[SOLVED]Bridging Signal - Slot connection



  • I'm trying to bride a signal - slot connection over a 3rd object.
    Therefor i have implemented a connector class, which uses an id to identify the corresponding participants which registered a signal or slot method:

    class Participant : public QObject
    {
        Q_OBJECT
    public:
        explicit Participant(QObject *in_object, QMetaMethod *in_method, QObject *parent = 0) : QObject(parent),
            m_p_object(in_object), m_p_method(in_method)
        {
        }
    
        QObject *object() { return m_p_object; }
        QMetaMethod *method() { return m_p_method; }
    
    private:
        QObject *m_p_object;
        QMetaMethod *m_p_method;
    };
    
    bool CheckConnection(int in_type)
        {
            Participant *sender = 0, *receiver = 0;
    
            if (m_signal_bridge_map.contains(in_type))
            {
                sender = m_signal_bridge_map.value(in_type);
                if (sender == 0) return false;
                if (sender->object() == 0) return false;
                if (sender->method()->isValid() == false) return false;
                qDebug() << "IConnector::CheckConnection - Sender found ...";
            }
    
            if (m_remote_slot_map.contains(in_type))
            {
                receiver = m_remote_slot_map.value(in_type);
                if (receiver == 0) return false;
                if (receiver->object() == 0) return false;
                if (receiver->method()->isValid() == false) return false;
                qDebug() << "IConnector::CheckConnection - Receiver found ...";
            }
    
            if (sender == 0 || receiver == 0) return false;
    
            qDebug() << "IConnector::CheckConnection - connecting" << sender->method()->name() << receiver->method()->name();
            return QObject::connect(sender->object(), sender->method()->name(), receiver->object(), receiver->method()->name());
        }
    

    When a sender-receiver pair is found, the sender->method()->name() call runs into ASSERT:
    Imgur

    Any idea why this wouldn't work?



  • Found the error.
    Stored the pointer of a local QMetaMethod object ... * blush *


Log in to reply
 

Looks like your connection to Qt Forum was lost, please wait while we try to reconnect.