pobleme de fonction

#include "FenCodeGenere.h"

FenCodeGenere::FenCodeGenere(QString &code, QWidget *parent = 0) : QDialog(parent)
{
    codeGenere = new QTextEdit();
    codeGenere->setPlainText(code);
    codeGenere->setReadOnly(true);
    codeGenere->setFont(QFont("Courier", 16, QFont::Bold));
    codeGenere->setLineWrapMode(QTextEdit::NoWrap);


    fermer = new QPushButton("Fermer");
	fermer->setFont(QFont("digital", 12, QFont::Bold));

    QVBoxLayout *layoutPrincipal = new QVBoxLayout;
    layoutPrincipal->addWidget(codeGenere);
    layoutPrincipal->addWidget(fermer);

    resize(700, 450);
    setLayout(layoutPrincipal);

    connect(fermer, SIGNAL(clicked()), this, SLOT(accept()));
}