111 lines
2.8 KiB
C++
111 lines
2.8 KiB
C++
/**
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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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* @file dataNodeTransmit.cxx
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* @author drose
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* @date 2002-03-11
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*/
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#include "dataNodeTransmit.h"
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#include "bamReader.h"
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#include "bamWriter.h"
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TypeHandle DataNodeTransmit::_type_handle;
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/**
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*
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*/
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DataNodeTransmit::
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~DataNodeTransmit() {
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}
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/**
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* Ensures that the given index number exists in the data array.
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*/
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void DataNodeTransmit::
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slot_data(int index) {
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nassertv(index < 1000);
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while (index >= (int)_data.size()) {
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_data.push_back(EventParameter());
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}
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}
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/**
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* Tells the BamReader how to create objects of type Lens.
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*/
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void DataNodeTransmit::
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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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* Writes the contents of this object to the datagram for shipping out to a
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* Bam file.
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*/
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void DataNodeTransmit::
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write_datagram(BamWriter *manager, Datagram &dg) {
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TypedWritable::write_datagram(manager, dg);
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dg.add_uint16(_data.size());
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Data::const_iterator di;
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for (di = _data.begin(); di != _data.end(); ++di) {
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const EventParameter ¶m = (*di);
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TypedWritableReferenceCount *ptr = param.get_ptr();
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manager->write_pointer(dg, ptr);
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}
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}
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/**
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* Receives an array of pointers, one for each time manager->read_pointer()
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* was called in fillin(). Returns the number of pointers processed.
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*/
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int DataNodeTransmit::
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complete_pointers(TypedWritable **p_list, BamReader *manager) {
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int pi = TypedWritable::complete_pointers(p_list, manager);
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Data::iterator di;
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for (di = _data.begin(); di != _data.end(); ++di) {
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(*di) = EventParameter(DCAST(TypedWritableReferenceCount, p_list[pi++]));
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}
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return pi;
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}
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/**
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* This function is called by the BamReader's factory when a new object of
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* type Lens is encountered in the Bam file. It should create the Lens and
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* extract its information from the file.
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*/
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TypedWritable *DataNodeTransmit::
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make_from_bam(const FactoryParams ¶ms) {
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DataNodeTransmit *xmit = new DataNodeTransmit;
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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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xmit->fillin(scan, manager);
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return xmit;
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}
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/**
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* This internal function is called by make_from_bam to read in all of the
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* relevant data from the BamFile for the new Lens.
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*/
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void DataNodeTransmit::
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fillin(DatagramIterator &scan, BamReader *manager) {
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TypedWritable::fillin(scan, manager);
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int num_params = scan.get_uint16();
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_data.reserve(num_params);
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for (int i = 0; i < num_params; i++) {
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manager->read_pointer(scan);
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_data.push_back(EventParameter());
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}
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}
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