1 /* 2 * util.c 3 * 4 * ORIGINAL AUTHOR: Savio Lam ([email protected]) 5 * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap ([email protected]) 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 24 struct dialog_info dlg; 25 26 static void set_mono_theme(void) 27 { 28 dlg.screen.atr = A_NORMAL; 29 dlg.shadow.atr = A_NORMAL; 30 dlg.dialog.atr = A_NORMAL; 31 dlg.title.atr = A_BOLD; 32 dlg.border.atr = A_NORMAL; 33 dlg.button_active.atr = A_REVERSE; 34 dlg.button_inactive.atr = A_DIM; 35 dlg.button_key_active.atr = A_REVERSE; 36 dlg.button_key_inactive.atr = A_BOLD; 37 dlg.button_label_active.atr = A_REVERSE; 38 dlg.button_label_inactive.atr = A_NORMAL; 39 dlg.inputbox.atr = A_NORMAL; 40 dlg.inputbox_border.atr = A_NORMAL; 41 dlg.searchbox.atr = A_NORMAL; 42 dlg.searchbox_title.atr = A_BOLD; 43 dlg.searchbox_border.atr = A_NORMAL; 44 dlg.position_indicator.atr = A_BOLD; 45 dlg.menubox.atr = A_NORMAL; 46 dlg.menubox_border.atr = A_NORMAL; 47 dlg.item.atr = A_NORMAL; 48 dlg.item_selected.atr = A_REVERSE; 49 dlg.tag.atr = A_BOLD; 50 dlg.tag_selected.atr = A_REVERSE; 51 dlg.tag_key.atr = A_BOLD; 52 dlg.tag_key_selected.atr = A_REVERSE; 53 dlg.check.atr = A_BOLD; 54 dlg.check_selected.atr = A_REVERSE; 55 dlg.uarrow.atr = A_BOLD; 56 dlg.darrow.atr = A_BOLD; 57 } 58 59 #define DLG_COLOR(dialog, f, b, h) \ 60 do { \ 61 dlg.dialog.fg = (f); \ 62 dlg.dialog.bg = (b); \ 63 dlg.dialog.hl = (h); \ 64 } while (0) 65 66 static void set_classic_theme(void) 67 { 68 DLG_COLOR(screen, COLOR_CYAN, COLOR_BLUE, true); 69 DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, true); 70 DLG_COLOR(dialog, COLOR_BLACK, COLOR_WHITE, false); 71 DLG_COLOR(title, COLOR_YELLOW, COLOR_WHITE, true); 72 DLG_COLOR(border, COLOR_WHITE, COLOR_WHITE, true); 73 DLG_COLOR(button_active, COLOR_WHITE, COLOR_BLUE, true); 74 DLG_COLOR(button_inactive, COLOR_BLACK, COLOR_WHITE, false); 75 DLG_COLOR(button_key_active, COLOR_WHITE, COLOR_BLUE, true); 76 DLG_COLOR(button_key_inactive, COLOR_RED, COLOR_WHITE, false); 77 DLG_COLOR(button_label_active, COLOR_YELLOW, COLOR_BLUE, true); 78 DLG_COLOR(button_label_inactive, COLOR_BLACK, COLOR_WHITE, true); 79 DLG_COLOR(inputbox, COLOR_BLACK, COLOR_WHITE, false); 80 DLG_COLOR(inputbox_border, COLOR_BLACK, COLOR_WHITE, false); 81 DLG_COLOR(searchbox, COLOR_BLACK, COLOR_WHITE, false); 82 DLG_COLOR(searchbox_title, COLOR_YELLOW, COLOR_WHITE, true); 83 DLG_COLOR(searchbox_border, COLOR_WHITE, COLOR_WHITE, true); 84 DLG_COLOR(position_indicator, COLOR_YELLOW, COLOR_WHITE, true); 85 DLG_COLOR(menubox, COLOR_BLACK, COLOR_WHITE, false); 86 DLG_COLOR(menubox_border, COLOR_WHITE, COLOR_WHITE, true); 87 DLG_COLOR(item, COLOR_BLACK, COLOR_WHITE, false); 88 DLG_COLOR(item_selected, COLOR_WHITE, COLOR_BLUE, true); 89 DLG_COLOR(tag, COLOR_YELLOW, COLOR_WHITE, true); 90 DLG_COLOR(tag_selected, COLOR_YELLOW, COLOR_BLUE, true); 91 DLG_COLOR(tag_key, COLOR_YELLOW, COLOR_WHITE, true); 92 DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_BLUE, true); 93 DLG_COLOR(check, COLOR_BLACK, COLOR_WHITE, false); 94 DLG_COLOR(check_selected, COLOR_WHITE, COLOR_BLUE, true); 95 DLG_COLOR(uarrow, COLOR_GREEN, COLOR_WHITE, true); 96 DLG_COLOR(darrow, COLOR_GREEN, COLOR_WHITE, true); 97 } 98 99 static void set_blackbg_theme(void) 100 { 101 DLG_COLOR(screen, COLOR_RED, COLOR_BLACK, true); 102 DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, false); 103 DLG_COLOR(dialog, COLOR_WHITE, COLOR_BLACK, false); 104 DLG_COLOR(title, COLOR_RED, COLOR_BLACK, false); 105 DLG_COLOR(border, COLOR_BLACK, COLOR_BLACK, true); 106 107 DLG_COLOR(button_active, COLOR_YELLOW, COLOR_RED, false); 108 DLG_COLOR(button_inactive, COLOR_YELLOW, COLOR_BLACK, false); 109 DLG_COLOR(button_key_active, COLOR_YELLOW, COLOR_RED, true); 110 DLG_COLOR(button_key_inactive, COLOR_RED, COLOR_BLACK, false); 111 DLG_COLOR(button_label_active, COLOR_WHITE, COLOR_RED, false); 112 DLG_COLOR(button_label_inactive, COLOR_BLACK, COLOR_BLACK, true); 113 114 DLG_COLOR(inputbox, COLOR_YELLOW, COLOR_BLACK, false); 115 DLG_COLOR(inputbox_border, COLOR_YELLOW, COLOR_BLACK, false); 116 117 DLG_COLOR(searchbox, COLOR_YELLOW, COLOR_BLACK, false); 118 DLG_COLOR(searchbox_title, COLOR_YELLOW, COLOR_BLACK, true); 119 DLG_COLOR(searchbox_border, COLOR_BLACK, COLOR_BLACK, true); 120 121 DLG_COLOR(position_indicator, COLOR_RED, COLOR_BLACK, false); 122 123 DLG_COLOR(menubox, COLOR_YELLOW, COLOR_BLACK, false); 124 DLG_COLOR(menubox_border, COLOR_BLACK, COLOR_BLACK, true); 125 126 DLG_COLOR(item, COLOR_WHITE, COLOR_BLACK, false); 127 DLG_COLOR(item_selected, COLOR_WHITE, COLOR_RED, false); 128 129 DLG_COLOR(tag, COLOR_RED, COLOR_BLACK, false); 130 DLG_COLOR(tag_selected, COLOR_YELLOW, COLOR_RED, true); 131 DLG_COLOR(tag_key, COLOR_RED, COLOR_BLACK, false); 132 DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_RED, true); 133 134 DLG_COLOR(check, COLOR_YELLOW, COLOR_BLACK, false); 135 DLG_COLOR(check_selected, COLOR_YELLOW, COLOR_RED, true); 136 137 DLG_COLOR(uarrow, COLOR_RED, COLOR_BLACK, false); 138 DLG_COLOR(darrow, COLOR_RED, COLOR_BLACK, false); 139 } 140 141 static void set_bluetitle_theme(void) 142 { 143 set_classic_theme(); 144 DLG_COLOR(title, COLOR_BLUE, COLOR_WHITE, true); 145 DLG_COLOR(button_key_active, COLOR_YELLOW, COLOR_BLUE, true); 146 DLG_COLOR(button_label_active, COLOR_WHITE, COLOR_BLUE, true); 147 DLG_COLOR(searchbox_title, COLOR_BLUE, COLOR_WHITE, true); 148 DLG_COLOR(position_indicator, COLOR_BLUE, COLOR_WHITE, true); 149 DLG_COLOR(tag, COLOR_BLUE, COLOR_WHITE, true); 150 DLG_COLOR(tag_key, COLOR_BLUE, COLOR_WHITE, true); 151 152 } 153 154 /* 155 * Select color theme 156 */ 157 static int set_theme(const char *theme) 158 { 159 int use_color = 1; 160 if (!theme) 161 set_bluetitle_theme(); 162 else if (strcmp(theme, "classic") == 0) 163 set_classic_theme(); 164 else if (strcmp(theme, "bluetitle") == 0) 165 set_bluetitle_theme(); 166 else if (strcmp(theme, "blackbg") == 0) 167 set_blackbg_theme(); 168 else if (strcmp(theme, "mono") == 0) 169 use_color = 0; 170 171 return use_color; 172 } 173 174 static void init_one_color(struct dialog_color *color) 175 { 176 static int pair = 0; 177 178 pair++; 179 init_pair(pair, color->fg, color->bg); 180 if (color->hl) 181 color->atr = A_BOLD | COLOR_PAIR(pair); 182 else 183 color->atr = COLOR_PAIR(pair); 184 } 185 186 static void init_dialog_colors(void) 187 { 188 init_one_color(&dlg.screen); 189 init_one_color(&dlg.shadow); 190 init_one_color(&dlg.dialog); 191 init_one_color(&dlg.title); 192 init_one_color(&dlg.border); 193 init_one_color(&dlg.button_active); 194 init_one_color(&dlg.button_inactive); 195 init_one_color(&dlg.button_key_active); 196 init_one_color(&dlg.button_key_inactive); 197 init_one_color(&dlg.button_label_active); 198 init_one_color(&dlg.button_label_inactive); 199 init_one_color(&dlg.inputbox); 200 init_one_color(&dlg.inputbox_border); 201 init_one_color(&dlg.searchbox); 202 init_one_color(&dlg.searchbox_title); 203 init_one_color(&dlg.searchbox_border); 204 init_one_color(&dlg.position_indicator); 205 init_one_color(&dlg.menubox); 206 init_one_color(&dlg.menubox_border); 207 init_one_color(&dlg.item); 208 init_one_color(&dlg.item_selected); 209 init_one_color(&dlg.tag); 210 init_one_color(&dlg.tag_selected); 211 init_one_color(&dlg.tag_key); 212 init_one_color(&dlg.tag_key_selected); 213 init_one_color(&dlg.check); 214 init_one_color(&dlg.check_selected); 215 init_one_color(&dlg.uarrow); 216 init_one_color(&dlg.darrow); 217 } 218 219 /* 220 * Setup for color display 221 */ 222 static void color_setup(const char *theme) 223 { 224 if (set_theme(theme)) { 225 if (has_colors()) { /* Terminal supports color? */ 226 start_color(); 227 init_dialog_colors(); 228 } 229 } 230 else 231 { 232 set_mono_theme(); 233 } 234 } 235 236 /* 237 * Set window to attribute 'attr' 238 */ 239 void attr_clear(WINDOW * win, int height, int width, chtype attr) 240 { 241 int i, j; 242 243 wattrset(win, attr); 244 for (i = 0; i < height; i++) { 245 wmove(win, i, 0); 246 for (j = 0; j < width; j++) 247 waddch(win, ' '); 248 } 249 touchwin(win); 250 } 251 252 void dialog_clear(void) 253 { 254 attr_clear(stdscr, LINES, COLS, dlg.screen.atr); 255 /* Display background title if it exists ... - SLH */ 256 if (dlg.backtitle != NULL) { 257 int i; 258 259 wattrset(stdscr, dlg.screen.atr); 260 mvwaddstr(stdscr, 0, 1, (char *)dlg.backtitle); 261 wmove(stdscr, 1, 1); 262 for (i = 1; i < COLS - 1; i++) 263 waddch(stdscr, ACS_HLINE); 264 } 265 wnoutrefresh(stdscr); 266 } 267 268 /* 269 * Do some initialization for dialog 270 */ 271 void init_dialog(void) 272 { 273 initscr(); /* Init curses */ 274 keypad(stdscr, TRUE); 275 cbreak(); 276 noecho(); 277 color_setup(getenv("MENUCONFIG_COLOR")); 278 dialog_clear(); 279 } 280 281 /* 282 * End using dialog functions. 283 */ 284 void end_dialog(void) 285 { 286 endwin(); 287 } 288 289 /* Print the title of the dialog. Center the title and truncate 290 * tile if wider than dialog (- 2 chars). 291 **/ 292 void print_title(WINDOW *dialog, const char *title, int width) 293 { 294 if (title) { 295 int tlen = MIN(width - 2, strlen(title)); 296 wattrset(dialog, dlg.title.atr); 297 mvwaddch(dialog, 0, (width - tlen) / 2 - 1, ' '); 298 mvwaddnstr(dialog, 0, (width - tlen)/2, title, tlen); 299 waddch(dialog, ' '); 300 } 301 } 302 303 /* 304 * Print a string of text in a window, automatically wrap around to the 305 * next line if the string is too long to fit on one line. Newline 306 * characters '\n' are replaced by spaces. We start on a new line 307 * if there is no room for at least 4 nonblanks following a double-space. 308 */ 309 void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x) 310 { 311 int newl, cur_x, cur_y; 312 int i, prompt_len, room, wlen; 313 char tempstr[MAX_LEN + 1], *word, *sp, *sp2; 314 315 strcpy(tempstr, prompt); 316 317 prompt_len = strlen(tempstr); 318 319 /* 320 * Remove newlines 321 */ 322 for (i = 0; i < prompt_len; i++) { 323 if (tempstr[i] == '\n') 324 tempstr[i] = ' '; 325 } 326 327 if (prompt_len <= width - x * 2) { /* If prompt is short */ 328 wmove(win, y, (width - prompt_len) / 2); 329 waddstr(win, tempstr); 330 } else { 331 cur_x = x; 332 cur_y = y; 333 newl = 1; 334 word = tempstr; 335 while (word && *word) { 336 sp = index(word, ' '); 337 if (sp) 338 *sp++ = 0; 339 340 /* Wrap to next line if either the word does not fit, 341 or it is the first word of a new sentence, and it is 342 short, and the next word does not fit. */ 343 room = width - cur_x; 344 wlen = strlen(word); 345 if (wlen > room || 346 (newl && wlen < 4 && sp 347 && wlen + 1 + strlen(sp) > room 348 && (!(sp2 = index(sp, ' ')) 349 || wlen + 1 + (sp2 - sp) > room))) { 350 cur_y++; 351 cur_x = x; 352 } 353 wmove(win, cur_y, cur_x); 354 waddstr(win, word); 355 getyx(win, cur_y, cur_x); 356 cur_x++; 357 if (sp && *sp == ' ') { 358 cur_x++; /* double space */ 359 while (*++sp == ' ') ; 360 newl = 1; 361 } else 362 newl = 0; 363 word = sp; 364 } 365 } 366 } 367 368 /* 369 * Print a button 370 */ 371 void print_button(WINDOW * win, const char *label, int y, int x, int selected) 372 { 373 int i, temp; 374 375 wmove(win, y, x); 376 wattrset(win, selected ? dlg.button_active.atr 377 : dlg.button_inactive.atr); 378 waddstr(win, "<"); 379 temp = strspn(label, " "); 380 label += temp; 381 wattrset(win, selected ? dlg.button_label_active.atr 382 : dlg.button_label_inactive.atr); 383 for (i = 0; i < temp; i++) 384 waddch(win, ' '); 385 wattrset(win, selected ? dlg.button_key_active.atr 386 : dlg.button_key_inactive.atr); 387 waddch(win, label[0]); 388 wattrset(win, selected ? dlg.button_label_active.atr 389 : dlg.button_label_inactive.atr); 390 waddstr(win, (char *)label + 1); 391 wattrset(win, selected ? dlg.button_active.atr 392 : dlg.button_inactive.atr); 393 waddstr(win, ">"); 394 wmove(win, y, x + temp + 1); 395 } 396 397 /* 398 * Draw a rectangular box with line drawing characters 399 */ 400 void 401 draw_box(WINDOW * win, int y, int x, int height, int width, 402 chtype box, chtype border) 403 { 404 int i, j; 405 406 wattrset(win, 0); 407 for (i = 0; i < height; i++) { 408 wmove(win, y + i, x); 409 for (j = 0; j < width; j++) 410 if (!i && !j) 411 waddch(win, border | ACS_ULCORNER); 412 else if (i == height - 1 && !j) 413 waddch(win, border | ACS_LLCORNER); 414 else if (!i && j == width - 1) 415 waddch(win, box | ACS_URCORNER); 416 else if (i == height - 1 && j == width - 1) 417 waddch(win, box | ACS_LRCORNER); 418 else if (!i) 419 waddch(win, border | ACS_HLINE); 420 else if (i == height - 1) 421 waddch(win, box | ACS_HLINE); 422 else if (!j) 423 waddch(win, border | ACS_VLINE); 424 else if (j == width - 1) 425 waddch(win, box | ACS_VLINE); 426 else 427 waddch(win, box | ' '); 428 } 429 } 430 431 /* 432 * Draw shadows along the right and bottom edge to give a more 3D look 433 * to the boxes 434 */ 435 void draw_shadow(WINDOW * win, int y, int x, int height, int width) 436 { 437 int i; 438 439 if (has_colors()) { /* Whether terminal supports color? */ 440 wattrset(win, dlg.shadow.atr); 441 wmove(win, y + height, x + 2); 442 for (i = 0; i < width; i++) 443 waddch(win, winch(win) & A_CHARTEXT); 444 for (i = y + 1; i < y + height + 1; i++) { 445 wmove(win, i, x + width); 446 waddch(win, winch(win) & A_CHARTEXT); 447 waddch(win, winch(win) & A_CHARTEXT); 448 } 449 wnoutrefresh(win); 450 } 451 } 452 453 /* 454 * Return the position of the first alphabetic character in a string. 455 */ 456 int first_alpha(const char *string, const char *exempt) 457 { 458 int i, in_paren = 0, c; 459 460 for (i = 0; i < strlen(string); i++) { 461 c = tolower(string[i]); 462 463 if (strchr("<[(", c)) 464 ++in_paren; 465 if (strchr(">])", c) && in_paren > 0) 466 --in_paren; 467 468 if ((!in_paren) && isalpha(c) && strchr(exempt, c) == 0) 469 return i; 470 } 471 472 return 0; 473 } 474