TraverseMenu

#include "widget.h"

#include <QtCore>
#include <QtGui>
#include <QtWidgets>
#include <iostream>

static int recursionDepth = 0;
static void traverseMenu(QMenu *menu)
{
    foreach (QAction *action, menu->actions())
    {
        if (action->isSeparator())
        {
            for(int i=0; i<=recursionDepth; ++i)
            {
                std::cout << "\t";
            }
            std::cout << ">>" << "separator" << std::endl;
        }
        else if (action->menu())
        {
            for(int i=0; i<=recursionDepth; ++i)
            {
                std::cout << "\t";
            }
            std::cout << ">>" << qPrintable(action->text()) << "(menu)" << std::endl;

            ++recursionDepth;
            traverseMenu(action->menu());
            --recursionDepth;
        }
        else
        {
            for(int i=0; i<=recursionDepth; ++i)
            {
                std::cout << "\t";
            }
            std::cout << ">>" << qPrintable(action->text()) << std::endl;
        }
    }
}

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Widget w;

    QMenu *menu = new QMenu("Main Menu");
    menu->addAction("Level0First");
    menu->addAction("Level0Second");

    menu->addSeparator();
    QAction* third = menu->addAction("Level0Third");
    menu->addSeparator();
    QMenu *subMenu = new QMenu("Sub Menu");
    subMenu->addAction("Level1First");
    subMenu->addAction("Level1Second");

    subMenu->addSeparator();
    QAction* third1 = subMenu->addAction("Level1Third");
    subMenu->addSeparator();
    QMenu *subMenu1 = new QMenu("Sub-sub Menu");
    subMenu1->addAction("Level2First");
    subMenu1->addAction("Level2Second");
    subMenu1->addAction("Level2Third");
    subMenu1->addAction("Level2Fourth");
    subMenu1->addAction("Level2Fifth");
    third1->setMenu(subMenu1);

    subMenu->addAction("Level1Fourth");
    subMenu->addAction("Level1Fifth");
    third->setMenu(subMenu);

    menu->addAction("Level0Fourth");
    menu->addAction("Level0Fifth");

    traverseMenu(menu);

    w.show();
    return a.exec();
}