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screen.c

/**************************************************************************************************
      $Header: /pub/cvsroot/yencode/lib/screen.c,v 1.4 2002/03/10 16:22:19 bboy Exp $

      Copyright (C) 2002  Don Moore <bboy@bboy.net>

      This program is free software; you can redistribute it and/or modify
      it under the terms of the GNU General Public License as published by
      the Free Software Foundation; either version 2 of the License, or
      (at Your option) any later version.

      This program is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      GNU General Public License for more details.

      You should have received a copy of the GNU General Public License
      along with this program; if not, write to the Free Software
      Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
**************************************************************************************************/

#include "misc.h"

#ifndef TIOCGWINSZ
#include <sys/ioctl.h>
#endif


/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
      GET_SCREEN_WIDTH
      Returns the screen width.  Defaults if called from a non-terminal.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
int
get_screen_width(void)
{
      struct winsize size;

      if (!isatty(STDIN_FILENO))
            return (0);
      if (ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&size) < 0)
            return (0);

      return (size.ws_col);
}
/*--- get_screen_width() ------------------------------------------------------------------------*/


/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
      CHARLINE
      Outputs a line of characters the width of the screen.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
inline void
charline(char c)
{
      int ct, width = get_screen_width();

      for (ct = 0; ct < width-1; ct++)
            putc(c, stdout);
      puts("");
}
/*--- charline() --------------------------------------------------------------------------------*/

/* vi:set ts=3: */

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