How to create virtual SLOT for action

betmens

Lab Rat
18 posts

Is it possible to send fonction for SLOT?

//get actions
void get_actions(QWidget *widget, QStringList list, ??? slot){
foreach (QString t, list){
QAction *a = new QAction("&"+t, widget);
a->setObjectName("act_"+t);
widget->addAction(a);
connect(a, SIGNAL(triggered()), ???, SLOT(slot));
}
}
void Project::do_something_1(){...}
void Project::do_something_2(){...}
...
get_actions(ui->menu_actions_1, QStrinList()<<"name_1"<<"name_2", do_something_1());
...
get_actions(ui->menu_actions_2, QStrinList()<<"name_3"<<"name_4", do_something_2());

Thanks

3 replies

Rahul Das

Robot Herder
354 posts

What exactly are you trying to do ? Slot can be treated as any other c++ functions. Looks like you might want to look at QSignalMapper

Signature

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Rahul Das

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RaubTieR

Lab Rat
42 posts

As we look into the qobject.h file for the “connect” declaration, it becomes clear what to do.

bool connect(const QObject *sender, const char *signal, const char *member // , ...

I’ve simplified the declaration since it was big. But here we see that both SIGNAL and SLOT are const char pointer. Hence your code of choice is:

//get actions
void get_actions(QWidget *widget, QStringList list, const char *slot){
foreach (QString t, list){
QAction *a = new QAction("&"+t, widget);
a->setObjectName("act_"+t);
widget->addAction(a);
connect(a, SIGNAL(triggered()), slot);
}
}
void Project::do_something_1(){...}
void Project::do_something_2(){...}
...
get_actions( ui->menu_actions_1, QStrinList()<<"name_1"<<"name_2", SLOT(do_something_1()) );
...
get_actions( ui->menu_actions_2, QStrinList()<<"name_3"<<"name_4", SLOT(do_something_2()) );

betmens

Lab Rat
18 posts

Thanks RaubTieR.
Works great.

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