C++ (Cpp) MainView::size示例

QSize TabBar::tabSizeHint(int index) const
{
    MainView *view = qobject_cast<MainView *>(parent());

    int buttonSize = view->addTabButton()->size().width();
    int tabBarWidth = view->size().width() - buttonSize;
    int baseWidth =  view->sizeHint().width() / BASE_WIDTH_DIVISOR;
    int minWidth =  view->sizeHint().width() / MIN_WIDTH_DIVISOR;

    int w;
    if (baseWidth*count() < tabBarWidth)
    {
        w = baseWidth;
    }
    else
    {
        if (count() > 0 && tabBarWidth / count() > minWidth)
        {
            w = tabBarWidth / count();
        }
        else
        {
            w = minWidth;
        }
    }

    int h = KTabBar::tabSizeHint(index).height();

    QSize ts = QSize(w, h);
    return ts;
}

示例#2

显示文件

文件： tabbar.cpp 项目： Arakmar/rekonq

void TabBar::showTabPreview()
{
    if (m_isFirstTimeOnTab)
        m_isFirstTimeOnTab = false;

    //delete previous tab preview
    delete m_previewPopup.data();
    m_previewPopup.clear();

    MainView *mv = qobject_cast<MainView *>(parent());

    WebTab *indexedTab = mv->webTab(m_currentTabPreviewIndex);
    WebTab *currentTab = mv->webTab(currentIndex());

    // check if view && currentView exist before using them :)
    if (!currentTab || !indexedTab)
        return;

    // no previews during load
    if (indexedTab->isPageLoading())
        return;

    // Make sure the hovered webtab match the current size
    // Only the active one is updated by window resize events
    indexedTab->resize(currentTab->size());

    m_previewPopup = new TabPreviewPopup(indexedTab , this);

    int tabWidth = tabSizeHint(m_currentTabPreviewIndex).width();
    int tabBarWidth = mv->size().width();
    int leftIndex = tabRect(m_currentTabPreviewIndex).x() + (tabRect(m_currentTabPreviewIndex).width() - tabWidth) / 2;
    int popupWidth = m_previewPopup.data()->thumbnailSize().width();

    // Center the popup if the tab width is bigger or smaller
    leftIndex += (tabWidth - popupWidth) / 2;

    if (leftIndex < 0)
    {
        leftIndex = 0;
    }
    else if (leftIndex + tabWidth > tabBarWidth)
    {
        leftIndex = tabBarWidth - tabWidth;
    }

    QPoint pos(leftIndex, tabRect(m_currentTabPreviewIndex).y() + tabRect(m_currentTabPreviewIndex).height());
    m_previewPopup.data()->show(mapToGlobal(pos));
}