mainwindow.cpp

mainwindow.cpp

+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+
+static QTcpSocket *socket;
+int ifconnected=0;
+QString labelbuff;
+QVector<QString> textbuffer(10000);
+int textbuffer_index=0;
+bool if_loadfile=false;
+int textbuffer_size = 0;
+QFont font1;
+QFont font2;
+QPalette palette1;
+QPalette palette2;
+
+MainWindow::MainWindow(QWidget *parent) :
+    QMainWindow(parent),
+    ui(new Ui::MainWindow)
+{
+    ui->setupUi(this);
+    //ui->lineEdit->setText("127.0.0.1");
+    ui->lineEdit->setText("192.168.0.103");
+    ui->lineEdit_2->setText("1234");
+    ui->lineEdit_3->setText("Hello Gateway!");
+
+    socket = new QTcpSocket(this);
+    connect(socket,SIGNAL(connected()), this, SLOT(connected()));
+    connect(socket,SIGNAL(disconnected()), this, SLOT(disconnected()));
+    connect(socket,SIGNAL(readyRead()), this, SLOT(readyRead()));
+    connect(socket,SIGNAL(bytesWritten(qint64)),this,SLOT(bytesWritten(qint64)));
+
+    font1.setPixelSize(50);
+    //font2.setPixelSize(11);
+    font2=ui->textBrowser->font();
+    //font2.setFamily(font.defaultFamily());
+    palette1.setColor(QPalette::WindowText,Qt::red);
+    palette2.setColor(QPalette::WindowText,Qt::black);
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}
+
+void MainWindow::on_pushButton_clicked() // Connect/Disconnect-Button
+{
+    if(ifconnected)                     //connected, then break the connection
+    {
+        ifconnected=0;
+        socket->disconnectFromHost();
+    }
+    else                                //not conneted, then connect to host
+    {
+        ifconnected=1;
+        socket->connectToHost(ui->lineEdit->text(),ui->lineEdit_2->text().toInt());
+    }
+}
+
+void MainWindow::on_pushButton_2_clicked() // Send-Button
+{
+    if(socket->state()==QAbstractSocket::ConnectedState)
+    {
+        if(if_loadfile)
+        {
+            //backup:       socket->write(ui->lineEdit_3->text().toUtf8());
+            if(ui->checkBox->checkState()== Qt::Checked){
+                //socket->write(ui->lineEdit_3->te
+                  //ui->textBrowser->li
+                socket->write(ui->lineEdit_3->text().toUtf8()); //send the current content in the box and show the next line
+                if(ui->lineEdit_3->text()!=textbuffer[textbuffer_index]) return;
+                if(textbuffer_index<textbuffer_size-1)
+                {
+                    textbuffer_index++;
+                    qDebug()<<textbuffer_size;
+                }
+                refresh_codepad();
+                ui->lineEdit_3->setText(textbuffer[textbuffer_index]);
+            }
+            else{
+                for(int i = textbuffer_index; i < textbuffer_size; i++)
+                {
+                    socket->write(textbuffer[i].toUtf8());
+                }
+                textbuffer_index=textbuffer_size-1;
+                refresh_codepad();
+                ui->lineEdit_3->setText(textbuffer[textbuffer_index]);
+            }
+        }
+        else
+            socket->write(ui->lineEdit_3->text().toUtf8());
+    }
+    else
+    {
+        ui->textBrowser->append("Unconnected to server, please connect...");
+    }
+}
+
+void MainWindow::connected()
+{
+    qDebug() << "Connected!";
+    ui->pushButton->setText("disconnect");
+    ui->textBrowser->append("Connected");
+}
+
+
+
+void MainWindow::disconnected()
+{
+    qDebug() << "Disconnected!";
+    ui->pushButton->setText("connect");
+    ui->textBrowser->append("Disconnected");
+}
+
+
+void MainWindow::bytesWritten (qint64 bytes)
+{
+    qDebug() << "we wrote: " << bytes;
+    labelbuff="we wrote: ";
+    labelbuff.append(QString::number(bytes));
+    labelbuff.append(" bytes");
+    ui->textBrowser->append(labelbuff);
+}
+
+
+void MainWindow::readyRead()
+{
+    qDebug() << "Reading...";
+    //qDebug() << socket->readAll();
+    ui->textBrowser->append("Reading...");
+    ui->textBrowser->append(QString::fromUtf8(socket->readAll()));
+}
+
+void MainWindow::on_pushButton_3_clicked()
+{
+        this->close();
+}
+
+void MainWindow::on_pushButton_4_clicked()
+{
+    QString filename = QFileDialog::getOpenFileName(this,"Open THE File","","(*.*)");
+    QFile file(filename);
+    if (file.open(QFile::ReadOnly)) {
+        //ui->lineEdit_3->setText(file.readAll());
+
+        /*if(ui->checkBox->checkState()== Qt::Unchecked){
+        }
+        else{
+            char buf[][12];
+            while(1)
+            {
+                qint64 lineLength = file.readLine(buf, sizeof(buf));
+                if (lineLength != -1) {
+                  //ui->label_3->
+                  ui->textBrowser->append(buf);
+                }
+                else
+                {
+                    break;
+                }
+            }
+        //}
+        */
+        if_loadfile=true;
+        int i = 0;
+        textbuffer_index = 0;
+        char buf[1024];
+        while(1)
+        {
+            qint64 lineLength = file.readLine(buf, sizeof(buf));
+            if (lineLength != -1) {
+              textbuffer[i]= QString::fromStdString(buf);
+              i++;
+            }
+            else
+            {
+                break;
+            }
+
+        }
+        textbuffer_size=i;
+        refresh_codepad();
+        ui->lineEdit_3->setText(textbuffer[0]);
+
+    }
+}
+
+void MainWindow::on_checkBox_clicked()
+{
+
+}
+
+void MainWindow::on_pushButton_5_clicked() //last line
+{
+    if(if_loadfile)
+    {
+        if(textbuffer_index>0)
+        {
+            textbuffer_index--;
+        }
+        ui->lineEdit_3->setText(textbuffer[textbuffer_index]);
+    }
+    qDebug()<<textbuffer_index;
+    refresh_codepad();
+}
+
+void MainWindow::on_pushButton_6_clicked()  //next line
+{
+    if(if_loadfile)
+    {
+        if(textbuffer_index<textbuffer_size-1)
+        {
+            textbuffer_index++;
+        }
+        ui->lineEdit_3->setText(textbuffer[textbuffer_index]);
+    }
+    qDebug()<<textbuffer_index;
+    refresh_codepad();
+}
+
+void MainWindow::refresh_codepad()
+{
+    ui->textBrowser_2->setCurrentFont(QFont("Timers",14,QFont::Normal));
+    ui->textBrowser_2->clear();
+    for(int i = 0; i<textbuffer_size;i++)
+    {
+        if(i == textbuffer_index)
+        {
+
+            ui->textBrowser_2->setCurrentFont(QFont("Timers",14,QFont::Bold));
+            ui->textBrowser_2->setPalette(palette1);
+            ui->textBrowser_2->append(textbuffer[i]);
+            ui->textBrowser_2->setCurrentFont(QFont("Timers",14,QFont::Normal));
+
+            ui->textBrowser_2->setPalette(palette2);
+
+        }
+        else
+            ui->textBrowser_2->append(textbuffer[i]);
+    }
+}