1 /* 2 * $Id: menubox.c,v 1.145 2012/12/30 21:11:02 tom Exp $ 3 * 4 * menubox.c -- implements the menu box 5 * 6 * Copyright 2000-2011,2012 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 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 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 192 handle_button(int code, DIALOG_LISTITEM * items, int choice) 193 { 194 switch (code) { 195 case DLG_EXIT_OK: /* FALLTHRU */ 196 case DLG_EXIT_EXTRA: 197 dlg_add_string(items[choice].name); 198 break; 199 case DLG_EXIT_HELP: 200 dlg_add_result("HELP "); 201 if (USE_ITEM_HELP(items[choice].help)) { 202 dlg_add_string(items[choice].help); 203 code = DLG_EXIT_ITEM_HELP; 204 } else { 205 dlg_add_string(items[choice].name); 206 } 207 break; 208 } 209 return code; 210 } 211 212 int 213 dlg_renamed_menutext(DIALOG_LISTITEM * items, int current, char *newtext) 214 { 215 if (dialog_vars.input_result) 216 dialog_vars.input_result[0] = '\0'; 217 dlg_add_result("RENAMED "); 218 dlg_add_string(items[current].name); 219 dlg_add_result(" "); 220 dlg_add_string(newtext); 221 return DLG_EXIT_EXTRA; 222 } 223 224 int 225 dlg_dummy_menutext(DIALOG_LISTITEM * items, int current, char *newtext) 226 { 227 (void) items; 228 (void) current; 229 (void) newtext; 230 return DLG_EXIT_ERROR; 231 } 232 233 static void 234 print_menu(ALL_DATA * data, int choice, int scrollamt, int max_choice, bool is_inputmenu) 235 { 236 int i; 237 238 for (i = 0; i < max_choice; i++) { 239 print_item(data, 240 data->menu, 241 &data->items[i + scrollamt], 242 i, 243 (i == choice) ? Selected : Unselected, 244 is_inputmenu); 245 } 246 247 /* Clean bottom lines */ 248 if (is_inputmenu) { 249 int spare_lines, x_count; 250 spare_lines = data->menu_height % INPUT_ROWS; 251 (void) wattrset(data->menu, menubox_attr); 252 for (; spare_lines; spare_lines--) { 253 wmove(data->menu, data->menu_height - spare_lines, 0); 254 for (x_count = 0; x_count < data->menu_width; 255 x_count++) { 256 waddch(data->menu, ' '); 257 } 258 } 259 } 260 261 (void) wnoutrefresh(data->menu); 262 263 dlg_draw_scrollbar(data->dialog, 264 scrollamt, 265 scrollamt, 266 scrollamt + max_choice, 267 data->item_no, 268 data->box_x, 269 data->box_x + data->menu_width, 270 data->box_y, 271 data->box_y + data->menu_height + 1, 272 menubox_border2_attr, 273 menubox_border_attr); 274 } 275 276 static bool 277 check_hotkey(DIALOG_LISTITEM * items, int choice) 278 { 279 bool result = FALSE; 280 281 if (dlg_match_char(dlg_last_getc(), 282 (dialog_vars.no_tags 283 ? items[choice].text 284 : items[choice].name))) { 285 result = TRUE; 286 } 287 return result; 288 } 289 290 /* 291 * This is an alternate interface to 'menu' which allows the application 292 * to read the list item states back directly without putting them in the 293 * output buffer. 294 */ 295 int 296 dlg_menu(const char *title, 297 const char *cprompt, 298 int height, 299 int width, 300 int menu_height, 301 int item_no, 302 DIALOG_LISTITEM * items, 303 int *current_item, 304 DIALOG_INPUTMENU rename_menutext) 305 { 306 /* *INDENT-OFF* */ 307 static DLG_KEYS_BINDING binding[] = { 308 HELPKEY_BINDINGS, 309 ENTERKEY_BINDINGS, 310 DLG_KEYS_DATA( DLGK_FIELD_NEXT, ' ' ), 311 DLG_KEYS_DATA( DLGK_FIELD_NEXT, KEY_RIGHT ), 312 DLG_KEYS_DATA( DLGK_FIELD_NEXT, TAB ), 313 DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_BTAB ), 314 DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_LEFT ), 315 DLG_KEYS_DATA( DLGK_ITEM_NEXT, '+' ), 316 DLG_KEYS_DATA( DLGK_ITEM_NEXT, KEY_DOWN ), 317 DLG_KEYS_DATA( DLGK_ITEM_NEXT, CHR_NEXT ), 318 DLG_KEYS_DATA( DLGK_ITEM_PREV, '-' ), 319 DLG_KEYS_DATA( DLGK_ITEM_PREV, KEY_UP ), 320 DLG_KEYS_DATA( DLGK_ITEM_PREV, CHR_PREVIOUS ), 321 DLG_KEYS_DATA( DLGK_PAGE_FIRST, KEY_HOME ), 322 DLG_KEYS_DATA( DLGK_PAGE_LAST, KEY_END ), 323 DLG_KEYS_DATA( DLGK_PAGE_LAST, KEY_LL ), 324 DLG_KEYS_DATA( DLGK_PAGE_NEXT, KEY_NPAGE ), 325 DLG_KEYS_DATA( DLGK_PAGE_PREV, KEY_PPAGE ), 326 END_KEYS_BINDING 327 }; 328 static DLG_KEYS_BINDING binding2[] = { 329 INPUTSTR_BINDINGS, 330 HELPKEY_BINDINGS, 331 ENTERKEY_BINDINGS, 332 END_KEYS_BINDING 333 }; 334 /* *INDENT-ON* */ 335 336 #ifdef KEY_RESIZE 337 int old_height = height; 338 int old_width = width; 339 #endif 340 ALL_DATA all; 341 int i, j, x, y, cur_x, cur_y; 342 int key = 0, fkey; 343 int button = dialog_state.visit_items ? -1 : dlg_default_button(); 344 int choice = dlg_default_listitem(items); 345 int result = DLG_EXIT_UNKNOWN; 346 int scrollamt = 0; 347 int max_choice; 348 int found; 349 int use_width, name_width, text_width, list_width; 350 WINDOW *dialog, *menu; 351 char *prompt = dlg_strclone(cprompt); 352 const char **buttons = dlg_ok_labels(); 353 bool is_inputmenu = ((rename_menutext != 0) 354 && (rename_menutext != dlg_dummy_menutext)); 355 356 all.items = items; 357 all.item_no = item_no; 358 359 dlg_does_output(); 360 dlg_tab_correct_str(prompt); 361 362 #ifdef KEY_RESIZE 363 retry: 364 #endif 365 366 all.menu_height = menu_height; 367 use_width = dlg_calc_list_width(item_no, items) + 10; 368 use_width = MAX(26, use_width); 369 if (all.menu_height == 0) { 370 /* calculate height without items (4) */ 371 dlg_auto_size(title, prompt, &height, &width, MIN_HIGH, use_width); 372 dlg_calc_listh(&height, &all.menu_height, item_no); 373 } else { 374 dlg_auto_size(title, prompt, 375 &height, &width, 376 MIN_HIGH + all.menu_height, use_width); 377 } 378 dlg_button_layout(buttons, &width); 379 dlg_print_size(height, width); 380 dlg_ctl_size(height, width); 381 382 x = dlg_box_x_ordinate(width); 383 y = dlg_box_y_ordinate(height); 384 385 dialog = dlg_new_window(height, width, y, x); 386 all.dialog = dialog; 387 388 dlg_register_window(dialog, "menubox", binding); 389 dlg_register_buttons(dialog, "menubox", buttons); 390 391 dlg_mouse_setbase(x, y); 392 393 dlg_draw_box2(dialog, 0, 0, height, width, dialog_attr, border_attr, border2_attr); 394 dlg_draw_bottom_box2(dialog, border_attr, border2_attr, dialog_attr); 395 dlg_draw_title(dialog, title); 396 397 (void) wattrset(dialog, dialog_attr); 398 dlg_print_autowrap(dialog, prompt, height, width); 399 400 all.menu_width = width - 6; 401 getyx(dialog, cur_y, cur_x); 402 all.box_y = cur_y + 1; 403 all.box_x = (width - all.menu_width) / 2 - 1; 404 405 /* 406 * After displaying the prompt, we know how much space we really have. 407 * Limit the list to avoid overwriting the ok-button. 408 */ 409 if (all.menu_height + MIN_HIGH > height - cur_y) 410 all.menu_height = height - MIN_HIGH - cur_y; 411 if (all.menu_height <= 0) 412 all.menu_height = 1; 413 414 /* Find out maximal number of displayable items at once. */ 415 max_choice = MIN(all.menu_height, 416 RowHeight(item_no)); 417 if (is_inputmenu) 418 max_choice /= INPUT_ROWS; 419 420 /* create new window for the menu */ 421 menu = dlg_sub_window(dialog, all.menu_height, all.menu_width, 422 y + all.box_y + 1, 423 x + all.box_x + 1); 424 all.menu = menu; 425 426 dlg_register_window(menu, "menu", binding2); 427 dlg_register_buttons(menu, "menu", buttons); 428 429 /* draw a box around the menu items */ 430 dlg_draw_box(dialog, 431 all.box_y, all.box_x, 432 all.menu_height + 2, all.menu_width + 2, 433 menubox_border_attr, menubox_border2_attr); 434 435 name_width = 0; 436 text_width = 0; 437 438 /* Find length of longest item to center menu * 439 * only if --menu was given, using --inputmenu * 440 * won't be centered. */ 441 for (i = 0; i < item_no; i++) { 442 name_width = MAX(name_width, dlg_count_columns(items[i].name)); 443 text_width = MAX(text_width, dlg_count_columns(items[i].text)); 444 } 445 446 /* If the name+text is wider than the list is allowed, then truncate 447 * one or both of them. If the name is no wider than 30% of the list, 448 * leave it intact. 449 * 450 * FIXME: the gutter width and name/list ratio should be configurable. 451 */ 452 use_width = (all.menu_width - GUTTER); 453 if (dialog_vars.no_tags) { 454 list_width = MIN(use_width, text_width); 455 } else if (dialog_vars.no_items) { 456 list_width = MIN(use_width, name_width); 457 } else { 458 if (text_width >= 0 459 && name_width >= 0 460 && use_width > 0 461 && text_width + name_width > use_width) { 462 int need = (int) (0.30 * use_width); 463 if (name_width > need) { 464 int want = (int) (use_width 465 * ((double) name_width) 466 / (text_width + name_width)); 467 name_width = (want > need) ? want : need; 468 } 469 text_width = use_width - name_width; 470 } 471 list_width = (text_width + name_width); 472 } 473 474 all.tag_x = (is_inputmenu 475 ? 0 476 : (use_width - list_width) / 2); 477 all.item_x = ((dialog_vars.no_tags 478 ? 0 479 : (dialog_vars.no_items 480 ? 0 481 : (GUTTER + name_width))) 482 + all.tag_x); 483 484 if (choice - scrollamt >= max_choice) { 485 scrollamt = choice - (max_choice - 1); 486 choice = max_choice - 1; 487 } 488 489 print_menu(&all, choice, scrollamt, max_choice, is_inputmenu); 490 491 /* register the new window, along with its borders */ 492 dlg_mouse_mkbigregion(all.box_y + 1, all.box_x, 493 all.menu_height + 2, all.menu_width + 2, 494 KEY_MAX, 1, 1, 1 /* by lines */ ); 495 496 dlg_draw_buttons(dialog, height - 2, 0, buttons, button, FALSE, width); 497 498 dlg_trace_win(dialog); 499 while (result == DLG_EXIT_UNKNOWN) { 500 if (button < 0) /* --visit-items */ 501 wmove(dialog, 502 all.box_y + ItemToRow(choice) + 1, 503 all.box_x + all.tag_x + 1); 504 505 key = dlg_mouse_wgetch(dialog, &fkey); 506 if (dlg_result_key(key, fkey, &result)) 507 break; 508 509 found = FALSE; 510 if (fkey) { 511 /* 512 * Allow a mouse-click on a box to switch selection to that box. 513 * Handling a button click is a little more complicated, since we 514 * push a KEY_ENTER back onto the input stream so we'll put the 515 * cursor at the right place before handling the "keypress". 516 */ 517 if (key >= DLGK_MOUSE(KEY_MAX)) { 518 key -= DLGK_MOUSE(KEY_MAX); 519 i = RowToItem(key); 520 if (i < max_choice) { 521 found = TRUE; 522 } else { 523 beep(); 524 continue; 525 } 526 } else if (is_DLGK_MOUSE(key) 527 && dlg_ok_buttoncode(key - M_EVENT) >= 0) { 528 button = (key - M_EVENT); 529 ungetch('\n'); 530 continue; 531 } 532 } else { 533 /* 534 * Check if key pressed matches first character of any item tag in 535 * list. If there is more than one match, we will cycle through 536 * each one as the same key is pressed repeatedly. 537 */ 538 if (button < 0 || !dialog_state.visit_items) { 539 for (j = scrollamt + choice + 1; j < item_no; j++) { 540 if (check_hotkey(items, j)) { 541 found = TRUE; 542 i = j - scrollamt; 543 break; 544 } 545 } 546 if (!found) { 547 for (j = 0; j <= scrollamt + choice; j++) { 548 if (check_hotkey(items, j)) { 549 found = TRUE; 550 i = j - scrollamt; 551 break; 552 } 553 } 554 } 555 if (found) 556 dlg_flush_getc(); 557 } else if ((j = dlg_char_to_button(key, buttons)) >= 0) { 558 button = j; 559 ungetch('\n'); 560 continue; 561 } 562 563 /* 564 * A single digit (1-9) positions the selection to that line in the 565 * current screen. 566 */ 567 if (!found 568 && (key <= '9') 569 && (key > '0') 570 && (key - '1' < max_choice)) { 571 found = TRUE; 572 i = key - '1'; 573 } 574 } 575 576 if (!found && fkey) { 577 found = TRUE; 578 switch (key) { 579 case DLGK_PAGE_FIRST: 580 i = -scrollamt; 581 break; 582 case DLGK_PAGE_LAST: 583 i = item_no - 1 - scrollamt; 584 break; 585 case DLGK_MOUSE(KEY_PPAGE): 586 case DLGK_PAGE_PREV: 587 if (choice) 588 i = 0; 589 else if (scrollamt != 0) 590 i = -MIN(scrollamt, max_choice); 591 else 592 continue; 593 break; 594 case DLGK_MOUSE(KEY_NPAGE): 595 case DLGK_PAGE_NEXT: 596 i = MIN(choice + max_choice, item_no - scrollamt - 1); 597 break; 598 case DLGK_ITEM_PREV: 599 i = choice - 1; 600 if (choice == 0 && scrollamt == 0) 601 continue; 602 break; 603 case DLGK_ITEM_NEXT: 604 i = choice + 1; 605 if (scrollamt + choice >= item_no - 1) 606 continue; 607 break; 608 default: 609 found = FALSE; 610 break; 611 } 612 } 613 614 if (found) { 615 if (i != choice) { 616 getyx(dialog, cur_y, cur_x); 617 if (i < 0 || i >= max_choice) { 618 if (i < 0) { 619 scrollamt += i; 620 choice = 0; 621 } else { 622 choice = max_choice - 1; 623 scrollamt += (i - max_choice + 1); 624 } 625 print_menu(&all, choice, scrollamt, max_choice, is_inputmenu); 626 } else { 627 choice = i; 628 print_menu(&all, choice, scrollamt, max_choice, is_inputmenu); 629 (void) wmove(dialog, cur_y, cur_x); 630 wrefresh(dialog); 631 } 632 } 633 continue; /* wait for another key press */ 634 } 635 636 if (fkey) { 637 switch (key) { 638 case DLGK_FIELD_PREV: 639 button = dlg_prev_button(buttons, button); 640 dlg_draw_buttons(dialog, height - 2, 0, buttons, button, 641 FALSE, width); 642 break; 643 case DLGK_FIELD_NEXT: 644 button = dlg_next_button(buttons, button); 645 dlg_draw_buttons(dialog, height - 2, 0, buttons, button, 646 FALSE, width); 647 break; 648 case DLGK_ENTER: 649 if (is_inputmenu) 650 result = dlg_ok_buttoncode(button); 651 else 652 result = dlg_enter_buttoncode(button); 653 654 /* 655 * If dlg_menu() is called from dialog_menu(), we want to 656 * capture the results into dialog_vars.input_result. 657 */ 658 if (result == DLG_EXIT_ERROR) { 659 result = DLG_EXIT_UNKNOWN; 660 } else if (is_inputmenu 661 || rename_menutext == dlg_dummy_menutext) { 662 result = handle_button(result, 663 items, 664 scrollamt + choice); 665 } 666 667 /* 668 * If we have a rename_menutext function, interpret the Extra 669 * button as a request to rename the menu's text. If that 670 * function doesn't return "Unknown", we will exit from this 671 * function. Usually that is done for dialog_menu(), so the 672 * shell script can use the updated value. If it does return 673 * "Unknown", update the list item only. A direct caller of 674 * dlg_menu() can free the renamed value - we cannot. 675 */ 676 if (is_inputmenu && result == DLG_EXIT_EXTRA) { 677 char *tmp; 678 679 if (input_menu_edit(&all, 680 &items[scrollamt + choice], 681 choice, 682 &tmp)) { 683 result = rename_menutext(items, scrollamt + choice, tmp); 684 if (result == DLG_EXIT_UNKNOWN) { 685 items[scrollamt + choice].text = tmp; 686 } else { 687 free(tmp); 688 } 689 } else { 690 result = DLG_EXIT_UNKNOWN; 691 print_item(&all, 692 menu, 693 &items[scrollamt + choice], 694 choice, 695 Selected, 696 is_inputmenu); 697 (void) wnoutrefresh(menu); 698 free(tmp); 699 } 700 701 if (result == DLG_EXIT_UNKNOWN) { 702 dlg_draw_buttons(dialog, height - 2, 0, 703 buttons, button, FALSE, width); 704 } 705 } 706 break; 707 #ifdef KEY_RESIZE 708 case KEY_RESIZE: 709 /* reset data */ 710 height = old_height; 711 width = old_width; 712 /* repaint */ 713 dlg_clear(); 714 dlg_del_window(dialog); 715 refresh(); 716 dlg_mouse_free_regions(); 717 goto retry; 718 #endif 719 default: 720 flash(); 721 break; 722 } 723 } 724 } 725 726 dlg_mouse_free_regions(); 727 dlg_unregister_window(menu); 728 dlg_del_window(dialog); 729 free(prompt); 730 731 *current_item = scrollamt + choice; 732 return result; 733 } 734 735 /* 736 * Display a menu for choosing among a number of options 737 */ 738 int 739 dialog_menu(const char *title, 740 const char *cprompt, 741 int height, 742 int width, 743 int menu_height, 744 int item_no, 745 char **items) 746 { 747 int result; 748 int choice; 749 int i, j; 750 DIALOG_LISTITEM *listitems; 751 752 listitems = dlg_calloc(DIALOG_LISTITEM, (size_t) item_no + 1); 753 assert_ptr(listitems, "dialog_menu"); 754 755 for (i = j = 0; i < item_no; ++i) { 756 listitems[i].name = items[j++]; 757 listitems[i].text = (dialog_vars.no_items 758 ? dlg_strempty() 759 : items[j++]); 760 listitems[i].help = ((dialog_vars.item_help) 761 ? items[j++] 762 : dlg_strempty()); 763 } 764 dlg_align_columns(&listitems[0].text, sizeof(DIALOG_LISTITEM), item_no); 765 766 result = dlg_menu(title, 767 cprompt, 768 height, 769 width, 770 menu_height, 771 item_no, 772 listitems, 773 &choice, 774 (dialog_vars.input_menu 775 ? dlg_renamed_menutext 776 : dlg_dummy_menutext)); 777 778 dlg_free_columns(&listitems[0].text, sizeof(DIALOG_LISTITEM), item_no); 779 free(listitems); 780 return result; 781 } 782