C++ QTabBar::setTabText方法代码示例

void NativeTabItem::SetInfo(const PartInfo& info)
{
  QTabBar* widget = parent->GetTabFolder();

  int index = parent->IndexOf(this);
  if (widget->tabText(index) != info.name)
  {
    widget->setTabText(index, info.name);
  }

  if (widget->tabToolTip(index) != info.toolTip)
  {
    widget->setTabToolTip(index, info.toolTip);
  }

  if (widget->tabIcon(index).cacheKey() != info.image.cacheKey())
  {
    widget->setTabIcon(index, info.image);
  }
}

void AcceleratorManagerPrivate::calculateAccelerators(Item *item, QString &used)
{
    if (!item->m_children)
        return;

    // collect the contents
    AccelStringList contents;
    for (Item *it: *item->m_children) {
        contents << it->m_content;
    }

    // find the right accelerators
    AccelManagerAlgorithm::findAccelerators(contents, used);

    // write them back into the widgets
    int cnt = -1;
    for (Item *it: *item->m_children) {
        cnt++;

        QDockWidget *dock = qobject_cast<QDockWidget*>(it->m_widget);
        if (dock) {
            if (checkChange(contents[cnt]))
                dock->setWindowTitle(contents[cnt].accelerated());
            continue;
        }
        QTabBar *tabBar = qobject_cast<QTabBar*>(it->m_widget);
        if (tabBar) {
            if (checkChange(contents[cnt]))
                tabBar->setTabText(it->m_index, contents[cnt].accelerated());
            continue;
        }
        QMenuBar *menuBar = qobject_cast<QMenuBar*>(it->m_widget);
        if (menuBar) {
            if (it->m_index >= 0) {
                QAction *maction = menuBar->actions()[it->m_index];
                if (maction) {
                    checkChange(contents[cnt]);
                    maction->setText(contents[cnt].accelerated());
                }
                continue;
            }
        }

        // we possibly reserved an accel, but we won't set it as it looks silly
        QGroupBox *groupBox = qobject_cast<QGroupBox*>(it->m_widget);
        if (groupBox && !groupBox->isCheckable())
            continue;

        int tprop = it->m_widget->metaObject()->indexOfProperty("text");
        if (tprop != -1)  {
            if (checkChange(contents[cnt]))
                it->m_widget->setProperty("text", contents[cnt].accelerated());
        } else {
            tprop = it->m_widget->metaObject()->indexOfProperty("title");
            if (tprop != -1 && checkChange(contents[cnt]))
                it->m_widget->setProperty("title", contents[cnt].accelerated());
        }
    }

    // calculate the accelerators for the children
    for (Item *it: *item->m_children) {
        if (it->m_widget && it->m_widget->isVisibleTo( item->m_widget ) )
            calculateAccelerators(it, used);
    }
}

//.........这里部分代码省略.........
    });

    QLayout *layout;
    switch (tabBar.shape()) {
    case QTabBar::RoundedEast:
    case QTabBar::TriangularEast:
        tabBar.setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Expanding);
        layout = new QHBoxLayout(&widget);
        layout->addWidget(&stackedWidget);
        layout->addWidget(&tabBar);
        break;
    case QTabBar::RoundedWest:
    case QTabBar::TriangularWest:
        tabBar.setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Expanding);
        layout = new QHBoxLayout(&widget);
        layout->addWidget(&tabBar);
        layout->addWidget(&stackedWidget);
        break;
    case QTabBar::RoundedNorth:
    case QTabBar::TriangularNorth:
        tabBar.setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Minimum);
        layout = new QVBoxLayout(&widget);
        layout->addWidget(&tabBar);
        layout->addWidget(&stackedWidget);
        break;
    case QTabBar::RoundedSouth:
    case QTabBar::TriangularSouth:
        tabBar.setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Minimum);
        layout = new QVBoxLayout(&widget);
        layout->addWidget(&stackedWidget);
        layout->addWidget(&tabBar);
        break;
    }

    TabBarForm form;
    layout->addWidget(&form);
    layout->setAlignment(&form, Qt::AlignHCenter);

    form.ui->documentModeButton->setChecked(tabBar.documentMode());
    QObject::connect(form.ui->documentModeButton, &QCheckBox::toggled, [&] {
        tabBar.setDocumentMode(form.ui->documentModeButton->isChecked());
        // QMacStyle (and maybe other styles) requires a re-polish to get the right font
        QApplication::sendEvent(&tabBar, new QEvent(QEvent::ThemeChange));
    });

    form.ui->movableTabsButton->setChecked(tabBar.isMovable());
    QObject::connect(form.ui->movableTabsButton, &QCheckBox::toggled, [&] {
        tabBar.setMovable(form.ui->movableTabsButton->isChecked());
        tabBar.update();
    });

    form.ui->closableTabsButton->setChecked(tabBar.tabsClosable());
    QObject::connect(form.ui->closableTabsButton, &QCheckBox::toggled, [&] {
        tabBar.setTabsClosable(form.ui->closableTabsButton->isChecked());
        tabBar.update();
    });

    form.ui->expandingTabsButton->setChecked(tabBar.expanding());
    QObject::connect(form.ui->expandingTabsButton, &QCheckBox::toggled, [&] {
        tabBar.setExpanding(form.ui->expandingTabsButton->isChecked());
        tabBar.update();
    });

    form.ui->displayIconButton->setChecked(!tabBar.tabIcon(0).isNull());
    QObject::connect(form.ui->displayIconButton, &QCheckBox::toggled, [&] {
        const auto icon = form.ui->displayIconButton->isChecked() ?
                          tabBar.style()->standardIcon(QStyle::SP_ComputerIcon) : QIcon();
        for (int i = 0; i < tabBar.count(); i++)
            tabBar.setTabIcon(i, icon);
    });

    form.ui->longLabelButton->setChecked(false);
    QObject::connect(form.ui->longLabelButton, &QCheckBox::toggled, [&] {
        const auto &label = form.ui->longLabelButton->isChecked() ? longLabel : shortLabel;
        for (int i = 0; i < tabBar.count(); i++)
            tabBar.setTabText(i, label.arg(i));
    });

    QObject::connect(form.ui->shapeComboBox, QOverload<int>::of(&QComboBox::currentIndexChanged), [&](int index) {
        Q_UNUSED(index);
        // TODO
    });

    if (proxyStyle->alignment == Qt::AlignLeft)
        form.ui->leftAlignedButton->setChecked(true);
    else if (proxyStyle->alignment == Qt::AlignRight)
        form.ui->rightAlignedButton->setChecked(true);
    else
        form.ui->centeredButton->setChecked(true);
    QObject::connect(form.ui->textAlignmentGroup, QOverload<QAbstractButton *>::of(&QButtonGroup::buttonClicked), [&](QAbstractButton *b) {
        proxyStyle->alignment = b == form.ui->leftAlignedButton ? Qt::AlignLeft :
                                b == form.ui->rightAlignedButton ? Qt::AlignRight : Qt::AlignCenter;
        QApplication::sendEvent(&tabBar, new QEvent(QEvent::StyleChange));
    });

    layout->setMargin(12);
    widget.show();

    return app.exec();
}