Autoresizing qtabwidget

[theodr]

hi,

i would like to ask how it is possible to autoresize a qtabwidet in order to gain the empty space that it is created within each different tab page. I found this "example":http://doc.qt.digia.com/qq/qq06-qwidgetstack.html and i tried to ported to my code:

@void MainWindow::currentChanged(int index)
{
const QSizePolicy ignored(QSizePolicy::Ignored, QSizePolicy::Ignored);
const QSizePolicy preferred(QSizePolicy::Preferred, QSizePolicy::Preferred);

if (index == ui->tabWidget->indexOf(ui->tab)) {
    ui->tab->setSizePolicy(preferred);
    ui->tab_2->setSizePolicy(ignored);
    ui->tab_3->setSizePolicy(ignored);
} else if(index == ui->tabWidget->indexOf(ui->tab_2)){
    ui->tab->setSizePolicy(ignored);
    ui->tab_2->setSizePolicy(preferred);
    ui->tab_3->setSizePolicy(ignored);
} else if(index == ui->tabWidget->indexOf(ui->tab_3)){
    ui->tab->setSizePolicy(ignored);
    ui->tab_2->setSizePolicy(ignored);
    ui->tab_3->setSizePolicy(preferred);
}

ui->dockWidget->layout()->activate();

// ui->tabWidget->setFixedSize(minimumSizeHint());
}@

This works fine for the vertical space but not for the horizontal one. How i can make it work for the horizontal space as well?