1 /****************************************************************************
2 * Copyright (c) 1998-2002,2003 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 *
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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 *
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21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * Except as contained in this notice, the name(s) of the above copyright *
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27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
31 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
32 ****************************************************************************/
39 #include <curses.priv.h>
42 #include <term.h> /* num_labels, label_*, plab_norm */
44 MODULE_ID("$Id: lib_slk.c,v 1.28 2003/05/24 21:10:28 tom Exp $")
47 * We'd like to move these into the screen context structure, but cannot,
48 * because slk_init() is called before initscr()/newterm().
50 NCURSES_EXPORT_VAR(int)
51 _nc_slk_format = 0; /* one more than format specified in slk_init() */
54 * Paint the info line for the PC style SLK emulation.
58 slk_paint_info(WINDOW *win)
60 if (win && SP->slk_format == 4) {
63 mvwhline(win, 0, 0, 0, getmaxx(win));
66 for (i = 0; i < SP->_slk->maxlab; i++) {
67 mvwprintw(win, 0, SP->_slk->ent[i].ent_x, "F%d", i + 1);
73 * Free any memory related to soft labels, return an error.
79 FreeIfNeeded(SP->_slk->ent);
87 * Initialize soft labels.
88 * Called from newterm()
91 _nc_slk_initialize(WINDOW *stwin, int cols)
97 T((T_CALLED("_nc_slk_initialize()")));
99 if (SP->_slk) { /* we did this already, so simply return */
101 } else if ((SP->_slk = typeCalloc(SLK, 1)) == 0)
104 SP->_slk->ent = NULL;
107 * If we use colors, vidputs() will suppress video attributes that conflict
108 * with colors. In that case, we're still guaranteed that "reverse" would
111 if ((no_color_video & 1) == 0)
112 SP->_slk->attr = A_STANDOUT;
114 SP->_slk->attr = A_REVERSE;
116 SP->_slk->maxlab = ((num_labels > 0)
118 : MAX_SKEY(_nc_slk_format));
119 SP->_slk->maxlen = ((num_labels > 0)
120 ? label_width * label_height
121 : MAX_SKEY_LEN(_nc_slk_format));
122 SP->_slk->labcnt = ((SP->_slk->maxlab < MAX_SKEY(_nc_slk_format))
123 ? MAX_SKEY(_nc_slk_format)
126 if (SP->_slk->maxlen <= 0
127 || SP->_slk->labcnt <= 0
128 || (SP->_slk->ent = typeCalloc(slk_ent,
129 (unsigned) SP->_slk->labcnt)) == NULL)
130 returnCode(slk_failed());
132 max_length = SP->_slk->maxlen;
133 for (i = 0; i < SP->_slk->labcnt; i++) {
135 if ((SP->_slk->ent[i].ent_text = (char *)_nc_doalloc(0, max_length + 1)) == 0)
136 returnCode(slk_failed());
137 memset(SP->_slk->ent[i].ent_text, 0, max_length + 1);
139 if ((SP->_slk->ent[i].form_text = (char *)_nc_doalloc(0, max_length + 1)) == 0)
140 returnCode(slk_failed());
141 memset(SP->_slk->ent[i].form_text, 0, max_length + 1);
143 memset(SP->_slk->ent[i].form_text, ' ', max_length);
144 SP->_slk->ent[i].visible = (i < SP->_slk->maxlab);
146 if (_nc_slk_format >= 3) { /* PC style */
147 int gap = (cols - 3 * (3 + 4 * max_length)) / 2;
152 for (i = x = 0; i < SP->_slk->maxlab; i++) {
153 SP->_slk->ent[i].ent_x = x;
155 x += (i == 3 || i == 7) ? gap : 1;
157 slk_paint_info(stwin);
159 if (_nc_slk_format == 2) { /* 4-4 */
160 int gap = cols - (SP->_slk->maxlab * max_length) - 6;
164 for (i = x = 0; i < SP->_slk->maxlab; i++) {
165 SP->_slk->ent[i].ent_x = x;
167 x += (i == 3) ? gap : 1;
170 if (_nc_slk_format == 1) { /* 1 -> 3-2-3 */
171 int gap = (cols - (SP->_slk->maxlab * max_length) - 5)
176 for (i = x = 0; i < SP->_slk->maxlab; i++) {
177 SP->_slk->ent[i].ent_x = x;
179 x += (i == 2 || i == 4) ? gap : 1;
182 returnCode(slk_failed());
185 SP->_slk->dirty = TRUE;
186 if ((SP->_slk->win = stwin) == NULL) {
187 returnCode(slk_failed());
190 /* We now reset the format so that the next newterm has again
191 * per default no SLK keys and may call slk_init again to
192 * define a new layout. (juergen 03-Mar-1999)
194 SP->slk_format = _nc_slk_format;
200 * Restore the soft labels on the screen.
205 T((T_CALLED("slk_restore()")));
207 if (SP->_slk == NULL)
209 SP->_slk->hidden = FALSE;
210 SP->_slk->dirty = TRUE;
211 /* we have to repaint info line eventually */
212 slk_paint_info(SP->_slk->win);
214 returnCode(slk_refresh());