Qt QTabWidget详解

r囧r小猫 2022-12-23 12:29 518阅读 0赞

# 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:

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3d6ejk1MzIwMDQ2Mw_size_16_color_FFFFFF_t_70][]

# 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][https_download.csdn.net_download_wzz953200463_13188035]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3d6ejk1MzIwMDQ2Mw_size_16_color_FFFFFF_t_70]: /images/20221120/bd75f32339d74485a656b4b0c746046a.png
[https_download.csdn.net_download_wzz953200463_13188035]: https://download.csdn.net/download/wzz953200463/13188035