124 lines
4.2 KiB
C++
124 lines
4.2 KiB
C++
// Filename: fltExternalReference.cxx
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// Created by: drose (30Aug00)
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//
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////////////////////////////////////////////////////////////////////
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#include "fltExternalReference.h"
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#include "fltRecordReader.h"
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#include "fltRecordWriter.h"
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#include "fltHeader.h"
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TypeHandle FltExternalReference::_type_handle;
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////////////////////////////////////////////////////////////////////
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// Function: FltExternalReference::Constructor
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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FltExternalReference::
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FltExternalReference(FltHeader *header) : FltBead(header) {
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_flags = 0;
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}
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////////////////////////////////////////////////////////////////////
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// Function: FltExternalReference::output
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// Access: Public
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// Description: Writes a quick one-line description of the record, but
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// not its children. This is a human-readable
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// description, primarily for debugging; to write a flt
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// file, use FltHeader::write_flt().
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////////////////////////////////////////////////////////////////////
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void FltExternalReference::
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output(ostream &out) const {
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out << "External " << _filename;
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if (!_bead_id.empty()) {
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out << " (" << _bead_id << ")";
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}
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}
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////////////////////////////////////////////////////////////////////
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// Function: FltTexture::get_ref_filename
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// Access: Public
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// Description: Returns the name of the referenced file. If it
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// appears to be a relative filename, it will be
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// converted to the correct full pathname according to
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// the model_path specified in the header.
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////////////////////////////////////////////////////////////////////
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Filename FltExternalReference::
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get_ref_filename() const {
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Filename file(_filename);
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file.resolve_filename(_header->get_model_path());
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return file;
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}
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////////////////////////////////////////////////////////////////////
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// Function: FltExternalReference::extract_record
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// Access: Protected, Virtual
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// Description: Fills in the information in this bead based on the
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// information given in the indicated datagram, whose
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// opcode has already been read. Returns true on
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// success, false if the datagram is invalid.
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////////////////////////////////////////////////////////////////////
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bool FltExternalReference::
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extract_record(FltRecordReader &reader) {
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if (!FltBead::extract_record(reader)) {
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return false;
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}
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nassertr(reader.get_opcode() == FO_external_ref, false);
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DatagramIterator &iterator = reader.get_iterator();
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string name = iterator.get_fixed_string(200);
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iterator.skip_bytes(1 + 1);
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iterator.skip_bytes(2); // Undocumented additional padding.
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_flags = iterator.get_be_uint32();
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iterator.skip_bytes(2);
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iterator.skip_bytes(2); // Undocumented additional padding.
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_filename = name;
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if (!name.empty() && name[name.length() - 1] == '>') {
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// Extract out the bead name.
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size_t open = name.rfind('<');
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if (open != string::npos) {
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_filename = name.substr(0, open);
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_bead_id = name.substr(open + 1, name.length() - open - 2);
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}
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}
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check_remaining_size(iterator);
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return true;
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}
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////////////////////////////////////////////////////////////////////
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// Function: FltExternalReference::build_record
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// Access: Protected, Virtual
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// Description: Fills up the current record on the FltRecordWriter with
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// data for this record, but does not advance the
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// writer. Returns true on success, false if there is
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// some error.
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////////////////////////////////////////////////////////////////////
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bool FltExternalReference::
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build_record(FltRecordWriter &writer) const {
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if (!FltBead::build_record(writer)) {
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return false;
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}
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writer.set_opcode(FO_external_ref);
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Datagram &datagram = writer.update_datagram();
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string name = _filename;
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if (!_bead_id.empty()) {
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name += "<" + _bead_id + ">";
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}
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datagram.add_fixed_string(name.substr(0, 199), 200);
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datagram.pad_bytes(1 + 1);
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datagram.pad_bytes(2); // Undocumented additional padding.
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datagram.add_be_uint32(_flags);
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datagram.pad_bytes(2);
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datagram.pad_bytes(2); // Undocumented additional padding.
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return true;
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}
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