Panda3D

vrmlTrans.cxx

00001 // Filename: vrmlTrans.cxx
00002 // Created by:  drose (01Oct04)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #include "vrmlTrans.h"
00016 #include "parse_vrml.h"
00017 #include "pystub.h"
00018 
00019 ////////////////////////////////////////////////////////////////////
00020 //     Function: VRMLTrans::Constructor
00021 //       Access: Public
00022 //  Description:
00023 ////////////////////////////////////////////////////////////////////
00024 VRMLTrans::
00025 VRMLTrans() :
00026   WithOutputFile(true, true, false)
00027 {
00028   // Indicate the extension name we expect the user to supply for
00029   // output files.
00030   _preferred_extension = ".wrl";
00031 
00032   set_program_description
00033     ("This program reads a VRML 2.0 file (.wrl) and writes an "
00034      "essentially equivalent .wrl file.  It is primarily useful for "
00035      "debugging the VRML parser that is part of the Pandatool library.");
00036 
00037   clear_runlines();
00038   add_runline("[opts] input.wrl > output.wrl");
00039   add_runline("[opts] input.wrl output.wrl");
00040   add_runline("[opts] -o output.wrl input.wrl");
00041 
00042   add_option
00043     ("o", "filename", 0,
00044      "Specify the filename to which the resulting .wrl file will be written.  "
00045      "If this option is omitted, the last parameter name is taken to be the "
00046      "name of the output file.",
00047      &VRMLTrans::dispatch_filename, &_got_output_filename, &_output_filename);
00048 }
00049 
00050 
00051 ////////////////////////////////////////////////////////////////////
00052 //     Function: VRMLTrans::run
00053 //       Access: Public
00054 //  Description:
00055 ////////////////////////////////////////////////////////////////////
00056 void VRMLTrans::
00057 run() {
00058   nout << "Reading " << _input_filename << "\n";
00059 
00060   VrmlScene *scene = parse_vrml(_input_filename);
00061   if (scene == (VrmlScene *)NULL) {
00062     nout << "Unable to read.\n";
00063     exit(1);
00064   }
00065 
00066   get_output() << *scene << "\n";
00067 }
00068 
00069 
00070 ////////////////////////////////////////////////////////////////////
00071 //     Function: VRMLTrans::handle_args
00072 //       Access: Protected, Virtual
00073 //  Description:
00074 ////////////////////////////////////////////////////////////////////
00075 bool VRMLTrans::
00076 handle_args(ProgramBase::Args &args) {
00077   if (!check_last_arg(args, 1)) {
00078     return false;
00079   }
00080 
00081   if (args.empty()) {
00082     nout << "You must specify the .wrl file to read on the command line.\n";
00083     return false;
00084 
00085   } else if (args.size() != 1) {
00086     nout << "You must specify only one .wrl file to read on the command line.\n";
00087     return false;
00088   }
00089 
00090   _input_filename = args[0];
00091 
00092   return true;
00093 }
00094 
00095 
00096 int main(int argc, char *argv[]) {
00097   // A call to pystub() to force libpystub.so to be linked in.
00098   pystub();
00099 
00100   VRMLTrans prog;
00101   prog.parse_command_line(argc, argv);
00102   prog.run();
00103   return 0;
00104 }
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