font/font_cmd.c

   1 /* font_cmd.c - Font command definition. */
   2 /*
   3  *  GRUB  --  GRand Unified Bootloader
   4  *  Copyright (C) 2003,2005,2006,2007,2008,2009  Free Software Foundation, Inc.
   5  *
   6  *  GRUB is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  GRUB 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 GRUB.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <grub/font.h>
  21 #include <grub/dl.h>
  22 #include <grub/misc.h>
  23 #include <grub/command.h>
  24
  25 static grub_err_t
  26 loadfont_command (grub_command_t cmd __attribute__ ((unused)),
  27                   int argc,
  28                   char **args)
  29 {
  30   if (argc == 0)
  31     return grub_error (GRUB_ERR_BAD_ARGUMENT, "no font specified");
  32
  33   while (argc--)
  34     if (grub_font_load (*args++) != 0)
  35       return GRUB_ERR_BAD_FONT;
  36
  37   return GRUB_ERR_NONE;
  38 }
  39
  40 static grub_err_t
  41 lsfonts_command (grub_command_t cmd __attribute__ ((unused)),
  42                  int argc __attribute__ ((unused)),
  43                  char **args __attribute__ ((unused)))
  44 {
  45   struct grub_font_node *node;
  46
  47   grub_printf ("Loaded fonts:\n");
  48   for (node = grub_font_list; node; node = node->next)
  49     {
  50       grub_font_t font = node->value;
  51       grub_printf ("%s\n", grub_font_get_name (font));
  52     }
  53
  54   return GRUB_ERR_NONE;
  55 }
  56
  57 static grub_command_t cmd_loadfont, cmd_lsfonts;
  58
  59 GRUB_MOD_INIT(font_manager)
  60 {
  61   grub_font_loader_init ();
  62
  63   cmd_loadfont =
  64     grub_register_command ("loadfont", loadfont_command,
  65                          "loadfont FILE...",
  66                          "Specify one or more font files to load.");
  67   cmd_lsfonts =
  68     grub_register_command ("lsfonts", lsfonts_command,
  69                            0, "List the loaded fonts.");
  70 }
  71
  72 GRUB_MOD_FINI(font_manager)
  73 {
  74   /* TODO: Determine way to free allocated resources.
  75      Warning: possible pointer references could be in use.  */
  76
  77   grub_unregister_command (cmd_loadfont);
  78   grub_unregister_command (cmd_lsfonts);
  79 }