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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "mainwindow.h"
#include "ui_mainwindow.h"
bool MainWindow::newMenubar = false;
bool MainWindow::parentlessMenubar = false;
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
const int level = 3;
QMenuBar *mb;
if (newMenubar)
mb = new QMenuBar(parentlessMenubar ? nullptr : this);
else
mb = ui->menuBar;
populateMenu(mb, level);
if (newMenubar)
setMenuBar(mb);
}
MainWindow::~MainWindow()
{
delete ui;
}
// We do all the permutations on the following 3 operations:
//
// A: Add action to parent menu
// P: Populate the submenu
// S: Set action submenu
//
// Recursing on menu population gives more combinations of
// creation and insertions.
void MainWindow::populateMenu(QWidget *menu, int level)
{
if (level > 0) {
--level;
doAPS(menu, level);
doASP(menu, level);
doPAS(menu, level);
doSPA(menu, level);
doSAP(menu, level);
doPSA(menu, level);
} else {
static int itemCounter = 0;
static const char *sym[] = { "Foo", "Bar", "Baz", "Quux" };
for (uint i = 0; i < sizeof(sym) / sizeof(sym[0]); i++) {
QString title = QString::fromLatin1("%1 Item %2").arg(QLatin1String(sym[i])).arg(itemCounter);
menu->addAction(new QAction(title));
}
++itemCounter;
}
}
void MainWindow::doAPS(QWidget *menu, int level)
{
auto *action = new QAction("A P S");
menu->addAction(action);
auto *submenu = new QMenu;
populateMenu(submenu, level);
action->setMenu(submenu);
}
void MainWindow::doASP(QWidget *menu, int level)
{
auto *action = new QAction("A S P");
menu->addAction(action);
auto *submenu = new QMenu;
action->setMenu(submenu);
populateMenu(submenu, level);
}
void MainWindow::doPAS(QWidget *menu, int level)
{
auto *submenu = new QMenu;
populateMenu(submenu, level);
auto *action = new QAction("P A S");
menu->addAction(action);
action->setMenu(submenu);
}
void MainWindow::doSPA(QWidget *menu, int level)
{
auto *action = new QAction("S P A");
auto *submenu = new QMenu;
action->setMenu(submenu);
populateMenu(submenu, level);
menu->addAction(action);
}
void MainWindow::doSAP(QWidget *menu, int level)
{
auto *action = new QAction("S A P");
auto *submenu = new QMenu;
action->setMenu(submenu);
menu->addAction(action);
populateMenu(submenu, level);
}
void MainWindow::doPSA(QWidget *menu, int level)
{
auto *action = new QAction("P S A");
auto *submenu = new QMenu;
populateMenu(submenu, level);
action->setMenu(submenu);
menu->addAction(action);
}
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