Method sizeHint

src/plugins/core/notify/gui/itemdelegate.cpp:80–115

}

QSize ItemDelegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
{
    int height = kNotificationSpacing * 2;
    QString message = index.data(Qt::DisplayRole).toString();
    QFontMetrics fm(option.font);
    int fontLeading = fm.leading();
    // Layout the message
    int textWidth = closeButtonRect(option.rect).left()
            - view->iconSize().width() - kNotificationSpacing;

    message.replace(QLatin1Char('\n'), QChar::LineSeparator);
    QTextLayout tl(message);
    tl.beginLayout();
    while (true) {
        QTextLine line = tl.createLine();
        if (!line.isValid())
            break;
        line.setLineWidth(textWidth);
        height += fontLeading;
        line.setPosition(QPoint(0, height));
        height += static_cast<int>(line.height());
    }
    tl.endLayout();

    QString source = index.data(kSourceRole).toString();
    if (!source.isEmpty()) {
        height += kNotificationSourceHeight + kNotificationSpacing;
    }

    auto actList = index.data(kActionsRole).toStringList();
    if (!actList.isEmpty()) {
        height += kNotificationActionHeight;
    }

    return { option.rect.width(), height };
}

void ItemDelegate::drawBackground(QPainter *painter, const QStyleOptionViewItem &option) const
{