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#include "mainwindow.h"#include "ui_mainwindow.h"#include "QSerialPort"#include "QSerialPortInfo"#include "QMessageBox"#include "QDateTime"MainWindow::MainWindow(QWidget *parent)    : QMainWindow(parent)    , ui(new Ui::MainWindow){    ui->setupUi(this);    //设置左右比例为2：8//    ui->splitter_left_right->setStretchFactor(0,2);//    ui->splitter_left_right->setStretchFactor(1,8);    //设置上下比例为7：3//    ui->splitter_top_bot->setStretchFactor(0, 7);//    ui->splitter_top_bot->setStretchFactor(1, 3);    scanSerialPort();    baudInit();    databitInit();    stopbitInit();    parityInit();    serialPort = new QSerialPort(this);    ui->checkBox_autoline->setChecked(true);    ui->checkBox_timestamp_send->setChecked(true);    portOpened = false;    ui->pushButton_send->setEnabled(false);    connect(serialPort, SIGNAL(readyRead()), this, SLOT(serialPortReadyRead()));}int MainWindow::sendBytes = 0;int MainWindow::receBytes = 0;MainWindow::~MainWindow(){    delete ui;}//获取可用的串口void MainWindow::scanSerialPort(){    ui->comboBox_port->clear();    //for循环，检测系统可用的串口号    foreach (const QSerialPortInfo &info, QSerialPortInfo::availablePorts()) {        ui->comboBox_port->addItem(info.portName());    }}//设置波特率void MainWindow::baudInit(){    QList  list;    list<<"1200"<<"2400"<<"4800"<<"9600"<<"19200"<<"38400"<<"57600"<<"115200";    for (int i = 0; i < 8; i++) {        ui->comboBox_baud->addItem(list[i]);    }    ui->comboBox_baud->setCurrentIndex(3);}//设置数据位void MainWindow::databitInit(){    QList  list;    list<<"5"<<"6"<<"7"<<"8";    for (int i = 0; i < 4; i++) {        ui->comboBox_databit->addItem(list[i]);    }    ui->comboBox_databit->setCurrentIndex(3);}//设置停止位void MainWindow::stopbitInit(){    QList  list;    list<<"1"<<"2";    for (int i = 0; i < 2; i++) {        ui->comboBox_stopbit->addItem(list[i]);    }    ui->comboBox_stopbit->setCurrentIndex(0);}//设置校验位void MainWindow::parityInit(){    QList  list;    list<<"None"<<"Even"<<"Odd"<<"Space"<<"Mark";    for (int i = 0; i < 5; i++) {        ui->comboBox_parity->addItem(list[i]);    }    ui->comboBox_parity->setCurrentIndex(0);}//设置串口参数、打开串口void MainWindow::on_pushButton_open_clicked(){    //在串口未打开时，设置数据位、波特率、停止位、校验位    if (portOpened == false) {        serialPort->setPortName(ui->comboBox_port->currentText());        //设置串口名        serialPort->setBaudRate(ui->comboBox_baud->currentText().toInt());        //设置波特率        switch ( ui->comboBox_baud->currentIndex()) {        case 0:            serialPort->setBaudRate(QSerialPort::Baud1200);            break;        case 1:            serialPort->setBaudRate(QSerialPort::Baud2400);            break;        case 2:            serialPort->setBaudRate(QSerialPort::Baud4800);            break;        case 3:            serialPort->setBaudRate(QSerialPort::Baud9600);            break;        case 4:            serialPort->setBaudRate(QSerialPort::Baud19200);            break;        case 5:            serialPort->setBaudRate(QSerialPort::Baud38400);            break;        case 6:            serialPort->setBaudRate(QSerialPort::Baud57600);            break;        case 7:            serialPort->setBaudRate(QSerialPort::Baud115200);            break;        default:            break;        }        //设置数据位        switch (ui->comboBox_databit->currentText().toInt()) {        case 5:            serialPort->setDataBits(QSerialPort::Data5);            break;        case 6:            serialPort->setDataBits(QSerialPort::Data6);            break;        case 7:            serialPort->setDataBits(QSerialPort::Data7);            break;        case 8:            serialPort->setDataBits(QSerialPort::Data8);            break;        default:            break;        }        //设置停止位        switch (ui->comboBox_stopbit->currentText().toInt()) {        case 1:            serialPort->setStopBits(QSerialPort::OneStop);            break;        case 2:            serialPort->setStopBits(QSerialPort::TwoStop);            break;        default:            break;        }        switch (ui->comboBox_parity->currentIndex()) {        case 0:            serialPort->setParity(QSerialPort::NoParity);            break;        case 1:            serialPort->setParity(QSerialPort::EvenParity);            break;        case 2:            serialPort->setParity(QSerialPort::OddParity);            break;        case 3:            serialPort->setParity(QSerialPort::SpaceParity);            break;        case 4:            serialPort->setParity(QSerialPort::MarkParity);            break;        default:            break;        }        if (!serialPort->open(QIODevice::ReadWrite)) {            QMessageBox::warning(NULL, "错误", "串口打开失败");        } else {            portOpened = true;            ui->comboBox_baud->setEnabled(false);            ui->comboBox_databit->setEnabled(false);            ui->comboBox_parity->setEnabled(false);            ui->comboBox_port->setEnabled(false);            ui->comboBox_stopbit->setEnabled(false);            ui->pushButton_open->setText("关闭");            ui->pushButton_send->setEnabled(true);        }    } else {        // close serial port        serialPort->close();        portOpened = false;        ui->comboBox_baud->setEnabled(true);        ui->comboBox_databit->setEnabled(true);        ui->comboBox_parity->setEnabled(true);        ui->comboBox_port->setEnabled(true);        ui->comboBox_stopbit->setEnabled(true);        ui->pushButton_open->setText("打开");        ui->pushButton_send->setEnabled(false);    }}//清空接收区数据void MainWindow::on_pushButton_clean_recv_clicked(){    ui->textBrowser->clear();}//清空发送区数据void MainWindow::on_pushButton_clean_send_clicked(){    ui->textEdit->clear();}//发送void MainWindow::on_pushButton_send_clicked(){//原先的写法//    QByteArray data = ui->textEdit->toPlainText().toUtf8();//    serialPort->write(data);//    serialPort->waitForBytesWritten(data.size());//    //按照字节去写      //修改后的写法     QString str = ui->textEdit->toPlainText().toUtf8();     if (!str.isEmpty())     {         auto isHexSend = ui->checkBox_hex_send->isChecked();         int len = str.length();        if (len%2 == 1)        {            str = str.insert(len-1,"0");        }         QByteArray sendata;        if (isHexSend)        {             StringToHex(str, sendata);             serialPort->write(sendata);            //写数据             //如果写的数据长度大小小于 0            if (serialPort->write(sendata) < 0)             {                 QMessageBox::warning(this, tr("error1"), serialPort->errorString());             }        }        else        {            if (serialPort->write(ui->textEdit->toPlainText().toLocal8Bit())<0)            {                QMessageBox::critical(this, tr("error2"),serialPort->errorString());            }        }     }}void MainWindow::StringToHex(QString str, QByteArray &senddata){    int hexdata;    int lowhexdata;    int hexdatalen = 0;    int len = str.length();    senddata.resize(len/2);    char lstr;    char hstr;    for (int i = 0; i=len)            break;        lstr = str[i].toLatin1();        hexdata = convertHexChart(hstr);        lowhexdata = convertHexChart(lstr);        if ((hexdata == 16) || (lowhexdata == 16))            break;        else            hexdata = hexdata*16 + lowhexdata;        i++;        senddata[hexdata] = (char)hexdata;        hexdatalen++;    }    senddata.resize(hexdatalen);}char MainWindow::convertHexChart(char ch){    if ((ch >"0") && (ch < "9"))        return ch-0x30;    else if ((ch >="A") && ( ch <= "F"))        return ch - "A" +10;    else if ((ch >= "a") && (ch <= "f"))        return ch-"a" +10;    else        return ch-ch;}//准备去读void MainWindow::serialPortReadyRead(){    QByteArray data;    if (serialPort)    {        if (!data.isEmpty())        {            if (ui->checkBox_ascll_2->isChecked())            {               // ui->checkBox_hex_rece->isCheckable();                QByteArray buf = serialPort->readAll();                ui->textBrowser->append(buf);                receBytes += data.size();            }            else            {                QByteArray buf = serialPort->readAll().toHex().toUpper();                QByteArray newBA;                for (int i = 0; i< buf.length()/2 ; i++)                {                    newBA.append(buf.mid(i*2,2));                    newBA.append("");                }                ui->textBrowser->append(buf);                receBytes += data.size();            }        }        QString redata = QString("接收:%1").arg(QString::number(receBytes));        ui->sendlabel->setText(redata);        //显示接收信息的大小    }    QString str;    if (ui->checkBox_timestamp_send->isChecked()) {        QDateTime cur = QDateTime::currentDateTime();        //获取当前设备时间        str = cur.toString("[yy-MM-dd hh:mm:ss] ") + QString(data);    } else {        str = QString(data);    }    QString myStrTemp = QString::fromLocal8Bit(data);    if (ui->checkBox_autoline->isChecked())    {        QString str1 = ui->textBrowser->toPlainText();        str1 += myStrTemp;        //ui->textBrowser->clear();        ui->textBrowser->append(str);    }    else        ui->textBrowser->insertPlainText(str);}