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‎chat.pro

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#-------------------------------------------------
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#
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# Project created by QtCreator 2013-03-05T00:41:57
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#
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#-------------------------------------------------
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QT += core gui
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QT += network
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greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
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TARGET = chat
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TEMPLATE = app
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SOURCES += main.cpp\
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widget.cpp \
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tcpserver.cpp \
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tcpclient.cpp
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HEADERS += widget.h \
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tcpserver.h \
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tcpclient.h
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FORMS += widget.ui \
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tcpserver.ui \
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tcpclient.ui
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RESOURCES += \
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imgs.qrc

‎chat.pro.user

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‎imgs.qrc

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<RCC>
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<qresource prefix="/imgs">
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<file>imgs/bold.ico</file>
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<file>imgs/clear.ico</file>
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<file>imgs/color.ico</file>
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<file>imgs/italic.ico</file>
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<file>imgs/save.ico</file>
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<file>imgs/send.ico</file>
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<file>imgs/underline.ico</file>
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</qresource>
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</RCC>

‎imgs/bold.ico

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‎imgs/clear.ico

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‎imgs/color.ico

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‎imgs/italic.ico

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‎imgs/save.ico

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‎imgs/send.ico

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‎imgs/underline.ico

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‎main.cpp

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#include "widget.h"
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#include <QApplication>
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int main(int argc, char *argv[])
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{
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QApplication a(argc, argv);
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Widget w;
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w.show();
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return a.exec();
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}

‎tcpclient.cpp

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#include "tcpclient.h"
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#include "ui_tcpclient.h"
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#include <QFileDialog>
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#include <QMessageBox>
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TcpClient::TcpClient(QWidget *parent) :
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QDialog(parent),
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ui(new Ui::TcpClient)
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{
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ui->setupUi(this);
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this->setFixedSize(350,180);
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TotalBytes = 0;
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bytesReceived = 0;
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fileNameSize = 0;
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tcpClient = new QTcpSocket(this);
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tcpPort = 6666;
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connect(tcpClient,SIGNAL(readyRead()),this,SLOT(readMessage()));
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connect(tcpClient,SIGNAL(error(QAbstractSocket::SocketError)),this,
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SLOT(displayError(QAbstractSocket::SocketError)));
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}
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TcpClient::~TcpClient()
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{
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delete ui;
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}
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void TcpClient::changeEvent(QEvent *e)
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{
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QDialog::changeEvent(e);
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switch (e->type()) {
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case QEvent::LanguageChange:
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ui->retranslateUi(this);
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break;
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default:
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break;
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}
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}
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void TcpClient::setHostAddress(QHostAddress address)
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{
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hostAddress = address;
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newConnect();
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}
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void TcpClient::newConnect()
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{
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blockSize = 0;
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tcpClient->abort();
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tcpClient->connectToHost(hostAddress,tcpPort);
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time.start();
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}
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void TcpClient::readMessage()
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{
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QDataStream in(tcpClient);
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in.setVersion(QDataStream::Qt_5_0);
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float useTime = time.elapsed();
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if(bytesReceived <= sizeof(qint64)*2){
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if((tcpClient->bytesAvailable() >= sizeof(qint64)*2) && (fileNameSize == 0)){
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in>>TotalBytes>>fileNameSize;
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bytesReceived += sizeof(qint64)*2;
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}
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if((tcpClient->bytesAvailable() >= fileNameSize) && (fileNameSize != 0)){
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in>>fileName;
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bytesReceived +=fileNameSize;
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if(!localFile->open(QFile::WriteOnly)){
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QMessageBox::warning(this,tr("应用程序"),tr("无法读取文件 %1:\n%2.").arg(fileName).arg(localFile->errorString()));
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return;
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}
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}else{
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return;
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}
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}
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if(bytesReceived < TotalBytes){
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bytesReceived += tcpClient->bytesAvailable();
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inBlock = tcpClient->readAll();
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localFile->write(inBlock);
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inBlock.resize(0);
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}
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ui->progressBar->setMaximum(TotalBytes);
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ui->progressBar->setValue(bytesReceived);
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qDebug()<<bytesReceived<<"received"<<TotalBytes;
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double speed = bytesReceived / useTime;
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ui->tcpClientStatusLabel->setText(tr("已接收 %1MB (%2MB/s) \n共%3MB 已用时:%4秒\n估计剩余时间：%5秒")
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.arg(bytesReceived / (1024*1024))
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.arg(speed*1000/(1024*1024),0,'f',2)
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.arg(TotalBytes / (1024 * 1024))
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.arg(useTime/1000,0,'f',0)
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.arg(TotalBytes/speed/1000 - useTime/1000,0,'f',0));
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if(bytesReceived == TotalBytes)
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{
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tcpClient->close();
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ui->tcpClientStatusLabel->setText(tr("接收文件 %1 完毕").arg(fileName));
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localFile->close();
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}
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}
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void TcpClient::displayError(QAbstractSocket::SocketError socketError)
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{
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switch(socketError)
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{
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case QAbstractSocket::RemoteHostClosedError : break;
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default : qDebug() << tcpClient->errorString();
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}
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}
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void TcpClient::on_tcpClientCloseBtn_clicked()
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{
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tcpClient->abort();
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this->close();
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}
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void TcpClient::closeEvent(QCloseEvent *)
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{
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on_tcpClientCloseBtn_clicked();
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}
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void TcpClient::on_tcpClientCancelBtn_clicked()
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{
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tcpClient->abort();
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}
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‎tcpclient.h

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#ifndef TCPCLIENT_H
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#define TCPCLIENT_H
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#include <QDialog>
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#include <QTcpSocket>
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#include <QHostAddress>
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#include <QFile>
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#include <QTime>
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namespace Ui {
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class TcpClient;
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}
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class TcpClient : public QDialog
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{
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Q_OBJECT
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public:
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explicit TcpClient(QWidget *parent = 0);
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~TcpClient();
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void setHostAddress(QHostAddress address);
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void setFileName(QString fileName){localFile = new QFile(fileName);}
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protected:
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void changeEvent(QEvent *);
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void closeEvent(QCloseEvent *);
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private:
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Ui::TcpClient *ui;
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QTcpSocket *tcpClient;
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quint16 blockSize;
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QHostAddress hostAddress;
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qint16 tcpPort;
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qint64 TotalBytes;
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qint64 bytesReceived;
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qint64 bytesToReceive;
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qint64 fileNameSize;
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QString fileName;
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QFile *localFile;
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QByteArray inBlock;
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QTime time;
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private slots:
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void on_tcpClientCloseBtn_clicked();
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void newConnect();
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void readMessage();
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void displayError(QAbstractSocket::SocketError);
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void on_tcpClientCancelBtn_clicked();
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};
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#endif // TCPCLIENT_H

‎tcpclient.ui

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<?xml version="1.0" encoding="UTF-8"?>
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<ui version="4.0">
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<class>TcpClient</class>
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<widget class="QDialog" name="TcpClient">
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<property name="geometry">
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<rect>
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<x>0</x>
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<y>0</y>
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<width>350</width>
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<height>180</height>
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</rect>
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</property>
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<property name="windowTitle">
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<string>接收端</string>
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</property>
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<widget class="QLabel" name="tcpClientStatusLabel">
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<property name="geometry">
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<rect>
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<x>90</x>
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<y>30</y>
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<width>171</width>
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<height>21</height>
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</rect>
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</property>
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<property name="font">
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<font>
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<pointsize>12</pointsize>
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<weight>75</weight>
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<bold>true</bold>
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</font>
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</property>
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<property name="text">
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<string>等待接收文件... ...</string>
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</property>
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<property name="alignment">
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<set>Qt::AlignCenter</set>
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</property>
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</widget>
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<widget class="QProgressBar" name="progressBar">
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<property name="geometry">
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<rect>
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<x>50</x>
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<y>70</y>
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<width>271</width>
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<height>23</height>
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</rect>
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</property>
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<property name="value">
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<number>0</number>
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</property>
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</widget>
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<widget class="QWidget" name="horizontalLayoutWidget">
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<property name="geometry">
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<rect>
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<x>70</x>
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<y>100</y>
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<width>201</width>
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<height>51</height>
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</rect>
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</property>
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<layout class="QHBoxLayout" name="horizontalLayout">
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<item>
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<widget class="QPushButton" name="tcpClientCancelBtn">
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<property name="text">
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<string>取消</string>
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</property>
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</widget>
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</item>
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<item>
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<spacer name="horizontalSpacer">
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<property name="orientation">
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<enum>Qt::Horizontal</enum>
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</property>
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<property name="sizeHint" stdset="0">
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<size>
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<width>40</width>
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<height>20</height>
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</size>
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</property>
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</spacer>
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</item>
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<item>
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<widget class="QPushButton" name="tcpClientCloseBtn">
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<property name="text">
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<string>关闭</string>
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</property>
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</widget>
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</item>
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</layout>
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</widget>
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</widget>
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<resources/>
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<connections/>
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</ui>

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