Disabling Wheel Event in a QGraphicsView ?

Walux

Hi Qt community ,

How to disable the wheel event in a QGraphicsView ?

Sorry for the lazy post , and thanks for your comprehension ;)

Joel Bodenmann

As there is no property to enable or disable it you have to create a subclass and overwrite the implementation of the corresponding wheelEvent(). Something along the lines of:

class MyGraphicsView : public QGraphicsView
{
	Q_OBJECT

public:
	explicit MyGraphicsView(QWidget* parent = nullptr) : QGraphicsView(parent) {}

protected:
	virtual void wheelEvent(QWheelEvent* event) Q_DECL_OVERRIDE {
		event->accept();
	}
};

Walux

@Joel-Bodenmann

Thanks for this unique answer .

Actually , i figured out myself an another solution :

void Scene::wheelEvent(QGraphicsSceneWheelEvent *event)
{
    event->accept();
}

Probably not as good , so i'll use yours .

topic->setAsSolved(true);

raven-worx

@Walux said:

Probably not as good , so i'll use yours .

just for clarification:
Actually this is exactly the same approach, just a step later.
(After the graphics view translated and forwarded it's received events to it's scene).