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diff --git a/tests/manual/widgets/widgets/bigmenucreator/mainwindow.cpp b/tests/manual/widgets/widgets/bigmenucreator/mainwindow.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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);
+}