panda3d/direct/src/plugin/p3dPythonMain.cxx

// Filename: p3dPythonMain.cxx
// Created by:  drose (29Aug09)
//
////////////////////////////////////////////////////////////////////
//
// 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."
//
////////////////////////////////////////////////////////////////////

#include "run_p3dpython.h"

#include <iostream>
#include <sstream>
#include <string.h>  // strrchr
using namespace std;
         
#ifdef __APPLE__
#include <Carbon/Carbon.h>
extern "C" { void CPSEnableForegroundOperation(ProcessSerialNumber* psn); }
#endif

////////////////////////////////////////////////////////////////////
//     Function: main
//  Description: This is a trivial main() function that invokes
//               P3DPythonRun.  It's used to build p3dpython.exe,
//               which is the preferred way to run Python in a child
//               process, as a separate executable.
////////////////////////////////////////////////////////////////////
int
main(int argc, char *argv[]) {
  const char *program_name = argv[0];
  const char *archive_file = NULL;
  const char *input_handle_str = NULL;
  const char *output_handle_str = NULL;
  const char *interactive_console_str = NULL;

  if (argc > 1) {
    archive_file = argv[1];
  }
  if (argc > 2) {
    input_handle_str = argv[2];
  }
  if (argc > 3) {
    output_handle_str = argv[3];
  }
  if (argc > 4) {
    interactive_console_str = argv[4];
  }

  if (archive_file == NULL || *archive_file == '\0') {
    cerr << "No archive filename specified on command line.\n";
    return 1;
  }

  FHandle input_handle = invalid_fhandle;
  if (input_handle_str != NULL && *input_handle_str) {
    stringstream stream(input_handle_str);
    stream >> input_handle;
    if (!stream) {
      input_handle = invalid_fhandle;
    }
  }

  FHandle output_handle = invalid_fhandle;
  if (output_handle_str != NULL && *output_handle_str) {
    stringstream stream(output_handle_str);
    stream >> output_handle;
    if (!stream) {
      output_handle = invalid_fhandle;
    }
  }

  bool interactive_console = false;
  if (interactive_console_str != NULL && *interactive_console_str) {
    stringstream stream(interactive_console_str);
    int flag;
    stream >> flag;
    if (!stream.fail()) {
      interactive_console = (flag != 0);
    }
  }

#ifdef __APPLE__
  // In case the application is going to run a wx app, allow it to
  // have access to the desktop.
  ProcessSerialNumber psn;
  
  GetCurrentProcess(&psn);
  CPSEnableForegroundOperation(&psn);
  SetFrontProcess(&psn);
#endif

  if (!run_p3dpython(program_name, archive_file, input_handle, output_handle, 
                     NULL, interactive_console)) {
    cerr << "Failure on startup.\n";
    return 1;
  }
  return 0;
}