QT项目之文件加密工具

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main.cpp

#include "widget.h"

#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Widget w;
    w.show();
    return a.exec();
}

widgei.h

#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>

QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACE

class Widget : public QWidget
{
    Q_OBJECT

public:
    Widget(QWidget *parent = nullptr);
    ~Widget();

private slots:


    void on_encode_clicked();

    void on_unencode_clicked();

    void on_view_clicked();

private:
    Ui::Widget *ui;
    QString filename = "0";
};
#endif // WIDGET_H

widget.cpp
 

#include "widget.h"
#include "./ui_widget.h"
#include<QFileDialog>
#include<QMessageBox>

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
    this->setWindowTitle("文件加密工具");
    this->setWindowIcon(QIcon(":/iconfont.png"));
}

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




void Widget::on_encode_clicked()
{
    if(filenamepare("0") == 0)
        QMessageBox::information(this,"","未选择文件!");
    else
    {
         QFile f(filename);
         f.open(QIODevice::ReadWrite);
         QByteArray buf = f.readAll();
         ui->progressBar->setRange(0,buf.length() - 1);
         for(int i = 0; i < buf.length();i++)
         {
             buf[i] = ~buf[i];
             ui->progressBar->setValue(i);

         }
         f.seek(0);
         f.write(buf);
         f.close();
    }
}


void Widget::on_unencode_clicked()
{
    if(filenamepare("0") == 0)
        QMessageBox::information(this,"","未选择文件!");
    else
    {
         QFile f(filename);
         f.open(QIODevice::ReadWrite);
         QByteArray buf = f.readAll();
         ui->progressBar->setRange(0,buf.length() - 1);
         for(int i = 0; i < buf.length();i++)
         {
             buf[i] = ~buf[i];
             ui->progressBar->setValue(i);

         }
         f.seek(0);
         f.write(buf);
         f.close();
    }
}


void Widget::on_view_clicked()
{
    filename = QFileDialog::getOpenFileName();
    ui->lineEdit->setText(filename);
}

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本文标签： 文件加密工具项目QT