QObject and copy Constructors

[December]

Hi all,

I am trying to get my head around the model/view way of programming. I am making a simple example using my own class, and have run into a problem. My own class is very simple at this stage, since I'm just trying to get it to work:

class VfAlert : public QObject
{
 Q_OBJECT
 
 public:
	VfAlert( QObject *parent = 0 ) : QObject( parent ) {} 
	VfAlert( const VfAlert &alert );
	QString title;
};
 
class VfAlertListModel : public QAbstractListModel
{
 Q_OBJECT
 
 public:
	VfAlertListModel( const QList<VfAlert> &alerts, QObject *parent = 0 )
		: QAbstractListModel(parent), alertList(alerts) {}
 
//     int rowCount(const QModelIndex &parent = QModelIndex()) const;
//     QVariant data(const QModelIndex &index, int role) const;
//     QVariant headerData(int section, Qt::Orientation orientation,
//                         int role = Qt::DisplayRole) const;
 
 private:
	 QList<VfAlert> alertList;
};

class VfAlert : public QObject
{
 Q_OBJECT

 public:
	VfAlert( QObject *parent = 0 ) : QObject( parent ) {} 
	VfAlert( const VfAlert &alert );
	QString title;
};

class VfAlertListModel : public QAbstractListModel
{
 Q_OBJECT

 public:
	VfAlertListModel( const QList<VfAlert> &alerts, QObject *parent = 0 )
		: QAbstractListModel(parent), alertList(alerts) {}

//     int rowCount(const QModelIndex &parent = QModelIndex()) const;
//     QVariant data(const QModelIndex &index, int role) const;
//     QVariant headerData(int section, Qt::Orientation orientation,
//                         int role = Qt::DisplayRole) const;

 private:
	 QList<VfAlert> alertList;
};

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and the copy constructor for VfAlert:

VfAlert::VfAlert( const VfAlert &alert )
{
 title = alert.title;
 
};

VfAlert::VfAlert( const VfAlert &alert )
{
 title = alert.title;

};

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I had to add the copy constructor because without it, it wouldn't compile.

Now it compiles ok, but I get this warning:

warning: base class 'class QObject' should be explicitly initialized in the copy constructor

That sounds pretty serious, so I'm guessing I shouldn't ignore it, but can't get my head around what exactly I should be doing with a QObject in the copy constructor

Any ideas?

Thanks