1 /* 2 * $Id: formbox.c,v 1.103 2021/01/17 22:19:05 tom Exp $ 3 * 4 * formbox.c -- implements the form (i.e., some pairs label/editbox) 5 * 6 * Copyright 2003-2020,2021 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 License, version 2.1 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 * This is adapted from source contributed by 24 * Valery Reznic (valery_reznic@users.sourceforge.net) 25 */ 26 27 #include <dialog.h> 28 #include <dlg_keys.h> 29 30 #define LLEN(n) ((n) * FORMBOX_TAGS) 31 32 #define ItemName(i) items[LLEN(i) + 0] 33 #define ItemNameY(i) items[LLEN(i) + 1] 34 #define ItemNameX(i) items[LLEN(i) + 2] 35 #define ItemText(i) items[LLEN(i) + 3] 36 #define ItemTextY(i) items[LLEN(i) + 4] 37 #define ItemTextX(i) items[LLEN(i) + 5] 38 #define ItemTextFLen(i) items[LLEN(i) + 6] 39 #define ItemTextILen(i) items[LLEN(i) + 7] 40 #define ItemHelp(i) (dialog_vars.item_help ? items[LLEN(i) + 8] : dlg_strempty()) 41 42 static bool 43 is_readonly(DIALOG_FORMITEM * item) 44 { 45 return ((item->type & 2) != 0) || (item->text_flen <= 0); 46 } 47 48 static bool 49 is_hidden(DIALOG_FORMITEM * item) 50 { 51 return ((item->type & 1) != 0); 52 } 53 54 static bool 55 in_window(WINDOW *win, int scrollamt, int y) 56 { 57 return (y >= scrollamt && y - scrollamt < getmaxy(win)); 58 } 59 60 static bool 61 ok_move(WINDOW *win, int scrollamt, int y, int x) 62 { 63 return in_window(win, scrollamt, y) 64 && (wmove(win, y - scrollamt, x) != ERR); 65 } 66 67 static void 68 move_past(WINDOW *win, int y, int x) 69 { 70 if (wmove(win, y, x) == ERR) 71 wmove(win, y, getmaxx(win) - 1); 72 } 73 74 /* 75 * Print form item 76 */ 77 static int 78 print_item(WINDOW *win, DIALOG_FORMITEM * item, int scrollamt, bool choice) 79 { 80 int count = 0; 81 int len; 82 83 if (ok_move(win, scrollamt, item->name_y, item->name_x)) { 84 len = item->name_len; 85 len = MIN(len, getmaxx(win) - item->name_x); 86 if (len > 0) { 87 dlg_show_string(win, 88 item->name, 89 0, 90 menubox_attr, 91 item->name_y - scrollamt, 92 item->name_x, 93 len, 94 FALSE, 95 FALSE); 96 move_past(win, item->name_y - scrollamt, item->name_x + len); 97 count = 1; 98 } 99 } 100 if (item->text_len && ok_move(win, scrollamt, item->text_y, item->text_x)) { 101 chtype this_item_attribute; 102 103 len = item->text_len; 104 len = MIN(len, getmaxx(win) - item->text_x); 105 106 if (!is_readonly(item)) { 107 this_item_attribute = choice 108 ? form_active_text_attr 109 : form_text_attr; 110 } else { 111 this_item_attribute = form_item_readonly_attr; 112 } 113 114 if (len > 0) { 115 dlg_show_string(win, 116 item->text, 117 0, 118 this_item_attribute, 119 item->text_y - scrollamt, 120 item->text_x, 121 len, 122 is_hidden(item), 123 FALSE); 124 move_past(win, item->text_y - scrollamt, item->text_x + len); 125 count = 1; 126 } 127 } 128 return count; 129 } 130 131 /* 132 * Print the entire form. 133 */ 134 static void 135 print_form(WINDOW *win, DIALOG_FORMITEM * item, int total, int scrollamt, int choice) 136 { 137 int n; 138 int count = 0; 139 140 for (n = 0; n < total; ++n) { 141 count += print_item(win, item + n, scrollamt, n == choice); 142 } 143 if (count) { 144 wbkgdset(win, menubox_attr | ' '); 145 wclrtobot(win); 146 (void) wnoutrefresh(win); 147 } 148 } 149 150 static int 151 set_choice(DIALOG_FORMITEM item[], int choice, int item_no, bool * noneditable) 152 { 153 int result = -1; 154 155 *noneditable = FALSE; 156 if (!is_readonly(&item[choice])) { 157 result = choice; 158 } else { 159 int i; 160 161 for (i = 0; i < item_no; i++) { 162 if (!is_readonly(&(item[i]))) { 163 result = i; 164 break; 165 } 166 } 167 if (result < 0) { 168 *noneditable = TRUE; 169 result = 0; 170 } 171 } 172 return result; 173 } 174 175 /* 176 * Find the last y-value in the form. 177 */ 178 static int 179 form_limit(DIALOG_FORMITEM item[]) 180 { 181 int n; 182 int limit = 0; 183 for (n = 0; item[n].name != 0; ++n) { 184 if (limit < item[n].name_y) 185 limit = item[n].name_y; 186 if (limit < item[n].text_y) 187 limit = item[n].text_y; 188 } 189 return limit; 190 } 191 192 static int 193 is_first_field(DIALOG_FORMITEM item[], int choice) 194 { 195 int count = 0; 196 while (choice >= 0) { 197 if (item[choice].text_flen > 0) { 198 ++count; 199 } 200 --choice; 201 } 202 203 return (count == 1); 204 } 205 206 static int 207 is_last_field(DIALOG_FORMITEM item[], int choice, int item_no) 208 { 209 int count = 0; 210 while (choice < item_no) { 211 if (item[choice].text_flen > 0) { 212 ++count; 213 } 214 ++choice; 215 } 216 217 return (count == 1); 218 } 219 220 /* 221 * Tab to the next field. 222 */ 223 static bool 224 tab_next(WINDOW *win, 225 DIALOG_FORMITEM item[], 226 int item_no, 227 int stepsize, 228 int *choice, 229 int *scrollamt) 230 { 231 int old_choice = *choice; 232 int old_scroll = *scrollamt; 233 bool wrapped = FALSE; 234 235 do { 236 do { 237 *choice += stepsize; 238 if (*choice < 0) { 239 *choice = item_no - 1; 240 wrapped = TRUE; 241 } else if (*choice >= item_no) { 242 *choice = 0; 243 wrapped = TRUE; 244 } 245 } while ((*choice != old_choice) && is_readonly(&(item[*choice]))); 246 247 if (item[*choice].text_flen > 0) { 248 int lo = MIN(item[*choice].name_y, item[*choice].text_y); 249 int hi = MAX(item[*choice].name_y, item[*choice].text_y); 250 251 if (old_choice == *choice) 252 break; 253 print_item(win, item + old_choice, *scrollamt, FALSE); 254 255 if (*scrollamt < lo + 1 - getmaxy(win)) 256 *scrollamt = lo + 1 - getmaxy(win); 257 if (*scrollamt > hi) 258 *scrollamt = hi; 259 /* 260 * If we have to scroll to show a wrap-around, it does get 261 * confusing. Just give up rather than scroll. Tab'ing to the 262 * next field in a multi-column form is a different matter. Scroll 263 * for that. 264 */ 265 if (*scrollamt != old_scroll) { 266 if (wrapped) { 267 beep(); 268 *scrollamt = old_scroll; 269 *choice = old_choice; 270 } else { 271 scrollok(win, TRUE); 272 wscrl(win, *scrollamt - old_scroll); 273 scrollok(win, FALSE); 274 } 275 } 276 break; 277 } 278 } while (*choice != old_choice); 279 280 return (old_choice != *choice) || (old_scroll != *scrollamt); 281 } 282 283 /* 284 * Scroll to the next page, putting the choice at the first editable field 285 * in that page. Note that fields are not necessarily in top-to-bottom order, 286 * nor is there necessarily a field on each row of the window. 287 */ 288 static bool 289 scroll_next(WINDOW *win, DIALOG_FORMITEM item[], int stepsize, int *choice, int *scrollamt) 290 { 291 bool result = TRUE; 292 int old_choice = *choice; 293 int old_scroll = *scrollamt; 294 int old_row = MIN(item[old_choice].text_y, item[old_choice].name_y); 295 int target = old_scroll + stepsize; 296 297 if (stepsize < 0) { 298 if (old_row != old_scroll) 299 target = old_scroll; 300 else 301 target = old_scroll + stepsize; 302 if (target < 0) { 303 result = FALSE; 304 } 305 } else { 306 if (target > form_limit(item)) { 307 result = FALSE; 308 } 309 } 310 311 if (result) { 312 int n; 313 314 for (n = 0; item[n].name != 0; ++n) { 315 if (item[n].text_flen > 0) { 316 int new_row = MIN(item[n].text_y, item[n].name_y); 317 if (abs(new_row - target) < abs(old_row - target)) { 318 old_row = new_row; 319 *choice = n; 320 } 321 } 322 } 323 324 if (old_choice != *choice) 325 print_item(win, item + old_choice, *scrollamt, FALSE); 326 327 *scrollamt = *choice; 328 if (*scrollamt != old_scroll) { 329 scrollok(win, TRUE); 330 wscrl(win, *scrollamt - old_scroll); 331 scrollok(win, FALSE); 332 } 333 result = (old_choice != *choice) || (old_scroll != *scrollamt); 334 } 335 if (!result) 336 beep(); 337 return result; 338 } 339 340 /* 341 * Do a sanity check on the field length, and return the "right" value. 342 */ 343 static int 344 real_length(DIALOG_FORMITEM * item) 345 { 346 return (item->text_flen > 0 347 ? item->text_flen 348 : (item->text_flen < 0 349 ? -item->text_flen 350 : item->text_len)); 351 } 352 353 /* 354 * Compute the form size, setup field buffers. 355 */ 356 static void 357 make_FORM_ELTs(DIALOG_FORMITEM * item, 358 int item_no, 359 int *min_height, 360 int *min_width) 361 { 362 int i; 363 int min_w = 0; 364 int min_h = 0; 365 366 for (i = 0; i < item_no; ++i) { 367 int real_len = real_length(item + i); 368 369 /* 370 * Special value '0' for text_flen: no input allowed 371 * Special value '0' for text_ilen: 'be the same as text_flen' 372 */ 373 if (item[i].text_ilen == 0) 374 item[i].text_ilen = real_len; 375 376 min_h = MAX(min_h, item[i].name_y + 1); 377 min_h = MAX(min_h, item[i].text_y + 1); 378 min_w = MAX(min_w, item[i].name_x + 1 + item[i].name_len); 379 min_w = MAX(min_w, item[i].text_x + 1 + real_len); 380 381 item[i].text_len = real_length(item + i); 382 383 /* 384 * We do not know the actual length of .text, so we allocate it here 385 * to ensure it is big enough. 386 */ 387 if (item[i].text_flen > 0) { 388 int max_len = dlg_max_input(MAX(item[i].text_ilen + 1, MAX_LEN)); 389 char *old_text = item[i].text; 390 391 item[i].text = dlg_malloc(char, (size_t) max_len + 1); 392 assert_ptr(item[i].text, "make_FORM_ELTs"); 393 394 sprintf(item[i].text, "%.*s", item[i].text_ilen, old_text); 395 396 if (item[i].text_free) { 397 free(old_text); 398 } 399 item[i].text_free = TRUE; 400 } 401 } 402 403 *min_height = min_h; 404 *min_width = min_w; 405 } 406 407 int 408 dlg_default_formitem(DIALOG_FORMITEM * items) 409 { 410 int result = 0; 411 412 if (dialog_vars.default_item != 0) { 413 int count = 0; 414 while (items->name != 0) { 415 if (!strcmp(dialog_vars.default_item, items->name)) { 416 result = count; 417 break; 418 } 419 ++items; 420 count++; 421 } 422 } 423 return result; 424 } 425 426 #define sTEXT -1 427 428 static int 429 next_valid_buttonindex(int state, int extra, bool non_editable) 430 { 431 state = dlg_next_ok_buttonindex(state, extra); 432 while (non_editable && state == sTEXT) 433 state = dlg_next_ok_buttonindex(state, sTEXT); 434 return state; 435 } 436 437 static int 438 prev_valid_buttonindex(int state, int extra, bool non_editable) 439 { 440 state = dlg_prev_ok_buttonindex(state, extra); 441 while (non_editable && state == sTEXT) 442 state = dlg_prev_ok_buttonindex(state, sTEXT); 443 return state; 444 } 445 446 #define NAVIGATE_BINDINGS \ 447 DLG_KEYS_DATA( DLGK_FIELD_NEXT, TAB ), \ 448 DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_BTAB ), \ 449 DLG_KEYS_DATA( DLGK_ITEM_NEXT, CHR_NEXT ), \ 450 DLG_KEYS_DATA( DLGK_ITEM_NEXT, KEY_DOWN ), \ 451 DLG_KEYS_DATA( DLGK_ITEM_NEXT, KEY_RIGHT ), \ 452 DLG_KEYS_DATA( DLGK_ITEM_NEXT, KEY_NEXT ), \ 453 DLG_KEYS_DATA( DLGK_ITEM_PREV, CHR_PREVIOUS ), \ 454 DLG_KEYS_DATA( DLGK_ITEM_PREV, KEY_PREVIOUS ), \ 455 DLG_KEYS_DATA( DLGK_ITEM_PREV, KEY_LEFT ), \ 456 DLG_KEYS_DATA( DLGK_ITEM_PREV, KEY_UP ), \ 457 DLG_KEYS_DATA( DLGK_PAGE_NEXT, KEY_NPAGE ), \ 458 DLG_KEYS_DATA( DLGK_PAGE_PREV, KEY_PPAGE ) 459 /* 460 * Display a form for entering a number of fields 461 */ 462 int 463 dlg_form(const char *title, 464 const char *cprompt, 465 int height, 466 int width, 467 int form_height, 468 int item_no, 469 DIALOG_FORMITEM * items, 470 int *current_item) 471 { 472 /* *INDENT-OFF* */ 473 static DLG_KEYS_BINDING binding[] = { 474 HELPKEY_BINDINGS, 475 ENTERKEY_BINDINGS, 476 NAVIGATE_BINDINGS, 477 TOGGLEKEY_BINDINGS, 478 END_KEYS_BINDING 479 }; 480 static DLG_KEYS_BINDING binding2[] = { 481 INPUTSTR_BINDINGS, 482 HELPKEY_BINDINGS, 483 ENTERKEY_BINDINGS, 484 NAVIGATE_BINDINGS, 485 /* no TOGGLEKEY_BINDINGS, since that includes space... */ 486 END_KEYS_BINDING 487 }; 488 /* *INDENT-ON* */ 489 490 #ifdef KEY_RESIZE 491 int old_height = height; 492 int old_width = width; 493 #endif 494 495 int form_width; 496 bool first = TRUE; 497 bool first_trace = TRUE; 498 int chr_offset = 0; 499 int state = (dialog_vars.default_button >= 0 500 ? dlg_default_button() 501 : sTEXT); 502 int x, y, cur_x, cur_y, box_x, box_y; 503 int code; 504 int fkey; 505 int choice = dlg_default_formitem(items); 506 int new_choice, new_scroll; 507 int scrollamt = 0; 508 int result = DLG_EXIT_UNKNOWN; 509 int min_width = 0, min_height = 0; 510 bool was_autosize = (height == 0 || width == 0); 511 bool show_buttons = FALSE; 512 bool scroll_changed = FALSE; 513 bool field_changed = FALSE; 514 bool non_editable = FALSE; 515 WINDOW *dialog, *form; 516 char *prompt; 517 const char **buttons = dlg_ok_labels(); 518 DIALOG_FORMITEM *current; 519 520 DLG_TRACE(("# %sform args:\n", (dialog_vars.formitem_type 521 ? "password" 522 : ""))); 523 DLG_TRACE2S("title", title); 524 DLG_TRACE2S("message", cprompt); 525 DLG_TRACE2N("height", height); 526 DLG_TRACE2N("width", width); 527 DLG_TRACE2N("lheight", form_height); 528 DLG_TRACE2N("llength", item_no); 529 /* FIXME dump the items[][] too */ 530 DLG_TRACE2N("current", *current_item); 531 532 make_FORM_ELTs(items, item_no, &min_height, &min_width); 533 dlg_button_layout(buttons, &min_width); 534 dlg_does_output(); 535 536 #ifdef KEY_RESIZE 537 retry: 538 #endif 539 540 prompt = dlg_strclone(cprompt); 541 dlg_tab_correct_str(prompt); 542 dlg_auto_size(title, prompt, &height, &width, 543 1 + 3 * MARGIN, 544 MAX(26, 2 + min_width)); 545 546 if (form_height == 0) 547 form_height = min_height; 548 549 if (was_autosize) { 550 form_height = MIN(SLINES - height, form_height); 551 height += form_height; 552 } else { 553 int thigh = 0; 554 int twide = 0; 555 dlg_auto_size(title, prompt, &thigh, &twide, 0, width); 556 thigh = SLINES - (height - (thigh + 1 + 3 * MARGIN)); 557 form_height = MIN(thigh, form_height); 558 } 559 560 dlg_print_size(height, width); 561 dlg_ctl_size(height, width); 562 563 x = dlg_box_x_ordinate(width); 564 y = dlg_box_y_ordinate(height); 565 566 dialog = dlg_new_window(height, width, y, x); 567 dlg_register_window(dialog, "formbox", binding); 568 dlg_register_buttons(dialog, "formbox", buttons); 569 570 dlg_mouse_setbase(x, y); 571 572 dlg_draw_box2(dialog, 0, 0, height, width, dialog_attr, border_attr, border2_attr); 573 dlg_draw_bottom_box2(dialog, border_attr, border2_attr, dialog_attr); 574 dlg_draw_title(dialog, title); 575 576 dlg_attrset(dialog, dialog_attr); 577 dlg_print_autowrap(dialog, prompt, height, width); 578 579 form_width = width - 6; 580 getyx(dialog, cur_y, cur_x); 581 (void) cur_x; 582 box_y = cur_y + 1; 583 box_x = (width - form_width) / 2 - 1; 584 585 /* create new window for the form */ 586 form = dlg_sub_window(dialog, form_height, form_width, y + box_y + 1, 587 x + box_x + 1); 588 dlg_register_window(form, "formfield", binding2); 589 590 /* draw a box around the form items */ 591 dlg_draw_box(dialog, box_y, box_x, form_height + 2, form_width + 2, 592 menubox_border_attr, menubox_border2_attr); 593 594 /* register the new window, along with its borders */ 595 dlg_mouse_mkbigregion(getbegy(form) - getbegy(dialog), 596 getbegx(form) - getbegx(dialog), 597 getmaxy(form), 598 getmaxx(form), 599 KEY_MAX, 1, 1, 3 /* by cells */ ); 600 601 show_buttons = TRUE; 602 scroll_changed = TRUE; 603 604 choice = set_choice(items, choice, item_no, &non_editable); 605 current = &items[choice]; 606 if (non_editable) 607 state = next_valid_buttonindex(state, sTEXT, non_editable); 608 609 while (result == DLG_EXIT_UNKNOWN) { 610 int edit = FALSE; 611 int key; 612 613 if (scroll_changed) { 614 print_form(form, items, item_no, scrollamt, choice); 615 dlg_draw_scrollbar(dialog, 616 scrollamt, 617 scrollamt, 618 scrollamt + form_height + 1, 619 min_height, 620 box_x + 1, 621 box_x + form_width, 622 box_y, 623 box_y + form_height + 1, 624 menubox_border2_attr, 625 menubox_border_attr); 626 scroll_changed = FALSE; 627 } 628 629 if (show_buttons) { 630 dlg_item_help(""); 631 dlg_draw_buttons(dialog, height - 2, 0, buttons, 632 ((state < 0) 633 ? 1000 /* no such button, not highlighted */ 634 : state), 635 FALSE, width); 636 show_buttons = FALSE; 637 } 638 639 if (first_trace) { 640 first_trace = FALSE; 641 dlg_trace_win(dialog); 642 } 643 644 if (field_changed || state == sTEXT) { 645 if (field_changed) 646 chr_offset = 0; 647 current = &items[choice]; 648 dialog_vars.max_input = current->text_ilen; 649 dlg_item_help(current->help); 650 dlg_show_string(form, current->text, chr_offset, 651 form_active_text_attr, 652 current->text_y - scrollamt, 653 current->text_x, 654 current->text_len, 655 is_hidden(current), first); 656 wsyncup(form); 657 wcursyncup(form); 658 field_changed = FALSE; 659 } 660 661 key = dlg_mouse_wgetch((state == sTEXT) ? form : dialog, &fkey); 662 if (dlg_result_key(key, fkey, &result)) { 663 break; 664 } 665 666 /* handle non-functionkeys */ 667 if (!fkey) { 668 if (state != sTEXT) { 669 code = dlg_char_to_button(key, buttons); 670 if (code >= 0) { 671 dlg_del_window(dialog); 672 result = dlg_ok_buttoncode(code); 673 continue; 674 } 675 } 676 } 677 678 /* handle functionkeys */ 679 if (fkey) { 680 bool do_scroll = FALSE; 681 bool do_tab = FALSE; 682 int move_by = 0; 683 684 switch (key) { 685 case DLGK_MOUSE(KEY_PPAGE): 686 case DLGK_PAGE_PREV: 687 do_scroll = TRUE; 688 move_by = -form_height; 689 break; 690 691 case DLGK_MOUSE(KEY_NPAGE): 692 case DLGK_PAGE_NEXT: 693 do_scroll = TRUE; 694 move_by = form_height; 695 break; 696 697 case DLGK_TOGGLE: 698 case DLGK_ENTER: 699 dlg_del_window(dialog); 700 result = (state >= 0) ? dlg_enter_buttoncode(state) : DLG_EXIT_OK; 701 continue; 702 case DLGK_LEAVE: 703 if (state >= 0) 704 result = dlg_ok_buttoncode(state); 705 break; 706 707 case DLGK_GRID_LEFT: 708 if (state == sTEXT) 709 break; 710 /* FALLTHRU */ 711 case DLGK_ITEM_PREV: 712 if (state == sTEXT) { 713 do_tab = TRUE; 714 move_by = -1; 715 break; 716 } else { 717 state = prev_valid_buttonindex(state, 0, non_editable); 718 show_buttons = TRUE; 719 continue; 720 } 721 722 case DLGK_FORM_PREV: 723 if (state == sTEXT && !is_first_field(items, choice)) { 724 do_tab = TRUE; 725 move_by = -1; 726 break; 727 } else { 728 int old_state = state; 729 state = prev_valid_buttonindex(state, sTEXT, non_editable); 730 show_buttons = TRUE; 731 if (old_state >= 0 && state == sTEXT) { 732 new_choice = item_no - 1; 733 if (choice != new_choice) { 734 print_item(form, items + choice, scrollamt, FALSE); 735 choice = new_choice; 736 } 737 } 738 continue; 739 } 740 741 case DLGK_FIELD_PREV: 742 state = prev_valid_buttonindex(state, sTEXT, non_editable); 743 show_buttons = TRUE; 744 continue; 745 746 case DLGK_FIELD_NEXT: 747 state = next_valid_buttonindex(state, sTEXT, non_editable); 748 show_buttons = TRUE; 749 continue; 750 751 case DLGK_GRID_RIGHT: 752 if (state == sTEXT) 753 break; 754 /* FALLTHRU */ 755 756 case DLGK_ITEM_NEXT: 757 if (state == sTEXT) { 758 do_tab = TRUE; 759 move_by = 1; 760 break; 761 } else { 762 state = next_valid_buttonindex(state, 0, non_editable); 763 show_buttons = TRUE; 764 continue; 765 } 766 767 case DLGK_FORM_NEXT: 768 if (state == sTEXT && !is_last_field(items, choice, item_no)) { 769 do_tab = TRUE; 770 move_by = 1; 771 break; 772 } else { 773 state = next_valid_buttonindex(state, sTEXT, non_editable); 774 show_buttons = TRUE; 775 if (state == sTEXT && choice) { 776 print_item(form, items + choice, scrollamt, FALSE); 777 choice = 0; 778 } 779 continue; 780 } 781 782 #ifdef KEY_RESIZE 783 case KEY_RESIZE: 784 dlg_will_resize(dialog); 785 /* reset data */ 786 height = old_height; 787 width = old_width; 788 free(prompt); 789 _dlg_resize_cleanup(dialog); 790 dlg_unregister_window(form); 791 /* repaint */ 792 goto retry; 793 #endif 794 default: 795 #if USE_MOUSE 796 if (is_DLGK_MOUSE(key)) { 797 if (key >= DLGK_MOUSE(KEY_MAX)) { 798 int cell = key - DLGK_MOUSE(KEY_MAX); 799 int row = (cell / getmaxx(form)) + scrollamt; 800 int col = (cell % getmaxx(form)); 801 int n; 802 803 for (n = 0; n < item_no; ++n) { 804 if (items[n].name_y == row 805 && items[n].name_x <= col 806 && (items[n].name_x + items[n].name_len > col 807 || (items[n].name_y == items[n].text_y 808 && items[n].text_x > col))) { 809 if (!is_readonly(&(items[n]))) { 810 field_changed = TRUE; 811 break; 812 } 813 } 814 if (items[n].text_y == row 815 && items[n].text_x <= col 816 && items[n].text_x + items[n].text_ilen > col) { 817 if (!is_readonly(&(items[n]))) { 818 field_changed = TRUE; 819 break; 820 } 821 } 822 } 823 if (field_changed) { 824 print_item(form, items + choice, scrollamt, FALSE); 825 choice = n; 826 continue; 827 } 828 beep(); 829 } else if ((code = dlg_ok_buttoncode(key - M_EVENT)) >= 0) { 830 result = code; 831 } 832 continue; 833 } 834 #endif 835 break; 836 } 837 838 new_scroll = scrollamt; 839 new_choice = choice; 840 if (do_scroll) { 841 if (scroll_next(form, items, move_by, &new_choice, &new_scroll)) { 842 if (choice != new_choice) { 843 choice = new_choice; 844 field_changed = TRUE; 845 } 846 if (scrollamt != new_scroll) { 847 scrollamt = new_scroll; 848 scroll_changed = TRUE; 849 } 850 } 851 continue; 852 } 853 if (do_tab) { 854 if (tab_next(form, items, item_no, move_by, &new_choice, &new_scroll)) { 855 if (choice != new_choice) { 856 choice = new_choice; 857 field_changed = TRUE; 858 } 859 if (scrollamt != new_scroll) { 860 scrollamt = new_scroll; 861 scroll_changed = TRUE; 862 } 863 } 864 continue; 865 } 866 } 867 868 if (state == sTEXT) { /* Input box selected */ 869 if (!is_readonly(current)) 870 edit = dlg_edit_string(current->text, &chr_offset, key, 871 fkey, first); 872 if (edit) { 873 dlg_show_string(form, current->text, chr_offset, 874 form_active_text_attr, 875 current->text_y - scrollamt, 876 current->text_x, 877 current->text_len, 878 is_hidden(current), first); 879 continue; 880 } 881 } 882 883 } 884 885 dlg_mouse_free_regions(); 886 dlg_unregister_window(form); 887 dlg_del_window(dialog); 888 free(prompt); 889 890 *current_item = choice; 891 return result; 892 } 893 894 /* 895 * Free memory owned by a list of DIALOG_FORMITEM's. 896 */ 897 void 898 dlg_free_formitems(DIALOG_FORMITEM * items) 899 { 900 int n; 901 for (n = 0; items[n].name != 0; ++n) { 902 if (items[n].name_free) 903 free(items[n].name); 904 if (items[n].text_free) 905 free(items[n].text); 906 if (items[n].help_free && items[n].help != dlg_strempty()) 907 free(items[n].help); 908 } 909 free(items); 910 } 911 912 /* 913 * The script accepts values beginning at 1, while curses starts at 0. 914 */ 915 int 916 dlg_ordinate(const char *s) 917 { 918 int result = atoi(s); 919 if (result > 0) 920 --result; 921 else 922 result = 0; 923 return result; 924 } 925 926 int 927 dialog_form(const char *title, 928 const char *cprompt, 929 int height, 930 int width, 931 int form_height, 932 int item_no, 933 char **items) 934 { 935 int result; 936 int choice = 0; 937 int i; 938 DIALOG_FORMITEM *listitems; 939 DIALOG_VARS save_vars; 940 bool show_status = FALSE; 941 char *help_result; 942 943 dlg_save_vars(&save_vars); 944 dialog_vars.separate_output = TRUE; 945 946 listitems = dlg_calloc(DIALOG_FORMITEM, (size_t) item_no + 1); 947 assert_ptr(listitems, "dialog_form"); 948 949 for (i = 0; i < item_no; ++i) { 950 listitems[i].type = dialog_vars.formitem_type; 951 listitems[i].name = ItemName(i); 952 listitems[i].name_len = (int) strlen(ItemName(i)); 953 listitems[i].name_y = dlg_ordinate(ItemNameY(i)); 954 listitems[i].name_x = dlg_ordinate(ItemNameX(i)); 955 listitems[i].text = ItemText(i); 956 listitems[i].text_len = (int) strlen(ItemText(i)); 957 listitems[i].text_y = dlg_ordinate(ItemTextY(i)); 958 listitems[i].text_x = dlg_ordinate(ItemTextX(i)); 959 listitems[i].text_flen = atoi(ItemTextFLen(i)); 960 listitems[i].text_ilen = atoi(ItemTextILen(i)); 961 listitems[i].help = ((dialog_vars.item_help) 962 ? ItemHelp(i) 963 : dlg_strempty()); 964 } 965 966 result = dlg_form(title, 967 cprompt, 968 height, 969 width, 970 form_height, 971 item_no, 972 listitems, 973 &choice); 974 975 switch (result) { 976 case DLG_EXIT_OK: /* FALLTHRU */ 977 case DLG_EXIT_EXTRA: 978 show_status = TRUE; 979 break; 980 case DLG_EXIT_HELP: 981 dlg_add_help_formitem(&result, &help_result, &listitems[choice]); 982 show_status = dialog_vars.help_status; 983 dlg_add_string(help_result); 984 if (show_status) 985 dlg_add_separator(); 986 break; 987 } 988 if (show_status) { 989 for (i = 0; i < item_no; i++) { 990 if (listitems[i].text_flen > 0) { 991 dlg_add_string(listitems[i].text); 992 dlg_add_separator(); 993 } 994 } 995 dlg_add_last_key(-1); 996 } 997 998 dlg_free_formitems(listitems); 999 dlg_restore_vars(&save_vars); 1000 1001 return result; 1002 } 1003