1 /* 2 * $Id: menubox.c,v 1.169 2020/03/27 20:53:31 tom Exp $ 3 * 4 * menubox.c -- implements the menu box 5 * 6 * Copyright 2000-2019,2020 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 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 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 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 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 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 244 print_menu(ALL_DATA * data, int choice, int scrollamt, int max_choice, bool is_inputmenu) 245 { 246 int i; 247 248 for (i = 0; i < max_choice; i++) { 249 print_item(data, 250 data->menu, 251 &data->items[i + scrollamt], 252 i, 253 (i == choice) ? Selected : Unselected, 254 is_inputmenu); 255 } 256 257 /* Clean bottom lines */ 258 if (is_inputmenu) { 259 int spare_lines, x_count; 260 spare_lines = data->menu_height % INPUT_ROWS; 261 dlg_attrset(data->menu, menubox_attr); 262 for (; spare_lines; spare_lines--) { 263 wmove(data->menu, data->menu_height - spare_lines, 0); 264 for (x_count = 0; x_count < data->menu_width; 265 x_count++) { 266 waddch(data->menu, ' '); 267 } 268 } 269 } 270 271 (void) wnoutrefresh(data->menu); 272 273 dlg_draw_scrollbar(data->dialog, 274 scrollamt, 275 scrollamt, 276 scrollamt + max_choice, 277 data->item_no, 278 data->box_x, 279 data->box_x + data->menu_width, 280 data->box_y, 281 data->box_y + data->menu_height + 1, 282 menubox_border2_attr, 283 menubox_border_attr); 284 } 285 286 static bool 287 check_hotkey(DIALOG_LISTITEM * items, int choice) 288 { 289 bool result = FALSE; 290 291 if (dlg_match_char(dlg_last_getc(), 292 (dialog_vars.no_tags 293 ? items[choice].text 294 : items[choice].name))) { 295 result = TRUE; 296 } 297 return result; 298 } 299 300 /* 301 * This is an alternate interface to 'menu' which allows the application 302 * to read the list item states back directly without putting them in the 303 * output buffer. 304 */ 305 int 306 dlg_menu(const char *title, 307 const char *cprompt, 308 int height, 309 int width, 310 int menu_height, 311 int item_no, 312 DIALOG_LISTITEM * items, 313 int *current_item, 314 DIALOG_INPUTMENU rename_menutext) 315 { 316 /* *INDENT-OFF* */ 317 static DLG_KEYS_BINDING binding[] = { 318 HELPKEY_BINDINGS, 319 ENTERKEY_BINDINGS, 320 TOGGLEKEY_BINDINGS, 321 DLG_KEYS_DATA( DLGK_FIELD_NEXT, KEY_RIGHT ), 322 DLG_KEYS_DATA( DLGK_FIELD_NEXT, TAB ), 323 DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_BTAB ), 324 DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_LEFT ), 325 DLG_KEYS_DATA( DLGK_ITEM_NEXT, '+' ), 326 DLG_KEYS_DATA( DLGK_ITEM_NEXT, KEY_DOWN ), 327 DLG_KEYS_DATA( DLGK_ITEM_NEXT, CHR_NEXT ), 328 DLG_KEYS_DATA( DLGK_ITEM_PREV, '-' ), 329 DLG_KEYS_DATA( DLGK_ITEM_PREV, KEY_UP ), 330 DLG_KEYS_DATA( DLGK_ITEM_PREV, CHR_PREVIOUS ), 331 DLG_KEYS_DATA( DLGK_PAGE_FIRST, KEY_HOME ), 332 DLG_KEYS_DATA( DLGK_PAGE_LAST, KEY_END ), 333 DLG_KEYS_DATA( DLGK_PAGE_LAST, KEY_LL ), 334 DLG_KEYS_DATA( DLGK_PAGE_NEXT, KEY_NPAGE ), 335 DLG_KEYS_DATA( DLGK_PAGE_PREV, KEY_PPAGE ), 336 END_KEYS_BINDING 337 }; 338 static DLG_KEYS_BINDING binding2[] = { 339 INPUTSTR_BINDINGS, 340 HELPKEY_BINDINGS, 341 ENTERKEY_BINDINGS, 342 END_KEYS_BINDING 343 }; 344 /* *INDENT-ON* */ 345 346 #ifdef KEY_RESIZE 347 int old_LINES = LINES; 348 int old_COLS = COLS; 349 int old_height = height; 350 int old_width = width; 351 #endif 352 ALL_DATA all; 353 int i, j, x, y, cur_x, cur_y; 354 int fkey; 355 int button = dialog_state.visit_items ? -1 : dlg_default_button(); 356 int choice = dlg_default_listitem(items); 357 int result = DLG_EXIT_UNKNOWN; 358 int scrollamt = 0; 359 int max_choice; 360 int use_width, name_width, text_width, list_width; 361 WINDOW *dialog, *menu; 362 char *prompt = 0; 363 const char **buttons = dlg_ok_labels(); 364 bool is_inputmenu = ((rename_menutext != 0) 365 && (rename_menutext != dlg_dummy_menutext)); 366 367 DLG_TRACE(("# menubox args:\n")); 368 DLG_TRACE2S("title", title); 369 DLG_TRACE2S("message", cprompt); 370 DLG_TRACE2N("height", height); 371 DLG_TRACE2N("width", width); 372 DLG_TRACE2N("lheight", menu_height); 373 DLG_TRACE2N("llength", item_no); 374 /* FIXME dump the items[][] too */ 375 DLG_TRACE2N("rename", rename_menutext != 0); 376 377 dialog_state.plain_buttons = TRUE; 378 379 all.items = items; 380 all.item_no = item_no; 381 382 dlg_does_output(); 383 384 #ifdef KEY_RESIZE 385 retry: 386 #endif 387 388 prompt = dlg_strclone(cprompt); 389 dlg_tab_correct_str(prompt); 390 391 all.menu_height = menu_height; 392 use_width = dlg_calc_list_width(item_no, items) + 10; 393 use_width = MAX(26, use_width); 394 if (all.menu_height == 0) { 395 /* calculate height without items (4) */ 396 dlg_auto_size(title, prompt, &height, &width, MIN_HIGH, use_width); 397 dlg_calc_listh(&height, &all.menu_height, item_no); 398 } else { 399 dlg_auto_size(title, prompt, 400 &height, &width, 401 MIN_HIGH + all.menu_height, use_width); 402 } 403 dlg_button_layout(buttons, &width); 404 dlg_print_size(height, width); 405 dlg_ctl_size(height, width); 406 407 x = dlg_box_x_ordinate(width); 408 y = dlg_box_y_ordinate(height); 409 410 dialog = dlg_new_window(height, width, y, x); 411 all.dialog = dialog; 412 413 dlg_register_window(dialog, "menubox", binding); 414 dlg_register_buttons(dialog, "menubox", buttons); 415 416 dlg_mouse_setbase(x, y); 417 418 dlg_draw_box2(dialog, 0, 0, height, width, dialog_attr, border_attr, border2_attr); 419 dlg_draw_bottom_box2(dialog, border_attr, border2_attr, dialog_attr); 420 dlg_draw_title(dialog, title); 421 422 dlg_attrset(dialog, dialog_attr); 423 dlg_print_autowrap(dialog, prompt, height, width); 424 425 all.menu_width = width - 6; 426 getyx(dialog, cur_y, cur_x); 427 all.box_y = cur_y + 1; 428 all.box_x = (width - all.menu_width) / 2 - 1; 429 430 /* 431 * After displaying the prompt, we know how much space we really have. 432 * Limit the list to avoid overwriting the ok-button. 433 */ 434 all.menu_height = height - MIN_HIGH - cur_y; 435 if (all.menu_height <= 0) 436 all.menu_height = 1; 437 438 /* Find out maximal number of displayable items at once. */ 439 max_choice = MIN(all.menu_height, 440 RowHeight(item_no)); 441 if (is_inputmenu) 442 max_choice /= INPUT_ROWS; 443 444 /* create new window for the menu */ 445 menu = dlg_sub_window(dialog, all.menu_height, all.menu_width, 446 y + all.box_y + 1, 447 x + all.box_x + 1); 448 all.menu = menu; 449 450 dlg_register_window(menu, "menu", binding2); 451 dlg_register_buttons(menu, "menu", buttons); 452 453 /* draw a box around the menu items */ 454 dlg_draw_box(dialog, 455 all.box_y, all.box_x, 456 all.menu_height + 2, all.menu_width + 2, 457 menubox_border_attr, menubox_border2_attr); 458 459 name_width = 0; 460 text_width = 0; 461 462 /* Find length of longest item to center menu * 463 * only if --menu was given, using --inputmenu * 464 * won't be centered. */ 465 for (i = 0; i < item_no; i++) { 466 name_width = MAX(name_width, dlg_count_columns(items[i].name)); 467 text_width = MAX(text_width, dlg_count_columns(items[i].text)); 468 } 469 470 /* If the name+text is wider than the list is allowed, then truncate 471 * one or both of them. If the name is no wider than 30% of the list, 472 * leave it intact. 473 * 474 * FIXME: the gutter width and name/list ratio should be configurable. 475 */ 476 use_width = (all.menu_width - GUTTER); 477 if (dialog_vars.no_tags) { 478 list_width = MIN(use_width, text_width); 479 } else if (dialog_vars.no_items) { 480 list_width = MIN(use_width, name_width); 481 } else { 482 if (text_width >= 0 483 && name_width >= 0 484 && use_width > 0 485 && text_width + name_width > use_width) { 486 int need = (int) (0.30 * use_width); 487 if (name_width > need) { 488 int want = (int) (use_width 489 * ((double) name_width) 490 / (text_width + name_width)); 491 name_width = (want > need) ? want : need; 492 } 493 text_width = use_width - name_width; 494 } 495 list_width = (text_width + name_width); 496 } 497 498 all.tag_x = (is_inputmenu 499 ? 0 500 : (use_width - list_width) / 2); 501 all.item_x = ((dialog_vars.no_tags 502 ? 0 503 : (dialog_vars.no_items 504 ? 0 505 : (GUTTER + name_width))) 506 + all.tag_x); 507 508 if (choice - scrollamt >= max_choice) { 509 scrollamt = choice - (max_choice - 1); 510 choice = max_choice - 1; 511 } 512 513 print_menu(&all, choice, scrollamt, max_choice, is_inputmenu); 514 515 /* register the new window, along with its borders */ 516 dlg_mouse_mkbigregion(all.box_y + 1, all.box_x, 517 all.menu_height + 2, all.menu_width + 2, 518 KEY_MAX, 1, 1, 1 /* by lines */ ); 519 520 dlg_draw_buttons(dialog, height - 2, 0, buttons, button, FALSE, width); 521 522 dlg_trace_win(dialog); 523 524 while (result == DLG_EXIT_UNKNOWN) { 525 int key, found; 526 527 if (button < 0) /* --visit-items */ 528 wmove(dialog, 529 all.box_y + ItemToRow(choice) + 1, 530 all.box_x + all.tag_x + 1); 531 532 key = dlg_mouse_wgetch(dialog, &fkey); 533 if (dlg_result_key(key, fkey, &result)) { 534 if (!dlg_button_key(result, &button, &key, &fkey)) 535 break; 536 } 537 538 found = FALSE; 539 if (fkey) { 540 /* 541 * Allow a mouse-click on a box to switch selection to that box. 542 * Handling a button click is a little more complicated, since we 543 * push a KEY_ENTER back onto the input stream so we'll put the 544 * cursor at the right place before handling the "keypress". 545 */ 546 if (key >= DLGK_MOUSE(KEY_MAX)) { 547 key -= DLGK_MOUSE(KEY_MAX); 548 i = RowToItem(key); 549 if (i < max_choice) { 550 found = TRUE; 551 } else { 552 beep(); 553 continue; 554 } 555 } else if (is_DLGK_MOUSE(key) 556 && dlg_ok_buttoncode(key - M_EVENT) >= 0) { 557 button = (key - M_EVENT); 558 ungetch('\n'); 559 continue; 560 } 561 } else { 562 /* 563 * Check if key pressed matches first character of any item tag in 564 * list. If there is more than one match, we will cycle through 565 * each one as the same key is pressed repeatedly. 566 */ 567 if (button < 0 || !dialog_state.visit_items) { 568 for (j = scrollamt + choice + 1; j < item_no; j++) { 569 if (check_hotkey(items, j)) { 570 found = TRUE; 571 i = j - scrollamt; 572 break; 573 } 574 } 575 if (!found) { 576 for (j = 0; j <= scrollamt + choice; j++) { 577 if (check_hotkey(items, j)) { 578 found = TRUE; 579 i = j - scrollamt; 580 break; 581 } 582 } 583 } 584 if (found) 585 dlg_flush_getc(); 586 } else if ((j = dlg_char_to_button(key, buttons)) >= 0) { 587 button = j; 588 ungetch('\n'); 589 continue; 590 } 591 592 /* 593 * A single digit (1-9) positions the selection to that line in the 594 * current screen. 595 */ 596 if (!found 597 && (key <= '9') 598 && (key > '0') 599 && (key - '1' < max_choice)) { 600 found = TRUE; 601 i = key - '1'; 602 } 603 } 604 605 if (!found && fkey) { 606 found = TRUE; 607 switch (key) { 608 case DLGK_PAGE_FIRST: 609 i = -scrollamt; 610 break; 611 case DLGK_PAGE_LAST: 612 i = item_no - 1 - scrollamt; 613 break; 614 case DLGK_MOUSE(KEY_PPAGE): 615 case DLGK_PAGE_PREV: 616 if (choice) 617 i = 0; 618 else if (scrollamt != 0) 619 i = -MIN(scrollamt, max_choice); 620 else 621 continue; 622 break; 623 case DLGK_MOUSE(KEY_NPAGE): 624 case DLGK_PAGE_NEXT: 625 i = MIN(choice + max_choice, item_no - scrollamt - 1); 626 break; 627 case DLGK_ITEM_PREV: 628 i = choice - 1; 629 if (choice == 0 && scrollamt == 0) 630 continue; 631 break; 632 case DLGK_ITEM_NEXT: 633 i = choice + 1; 634 if (scrollamt + choice >= item_no - 1) 635 continue; 636 break; 637 default: 638 found = FALSE; 639 break; 640 } 641 } 642 643 if (found) { 644 if (i != choice) { 645 getyx(dialog, cur_y, cur_x); 646 if (i < 0 || i >= max_choice) { 647 if (i < 0) { 648 scrollamt += i; 649 choice = 0; 650 } else { 651 choice = max_choice - 1; 652 scrollamt += (i - max_choice + 1); 653 } 654 print_menu(&all, choice, scrollamt, max_choice, is_inputmenu); 655 } else { 656 choice = i; 657 print_menu(&all, choice, scrollamt, max_choice, is_inputmenu); 658 (void) wmove(dialog, cur_y, cur_x); 659 wrefresh(dialog); 660 } 661 } 662 continue; /* wait for another key press */ 663 } 664 665 if (fkey) { 666 switch (key) { 667 case DLGK_FIELD_PREV: 668 button = dlg_prev_button(buttons, button); 669 dlg_draw_buttons(dialog, height - 2, 0, buttons, button, 670 FALSE, width); 671 break; 672 case DLGK_FIELD_NEXT: 673 button = dlg_next_button(buttons, button); 674 dlg_draw_buttons(dialog, height - 2, 0, buttons, button, 675 FALSE, width); 676 break; 677 case DLGK_TOGGLE: 678 case DLGK_ENTER: 679 if (is_inputmenu) 680 result = dlg_ok_buttoncode(button); 681 else 682 result = dlg_enter_buttoncode(button); 683 684 /* 685 * If dlg_menu() is called from dialog_menu(), we want to 686 * capture the results into dialog_vars.input_result. 687 */ 688 if (result == DLG_EXIT_ERROR) { 689 result = DLG_EXIT_UNKNOWN; 690 } else if (is_inputmenu 691 || rename_menutext == dlg_dummy_menutext) { 692 result = handle_button(result, 693 items, 694 scrollamt + choice); 695 } 696 697 /* 698 * If we have a rename_menutext function, interpret the Extra 699 * button as a request to rename the menu's text. If that 700 * function doesn't return "Unknown", we will exit from this 701 * function. Usually that is done for dialog_menu(), so the 702 * shell script can use the updated value. If it does return 703 * "Unknown", update the list item only. A direct caller of 704 * dlg_menu() can free the renamed value - we cannot. 705 */ 706 if (is_inputmenu && result == DLG_EXIT_EXTRA) { 707 char *tmp; 708 709 if (input_menu_edit(&all, 710 &items[scrollamt + choice], 711 choice, 712 &tmp)) { 713 result = rename_menutext(items, scrollamt + choice, tmp); 714 if (result == DLG_EXIT_UNKNOWN) { 715 items[scrollamt + choice].text = tmp; 716 } else { 717 free(tmp); 718 } 719 } else { 720 result = DLG_EXIT_UNKNOWN; 721 print_item(&all, 722 menu, 723 &items[scrollamt + choice], 724 choice, 725 Selected, 726 is_inputmenu); 727 (void) wnoutrefresh(menu); 728 free(tmp); 729 } 730 731 if (result == DLG_EXIT_UNKNOWN) { 732 dlg_draw_buttons(dialog, height - 2, 0, 733 buttons, button, FALSE, width); 734 } 735 } 736 break; 737 #ifdef KEY_RESIZE 738 case KEY_RESIZE: 739 dlg_will_resize(dialog); 740 /* reset data */ 741 resizeit(height, LINES); 742 resizeit(width, COLS); 743 free(prompt); 744 _dlg_resize_cleanup(dialog); 745 /* repaint */ 746 goto retry; 747 #endif 748 default: 749 flash(); 750 break; 751 } 752 } 753 } 754 755 dlg_mouse_free_regions(); 756 dlg_unregister_window(menu); 757 dlg_del_window(dialog); 758 free(prompt); 759 760 *current_item = scrollamt + choice; 761 762 DLG_TRACE2N("current", *current_item); 763 return result; 764 } 765 766 /* 767 * Display a menu for choosing among a number of options 768 */ 769 int 770 dialog_menu(const char *title, 771 const char *cprompt, 772 int height, 773 int width, 774 int menu_height, 775 int item_no, 776 char **items) 777 { 778 int result; 779 int choice; 780 int i, j; 781 DIALOG_LISTITEM *listitems; 782 783 listitems = dlg_calloc(DIALOG_LISTITEM, (size_t) item_no + 1); 784 assert_ptr(listitems, "dialog_menu"); 785 786 for (i = j = 0; i < item_no; ++i) { 787 listitems[i].name = items[j++]; 788 listitems[i].text = (dialog_vars.no_items 789 ? dlg_strempty() 790 : items[j++]); 791 listitems[i].help = ((dialog_vars.item_help) 792 ? items[j++] 793 : dlg_strempty()); 794 } 795 dlg_align_columns(&listitems[0].text, sizeof(DIALOG_LISTITEM), item_no); 796 797 result = dlg_menu(title, 798 cprompt, 799 height, 800 width, 801 menu_height, 802 item_no, 803 listitems, 804 &choice, 805 (dialog_vars.input_menu 806 ? dlg_renamed_menutext 807 : dlg_dummy_menutext)); 808 809 dlg_free_columns(&listitems[0].text, sizeof(DIALOG_LISTITEM), item_no); 810 free(listitems); 811 return result; 812 } 813