1 /*
2 * $Id: menubox.c,v 1.148 2013/09/02 17:15:13 tom Exp $
3 *
4 * menubox.c -- implements the menu box
5 *
6 * Copyright 2000-2012,2013 Thomas E. Dickey
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU Lesser General Public Licens, version 2.1e
10 * as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this program; if not, write to
19 * Free Software Foundation, Inc.
20 * 51 Franklin St., Fifth Floor
21 * Boston, MA 02110, USA.
22 *
23 * An earlier version of this program lists as authors
24 * Savio Lam (lam836@cs.cuhk.hk)
25 */
26
27 #include <dialog.h>
28 #include <dlg_keys.h>
29
30 typedef enum {
31 Unselected = 0,
32 Selected,
33 Editing
34 } Mode;
35
36 typedef struct {
37 /* the outer-window */
38 WINDOW *dialog;
39 int box_y;
40 int box_x;
41 int tag_x;
42 int item_x;
43 int menu_height;
44 int menu_width;
45 /* the inner-window */
46 WINDOW *menu;
47 DIALOG_LISTITEM *items;
48 int item_no;
49 } ALL_DATA;
50
51 #define MIN_HIGH (1 + (5 * MARGIN))
52
53 #define INPUT_ROWS 3 /* rows per inputmenu entry */
54
55 #define RowHeight(i) (is_inputmenu ? ((i) * INPUT_ROWS) : ((i) * 1))
56 #define ItemToRow(i) (is_inputmenu ? ((i) * INPUT_ROWS + 1) : (i))
57 #define RowToItem(i) (is_inputmenu ? ((i) / INPUT_ROWS + 0) : (i))
58
59 /*
60 * Print menu item
61 */
62 static void
print_item(ALL_DATA * data,WINDOW * win,DIALOG_LISTITEM * item,int choice,Mode selected,bool is_inputmenu)63 print_item(ALL_DATA * data,
64 WINDOW *win,
65 DIALOG_LISTITEM * item,
66 int choice,
67 Mode selected,
68 bool is_inputmenu)
69 {
70 chtype save = dlg_get_attrs(win);
71 int n;
72 int climit = (data->item_x - data->tag_x - GUTTER);
73 int my_width = data->menu_width;
74 int my_x = data->item_x;
75 int my_y = ItemToRow(choice);
76 bool both = (!dialog_vars.no_tags && !dialog_vars.no_items);
77 bool first = TRUE;
78 chtype bordchar;
79 const char *show = (dialog_vars.no_items
80 ? item->name
81 : item->text);
82
83 switch (selected) {
84 default:
85 case Unselected:
86 bordchar = item_attr;
87 break;
88 case Selected:
89 bordchar = item_selected_attr;
90 break;
91 case Editing:
92 bordchar = dialog_attr;
93 break;
94 }
95
96 /* Clear 'residue' of last item and mark current current item */
97 if (is_inputmenu) {
98 (void) wattrset(win, (selected != Unselected) ? item_selected_attr : item_attr);
99 for (n = my_y - 1; n < my_y + INPUT_ROWS - 1; n++) {
100 wmove(win, n, 0);
101 wprintw(win, "%*s", my_width, " ");
102 }
103 } else {
104 (void) wattrset(win, menubox_attr);
105 wmove(win, my_y, 0);
106 wprintw(win, "%*s", my_width, " ");
107 }
108
109 /* highlight first char of the tag to be special */
110 if (both) {
111 (void) wmove(win, my_y, data->tag_x);
112 dlg_print_listitem(win, item->name, climit, first, selected);
113 first = FALSE;
114 }
115
116 /* Draw the input field box (only for inputmenu) */
117 (void) wmove(win, my_y, my_x);
118 if (is_inputmenu) {
119 my_width -= 1;
120 dlg_draw_box(win, my_y - 1, my_x, INPUT_ROWS, my_width - my_x - data->tag_x,
121 bordchar,
122 bordchar);
123 my_width -= 1;
124 ++my_x;
125 }
126
127 /* print actual item */
128 wmove(win, my_y, my_x);
129 dlg_print_listitem(win, show, my_width - my_x, first, selected);
130
131 if (selected) {
132 dlg_item_help(item->help);
133 }
134 (void) wattrset(win, save);
135 }
136
137 /*
138 * Allow the user to edit the text of a menu entry.
139 */
140 static int
input_menu_edit(ALL_DATA * data,DIALOG_LISTITEM * items,int choice,char ** resultp)141 input_menu_edit(ALL_DATA * data,
142 DIALOG_LISTITEM * items,
143 int choice,
144 char **resultp)
145 {
146 chtype save = dlg_get_attrs(data->menu);
147 char *result;
148 int offset = 0;
149 int key = 0, fkey = 0;
150 int first = TRUE;
151 /* see above */
152 bool is_inputmenu = TRUE;
153 int y = ItemToRow(choice);
154 int code = TRUE;
155 int max_len = dlg_max_input(MAX((int) strlen(items->text) + 1, MAX_LEN));
156
157 result = dlg_malloc(char, (size_t) max_len);
158 assert_ptr(result, "input_menu_edit");
159
160 /* original item is used to initialize the input string. */
161 result[0] = '\0';
162 strcpy(result, items->text);
163
164 print_item(data, data->menu, items, choice, Editing, TRUE);
165
166 /* taken out of inputbox.c - but somewhat modified */
167 for (;;) {
168 if (!first)
169 key = dlg_mouse_wgetch(data->menu, &fkey);
170 if (dlg_edit_string(result, &offset, key, fkey, first)) {
171 dlg_show_string(data->menu, result, offset, inputbox_attr,
172 y,
173 data->item_x + 1,
174 data->menu_width - data->item_x - 3,
175 FALSE, first);
176 first = FALSE;
177 } else if (key == ESC || key == TAB) {
178 code = FALSE;
179 break;
180 } else {
181 break;
182 }
183 }
184 print_item(data, data->menu, items, choice, Selected, TRUE);
185 (void) wattrset(data->menu, save);
186
187 *resultp = result;
188 return code;
189 }
190
191 static int
handle_button(int code,DIALOG_LISTITEM * items,int choice)192 handle_button(int code, DIALOG_LISTITEM * items, int choice)
193 {
194 char *help_result;
195
196 switch (code) {
197 case DLG_EXIT_OK: /* FALLTHRU */
198 case DLG_EXIT_EXTRA:
199 dlg_add_string(items[choice].name);
200 break;
201 case DLG_EXIT_HELP:
202 dlg_add_help_listitem(&code, &help_result, &items[choice]);
203 dlg_add_string(help_result);
204 break;
205 }
206 return code;
207 }
208
209 int
dlg_renamed_menutext(DIALOG_LISTITEM * items,int current,char * newtext)210 dlg_renamed_menutext(DIALOG_LISTITEM * items, int current, char *newtext)
211 {
212 if (dialog_vars.input_result)
213 dialog_vars.input_result[0] = '\0';
214 dlg_add_result("RENAMED ");
215 dlg_add_string(items[current].name);
216 dlg_add_result(" ");
217 dlg_add_string(newtext);
218 return DLG_EXIT_EXTRA;
219 }
220
221 int
dlg_dummy_menutext(DIALOG_LISTITEM * items,int current,char * newtext)222 dlg_dummy_menutext(DIALOG_LISTITEM * items, int current, char *newtext)
223 {
224 (void) items;
225 (void) current;
226 (void) newtext;
227 return DLG_EXIT_ERROR;
228 }
229
230 static void
print_menu(ALL_DATA * data,int choice,int scrollamt,int max_choice,bool is_inputmenu)231 print_menu(ALL_DATA * data, int choice, int scrollamt, int max_choice, bool is_inputmenu)
232 {
233 int i;
234
235 for (i = 0; i < max_choice; i++) {
236 print_item(data,
237 data->menu,
238 &data->items[i + scrollamt],
239 i,
240 (i == choice) ? Selected : Unselected,
241 is_inputmenu);
242 }
243
244 /* Clean bottom lines */
245 if (is_inputmenu) {
246 int spare_lines, x_count;
247 spare_lines = data->menu_height % INPUT_ROWS;
248 (void) wattrset(data->menu, menubox_attr);
249 for (; spare_lines; spare_lines--) {
250 wmove(data->menu, data->menu_height - spare_lines, 0);
251 for (x_count = 0; x_count < data->menu_width;
252 x_count++) {
253 waddch(data->menu, ' ');
254 }
255 }
256 }
257
258 (void) wnoutrefresh(data->menu);
259
260 dlg_draw_scrollbar(data->dialog,
261 scrollamt,
262 scrollamt,
263 scrollamt + max_choice,
264 data->item_no,
265 data->box_x,
266 data->box_x + data->menu_width,
267 data->box_y,
268 data->box_y + data->menu_height + 1,
269 menubox_border2_attr,
270 menubox_border_attr);
271 }
272
273 static bool
check_hotkey(DIALOG_LISTITEM * items,int choice)274 check_hotkey(DIALOG_LISTITEM * items, int choice)
275 {
276 bool result = FALSE;
277
278 if (dlg_match_char(dlg_last_getc(),
279 (dialog_vars.no_tags
280 ? items[choice].text
281 : items[choice].name))) {
282 result = TRUE;
283 }
284 return result;
285 }
286
287 /*
288 * This is an alternate interface to 'menu' which allows the application
289 * to read the list item states back directly without putting them in the
290 * output buffer.
291 */
292 int
dlg_menu(const char * title,const char * cprompt,int height,int width,int menu_height,int item_no,DIALOG_LISTITEM * items,int * current_item,DIALOG_INPUTMENU rename_menutext)293 dlg_menu(const char *title,
294 const char *cprompt,
295 int height,
296 int width,
297 int menu_height,
298 int item_no,
299 DIALOG_LISTITEM * items,
300 int *current_item,
301 DIALOG_INPUTMENU rename_menutext)
302 {
303 /* *INDENT-OFF* */
304 static DLG_KEYS_BINDING binding[] = {
305 HELPKEY_BINDINGS,
306 ENTERKEY_BINDINGS,
307 DLG_KEYS_DATA( DLGK_FIELD_NEXT, ' ' ),
308 DLG_KEYS_DATA( DLGK_FIELD_NEXT, KEY_RIGHT ),
309 DLG_KEYS_DATA( DLGK_FIELD_NEXT, TAB ),
310 DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_BTAB ),
311 DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_LEFT ),
312 DLG_KEYS_DATA( DLGK_ITEM_NEXT, '+' ),
313 DLG_KEYS_DATA( DLGK_ITEM_NEXT, KEY_DOWN ),
314 DLG_KEYS_DATA( DLGK_ITEM_NEXT, CHR_NEXT ),
315 DLG_KEYS_DATA( DLGK_ITEM_PREV, '-' ),
316 DLG_KEYS_DATA( DLGK_ITEM_PREV, KEY_UP ),
317 DLG_KEYS_DATA( DLGK_ITEM_PREV, CHR_PREVIOUS ),
318 DLG_KEYS_DATA( DLGK_PAGE_FIRST, KEY_HOME ),
319 DLG_KEYS_DATA( DLGK_PAGE_LAST, KEY_END ),
320 DLG_KEYS_DATA( DLGK_PAGE_LAST, KEY_LL ),
321 DLG_KEYS_DATA( DLGK_PAGE_NEXT, KEY_NPAGE ),
322 DLG_KEYS_DATA( DLGK_PAGE_PREV, KEY_PPAGE ),
323 END_KEYS_BINDING
324 };
325 static DLG_KEYS_BINDING binding2[] = {
326 INPUTSTR_BINDINGS,
327 HELPKEY_BINDINGS,
328 ENTERKEY_BINDINGS,
329 END_KEYS_BINDING
330 };
331 /* *INDENT-ON* */
332
333 #ifdef KEY_RESIZE
334 int old_height = height;
335 int old_width = width;
336 #endif
337 ALL_DATA all;
338 int i, j, x, y, cur_x, cur_y;
339 int key = 0, fkey;
340 int button = dialog_state.visit_items ? -1 : dlg_default_button();
341 int choice = dlg_default_listitem(items);
342 int result = DLG_EXIT_UNKNOWN;
343 int scrollamt = 0;
344 int max_choice;
345 int found;
346 int use_width, name_width, text_width, list_width;
347 WINDOW *dialog, *menu;
348 char *prompt = dlg_strclone(cprompt);
349 const char **buttons = dlg_ok_labels();
350 bool is_inputmenu = ((rename_menutext != 0)
351 && (rename_menutext != dlg_dummy_menutext));
352
353 all.items = items;
354 all.item_no = item_no;
355
356 dlg_does_output();
357 dlg_tab_correct_str(prompt);
358
359 #ifdef KEY_RESIZE
360 retry:
361 #endif
362
363 all.menu_height = menu_height;
364 use_width = dlg_calc_list_width(item_no, items) + 10;
365 use_width = MAX(26, use_width);
366 if (all.menu_height == 0) {
367 /* calculate height without items (4) */
368 dlg_auto_size(title, prompt, &height, &width, MIN_HIGH, use_width);
369 dlg_calc_listh(&height, &all.menu_height, item_no);
370 } else {
371 dlg_auto_size(title, prompt,
372 &height, &width,
373 MIN_HIGH + all.menu_height, use_width);
374 }
375 dlg_button_layout(buttons, &width);
376 dlg_print_size(height, width);
377 dlg_ctl_size(height, width);
378
379 x = dlg_box_x_ordinate(width);
380 y = dlg_box_y_ordinate(height);
381
382 dialog = dlg_new_window(height, width, y, x);
383 all.dialog = dialog;
384
385 dlg_register_window(dialog, "menubox", binding);
386 dlg_register_buttons(dialog, "menubox", buttons);
387
388 dlg_mouse_setbase(x, y);
389
390 dlg_draw_box2(dialog, 0, 0, height, width, dialog_attr, border_attr, border2_attr);
391 dlg_draw_bottom_box2(dialog, border_attr, border2_attr, dialog_attr);
392 dlg_draw_title(dialog, title);
393
394 (void) wattrset(dialog, dialog_attr);
395 dlg_print_autowrap(dialog, prompt, height, width);
396
397 all.menu_width = width - 6;
398 getyx(dialog, cur_y, cur_x);
399 all.box_y = cur_y + 1;
400 all.box_x = (width - all.menu_width) / 2 - 1;
401
402 /*
403 * After displaying the prompt, we know how much space we really have.
404 * Limit the list to avoid overwriting the ok-button.
405 */
406 if (all.menu_height + MIN_HIGH > height - cur_y)
407 all.menu_height = height - MIN_HIGH - cur_y;
408 if (all.menu_height <= 0)
409 all.menu_height = 1;
410
411 /* Find out maximal number of displayable items at once. */
412 max_choice = MIN(all.menu_height,
413 RowHeight(item_no));
414 if (is_inputmenu)
415 max_choice /= INPUT_ROWS;
416
417 /* create new window for the menu */
418 menu = dlg_sub_window(dialog, all.menu_height, all.menu_width,
419 y + all.box_y + 1,
420 x + all.box_x + 1);
421 all.menu = menu;
422
423 dlg_register_window(menu, "menu", binding2);
424 dlg_register_buttons(menu, "menu", buttons);
425
426 /* draw a box around the menu items */
427 dlg_draw_box(dialog,
428 all.box_y, all.box_x,
429 all.menu_height + 2, all.menu_width + 2,
430 menubox_border_attr, menubox_border2_attr);
431
432 name_width = 0;
433 text_width = 0;
434
435 /* Find length of longest item to center menu *
436 * only if --menu was given, using --inputmenu *
437 * won't be centered. */
438 for (i = 0; i < item_no; i++) {
439 name_width = MAX(name_width, dlg_count_columns(items[i].name));
440 text_width = MAX(text_width, dlg_count_columns(items[i].text));
441 }
442
443 /* If the name+text is wider than the list is allowed, then truncate
444 * one or both of them. If the name is no wider than 30% of the list,
445 * leave it intact.
446 *
447 * FIXME: the gutter width and name/list ratio should be configurable.
448 */
449 use_width = (all.menu_width - GUTTER);
450 if (dialog_vars.no_tags) {
451 list_width = MIN(use_width, text_width);
452 } else if (dialog_vars.no_items) {
453 list_width = MIN(use_width, name_width);
454 } else {
455 if (text_width >= 0
456 && name_width >= 0
457 && use_width > 0
458 && text_width + name_width > use_width) {
459 int need = (int) (0.30 * use_width);
460 if (name_width > need) {
461 int want = (int) (use_width
462 * ((double) name_width)
463 / (text_width + name_width));
464 name_width = (want > need) ? want : need;
465 }
466 text_width = use_width - name_width;
467 }
468 list_width = (text_width + name_width);
469 }
470
471 all.tag_x = (is_inputmenu
472 ? 0
473 : (use_width - list_width) / 2);
474 all.item_x = ((dialog_vars.no_tags
475 ? 0
476 : (dialog_vars.no_items
477 ? 0
478 : (GUTTER + name_width)))
479 + all.tag_x);
480
481 if (choice - scrollamt >= max_choice) {
482 scrollamt = choice - (max_choice - 1);
483 choice = max_choice - 1;
484 }
485
486 print_menu(&all, choice, scrollamt, max_choice, is_inputmenu);
487
488 /* register the new window, along with its borders */
489 dlg_mouse_mkbigregion(all.box_y + 1, all.box_x,
490 all.menu_height + 2, all.menu_width + 2,
491 KEY_MAX, 1, 1, 1 /* by lines */ );
492
493 dlg_draw_buttons(dialog, height - 2, 0, buttons, button, FALSE, width);
494
495 dlg_trace_win(dialog);
496 while (result == DLG_EXIT_UNKNOWN) {
497 if (button < 0) /* --visit-items */
498 wmove(dialog,
499 all.box_y + ItemToRow(choice) + 1,
500 all.box_x + all.tag_x + 1);
501
502 key = dlg_mouse_wgetch(dialog, &fkey);
503 if (dlg_result_key(key, fkey, &result))
504 break;
505
506 found = FALSE;
507 if (fkey) {
508 /*
509 * Allow a mouse-click on a box to switch selection to that box.
510 * Handling a button click is a little more complicated, since we
511 * push a KEY_ENTER back onto the input stream so we'll put the
512 * cursor at the right place before handling the "keypress".
513 */
514 if (key >= DLGK_MOUSE(KEY_MAX)) {
515 key -= DLGK_MOUSE(KEY_MAX);
516 i = RowToItem(key);
517 if (i < max_choice) {
518 found = TRUE;
519 } else {
520 beep();
521 continue;
522 }
523 } else if (is_DLGK_MOUSE(key)
524 && dlg_ok_buttoncode(key - M_EVENT) >= 0) {
525 button = (key - M_EVENT);
526 ungetch('\n');
527 continue;
528 }
529 } else {
530 /*
531 * Check if key pressed matches first character of any item tag in
532 * list. If there is more than one match, we will cycle through
533 * each one as the same key is pressed repeatedly.
534 */
535 if (button < 0 || !dialog_state.visit_items) {
536 for (j = scrollamt + choice + 1; j < item_no; j++) {
537 if (check_hotkey(items, j)) {
538 found = TRUE;
539 i = j - scrollamt;
540 break;
541 }
542 }
543 if (!found) {
544 for (j = 0; j <= scrollamt + choice; j++) {
545 if (check_hotkey(items, j)) {
546 found = TRUE;
547 i = j - scrollamt;
548 break;
549 }
550 }
551 }
552 if (found)
553 dlg_flush_getc();
554 } else if ((j = dlg_char_to_button(key, buttons)) >= 0) {
555 button = j;
556 ungetch('\n');
557 continue;
558 }
559
560 /*
561 * A single digit (1-9) positions the selection to that line in the
562 * current screen.
563 */
564 if (!found
565 && (key <= '9')
566 && (key > '0')
567 && (key - '1' < max_choice)) {
568 found = TRUE;
569 i = key - '1';
570 }
571 }
572
573 if (!found && fkey) {
574 found = TRUE;
575 switch (key) {
576 case DLGK_PAGE_FIRST:
577 i = -scrollamt;
578 break;
579 case DLGK_PAGE_LAST:
580 i = item_no - 1 - scrollamt;
581 break;
582 case DLGK_MOUSE(KEY_PPAGE):
583 case DLGK_PAGE_PREV:
584 if (choice)
585 i = 0;
586 else if (scrollamt != 0)
587 i = -MIN(scrollamt, max_choice);
588 else
589 continue;
590 break;
591 case DLGK_MOUSE(KEY_NPAGE):
592 case DLGK_PAGE_NEXT:
593 i = MIN(choice + max_choice, item_no - scrollamt - 1);
594 break;
595 case DLGK_ITEM_PREV:
596 i = choice - 1;
597 if (choice == 0 && scrollamt == 0)
598 continue;
599 break;
600 case DLGK_ITEM_NEXT:
601 i = choice + 1;
602 if (scrollamt + choice >= item_no - 1)
603 continue;
604 break;
605 default:
606 found = FALSE;
607 break;
608 }
609 }
610
611 if (found) {
612 if (i != choice) {
613 getyx(dialog, cur_y, cur_x);
614 if (i < 0 || i >= max_choice) {
615 if (i < 0) {
616 scrollamt += i;
617 choice = 0;
618 } else {
619 choice = max_choice - 1;
620 scrollamt += (i - max_choice + 1);
621 }
622 print_menu(&all, choice, scrollamt, max_choice, is_inputmenu);
623 } else {
624 choice = i;
625 print_menu(&all, choice, scrollamt, max_choice, is_inputmenu);
626 (void) wmove(dialog, cur_y, cur_x);
627 wrefresh(dialog);
628 }
629 }
630 continue; /* wait for another key press */
631 }
632
633 if (fkey) {
634 switch (key) {
635 case DLGK_FIELD_PREV:
636 button = dlg_prev_button(buttons, button);
637 dlg_draw_buttons(dialog, height - 2, 0, buttons, button,
638 FALSE, width);
639 break;
640 case DLGK_FIELD_NEXT:
641 button = dlg_next_button(buttons, button);
642 dlg_draw_buttons(dialog, height - 2, 0, buttons, button,
643 FALSE, width);
644 break;
645 case DLGK_ENTER:
646 if (is_inputmenu)
647 result = dlg_ok_buttoncode(button);
648 else
649 result = dlg_enter_buttoncode(button);
650
651 /*
652 * If dlg_menu() is called from dialog_menu(), we want to
653 * capture the results into dialog_vars.input_result.
654 */
655 if (result == DLG_EXIT_ERROR) {
656 result = DLG_EXIT_UNKNOWN;
657 } else if (is_inputmenu
658 || rename_menutext == dlg_dummy_menutext) {
659 result = handle_button(result,
660 items,
661 scrollamt + choice);
662 }
663
664 /*
665 * If we have a rename_menutext function, interpret the Extra
666 * button as a request to rename the menu's text. If that
667 * function doesn't return "Unknown", we will exit from this
668 * function. Usually that is done for dialog_menu(), so the
669 * shell script can use the updated value. If it does return
670 * "Unknown", update the list item only. A direct caller of
671 * dlg_menu() can free the renamed value - we cannot.
672 */
673 if (is_inputmenu && result == DLG_EXIT_EXTRA) {
674 char *tmp;
675
676 if (input_menu_edit(&all,
677 &items[scrollamt + choice],
678 choice,
679 &tmp)) {
680 result = rename_menutext(items, scrollamt + choice, tmp);
681 if (result == DLG_EXIT_UNKNOWN) {
682 items[scrollamt + choice].text = tmp;
683 } else {
684 free(tmp);
685 }
686 } else {
687 result = DLG_EXIT_UNKNOWN;
688 print_item(&all,
689 menu,
690 &items[scrollamt + choice],
691 choice,
692 Selected,
693 is_inputmenu);
694 (void) wnoutrefresh(menu);
695 free(tmp);
696 }
697
698 if (result == DLG_EXIT_UNKNOWN) {
699 dlg_draw_buttons(dialog, height - 2, 0,
700 buttons, button, FALSE, width);
701 }
702 }
703 break;
704 #ifdef KEY_RESIZE
705 case KEY_RESIZE:
706 /* reset data */
707 height = old_height;
708 width = old_width;
709 /* repaint */
710 dlg_clear();
711 dlg_del_window(dialog);
712 refresh();
713 dlg_mouse_free_regions();
714 goto retry;
715 #endif
716 default:
717 flash();
718 break;
719 }
720 }
721 }
722
723 dlg_mouse_free_regions();
724 dlg_unregister_window(menu);
725 dlg_del_window(dialog);
726 free(prompt);
727
728 *current_item = scrollamt + choice;
729 return result;
730 }
731
732 /*
733 * Display a menu for choosing among a number of options
734 */
735 int
dialog_menu(const char * title,const char * cprompt,int height,int width,int menu_height,int item_no,char ** items)736 dialog_menu(const char *title,
737 const char *cprompt,
738 int height,
739 int width,
740 int menu_height,
741 int item_no,
742 char **items)
743 {
744 int result;
745 int choice;
746 int i, j;
747 DIALOG_LISTITEM *listitems;
748
749 listitems = dlg_calloc(DIALOG_LISTITEM, (size_t) item_no + 1);
750 assert_ptr(listitems, "dialog_menu");
751
752 for (i = j = 0; i < item_no; ++i) {
753 listitems[i].name = items[j++];
754 listitems[i].text = (dialog_vars.no_items
755 ? dlg_strempty()
756 : items[j++]);
757 listitems[i].help = ((dialog_vars.item_help)
758 ? items[j++]
759 : dlg_strempty());
760 }
761 dlg_align_columns(&listitems[0].text, sizeof(DIALOG_LISTITEM), item_no);
762
763 result = dlg_menu(title,
764 cprompt,
765 height,
766 width,
767 menu_height,
768 item_no,
769 listitems,
770 &choice,
771 (dialog_vars.input_menu
772 ? dlg_renamed_menutext
773 : dlg_dummy_menutext));
774
775 dlg_free_columns(&listitems[0].text, sizeof(DIALOG_LISTITEM), item_no);
776 free(listitems);
777 return result;
778 }
779