command_line.cxx

   1 //  $Id: command_line.cxx,v 1.8 2003/07/26 14:43:56 grumbel Exp $
   2 //
   3 //  Construo - A wire-frame construction gamee
   4 //  Copyright (C) 2002 Ingo Ruhnke <grumbel@gmx.de>
   5 //
   6 //  This program is free software; you can redistribute it and/or
   7 //  modify it under the terms of the GNU General Public License
   8 //  as published by the Free Software Foundation; either version 2
   9 //  of the License, or (at your option) any later version.
  10 //
  11 //  This program is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //  GNU General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU General Public License
  17 //  along with this program; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19
  20 #include <config.h>
  21 #include <iostream>
  22 #include <stdlib.h>
  23 #include <stdio.h>
  24 #include <string.h>
  25 #include "settings.hxx"
  26 #include "command_line.hxx"
  27
  28 void
  29 CommandLine::error (const std::string& msg)
  30 {
  31   std::cout << "CommandLine parse failure!" << std::endl;
  32   std::cout << "CommandLine: " << msg << std::endl;
  33   exit(EXIT_FAILURE);
  34 }
  35
  36 void
  37 CommandLine::parse (int argc, char** argv)
  38 {
  39   // FIXME: Replace this with getopt_long() or argp()
  40   for (int i = 1; i < argc; ++i) // Skip Programm name
  41     {
  42       //std::cout << "Arg: " << argv[i] << std::endl;
  43
  44       if (argv[i][0] == '-') // Argument is an option
  45         {
  46           if (strcmp(argv[i], "--fullscreen") == 0
  47               || strcmp(argv[i], "-f") == 0)
  48             {
  49               settings.fullscreen = true;
  50             }
  51           else if (strcmp(argv[i], "--version") == 0
  52                    || strcmp(argv[i], "-v") == 0)
  53             {
  54               print_version ();
  55               exit (EXIT_SUCCESS);
  56             }
  57           else if (strcmp(argv[i], "--help") == 0
  58               || strcmp(argv[i], "-h") == 0)
  59             {
  60               print_help ();
  61               exit (EXIT_SUCCESS);
  62             }
  63           else if (strcmp(argv[i], "--disable-alphablending") == 0)
  64             {
  65               settings.alphablending = false;
  66             }
  67           else if (strcmp(argv[i], "--disable-antialiasing") == 0
  68                    || strcmp(argv[i], "-d") == 0)
  69             {
  70               settings.antialiasing = false;
  71             }
  72           else if (strcmp(argv[i], "--disable-thicklines") == 0
  73                    || strcmp(argv[i], "-l") == 0)
  74             {
  75               settings.thick_lines = false;
  76             }
  77           else if (strcmp(argv[i], "--disable-doublebuffer") == 0)
  78             {
  79               settings.doublebuffer = false;
  80             }
  81           else if (strcmp(argv[i], "--datadir") == 0)
  82             {
  83               settings.datadir = argv[++i];
  84             }
  85           else if (strcmp(argv[i], "-g") == 0
  86                    || strcmp(argv[i], "--geometry") == 0)
  87             {
  88               if (++i < argc)
  89                 {
  90                   char c;
  91                   if (sscanf(argv[i], "%d%c%d",
  92                              &settings.screen_width, &c, &settings.screen_height) != 3 && c != 'x')
  93                     {
  94                       error ("geometry string must WIDTHxHEIGHT");
  95                     }
  96                 }
  97               else
  98                 {
  99                   error ("-g/--geometry is missing an argument");
 100                 }
 101             }
 102           else
 103             {
 104               error (std::string("Unknown option: ") + argv[i]);
 105             }
 106         }
 107       else
 108         {
 109           if (!settings.startup_file.empty())
 110             {
 111               error ("Only one filename can be given");
 112             }
 113           else
 114             {
 115               settings.startup_file = argv[i];
 116             }
 117         }
 118     }
 119 }
 120
 121 void
 122 CommandLine::print_help ()
 123 {
 124   std::cout << "Construo "VERSION"\n\n"
 125             << "Usage: construo [OPTIONS] [FILENAME]\n\n"
 126             << "  -h, --help                  display this help text\n"
 127             << "  -v,--version                Print version number of the programm\n"
 128             << "  -f, --fullscreen            switch to fullscreen mode if available\n"
 129             << "  -g, --geometry WIDTHxHEIGHT switch resolution to WIDTH and HEIGHT\n"
 130             << "  -d, --disable-antialiasing  Switch into non antialiased mode\n"
 131             << "  -l, --disable-thicklines    Disable thick (slow) line drawing\n"
 132             << "  --disable-doublebuffer  disable the double buffer (might cause flicker)\n"
 133             << "  --disable-alphablending     Switch into non alphablended mode\n"
 134             << "  --datadir DIR               Set the datadir of Construo to DIR\n"
 135             << std::endl;
 136 }
 137
 138 void
 139 CommandLine::print_version ()
 140 {
 141   std::cout << "Construo "VERSION"\n"
 142             << "Written by Ingo Ruhnke <grumbel@gmx.de>\n\n"
 143             << "Copyright (C) 2002 Ingo Ruhnke <grumbel@gmx.de>\n"
 144             << "This is free software; see the source for copying conditions.  There is NO\n"
 145             << "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE\n";
 146 }
 147
 148 /* EOF */
 149