scene); if(!initNode) QMessageBox::critical(this, "Ip error", "Can't init node info"); if(!setupTopo(initNode)) QMessageBox::critical(this, "Topo init", "Init topo graph error"); } void NodeFrame::freshFrame() { refresh(); } bool NodeFrame::setupTopo(NetNode *initNode) { seqPerLvl.clear(); if(!initNode) { qDebug() << "NodeFrame::setupTopo" << "initNode is NULL"; return false; } for(int i =1;i<5;i++) { seqPerLvl.append(0); seqPerLvl[i]=0; } PNODE pTemp = this->pHead; for(;pTemp !=NULL;pTemp=pTemp->pNext) { int hops = pTemp->hops; int key = pTemp->key; int value = pTemp->value; int n =0; PNODE ptem = this->pHead; for(;ptem != NULL;ptem=ptem->pNext) { if(key == ptem->value) { n++; } } if(key == 0) { initNode->drawPixmap(0,0,0,0,INITMAXLEVEL, NODEPERLEVEL); node<<initNode; } else { seqPerLvl[hops]++; if(seqPerLvl[hops] >10 || hops > 5) { // seqPerLvl.append(0); // seqPerLvl[hops]=0; // scene->setSceneRect(0,0,870+40*(seqPerLvl[hops] - 10),520+80*(hops - 10)); } NetNode *subNetNode = NULL; subNetNode = new NetNode(true, "", scene); subNetNode->drawPixmap(n,key,hops,seqPerLvl[hops], INITMAXLEVEL, NODEPERLEVEL); qDebug()<<"seqPerLvl[value]:"<<seqPerLvl[value]; node<<subNetNode; NodeLink *link = new NodeLink(node.at(value), node.at(key)); if(link) { link->trackNodes(); scene->addItem(link); } } } return true; }