MenuBar - why it doesn't work?

amy.cpp

Hi, I wrote this code:

editor = new QTextEdit;
setCentralWidget(editor);
menu = new QMenuBar;
listOfMenus = new QMenu[2];
listOfMenus[0].setTitle("File");
listOfMenus[1].setTitle("Edit");
QString textes[] = {"New","Open","Save","Save as", "Print", "Exit",
                   "Undo", "Redo", "Copy","Paste","Cut"};
QString icons[] = {"new","open","save","save","print","exit",
                  "undo", "redo", "copy", "paste", "cut"};

QAction actions[11];

for(int i=0; i<11; i++){
    actions[i].setIcon(QIcon(QString(":/Images/" + icons[i])));
    actions[i].setText(textes[i]);
}

for(int i=0; i<6; i++)
    listOfMenus[0].addAction(&actions[i]);

for(int i=6; i<11; i++)
    listOfMenus[1].addAction(&actions[i]);

menu->addMenu(listOfMenus);
menu->addMenu(&listOfMenus[1]);
menu->setVisible(true);
setMenuBar(menu);

It sets values of actions and then adds them into menus;
and finally, menus are added to menu bar

Unfortunately, code doesn't work... Do you know what's wrong?

mrjj

Hi
I think you action runs out of scope

it seems to be local variable
QAction actions[11];

and you take address of them so it does not copy but refernce inside the list
listOfMenus[0].addAction(&actions[i]);

but it looks to me like the actions[11]; lives in constructor and hence
when Mainwindow is shown, they are all already deleted.

Move the list to be a member of the class and see.

Damn Pl45m4 beat me to it :)

Pl45m4

@amy-cpp

Hi,

what exactly does not work?

Better use container types like QList or QVector instead of std::arrays to store QObjects.

amy.cpp

@Pl45m4 Code creates menu bar, and menus 1 and 2, but doesn't add actions to menus

Pl45m4