void QGIViewPart::toggleCosmeticLines(bool state)
{
QList<QGraphicsItem*> items = childItems();
for(QList<QGraphicsItem*>::iterator it = items.begin(); it != items.end(); it++) {
QGIEdge *edge = dynamic_cast<QGIEdge *>(*it);
if(edge) {
edge->setCosmetic(state);
}
}
}
