gtkmm changing toggle button state without invoking signal

Question

I'm trying to make multiple Gtk::ToggleButton's to act as Gtk::RadioButton's. When one of the buttons is pressed that other switch off.

It would be as simple as creating a switch statement if Gtk::ToggleButton didn't handle switching (pressed or not pressed) on its own.

So, I'm planning to handle it's switching as regular button with calling signal_clicked().connect() which calls for function set_active(true/false) which makes button look pressed or not pressed.

Here is example of what I'm trying to do:

Event calls when button is clicked:

//enum {infoState, artState, editState, userState, exitState}; is initialised in header 

artButt.signal_clicked().connect(sigc::bind<short int>(sigc::mem_fun(*this, &fooclass::toggleButton), artButt));  
editButt.signal_clicked().connect(sigc::bind<short int>(sigc::mem_fun(*this, &fooclass::toggleButton), editButt));

Toggling button:

void fooClass::toggleButton()
{
//oldState and enum {infoState, artState, editState, userState, exitState}; are initialised in header
if(oldState != newState)
{   
    //disable old togglebutton
    switch (oldState)
        {
            case infoState:
                infoButt.set_active(false);
            break;
            case artState:
                artButt.set_active(false);
            break;
            case editState:
                editButt.set_active(false);
            break;
            case userState:
                userButt.set_active(false);
            break;
        }

        //enable new one
        switch (newState)
        {
            case infoState:
                userButt.set_active(false);
            break;
            case artState:
                artButt.set_active(true);
            break;
            case editState:
                editButt.set_active(true);
            break;
            case userState:
                userButt.set_active(true);
            break;
        }
        oldState = newState;
}    
}    

Answer 1

Just useGtk::RadioButton directly. With the draw-indicator property you can make them look like regular toggle buttons.