signup.cpp

#include "signup.h"
#include "ui_signup.h"
#include "QFile"
#include "QTextStream"
#include "mainwindow.h"
#include<QDebug>
#include<iostream>
#include<cstdio>
#include<cstring>
#include<fstream>
#include<QFile>
#include<QTextStream>
#include<QDebug>
#include<QMessageBox>
#include "database.h"

signup::signup(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::signup)
{
    ui->setupUi(this);
    this->setWindowTitle("SIGNUP");

    QPixmap pix("D:\\qt\\irctc3\\logo.jpg");
    ui->label_4->setPixmap(pix);
    QString filename ="D:\\qt\\irctc3\\user.txt";
    QFile file(filename);
    if(!file.exists())
    {
       qDebug() << filename<<"not exits...";
    }
    else
    {
        QString line;
        if(file.open(QIODevice::ReadOnly|QIODevice::Text))
        {
            QTextStream stream(&file);
            while(!stream.atEnd())
            {
                line=stream.readLine();
                QString name = line.split(" ").at(0);
                user[name]="1";
            }
        }
      }
}

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

void signup :: open_login()
{
    log=new login(this);
    log->show();
}

QString signup:: encrypted(QString pass)
{
    int n=pass.length();
    int i;
    std::string s=pass.toUtf8().constData();
    for(i=0;i<n;i++)
    {
        if(s[i]=='y')
            s[i]='a';
        if(s[i]=='Y')
            s[i]='A';
        if(s[i]=='z')
            s[i]='b';
        if(s[i]=='Z')
            s[i]='B';
        else
        s[i]=s[i]+2;
    }
    pass=QString ::fromStdString(s);
    return pass;
}

void signup::on_buttonBox_accepted()
{
    QString name,pass,mobile;
    name=ui->lineEdit->text();
    pass=ui->lineEdit_2->text();
    mobile=ui->lineEdit_3->text().toInt();
    if(name=="" || pass=="")
    {
         QMessageBox::critical(this,tr("error"),tr("fields are empty"));
    }
    else
    {
        if(user[name].compare("1")==0)
        {
            QMessageBox::critical(this,tr("error"),tr("Sorry, that username is already taken!"));
            ui->lineEdit->clear();
            ui->lineEdit_2->clear();
            ui->lineEdit_3->clear();
        }
        else
        {
            pass=encrypted(pass);
           QString filename="D:\\qt\\irctc3\\user.txt";
           QFile file(filename);
           if(!file.exists()){
               qDebug() << "NO exist "<<filename;
           }else{
               qDebug() << filename<<" exits...";
           }
           QTextStream out(&file);
           file.open(QFile::ReadWrite | QFile::Append);
           out<<"\n"<<name<<" ";
           out<<pass<<" ";
           file.close();
           this->hide();
           open_login();
        }

    }
}

void signup::on_buttonBox_rejected()
{
    ui->lineEdit->clear();
    ui->lineEdit_2->clear();
    ui->lineEdit_3->clear();
}

void signup::on_pushButton_clicked()
{
    exit(0);
}