QSignalMapper One single Object

[wysota]

What exactly do you mean by "track signals"?

[wysota]

Anyway, try this:

#include <QtGui>
 
 
class SignalTracker : public QObject {
      int qt_metacall(QMetaObject::Call call, int id, void **args) {
      id = QObject::qt_metacall(call, id, args);
      if(id==-1 || call != QMetaObject::InvokeMetaMethod)
        return id;
        if(!m_slots.contains(id)) return -1;
        Signal sig = m_slots.value(id);
        qDebug() << "Object:" << sig.source->objectName() << "signal:" << sig.signal;
        return -1;
      }
public:
    SignalTracker(QObject *parent = 0) : QObject(parent) {
      m_slotId = 0;
    }
    bool connectSignal(QObject *obj, const char *signal) {
      QByteArray theSignal = QMetaObject::normalizedSignature(signal);
      int signalId = obj->metaObject()->indexOfSignal(theSignal);
      if(signalId == -1) {
        return false;
      }
      m_slots[++m_slotId] = Signal(obj, theSignal);
      QMetaObject::connect(obj, signalId, this, QObject::metaObject()->methodCount()+m_slotId);
      return true;
    }
private:
    int m_slotId;
    struct Signal {
      QObject *source;
      QByteArray signal;
      Signal(QObject *src, const QByteArray &ba) : source(src), signal(ba){}
      Signal() : source(0){}
    };
    QHash<int,Signal> m_slots;
};
 
int main(int argc, char **argv){
  QApplication app(argc, argv);
  SignalTracker tracker;
  QPushButton button("Click me");
  button.setObjectName("some button");
  tracker.connectSignal(&button, "clicked()");
  button.show();
  QLineEdit le;
  le.setObjectName("some line edit");
  tracker.connectSignal(&le, "textChanged(const QString &)");
  le.show();
  return app.exec();
};

#include <QtGui>


class SignalTracker : public QObject {
      int qt_metacall(QMetaObject::Call call, int id, void **args) {
      id = QObject::qt_metacall(call, id, args);
      if(id==-1 || call != QMetaObject::InvokeMetaMethod)
        return id;
        if(!m_slots.contains(id)) return -1;
        Signal sig = m_slots.value(id);
        qDebug() << "Object:" << sig.source->objectName() << "signal:" << sig.signal;
        return -1;
      }
public:
    SignalTracker(QObject *parent = 0) : QObject(parent) {
      m_slotId = 0;
    }
    bool connectSignal(QObject *obj, const char *signal) {
      QByteArray theSignal = QMetaObject::normalizedSignature(signal);
      int signalId = obj->metaObject()->indexOfSignal(theSignal);
      if(signalId == -1) {
        return false;
      }
      m_slots[++m_slotId] = Signal(obj, theSignal);
      QMetaObject::connect(obj, signalId, this, QObject::metaObject()->methodCount()+m_slotId);
      return true;
    }
private:
    int m_slotId;
    struct Signal {
      QObject *source;
      QByteArray signal;
      Signal(QObject *src, const QByteArray &ba) : source(src), signal(ba){}
      Signal() : source(0){}
    };
    QHash<int,Signal> m_slots;
};

int main(int argc, char **argv){
  QApplication app(argc, argv);
  SignalTracker tracker;
  QPushButton button("Click me");
  button.setObjectName("some button");
  tracker.connectSignal(&button, "clicked()");
  button.show();
  QLineEdit le;
  le.setObjectName("some line edit");
  tracker.connectSignal(&le, "textChanged(const QString &)");
  le.show();
  return app.exec();
};

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[cafu1007]

What exactly do you mean by "track signals"?

Hi wysota,
what i meanby that is: know when different signal from different or the same object have been triggered to count then or to wait for all of then before doing something, i have no tried yet the example. i let you know when i have.

Thanks for the help.

[minirop]

I've just made a class doing this. It tracks every signals from the object you want to monitor. You can just test the parameter of the emitted (or emittedNameOnly) signal to check only the ones you want.