GraphicsPixmapItem follow a GraphicsPixmapItem

[SlaynX]

Hi there,

I got 2 QGraphicsPixmapItem which both are separated classes (let say A and B). Object A is moving downwards in the scene. So when user clicks A, object B position should appear exactly at position A in the scene. However, I finding difficulties to allow B to follow A while Object A is constantly moving downwards. Any suggestion on how to do this? Thanks in advance.

[Rachol]

if you want B to jump in a place where A is, then just install event Filter on A and wait for mouse press event.

If you want B to follow A afetr it's been clicked, the best would be to subclass GraphicsPixmapItem and modify itemChange method and mouse events. You can refer to the documentation where actually such thing is already done.

QVariant QGraphicsItem::itemChange ( GraphicsItemChange change, const QVariant & value ) [virtual protected]

You could have a custom signals and slots in both items and use them to connect the position change event.

[SlaynX]

Is there a real life example for this, I did read the docs but I'm still kinda blur on how to implement it. According to the docs, it just returned values.