2 * radiolist.c -- implements the radiolist box
4 * AUTHOR: Stuart Herbert - S.Herbert@sheffield.ac.uk
5 * (from checklist.c by Savio Lam (lam836@cs.cuhk.hk))
7 * Substantial rennovation: 12/18/95, Jordan K. Hubbard
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.
24 #include <sys/cdefs.h>
25 __FBSDID("$FreeBSD$");
28 #include "dialog.priv.h"
31 static void print_item(WINDOW *win, char *tag, char *item, int status, int choice, int selected, dialogMenuItem *me);
33 #define DREF(di, item) ((di) ? &((di)[(item)]) : NULL)
35 static int list_width, check_x, item_x;
39 * Display a dialog box with a list of options that can be turned on or off
42 dialog_radiolist(unsigned char *title, unsigned char *prompt, int height, int width, int list_height,
43 int cnt, void *it, unsigned char *result)
45 int i, j, x, y, cur_x, cur_y, old_x, old_y, box_x, box_y, key = 0, button,
46 choice, l, k, scroll, max_choice, *status, item_no = 0, was_on = 0;
47 int redraw_menu = FALSE, cursor_reset = FALSE;
48 int rval = 0, onlist = 1, ok_space, cancel_space;
49 char okButton, cancelButton;
50 WINDOW *dialog, *list;
51 unsigned char **items = NULL;
52 dialogMenuItem *ditems;
54 /* Allocate space for storing item on/off status */
55 if ((status = alloca(sizeof(int) * abs(cnt))) == NULL) {
57 fprintf(stderr, "\nCan't allocate memory in dialog_radiolist().\n");
62 button = choice = scroll = 0;
63 /* Previous calling syntax, e.g. just a list of strings? */
68 /* Initializes status */
69 for (i = 0; i < item_no; i++) {
70 status[i] = !strcasecmp(items[i*3 + 2], "on");
79 /* It's the new specification format - fake the rest of the code out */
84 items = (unsigned char **)alloca((item_no * 3) * sizeof(unsigned char *));
85 /* Initializes status */
86 for (i = 0; i < item_no; i++) {
87 status[i] = ditems[i].checked ? ditems[i].checked(&ditems[i]) : FALSE;
94 items[i*3] = ditems[i].prompt;
95 items[i*3 + 1] = ditems[i].title;
96 items[i*3 + 2] = status[i] ? "on" : "off";
99 max_choice = MIN(list_height, item_no);
103 /* Find length of longest item in order to center radiolist */
104 for (i = 0; i < item_no; i++) {
105 l = strlen(items[i * 3]);
106 for (j = 0; j < item_no; j++) {
107 k = strlen(items[j * 3 + 1]);
108 check_x = MAX(check_x, l + k + 6);
110 item_x = MAX(item_x, l);
113 height = strheight(prompt) + list_height + 4 + 2;
115 i = strwidth(prompt);
116 j = ((title != NULL) ? strwidth(title) : 0);
118 width = MAX(width, check_x + 4) + 4;
120 width = MAX(width, 24);
126 /* center dialog box on screen */
127 x = DialogX ? DialogX : (COLS - width) / 2;
128 y = DialogY ? DialogY : (LINES - height) / 2;
132 draw_shadow(stdscr, y, x, height, width);
134 dialog = newwin(height, width, y, x);
135 if (dialog == NULL) {
137 fprintf(stderr, "\nnewwin(%d,%d,%d,%d) failed, maybe wrong dims\n", height, width, y, x);
140 keypad(dialog, TRUE);
142 draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
143 wattrset(dialog, border_attr);
144 wmove(dialog, height - 3, 0);
145 waddch(dialog, ACS_LTEE);
146 for (i = 0; i < width - 2; i++)
147 waddch(dialog, ACS_HLINE);
148 wattrset(dialog, dialog_attr);
149 waddch(dialog, ACS_RTEE);
150 wmove(dialog, height - 2, 1);
151 for (i = 0; i < width - 2; i++)
155 wattrset(dialog, title_attr);
156 wmove(dialog, 0, (width - strlen(title)) / 2 - 1);
158 waddstr(dialog, title);
161 wattrset(dialog, dialog_attr);
163 print_autowrap(dialog, prompt, height - 1, width - 2, width, 1, 2, TRUE, FALSE);
165 list_width = width - 6;
166 getyx(dialog, cur_y, cur_x);
168 box_x = (width - list_width) / 2 - 1;
170 /* create new window for the list */
171 list = subwin(dialog, list_height, list_width, y + box_y + 1, x + box_x + 1);
175 fprintf(stderr, "\nsubwin(dialog,%d,%d,%d,%d) failed, maybe wrong dims\n", list_height, list_width,
176 y + box_y + 1,x + box_x + 1);
181 /* draw a box around the list items */
182 draw_box(dialog, box_y, box_x, list_height+2, list_width+2, menubox_border_attr, menubox_attr);
184 check_x = (list_width - check_x) / 2;
185 item_x = check_x + item_x + 6;
188 for (i = 0; i < max_choice; i++)
189 print_item(list, items[i * 3], items[i * 3 + 1], status[i], i, i == choice, DREF(ditems, i));
191 print_arrows(dialog, scroll, list_height, item_no, box_x, box_y, check_x + 4, cur_x, cur_y);
193 display_helpline(dialog, height-1, width);
197 if (ditems && result) {
198 cancelButton = toupper(ditems[CANCEL_BUTTON].prompt[0]);
199 print_button(dialog, ditems[CANCEL_BUTTON].prompt, y, x + strlen(ditems[OK_BUTTON].prompt) + 5,
200 ditems[CANCEL_BUTTON].checked ? ditems[CANCEL_BUTTON].checked(&ditems[CANCEL_BUTTON]) : FALSE);
201 okButton = toupper(ditems[OK_BUTTON].prompt[0]);
202 print_button(dialog, ditems[OK_BUTTON].prompt, y, x,
203 ditems[OK_BUTTON].checked ? ditems[OK_BUTTON].checked(&ditems[OK_BUTTON]) : TRUE);
207 print_button(dialog, "Cancel", y, x + 14, FALSE);
209 print_button(dialog, " OK ", y, x, TRUE);
211 wnoutrefresh(dialog);
212 wmove(list, choice, check_x+1);
216 key = wgetch(dialog);
218 /* See if its the short-cut to "OK" */
219 if (toupper(key) == okButton) {
221 if (result && ditems[OK_BUTTON].fire) {
225 save = dupwin(newscr);
226 st = ditems[OK_BUTTON].fire(&ditems[OK_BUTTON]);
227 if (st & DITEM_RESTORE) {
236 for (i = 0; i < item_no; i++) {
238 strcat(result, items[i*3]);
248 /* Shortcut to cancel */
249 if (toupper(key) == cancelButton) {
250 if (ditems && result && ditems[CANCEL_BUTTON].fire) {
254 save = dupwin(newscr);
255 st = ditems[CANCEL_BUTTON].fire(&ditems[CANCEL_BUTTON]);
256 if (st & DITEM_RESTORE) {
267 /* Check if key pressed matches first character of any item tag in list */
268 for (i = 0; i < max_choice; i++)
269 if (key != ' ' && toupper(key) == toupper(items[(scroll + i) * 3][0]))
272 if (i < max_choice || (key >= '1' && key <= MIN('9', '0' + max_choice)) ||
273 KEY_IS_UP(key) || KEY_IS_DOWN(key) || ((key == ' ' || key == '\r' || key == '\n') && onlist == 1)) {
275 /* if moving from buttons to the list, reset and redraw buttons */
280 if (ditems && result ) {
281 print_button(dialog, ditems[CANCEL_BUTTON].prompt, y, x + strlen(ditems[OK_BUTTON].prompt) + 5,
282 ditems[CANCEL_BUTTON].checked ? ditems[CANCEL_BUTTON].checked(&ditems[CANCEL_BUTTON]) : button);
283 print_button(dialog, ditems[OK_BUTTON].prompt, y, x,
284 ditems[OK_BUTTON].checked ? ditems[OK_BUTTON].checked(&ditems[OK_BUTTON]) : !button);
287 print_button(dialog, "Cancel", y, x + 14, button);
288 print_button(dialog, " OK ", y, x, !button);
291 wmove(list, choice, check_x+1);
292 wnoutrefresh(dialog);
295 if (key >= '1' && key <= MIN('9', '0' + max_choice))
297 else if (KEY_IS_UP(key)) {
300 /* Scroll list down */
301 getyx(dialog, cur_y, cur_x); /* Save cursor position */
302 if (list_height > 1) {
303 /* De-highlight current first item before scrolling down */
304 print_item(list, items[scroll*3], items[scroll*3 + 1], status[scroll], 0,
305 FALSE, DREF(ditems, scroll));
306 scrollok(list, TRUE);
308 scrollok(list, FALSE);
311 print_item(list, items[scroll*3], items[scroll*3 + 1], status[scroll], 0,
312 TRUE, DREF(ditems, scroll));
313 print_arrows(dialog, scroll, list_height, item_no, box_x, box_y, check_x + 4, cur_x, cur_y);
314 wmove(list, choice, check_x+1);
315 wnoutrefresh(dialog);
318 continue; /* wait for another key press */
323 else if (KEY_IS_DOWN(key)) {
324 if (choice == max_choice - 1) {
325 if (scroll + choice < item_no - 1) {
327 getyx(dialog, cur_y, cur_x); /* Save cursor position */
328 if (list_height > 1) {
329 /* De-highlight current last item before scrolling up */
330 print_item(list, items[(scroll + max_choice - 1) * 3],
331 items[(scroll + max_choice - 1) * 3 + 1],
332 status[scroll + max_choice - 1], max_choice - 1,
333 FALSE, DREF(ditems, scroll + max_choice - 1));
334 scrollok(list, TRUE);
336 scrollok(list, FALSE);
339 print_item(list, items[(scroll + max_choice - 1) * 3],
340 items[(scroll + max_choice - 1) * 3 + 1],
341 status[scroll + max_choice - 1], max_choice - 1,
342 TRUE, DREF(ditems, scroll + max_choice - 1));
343 print_arrows(dialog, scroll, list_height, item_no, box_x, box_y, check_x + 4, cur_x, cur_y);
344 wmove(list, choice, check_x+1);
345 wnoutrefresh(dialog);
348 continue; /* wait for another key press */
353 else if ((key == ' ' || key == '\r' || key == '\n') && onlist) { /* Toggle item status */
354 getyx(list, old_y, old_x); /* Save cursor position */
355 if (status[scroll + choice])
358 if (ditems[scroll + choice].fire) {
362 save = dupwin(newscr);
363 st = ditems[scroll + choice].fire(&ditems[scroll + choice]);
364 if (st & DITEM_RESTORE) {
369 if (st & DITEM_REDRAW) {
371 for (i = 0; i < item_no; i++)
372 status[i] = ditems[i].checked ? ditems[i].checked(&ditems[i]) : FALSE;
374 for (i = 0; i < max_choice; i++) {
375 print_item(list, items[(scroll + i) * 3], items[(scroll + i) * 3 + 1],
376 status[scroll + i], i, i == choice,
377 DREF(ditems, scroll + i));
379 /* wmove(list, old_y, old_x);*/ /* Restore cursor to previous position */
380 /* wrefresh(list); */
382 if (st & DITEM_LEAVE_MENU) {
383 /* Allow a fire action to take us out of the menu */
387 else if (st & DITEM_RECREATE) {
394 for (i = 0; i < item_no; i++)
395 status[i] = ditems[i].checked ? ditems[i].checked(&ditems[i]) : FALSE;
398 for (i = 0; i < item_no; i++)
400 status[scroll + choice] = TRUE;
402 for (i = 0; i < max_choice; i++)
403 print_item(list, items[(scroll + i) * 3], items[(scroll + i) * 3 + 1],
404 status[scroll + i], i, i == choice, DREF(ditems, scroll + i));
405 wmove(list, choice, check_x+1); /* Restore cursor position */
407 continue; /* wait for another key press */
411 /* De-highlight current item */
412 print_item(list, items[(scroll + choice) * 3], items[(scroll + choice) * 3 +1],
413 status[scroll + choice], choice, FALSE, DREF(ditems, scroll + choice));
414 /* Highlight new item */
416 print_item(list, items[(scroll + choice) * 3], items[(scroll + choice) * 3 + 1],
417 status[scroll + choice], choice, TRUE, DREF(ditems, scroll + choice));
418 wmove(list, choice, check_x+1); /* Restore cursor position */
421 continue; /* wait for another key press */
426 if (scroll > height-4) /* can we go up? */
427 scroll -= (height-4);
438 if (scroll + list_height >= item_no-1 - list_height) { /* can we go down a full page? */
439 scroll = item_no - list_height;
444 scroll += list_height;
461 scroll = item_no - list_height;
464 choice = max_choice - 1;
472 /* move to next component */
473 if (onlist) { /* on list, next is ok button */
475 if (ditems && result)
479 wmove(dialog, y, x + ok_space);
483 else if (button) { /* on cancel button, next is list */
489 /* on ok button, next is cancel button, same as left/right case */
495 if (ditems && result) {
496 print_button(dialog, ditems[CANCEL_BUTTON].prompt, y, x + strlen(ditems[OK_BUTTON].prompt) + 5,
497 ditems[CANCEL_BUTTON].checked ? ditems[CANCEL_BUTTON].checked(&ditems[CANCEL_BUTTON]) : button);
498 print_button(dialog, ditems[OK_BUTTON].prompt, y, x,
499 ditems[OK_BUTTON].checked ? ditems[OK_BUTTON].checked(&ditems[OK_BUTTON]) : !button);
501 cancel_space = strlen(ditems[OK_BUTTON].prompt) + 6;
504 print_button(dialog, "Cancel", y, x + 14, button);
505 print_button(dialog, " OK ", y, x, !button);
510 wmove(dialog, y, x + cancel_space);
512 wmove(dialog, y, x + ok_space);
521 if (result && ditems[button ? CANCEL_BUTTON : OK_BUTTON].fire) {
525 save = dupwin(newscr);
526 st = ditems[button ? CANCEL_BUTTON : OK_BUTTON].fire(&ditems[button ? CANCEL_BUTTON : OK_BUTTON]);
527 if (st & DITEM_RESTORE) {
536 for (i = 0; i < item_no; i++) {
538 strcpy(result, items[i*3]);
559 getyx(list, old_y, old_x);
561 for (i = 0; i < max_choice; i++)
562 print_item(list, items[(scroll + i) * 3], items[(scroll + i) * 3 + 1], status[scroll + i],
563 i, i == choice, DREF(ditems, scroll + i));
564 print_arrows(dialog, scroll, list_height, item_no, box_x, box_y, check_x + 4, cur_x, cur_y);
566 /* redraw buttons to fix highlighting */
567 if (ditems && result) {
568 print_button(dialog, ditems[CANCEL_BUTTON].prompt, y, x + strlen(ditems[OK_BUTTON].prompt) + 5,
569 ditems[CANCEL_BUTTON].checked ? ditems[CANCEL_BUTTON].checked(&ditems[CANCEL_BUTTON]) : button);
570 print_button(dialog, ditems[OK_BUTTON].prompt, y, x,
571 ditems[OK_BUTTON].checked ? ditems[OK_BUTTON].checked(&ditems[OK_BUTTON]) : !button);
574 print_button(dialog, "Cancel", y, x + 14, button);
575 print_button(dialog, " OK ", y, x, !button);
577 wnoutrefresh(dialog);
579 wmove(list, choice, check_x+1);
580 cursor_reset = FALSE;
583 wmove(list, old_y, old_x);
592 return rval; /* ESC pressed */
599 print_item(WINDOW *win, char *tag, char *item, int status, int choice, int selected, dialogMenuItem *me)
603 /* Clear 'residue' of last item */
604 wattrset(win, menubox_attr);
605 wmove(win, choice, 0);
606 for (i = 0; i < list_width; i++)
608 wmove(win, choice, check_x);
609 wattrset(win, selected ? check_selected_attr : check_attr);
610 wprintw(win, "%c%c%c", me && me->lbra ? me->lbra : '(',
611 status ? me && me->mark ? me->mark : '*' : ' ',
612 me && me->rbra ? me->rbra : ')');
613 wattrset(win, menubox_attr);
615 wattrset(win, selected ? tag_key_selected_attr : tag_key_attr);
617 wattrset(win, selected ? tag_selected_attr : tag_attr);
618 waddstr(win, tag + 1);
619 wmove(win, choice, item_x);
620 wattrset(win, selected ? item_selected_attr : item_attr);
622 /* If have a selection handler for this, call it */
623 if (me && me->selected) {
625 me->selected(me, selected);
628 /* End of print_item() */