Q3CanvasItem * UmlCanvas::collision(const QPoint & p) const
{
Q3CanvasItemList l = collisions(p);
Q3CanvasItemList::ConstIterator it;
Q3CanvasItemList::ConstIterator end = l.end();
ArrowCanvas * arrow = 0;
for (it = l.begin(); it != end; ++it)
if (((*it)->visible()) && // at least not deleted
!isa_alien(*it) &&
!isa_col_msg_dirs(*it)) {
switch ((*it)->rtti()) {
case RTTI_ARROW:
if (arrow == 0)
arrow = (ArrowCanvas *) *it;
break;
case RTTI_LABEL:
return (arrow == 0) ? *it : arrow;
default:
// isa DiagramCanvas
return ((arrow == 0) ||
(small_element(((DiagramCanvas *) *it)->rect()) &&
((DiagramCanvas *) *it)->attached_to(arrow)))
? *it : arrow;
}
}
return arrow;
}
QGraphicsItem * UmlCanvas::collision(const QPoint & p, int except) const
{
QList<QGraphicsItem*> l = items(p);
QList<QGraphicsItem*>::ConstIterator it;
QList<QGraphicsItem*>::ConstIterator end = l.end();
ArrowCanvas * arrow = 0;
for (it = l.begin(); it != end; ++it)
if (((*it)->isVisible()) && // at least not deleted
!isa_alien(*it)
&&
!isa_col_msg_dirs(*it)
) {
int k = (*it)->type();
if (k != except) {
switch (k) {
case RTTI_ARROW:
if (arrow == 0)
arrow = (ArrowCanvas *) *it;
break;
case RTTI_LABEL:
return (arrow == 0) ? *it : arrow;
default:
// isa DiagramCanvas
return ((arrow == 0) ||
(small_element(((DiagramCanvas *) *it)->rect()) &&
((DiagramCanvas *) *it)->attached_to(arrow)))
? *it : arrow;
}
}
}
return arrow;
}
