1 /****************************************************************************
2 * Copyright (c) 1998-2005,2008 Free Software Foundation, Inc. *
4 * Permission is hereby granted, free of charge, to any person obtaining a *
5 * copy of this software and associated documentation files (the *
6 * "Software"), to deal in the Software without restriction, including *
7 * without limitation the rights to use, copy, modify, merge, publish, *
8 * distribute, distribute with modifications, sublicense, and/or sell *
9 * copies of the Software, and to permit persons to whom the Software is *
10 * furnished to do so, subject to the following conditions: *
12 * The above copyright notice and this permission notice shall be included *
13 * in all copies or substantial portions of the Software. *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * Except as contained in this notice, the name(s) of the above copyright *
24 * holders shall not be used in advertising or otherwise to promote the *
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27 ****************************************************************************/
29 /****************************************************************************
31 * Gerhard Fuernkranz 1993 (original) *
32 * Zeyd M. Ben-Halim 1992,1995 (sic) *
34 * Juergen Pfeifer 1996-on *
36 ****************************************************************************/
43 #include <curses.priv.h>
46 #include <term.h> /* num_labels, label_*, plab_norm */
48 MODULE_ID("$Id: lib_slk.c,v 1.35 2008/09/27 14:07:33 juergen Exp $")
51 * Free any memory related to soft labels, return an error.
57 FreeIfNeeded(SP->_slk->ent);
65 * Initialize soft labels.
66 * Called from newterm()
69 _nc_slk_initialize(WINDOW *stwin, int cols)
75 T((T_CALLED("_nc_slk_initialize()")));
77 if (SP->_slk) { /* we did this already, so simply return */
79 } else if ((SP->_slk = typeCalloc(SLK, 1)) == 0)
85 * If we use colors, vidputs() will suppress video attributes that conflict
86 * with colors. In that case, we're still guaranteed that "reverse" would
89 if ((no_color_video & 1) == 0)
90 SetAttr(SP->_slk->attr, A_STANDOUT);
92 SetAttr(SP->_slk->attr, A_REVERSE);
94 SP->_slk->maxlab = ((num_labels > 0)
96 : MAX_SKEY(_nc_globals.slk_format));
97 SP->_slk->maxlen = ((num_labels > 0)
98 ? label_width * label_height
99 : MAX_SKEY_LEN(_nc_globals.slk_format));
100 SP->_slk->labcnt = ((SP->_slk->maxlab < MAX_SKEY(_nc_globals.slk_format))
101 ? MAX_SKEY(_nc_globals.slk_format)
104 if (SP->_slk->maxlen <= 0
105 || SP->_slk->labcnt <= 0
106 || (SP->_slk->ent = typeCalloc(slk_ent,
107 (unsigned) SP->_slk->labcnt)) == NULL)
108 returnCode(slk_failed());
110 max_length = SP->_slk->maxlen;
111 for (i = 0; i < SP->_slk->labcnt; i++) {
112 size_t used = max_length + 1;
114 if ((SP->_slk->ent[i].ent_text = (char *) _nc_doalloc(0, used)) == 0)
115 returnCode(slk_failed());
116 memset(SP->_slk->ent[i].ent_text, 0, used);
118 if ((SP->_slk->ent[i].form_text = (char *) _nc_doalloc(0, used)) == 0)
119 returnCode(slk_failed());
120 memset(SP->_slk->ent[i].form_text, 0, used);
122 memset(SP->_slk->ent[i].form_text, ' ', max_length);
123 SP->_slk->ent[i].visible = (char) (i < SP->_slk->maxlab);
125 if (_nc_globals.slk_format >= 3) { /* PC style */
126 int gap = (cols - 3 * (3 + 4 * max_length)) / 2;
131 for (i = x = 0; i < SP->_slk->maxlab; i++) {
132 SP->_slk->ent[i].ent_x = x;
134 x += (i == 3 || i == 7) ? gap : 1;
137 if (_nc_globals.slk_format == 2) { /* 4-4 */
138 int gap = cols - (SP->_slk->maxlab * max_length) - 6;
142 for (i = x = 0; i < SP->_slk->maxlab; i++) {
143 SP->_slk->ent[i].ent_x = x;
145 x += (i == 3) ? gap : 1;
148 if (_nc_globals.slk_format == 1) { /* 1 -> 3-2-3 */
149 int gap = (cols - (SP->_slk->maxlab * max_length) - 5)
154 for (i = x = 0; i < SP->_slk->maxlab; i++) {
155 SP->_slk->ent[i].ent_x = x;
157 x += (i == 2 || i == 4) ? gap : 1;
160 returnCode(slk_failed());
163 SP->_slk->dirty = TRUE;
164 if ((SP->_slk->win = stwin) == NULL) {
165 returnCode(slk_failed());
168 /* We now reset the format so that the next newterm has again
169 * per default no SLK keys and may call slk_init again to
170 * define a new layout. (juergen 03-Mar-1999)
172 SP->slk_format = _nc_globals.slk_format;
173 _nc_globals.slk_format = 0;
178 * Restore the soft labels on the screen.
183 T((T_CALLED("slk_restore()")));
185 if (SP->_slk == NULL)
187 SP->_slk->hidden = FALSE;
188 SP->_slk->dirty = TRUE;
190 returnCode(slk_refresh());