usr/src/lib/libcurses/screen/init_acs.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        <stdlib.h>
  45 #include        <sys/types.h>
  46 #include        "curses_inc.h"
  47
  48 /*
  49  * When the keyboard can send more than eight bits, offsets array
  50  * should be changed from chars to shorts.
  51  * The offsets MUST match what is in curses.h.
  52  */
  53
  54 static  unsigned        char    offsets[][2] = {
  55                                     { '`', '*' },       /* ACS_DIAMOND */
  56                                     { 'a', ':' },       /* ACS_CKBOARD */
  57                                     { 'f', '\'' },      /* ACS_DEGREE */
  58                                     { 'g', '#' },       /* ACS_PLMINUS */
  59                                     { 'o', '-' },       /* ACS_S1 */
  60                                     { 'q', '-' },       /* ACS_HLINE */
  61                                     { 's', '_' },       /* ACS_S9 */
  62                                     { 'x', '|' },       /* ACS_VLINE */
  63                                     { '~', 'o' },       /* ACS_BULLET */
  64                                     { ',', '<' },       /* ACS_LARROW */
  65                                     { '+', '>' },       /* ACS_RARROW */
  66                                     { '.', 'v' },       /* ACS_DARROW */
  67                                     { '-', '^' },       /* ACS_UARROW */
  68                                     { 'h', '#' },       /* ACS_BOARD */
  69                                     { 'i', '#' },       /* ACS_LANTERN */
  70                                     { '0', '#' },       /* ACS_BLOCK */
  71                                 };
  72
  73 int
  74 init_acs(void)
  75 {
  76         chtype  *nacsmap;
  77         char    *cp;
  78         int     i = sizeof (offsets) / 2, to_get, must_output;
  79
  80 #ifdef  _VR3_COMPAT_CODE
  81         if ((nacsmap = cur_term->_acs32map = (chtype *)
  82             malloc(sizeof (chtype) * 0400)) == NULL)
  83 #else   /* _VR3_COMPAT_CODE */
  84         if ((nacsmap = cur_term->_acsmap = (chtype *)
  85             malloc(sizeof (chtype) * 0400)) == NULL)
  86 #endif  /* _VR3_COMPAT_CODE */
  87         {
  88 #ifdef  _VR3_COMPAT_CODE
  89 bad:
  90 #endif  /* _VR3_COMPAT_CODE */
  91                 term_errno = TERM_BAD_MALLOC;
  92 #ifdef  DEBUG
  93                 strcpy(term_parm_err, "init_acs");
  94 #endif  /* DEBUG */
  95                 return (ERR);
  96         }
  97
  98         /* Default acs chars for regular ASCII terminals are plus signs. */
  99
 100         memSset(nacsmap, (chtype) '+', 0400);
 101
 102         /*
 103         * Now load in defaults for some of the characters which have close
 104         * approximations in the normal ascii set.
 105         */
 106
 107         while (i-- > 0)
 108                 nacsmap[offsets[i][0]] = offsets[i][1];
 109
 110         /* Now do mapping for terminals own ACS, if any */
 111
 112         if ((cp = acs_chars) != 0)
 113                 while (*cp) {
 114                         to_get = *cp++;         /* to get this ... */
 115                         must_output = *cp++;    /* must output this ... */
 116 #ifdef  DEBUG
 117                         if (outf)
 118                                 fprintf(outf, "acs %d, was %d, now %d\n",
 119                                     to_get, nacsmap[to_get], must_output);
 120 #endif  /* DEBUG */
 121                         nacsmap[to_get] = ( must_output & 0xFF ) | A_ALTCHARSET;
 122                 }
 123
 124         acs_map = nacsmap;
 125
 126 #ifdef  _VR3_COMPAT_CODE
 127         if (_y16update) {
 128                 _ochtype        *n16acsmap;
 129
 130                 if ((n16acsmap = cur_term->_acsmap = (_ochtype *)
 131                     malloc(sizeof (_ochtype) * 0400)) == NULL) {
 132                         goto bad;
 133                 }
 134
 135                 for (i = 0; i < 0400; i++)
 136                         /*LINTED*/
 137                         n16acsmap[i] = _TO_OCHTYPE(nacsmap[i]);
 138 #undef  acs_map
 139                         acs_map = n16acsmap;
 140         }
 141 #endif  /* _VR3_COMPAT_CODE */
 142         return (OK);
 143 }