Amit Daniel Kachhap | e6a01f5 | 2011-07-20 11:45:59 +0530 | [diff] [blame^] | 1 | /**************************************************************************** |
| 2 | * Copyright (c) 2005-2007,2008 Free Software Foundation, Inc. * |
| 3 | * * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a * |
| 5 | * copy of this software and associated documentation files (the * |
| 6 | * "Software"), to deal in the Software without restriction, including * |
| 7 | * without limitation the rights to use, copy, modify, merge, publish, * |
| 8 | * distribute, distribute with modifications, sublicense, and/or sell * |
| 9 | * copies of the Software, and to permit persons to whom the Software is * |
| 10 | * furnished to do so, subject to the following conditions: * |
| 11 | * * |
| 12 | * The above copyright notice and this permission notice shall be included * |
| 13 | * in all copies or substantial portions of the Software. * |
| 14 | * * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * |
| 16 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * |
| 17 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * |
| 18 | * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * |
| 19 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * |
| 20 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * |
| 21 | * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * |
| 22 | * * |
| 23 | * Except as contained in this notice, the name(s) of the above copyright * |
| 24 | * holders shall not be used in advertising or otherwise to promote the * |
| 25 | * sale, use or other dealings in this Software without prior written * |
| 26 | * authorization. * |
| 27 | ****************************************************************************/ |
| 28 | /* |
| 29 | * $Id: demo_menus.c,v 1.28 2008/08/23 20:31:54 tom Exp $ |
| 30 | * |
| 31 | * Demonstrate a variety of functions from the menu library. |
| 32 | * Thomas Dickey - 2005/4/9 |
| 33 | */ |
| 34 | /* |
| 35 | item_description - |
| 36 | item_init - |
| 37 | item_opts - |
| 38 | item_opts_off - |
| 39 | item_opts_on - |
| 40 | item_term - |
| 41 | item_userptr - |
| 42 | item_visible - |
| 43 | menu_back - |
| 44 | menu_fore - |
| 45 | menu_format - |
| 46 | menu_grey - |
| 47 | menu_init - |
| 48 | menu_opts - |
| 49 | menu_pad - |
| 50 | menu_request_by_name - |
| 51 | menu_request_name - |
| 52 | menu_sub - |
| 53 | menu_term - |
| 54 | menu_userptr - |
| 55 | set_current_item - |
| 56 | set_item_init - |
| 57 | set_item_opts - |
| 58 | set_item_term - |
| 59 | set_item_userptr - |
| 60 | set_menu_grey - |
| 61 | set_menu_init - |
| 62 | set_menu_items - |
| 63 | set_menu_opts - |
| 64 | set_menu_pad - |
| 65 | set_menu_pattern - |
| 66 | set_menu_spacing - |
| 67 | set_menu_term - |
| 68 | set_menu_userptr - |
| 69 | set_top_row - |
| 70 | top_row - |
| 71 | */ |
| 72 | |
| 73 | #include <test.priv.h> |
| 74 | |
| 75 | #if USE_LIBMENU |
| 76 | |
| 77 | #include <menu.h> |
| 78 | |
| 79 | #include <sys/types.h> |
| 80 | #include <sys/stat.h> |
| 81 | |
| 82 | #ifdef NCURSES_VERSION |
| 83 | #ifdef TRACE |
| 84 | static unsigned save_trace = TRACE_ORDINARY | TRACE_CALLS; |
| 85 | extern unsigned _nc_tracing; |
| 86 | static MENU *mpTrace; |
| 87 | #endif |
| 88 | #else |
| 89 | #undef TRACE |
| 90 | #endif |
| 91 | |
| 92 | typedef enum { |
| 93 | eBanner = -1 |
| 94 | ,eFile |
| 95 | ,eSelect |
| 96 | #ifdef TRACE |
| 97 | ,eTrace |
| 98 | #endif |
| 99 | ,eMAX |
| 100 | } MenuNo; |
| 101 | |
| 102 | #define okMenuNo(n) (((n) > eBanner) && ((n) < eMAX)) |
| 103 | |
| 104 | #define MENU_Y 1 |
| 105 | |
| 106 | static MENU *mpBanner; |
| 107 | static MENU *mpFile; |
| 108 | static MENU *mpSelect; |
| 109 | |
| 110 | static bool loaded_file = FALSE; |
| 111 | |
| 112 | #if !HAVE_STRDUP |
| 113 | #define strdup my_strdup |
| 114 | static char * |
| 115 | strdup(char *s) |
| 116 | { |
| 117 | char *p = typeMalloc(char, strlen(s) + 1); |
| 118 | if (p) |
| 119 | strcpy(p, s); |
| 120 | return (p); |
| 121 | } |
| 122 | #endif /* not HAVE_STRDUP */ |
| 123 | |
| 124 | /* Common function to allow ^T to toggle trace-mode in the middle of a test |
| 125 | * so that trace-files can be made smaller. |
| 126 | */ |
| 127 | static int |
| 128 | wGetchar(WINDOW *win) |
| 129 | { |
| 130 | int c; |
| 131 | #ifdef TRACE |
| 132 | while ((c = wgetch(win)) == CTRL('T')) { |
| 133 | if (_nc_tracing) { |
| 134 | save_trace = _nc_tracing; |
| 135 | Trace(("TOGGLE-TRACING OFF")); |
| 136 | _nc_tracing = 0; |
| 137 | } else { |
| 138 | _nc_tracing = save_trace; |
| 139 | } |
| 140 | trace(_nc_tracing); |
| 141 | if (_nc_tracing) |
| 142 | Trace(("TOGGLE-TRACING ON")); |
| 143 | } |
| 144 | #else |
| 145 | c = wgetch(win); |
| 146 | #endif |
| 147 | return c; |
| 148 | } |
| 149 | #define Getchar() wGetchar(stdscr) |
| 150 | |
| 151 | static int |
| 152 | menu_virtualize(int c) |
| 153 | { |
| 154 | int result; |
| 155 | |
| 156 | if (c == '\n' || c == KEY_EXIT) |
| 157 | result = (MAX_COMMAND + 1); |
| 158 | else if (c == 'u') |
| 159 | result = (REQ_SCR_ULINE); |
| 160 | else if (c == 'd') |
| 161 | result = (REQ_SCR_DLINE); |
| 162 | else if (c == 'b' || c == KEY_NPAGE) |
| 163 | result = (REQ_SCR_UPAGE); |
| 164 | else if (c == 'f' || c == KEY_PPAGE) |
| 165 | result = (REQ_SCR_DPAGE); |
| 166 | else if (c == 'l' || c == KEY_LEFT || c == KEY_BTAB) |
| 167 | result = (REQ_LEFT_ITEM); |
| 168 | else if (c == 'n' || c == KEY_DOWN) |
| 169 | result = (REQ_NEXT_ITEM); |
| 170 | else if (c == 'p' || c == KEY_UP) |
| 171 | result = (REQ_PREV_ITEM); |
| 172 | else if (c == 'r' || c == KEY_RIGHT || c == '\t') |
| 173 | result = (REQ_RIGHT_ITEM); |
| 174 | else if (c == ' ') |
| 175 | result = (REQ_TOGGLE_ITEM); |
| 176 | else { |
| 177 | if (c != KEY_MOUSE) |
| 178 | beep(); |
| 179 | result = (c); |
| 180 | } |
| 181 | return result; |
| 182 | } |
| 183 | |
| 184 | static int |
| 185 | menu_getc(MENU * m) |
| 186 | { |
| 187 | return wGetchar(menu_win(m)); |
| 188 | } |
| 189 | |
| 190 | static int |
| 191 | menu_offset(MenuNo number) |
| 192 | { |
| 193 | int result = 0; |
| 194 | |
| 195 | if (okMenuNo(number)) { |
| 196 | int spc_desc, spc_rows, spc_cols; |
| 197 | |
| 198 | #ifdef NCURSES_VERSION |
| 199 | menu_spacing(mpBanner, &spc_desc, &spc_rows, &spc_cols); |
| 200 | #else |
| 201 | spc_rows = 0; |
| 202 | #endif |
| 203 | |
| 204 | /* FIXME: MENU.itemlen seems the only way to get actual width of items */ |
| 205 | result = (number - (eBanner + 1)) * (mpBanner->itemlen + spc_rows); |
| 206 | } |
| 207 | return result; |
| 208 | } |
| 209 | |
| 210 | static MENU * |
| 211 | menu_create(ITEM ** items, int count, int ncols, MenuNo number) |
| 212 | { |
| 213 | MENU *result; |
| 214 | WINDOW *menuwin; |
| 215 | int mrows, mcols; |
| 216 | int y = okMenuNo(number) ? MENU_Y : 0; |
| 217 | int x = menu_offset(number); |
| 218 | int margin = (y == MENU_Y) ? 1 : 0; |
| 219 | int maxcol = (ncols + x) < COLS ? ncols : (COLS - x - 1); |
| 220 | int maxrow = (count + 1) / ncols; |
| 221 | |
| 222 | if ((maxrow + y) >= (LINES - 4)) |
| 223 | maxrow = LINES - 4 - y; |
| 224 | |
| 225 | result = new_menu(items); |
| 226 | |
| 227 | if (has_colors()) { |
| 228 | set_menu_fore(result, COLOR_PAIR(1)); |
| 229 | set_menu_back(result, COLOR_PAIR(2)); |
| 230 | } |
| 231 | |
| 232 | set_menu_format(result, maxrow, maxcol); |
| 233 | scale_menu(result, &mrows, &mcols); |
| 234 | |
| 235 | if (mcols + (2 * margin + x) >= COLS) |
| 236 | mcols = COLS - (2 * margin + x); |
| 237 | |
| 238 | #ifdef TRACE |
| 239 | if (number == eTrace) |
| 240 | menu_opts_off(result, O_ONEVALUE); |
| 241 | else |
| 242 | menu_opts_on(result, O_ONEVALUE); |
| 243 | #endif |
| 244 | |
| 245 | menuwin = newwin(mrows + (2 * margin), mcols + (2 * margin), y, x); |
| 246 | set_menu_win(result, menuwin); |
| 247 | keypad(menuwin, TRUE); |
| 248 | if (margin) |
| 249 | box(menuwin, 0, 0); |
| 250 | |
| 251 | set_menu_sub(result, derwin(menuwin, mrows, mcols, margin, margin)); |
| 252 | |
| 253 | post_menu(result); |
| 254 | |
| 255 | return result; |
| 256 | } |
| 257 | |
| 258 | static void |
| 259 | menu_destroy(MENU * m) |
| 260 | { |
| 261 | int count; |
| 262 | |
| 263 | Trace(("menu_destroy %p", m)); |
| 264 | if (m != 0) { |
| 265 | ITEM **items = menu_items(m); |
| 266 | const char *blob = 0; |
| 267 | |
| 268 | count = item_count(m); |
| 269 | Trace(("menu_destroy %p count %d", m, count)); |
| 270 | if ((count > 0) && (m == mpSelect)) { |
| 271 | blob = item_name(*items); |
| 272 | } |
| 273 | |
| 274 | unpost_menu(m); |
| 275 | free_menu(m); |
| 276 | |
| 277 | /* free the extra data allocated in build_select_menu() */ |
| 278 | if ((count > 0) && (m == mpSelect)) { |
| 279 | if (blob && loaded_file) { |
| 280 | Trace(("freeing blob %p", blob)); |
| 281 | free((char *) blob); |
| 282 | } |
| 283 | free(items); |
| 284 | } |
| 285 | #ifdef TRACE |
| 286 | if ((count > 0) && (m == mpTrace)) { |
| 287 | ITEM **ip = items; |
| 288 | while (*ip) |
| 289 | free(*ip++); |
| 290 | } |
| 291 | #endif |
| 292 | } |
| 293 | } |
| 294 | |
| 295 | /* force the given menu to appear */ |
| 296 | static void |
| 297 | menu_display(MENU * m) |
| 298 | { |
| 299 | touchwin(menu_win(m)); |
| 300 | wrefresh(menu_win(m)); |
| 301 | } |
| 302 | |
| 303 | /*****************************************************************************/ |
| 304 | |
| 305 | static void |
| 306 | build_file_menu(MenuNo number) |
| 307 | { |
| 308 | static CONST_MENUS char *labels[] = |
| 309 | { |
| 310 | "Exit", |
| 311 | (char *) 0 |
| 312 | }; |
| 313 | static ITEM *items[SIZEOF(labels)]; |
| 314 | |
| 315 | ITEM **ip = items; |
| 316 | CONST_MENUS char **ap; |
| 317 | |
| 318 | for (ap = labels; *ap; ap++) |
| 319 | *ip++ = new_item(*ap, ""); |
| 320 | *ip = (ITEM *) 0; |
| 321 | |
| 322 | mpFile = menu_create(items, SIZEOF(labels) - 1, 1, number); |
| 323 | } |
| 324 | |
| 325 | static int |
| 326 | perform_file_menu(int cmd) |
| 327 | { |
| 328 | return menu_driver(mpFile, cmd); |
| 329 | } |
| 330 | |
| 331 | /*****************************************************************************/ |
| 332 | |
| 333 | static void |
| 334 | build_select_menu(MenuNo number, char *filename) |
| 335 | { |
| 336 | static CONST_MENUS char *labels[] = |
| 337 | { |
| 338 | "Lions", |
| 339 | "Tigers", |
| 340 | "Bears", |
| 341 | "(Oh my!)", |
| 342 | "Newts", |
| 343 | "Platypi", |
| 344 | "Lemurs", |
| 345 | "(Oh really?!)", |
| 346 | "Leopards", |
| 347 | "Panthers", |
| 348 | "Pumas", |
| 349 | "Lions, Tigers, Bears, (Oh my!), Newts, Platypi, Lemurs", |
| 350 | "Lions, Tigers, Bears, (Oh my!), Newts, Platypi, Lemurs, Lions, Tigers, Bears, (Oh my!), Newts, Platypi, Lemurs", |
| 351 | (char *) 0 |
| 352 | }; |
| 353 | static ITEM **items; |
| 354 | |
| 355 | ITEM **ip; |
| 356 | CONST_MENUS char **ap = 0; |
| 357 | CONST_MENUS char **myList = 0; |
| 358 | unsigned count = 0; |
| 359 | |
| 360 | if (filename != 0) { |
| 361 | struct stat sb; |
| 362 | if (stat(filename, &sb) == 0 |
| 363 | && (sb.st_mode & S_IFMT) == S_IFREG |
| 364 | && sb.st_size != 0) { |
| 365 | size_t size = (size_t) sb.st_size; |
| 366 | unsigned j, k; |
| 367 | char *blob = typeMalloc(char, size + 1); |
| 368 | CONST_MENUS char **list = typeCalloc(CONST_MENUS char *, size + 1); |
| 369 | |
| 370 | items = typeCalloc(ITEM *, size + 1); |
| 371 | Trace(("build_select_menu blob=%p, items=%p", blob, items)); |
| 372 | if (blob != 0 && list != 0) { |
| 373 | FILE *fp = fopen(filename, "r"); |
| 374 | if (fp != 0) { |
| 375 | if (fread(blob, sizeof(char), size, fp) == size) { |
| 376 | bool mark = TRUE; |
| 377 | for (j = k = 0; j < size; ++j) { |
| 378 | if (mark) { |
| 379 | list[k++] = blob + j; |
| 380 | mark = FALSE; |
| 381 | } |
| 382 | if (blob[j] == '\n') { |
| 383 | blob[j] = '\0'; |
| 384 | if (k > 0 && *list[k - 1] == '\0') |
| 385 | --k; |
| 386 | mark = TRUE; |
| 387 | } else if (blob[j] == '\t') { |
| 388 | blob[j] = ' '; /* menu items are printable */ |
| 389 | } |
| 390 | } |
| 391 | list[k] = 0; |
| 392 | count = k; |
| 393 | ap = myList = list; |
| 394 | } |
| 395 | fclose(fp); |
| 396 | } |
| 397 | loaded_file = TRUE; |
| 398 | } |
| 399 | } |
| 400 | } |
| 401 | if (ap == 0) { |
| 402 | count = SIZEOF(labels) - 1; |
| 403 | items = typeCalloc(ITEM *, count + 1); |
| 404 | ap = labels; |
| 405 | } |
| 406 | |
| 407 | ip = items; |
| 408 | while (*ap != 0) |
| 409 | *ip++ = new_item(*ap++, ""); |
| 410 | *ip = 0; |
| 411 | |
| 412 | mpSelect = menu_create(items, (int) count, 1, number); |
| 413 | if (myList != 0) |
| 414 | free(myList); |
| 415 | } |
| 416 | |
| 417 | static int |
| 418 | perform_select_menu(int cmd) |
| 419 | { |
| 420 | return menu_driver(mpSelect, cmd); |
| 421 | } |
| 422 | |
| 423 | /*****************************************************************************/ |
| 424 | |
| 425 | #ifdef TRACE |
| 426 | #define T_TBL(name) { #name, name } |
| 427 | static struct { |
| 428 | const char *name; |
| 429 | unsigned mask; |
| 430 | } t_tbl[] = { |
| 431 | |
| 432 | T_TBL(TRACE_DISABLE), |
| 433 | T_TBL(TRACE_TIMES), |
| 434 | T_TBL(TRACE_TPUTS), |
| 435 | T_TBL(TRACE_UPDATE), |
| 436 | T_TBL(TRACE_MOVE), |
| 437 | T_TBL(TRACE_CHARPUT), |
| 438 | T_TBL(TRACE_ORDINARY), |
| 439 | T_TBL(TRACE_CALLS), |
| 440 | T_TBL(TRACE_VIRTPUT), |
| 441 | T_TBL(TRACE_IEVENT), |
| 442 | T_TBL(TRACE_BITS), |
| 443 | T_TBL(TRACE_ICALLS), |
| 444 | T_TBL(TRACE_CCALLS), |
| 445 | T_TBL(TRACE_DATABASE), |
| 446 | T_TBL(TRACE_ATTRS), |
| 447 | T_TBL(TRACE_MAXIMUM), |
| 448 | { |
| 449 | (char *) 0, 0 |
| 450 | } |
| 451 | }; |
| 452 | |
| 453 | static void |
| 454 | build_trace_menu(MenuNo number) |
| 455 | { |
| 456 | static ITEM *items[SIZEOF(t_tbl)]; |
| 457 | |
| 458 | ITEM **ip = items; |
| 459 | int n; |
| 460 | |
| 461 | for (n = 0; t_tbl[n].name != 0; n++) |
| 462 | *ip++ = new_item(t_tbl[n].name, ""); |
| 463 | *ip = (ITEM *) 0; |
| 464 | |
| 465 | mpTrace = menu_create(items, SIZEOF(t_tbl) - 1, 2, number); |
| 466 | } |
| 467 | |
| 468 | static char * |
| 469 | tracetrace(unsigned tlevel) |
| 470 | { |
| 471 | static char *buf; |
| 472 | int n; |
| 473 | |
| 474 | if (buf == 0) { |
| 475 | size_t need = 12; |
| 476 | for (n = 0; t_tbl[n].name != 0; n++) |
| 477 | need += strlen(t_tbl[n].name) + 2; |
| 478 | buf = typeMalloc(char, need); |
| 479 | } |
| 480 | sprintf(buf, "0x%02x = {", tlevel); |
| 481 | if (tlevel == 0) { |
| 482 | sprintf(buf + strlen(buf), "%s, ", t_tbl[0].name); |
| 483 | } else { |
| 484 | for (n = 1; t_tbl[n].name != 0; n++) |
| 485 | if ((tlevel & t_tbl[n].mask) == t_tbl[n].mask) { |
| 486 | strcat(buf, t_tbl[n].name); |
| 487 | strcat(buf, ", "); |
| 488 | } |
| 489 | } |
| 490 | if (buf[strlen(buf) - 2] == ',') |
| 491 | buf[strlen(buf) - 2] = '\0'; |
| 492 | return (strcat(buf, "}")); |
| 493 | } |
| 494 | |
| 495 | /* fake a dynamically reconfigurable menu using the 0th entry to deselect |
| 496 | * the others |
| 497 | */ |
| 498 | static bool |
| 499 | update_trace_menu(MENU * m) |
| 500 | { |
| 501 | ITEM **items; |
| 502 | ITEM *i, **p; |
| 503 | bool changed = FALSE; |
| 504 | |
| 505 | items = menu_items(m); |
| 506 | i = current_item(m); |
| 507 | if (i == items[0]) { |
| 508 | if (item_value(i)) { |
| 509 | for (p = items + 1; *p != 0; p++) |
| 510 | if (item_value(*p)) { |
| 511 | set_item_value(*p, FALSE); |
| 512 | changed = TRUE; |
| 513 | } |
| 514 | } |
| 515 | } |
| 516 | return changed; |
| 517 | } |
| 518 | |
| 519 | static int |
| 520 | perform_trace_menu(int cmd) |
| 521 | /* interactively set the trace level */ |
| 522 | { |
| 523 | ITEM **ip; |
| 524 | unsigned newtrace; |
| 525 | int result; |
| 526 | |
| 527 | for (ip = menu_items(mpTrace); *ip; ip++) { |
| 528 | unsigned mask = t_tbl[item_index(*ip)].mask; |
| 529 | if (mask == 0) |
| 530 | set_item_value(*ip, _nc_tracing == 0); |
| 531 | else if ((mask & _nc_tracing) == mask) |
| 532 | set_item_value(*ip, TRUE); |
| 533 | } |
| 534 | |
| 535 | result = menu_driver(mpTrace, cmd); |
| 536 | |
| 537 | if (result == E_OK) { |
| 538 | if (update_trace_menu(mpTrace) || cmd == REQ_TOGGLE_ITEM) { |
| 539 | newtrace = 0; |
| 540 | for (ip = menu_items(mpTrace); *ip; ip++) { |
| 541 | if (item_value(*ip)) |
| 542 | newtrace |= t_tbl[item_index(*ip)].mask; |
| 543 | } |
| 544 | trace(newtrace); |
| 545 | Trace(("trace level interactively set to %s", tracetrace(_nc_tracing))); |
| 546 | |
| 547 | (void) mvprintw(LINES - 2, 0, |
| 548 | "Trace level is %s\n", tracetrace(_nc_tracing)); |
| 549 | refresh(); |
| 550 | } |
| 551 | } |
| 552 | return result; |
| 553 | } |
| 554 | #endif /* TRACE */ |
| 555 | |
| 556 | /*****************************************************************************/ |
| 557 | |
| 558 | static int |
| 559 | menu_number(void) |
| 560 | { |
| 561 | return item_index(current_item(mpBanner)) - (eBanner + 1); |
| 562 | } |
| 563 | |
| 564 | static MENU * |
| 565 | current_menu(void) |
| 566 | { |
| 567 | MENU *result; |
| 568 | |
| 569 | switch (menu_number()) { |
| 570 | case eFile: |
| 571 | result = mpFile; |
| 572 | break; |
| 573 | case eSelect: |
| 574 | result = mpSelect; |
| 575 | break; |
| 576 | #ifdef TRACE |
| 577 | case eTrace: |
| 578 | result = mpTrace; |
| 579 | break; |
| 580 | #endif |
| 581 | default: |
| 582 | result = 0; |
| 583 | break; |
| 584 | } |
| 585 | return result; |
| 586 | } |
| 587 | |
| 588 | static void |
| 589 | build_menus(char *filename) |
| 590 | { |
| 591 | static CONST_MENUS char *labels[] = |
| 592 | { |
| 593 | "File", |
| 594 | "Select", |
| 595 | #ifdef TRACE |
| 596 | "Trace", |
| 597 | #endif |
| 598 | (char *) 0 |
| 599 | }; |
| 600 | static ITEM *items[SIZEOF(labels)]; |
| 601 | |
| 602 | ITEM **ip = items; |
| 603 | CONST_MENUS char **ap; |
| 604 | |
| 605 | for (ap = labels; *ap; ap++) |
| 606 | *ip++ = new_item(*ap, ""); |
| 607 | *ip = (ITEM *) 0; |
| 608 | |
| 609 | mpBanner = menu_create(items, SIZEOF(labels) - 1, SIZEOF(labels) - 1, eBanner); |
| 610 | set_menu_mark(mpBanner, ">"); |
| 611 | |
| 612 | build_file_menu(eFile); |
| 613 | build_select_menu(eSelect, filename); |
| 614 | #ifdef TRACE |
| 615 | build_trace_menu(eTrace); |
| 616 | #endif |
| 617 | } |
| 618 | |
| 619 | static int |
| 620 | move_menu(MENU * menu, MENU * current, int by_y, int by_x) |
| 621 | { |
| 622 | WINDOW *top_win = menu_win(menu); |
| 623 | WINDOW *sub_win = menu_sub(menu); |
| 624 | int y0, x0; |
| 625 | int y1, x1; |
| 626 | int result; |
| 627 | |
| 628 | getbegyx(top_win, y0, x0); |
| 629 | y0 += by_y; |
| 630 | x0 += by_x; |
| 631 | |
| 632 | getbegyx(sub_win, y1, x1); |
| 633 | y1 += by_y; |
| 634 | x1 += by_x; |
| 635 | |
| 636 | if ((result = mvwin(top_win, y0, x0)) != ERR) { |
| 637 | #if defined(NCURSES_VERSION_PATCH) && (NCURSES_VERSION_PATCH < 20060218) |
| 638 | sub_win->_begy = y1; |
| 639 | sub_win->_begx = x1; |
| 640 | #else |
| 641 | mvwin(sub_win, y1, x1); |
| 642 | #endif |
| 643 | if (menu == current) { |
| 644 | touchwin(top_win); |
| 645 | wnoutrefresh(top_win); |
| 646 | } |
| 647 | } |
| 648 | return result; |
| 649 | } |
| 650 | |
| 651 | /* |
| 652 | * Move the menus around on the screen, to test mvwin(). |
| 653 | */ |
| 654 | static void |
| 655 | move_menus(MENU * current, int by_y, int by_x) |
| 656 | { |
| 657 | if (move_menu(mpBanner, current, by_y, by_x) != ERR) { |
| 658 | erase(); |
| 659 | wnoutrefresh(stdscr); |
| 660 | move_menu(mpFile, current, by_y, by_x); |
| 661 | move_menu(mpSelect, current, by_y, by_x); |
| 662 | #ifdef TRACE |
| 663 | move_menu(mpTrace, current, by_y, by_x); |
| 664 | #endif |
| 665 | doupdate(); |
| 666 | } |
| 667 | } |
| 668 | |
| 669 | static void |
| 670 | show_status(int ch, MENU * menu) |
| 671 | { |
| 672 | move(LINES - 1, 0); |
| 673 | printw("key %s, menu %d, mark %s, match %s", |
| 674 | keyname(ch), |
| 675 | menu_number(), |
| 676 | menu_mark(menu), |
| 677 | menu_pattern(menu)); |
| 678 | clrtoeol(); |
| 679 | refresh(); |
| 680 | } |
| 681 | |
| 682 | static void |
| 683 | perform_menus(void) |
| 684 | { |
| 685 | MENU *this_menu; |
| 686 | MENU *last_menu = mpFile; |
| 687 | int code = E_UNKNOWN_COMMAND; |
| 688 | int cmd; |
| 689 | int ch = ERR; |
| 690 | |
| 691 | #ifdef NCURSES_MOUSE_VERSION |
| 692 | mousemask(ALL_MOUSE_EVENTS, (mmask_t *) 0); |
| 693 | #endif |
| 694 | |
| 695 | menu_display(last_menu); |
| 696 | |
| 697 | for (;;) { |
| 698 | |
| 699 | if (ch != ERR) |
| 700 | show_status(ch, last_menu); |
| 701 | |
| 702 | ch = menu_getc(mpBanner); |
| 703 | |
| 704 | /* |
| 705 | * Provide for moving the menu around in the screen using shifted |
| 706 | * cursor keys. |
| 707 | */ |
| 708 | switch (ch) { |
| 709 | case KEY_SF: |
| 710 | move_menus(last_menu, 1, 0); |
| 711 | continue; |
| 712 | case KEY_SR: |
| 713 | move_menus(last_menu, -1, 0); |
| 714 | continue; |
| 715 | case KEY_SLEFT: |
| 716 | move_menus(last_menu, 0, -1); |
| 717 | continue; |
| 718 | case KEY_SRIGHT: |
| 719 | move_menus(last_menu, 0, 1); |
| 720 | continue; |
| 721 | } |
| 722 | cmd = menu_virtualize(ch); |
| 723 | |
| 724 | switch (cmd) { |
| 725 | /* |
| 726 | * The banner menu acts solely to select one of the other menus. |
| 727 | * Move between its items, wrapping at the left/right limits. |
| 728 | */ |
| 729 | case REQ_LEFT_ITEM: |
| 730 | case REQ_RIGHT_ITEM: |
| 731 | code = menu_driver(mpBanner, cmd); |
| 732 | if (code == E_REQUEST_DENIED) { |
| 733 | if (menu_number() > 0) |
| 734 | code = menu_driver(mpBanner, REQ_FIRST_ITEM); |
| 735 | else |
| 736 | code = menu_driver(mpBanner, REQ_LAST_ITEM); |
| 737 | } |
| 738 | break; |
| 739 | default: |
| 740 | switch (menu_number()) { |
| 741 | case eFile: |
| 742 | code = perform_file_menu(cmd); |
| 743 | break; |
| 744 | case eSelect: |
| 745 | code = perform_select_menu(cmd); |
| 746 | break; |
| 747 | #ifdef TRACE |
| 748 | case eTrace: |
| 749 | code = perform_trace_menu(cmd); |
| 750 | break; |
| 751 | #endif |
| 752 | } |
| 753 | |
| 754 | if ((code == E_REQUEST_DENIED) && (cmd == KEY_MOUSE)) { |
| 755 | code = menu_driver(mpBanner, cmd); |
| 756 | } |
| 757 | |
| 758 | break; |
| 759 | } |
| 760 | |
| 761 | if (code == E_OK) { |
| 762 | this_menu = current_menu(); |
| 763 | if (this_menu != last_menu) { |
| 764 | move(1, 0); |
| 765 | clrtobot(); |
| 766 | box(menu_win(this_menu), 0, 0); |
| 767 | refresh(); |
| 768 | |
| 769 | /* force the current menu to appear */ |
| 770 | menu_display(this_menu); |
| 771 | |
| 772 | last_menu = this_menu; |
| 773 | } |
| 774 | } |
| 775 | wrefresh(menu_win(last_menu)); |
| 776 | if (code == E_UNKNOWN_COMMAND |
| 777 | || code == E_NOT_POSTED) { |
| 778 | if (menu_number() == eFile) |
| 779 | break; |
| 780 | beep(); |
| 781 | } |
| 782 | if (code == E_REQUEST_DENIED) |
| 783 | beep(); |
| 784 | continue; |
| 785 | } |
| 786 | |
| 787 | #ifdef NCURSES_MOUSE_VERSION |
| 788 | mousemask(0, (mmask_t *) 0); |
| 789 | #endif |
| 790 | } |
| 791 | |
| 792 | static void |
| 793 | destroy_menus(void) |
| 794 | { |
| 795 | menu_destroy(mpFile); |
| 796 | menu_destroy(mpSelect); |
| 797 | #ifdef TRACE |
| 798 | menu_destroy(mpTrace); |
| 799 | #endif |
| 800 | menu_destroy(mpBanner); |
| 801 | } |
| 802 | |
| 803 | #if HAVE_RIPOFFLINE |
| 804 | static int |
| 805 | rip_footer(WINDOW *win, int cols) |
| 806 | { |
| 807 | wbkgd(win, A_REVERSE); |
| 808 | werase(win); |
| 809 | wmove(win, 0, 0); |
| 810 | wprintw(win, "footer: %d columns", cols); |
| 811 | wnoutrefresh(win); |
| 812 | return OK; |
| 813 | } |
| 814 | |
| 815 | static int |
| 816 | rip_header(WINDOW *win, int cols) |
| 817 | { |
| 818 | wbkgd(win, A_REVERSE); |
| 819 | werase(win); |
| 820 | wmove(win, 0, 0); |
| 821 | wprintw(win, "header: %d columns", cols); |
| 822 | wnoutrefresh(win); |
| 823 | return OK; |
| 824 | } |
| 825 | #endif /* HAVE_RIPOFFLINE */ |
| 826 | |
| 827 | static void |
| 828 | usage(void) |
| 829 | { |
| 830 | static const char *const tbl[] = |
| 831 | { |
| 832 | "Usage: demo_menus [options]" |
| 833 | ,"" |
| 834 | ,"Options:" |
| 835 | #if HAVE_RIPOFFLINE |
| 836 | ," -f rip-off footer line (can repeat)" |
| 837 | ," -h rip-off header line (can repeat)" |
| 838 | #endif |
| 839 | #ifdef TRACE |
| 840 | ," -t mask specify default trace-level (may toggle with ^T)" |
| 841 | #endif |
| 842 | }; |
| 843 | size_t n; |
| 844 | for (n = 0; n < SIZEOF(tbl); n++) |
| 845 | fprintf(stderr, "%s\n", tbl[n]); |
| 846 | ExitProgram(EXIT_FAILURE); |
| 847 | } |
| 848 | |
| 849 | int |
| 850 | main(int argc, char *argv[]) |
| 851 | { |
| 852 | int c; |
| 853 | |
| 854 | setlocale(LC_ALL, ""); |
| 855 | |
| 856 | while ((c = getopt(argc, argv, "a:de:fhmp:s:t:")) != -1) { |
| 857 | switch (c) { |
| 858 | #if HAVE_RIPOFFLINE |
| 859 | case 'f': |
| 860 | ripoffline(-1, rip_footer); |
| 861 | break; |
| 862 | case 'h': |
| 863 | ripoffline(1, rip_header); |
| 864 | break; |
| 865 | #endif /* HAVE_RIPOFFLINE */ |
| 866 | #ifdef TRACE |
| 867 | case 't': |
| 868 | trace(strtoul(optarg, 0, 0)); |
| 869 | break; |
| 870 | #endif |
| 871 | default: |
| 872 | usage(); |
| 873 | } |
| 874 | } |
| 875 | |
| 876 | initscr(); |
| 877 | noraw(); |
| 878 | cbreak(); |
| 879 | noecho(); |
| 880 | |
| 881 | if (has_colors()) { |
| 882 | start_color(); |
| 883 | init_pair(1, COLOR_RED, COLOR_BLACK); |
| 884 | init_pair(2, COLOR_BLUE, COLOR_WHITE); |
| 885 | } |
| 886 | build_menus(argc > 1 ? argv[1] : 0); |
| 887 | perform_menus(); |
| 888 | destroy_menus(); |
| 889 | |
| 890 | endwin(); |
| 891 | ExitProgram(EXIT_SUCCESS); |
| 892 | } |
| 893 | #else |
| 894 | int |
| 895 | main(void) |
| 896 | { |
| 897 | printf("This program requires the curses menu library\n"); |
| 898 | ExitProgram(EXIT_FAILURE); |
| 899 | } |
| 900 | #endif |