Menu and subMenu

[saam_6066]

Hi,

I have a main menu that I need to update it in run time, I want to add a submenu to it whenever a special node is added to the scene so that the user can see the node name in the submenu and do some actions based on that. I searched a lot but couldn't find a good way to do this in my application. I will be glad if someone can help me with it.

Thanks!

[mmallad]

You can use QAction to make new action and add it to the menu with addAction function and you can connect to triggered signal to do some action.
@
QAction *action = new QAction(tr("New Sub Menu"),this);
action->setShortcut(Qt::CTRL | Qt::Key_M);
connect(action, SIGNAL(triggerSignalHere()), this, SLOT(youSlotHere()));
yourMainMenu->addAction(action);
@

[saam_6066]

Thanks for the answer but I want to have sth like this:

a main menu with the following:

Delete
Move to right
Move to left
Add to ....

where add to... is a sub menu containing the following:

"Add to ..." :
processor 1
processor 2
.
.
.

"Add to .. " menu is added in real-time whenever a new processor is created in the graphicsscene. and I have to avoid adding "Add to.. " multiple times.

[Chris Kawa]

Take a look at this example. Maybe it will help you:
@
//of course don't use globals, this is just an example
QMenu* menu = new QMenu( someParent );
menu->addAction("Delete");
menu->addAction("Move to right");
menu->addAction("Move to left");
QAction* addEntry = menu->addAction("Add to...");

QMenu* procmenu = new QMenu(...);
addEntry->setMenu(procmenu);

void addProcessor()
{
procmenu->addAction("Processor " + QString::number(procmenu->actions().size() + 1));
}

void showMenu(QPoint pt)
{
addEntry->setVisible( procmenu->actions().size() > 0 );
menu->popup(pt);
}

//and then use it:
addProcessor();
addProcessor();
showMenu(QPoint(x,y));
@
Similarly you can add removeProcessor() etc.

[saam_6066]

Thanks for the answer! it solved my problem! :)