Someone

#include <QApplication>
#include <QPushButton>
#include <QLineEdit>
#include <QHBoxLayout>

int main(int argc, char **argv)
{
    QApplication app(argc, argv);

	QWidget *window = new QWidget;
	window->setWindowTitle("Test");

    QPushButton *quit = new QPushButton("Quitter");
    quit->setFont(QFont("Arial", 18, QFont::Bold));

	QPushButton *clean = new QPushButton("Effacer");
    clean->setFont(QFont("Arial", 18, QFont::Bold));

    QLineEdit *line = new QLineEdit;


	QLineEdit *lineRo = new QLineEdit;
	lineRo->setReadOnly(true);


	// FIXME:  Broken for the moment
	//QObject::connect( line, SIGNAL(textChanged ( const QString & text )),
	//					lineRo, SLOT(textEdited ( setText ( const QString & ) )));

	QObject::connect( clean, SIGNAL(clicked()), line, SLOT(clear ()));

	QObject::connect( quit, SIGNAL(clicked()), &app, SLOT(quit()));

	QHBoxLayout *topLayout = new QHBoxLayout;
	topLayout->addWidget(line);
    topLayout->addWidget(lineRo);


	QHBoxLayout *bottomLayout = new QHBoxLayout;
	bottomLayout->addWidget(clean);
	bottomLayout->addWidget(quit);


    QHBoxLayout *mainLayout = new QHBoxLayout;
	mainLayout->addWidget(topLayout);
    mainLayout->addWidget(bottomLayout);

    window->setLayout(mainLayout);
	window->show();
    return app.exec();
}