cell type() const {
cell tag = TAG(value_);
if(tag == OBJECT_TYPE)
return untagged()->h.hi_tag();
else
return tag;
}
void TagViewer::mousePressEvent(
QMouseEvent* e
)
{
if( e->button() != Qt::LeftButton ) {
return;
}
if( tagging_ ) {
tag_start_ = e->pos();
enforce_boundary_conditions( tag_start_ );
tag_end_ = tag_start_;
} else if( untagging_ ) {
// searches the closest rectangle to the picked point
// removes it only if point is deemed close enough
// there won't be tons of label per image, so a brute force search
// is perfectly acceptable, no need to go into quad-tree
float scale_f = scale_factor();
QRect rect_found;
QString label_found;
int distance_min = 200. / scale_f;
QPoint p = e->pos();
enforce_boundary_conditions( p );
p /= scale_f;
for( QList<TagDisplayElement>::iterator tag_itr = elts_.begin(); tag_itr != elts_.end(); ++tag_itr ) {
const TagDisplayElement& tag = *tag_itr;
const QList<QRect>& bbox = tag._bbox;
for( QList<QRect>::const_iterator bbox_itr = bbox.begin(); bbox_itr != bbox.end(); ++bbox_itr ) {
int d = shortest_distance( p, *bbox_itr );
if( d < distance_min ) {
distance_min = d;
label_found = tag._label;
rect_found = *bbox_itr;
}
}
}
if( !label_found.isEmpty() && rect_found.isValid() ) {
emit( untagged( label_found, rect_found ) );
}
}
}
TYPE *operator->() const { return untagged(); }
TYPE *untag_check(factorvm *myvm) const {
if(TYPE::type_number != TYPE_COUNT && !type_p(TYPE::type_number))
myvm->type_error(TYPE::type_number,value_);
return untagged();
}
Type *untag_check(factor_vm *parent) const
{
if(!type_p())
parent->type_error(Type::type_number,value_);
return untagged();
}