usr/src/lib/libcurses/screen/slk_refresh.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 1997 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 /* Update the soft-label window. */
  48
  49 int
  50 slk_refresh(void)
  51 {
  52         if (_slk_update()) {
  53                 return (wrefresh(SP->slk->_win));
  54         }
  55         return (0);
  56 }
  57
  58 /* Update soft labels. Return TRUE if a window was updated. */
  59
  60 int
  61 _slk_update(void)
  62 {
  63         WINDOW  *win;
  64         SLK_MAP *slk;
  65         int     i;
  66
  67         if ((slk = SP->slk) == NULL || (slk->_changed != TRUE))
  68                 return (FALSE);
  69
  70         win = slk->_win;
  71         for (i = 0; i < slk->_num; ++i)
  72                 if (slk->_lch[i]) {
  73                         if (win)
  74                                 (void) mvwaddstr(win, 0, slk->_labx[i],
  75                                     slk->_ldis[i]);
  76                         else
  77                                 _PUTS(tparm_p2(plab_norm, i + 1,
  78                                     (long)slk->_ldis[i]), 1);
  79
  80                         slk->_lch[i] = FALSE;
  81                 }
  82         if (!win) {
  83                 _PUTS(label_on, 1);
  84                 /*
  85                  * Added an fflush because if application code calls a
  86                  * slk_refresh or a slk_noutrefresh
  87                  * and a doupdate nothing will get flushed since this
  88                  * information is not being kept in curscr or _virtscr.
  89                  */
  90                 (void) fflush(SP->term_file);
  91         }
  92
  93         slk->_changed = FALSE;
  94
  95         return (win ? TRUE : FALSE);
  96 }