1 /*
2 * $Id: menubox.c,v 1.175 2022/04/05 00:14:56 tom Exp $
3 *
4 * menubox.c -- implements the menu box
5 *
6 * Copyright 2000-2021,2022 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 <dlg_internals.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 climit = (data->item_x - data->tag_x - GUTTER);
72 int my_width = data->menu_width;
73 int my_x = data->item_x;
74 int my_y = ItemToRow(choice);
75 bool both = (!dialog_vars.no_tags && !dialog_vars.no_items);
76 bool first = TRUE;
77 chtype bordchar;
78 const char *show = (dialog_vars.no_items
79 ? item->name
80 : item->text);
81
82 switch (selected) {
83 default:
84 case Unselected:
85 bordchar = item_attr;
86 break;
87 case Selected:
88 bordchar = item_selected_attr;
89 break;
90 case Editing:
91 bordchar = dialog_attr;
92 break;
93 }
94
95 /* Clear 'residue' of last item and mark current current item */
96 if (is_inputmenu) {
97 int n;
98
99 dlg_attrset(win, (selected != Unselected) ? item_selected_attr : item_attr);
100 for (n = my_y - 1; n < my_y + INPUT_ROWS - 1; n++) {
101 wmove(win, n, 0);
102 wprintw(win, "%*s", my_width, " ");
103 }
104 } else {
105 dlg_attrset(win, menubox_attr);
106 wmove(win, my_y, 0);
107 wprintw(win, "%*s", my_width, " ");
108 }
109
110 /* highlight first char of the tag to be special */
111 if (both) {
112 (void) wmove(win, my_y, data->tag_x);
113 dlg_print_listitem(win, item->name, climit, first, selected);
114 first = FALSE;
115 }
116
117 /* Draw the input field box (only for inputmenu) */
118 (void) wmove(win, my_y, my_x);
119 if (is_inputmenu) {
120 my_width -= 1;
121 dlg_draw_box(win, my_y - 1, my_x, INPUT_ROWS, my_width - my_x - data->tag_x,
122 bordchar,
123 bordchar);
124 my_width -= 1;
125 ++my_x;
126 }
127
128 /* print actual item */
129 wmove(win, my_y, my_x);
130 dlg_print_listitem(win, show, my_width - my_x, first, selected);
131
132 if (selected) {
133 dlg_item_help(item->help);
134 }
135 dlg_attrset(win, save);
136 }
137
138 /*
139 * Allow the user to edit the text of a menu entry.
140 */
141 static int
input_menu_edit(ALL_DATA * data,DIALOG_LISTITEM * items,int choice,char ** resultp)142 input_menu_edit(ALL_DATA * data,
143 DIALOG_LISTITEM * items,
144 int choice,
145 char **resultp)
146 {
147 chtype save = dlg_get_attrs(data->menu);
148 char *result;
149 int offset = 0;
150 int key = 0, fkey = 0;
151 bool first = TRUE;
152 /* see above */
153 bool is_inputmenu = TRUE;
154 int y = ItemToRow(choice);
155 int code = TRUE;
156 int max_len = dlg_max_input(MAX((int) strlen(items->text) + 1, MAX_LEN));
157
158 result = dlg_malloc(char, (size_t) max_len);
159 assert_ptr(result, "input_menu_edit");
160
161 /* original item is used to initialize the input string. */
162 result[0] = '\0';
163 strcpy(result, items->text);
164
165 print_item(data, data->menu, items, choice, Editing, TRUE);
166
167 /* taken out of inputbox.c - but somewhat modified */
168 for (;;) {
169 if (!first) {
170 int check = DLG_EXIT_UNKNOWN;
171 key = dlg_mouse_wgetch(data->menu, &fkey);
172 if (dlg_result_key(key, fkey, &check)) {
173 if (check == DLG_EXIT_CANCEL) {
174 code = FALSE;
175 break;
176 } else {
177 flash();
178 }
179 }
180 }
181 if (dlg_edit_string(result, &offset, key, fkey, first)) {
182 dlg_show_string(data->menu, result, offset, inputbox_attr,
183 y,
184 data->item_x + 1,
185 data->menu_width - data->item_x - 3,
186 FALSE, first);
187 first = FALSE;
188 } else if (key == ESC || key == TAB) {
189 code = FALSE;
190 break;
191 } else {
192 break;
193 }
194 }
195 print_item(data, data->menu, items, choice, Selected, TRUE);
196 dlg_attrset(data->menu, save);
197
198 *resultp = result;
199 return code;
200 }
201
202 static int
handle_button(int code,DIALOG_LISTITEM * items,int choice)203 handle_button(int code, DIALOG_LISTITEM * items, int choice)
204 {
205 char *help_result;
206
207 switch (code) {
208 case DLG_EXIT_OK: /* FALLTHRU */
209 case DLG_EXIT_EXTRA:
210 dlg_add_string(items[choice].name);
211 break;
212 case DLG_EXIT_HELP:
213 dlg_add_help_listitem(&code, &help_result, &items[choice]);
214 dlg_add_string(help_result);
215 break;
216 }
217 AddLastKey();
218 return code;
219 }
220
221 int
dlg_renamed_menutext(DIALOG_LISTITEM * items,int current,char * newtext)222 dlg_renamed_menutext(DIALOG_LISTITEM * items, int current, char *newtext)
223 {
224 if (dialog_vars.input_result)
225 dialog_vars.input_result[0] = '\0';
226 dlg_add_result("RENAMED ");
227 dlg_add_string(items[current].name);
228 dlg_add_result(" ");
229 dlg_add_string(newtext);
230 AddLastKey();
231 return DLG_EXIT_EXTRA;
232 }
233
234 int
dlg_dummy_menutext(DIALOG_LISTITEM * items,int current,char * newtext)235 dlg_dummy_menutext(DIALOG_LISTITEM * items, int current, char *newtext)
236 {
237 (void) items;
238 (void) current;
239 (void) newtext;
240 return DLG_EXIT_ERROR;
241 }
242
243 static void
print_menu(ALL_DATA * data,int choice,int scrollamt,int max_choice,int max_items,bool is_inputmenu)244 print_menu(ALL_DATA * data,
245 int choice,
246 int scrollamt,
247 int max_choice,
248 int max_items,
249 bool is_inputmenu)
250 {
251 int i;
252
253 for (i = 0; i < max_choice; i++) {
254 int ii = i + scrollamt;
255 if (ii < max_items)
256 print_item(data,
257 data->menu,
258 &data->items[ii],
259 i,
260 (i == choice) ? Selected : Unselected,
261 is_inputmenu);
262 }
263
264 /* Clean bottom lines */
265 if (is_inputmenu) {
266 int spare_lines, x_count;
267 spare_lines = data->menu_height % INPUT_ROWS;
268 dlg_attrset(data->menu, menubox_attr);
269 for (; spare_lines; spare_lines--) {
270 wmove(data->menu, data->menu_height - spare_lines, 0);
271 for (x_count = 0; x_count < data->menu_width;
272 x_count++) {
273 waddch(data->menu, ' ');
274 }
275 }
276 }
277
278 (void) wnoutrefresh(data->menu);
279
280 dlg_draw_scrollbar(data->dialog,
281 scrollamt,
282 scrollamt,
283 scrollamt + max_choice,
284 data->item_no,
285 data->box_x,
286 data->box_x + data->menu_width,
287 data->box_y,
288 data->box_y + data->menu_height + 1,
289 menubox_border2_attr,
290 menubox_border_attr);
291 }
292
293 static bool
check_hotkey(DIALOG_LISTITEM * items,int choice)294 check_hotkey(DIALOG_LISTITEM * items, int choice)
295 {
296 bool result = FALSE;
297
298 if (dlg_match_char(dlg_last_getc(),
299 (dialog_vars.no_tags
300 ? items[choice].text
301 : items[choice].name))) {
302 result = TRUE;
303 }
304 return result;
305 }
306
307 /*
308 * This is an alternate interface to 'menu' which allows the application
309 * to read the list item states back directly without putting them in the
310 * output buffer.
311 */
312 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)313 dlg_menu(const char *title,
314 const char *cprompt,
315 int height,
316 int width,
317 int menu_height,
318 int item_no,
319 DIALOG_LISTITEM * items,
320 int *current_item,
321 DIALOG_INPUTMENU rename_menutext)
322 {
323 /* *INDENT-OFF* */
324 static DLG_KEYS_BINDING binding[] = {
325 HELPKEY_BINDINGS,
326 ENTERKEY_BINDINGS,
327 TOGGLEKEY_BINDINGS,
328 DLG_KEYS_DATA( DLGK_FIELD_NEXT, KEY_RIGHT ),
329 DLG_KEYS_DATA( DLGK_FIELD_NEXT, TAB ),
330 DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_BTAB ),
331 DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_LEFT ),
332 DLG_KEYS_DATA( DLGK_ITEM_NEXT, '+' ),
333 DLG_KEYS_DATA( DLGK_ITEM_NEXT, KEY_DOWN ),
334 DLG_KEYS_DATA( DLGK_ITEM_NEXT, CHR_NEXT ),
335 DLG_KEYS_DATA( DLGK_ITEM_PREV, '-' ),
336 DLG_KEYS_DATA( DLGK_ITEM_PREV, KEY_UP ),
337 DLG_KEYS_DATA( DLGK_ITEM_PREV, CHR_PREVIOUS ),
338 DLG_KEYS_DATA( DLGK_PAGE_FIRST, KEY_HOME ),
339 DLG_KEYS_DATA( DLGK_PAGE_LAST, KEY_END ),
340 DLG_KEYS_DATA( DLGK_PAGE_LAST, KEY_LL ),
341 DLG_KEYS_DATA( DLGK_PAGE_NEXT, KEY_NPAGE ),
342 DLG_KEYS_DATA( DLGK_PAGE_PREV, KEY_PPAGE ),
343 END_KEYS_BINDING
344 };
345 static DLG_KEYS_BINDING binding2[] = {
346 INPUTSTR_BINDINGS,
347 HELPKEY_BINDINGS,
348 ENTERKEY_BINDINGS,
349 END_KEYS_BINDING
350 };
351 /* *INDENT-ON* */
352
353 #ifdef KEY_RESIZE
354 int old_LINES = LINES;
355 int old_COLS = COLS;
356 int old_height = height;
357 int old_width = width;
358 #endif
359 ALL_DATA all;
360 int i, j, x, y, cur_x, cur_y;
361 int fkey;
362 int button = dialog_state.visit_items ? -1 : dlg_default_button();
363 int choice = dlg_default_listitem(items);
364 int result = DLG_EXIT_UNKNOWN;
365 int scrollamt = 0;
366 int max_choice;
367 int use_width, name_width, text_width, list_width;
368 WINDOW *dialog, *menu;
369 char *prompt = 0;
370 const char **buttons = dlg_ok_labels();
371 bool is_inputmenu = ((rename_menutext != 0)
372 && (rename_menutext != dlg_dummy_menutext));
373
374 DLG_TRACE(("# menubox args:\n"));
375 DLG_TRACE2S("title", title);
376 DLG_TRACE2S("message", cprompt);
377 DLG_TRACE2N("height", height);
378 DLG_TRACE2N("width", width);
379 DLG_TRACE2N("lheight", menu_height);
380 DLG_TRACE2N("llength", item_no);
381 /* FIXME dump the items[][] too */
382 DLG_TRACE2N("rename", rename_menutext != 0);
383
384 dialog_state.plain_buttons = TRUE;
385
386 all.items = items;
387 all.item_no = item_no;
388
389 dlg_does_output();
390
391 #ifdef KEY_RESIZE
392 retry:
393 #endif
394
395 prompt = dlg_strclone(cprompt);
396 dlg_tab_correct_str(prompt);
397
398 all.menu_height = menu_height;
399 use_width = dlg_calc_list_width(item_no, items) + 10;
400 use_width = MAX(26, use_width);
401 if (all.menu_height == 0) {
402 /* calculate height without items (4) */
403 dlg_auto_size(title, prompt, &height, &width, MIN_HIGH, use_width);
404 dlg_calc_listh(&height, &all.menu_height, item_no);
405 } else {
406 dlg_auto_size(title, prompt,
407 &height, &width,
408 MIN_HIGH + all.menu_height, use_width);
409 }
410 dlg_button_layout(buttons, &width);
411 dlg_print_size(height, width);
412 dlg_ctl_size(height, width);
413
414 x = dlg_box_x_ordinate(width);
415 y = dlg_box_y_ordinate(height);
416
417 dialog = dlg_new_window(height, width, y, x);
418 all.dialog = dialog;
419
420 dlg_register_window(dialog, "menubox", binding);
421 dlg_register_buttons(dialog, "menubox", buttons);
422
423 dlg_mouse_setbase(x, y);
424
425 dlg_draw_box2(dialog, 0, 0, height, width, dialog_attr, border_attr, border2_attr);
426 dlg_draw_bottom_box2(dialog, border_attr, border2_attr, dialog_attr);
427 dlg_draw_title(dialog, title);
428
429 dlg_attrset(dialog, dialog_attr);
430 dlg_print_autowrap(dialog, prompt, height, width);
431
432 all.menu_width = width - 6;
433 getyx(dialog, cur_y, cur_x);
434 all.box_y = cur_y + 1;
435 all.box_x = (width - all.menu_width) / 2 - 1;
436
437 /*
438 * After displaying the prompt, we know how much space we really have.
439 * Limit the list to avoid overwriting the ok-button.
440 */
441 all.menu_height = height - MIN_HIGH - cur_y;
442 if (all.menu_height <= 0)
443 all.menu_height = 1;
444
445 /* Find out maximal number of displayable items at once. */
446 max_choice = MIN(all.menu_height,
447 RowHeight(item_no));
448 if (is_inputmenu)
449 max_choice /= INPUT_ROWS;
450
451 /* create new window for the menu */
452 menu = dlg_sub_window(dialog, all.menu_height, all.menu_width,
453 y + all.box_y + 1,
454 x + all.box_x + 1);
455 all.menu = menu;
456
457 dlg_register_window(menu, "menu", binding2);
458 dlg_register_buttons(menu, "menu", buttons);
459
460 /* draw a box around the menu items */
461 dlg_draw_box(dialog,
462 all.box_y, all.box_x,
463 all.menu_height + 2, all.menu_width + 2,
464 menubox_border_attr, menubox_border2_attr);
465
466 name_width = 0;
467 text_width = 0;
468
469 /* Find length of longest item to center menu *
470 * only if --menu was given, using --inputmenu *
471 * won't be centered. */
472 for (i = 0; i < item_no; i++) {
473 name_width = MAX(name_width, dlg_count_columns(items[i].name));
474 text_width = MAX(text_width, dlg_count_columns(items[i].text));
475 }
476
477 /* If the name+text is wider than the list is allowed, then truncate
478 * one or both of them. If the name is no wider than 30% of the list,
479 * leave it intact.
480 *
481 * FIXME: the gutter width and name/list ratio should be configurable.
482 */
483 use_width = (all.menu_width - GUTTER);
484 if (dialog_vars.no_tags) {
485 list_width = MIN(use_width, text_width);
486 } else if (dialog_vars.no_items) {
487 list_width = MIN(use_width, name_width);
488 } else {
489 if (text_width >= 0
490 && name_width >= 0
491 && use_width > 0
492 && text_width + name_width > use_width) {
493 int need = (int) (0.30 * use_width);
494 if (name_width > need) {
495 int want = (int) (use_width
496 * ((double) name_width)
497 / (text_width + name_width));
498 name_width = (want > need) ? want : need;
499 }
500 text_width = use_width - name_width;
501 }
502 list_width = (text_width + name_width);
503 }
504
505 all.tag_x = (is_inputmenu
506 ? 0
507 : (use_width - list_width) / 2);
508 all.item_x = ((dialog_vars.no_tags
509 ? 0
510 : (dialog_vars.no_items
511 ? 0
512 : (GUTTER + name_width)))
513 + all.tag_x);
514
515 if (choice - scrollamt >= max_choice) {
516 scrollamt = choice - (max_choice - 1);
517 choice = max_choice - 1;
518 }
519 #define PrintMenu() \
520 print_menu(&all, choice, scrollamt, max_choice, item_no, is_inputmenu)
521 PrintMenu();
522
523 /* register the new window, along with its borders */
524 dlg_mouse_mkbigregion(all.box_y + 1, all.box_x,
525 all.menu_height + 2, all.menu_width + 2,
526 KEY_MAX, 1, 1, 1 /* by lines */ );
527
528 dlg_draw_buttons(dialog, height - 2, 0, buttons, button, FALSE, width);
529
530 dlg_trace_win(dialog);
531
532 while (result == DLG_EXIT_UNKNOWN) {
533 int key, found;
534
535 if (button < 0) /* --visit-items */
536 wmove(dialog,
537 all.box_y + ItemToRow(choice) + 1,
538 all.box_x + all.tag_x + 1);
539
540 key = dlg_mouse_wgetch(dialog, &fkey);
541 if (dlg_result_key(key, fkey, &result)) {
542 if (!dlg_button_key(result, &button, &key, &fkey))
543 break;
544 }
545
546 found = FALSE;
547 if (fkey) {
548 /*
549 * Allow a mouse-click on a box to switch selection to that box.
550 * Handling a button click is a little more complicated, since we
551 * push a KEY_ENTER back onto the input stream so we'll put the
552 * cursor at the right place before handling the "keypress".
553 */
554 if (key >= DLGK_MOUSE(KEY_MAX)) {
555 key -= DLGK_MOUSE(KEY_MAX);
556 i = RowToItem(key);
557 if (i < max_choice) {
558 found = TRUE;
559 } else {
560 beep();
561 continue;
562 }
563 } else if (is_DLGK_MOUSE(key)
564 && dlg_ok_buttoncode(key - M_EVENT) >= 0) {
565 button = (key - M_EVENT);
566 ungetch('\n');
567 continue;
568 }
569 } else {
570 /*
571 * Check if key pressed matches first character of any item tag in
572 * list. If there is more than one match, we will cycle through
573 * each one as the same key is pressed repeatedly.
574 */
575 if (button < 0 || !dialog_state.visit_items) {
576 for (j = scrollamt + choice + 1; j < item_no; j++) {
577 if (check_hotkey(items, j)) {
578 found = TRUE;
579 i = j - scrollamt;
580 break;
581 }
582 }
583 if (!found) {
584 for (j = 0; j <= scrollamt + choice; j++) {
585 if (check_hotkey(items, j)) {
586 found = TRUE;
587 i = j - scrollamt;
588 break;
589 }
590 }
591 }
592 if (found)
593 dlg_flush_getc();
594 } else if ((j = dlg_char_to_button(key, buttons)) >= 0) {
595 button = j;
596 ungetch('\n');
597 continue;
598 }
599
600 /*
601 * A single digit (1-9) positions the selection to that line in the
602 * current screen.
603 */
604 if (!found
605 && (key <= '9')
606 && (key > '0')
607 && (key - '1' < max_choice)) {
608 found = TRUE;
609 i = key - '1';
610 }
611 }
612
613 if (!found && fkey) {
614 found = TRUE;
615 switch (key) {
616 case DLGK_PAGE_FIRST:
617 i = -scrollamt;
618 break;
619 case DLGK_PAGE_LAST:
620 i = item_no - 1 - scrollamt;
621 break;
622 case DLGK_MOUSE(KEY_PPAGE):
623 case DLGK_PAGE_PREV:
624 if (choice)
625 i = 0;
626 else if (scrollamt != 0)
627 i = -MIN(scrollamt, max_choice);
628 else
629 continue;
630 break;
631 case DLGK_MOUSE(KEY_NPAGE):
632 case DLGK_PAGE_NEXT:
633 i = MIN(choice + max_choice, item_no - scrollamt - 1);
634 break;
635 case DLGK_ITEM_PREV:
636 i = choice - 1;
637 if (choice == 0 && scrollamt == 0)
638 continue;
639 break;
640 case DLGK_ITEM_NEXT:
641 i = choice + 1;
642 if (scrollamt + choice >= item_no - 1)
643 continue;
644 break;
645 default:
646 found = FALSE;
647 break;
648 }
649 }
650
651 if (found) {
652 if (i != choice) {
653 getyx(dialog, cur_y, cur_x);
654 if (i < 0 || i >= max_choice) {
655 if (i < 0) {
656 scrollamt += i;
657 choice = 0;
658 } else {
659 choice = max_choice - 1;
660 scrollamt += (i - max_choice + 1);
661 }
662 PrintMenu();
663 } else {
664 choice = i;
665 PrintMenu();
666 (void) wmove(dialog, cur_y, cur_x);
667 wrefresh(dialog);
668 }
669 }
670 continue; /* wait for another key press */
671 }
672
673 if (fkey) {
674 switch (key) {
675 case DLGK_FIELD_PREV:
676 button = dlg_prev_button(buttons, button);
677 dlg_draw_buttons(dialog, height - 2, 0, buttons, button,
678 FALSE, width);
679 break;
680
681 case DLGK_FIELD_NEXT:
682 button = dlg_next_button(buttons, button);
683 dlg_draw_buttons(dialog, height - 2, 0, buttons, button,
684 FALSE, width);
685 break;
686
687 case DLGK_TOGGLE:
688 case DLGK_ENTER:
689 case DLGK_LEAVE:
690 result = ((key == DLGK_LEAVE)
691 ? dlg_ok_buttoncode(button)
692 : dlg_enter_buttoncode(button));
693
694 /*
695 * If dlg_menu() is called from dialog_menu(), we want to
696 * capture the results into dialog_vars.input_result.
697 */
698 if (result == DLG_EXIT_ERROR) {
699 result = DLG_EXIT_UNKNOWN;
700 } else if (is_inputmenu
701 || rename_menutext == dlg_dummy_menutext) {
702 result = handle_button(result,
703 items,
704 scrollamt + choice);
705 }
706
707 /*
708 * If we have a rename_menutext function, interpret the Extra
709 * button as a request to rename the menu's text. If that
710 * function doesn't return "Unknown", we will exit from this
711 * function. Usually that is done for dialog_menu(), so the
712 * shell script can use the updated value. If it does return
713 * "Unknown", update the list item only. A direct caller of
714 * dlg_menu() can free the renamed value - we cannot.
715 */
716 if (is_inputmenu && result == DLG_EXIT_EXTRA) {
717 char *tmp;
718
719 if (input_menu_edit(&all,
720 &items[scrollamt + choice],
721 choice,
722 &tmp)) {
723 result = rename_menutext(items, scrollamt + choice, tmp);
724 if (result == DLG_EXIT_UNKNOWN) {
725 items[scrollamt + choice].text = tmp;
726 } else {
727 free(tmp);
728 }
729 } else {
730 result = DLG_EXIT_UNKNOWN;
731 print_item(&all,
732 menu,
733 &items[scrollamt + choice],
734 choice,
735 Selected,
736 is_inputmenu);
737 (void) wnoutrefresh(menu);
738 free(tmp);
739 }
740
741 if (result == DLG_EXIT_UNKNOWN) {
742 dlg_draw_buttons(dialog, height - 2, 0,
743 buttons, button, FALSE, width);
744 }
745 }
746 break;
747 #ifdef KEY_RESIZE
748 case KEY_RESIZE:
749 dlg_will_resize(dialog);
750 /* reset data */
751 resizeit(height, LINES);
752 resizeit(width, COLS);
753 free(prompt);
754 _dlg_resize_cleanup(dialog);
755 dlg_unregister_window(menu);
756 dlg_unregister_window(dialog);
757 /* keep position */
758 choice += scrollamt;
759 scrollamt = 0;
760 /* repaint */
761 goto retry;
762 #endif
763 default:
764 flash();
765 break;
766 }
767 }
768 }
769
770 dlg_mouse_free_regions();
771 dlg_unregister_window(menu);
772 dlg_del_window(dialog);
773 free(prompt);
774
775 *current_item = scrollamt + choice;
776
777 DLG_TRACE2N("current", *current_item);
778 return result;
779 }
780
781 /*
782 * Display a menu for choosing among a number of options
783 */
784 int
dialog_menu(const char * title,const char * cprompt,int height,int width,int menu_height,int item_no,char ** items)785 dialog_menu(const char *title,
786 const char *cprompt,
787 int height,
788 int width,
789 int menu_height,
790 int item_no,
791 char **items)
792 {
793 int result;
794 int choice;
795 int i, j;
796 DIALOG_LISTITEM *listitems;
797
798 listitems = dlg_calloc(DIALOG_LISTITEM, (size_t) item_no + 1);
799 assert_ptr(listitems, "dialog_menu");
800
801 for (i = j = 0; i < item_no; ++i) {
802 listitems[i].name = items[j++];
803 listitems[i].text = (dialog_vars.no_items
804 ? dlg_strempty()
805 : items[j++]);
806 listitems[i].help = ((dialog_vars.item_help)
807 ? items[j++]
808 : dlg_strempty());
809 }
810 dlg_align_columns(&listitems[0].text, sizeof(DIALOG_LISTITEM), item_no);
811
812 result = dlg_menu(title,
813 cprompt,
814 height,
815 width,
816 menu_height,
817 item_no,
818 listitems,
819 &choice,
820 (dialog_vars.input_menu
821 ? dlg_renamed_menutext
822 : dlg_dummy_menutext));
823
824 dlg_free_columns(&listitems[0].text, sizeof(DIALOG_LISTITEM), item_no);
825 free(listitems);
826 return result;
827 }
828