3.QMainWindow 菜单栏 工具栏 状态栏

#include "mainwindow.h"
#include <QMenu>
#include <QMenuBar>
#include <QAction>
#include <QToolBar>
#include <QStatusBar>
#include <QPushButton>
#include <QTextEdit>
#include <QDockWidget>
 
 
MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
{
    // meun
    QMenuBar *mbar = menuBar();
 
 
    QMenu *pFile = mbar->addMenu("File");
 
 
    QAction *pNew = pFile->addAction("New File");
    QAction *pOpen = pFile->addAction("Open File");
 
 
    pFile->addSeparator();  // add separator
 
 
    QAction *pRecentFile = pFile->addAction("Recent File");
 
 
    //connect(pNew, &QAction::triggered, this, &QMainWindow::close);
 
 
    // tool
    QToolBar *toolBar = addToolBar("toolBar");
 
 
    toolBar->addAction(pNew);
 
 
    QPushButton *bOpenFile = new QPushButton(this);
 
 
    bOpenFile->setText("Open File");
    toolBar->addWidget(bOpenFile);
 
 
    // Status
    QStatusBar *pStatuesBar = statusBar();
 
 
    QLabel *plabel = new QLabel(this);
    plabel->setText("Normal text file");
    pStatuesBar->addWidget(plabel);
 
 
    // TextEdit
    QTextEdit *textEdit = new QTextEdit(this);
    setCentralWidget(textEdit);
 
 
    // Dock window
    QDockWidget *dockW = new QDockWidget(this);
    addDockWidget(Qt::RightDockWidgetArea, dockW);
 
 
    QTextEdit *textEditDockW = new QTextEdit(this);
    dockW->setWidget(textEditDockW);
 
 
}
 
MainWindow::~MainWindow()
{
}