qt中的TabWidget应用程序框架

#include 

//-----------------------------------------------------------------------  1

//整体基于  

class MainWindow : public QMainWindow

{

private slots:   

    void open();

    void close();   

    void tabCloseRequested(int index); 

}

//-------------------------------------------------------------------------2

void MainWindow::tabCloseRequested(int index)

 {

  QString tabCaption = ui->tabWidget->tabText(index);

  if(QMessageBox::question(this, tr("Message"), tr("是否要关闭窗口：") + tabCaption, QMessageBox::Yes | QMessageBox::No) == QMessageBox::Yes)

    delete ui->tabWidget->widget(index);//关闭页签并释放掉对应的widget控件对象

 }

//------------------------------------------------------------------------ 3

//构造函数中实现

     delete ui->tab;  //删除tabWidget上默认带有的两个页签

     delete ui->tab_2;

                     //新建第一个页面的部件

     Dialog222 *label = new Dialog222();      

     QIcon icon1(":/image/m1.ico");

     ui->tabWidget->addTab(label, icon1, "  解 压");

      //点击页签上的叉号触发

     connect(ui->tabWidget, SIGNAL(tabCloseRequested(int)), this, SLOT(tabCloseRequested(int)));

//----------------------------------------------------------------------  4

void MainWindow::open()

{

    ui->tabWidget->removeTab(0);

    Dialog222 *label = new Dialog222();

    //向QTabWidget中添加第一个页面

    QIcon icon1(":/image/m1.ico");

    ui->tabWidget->addTab(label, icon1, "  解 压");

}