Login Password project

(Gui Programming)

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

CONFIG += c++11

# You can make your code fail to compile if it uses deprecated APIs.

# In order to do so, uncomment the following line.

#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000

# disables all the APIs deprecated before Qt 6.0.0

SOURCES += \

    main.cpp \

    secDialog.cpp \

    widget.cpp

HEADERS += \

    secDialog.h \

    widget.h

# Default rules for deployment.

qnx: target.path = /tmp/$${TARGET}/bin

else: unix:!android: target.path = /opt/$${TARGET}/bin

!isEmpty(target.path): INSTALLS += target

#ifndef WIDGET_H

#define WIDGET_H

#include <QWidget>

#include <QLineEdit>

#include <QPushButton>

#include"secDialog.h"

class Widget : public QWidget

    Q_OBJECT  //macros object

public:

    Widget(QWidget * parent = 0);

private slots:

    void onPushButtonLoginClicked();

    void onQuitMessage();

private:

    QLineEdit *username;

    QLineEdit *password;

    QPushButton *login;

    QPushButton *cancel;

};

#endif // WIDGET_H

#ifndef SECDIALOG_H

#define SECDIALOG_H

#include <QDialog>

#include <QTextEdit>

#include <QLabel>

class secDialog : public QDialog

    Q_OBJECT

public:

     secDialog();

private:

    QLabel *text;

};

#endif // SECDIALOG_H

#include "widget.h"

#include <QApplication>

int main(int argc, char *argv[])

    QApplication a(argc, argv);

    Widget w;

    w.show();

    w.setWindowTitle("Login");

    return a.exec();

#include "widget.h"

#include <QVBoxLayout>

#include <QMessageBox>

Widget::Widget(QWidget * parent) : QWidget(parent)

    username = new QLineEdit();

    username->setStyleSheet("color : rgb(140, 0, 140, 250)}");

    username -> setPlaceholderText("Username");

    password = new QLineEdit();

    password->setEchoMode(QLineEdit::Password);

    password->setStyleSheet("color : rgb(150, 0, 150, 250)}");

    password -> setPlaceholderText("Password");

    login = new QPushButton("Login");

    cancel = new QPushButton ("Close");

    QVBoxLayout * lyt = new QVBoxLayout(this);

    lyt->addWidget(username);

    lyt->addWidget(password);

    lyt->addWidget(login);

    lyt->addWidget(cancel);

    setLayout(lyt);

    connect(login, SIGNAL(clicked()), this,

 SLOT(onPushButtonLoginClicked()));

    connect(cancel, SIGNAL(clicked()), this, SLOT(onQuitMessage()));

    setFixedWidth(225);

    setFixedHeight(150);

void Widget::onPushButtonLoginClicked()

    QString userText = username->text();

    QString passwordText = password ->text();

    if(userText == "gui" && passwordText == "programming")

                close();  //username, password window is closing

                secDialog secdialog;

                secdialog.setModal(true);   //main page

                secdialog.exec();

    else

     QMessageBox::warning(this,"Login",

                          "Username and password is not correct");

void Widget::onQuitMessage()

    int o = QMessageBox::question(this, "Exit", "Are u sure to exit?",

                                  QMessageBox::Yes, QMessageBox::No);

    if (o == QMessageBox::Yes)

      this->close();

#include "secDialog.h"

#include <QVBoxLayout>

secDialog::secDialog()

    setFixedWidth(225);   //laynutyuny fix

    setFixedHeight(150);

    text = new QLabel("This is your page");

    text->setStyleSheet("color : rgb(238, 130, 238, 255)}");

    QVBoxLayout *vlyt = new QVBoxLayout();

    vlyt->addWidget(text);

    setLayout(vlyt);

Result: