usr/src/lib/libcurses/screen/wvline.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 /*LINTLIBRARY*/
  43
  44 #include        <sys/types.h>
  45 #include        "curses_inc.h"
  46
  47 int
  48 wvline(WINDOW *win, chtype vertch, int num_chars)
  49 {
  50         short   cury = win->_cury, curx = win->_curx;
  51         chtype  a, **fp = win->_y;
  52         short   *firstch = &(win->_firstch[cury]);
  53         short   *lastch = &(win->_lastch[cury]);
  54
  55         if (num_chars <= 0)
  56                 return (ERR);
  57
  58         if (num_chars > win->_maxy - cury)
  59                 num_chars = win->_maxy - cury;
  60         if (vertch == 0)
  61                 vertch = ACS_VLINE;
  62         a = _ATTR(vertch);
  63         vertch = _WCHAR(win, vertch) | a;
  64         for (num_chars += cury; cury < num_chars; cury++, firstch++,
  65             lastch++) {
  66                 fp[cury][curx] = vertch;
  67                 if (curx < *firstch)
  68                         *firstch = curx;
  69                 if (curx > *lastch)
  70                         *lastch = curx;
  71         }
  72         win->_flags |= _WINCHANGED;
  73
  74         if (win->_sync)
  75                 wsyncup(win);
  76
  77         return (win->_immed ? wrefresh(win) : OK);
  78 }