modelRoot.cxx

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/**
 * PANDA 3D SOFTWARE
 * Copyright (c) Carnegie Mellon University.  All rights reserved.
 *
 * All use of this software is subject to the terms of the revised BSD
 * license.  You should have received a copy of this license along
 * with this source code in a file named "LICENSE."
 *
 * @file modelRoot.cxx
 * @author drose
 * @date 2002-03-16
 */
 
#include "modelRoot.h"
 
TypeHandle ModelRoot::_type_handle;
 
 
/**
 * Returns a newly-allocated Node that is a shallow copy of this one.  It will
 * be a different Node pointer, but its internal data may or may not be shared
 * with that of the original Node.
 */
PandaNode *ModelRoot::
make_copy() const {
  return new ModelRoot(*this);
}
 
/**
 * Tells the BamReader how to create objects of type ModelRoot.
 */
void ModelRoot::
register_with_read_factory() {
  BamReader::get_factory()->register_factory(get_class_type(), make_from_bam);
}
 
/**
 * Writes the contents of this object to the datagram for shipping out to a
 * Bam file.
 */
void ModelRoot::
write_datagram(BamWriter *manager, Datagram &dg) {
  ModelNode::write_datagram(manager, dg);
 
  if (manager->get_file_minor_ver() >= 46) {
    manager->write_handle(dg, TypeHandle::none());
  }
}
 
/**
 * This function is called by the BamReader's factory when a new object of
 * type ModelRoot is encountered in the Bam file.  It should create the
 * ModelRoot and extract its information from the file.
 */
TypedWritable *ModelRoot::
make_from_bam(const FactoryParams &params) {
  ModelRoot *node = new ModelRoot("");
  DatagramIterator scan;
  BamReader *manager;
 
  parse_params(params, scan, manager);
  node->fillin(scan, manager);
 
  return node;
}
 
/**
 * This internal function is called by make_from_bam to read in all of the
 * relevant data from the BamFile for the new ModelRoot.
 */
void ModelRoot::
fillin(DatagramIterator &scan, BamReader *manager) {
  ModelNode::fillin(scan, manager);
 
  if (manager->get_file_minor_ver() >= 46) {
    manager->read_handle(scan);
  }
}