usr/src/lib/libcurses/screen/whline.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1988 AT&T */
  28 /*        All Rights Reserved   */
  29
  30 /*
  31  * University Copyright- Copyright (c) 1982, 1986, 1988
  32  * The Regents of the University of California
  33  * All Rights Reserved
  34  *
  35  * University Acknowledgment- Portions of this document are derived from
  36  * software developed by the University of California, Berkeley, and its
  37  * contributors.
  38  */
  39
  40 #pragma ident   "%Z%%M% %I%     %E% SMI"
  41
  42 #include        <sys/types.h>
  43 #include        <stdlib.h>
  44 #include        "curses_inc.h"
  45
  46 int
  47 whline(WINDOW *win, chtype horch, int num_chars)
  48 {
  49         short   cury = win->_cury, curx = win->_curx;
  50         chtype  a, *fp = &(win->_y[cury][curx]);
  51
  52         if (num_chars <= 0)
  53                 return (ERR);
  54
  55         if (num_chars > win->_maxx - curx)
  56                 num_chars = win->_maxx - curx;
  57         if (horch == 0)
  58                 horch = ACS_HLINE;
  59         a = _ATTR(horch);
  60         horch = _WCHAR(win, horch) | a;
  61         memSset(fp, horch | win->_attrs, num_chars);
  62         if (curx < win->_firstch[cury])
  63                 win->_firstch[cury] = curx;
  64         if ((curx += (num_chars - 1)) > win->_lastch[cury])
  65                 win->_lastch[cury] = curx;
  66         win->_flags |= _WINCHANGED;
  67
  68         if (win->_sync)
  69                 wsyncup(win);
  70
  71         return (win->_immed ? wrefresh(win) : OK);
  72 }