// Set the value of one of the node fields.
void VrmlNodeGroup::setField(const char *fieldName,
const VrmlField &fieldValue)
{
if
TRY_FIELD(bboxCenter, SFVec3f)
else if
TRY_FIELD(bboxSize, SFVec3f)
else if (!strcmp(fieldName, "children"))
{
if (fieldValue.toMFNode())
{
for (int i = 0; i < d_children.size(); i++)
{
if (d_children[i])
{
d_children[i]->decreaseTraversalForce();
d_children[i]->parentList.remove(this);
}
else
{
cerr << "VrmlNodeGroup::setField(children): had NULL child" << endl;
}
}
d_children = (VrmlMFNode &)fieldValue;
for (int i = 0; i < d_children.size(); i++)
{
VrmlNode *child = d_children[i];
if (child == NULL)
{
continue;
}
child->parentList.push_back(this);
if (child->getTraversalForce() > 0)
{
forceTraversal(false, child->getTraversalForce());
}
}
}
else
System::the->error("Invalid type (%s) for %s field of %s node (expected %s).\n",
fieldValue.fieldTypeName(), "children", nodeType()->getName(), "MFNode");
}
else
VrmlNodeChild::setField(fieldName, fieldValue);
}
void VrmlNodeGroup::addChildren(const VrmlMFNode &children)
{
int nNow = d_children.size();
int n = children.size();
for (int i = 0; i < n; ++i)
{
VrmlNode *child = children[i];
if (child == NULL)
{
continue;
}
child->parentList.push_back(this);
if (child->getTraversalForce() > 0)
{
forceTraversal(false, child->getTraversalForce());
}
VrmlNodeProto *p = 0;
// Add legal children and un-instantiated EXTERNPROTOs
// Is it legal to add null children nodes?
if (child == 0 || child->toChild() || ((p = child->toProto()) != 0 && p->size() == 0))
{
d_children.addNode(child);
if (child)
{
child->addToScene(d_scene, d_relative.get());
child->accumulateTransform(d_parentTransform);
}
}
else
System::the->error("Error: Attempt to add a %s node as a child of a %s node.\n",
child->nodeType()->getName(), nodeType()->getName());
}
if (nNow != d_children.size())
{
//??eventOut( d_scene->timeNow(), "children_changed", d_children );
setModified();
}
}