/**
* Set node content as replacement for the pickingGeometry field. This checks only for basic
* geometry handling. If a concrete node needs a specific set of nodes, it should override this
* method to check.
*
* @param app The new appearance. null will act like delete
* @throws InvalidFieldValueException The node does not match the required type.
*/
public void setPickingGeometry(VRMLNodeType child) throws InvalidFieldValueException {
VRMLGeometryNodeType node;
VRMLNodeType old_node;
if (pPickingGeometry != null) old_node = pPickingGeometry;
else old_node = vfPickingGeometry;
if (child instanceof VRMLProtoInstance) {
VRMLNodeType impl = ((VRMLProtoInstance) child).getImplementationNode();
pPickingGeometry = (VRMLProtoInstance) child;
while ((impl != null) && (impl instanceof VRMLProtoInstance))
impl = ((VRMLProtoInstance) impl).getImplementationNode();
if ((impl != null) && !(impl instanceof VRMLGeometryNodeType))
throw new InvalidFieldValueException(GEOMETRY_PROTO_MSG);
String name = impl.getVRMLNodeName();
if (!validGeometryNodeNames.contains(name))
throw new InvalidFieldValueException(PICK_GEOM_TYPE_MSG);
node = (VRMLGeometryNodeType) impl;
} else if (child instanceof VRMLGeometryNodeType) {
String name = child.getVRMLNodeName();
if (!validGeometryNodeNames.contains(name))
throw new InvalidFieldValueException(PICK_GEOM_TYPE_MSG);
pPickingGeometry = null;
node = (VRMLGeometryNodeType) child;
} else {
throw new InvalidFieldValueException(GEOMETRY_NODE_MSG);
}
vfPickingGeometry = (VRMLGeometryNodeType) node;
if (child != null) updateRefs(child, true);
if (old_node != null) updateRefs(old_node, false);
if (!inSetup) {
if (old_node != null) stateManager.registerRemovedNode(old_node);
if (child != null) stateManager.registerAddedNode(child);
hasChanged[FIELD_PICKING_GEOMETRY] = true;
fireFieldChanged(FIELD_PICKING_GEOMETRY);
}
}
/**
* Check to make sure the picking target node being added is of the correct type. If not, issue an
* error.
*
* @param target The node to check that it follows the requirements
* @throws InvalidFieldValueException The node is not a grouping or shape node
*/
protected void checkPickTargetType(VRMLNodeType target) throws InvalidFieldValueException {
if ((target instanceof VRMLGroupingNodeType) || (target instanceof VRMLShapeNodeType)) return;
if (!(target instanceof VRMLProtoInstance))
throw new InvalidFieldValueException(
"pickTarget node not a group or shape node type: " + target.getVRMLNodeName());
VRMLProtoInstance proto = (VRMLProtoInstance) target;
VRMLNodeType node = proto.getImplementationNode();
while ((node != null) && (node instanceof VRMLProtoInstance))
node = ((VRMLProtoInstance) node).getImplementationNode();
if ((node != null)
&& (!(node instanceof VRMLGroupingNodeType) && !(node instanceof VRMLShapeNodeType)))
throw new InvalidFieldValueException(
"pickTarget proto instance not a group or shape node type: " + target.getVRMLNodeName());
}
/**
* Add a single child node to the list of available children. Override to
* provide.renderer-specific behaviour, but remember to also call this implementation too.
*
* @param node The node to add
*/
protected void addChildNode(VRMLNodeType node) {
if (node instanceof VRMLProtoInstance) {
VRMLNodeType impl = ((VRMLProtoInstance) node).getImplementationNode();
// Walk down the proto impl looking for the real node to check it
// is the right type.
while ((impl != null) && (impl instanceof VRMLProtoInstance))
impl = ((VRMLProtoInstance) impl).getImplementationNode();
if ((impl != null) && !(impl instanceof VRMLWorldRootChildNodeType))
throw new InvalidFieldValueException(NON_CHILD_PROTO_MSG + node.getVRMLNodeName());
} else if (node != null && !(node instanceof VRMLWorldRootChildNodeType)) {
throw new InvalidFieldValueException(NON_CHILD_NODE_MSG + node.getVRMLNodeName());
}
if (node != null) updateRefs(node, true);
vfChildren.add(node);
childCount++;
if (!inSetup) stateManager.registerAddedNode(node);
}