1 /****************************************************************************
2 * Copyright (c) 1998-2008,2009 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 *
25 * sale, use or other dealings in this Software without prior written *
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 */
49 #define CUR SP_TERMTYPE
52 MODULE_ID("$Id: lib_slk.c,v 1.38 2009/05/10 00:48:29 tom Exp $")
55 * Free any memory related to soft labels, return an error.
61 FreeIfNeeded(SP->_slk->ent);
69 * Initialize soft labels.
70 * Called from newterm()
73 _nc_slk_initialize(WINDOW *stwin, int cols)
76 SCREEN *sp = CURRENT_SCREEN;
82 T((T_CALLED("_nc_slk_initialize()")));
84 if (SP->_slk) { /* we did this already, so simply return */
86 } else if ((SP->_slk = typeCalloc(SLK, 1)) == 0)
92 * If we use colors, vidputs() will suppress video attributes that conflict
93 * with colors. In that case, we're still guaranteed that "reverse" would
96 if ((no_color_video & 1) == 0)
97 SetAttr(SP->_slk->attr, A_STANDOUT);
99 SetAttr(SP->_slk->attr, A_REVERSE);
101 SP->_slk->maxlab = ((num_labels > 0)
103 : MAX_SKEY(_nc_globals.slk_format));
104 SP->_slk->maxlen = ((num_labels > 0)
105 ? label_width * label_height
106 : MAX_SKEY_LEN(_nc_globals.slk_format));
107 SP->_slk->labcnt = ((SP->_slk->maxlab < MAX_SKEY(_nc_globals.slk_format))
108 ? MAX_SKEY(_nc_globals.slk_format)
111 if (SP->_slk->maxlen <= 0
112 || SP->_slk->labcnt <= 0
113 || (SP->_slk->ent = typeCalloc(slk_ent,
114 (unsigned) SP->_slk->labcnt)) == NULL)
115 returnCode(slk_failed());
117 max_length = SP->_slk->maxlen;
118 for (i = 0; i < SP->_slk->labcnt; i++) {
119 size_t used = max_length + 1;
121 if ((SP->_slk->ent[i].ent_text = (char *) _nc_doalloc(0, used)) == 0)
122 returnCode(slk_failed());
123 memset(SP->_slk->ent[i].ent_text, 0, used);
125 if ((SP->_slk->ent[i].form_text = (char *) _nc_doalloc(0, used)) == 0)
126 returnCode(slk_failed());
127 memset(SP->_slk->ent[i].form_text, 0, used);
129 memset(SP->_slk->ent[i].form_text, ' ', max_length);
130 SP->_slk->ent[i].visible = (char) (i < SP->_slk->maxlab);
132 if (_nc_globals.slk_format >= 3) { /* PC style */
133 int gap = (cols - 3 * (3 + 4 * max_length)) / 2;
138 for (i = x = 0; i < SP->_slk->maxlab; i++) {
139 SP->_slk->ent[i].ent_x = x;
141 x += (i == 3 || i == 7) ? gap : 1;
144 if (_nc_globals.slk_format == 2) { /* 4-4 */
145 int gap = cols - (SP->_slk->maxlab * max_length) - 6;
149 for (i = x = 0; i < SP->_slk->maxlab; i++) {
150 SP->_slk->ent[i].ent_x = x;
152 x += (i == 3) ? gap : 1;
155 if (_nc_globals.slk_format == 1) { /* 1 -> 3-2-3 */
156 int gap = (cols - (SP->_slk->maxlab * max_length) - 5)
161 for (i = x = 0; i < SP->_slk->maxlab; i++) {
162 SP->_slk->ent[i].ent_x = x;
164 x += (i == 2 || i == 4) ? gap : 1;
167 returnCode(slk_failed());
170 SP->_slk->dirty = TRUE;
171 if ((SP->_slk->win = stwin) == NULL) {
172 returnCode(slk_failed());
175 /* We now reset the format so that the next newterm has again
176 * per default no SLK keys and may call slk_init again to
177 * define a new layout. (juergen 03-Mar-1999)
179 SP->slk_format = _nc_globals.slk_format;
180 _nc_globals.slk_format = 0;
185 * Restore the soft labels on the screen.
188 NCURSES_SP_NAME(slk_restore) (NCURSES_SP_DCL0)
190 T((T_CALLED("slk_restore()")));
192 if (SP_PARM->_slk == NULL)
194 SP_PARM->_slk->hidden = FALSE;
195 SP_PARM->_slk->dirty = TRUE;
197 returnCode(slk_refresh());
204 return NCURSES_SP_NAME(slk_restore) (CURRENT_SCREEN);