Resizing QGraphicsItem

[philentropist]

Resizing a QGraphicsItem seems to cause trouble when it is displayed on a QGraphicsView. It causes some nasty artifacts, here's a screenshot:


It looks like Qt is clearing the area in the bounding rectangle of the item right before a paint. Unfortunately, if the bounding rectangle has changed since the last paint, not all the area in the old bounding rectangle gets cleared. Does anyone know a way around this?

[shad]

you need to call prepareGeometryChange() to tell qt that your element is going to change itself.