Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * checklist.c -- implements the checklist box |
| 3 | * |
| 4 | * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk) |
| 5 | * Stuart Herbert - S.Herbert@sheffield.ac.uk: radiolist extension |
| 6 | * Alessandro Rubini - rubini@ipvvis.unipv.it: merged the two |
| 7 | * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com) |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or |
| 10 | * modify it under the terms of the GNU General Public License |
| 11 | * as published by the Free Software Foundation; either version 2 |
| 12 | * of the License, or (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 22 | */ |
| 23 | |
| 24 | #include "dialog.h" |
| 25 | |
| 26 | static int list_width, check_x, item_x, checkflag; |
| 27 | |
| 28 | /* |
| 29 | * Print list item |
| 30 | */ |
| 31 | static void |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 32 | print_item(WINDOW * win, const char *item, int status, int choice, int selected) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | { |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 34 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 36 | /* Clear 'residue' of last item */ |
| 37 | wattrset(win, menubox_attr); |
| 38 | wmove(win, choice, 0); |
| 39 | for (i = 0; i < list_width; i++) |
| 40 | waddch(win, ' '); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 42 | wmove(win, choice, check_x); |
| 43 | wattrset(win, selected ? check_selected_attr : check_attr); |
| 44 | if (checkflag == FLAG_CHECK) |
| 45 | wprintw(win, "[%c]", status ? 'X' : ' '); |
| 46 | else |
| 47 | wprintw(win, "(%c)", status ? 'X' : ' '); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 49 | wattrset(win, selected ? tag_selected_attr : tag_attr); |
| 50 | mvwaddch(win, choice, item_x, item[0]); |
| 51 | wattrset(win, selected ? item_selected_attr : item_attr); |
| 52 | waddstr(win, (char *)item + 1); |
| 53 | if (selected) { |
| 54 | wmove(win, choice, check_x + 1); |
| 55 | wrefresh(win); |
| 56 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | } |
| 58 | |
| 59 | /* |
| 60 | * Print the scroll indicators. |
| 61 | */ |
| 62 | static void |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 63 | print_arrows(WINDOW * win, int choice, int item_no, int scroll, |
| 64 | int y, int x, int height) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | { |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 66 | wmove(win, y, x); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 68 | if (scroll > 0) { |
| 69 | wattrset(win, uarrow_attr); |
| 70 | waddch(win, ACS_UARROW); |
| 71 | waddstr(win, "(-)"); |
| 72 | } else { |
| 73 | wattrset(win, menubox_attr); |
| 74 | waddch(win, ACS_HLINE); |
| 75 | waddch(win, ACS_HLINE); |
| 76 | waddch(win, ACS_HLINE); |
| 77 | waddch(win, ACS_HLINE); |
| 78 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 80 | y = y + height + 1; |
| 81 | wmove(win, y, x); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 83 | if ((height < item_no) && (scroll + choice < item_no - 1)) { |
| 84 | wattrset(win, darrow_attr); |
| 85 | waddch(win, ACS_DARROW); |
| 86 | waddstr(win, "(+)"); |
| 87 | } else { |
| 88 | wattrset(win, menubox_border_attr); |
| 89 | waddch(win, ACS_HLINE); |
| 90 | waddch(win, ACS_HLINE); |
| 91 | waddch(win, ACS_HLINE); |
| 92 | waddch(win, ACS_HLINE); |
| 93 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | } |
| 95 | |
| 96 | /* |
| 97 | * Display the termination buttons |
| 98 | */ |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 99 | static void print_buttons(WINDOW * dialog, int height, int width, int selected) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | { |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 101 | int x = width / 2 - 11; |
| 102 | int y = height - 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 104 | print_button(dialog, "Select", y, x, selected == 0); |
| 105 | print_button(dialog, " Help ", y, x + 14, selected == 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 107 | wmove(dialog, y, x + 1 + 14 * selected); |
| 108 | wrefresh(dialog); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | } |
| 110 | |
| 111 | /* |
| 112 | * Display a dialog box with a list of options that can be turned on or off |
| 113 | * The `flag' parameter is used to select between radiolist and checklist. |
| 114 | */ |
| 115 | int |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 116 | dialog_checklist(const char *title, const char *prompt, int height, int width, |
| 117 | int list_height, int item_no, const char *const *items, |
| 118 | int flag) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | { |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 120 | int i, x, y, box_x, box_y; |
| 121 | int key = 0, button = 0, choice = 0, scroll = 0, max_choice, *status; |
| 122 | WINDOW *dialog, *list; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 124 | checkflag = flag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 126 | /* Allocate space for storing item on/off status */ |
| 127 | if ((status = malloc(sizeof(int) * item_no)) == NULL) { |
| 128 | endwin(); |
| 129 | fprintf(stderr, |
| 130 | "\nCan't allocate memory in dialog_checklist().\n"); |
| 131 | exit(-1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 134 | /* Initializes status */ |
| 135 | for (i = 0; i < item_no; i++) { |
| 136 | status[i] = !strcasecmp(items[i * 3 + 2], "on"); |
| 137 | if ((!choice && status[i]) |
| 138 | || !strcasecmp(items[i * 3 + 2], "selected")) |
| 139 | choice = i + 1; |
| 140 | } |
| 141 | if (choice) |
| 142 | choice--; |
| 143 | |
| 144 | max_choice = MIN(list_height, item_no); |
| 145 | |
| 146 | /* center dialog box on screen */ |
| 147 | x = (COLS - width) / 2; |
| 148 | y = (LINES - height) / 2; |
| 149 | |
| 150 | draw_shadow(stdscr, y, x, height, width); |
| 151 | |
| 152 | dialog = newwin(height, width, y, x); |
| 153 | keypad(dialog, TRUE); |
| 154 | |
| 155 | draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr); |
| 156 | wattrset(dialog, border_attr); |
| 157 | mvwaddch(dialog, height - 3, 0, ACS_LTEE); |
| 158 | for (i = 0; i < width - 2; i++) |
| 159 | waddch(dialog, ACS_HLINE); |
| 160 | wattrset(dialog, dialog_attr); |
| 161 | waddch(dialog, ACS_RTEE); |
| 162 | |
| 163 | if (title != NULL && strlen(title) >= width - 2) { |
| 164 | /* truncate long title -- mec */ |
| 165 | char *title2 = malloc(width - 2 + 1); |
| 166 | memcpy(title2, title, width - 2); |
| 167 | title2[width - 2] = '\0'; |
| 168 | title = title2; |
| 169 | } |
| 170 | |
| 171 | if (title != NULL) { |
| 172 | wattrset(dialog, title_attr); |
| 173 | mvwaddch(dialog, 0, (width - strlen(title)) / 2 - 1, ' '); |
| 174 | waddstr(dialog, (char *)title); |
| 175 | waddch(dialog, ' '); |
| 176 | } |
| 177 | |
| 178 | wattrset(dialog, dialog_attr); |
| 179 | print_autowrap(dialog, prompt, width - 2, 1, 3); |
| 180 | |
| 181 | list_width = width - 6; |
| 182 | box_y = height - list_height - 5; |
| 183 | box_x = (width - list_width) / 2 - 1; |
| 184 | |
| 185 | /* create new window for the list */ |
| 186 | list = |
| 187 | subwin(dialog, list_height, list_width, y + box_y + 1, |
| 188 | x + box_x + 1); |
| 189 | |
| 190 | keypad(list, TRUE); |
| 191 | |
| 192 | /* draw a box around the list items */ |
| 193 | draw_box(dialog, box_y, box_x, list_height + 2, list_width + 2, |
| 194 | menubox_border_attr, menubox_attr); |
| 195 | |
| 196 | /* Find length of longest item in order to center checklist */ |
| 197 | check_x = 0; |
| 198 | for (i = 0; i < item_no; i++) |
| 199 | check_x = MAX(check_x, +strlen(items[i * 3 + 1]) + 4); |
| 200 | |
| 201 | check_x = (list_width - check_x) / 2; |
| 202 | item_x = check_x + 4; |
| 203 | |
| 204 | if (choice >= list_height) { |
| 205 | scroll = choice - list_height + 1; |
| 206 | choice -= scroll; |
| 207 | } |
| 208 | |
| 209 | /* Print the list */ |
| 210 | for (i = 0; i < max_choice; i++) { |
| 211 | print_item(list, items[(scroll + i) * 3 + 1], |
| 212 | status[i + scroll], i, i == choice); |
| 213 | } |
| 214 | |
| 215 | print_arrows(dialog, choice, item_no, scroll, |
| 216 | box_y, box_x + check_x + 5, list_height); |
| 217 | |
| 218 | print_buttons(dialog, height, width, 0); |
| 219 | |
| 220 | wnoutrefresh(list); |
| 221 | wnoutrefresh(dialog); |
| 222 | doupdate(); |
| 223 | |
| 224 | while (key != ESC) { |
| 225 | key = wgetch(dialog); |
| 226 | |
| 227 | for (i = 0; i < max_choice; i++) |
| 228 | if (toupper(key) == |
| 229 | toupper(items[(scroll + i) * 3 + 1][0])) |
| 230 | break; |
| 231 | |
| 232 | if (i < max_choice || key == KEY_UP || key == KEY_DOWN || |
| 233 | key == '+' || key == '-') { |
| 234 | if (key == KEY_UP || key == '-') { |
| 235 | if (!choice) { |
| 236 | if (!scroll) |
| 237 | continue; |
| 238 | /* Scroll list down */ |
| 239 | if (list_height > 1) { |
| 240 | /* De-highlight current first item */ |
| 241 | print_item(list, |
| 242 | items[scroll * 3 + |
| 243 | 1], |
| 244 | status[scroll], 0, |
| 245 | FALSE); |
| 246 | scrollok(list, TRUE); |
| 247 | wscrl(list, -1); |
| 248 | scrollok(list, FALSE); |
| 249 | } |
| 250 | scroll--; |
| 251 | print_item(list, items[scroll * 3 + 1], |
| 252 | status[scroll], 0, TRUE); |
| 253 | wnoutrefresh(list); |
| 254 | |
| 255 | print_arrows(dialog, choice, item_no, |
| 256 | scroll, box_y, |
| 257 | box_x + check_x + 5, |
| 258 | list_height); |
| 259 | |
| 260 | wrefresh(dialog); |
| 261 | |
| 262 | continue; /* wait for another key press */ |
| 263 | } else |
| 264 | i = choice - 1; |
| 265 | } else if (key == KEY_DOWN || key == '+') { |
| 266 | if (choice == max_choice - 1) { |
| 267 | if (scroll + choice >= item_no - 1) |
| 268 | continue; |
| 269 | /* Scroll list up */ |
| 270 | if (list_height > 1) { |
| 271 | /* De-highlight current last item before scrolling up */ |
| 272 | print_item(list, |
| 273 | items[(scroll + |
| 274 | max_choice - |
| 275 | 1) * 3 + 1], |
| 276 | status[scroll + |
| 277 | max_choice - |
| 278 | 1], |
| 279 | max_choice - 1, |
| 280 | FALSE); |
| 281 | scrollok(list, TRUE); |
| 282 | wscrl(list, 1); |
| 283 | scrollok(list, FALSE); |
| 284 | } |
| 285 | scroll++; |
| 286 | print_item(list, |
| 287 | items[(scroll + max_choice - |
| 288 | 1) * 3 + 1], |
| 289 | status[scroll + max_choice - |
| 290 | 1], max_choice - 1, |
| 291 | TRUE); |
| 292 | wnoutrefresh(list); |
| 293 | |
| 294 | print_arrows(dialog, choice, item_no, |
| 295 | scroll, box_y, |
| 296 | box_x + check_x + 5, |
| 297 | list_height); |
| 298 | |
| 299 | wrefresh(dialog); |
| 300 | |
| 301 | continue; /* wait for another key press */ |
| 302 | } else |
| 303 | i = choice + 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | } |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 305 | if (i != choice) { |
| 306 | /* De-highlight current item */ |
| 307 | print_item(list, |
| 308 | items[(scroll + choice) * 3 + 1], |
| 309 | status[scroll + choice], choice, |
| 310 | FALSE); |
| 311 | /* Highlight new item */ |
| 312 | choice = i; |
| 313 | print_item(list, |
| 314 | items[(scroll + choice) * 3 + 1], |
| 315 | status[scroll + choice], choice, |
| 316 | TRUE); |
| 317 | wnoutrefresh(list); |
| 318 | wrefresh(dialog); |
| 319 | } |
| 320 | continue; /* wait for another key press */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | } |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 322 | switch (key) { |
| 323 | case 'H': |
| 324 | case 'h': |
| 325 | case '?': |
| 326 | fprintf(stderr, "%s", items[(scroll + choice) * 3]); |
| 327 | delwin(dialog); |
| 328 | free(status); |
| 329 | return 1; |
| 330 | case TAB: |
| 331 | case KEY_LEFT: |
| 332 | case KEY_RIGHT: |
| 333 | button = ((key == KEY_LEFT ? --button : ++button) < 0) |
| 334 | ? 1 : (button > 1 ? 0 : button); |
| 335 | |
| 336 | print_buttons(dialog, height, width, button); |
| 337 | wrefresh(dialog); |
| 338 | break; |
| 339 | case 'S': |
| 340 | case 's': |
| 341 | case ' ': |
| 342 | case '\n': |
| 343 | if (!button) { |
| 344 | if (flag == FLAG_CHECK) { |
| 345 | status[scroll + choice] = |
| 346 | !status[scroll + choice]; |
| 347 | wmove(list, choice, check_x); |
| 348 | wattrset(list, check_selected_attr); |
| 349 | wprintw(list, "[%c]", |
| 350 | status[scroll + |
| 351 | choice] ? 'X' : ' '); |
| 352 | } else { |
| 353 | if (!status[scroll + choice]) { |
| 354 | for (i = 0; i < item_no; i++) |
| 355 | status[i] = 0; |
| 356 | status[scroll + choice] = 1; |
| 357 | for (i = 0; i < max_choice; i++) |
| 358 | print_item(list, |
| 359 | items[(scroll |
| 360 | + |
| 361 | i) * |
| 362 | 3 + 1], |
| 363 | status[scroll |
| 364 | + i], |
| 365 | i, |
| 366 | i == choice); |
| 367 | } |
| 368 | } |
| 369 | wnoutrefresh(list); |
| 370 | wrefresh(dialog); |
| 371 | |
| 372 | for (i = 0; i < item_no; i++) { |
| 373 | if (status[i]) { |
| 374 | if (flag == FLAG_CHECK) { |
| 375 | fprintf(stderr, |
| 376 | "\"%s\" ", |
| 377 | items[i * 3]); |
| 378 | } else { |
| 379 | fprintf(stderr, "%s", |
| 380 | items[i * 3]); |
| 381 | } |
| 382 | |
| 383 | } |
| 384 | } |
| 385 | } else |
| 386 | fprintf(stderr, "%s", |
| 387 | items[(scroll + choice) * 3]); |
| 388 | delwin(dialog); |
| 389 | free(status); |
| 390 | return button; |
| 391 | case 'X': |
| 392 | case 'x': |
| 393 | key = ESC; |
| 394 | case ESC: |
| 395 | break; |
| 396 | } |
| 397 | |
| 398 | /* Now, update everything... */ |
| 399 | doupdate(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | } |
| 401 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame^] | 402 | delwin(dialog); |
| 403 | free(status); |
| 404 | return -1; /* ESC pressed */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | } |