From Forum Nokia Wiki

ID	...	Creation date	June 15, 2009
Platform	S60 3rd Edition, FP1, FP2 S60 5th Edition	Tested on devices	Nokia 5800 XpressMusic
Category	Qt for S60	Subcategory	UI

Keywords (APIs, classes, methods, functions): QMenu

Overview

This code snippets shows how to create sub-menu in Qt. we need to call addMenu() method to add submenu in existing menu item.

This snippet can be self-signed. As it does not use any API which require developer/certified signing.

Preconditions

• Download and Install latest version Qt for Symbian - Installation packages which has links on how to install the latest version

Headers files

#ifndef SUBMENU_H
#define SUBMENU_H
 
#include <QtGui/QMainWindow>
#include "ui_SubMenu.h"
 
class SubMenu : public QMainWindow
{
    Q_OBJECT
 
public:
	SubMenu(QWidget *parent = 0);
    ~SubMenu();
 
private slots:
    void wikiForumNokia();
    void DiBoForumNokia();
    void nokiaIndia();
    void nokiaEurope();
    void help();
    void about();
 
 
private:
    void createMyMenus();
 
private:
    Ui::SubMenuClass ui;
 
    QMenu *nokiaMenu;
    QMenu *forumNokiaMenu;
 
    QAction *menu_nokiaIndiaAction;
    QAction *menu_nokiaEuropeAction;
    QAction *menu_wikiAction;
    QAction *menu_DiBoAction;
    QAction *menu_aboutAction;
    QAction *menu_helpAction;
    QAction *menu_exitAction;
};
 
#endif // SUBMENU_H

Source

#include "SubMenu.h"
#include <QMenu>
#include <QMessageBox>
#include <QDesktopServices>
#include <QUrl>
 
SubMenu::SubMenu(QWidget *parent)
    : QMainWindow(parent)
{
	ui.setupUi(this);
	setWindowTitle(tr("Sub Menus"));
	//Create memu and sub menu.
	createMyMenus();
}
 
void SubMenu::createMyMenus()
{	
 
	//add action for help menu.
	menu_helpAction = new QAction(tr("Help"), this);
	menuBar()->addAction(menu_helpAction);
	connect(menu_helpAction, SIGNAL(triggered()), this, SLOT(help()));
 
	//add action for about menu.
	menu_aboutAction = new QAction(tr("About"), this);
	menuBar()->addAction(menu_aboutAction);
	connect(menu_aboutAction, SIGNAL(triggered()), this, SLOT(about()));
 
	/* for nokia menu and its sub menus. */
	//create action Nokia India sub menu item.
	menu_nokiaIndiaAction = new QAction(tr("Nokia India"), this);
        connect(menu_nokiaIndiaAction, SIGNAL(triggered()), this, SLOT(nokiaIndia()));
 
        //create action Nokia Europe sum menu item
        menu_nokiaEuropeAction = new QAction(tr("Nokia Europe"), this);
	connect(menu_nokiaEuropeAction, SIGNAL(triggered()), this, SLOT(nokiaIndia()));
 
	//add menu item nokia to main menu
	nokiaMenu = menuBar()->addMenu(tr("Nokia"));
	//add action for nokia india sub-menu
	nokiaMenu->addAction(menu_nokiaIndiaAction);
	//add action for nokia india sub-menu
	nokiaMenu->addAction(menu_nokiaEuropeAction);
 
	//create action for Discussion Boards sub menu item
	menu_DiBoAction = new QAction(tr("Discussion Boards"), this);
        connect(menu_DiBoAction, SIGNAL(triggered()), this, SLOT(DiBoForumNokia()));
 
       //create action for Wiki sub menu item
        menu_wikiAction = new QAction(tr("Wiki"), this);
	connect(menu_wikiAction, SIGNAL(triggered()), this, SLOT(wikiForumNokia()));
 
	//add menu item forum nokia to menu item nokia
	forumNokiaMenu = nokiaMenu->addMenu(tr("Forum Nokia"));
	//add action for Discussion Boards  sub-menu
	forumNokiaMenu->addAction(menu_DiBoAction);
	//add action for Wiki  sub-menu
	forumNokiaMenu->addAction(menu_wikiAction);
 
	//Add action for exit menu.
	menu_exitAction = new QAction(tr("Exit"), this);
	menuBar()->addAction(menu_exitAction);
	connect(menu_exitAction, SIGNAL(triggered()), this, SLOT(close()));
 
 
}
 
/* handle action for wiki sub-menu item. */
void SubMenu::wikiForumNokia()
{
	QDesktopServices::openUrl(QUrl(tr("http://wiki.forum.nokia.com/index.php/Wiki_Home")));
}
 
/* handle action for Discussion Boards sub-menu item. */
void SubMenu::DiBoForumNokia()
{
	QDesktopServices::openUrl(QUrl(tr("http://discussion.forum.nokia.com/forum/")));
}
 
/* handle action for nokia india sub-menu item. */
void SubMenu::nokiaIndia()
{
	QDesktopServices::openUrl(QUrl(tr("http://www.nokia.co.in/")));
}
 
/* handle action for nokia europe sub-menu item. */
void SubMenu::nokiaEurope()
{
	QDesktopServices::openUrl(QUrl(tr("http://europe.nokia.com/home")));
}
 
/* handle action for help menu item. */
void SubMenu::help()
{
	QMessageBox::information(this, tr("Help Menu"),tr("This example shows how to create submenu."));
}
 
/* handle action for about menu item. */
void SubMenu::about()
{
	QMessageBox::about(this, tr("About Menu"),tr("Testing Sub-Menus."));
}
 
 
SubMenu::~SubMenu()
{
 
}

Postconditions

The code snippet is expected to show sum-menus in application.

External Links

• QMenu: QMenu reference

Internal Links

• How to create Menu in Qt for S60?
• Dynamic Menu’s with QT

Code Example

• The Code Example will show sub-menu in application and is tested on Nokia 5800 XpressMusic.