QTabWidget size depending on current Tab

Limer

I have the same problem with the https://stackoverflow.com/questions/29128936/qtabwidget-size-depending-on-current-tab, so I tried Nejat's answer,

PreferenceWidget::PreferenceWidget(QWidget* parent) : QWidget(parent)
{
    setWindowTitle(tr("Preference"));
    setFixedWidth(600);

    m_tabWidget = new QTabWidget(this);
    connect(m_tabWidget, &QTabWidget::currentChanged, this, &PreferenceWidget::updateSizes);
    m_tabWidget->addTab(createGeneralWidget(), tr("General"));
    m_tabWidget->addTab(createBehaviorWidget(), tr("Behavior"));

    QHBoxLayout* hLayout = new QHBoxLayout(this);
    hLayout->addWidget(m_tabWidget);
}

void PreferenceWidget::updateSizes(int index)
{
    for (int i = 0; i < m_tabWidget->count(); ++i)
    {
        if (i != index)
        {
            m_tabWidget->widget(i)->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
        }
    }

    m_tabWidget->widget(index)->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
    m_tabWidget->widget(index)->resize(m_tabWidget->widget(index)->minimumSizeHint());
    m_tabWidget->widget(index)->adjustSize();
    resize(minimumSizeHint());
    adjustSize();
}

But it didn't work. What's wrong?

SGaist

Hi,

What version of Qt are you using ?
On what OS ?
Can you provide the full class so people can test it ?