109 lines
3.9 KiB
C++
109 lines
3.9 KiB
C++
// Filename: paramNodePath.cxx
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// Created by: rdb (25Feb15)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) Carnegie Mellon University. All rights reserved.
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//
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// All use of this software is subject to the terms of the revised BSD
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// license. You should have received a copy of this license along
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// with this source code in a file named "LICENSE."
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//
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////////////////////////////////////////////////////////////////////
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#include "paramNodePath.h"
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#include "dcast.h"
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#include "pandaNode.h"
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TypeHandle ParamNodePath::_type_handle;
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////////////////////////////////////////////////////////////////////
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// Function: ParamNodePath::output
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// Access: Published, Virtual
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// Description:
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////////////////////////////////////////////////////////////////////
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void ParamNodePath::
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output(ostream &out) const {
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out << "node path " << _node_path;
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}
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////////////////////////////////////////////////////////////////////
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// Function: ParamNodePath::register_with_read_factory
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// Access: Public, Static
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// Description: Tells the BamReader how to create objects of type
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// ParamValue.
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////////////////////////////////////////////////////////////////////
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void ParamNodePath::
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register_with_read_factory() {
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BamReader::get_factory()->register_factory(get_class_type(), make_from_bam);
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}
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////////////////////////////////////////////////////////////////////
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// Function: ParamNodePath::write_datagram
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// Access: Public, Virtual
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// Description: Writes the contents of this object to the datagram
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// for shipping out to a Bam file.
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////////////////////////////////////////////////////////////////////
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void ParamNodePath::
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write_datagram(BamWriter *manager, Datagram &dg) {
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ParamValueBase::write_datagram(manager, dg);
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// We can't store a NodePath, so we store a pointer to the
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// underlying node, and pray that there is an unambiguous path
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// from the root to it.
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if (_node_path.is_empty()) {
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manager->write_pointer(dg, NULL);
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} else {
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manager->write_pointer(dg, _node_path.node());
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}
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}
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////////////////////////////////////////////////////////////////////
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// Function: ParamNodePath::complete_pointers
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// Access: Public, Virtual
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// Description: Receives an array of pointers, one for each time
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// manager->read_pointer() was called in fillin().
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// Returns the number of pointers processed.
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////////////////////////////////////////////////////////////////////
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int ParamNodePath::
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complete_pointers(TypedWritable **p_list, BamReader *manager) {
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int pi = ParamValueBase::complete_pointers(p_list, manager);
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_node_path = NodePath(DCAST(PandaNode, p_list[pi++]));
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return pi;
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}
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////////////////////////////////////////////////////////////////////
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// Function: ParamNodePath::make_from_bam
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// Access: Protected, Static
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// Description: This function is called by the BamReader's factory
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// when a new object of type ParamValue is encountered
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// in the Bam file. It should create the ParamValue
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// and extract its information from the file.
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////////////////////////////////////////////////////////////////////
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TypedWritable *ParamNodePath::
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make_from_bam(const FactoryParams ¶ms) {
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ParamNodePath *param = new ParamNodePath;
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DatagramIterator scan;
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BamReader *manager;
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parse_params(params, scan, manager);
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param->fillin(scan, manager);
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return param;
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}
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////////////////////////////////////////////////////////////////////
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// Function: ParamNodePath::fillin
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// Access: Protected
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// Description: This internal function is called by make_from_bam to
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// read in all of the relevant data from the BamFile for
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// the new ParamValue.
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////////////////////////////////////////////////////////////////////
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void ParamNodePath::
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fillin(DatagramIterator &scan, BamReader *manager) {
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ParamValueBase::fillin(scan, manager);
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manager->read_pointer(scan);
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}
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