From kde-devel  Sun Apr 22 15:57:05 2001
From: Kevin Krammer <kevin.krammer () gmx ! at>
Date: Sun, 22 Apr 2001 15:57:05 +0000
To: kde-devel
Subject: Re: Newbie Developer to KDE
X-MARC-Message: https://marc.info/?l=kde-devel&m=98795522729683

How about this?

class NotifySource : public QObject
{
//other stuff
  public signal:
    void notify(QString id, QObject* sender);
};

NotifySource::NotifySource(...)
{
  NotifyCenter* center =3D NotifyCenter;
  connect (this, SIGNAL(notify(QString, QObject*), center,=20
SLOT(slotNotify(QString, QObject*)));
}

whenever NotifySource wants to dispatch a notification it just  does:
emit notfy("AnEventName", this);

class NotifyCenter : QObject
{
  public:
    registerListener(QString eventID, NotifyListener* listener);
  public slots:
   void slotNotify(QString, QObject*);
};=20

class NotifyListener
{
  public slots:
    slotProcessNotification(Notification*);
}

NotifyListener::NotifyListener()
{
  NotifyCenter* center =3D ....
  center->registerListener("AnEventID", this);
}

NotifyCenter keeps a mapping of IDs to lists of NotifyListeners and on=20
receiving an event connects to the slotProcessNotification(Notification*)=
=20
slot of the appropirate listeners, emits the notification(Notification*) =
and=20
signal and disconnects afterwards.

Hope this helps,
Kevin

--=20
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Kevin Krammer <kevin.krammer@gmx.at>
Developer at the Kmud Project http://www.kmud.de/
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
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