2 * checklist.c -- implements the checklist box
4 * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
5 * Stuart Herbert - S.Herbert@sheffield.ac.uk: radiolist extension
6 * Alessandro Rubini - rubini@ipvvis.unipv.it: merged the two
7 * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2
12 * of the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 static int list_width, check_x, item_x, checkflag;
32 print_item (WINDOW * win, const char *item, int status,
33 int choice, int selected)
37 /* Clear 'residue' of last item */
38 wattrset (win, menubox_attr);
39 wmove (win, choice, 0);
40 for (i = 0; i < list_width; i++)
43 wmove (win, choice, check_x);
44 wattrset (win, selected ? check_selected_attr : check_attr);
45 if (checkflag == FLAG_CHECK)
46 wprintw (win, "[%c]", status ? 'X' : ' ');
48 wprintw (win, "(%c)", status ? 'X' : ' ');
50 wattrset (win, selected ? tag_selected_attr : tag_attr);
51 mvwaddch(win, choice, item_x, item[0]);
52 wattrset (win, selected ? item_selected_attr : item_attr);
53 waddstr (win, (char *)item+1);
57 * Print the scroll indicators.
60 print_arrows (WINDOW * win, int choice, int item_no, int scroll,
61 int y, int x, int height)
66 wattrset (win, uarrow_attr);
67 waddch (win, ACS_UARROW);
71 wattrset (win, menubox_attr);
72 waddch (win, ACS_HLINE);
73 waddch (win, ACS_HLINE);
74 waddch (win, ACS_HLINE);
75 waddch (win, ACS_HLINE);
81 if ((height < item_no) && (scroll + choice < item_no - 1)) {
82 wattrset (win, darrow_attr);
83 waddch (win, ACS_DARROW);
87 wattrset (win, menubox_border_attr);
88 waddch (win, ACS_HLINE);
89 waddch (win, ACS_HLINE);
90 waddch (win, ACS_HLINE);
91 waddch (win, ACS_HLINE);
96 * Display the termination buttons
99 print_buttons( WINDOW *dialog, int height, int width, int selected)
101 int x = width / 2 - 11;
104 print_button (dialog, "Select", y, x, selected == 0);
105 print_button (dialog, " Help ", y, x + 14, selected == 1);
107 wmove(dialog, y, x+1 + 14*selected);
112 * Display a dialog box with a list of options that can be turned on or off
113 * The `flag' parameter is used to select between radiolist and checklist.
116 dialog_checklist (const char *title, const char *prompt, int height, int width,
117 int list_height, int item_no, const char * const * items, int flag)
120 int i, x, y, box_x, box_y;
121 int key = 0, button = 0, choice = 0, scroll = 0, max_choice, *status;
122 WINDOW *dialog, *list;
126 /* Allocate space for storing item on/off status */
127 if ((status = malloc (sizeof (int) * item_no)) == NULL) {
130 "\nCan't allocate memory in dialog_checklist().\n");
134 /* Initializes status */
135 for (i = 0; i < item_no; i++) {
136 status[i] = !strcasecmp (items[i * 3 + 2], "on");
137 if (!choice && status[i])
141 max_choice = MIN (list_height, item_no);
143 /* center dialog box on screen */
144 x = (COLS - width) / 2;
145 y = (LINES - height) / 2;
147 draw_shadow (stdscr, y, x, height, width);
149 dialog = newwin (height, width, y, x);
150 keypad (dialog, TRUE);
152 draw_box (dialog, 0, 0, height, width, dialog_attr, border_attr);
153 wattrset (dialog, border_attr);
154 mvwaddch (dialog, height-3, 0, ACS_LTEE);
155 for (i = 0; i < width - 2; i++)
156 waddch (dialog, ACS_HLINE);
157 wattrset (dialog, dialog_attr);
158 waddch (dialog, ACS_RTEE);
160 if (title != NULL && strlen(title) >= width-2 ) {
161 /* truncate long title -- mec */
162 char * title2 = malloc(width-2+1);
163 memcpy( title2, title, width-2 );
164 title2[width-2] = '\0';
169 wattrset (dialog, title_attr);
170 mvwaddch (dialog, 0, (width - strlen(title))/2 - 1, ' ');
171 waddstr (dialog, (char *)title);
172 waddch (dialog, ' ');
175 wattrset (dialog, dialog_attr);
176 print_autowrap (dialog, prompt, width - 2, 1, 3);
178 list_width = width - 6;
179 box_y = height - list_height - 5;
180 box_x = (width - list_width) / 2 - 1;
182 /* create new window for the list */
183 list = subwin (dialog, list_height, list_width, y+box_y+1, x+box_x+1);
187 /* draw a box around the list items */
188 draw_box (dialog, box_y, box_x, list_height + 2, list_width + 2,
189 menubox_border_attr, menubox_attr);
191 /* Find length of longest item in order to center checklist */
193 for (i = 0; i < item_no; i++)
194 check_x = MAX (check_x, + strlen (items[i * 3 + 1]) + 4);
196 check_x = (list_width - check_x) / 2;
197 item_x = check_x + 4;
199 if (choice >= list_height) {
200 scroll = choice - list_height + 1;
205 for (i = 0; i < max_choice; i++) {
206 print_item (list, items[(scroll+i) * 3 + 1],
207 status[i+scroll], i, i == choice);
212 print_arrows(dialog, choice, item_no, scroll,
213 box_y, box_x + check_x + 5, list_height);
215 print_buttons(dialog, height, width, 0);
218 key = wgetch (dialog);
220 for (i = 0; i < max_choice; i++)
221 if (toupper(key) == toupper(items[(scroll+i)*3+1][0]))
225 if ( i < max_choice || key == KEY_UP || key == KEY_DOWN ||
226 key == '+' || key == '-' ) {
227 if (key == KEY_UP || key == '-') {
231 /* Scroll list down */
232 if (list_height > 1) {
233 /* De-highlight current first item */
234 print_item (list, items[scroll * 3 + 1],
235 status[scroll], 0, FALSE);
236 scrollok (list, TRUE);
238 scrollok (list, FALSE);
241 print_item (list, items[scroll * 3 + 1],
242 status[scroll], 0, TRUE);
245 print_arrows(dialog, choice, item_no, scroll,
246 box_y, box_x + check_x + 5, list_height);
250 continue; /* wait for another key press */
253 } else if (key == KEY_DOWN || key == '+') {
254 if (choice == max_choice - 1) {
255 if (scroll + choice >= item_no - 1)
258 if (list_height > 1) {
259 /* De-highlight current last item before scrolling up */
260 print_item (list, items[(scroll + max_choice - 1) * 3 + 1],
261 status[scroll + max_choice - 1],
262 max_choice - 1, FALSE);
263 scrollok (list, TRUE);
265 scrollok (list, FALSE);
268 print_item (list, items[(scroll + max_choice - 1) * 3 + 1],
269 status[scroll + max_choice - 1],
270 max_choice - 1, TRUE);
273 print_arrows(dialog, choice, item_no, scroll,
274 box_y, box_x + check_x + 5, list_height);
278 continue; /* wait for another key press */
283 /* De-highlight current item */
284 print_item (list, items[(scroll + choice) * 3 + 1],
285 status[scroll + choice], choice, FALSE);
286 /* Highlight new item */
288 print_item (list, items[(scroll + choice) * 3 + 1],
289 status[scroll + choice], choice, TRUE);
293 continue; /* wait for another key press */
305 button = ((key == KEY_LEFT ? --button : ++button) < 0)
306 ? 1 : (button > 1 ? 0 : button);
308 print_buttons(dialog, height, width, button);
316 if (flag == FLAG_CHECK) {
317 status[scroll + choice] = !status[scroll + choice];
318 wmove (list, choice, check_x);
319 wattrset (list, check_selected_attr);
320 wprintw (list, "[%c]", status[scroll + choice] ? 'X' : ' ');
322 if (!status[scroll + choice]) {
323 for (i = 0; i < item_no; i++)
325 status[scroll + choice] = 1;
326 for (i = 0; i < max_choice; i++)
327 print_item (list, items[(scroll + i) * 3 + 1],
328 status[scroll + i], i, i == choice);
334 for (i = 0; i < item_no; i++) {
336 if (flag == FLAG_CHECK) {
337 fprintf (stderr, "\"%s\" ", items[i * 3]);
339 fprintf (stderr, "%s", items[i * 3]);
358 return -1; /* ESC pressed */