Qt QTabWidget详解

1.常用API

//添加
int addTab(QWidget *page, const QString &label)

//设置tab位置
void setTabPosition(QTabWidget::TabPosition)

//设置tab的形状
void setTabShape(QTabWidget::TabShape s)

2.例子

这里简单的添加两个tab

    m_tabWidget = new QTabWidget(this);
    ui->horizontalLayout->addWidget(m_tabWidget);

    //add page1
    QFrame *page1 = new QFrame(m_tabWidget);
    QHBoxLayout *h1 = new QHBoxLayout(page1);

    QLabel *labelName = new QLabel(page1);
    labelName->setText("姓名: ");
    h1->addWidget(labelName);

    QLineEdit *le1 = new QLineEdit(page1);
    h1->addWidget(le1);

    //add page2
    QFrame *page2 = new QFrame(m_tabWidget);
    QHBoxLayout *h2 = new QHBoxLayout(page2);

    QLabel *labelName2 = new QLabel(page2);
    labelName2->setText("性别: ");
    h2->addWidget(labelName2);

    QComboBox *cb2 = new QComboBox(page2);
    cb2->addItems(QStringList()<<"男"<<"女");
    h2->addWidget(cb2);

    m_tabWidget->addTab(page1,"姓名");
    m_tabWidget->addTab(page2,"性别");

运行截图:

3.右键菜单

这里,只做了一个右键删除当前page页

    //开启右键菜单
    m_tabWidget->setContextMenuPolicy(Qt::CustomContextMenu);

    m_menu = new QMenu(this);
    m_actionAdd = new QAction("添加",m_menu);
    connect(m_actionAdd,&QAction::triggered,this,&Form::slotAdd);
    m_actionDel = new QAction("删除",m_menu);
    connect(m_actionDel,&QAction::triggered,this,&Form::slotDel);
    m_menu->addAction(m_actionAdd);
    m_menu->addAction(m_actionDel);

    connect(m_tabWidget,&QTabWidget::customContextMenuRequested,this,&Form::slotPopMenu);

    void Form::slotPopMenu(const QPoint &pos)
    {
        m_menu->exec(m_tabWidget->mapToGlobal(pos));
    }

    void Form::slotAdd()
    {
        //add page
    }

    void Form::slotDel()
    {
       m_tabWidget->removeTab(m_tabWidget->currentIndex());
    }

3.设置风格

以下style仅供参考

const QString styles = "\
QTabWidget::pane\
{\
    border-top: 2px solid #C2C7CB;\
}\
QTabWidget::tab-bar\
{\
    left: 5px;\
}\
QTabBar::tab\
{\
    background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,\
                                    stop: 0 #E1E1E1, stop: 0.4 #DDDDDD,\
                                    stop: 0.5 #D8D8D8, stop: 1.0 #D3D3D3);\
    border: 2px solid #C4C4C3;\
    border-bottom-color: #C2C7CB;\
    border-top-left-radius: 4px;\
    border-top-right-radius: 4px;\
    min-width: 8ex;\
    padding: 2px;\
}\
QTabBar::tab:selected, QTabBar::tab:hover\
{\
    background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,\
                                    stop: 0 #fafafa, stop: 0.4 #f4f4f4,\
                                    stop: 0.5 #e7e7e7, stop: 1.0 #fafafa);\
}\
QTabBar::tab:selected\
{\
    border-color: #9B9B9B;\
    border-bottom-color: #C2C7CB;\
}\
QTabBar::tab:!selected\
{\
    margin-top: 2px;\
}";

 源码:https://download.csdn.net/download/wzz953200463/13188035