MainWindow::MainWindow(QWidget *parent): QMainWindow(parent), ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    // 全局配置tabWidget選項卡
    ui->tabWidget->setTabPosition(QTabWidget::North);       // 設置選項卡方位
    ui->tabWidget->setIconSize(QSize(50, 25));              // 設置圖標整體大小
    ui->tabWidget->setTabShape(QTabWidget::Triangular);     // 設置選項卡形狀
    ui->tabWidget->setMovable(true);                        // 設置選項卡是否可拖動
    ui->tabWidget->usesScrollButtons();                     // 選項卡滾動

    // 設置選項卡1
    ui->tabWidget->setTabText(0,QString("進制轉(zhuǎn)換標簽"));           // 設置選項卡文本
    ui->tabWidget->setTabIcon(0,QIcon(":/image/about.ico"));      // 設置選項卡圖標
    ui->tabWidget->setTabToolTip(0,QString("SpinBox 與進制轉(zhuǎn)換"));  // 設置鼠標懸停提示

    // 設置選項卡2
    ui->tabWidget->setTabText(1,QString("顏色配置標簽"));          // 設置選項卡文本
    ui->tabWidget->setTabIcon(1,QIcon(":/image/file.ico"));      // 設置選項卡圖標
    ui->tabWidget->setTabToolTip(1,QString("滑塊條的使用"));       // 設置鼠標懸停提示

    // 設置選項卡3
    ui->tabWidget->setTabText(2,QString("系統(tǒng)配置標簽"));          // 設置選項卡文本
    ui->tabWidget->setTabIcon(2,QIcon(":/image/lock.ico"));      // 設置選項卡圖標
    ui->tabWidget->setTabToolTip(2,QString("圓形組件與數(shù)碼表"));    // 設置鼠標懸停提示

    // 設置選項卡4
    ui->tabWidget->setTabText(3,QString("文件配置標簽"));          // 設置選項卡文本
    ui->tabWidget->setTabIcon(3,QIcon(":/image/lock.ico"));      // 設置選項卡圖標
    ui->tabWidget->setTabToolTip(3,QString("文件配置組合"));       // 設置鼠標懸停提示
}

#include <iostream>
#include <QStyleFactory>

MainWindow::MainWindow(QWidget *parent): QMainWindow(parent), ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    ui->treeWidget->clear();
    ui->treeWidget->setColumnCount(1);
    ui->treeWidget->setHeaderHidden(true);

    // 隱藏tabWidget頭部
    ui->tabWidget->tabBar()->hide();

    // 為treeWidget增加線條
    ui->treeWidget->setStyle(QStyleFactory::create("windows"));

    // ----------------------------------------------------------
    // 創(chuàng)建 [系統(tǒng)設置] 父節(jié)點
    // ----------------------------------------------------------
    QTreeWidgetItem *system_setup = new QTreeWidgetItem(ui->treeWidget,QStringList(QString("系統(tǒng)位置")));
    system_setup->setFlags(Qt::ItemIsSelectable | Qt::ItemIsUserCheckable | Qt::ItemIsEnabled | Qt::ItemIsAutoTristate);
    system_setup->setIcon(0,QIcon(":/image/lock.ico"));

    // 給父節(jié)點添加子節(jié)點
    QTreeWidgetItem *system_setup_child_node_1 = new QTreeWidgetItem(system_setup);
    system_setup_child_node_1->setText(0,"修改密碼");
    system_setup_child_node_1->setIcon(0,QIcon(":/image/about.ico"));

    QTreeWidgetItem *system_setup_child_node_2 = new QTreeWidgetItem(system_setup);
    system_setup_child_node_2->setText(0,"設置菜單");
    system_setup_child_node_2->setIcon(0,QIcon(":/image/about.ico"));

    // ----------------------------------------------------------
    // 創(chuàng)建 [頁面布局] 父節(jié)點
    // ----------------------------------------------------------
    QTreeWidgetItem *page_layout = new QTreeWidgetItem(ui->treeWidget,QStringList(QString("頁面布局")));
    page_layout->setFlags(Qt::ItemIsSelectable | Qt::ItemIsUserCheckable | Qt::ItemIsEnabled | Qt::ItemIsAutoTristate);
    page_layout->setIcon(0,QIcon(":/image/lock.ico"));

    QTreeWidgetItem *page_layout_clild_1 = new QTreeWidgetItem(page_layout);
    page_layout_clild_1->setText(0,"頁面配置");
    page_layout_clild_1->setIcon(0,QIcon(":/image/about.ico"));

    QTreeWidgetItem *page_layout_clild_2 = new QTreeWidgetItem(page_layout);
    page_layout_clild_2->setText(0,"頁面參數(shù)");
    page_layout_clild_2->setIcon(0,QIcon(":/image/about.ico"));

    ui->treeWidget->expandAll();
}

void MainWindow::on_treeWidget_itemDoubleClicked(QTreeWidgetItem *item, int column)
{
    QString str = item->text(column);

     if(str == "修改密碼")
     {
         ui->tabWidget->setCurrentIndex(0);
     }
     if(str == "設置菜單")
     {
         ui->tabWidget->setCurrentIndex(1);
     }
     if(str == "頁面配置")
     {
         ui->tabWidget->setCurrentIndex(2);
     }
     if(str == "頁面參數(shù)")
     {
         ui->tabWidget->setCurrentIndex(3);
     }
}