release/src/router/libncurses/ncurses/base/lib_hline.c

   1 /****************************************************************************
   2  * Copyright (c) 1998-2009,2010 Free Software Foundation, Inc.              *
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  28
  29 /****************************************************************************
  30  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
  31  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
  32  ****************************************************************************/
  33
  34 /*
  35 **      lib_hline.c
  36 **
  37 **      The routine whline().
  38 **
  39 */
  40
  41 #include <curses.priv.h>
  42
  43 MODULE_ID("$Id: lib_hline.c,v 1.13 2010/12/19 01:48:39 tom Exp $")
  44
  45 NCURSES_EXPORT(int)
  46 whline(WINDOW *win, chtype ch, int n)
  47 {
  48     int code = ERR;
  49     int start;
  50     int end;
  51
  52     T((T_CALLED("whline(%p,%s,%d)"), (void *) win, _tracechtype(ch), n));
  53
  54     if (win) {
  55         struct ldat *line = &(win->_line[win->_cury]);
  56         NCURSES_CH_T wch;
  57
  58         start = win->_curx;
  59         end = start + n - 1;
  60         if (end > win->_maxx)
  61             end = win->_maxx;
  62
  63         CHANGED_RANGE(line, start, end);
  64
  65         if (ch == 0)
  66             SetChar2(wch, ACS_HLINE);
  67         else
  68             SetChar2(wch, ch);
  69         wch = _nc_render(win, wch);
  70
  71         while (end >= start) {
  72             line->text[end] = wch;
  73             end--;
  74         }
  75
  76         _nc_synchook(win);
  77         code = OK;
  78     }
  79     returnCode(code);
  80 }