Exemplo n.º 1
0
/* Initialize the screen.  */
void
grub_normal_init_page (struct grub_term_output *term)
{
  int msg_len;
  int posx;
  const char *msg = _("GNU GRUB  version %s");
  char *msg_formatted;
  grub_uint32_t *unicode_msg;
  grub_uint32_t *last_position;
 
  grub_term_cls (term);

  msg_formatted = grub_xasprintf (msg, PACKAGE_VERSION);
  if (!msg_formatted)
    return;
 
  msg_len = grub_utf8_to_ucs4_alloc (msg_formatted,
  				     &unicode_msg, &last_position);
  grub_free (msg_formatted);
 
  if (msg_len < 0)
    {
      return;
    }

  posx = grub_getstringwidth (unicode_msg, last_position, term);
  posx = (grub_term_width (term) - posx) / 2;
  grub_term_gotoxy (term, posx, 1);

  grub_print_ucs4 (unicode_msg, last_position, 0, 0, term);
  grub_putcode ('\n', term);
  grub_putcode ('\n', term);
  grub_free (unicode_msg);
}
Exemplo n.º 2
0
static int
grub_print_message_indented_real (const char *msg, int margin_left,
				  int margin_right,
				  struct grub_term_output *term, int dry_run)
{
  grub_uint32_t *unicode_msg;
  grub_uint32_t *last_position;

  int msg_len;
  int ret = 0;

  msg_len = grub_utf8_to_ucs4_alloc (msg, &unicode_msg, &last_position);

  if (msg_len < 0)
    {
      return 0;
    }

  if (dry_run)
    ret = grub_ucs4_count_lines (unicode_msg, last_position, margin_left,
				 margin_right, term);
  else
    grub_print_ucs4 (unicode_msg, last_position, margin_left,
		     margin_right, term);

  grub_free (unicode_msg);

  return ret;
}
Exemplo n.º 3
0
static grub_err_t
grub_cmd_help (grub_extcmd_t ext __attribute__ ((unused)), int argc,
	       char **args)
{
  int cnt = 0;
  char *currarg;

  auto int print_command_info (grub_command_t cmd);
  auto int print_command_help (grub_command_t cmd);

  int print_command_info (grub_command_t cmd)
    {
      if ((cmd->prio & GRUB_PRIO_LIST_FLAG_ACTIVE) &&
	  (cmd->flags & GRUB_COMMAND_FLAG_CMDLINE))
	{
	  struct grub_term_output *term;
	  const char *summary_translated = _(cmd->summary);
	  char *command_help;
	  grub_uint32_t *unicode_command_help;
	  grub_uint32_t *unicode_last_position;
	  			      
	  command_help = grub_xasprintf ("%s %s", cmd->name, summary_translated);
	  if (!command_help)
	    return 1;

	  grub_utf8_to_ucs4_alloc (command_help, &unicode_command_help,
	  			   &unicode_last_position);

	  FOR_ACTIVE_TERM_OUTPUTS(term)
	  {
	    unsigned stringwidth;
	    grub_uint32_t *unicode_last_screen_position;

	    unicode_last_screen_position = unicode_command_help;

	    stringwidth = 0;

	    while (unicode_last_screen_position < unicode_last_position && 
		   stringwidth < ((grub_term_width (term) / 2) - 2))
	      {
		stringwidth
		  += grub_term_getcharwidth (term,
					     *unicode_last_screen_position);
		unicode_last_screen_position++;
	      }

	    grub_print_ucs4 (unicode_command_help,
			     unicode_last_screen_position, term);
	    if (!(cnt % 2))
	      grub_print_spaces (term, grub_term_width (term) / 2
				 - stringwidth);
	  }
	  if (cnt % 2)
	    grub_printf ("\n");
	  cnt++;
	  
	  grub_free (command_help);
	  grub_free (unicode_command_help);
	}
      return 0;
    }

  int print_command_help (grub_command_t cmd)
    {
      if (cmd->prio & GRUB_PRIO_LIST_FLAG_ACTIVE)
	{
	  if (! grub_strncmp (cmd->name, currarg, grub_strlen (currarg)))
	    {
	      if (cnt++ > 0)
		grub_printf ("\n\n");

	      if (cmd->flags & GRUB_COMMAND_FLAG_EXTCMD)
		grub_arg_show_help ((grub_extcmd_t) cmd->data);
	      else
		grub_printf ("%s %s %s\n%s\b", _("Usage:"), cmd->name, _(cmd->summary),
			     _(cmd->description));
	    }
	}
      return 0;
    }

  if (argc == 0)
    {
      grub_command_iterate (print_command_info);
      if (!(cnt % 2))
	grub_printf ("\n");
    }
  else
    {
      int i;

      for (i = 0; i < argc; i++)
	{
	  currarg = args[i];
	  grub_command_iterate (print_command_help);
	}
    }

  return 0;
}
Exemplo n.º 4
0
static grub_err_t
grub_cmd_help (grub_extcmd_t ext __attribute__ ((unused)), int argc,
	       char **args)
{
  int cnt = 0;
  char *currarg;

  if (argc == 0)
    {
      grub_command_t cmd;
      FOR_COMMANDS(cmd)
      {
	if ((cmd->prio & GRUB_PRIO_LIST_FLAG_ACTIVE) &&
	    (cmd->flags & GRUB_COMMAND_FLAG_CMDLINE))
	  {
	    struct grub_term_output *term;
	    const char *summary_translated = _(cmd->summary);
	    char *command_help;
	    grub_uint32_t *unicode_command_help;
	    grub_uint32_t *unicode_last_position;
	  			      
	    command_help = grub_xasprintf ("%s %s", cmd->name, summary_translated);
	    if (!command_help)
	      break;

	    grub_utf8_to_ucs4_alloc (command_help, &unicode_command_help,
				     &unicode_last_position);

	    FOR_ACTIVE_TERM_OUTPUTS(term)
	    {
	      unsigned stringwidth;
	      grub_uint32_t *unicode_last_screen_position;

	      unicode_last_screen_position = unicode_command_help;

	      stringwidth = 0;

	      while (unicode_last_screen_position < unicode_last_position && 
		     stringwidth < ((grub_term_width (term) / 2) - 2))
		{
		  struct grub_unicode_glyph glyph;
		  unicode_last_screen_position 
		    += grub_unicode_aglomerate_comb (unicode_last_screen_position,
						     unicode_last_position
						     - unicode_last_screen_position,
						     &glyph);

		  stringwidth
		    += grub_term_getcharwidth (term, &glyph);
		}

	      grub_print_ucs4 (unicode_command_help,
			       unicode_last_screen_position, 0, 0, term);
	      if (!(cnt % 2))
		grub_print_spaces (term, grub_term_width (term) / 2
				   - stringwidth);
	    }

	    if (cnt % 2)
	      grub_printf ("\n");
	    cnt++;
	  
	    grub_free (command_help);
	    grub_free (unicode_command_help);
	  }
      }
      if (!(cnt % 2))
	grub_printf ("\n");
    }