Patrick Georgi | 0588d19 | 2009-08-12 15:00:51 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * util.c |
| 3 | * |
| 4 | * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk) |
| 5 | * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com) |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License |
| 9 | * as published by the Free Software Foundation; either version 2 |
| 10 | * of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 20 | */ |
| 21 | |
| 22 | #include "dialog.h" |
| 23 | #include <stdarg.h> |
| 24 | |
| 25 | struct dialog_info dlg; |
| 26 | |
| 27 | static void set_mono_theme(void) |
| 28 | { |
| 29 | dlg.screen.atr = A_NORMAL; |
| 30 | dlg.shadow.atr = A_NORMAL; |
| 31 | dlg.dialog.atr = A_NORMAL; |
| 32 | dlg.title.atr = A_BOLD; |
| 33 | dlg.border.atr = A_NORMAL; |
| 34 | dlg.button_active.atr = A_REVERSE; |
| 35 | dlg.button_inactive.atr = A_DIM; |
| 36 | dlg.button_key_active.atr = A_REVERSE; |
| 37 | dlg.button_key_inactive.atr = A_BOLD; |
| 38 | dlg.button_label_active.atr = A_REVERSE; |
| 39 | dlg.button_label_inactive.atr = A_NORMAL; |
| 40 | dlg.inputbox.atr = A_NORMAL; |
| 41 | dlg.inputbox_border.atr = A_NORMAL; |
| 42 | dlg.searchbox.atr = A_NORMAL; |
| 43 | dlg.searchbox_title.atr = A_BOLD; |
| 44 | dlg.searchbox_border.atr = A_NORMAL; |
| 45 | dlg.position_indicator.atr = A_BOLD; |
| 46 | dlg.menubox.atr = A_NORMAL; |
| 47 | dlg.menubox_border.atr = A_NORMAL; |
| 48 | dlg.item.atr = A_NORMAL; |
| 49 | dlg.item_selected.atr = A_REVERSE; |
| 50 | dlg.tag.atr = A_BOLD; |
| 51 | dlg.tag_selected.atr = A_REVERSE; |
| 52 | dlg.tag_key.atr = A_BOLD; |
| 53 | dlg.tag_key_selected.atr = A_REVERSE; |
| 54 | dlg.check.atr = A_BOLD; |
| 55 | dlg.check_selected.atr = A_REVERSE; |
| 56 | dlg.uarrow.atr = A_BOLD; |
| 57 | dlg.darrow.atr = A_BOLD; |
| 58 | } |
| 59 | |
| 60 | #define DLG_COLOR(dialog, f, b, h) \ |
| 61 | do { \ |
| 62 | dlg.dialog.fg = (f); \ |
| 63 | dlg.dialog.bg = (b); \ |
| 64 | dlg.dialog.hl = (h); \ |
| 65 | } while (0) |
| 66 | |
| 67 | static void set_classic_theme(void) |
| 68 | { |
| 69 | DLG_COLOR(screen, COLOR_CYAN, COLOR_BLUE, true); |
| 70 | DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, true); |
| 71 | DLG_COLOR(dialog, COLOR_BLACK, COLOR_WHITE, false); |
| 72 | DLG_COLOR(title, COLOR_YELLOW, COLOR_WHITE, true); |
| 73 | DLG_COLOR(border, COLOR_WHITE, COLOR_WHITE, true); |
| 74 | DLG_COLOR(button_active, COLOR_WHITE, COLOR_BLUE, true); |
| 75 | DLG_COLOR(button_inactive, COLOR_BLACK, COLOR_WHITE, false); |
| 76 | DLG_COLOR(button_key_active, COLOR_WHITE, COLOR_BLUE, true); |
| 77 | DLG_COLOR(button_key_inactive, COLOR_RED, COLOR_WHITE, false); |
| 78 | DLG_COLOR(button_label_active, COLOR_YELLOW, COLOR_BLUE, true); |
| 79 | DLG_COLOR(button_label_inactive, COLOR_BLACK, COLOR_WHITE, true); |
| 80 | DLG_COLOR(inputbox, COLOR_BLACK, COLOR_WHITE, false); |
| 81 | DLG_COLOR(inputbox_border, COLOR_BLACK, COLOR_WHITE, false); |
| 82 | DLG_COLOR(searchbox, COLOR_BLACK, COLOR_WHITE, false); |
| 83 | DLG_COLOR(searchbox_title, COLOR_YELLOW, COLOR_WHITE, true); |
| 84 | DLG_COLOR(searchbox_border, COLOR_WHITE, COLOR_WHITE, true); |
| 85 | DLG_COLOR(position_indicator, COLOR_YELLOW, COLOR_WHITE, true); |
| 86 | DLG_COLOR(menubox, COLOR_BLACK, COLOR_WHITE, false); |
| 87 | DLG_COLOR(menubox_border, COLOR_WHITE, COLOR_WHITE, true); |
| 88 | DLG_COLOR(item, COLOR_BLACK, COLOR_WHITE, false); |
| 89 | DLG_COLOR(item_selected, COLOR_WHITE, COLOR_BLUE, true); |
| 90 | DLG_COLOR(tag, COLOR_YELLOW, COLOR_WHITE, true); |
| 91 | DLG_COLOR(tag_selected, COLOR_YELLOW, COLOR_BLUE, true); |
| 92 | DLG_COLOR(tag_key, COLOR_YELLOW, COLOR_WHITE, true); |
| 93 | DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_BLUE, true); |
| 94 | DLG_COLOR(check, COLOR_BLACK, COLOR_WHITE, false); |
| 95 | DLG_COLOR(check_selected, COLOR_WHITE, COLOR_BLUE, true); |
| 96 | DLG_COLOR(uarrow, COLOR_GREEN, COLOR_WHITE, true); |
| 97 | DLG_COLOR(darrow, COLOR_GREEN, COLOR_WHITE, true); |
| 98 | } |
| 99 | |
| 100 | static void set_blackbg_theme(void) |
| 101 | { |
| 102 | DLG_COLOR(screen, COLOR_RED, COLOR_BLACK, true); |
| 103 | DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, false); |
| 104 | DLG_COLOR(dialog, COLOR_WHITE, COLOR_BLACK, false); |
| 105 | DLG_COLOR(title, COLOR_RED, COLOR_BLACK, false); |
| 106 | DLG_COLOR(border, COLOR_BLACK, COLOR_BLACK, true); |
| 107 | |
| 108 | DLG_COLOR(button_active, COLOR_YELLOW, COLOR_RED, false); |
| 109 | DLG_COLOR(button_inactive, COLOR_YELLOW, COLOR_BLACK, false); |
| 110 | DLG_COLOR(button_key_active, COLOR_YELLOW, COLOR_RED, true); |
| 111 | DLG_COLOR(button_key_inactive, COLOR_RED, COLOR_BLACK, false); |
| 112 | DLG_COLOR(button_label_active, COLOR_WHITE, COLOR_RED, false); |
| 113 | DLG_COLOR(button_label_inactive, COLOR_BLACK, COLOR_BLACK, true); |
| 114 | |
| 115 | DLG_COLOR(inputbox, COLOR_YELLOW, COLOR_BLACK, false); |
| 116 | DLG_COLOR(inputbox_border, COLOR_YELLOW, COLOR_BLACK, false); |
| 117 | |
| 118 | DLG_COLOR(searchbox, COLOR_YELLOW, COLOR_BLACK, false); |
| 119 | DLG_COLOR(searchbox_title, COLOR_YELLOW, COLOR_BLACK, true); |
| 120 | DLG_COLOR(searchbox_border, COLOR_BLACK, COLOR_BLACK, true); |
| 121 | |
| 122 | DLG_COLOR(position_indicator, COLOR_RED, COLOR_BLACK, false); |
| 123 | |
| 124 | DLG_COLOR(menubox, COLOR_YELLOW, COLOR_BLACK, false); |
| 125 | DLG_COLOR(menubox_border, COLOR_BLACK, COLOR_BLACK, true); |
| 126 | |
| 127 | DLG_COLOR(item, COLOR_WHITE, COLOR_BLACK, false); |
| 128 | DLG_COLOR(item_selected, COLOR_WHITE, COLOR_RED, false); |
| 129 | |
| 130 | DLG_COLOR(tag, COLOR_RED, COLOR_BLACK, false); |
| 131 | DLG_COLOR(tag_selected, COLOR_YELLOW, COLOR_RED, true); |
| 132 | DLG_COLOR(tag_key, COLOR_RED, COLOR_BLACK, false); |
| 133 | DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_RED, true); |
| 134 | |
| 135 | DLG_COLOR(check, COLOR_YELLOW, COLOR_BLACK, false); |
| 136 | DLG_COLOR(check_selected, COLOR_YELLOW, COLOR_RED, true); |
| 137 | |
| 138 | DLG_COLOR(uarrow, COLOR_RED, COLOR_BLACK, false); |
| 139 | DLG_COLOR(darrow, COLOR_RED, COLOR_BLACK, false); |
| 140 | } |
| 141 | |
| 142 | static void set_bluetitle_theme(void) |
| 143 | { |
| 144 | set_classic_theme(); |
| 145 | DLG_COLOR(title, COLOR_BLUE, COLOR_WHITE, true); |
| 146 | DLG_COLOR(button_key_active, COLOR_YELLOW, COLOR_BLUE, true); |
| 147 | DLG_COLOR(button_label_active, COLOR_WHITE, COLOR_BLUE, true); |
| 148 | DLG_COLOR(searchbox_title, COLOR_BLUE, COLOR_WHITE, true); |
| 149 | DLG_COLOR(position_indicator, COLOR_BLUE, COLOR_WHITE, true); |
| 150 | DLG_COLOR(tag, COLOR_BLUE, COLOR_WHITE, true); |
| 151 | DLG_COLOR(tag_key, COLOR_BLUE, COLOR_WHITE, true); |
| 152 | |
| 153 | } |
| 154 | |
| 155 | /* |
| 156 | * Select color theme |
| 157 | */ |
| 158 | static int set_theme(const char *theme) |
| 159 | { |
| 160 | int use_color = 1; |
| 161 | if (!theme) |
| 162 | set_bluetitle_theme(); |
| 163 | else if (strcmp(theme, "classic") == 0) |
| 164 | set_classic_theme(); |
| 165 | else if (strcmp(theme, "bluetitle") == 0) |
| 166 | set_bluetitle_theme(); |
| 167 | else if (strcmp(theme, "blackbg") == 0) |
| 168 | set_blackbg_theme(); |
| 169 | else if (strcmp(theme, "mono") == 0) |
| 170 | use_color = 0; |
| 171 | |
| 172 | return use_color; |
| 173 | } |
| 174 | |
| 175 | static void init_one_color(struct dialog_color *color) |
| 176 | { |
| 177 | static int pair = 0; |
| 178 | |
| 179 | pair++; |
| 180 | init_pair(pair, color->fg, color->bg); |
| 181 | if (color->hl) |
| 182 | color->atr = A_BOLD | COLOR_PAIR(pair); |
| 183 | else |
| 184 | color->atr = COLOR_PAIR(pair); |
| 185 | } |
| 186 | |
| 187 | static void init_dialog_colors(void) |
| 188 | { |
| 189 | init_one_color(&dlg.screen); |
| 190 | init_one_color(&dlg.shadow); |
| 191 | init_one_color(&dlg.dialog); |
| 192 | init_one_color(&dlg.title); |
| 193 | init_one_color(&dlg.border); |
| 194 | init_one_color(&dlg.button_active); |
| 195 | init_one_color(&dlg.button_inactive); |
| 196 | init_one_color(&dlg.button_key_active); |
| 197 | init_one_color(&dlg.button_key_inactive); |
| 198 | init_one_color(&dlg.button_label_active); |
| 199 | init_one_color(&dlg.button_label_inactive); |
| 200 | init_one_color(&dlg.inputbox); |
| 201 | init_one_color(&dlg.inputbox_border); |
| 202 | init_one_color(&dlg.searchbox); |
| 203 | init_one_color(&dlg.searchbox_title); |
| 204 | init_one_color(&dlg.searchbox_border); |
| 205 | init_one_color(&dlg.position_indicator); |
| 206 | init_one_color(&dlg.menubox); |
| 207 | init_one_color(&dlg.menubox_border); |
| 208 | init_one_color(&dlg.item); |
| 209 | init_one_color(&dlg.item_selected); |
| 210 | init_one_color(&dlg.tag); |
| 211 | init_one_color(&dlg.tag_selected); |
| 212 | init_one_color(&dlg.tag_key); |
| 213 | init_one_color(&dlg.tag_key_selected); |
| 214 | init_one_color(&dlg.check); |
| 215 | init_one_color(&dlg.check_selected); |
| 216 | init_one_color(&dlg.uarrow); |
| 217 | init_one_color(&dlg.darrow); |
| 218 | } |
| 219 | |
| 220 | /* |
| 221 | * Setup for color display |
| 222 | */ |
| 223 | static void color_setup(const char *theme) |
| 224 | { |
| 225 | int use_color; |
| 226 | |
| 227 | use_color = set_theme(theme); |
| 228 | if (use_color && has_colors()) { |
| 229 | start_color(); |
| 230 | init_dialog_colors(); |
| 231 | } else |
| 232 | set_mono_theme(); |
| 233 | } |
| 234 | |
| 235 | /* |
| 236 | * Set window to attribute 'attr' |
| 237 | */ |
| 238 | void attr_clear(WINDOW * win, int height, int width, chtype attr) |
| 239 | { |
| 240 | int i, j; |
| 241 | |
| 242 | wattrset(win, attr); |
| 243 | for (i = 0; i < height; i++) { |
| 244 | wmove(win, i, 0); |
| 245 | for (j = 0; j < width; j++) |
| 246 | waddch(win, ' '); |
| 247 | } |
| 248 | touchwin(win); |
| 249 | } |
| 250 | |
| 251 | void dialog_clear(void) |
| 252 | { |
| 253 | attr_clear(stdscr, LINES, COLS, dlg.screen.atr); |
| 254 | /* Display background title if it exists ... - SLH */ |
| 255 | if (dlg.backtitle != NULL) { |
| 256 | int i; |
| 257 | |
| 258 | wattrset(stdscr, dlg.screen.atr); |
| 259 | mvwaddstr(stdscr, 0, 1, (char *)dlg.backtitle); |
| 260 | wmove(stdscr, 1, 1); |
| 261 | for (i = 1; i < COLS - 1; i++) |
| 262 | waddch(stdscr, ACS_HLINE); |
| 263 | } |
| 264 | wnoutrefresh(stdscr); |
| 265 | } |
| 266 | |
| 267 | /* |
| 268 | * Do some initialization for dialog |
| 269 | */ |
| 270 | int init_dialog(const char *backtitle) |
| 271 | { |
| 272 | int height, width; |
| 273 | |
| 274 | initscr(); /* Init curses */ |
| 275 | getmaxyx(stdscr, height, width); |
| 276 | if (height < 19 || width < 80) { |
| 277 | endwin(); |
| 278 | return -ERRDISPLAYTOOSMALL; |
| 279 | } |
| 280 | |
| 281 | dlg.backtitle = backtitle; |
| 282 | color_setup(getenv("MENUCONFIG_COLOR")); |
| 283 | |
| 284 | keypad(stdscr, TRUE); |
| 285 | cbreak(); |
| 286 | noecho(); |
| 287 | dialog_clear(); |
| 288 | |
| 289 | return 0; |
| 290 | } |
| 291 | |
| 292 | void set_dialog_backtitle(const char *backtitle) |
| 293 | { |
| 294 | dlg.backtitle = backtitle; |
| 295 | } |
| 296 | |
| 297 | /* |
| 298 | * End using dialog functions. |
| 299 | */ |
| 300 | void end_dialog(int x, int y) |
| 301 | { |
| 302 | /* move cursor back to original position */ |
| 303 | move(y, x); |
| 304 | refresh(); |
| 305 | endwin(); |
| 306 | } |
| 307 | |
| 308 | /* Print the title of the dialog. Center the title and truncate |
| 309 | * tile if wider than dialog (- 2 chars). |
| 310 | **/ |
| 311 | void print_title(WINDOW *dialog, const char *title, int width) |
| 312 | { |
| 313 | if (title) { |
| 314 | int tlen = MIN(width - 2, strlen(title)); |
| 315 | wattrset(dialog, dlg.title.atr); |
| 316 | mvwaddch(dialog, 0, (width - tlen) / 2 - 1, ' '); |
| 317 | mvwaddnstr(dialog, 0, (width - tlen)/2, title, tlen); |
| 318 | waddch(dialog, ' '); |
| 319 | } |
| 320 | } |
| 321 | |
| 322 | /* |
| 323 | * Print a string of text in a window, automatically wrap around to the |
| 324 | * next line if the string is too long to fit on one line. Newline |
| 325 | * characters '\n' are replaced by spaces. We start on a new line |
| 326 | * if there is no room for at least 4 nonblanks following a double-space. |
| 327 | */ |
| 328 | void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x) |
| 329 | { |
| 330 | int newl, cur_x, cur_y; |
| 331 | int i, prompt_len, room, wlen; |
| 332 | char tempstr[MAX_LEN + 1], *word, *sp, *sp2; |
| 333 | |
| 334 | strcpy(tempstr, prompt); |
| 335 | |
| 336 | prompt_len = strlen(tempstr); |
| 337 | |
| 338 | /* |
| 339 | * Remove newlines |
| 340 | */ |
| 341 | for (i = 0; i < prompt_len; i++) { |
| 342 | if (tempstr[i] == '\n') |
| 343 | tempstr[i] = ' '; |
| 344 | } |
| 345 | |
| 346 | if (prompt_len <= width - x * 2) { /* If prompt is short */ |
| 347 | wmove(win, y, (width - prompt_len) / 2); |
| 348 | waddstr(win, tempstr); |
| 349 | } else { |
| 350 | cur_x = x; |
| 351 | cur_y = y; |
| 352 | newl = 1; |
| 353 | word = tempstr; |
| 354 | while (word && *word) { |
| 355 | sp = strchr(word, ' '); |
| 356 | if (sp) |
| 357 | *sp++ = 0; |
| 358 | |
| 359 | /* Wrap to next line if either the word does not fit, |
| 360 | or it is the first word of a new sentence, and it is |
| 361 | short, and the next word does not fit. */ |
| 362 | room = width - cur_x; |
| 363 | wlen = strlen(word); |
| 364 | if (wlen > room || |
| 365 | (newl && wlen < 4 && sp |
| 366 | && wlen + 1 + strlen(sp) > room |
| 367 | && (!(sp2 = strchr(sp, ' ')) |
| 368 | || wlen + 1 + (sp2 - sp) > room))) { |
| 369 | cur_y++; |
| 370 | cur_x = x; |
| 371 | } |
| 372 | wmove(win, cur_y, cur_x); |
| 373 | waddstr(win, word); |
| 374 | getyx(win, cur_y, cur_x); |
| 375 | cur_x++; |
| 376 | if (sp && *sp == ' ') { |
| 377 | cur_x++; /* double space */ |
| 378 | while (*++sp == ' ') ; |
| 379 | newl = 1; |
| 380 | } else |
| 381 | newl = 0; |
| 382 | word = sp; |
| 383 | } |
| 384 | } |
| 385 | } |
| 386 | |
| 387 | /* |
| 388 | * Print a button |
| 389 | */ |
| 390 | void print_button(WINDOW * win, const char *label, int y, int x, int selected) |
| 391 | { |
| 392 | int i, temp; |
| 393 | |
| 394 | wmove(win, y, x); |
| 395 | wattrset(win, selected ? dlg.button_active.atr |
| 396 | : dlg.button_inactive.atr); |
| 397 | waddstr(win, "<"); |
| 398 | temp = strspn(label, " "); |
| 399 | label += temp; |
| 400 | wattrset(win, selected ? dlg.button_label_active.atr |
| 401 | : dlg.button_label_inactive.atr); |
| 402 | for (i = 0; i < temp; i++) |
| 403 | waddch(win, ' '); |
| 404 | wattrset(win, selected ? dlg.button_key_active.atr |
| 405 | : dlg.button_key_inactive.atr); |
| 406 | waddch(win, label[0]); |
| 407 | wattrset(win, selected ? dlg.button_label_active.atr |
| 408 | : dlg.button_label_inactive.atr); |
| 409 | waddstr(win, (char *)label + 1); |
| 410 | wattrset(win, selected ? dlg.button_active.atr |
| 411 | : dlg.button_inactive.atr); |
| 412 | waddstr(win, ">"); |
| 413 | wmove(win, y, x + temp + 1); |
| 414 | } |
| 415 | |
| 416 | /* |
| 417 | * Draw a rectangular box with line drawing characters |
| 418 | */ |
| 419 | void |
| 420 | draw_box(WINDOW * win, int y, int x, int height, int width, |
| 421 | chtype box, chtype border) |
| 422 | { |
| 423 | int i, j; |
| 424 | |
| 425 | wattrset(win, 0); |
| 426 | for (i = 0; i < height; i++) { |
| 427 | wmove(win, y + i, x); |
| 428 | for (j = 0; j < width; j++) |
| 429 | if (!i && !j) |
| 430 | waddch(win, border | ACS_ULCORNER); |
| 431 | else if (i == height - 1 && !j) |
| 432 | waddch(win, border | ACS_LLCORNER); |
| 433 | else if (!i && j == width - 1) |
| 434 | waddch(win, box | ACS_URCORNER); |
| 435 | else if (i == height - 1 && j == width - 1) |
| 436 | waddch(win, box | ACS_LRCORNER); |
| 437 | else if (!i) |
| 438 | waddch(win, border | ACS_HLINE); |
| 439 | else if (i == height - 1) |
| 440 | waddch(win, box | ACS_HLINE); |
| 441 | else if (!j) |
| 442 | waddch(win, border | ACS_VLINE); |
| 443 | else if (j == width - 1) |
| 444 | waddch(win, box | ACS_VLINE); |
| 445 | else |
| 446 | waddch(win, box | ' '); |
| 447 | } |
| 448 | } |
| 449 | |
| 450 | /* |
| 451 | * Draw shadows along the right and bottom edge to give a more 3D look |
| 452 | * to the boxes |
| 453 | */ |
| 454 | void draw_shadow(WINDOW * win, int y, int x, int height, int width) |
| 455 | { |
| 456 | int i; |
| 457 | |
| 458 | if (has_colors()) { /* Whether terminal supports color? */ |
| 459 | wattrset(win, dlg.shadow.atr); |
| 460 | wmove(win, y + height, x + 2); |
| 461 | for (i = 0; i < width; i++) |
| 462 | waddch(win, winch(win) & A_CHARTEXT); |
| 463 | for (i = y + 1; i < y + height + 1; i++) { |
| 464 | wmove(win, i, x + width); |
| 465 | waddch(win, winch(win) & A_CHARTEXT); |
| 466 | waddch(win, winch(win) & A_CHARTEXT); |
| 467 | } |
| 468 | wnoutrefresh(win); |
| 469 | } |
| 470 | } |
| 471 | |
| 472 | /* |
| 473 | * Return the position of the first alphabetic character in a string. |
| 474 | */ |
| 475 | int first_alpha(const char *string, const char *exempt) |
| 476 | { |
| 477 | int i, in_paren = 0, c; |
| 478 | |
| 479 | for (i = 0; i < strlen(string); i++) { |
| 480 | c = tolower(string[i]); |
| 481 | |
| 482 | if (strchr("<[(", c)) |
| 483 | ++in_paren; |
| 484 | if (strchr(">])", c) && in_paren > 0) |
| 485 | --in_paren; |
| 486 | |
| 487 | if ((!in_paren) && isalpha(c) && strchr(exempt, c) == 0) |
| 488 | return i; |
| 489 | } |
| 490 | |
| 491 | return 0; |
| 492 | } |
| 493 | |
| 494 | /* |
| 495 | * ncurses uses ESC to detect escaped char sequences. This resutl in |
| 496 | * a small timeout before ESC is actually delivered to the application. |
| 497 | * lxdialog suggest <ESC> <ESC> which is correctly translated to two |
| 498 | * times esc. But then we need to ignore the second esc to avoid stepping |
| 499 | * out one menu too much. Filter away all escaped key sequences since |
| 500 | * keypad(FALSE) turn off ncurses support for escape sequences - and thats |
| 501 | * needed to make notimeout() do as expected. |
| 502 | */ |
| 503 | int on_key_esc(WINDOW *win) |
| 504 | { |
| 505 | int key; |
| 506 | int key2; |
| 507 | int key3; |
| 508 | |
| 509 | nodelay(win, TRUE); |
| 510 | keypad(win, FALSE); |
| 511 | key = wgetch(win); |
| 512 | key2 = wgetch(win); |
| 513 | do { |
| 514 | key3 = wgetch(win); |
| 515 | } while (key3 != ERR); |
| 516 | nodelay(win, FALSE); |
| 517 | keypad(win, TRUE); |
| 518 | if (key == KEY_ESC && key2 == ERR) |
| 519 | return KEY_ESC; |
| 520 | else if (key != ERR && key != KEY_ESC && key2 == ERR) |
| 521 | ungetch(key); |
| 522 | |
| 523 | return -1; |
| 524 | } |
| 525 | |
| 526 | /* redraw screen in new size */ |
| 527 | int on_key_resize(void) |
| 528 | { |
| 529 | dialog_clear(); |
| 530 | #ifdef NCURSES_VERSION |
| 531 | return KEY_RESIZE; |
| 532 | #endif |
| 533 | } |
| 534 | |
| 535 | struct dialog_list *item_cur; |
| 536 | struct dialog_list item_nil; |
| 537 | struct dialog_list *item_head; |
| 538 | |
| 539 | void item_reset(void) |
| 540 | { |
| 541 | struct dialog_list *p, *next; |
| 542 | |
| 543 | for (p = item_head; p; p = next) { |
| 544 | next = p->next; |
| 545 | free(p); |
| 546 | } |
| 547 | item_head = NULL; |
| 548 | item_cur = &item_nil; |
| 549 | } |
| 550 | |
| 551 | void item_make(const char *fmt, ...) |
| 552 | { |
| 553 | va_list ap; |
| 554 | struct dialog_list *p = malloc(sizeof(*p)); |
| 555 | |
| 556 | if (item_head) |
| 557 | item_cur->next = p; |
| 558 | else |
| 559 | item_head = p; |
| 560 | item_cur = p; |
| 561 | memset(p, 0, sizeof(*p)); |
| 562 | |
| 563 | va_start(ap, fmt); |
| 564 | vsnprintf(item_cur->node.str, sizeof(item_cur->node.str), fmt, ap); |
| 565 | va_end(ap); |
| 566 | } |
| 567 | |
| 568 | void item_add_str(const char *fmt, ...) |
| 569 | { |
| 570 | va_list ap; |
| 571 | size_t avail; |
| 572 | |
| 573 | avail = sizeof(item_cur->node.str) - strlen(item_cur->node.str); |
| 574 | |
| 575 | va_start(ap, fmt); |
| 576 | vsnprintf(item_cur->node.str + strlen(item_cur->node.str), |
| 577 | avail, fmt, ap); |
| 578 | item_cur->node.str[sizeof(item_cur->node.str) - 1] = '\0'; |
| 579 | va_end(ap); |
| 580 | } |
| 581 | |
| 582 | void item_set_tag(char tag) |
| 583 | { |
| 584 | item_cur->node.tag = tag; |
| 585 | } |
| 586 | void item_set_data(void *ptr) |
| 587 | { |
| 588 | item_cur->node.data = ptr; |
| 589 | } |
| 590 | |
| 591 | void item_set_selected(int val) |
| 592 | { |
| 593 | item_cur->node.selected = val; |
| 594 | } |
| 595 | |
| 596 | int item_activate_selected(void) |
| 597 | { |
| 598 | item_foreach() |
| 599 | if (item_is_selected()) |
| 600 | return 1; |
| 601 | return 0; |
| 602 | } |
| 603 | |
| 604 | void *item_data(void) |
| 605 | { |
| 606 | return item_cur->node.data; |
| 607 | } |
| 608 | |
| 609 | char item_tag(void) |
| 610 | { |
| 611 | return item_cur->node.tag; |
| 612 | } |
| 613 | |
| 614 | int item_count(void) |
| 615 | { |
| 616 | int n = 0; |
| 617 | struct dialog_list *p; |
| 618 | |
| 619 | for (p = item_head; p; p = p->next) |
| 620 | n++; |
| 621 | return n; |
| 622 | } |
| 623 | |
| 624 | void item_set(int n) |
| 625 | { |
| 626 | int i = 0; |
| 627 | item_foreach() |
| 628 | if (i++ == n) |
| 629 | return; |
| 630 | } |
| 631 | |
| 632 | int item_n(void) |
| 633 | { |
| 634 | int n = 0; |
| 635 | struct dialog_list *p; |
| 636 | |
| 637 | for (p = item_head; p; p = p->next) { |
| 638 | if (p == item_cur) |
| 639 | return n; |
| 640 | n++; |
| 641 | } |
| 642 | return 0; |
| 643 | } |
| 644 | |
| 645 | const char *item_str(void) |
| 646 | { |
| 647 | return item_cur->node.str; |
| 648 | } |
| 649 | |
| 650 | int item_is_selected(void) |
| 651 | { |
| 652 | return (item_cur->node.selected != 0); |
| 653 | } |
| 654 | |
| 655 | int item_is_tag(char tag) |
| 656 | { |
| 657 | return (item_cur->node.tag == tag); |
| 658 | } |