C++ GUI Qt4编程(07)-3.1menu

1. C++ GUI Qt4编程第三章，添加menu菜单。

2. mainwindow.h

#ifndef MAINWINDOW_H

#define MAINWINDOW_H

#include <QMainWindow>

class QMenu;

class QAction;

class MainWindow : public QMainWindow

{

    Q_OBJECT

public:

    MainWindow();

private:

    /*菜单*/

    QMenu *fileMenu;

    QMenu *editMenu;

    QMenu *toolsMenu;

    QMenu *optionsMenu;

    QMenu *helpMenu;

    /*File动作*/

    QAction *newAction;

    QAction *openAction;

    QAction *saveAction;

    QAction *saveAsAction;

    QAction *exitAction;

    /*Edit动作*/

    QAction *cutAction;

    QAction *copyAction;

    QAction *pasteAction;

    QAction *deleteAction;

    QMenu   *selectSubMenu;

    QAction *selectRowAction;

    QAction *selectColumnAction;

    QAction *selectAllAction;

    QAction *findAction;

    QAction *goToCellAction;

    /*Tools动作*/

    QAction *recalculateAction;

    QAction *sortAction;

    /*Options动作*/

    QAction *showGridAction;

    QAction *autoRecalculateAction;

    /*Help动作*/

    QAction *aboutAction;

    QAction *aboutQtAction;

    void createMenus();

    void createActions();

    void createFileActions();

    void createEditActions();

    void createToolsActions();

    void createOptionsActions();

    void createHelpAction();

};

#endif    /*MAINWINDOW_H*/

3. mainwindow.cpp

#include <QMenu>

#include <QMenuBar>

#include <QAction>

#include "mainwindow.h"

MainWindow::MainWindow()

{

    createActions();

    createMenus();

}

void MainWindow::createMenus()

{

    /*file menu*/

    fileMenu = menuBar()->addMenu(tr("&File"));

    fileMenu->addAction(newAction);

    fileMenu->addAction(openAction);

    fileMenu->addAction(saveAction);

    fileMenu->addAction(saveAsAction);

    fileMenu->addSeparator();

    fileMenu->addAction(exitAction);

    /*edit menu*/

    editMenu = menuBar()->addMenu(tr("&Edit"));

    editMenu->addAction(cutAction);

    editMenu->addAction(copyAction);

    editMenu->addAction(pasteAction);

    editMenu->addAction(deleteAction);

    selectSubMenu = editMenu->addMenu(tr("&Select"));

    selectSubMenu->addAction(selectRowAction);

    selectSubMenu->addAction(selectColumnAction);

    selectSubMenu->addAction(selectAllAction);

    editMenu->addSeparator();

    editMenu->addAction(findAction);

    editMenu->addAction(goToCellAction);

    /*tools menu*/

    toolsMenu = menuBar()->addMenu(tr("&Tools"));

    toolsMenu->addAction(recalculateAction);

    toolsMenu->addAction(sortAction);

    /*option menu*/

    optionsMenu = menuBar()->addMenu(tr("&Option"));

    optionsMenu->addAction(showGridAction);

    optionsMenu->addAction(autoRecalculateAction);

    /*间隔器*/

    menuBar()->addSeparator();

    /*help menu*/

    helpMenu = menuBar()->addMenu(tr("&Help"));

    helpMenu->addAction(aboutAction);

    helpMenu->addAction(aboutQtAction);

}

void MainWindow::createActions()

{

    createFileActions();

    createEditActions();

    createToolsActions();

    createOptionsActions();

    createHelpAction();

}

/*file动作*/

void MainWindow::createFileActions()

{

    newAction = new QAction(tr("&New"), this);

    openAction = new QAction(tr("&Open"), this);

    saveAction = new QAction(tr("&Save"), this);

    saveAsAction = new QAction(tr("Save &As..."), this);

    exitAction = new QAction(tr("E&xit"), this);

}

/*edit动作*/

void MainWindow::createEditActions()

{

    cutAction = new QAction(tr("Cu&t"), this);

    copyAction = new QAction(tr("&Copy"), this);

    pasteAction = new QAction(tr("&Paste"), this);

    deleteAction = new QAction(tr("&Delete"), this);

    selectRowAction = new QAction(tr("&Row"), this);

    selectColumnAction = new QAction(tr("&Column"), this);

    selectAllAction = new QAction(tr("&All"), this);

    findAction = new QAction(tr("&Find..."), this);

    goToCellAction = new QAction(tr("&Go to Cell..."), this);

}

/*tools动作*/

void MainWindow::createToolsActions()

{

    recalculateAction = new QAction(tr("&Recalculate"), this);

    sortAction = new QAction(tr("&Sort..."), this);

}

/*options动作*/

void MainWindow::createOptionsActions()

{

    showGridAction = new QAction(tr("&Show Grid"), this);

    autoRecalculateAction = new QAction(tr("Auto-Recalculate"), this);

}

/*help动作*/

void MainWindow::createHelpAction()

{

    aboutAction = new QAction(tr("&About"), this);

    aboutQtAction = new QAction(tr("About &Qt"), this);

}

4. main.cpp

#include <QApplication>

#include "mainwindow.h"

int main(int argc, char *argv[])

{

    QApplication app(argc, argv);

    MainWindow *win = new MainWindow;

    win->show();

    return app.exec();

}