C++ (Cpp) BrowserNode::get_state示例

void BrowserView::update_it()
{
    if (lbl == 0)
        lbl = new QLabel(parentWidget());

    int nold = 0;
    int ndel = 0;

    Q3DictIterator<BrowserNode> itd(nodes);

    for (; itd.current(); ++itd) {
        BrowserNode * bn = itd.current();

        switch (bn->get_state()) {
        case Old:
            nold += 1;
            break;

        case Deleted:
            ndel += 1;
            break;

        default:
            break;
        }
    }

    QString s;

    if (nold != 0) {
        need_update = TRUE;

        s = QString::number(nold) + " need update";

        if (ndel != 0)
            s += ", " + QString::number(ndel) + " deleted";

        if (cant_update)
            s += ", RO !";

        lbl->setText(s);
    }
    else
        lbl->setText("Up to date");

    lbl->show();

    triggerUpdate();
}