Silly question: QGraphicsEllipseItem

[brandont]

I'm just playing around with QGraphicsEllipseItem. I'm trying to do something like this:
Ball.h
@
#ifndef BALL_H
#define BALL_H

#include <QtGui>

class Ball : public QGraphicsEllipseItem
{
Q_OBJECT
public:
explicit Ball(void);
};

#endif // BALL_H
@
ball.cc
@#include <QtGui>
#include "Ball.h"

Ball::Ball(void)
: QGraphicsEllipseItem(85, 0, 30, 30)
{
setBrush(QBrush(Qt::red));
setPen(QPen(Qt::red));
}
@

For some reason I'm getting a "undefined reference to `vtable for Ball'" during the linking stage (gcc 4.4.5). Any ideas what I'm forgetting here? Thanks!

[brandont]

I should add on to this I guess. The documentation specifies some virtual functions under "Reimplemented Public Functions". Do I have to re-re-implement them? Or is there something else I'm missing.

[Frank]

QGraphicsItems are not QObjects, so remove that Q_OBJECT macro and rerun qmake if necessary.

[brandont]

Thanks! It worked.