qt 二进制文件转换工具

qt二进制文件转化工具,注意点:写文件时候,对于非可显示字符,在qt5.9.3版本测试下,需要一个一个字符的写入,不然程序崩溃.

#include "mainwindow.h"
#include "ui_mainwindow.h"

#define VERSION "( V1.0.0)"

#include <QFile>
#include <QFileInfo>
#include <QFileDialog>
#include <QDateTime>

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    setWindowTitle(QStringLiteral("二进制文件查看转换工具")+VERSION);

    connect(ui->btn_readHex,&QPushButton::clicked,this,[=](){
        QString fileName = QFileDialog::getOpenFileName(this,QStringLiteral("数据读取"),".",tr("Exel file(*.txt *.hex *.bin)"));
        if(fileName.length()<=0)  { return ; }
        ui->data->clear();

        QFile file(fileName);
        bool isOK = file.open(QIODevice::ReadOnly);
        if(isOK == true){
            QByteArray array =  file.readAll();
            QString strres = "";
            for(int i=0;i<array.length();i++){
                strres+=QString("00"+QString::number(array.at(i),16)).right(2);
            }
            ui->data->appendPlainText(strres);
        }
        file.close();
    });
    connect(ui->btn_readTXT,&QPushButton::clicked,this,[=](){
        QString fileName = QFileDialog::getOpenFileName(this,QStringLiteral("数据读取"),".",tr("Exel file(*.txt *.hex *.bin)"));
        if(fileName.length()<=0)  { return ; }
        ui->data->clear();

        QFile file(fileName);
        bool isOK = file.open(QIODevice::ReadOnly);
        if(isOK == true){
            QByteArray array =  file.readAll();
            ui->data->appendPlainText(QString(array));
        }
        file.close();
    });


    connect(ui->btn_saveTXT,&QPushButton::clicked,this,[=](){
        QString name =QDateTime::currentDateTime().toString("yyyy_MM_dd__HH_mm_ss")+".txt";
        QString fileName = QFileDialog::getSaveFileName(this,QStringLiteral("数据保存"),name,tr("Exel file(*.txt *.hex *.bin)"));
        if(fileName.length()<=0)  { return ; }
        //创建文件对象
        QFile file;
        //关联文件名字
        file.setFileName(fileName);
        //打开文件,只写方式
        if (!file.open(QIODevice::WriteOnly | QIODevice::Text | QFile::Truncate)){ }//清空
        file.close();
        bool isOK = file.open(QIODevice::WriteOnly);
        if (isOK == true){
            QString str = ui->data->toPlainText();
            file.write(str.toStdString().data());
        }
        file.close();
    });
}

MainWindow::~MainWindow()
{
    delete ui;
}

void MainWindow::on_btn_saveHex_clicked()
{
    QString name =QDateTime::currentDateTime().toString("yyyy_MM_dd__HH_mm_ss")+".hex";
    QString fileName = QFileDialog::getSaveFileName(this,QStringLiteral("数据保存"),name,tr("Exel file(*.txt *.hex *.bin)"));
    if(fileName.length()<=0)  { return ; }
    //创建文件对象
    QFile file;
    //关联文件名字
    file.setFileName(fileName);
    //打开文件,只写方式
    if (!file.open(QIODevice::WriteOnly | QIODevice::Text | QFile::Truncate)){ }//清空
    file.close();
    bool isOK = file.open(QIODevice::Append);
    QString str = ui->data->toPlainText();
    for(int i=0;i<str.length()/2;i++){
        unsigned char __d = str.mid(2*i,2).toInt(nullptr,16);
        file.write((char*)&__d,1);
    }

    file.close();
}

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注意,在lambda表达式中,debug断点临时变量不会显示出来,得放置在一个函数中,才会正常显示

 

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