QT UDP聊天室软件

#include "mainwindow.h" #include "ui_mainwindow.h" #include <QTreeWidgetItem> MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); // initTreeWidget(); sock = new QUdpSocket; mmap.insert(QString::number(this->winId()), "jack"); updateTreeWidget(); sock->bind(8000, QUdpSocket::ReuseAddressHint); online = QString::number(ONLINE) + QString::number(this->winId()); sock->writeDatagram(online.toLocal8Bit(), QHostAddress::Broadcast, 8000); connect(sock, SIGNAL(readyRead()), this, SLOT(dealRecvData())); } MainWindow::~MainWindow() { offline = QString::number(OFFLINE) + QString::number(this->winId()); sock->writeDatagram(offline.toLocal8Bit(), QHostAddress::Broadcast, 8000); delete ui; } void MainWindow::initTreeWidget() { // ui->treeWidget->clear(); QStringList headerlist; headerlist << "WinId" << "Nickname"; ui->treeWidget->setHeaderLabels(headerlist); gitem = new QTreeWidgetItem; gitem->setText(0, "Group"); ui->treeWidget->addTopLevelItem(gitem); // QTreeWidgetItem *child = new QTreeWidgetItem(gitem); } void MainWindow::updateTreeWidget() { qDebug() << "========" << /*gitem->childCount()*/; // if(gitem->childCount()){ //// gitem->takeChildren(); // } if(!mmap.isEmpty()) { QMap<QString, QString>::iterator mi; for(mi = mmap.begin(); mi != mmap.end(); mi++) { QTreeWidgetItem *child = new QTreeWidgetItem; child->setText(0, mi.key()); child->setText(1, mi.value()); gitem->addChild(child); } } gitem->setExpanded(true); } void MainWindow::dealOnline(QByteArray data) { if(!mmap.contains(data.mid(1, data.size() - 1))) { mmap.insert(data.mid(1, data.size() - 1), data.mid(1, data.size() - 1)); sock->writeDatagram(online.toLocal8Bit(), QHostAddress::Broadcast, 8000); updateTreeWidget(); } } void MainWindow::dealOffline(QByteArray data) { } void MainWindow::dealMsg(QByteArray data) { } void MainWindow::dealRecvData() { if(sock->hasPendingDatagrams()) { QByteArray array; qint64 len = sock->pendingDatagramSize(); array.resize(len); QHostAddress ip; quint16 port; sock->readDatagram(array.data(), len, &ip, &port); qDebug() << ip << port; STATUS flag = static_cast<STATUS> (array.at(0) - 48); switch(flag) { case ONLINE: dealOnline(array); break; case OFFLINE: dealOffline(array); break; case MSGDATA: dealMsg(array); break; default: break; } } }