| 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 |
|
|---|
| 24 |
|
|---|
| 25 | /* use colors by default? */
|
|---|
| 26 | bool use_colors = 1;
|
|---|
| 27 |
|
|---|
| 28 | const char *backtitle = NULL;
|
|---|
| 29 |
|
|---|
| 30 | const char *dialog_result;
|
|---|
| 31 |
|
|---|
| 32 | /*
|
|---|
| 33 | * Attribute values, default is for mono display
|
|---|
| 34 | */
|
|---|
| 35 | chtype attributes[] =
|
|---|
| 36 | {
|
|---|
| 37 | A_NORMAL, /* screen_attr */
|
|---|
| 38 | A_NORMAL, /* shadow_attr */
|
|---|
| 39 | A_NORMAL, /* dialog_attr */
|
|---|
| 40 | A_BOLD, /* title_attr */
|
|---|
| 41 | A_NORMAL, /* border_attr */
|
|---|
| 42 | A_REVERSE, /* button_active_attr */
|
|---|
| 43 | A_DIM, /* button_inactive_attr */
|
|---|
| 44 | A_REVERSE, /* button_key_active_attr */
|
|---|
| 45 | A_BOLD, /* button_key_inactive_attr */
|
|---|
| 46 | A_REVERSE, /* button_label_active_attr */
|
|---|
| 47 | A_NORMAL, /* button_label_inactive_attr */
|
|---|
| 48 | A_NORMAL, /* inputbox_attr */
|
|---|
| 49 | A_NORMAL, /* inputbox_border_attr */
|
|---|
| 50 | A_NORMAL, /* searchbox_attr */
|
|---|
| 51 | A_BOLD, /* searchbox_title_attr */
|
|---|
| 52 | A_NORMAL, /* searchbox_border_attr */
|
|---|
| 53 | A_BOLD, /* position_indicator_attr */
|
|---|
| 54 | A_NORMAL, /* menubox_attr */
|
|---|
| 55 | A_NORMAL, /* menubox_border_attr */
|
|---|
| 56 | A_NORMAL, /* item_attr */
|
|---|
| 57 | A_REVERSE, /* item_selected_attr */
|
|---|
| 58 | A_BOLD, /* tag_attr */
|
|---|
| 59 | A_REVERSE, /* tag_selected_attr */
|
|---|
| 60 | A_BOLD, /* tag_key_attr */
|
|---|
| 61 | A_REVERSE, /* tag_key_selected_attr */
|
|---|
| 62 | A_BOLD, /* check_attr */
|
|---|
| 63 | A_REVERSE, /* check_selected_attr */
|
|---|
| 64 | A_BOLD, /* uarrow_attr */
|
|---|
| 65 | A_BOLD /* darrow_attr */
|
|---|
| 66 | };
|
|---|
| 67 |
|
|---|
| 68 |
|
|---|
| 69 | #include "colors.h"
|
|---|
| 70 |
|
|---|
| 71 | /*
|
|---|
| 72 | * Table of color values
|
|---|
| 73 | */
|
|---|
| 74 | int color_table[][3] =
|
|---|
| 75 | {
|
|---|
| 76 | {SCREEN_FG, SCREEN_BG, SCREEN_HL},
|
|---|
| 77 | {SHADOW_FG, SHADOW_BG, SHADOW_HL},
|
|---|
| 78 | {DIALOG_FG, DIALOG_BG, DIALOG_HL},
|
|---|
| 79 | {TITLE_FG, TITLE_BG, TITLE_HL},
|
|---|
| 80 | {BORDER_FG, BORDER_BG, BORDER_HL},
|
|---|
| 81 | {BUTTON_ACTIVE_FG, BUTTON_ACTIVE_BG, BUTTON_ACTIVE_HL},
|
|---|
| 82 | {BUTTON_INACTIVE_FG, BUTTON_INACTIVE_BG, BUTTON_INACTIVE_HL},
|
|---|
| 83 | {BUTTON_KEY_ACTIVE_FG, BUTTON_KEY_ACTIVE_BG, BUTTON_KEY_ACTIVE_HL},
|
|---|
| 84 | {BUTTON_KEY_INACTIVE_FG, BUTTON_KEY_INACTIVE_BG, BUTTON_KEY_INACTIVE_HL},
|
|---|
| 85 | {BUTTON_LABEL_ACTIVE_FG, BUTTON_LABEL_ACTIVE_BG, BUTTON_LABEL_ACTIVE_HL},
|
|---|
| 86 | {BUTTON_LABEL_INACTIVE_FG, BUTTON_LABEL_INACTIVE_BG,
|
|---|
| 87 | BUTTON_LABEL_INACTIVE_HL},
|
|---|
| 88 | {INPUTBOX_FG, INPUTBOX_BG, INPUTBOX_HL},
|
|---|
| 89 | {INPUTBOX_BORDER_FG, INPUTBOX_BORDER_BG, INPUTBOX_BORDER_HL},
|
|---|
| 90 | {SEARCHBOX_FG, SEARCHBOX_BG, SEARCHBOX_HL},
|
|---|
| 91 | {SEARCHBOX_TITLE_FG, SEARCHBOX_TITLE_BG, SEARCHBOX_TITLE_HL},
|
|---|
| 92 | {SEARCHBOX_BORDER_FG, SEARCHBOX_BORDER_BG, SEARCHBOX_BORDER_HL},
|
|---|
| 93 | {POSITION_INDICATOR_FG, POSITION_INDICATOR_BG, POSITION_INDICATOR_HL},
|
|---|
| 94 | {MENUBOX_FG, MENUBOX_BG, MENUBOX_HL},
|
|---|
| 95 | {MENUBOX_BORDER_FG, MENUBOX_BORDER_BG, MENUBOX_BORDER_HL},
|
|---|
| 96 | {ITEM_FG, ITEM_BG, ITEM_HL},
|
|---|
| 97 | {ITEM_SELECTED_FG, ITEM_SELECTED_BG, ITEM_SELECTED_HL},
|
|---|
| 98 | {TAG_FG, TAG_BG, TAG_HL},
|
|---|
| 99 | {TAG_SELECTED_FG, TAG_SELECTED_BG, TAG_SELECTED_HL},
|
|---|
| 100 | {TAG_KEY_FG, TAG_KEY_BG, TAG_KEY_HL},
|
|---|
| 101 | {TAG_KEY_SELECTED_FG, TAG_KEY_SELECTED_BG, TAG_KEY_SELECTED_HL},
|
|---|
| 102 | {CHECK_FG, CHECK_BG, CHECK_HL},
|
|---|
| 103 | {CHECK_SELECTED_FG, CHECK_SELECTED_BG, CHECK_SELECTED_HL},
|
|---|
| 104 | {UARROW_FG, UARROW_BG, UARROW_HL},
|
|---|
| 105 | {DARROW_FG, DARROW_BG, DARROW_HL},
|
|---|
| 106 | }; /* color_table */
|
|---|
| 107 |
|
|---|
| 108 | /*
|
|---|
| 109 | * Set window to attribute 'attr'
|
|---|
| 110 | */
|
|---|
| 111 | void
|
|---|
| 112 | attr_clear (WINDOW * win, int height, int width, chtype attr)
|
|---|
| 113 | {
|
|---|
| 114 | int i, j;
|
|---|
| 115 |
|
|---|
| 116 | wattrset (win, attr);
|
|---|
| 117 | for (i = 0; i < height; i++) {
|
|---|
| 118 | wmove (win, i, 0);
|
|---|
| 119 | for (j = 0; j < width; j++)
|
|---|
| 120 | waddch (win, ' ');
|
|---|
| 121 | }
|
|---|
| 122 | touchwin (win);
|
|---|
| 123 | }
|
|---|
| 124 |
|
|---|
| 125 | void dialog_clear (void)
|
|---|
| 126 | {
|
|---|
| 127 | attr_clear (stdscr, LINES, COLS, screen_attr);
|
|---|
| 128 | /* Display background title if it exists ... - SLH */
|
|---|
| 129 | if (backtitle != NULL) {
|
|---|
| 130 | int i;
|
|---|
| 131 |
|
|---|
| 132 | wattrset (stdscr, screen_attr);
|
|---|
| 133 | mvwaddstr (stdscr, 0, 1, (char *)backtitle);
|
|---|
| 134 | wmove (stdscr, 1, 1);
|
|---|
| 135 | for (i = 1; i < COLS - 1; i++)
|
|---|
| 136 | waddch (stdscr, ACS_HLINE);
|
|---|
| 137 | }
|
|---|
| 138 | wnoutrefresh (stdscr);
|
|---|
| 139 | }
|
|---|
| 140 |
|
|---|
| 141 | /*
|
|---|
| 142 | * Do some initialization for dialog
|
|---|
| 143 | */
|
|---|
| 144 | void
|
|---|
| 145 | init_dialog (void)
|
|---|
| 146 | {
|
|---|
| 147 | initscr (); /* Init curses */
|
|---|
| 148 | keypad (stdscr, TRUE);
|
|---|
| 149 | cbreak ();
|
|---|
| 150 | noecho ();
|
|---|
| 151 |
|
|---|
| 152 |
|
|---|
| 153 | if (use_colors) /* Set up colors */
|
|---|
| 154 | color_setup ();
|
|---|
| 155 |
|
|---|
| 156 |
|
|---|
| 157 | dialog_clear ();
|
|---|
| 158 | }
|
|---|
| 159 |
|
|---|
| 160 | /*
|
|---|
| 161 | * Setup for color display
|
|---|
| 162 | */
|
|---|
| 163 | void
|
|---|
| 164 | color_setup (void)
|
|---|
| 165 | {
|
|---|
| 166 | int i;
|
|---|
| 167 |
|
|---|
| 168 | if (has_colors ()) { /* Terminal supports color? */
|
|---|
| 169 | start_color ();
|
|---|
| 170 |
|
|---|
| 171 | /* Initialize color pairs */
|
|---|
| 172 | for (i = 0; i < ATTRIBUTE_COUNT; i++)
|
|---|
| 173 | init_pair (i + 1, color_table[i][0], color_table[i][1]);
|
|---|
| 174 |
|
|---|
| 175 | /* Setup color attributes */
|
|---|
| 176 | for (i = 0; i < ATTRIBUTE_COUNT; i++)
|
|---|
| 177 | attributes[i] = C_ATTR (color_table[i][2], i + 1);
|
|---|
| 178 | }
|
|---|
| 179 | }
|
|---|
| 180 |
|
|---|
| 181 | /*
|
|---|
| 182 | * End using dialog functions.
|
|---|
| 183 | */
|
|---|
| 184 | void
|
|---|
| 185 | end_dialog (void)
|
|---|
| 186 | {
|
|---|
| 187 | endwin ();
|
|---|
| 188 | }
|
|---|
| 189 |
|
|---|
| 190 |
|
|---|
| 191 | /*
|
|---|
| 192 | * Print a string of text in a window, automatically wrap around to the
|
|---|
| 193 | * next line if the string is too long to fit on one line. Newline
|
|---|
| 194 | * characters '\n' are replaced by spaces. We start on a new line
|
|---|
| 195 | * if there is no room for at least 4 nonblanks following a double-space.
|
|---|
| 196 | */
|
|---|
| 197 | void
|
|---|
| 198 | print_autowrap (WINDOW * win, const char *prompt, int width, int y, int x)
|
|---|
| 199 | {
|
|---|
| 200 | int newl, cur_x, cur_y;
|
|---|
| 201 | int i, prompt_len, room, wlen;
|
|---|
| 202 | char tempstr[MAX_LEN + 1], *word, *sp, *sp2;
|
|---|
| 203 |
|
|---|
| 204 | strcpy (tempstr, prompt);
|
|---|
| 205 |
|
|---|
| 206 | prompt_len = strlen(tempstr);
|
|---|
| 207 |
|
|---|
| 208 | /*
|
|---|
| 209 | * Remove newlines
|
|---|
| 210 | */
|
|---|
| 211 | for(i=0; i<prompt_len; i++) {
|
|---|
| 212 | if(tempstr[i] == '\n') tempstr[i] = ' ';
|
|---|
| 213 | }
|
|---|
| 214 |
|
|---|
| 215 | if (prompt_len <= width - x * 2) { /* If prompt is short */
|
|---|
| 216 | wmove (win, y, (width - prompt_len) / 2);
|
|---|
| 217 | waddstr (win, tempstr);
|
|---|
| 218 | } else {
|
|---|
| 219 | cur_x = x;
|
|---|
| 220 | cur_y = y;
|
|---|
| 221 | newl = 1;
|
|---|
| 222 | word = tempstr;
|
|---|
| 223 | while (word && *word) {
|
|---|
| 224 | sp = strchr(word, ' ');
|
|---|
| 225 | if (sp)
|
|---|
| 226 | *sp++ = 0;
|
|---|
| 227 |
|
|---|
| 228 | /* Wrap to next line if either the word does not fit,
|
|---|
| 229 | or it is the first word of a new sentence, and it is
|
|---|
| 230 | short, and the next word does not fit. */
|
|---|
| 231 | room = width - cur_x;
|
|---|
| 232 | wlen = strlen(word);
|
|---|
| 233 | if (wlen > room ||
|
|---|
| 234 | (newl && wlen < 4 && sp && wlen+1+strlen(sp) > room
|
|---|
| 235 | && (!(sp2 = strchr(sp, ' ')) || wlen+1+(sp2-sp) > room))) {
|
|---|
| 236 | cur_y++;
|
|---|
| 237 | cur_x = x;
|
|---|
| 238 | }
|
|---|
| 239 | wmove (win, cur_y, cur_x);
|
|---|
| 240 | waddstr (win, word);
|
|---|
| 241 | getyx (win, cur_y, cur_x);
|
|---|
| 242 | cur_x++;
|
|---|
| 243 | if (sp && *sp == ' ') {
|
|---|
| 244 | cur_x++; /* double space */
|
|---|
| 245 | while (*++sp == ' ');
|
|---|
| 246 | newl = 1;
|
|---|
| 247 | } else
|
|---|
| 248 | newl = 0;
|
|---|
| 249 | word = sp;
|
|---|
| 250 | }
|
|---|
| 251 | }
|
|---|
| 252 | }
|
|---|
| 253 |
|
|---|
| 254 | /*
|
|---|
| 255 | * Print a button
|
|---|
| 256 | */
|
|---|
| 257 | void
|
|---|
| 258 | print_button (WINDOW * win, const char *label, int y, int x, int selected)
|
|---|
| 259 | {
|
|---|
| 260 | int i, temp;
|
|---|
| 261 |
|
|---|
| 262 | wmove (win, y, x);
|
|---|
| 263 | wattrset (win, selected ? button_active_attr : button_inactive_attr);
|
|---|
| 264 | waddstr (win, "<");
|
|---|
| 265 | temp = strspn (label, " ");
|
|---|
| 266 | label += temp;
|
|---|
| 267 | wattrset (win, selected ? button_label_active_attr
|
|---|
| 268 | : button_label_inactive_attr);
|
|---|
| 269 | for (i = 0; i < temp; i++)
|
|---|
| 270 | waddch (win, ' ');
|
|---|
| 271 | wattrset (win, selected ? button_key_active_attr
|
|---|
| 272 | : button_key_inactive_attr);
|
|---|
| 273 | waddch (win, label[0]);
|
|---|
| 274 | wattrset (win, selected ? button_label_active_attr
|
|---|
| 275 | : button_label_inactive_attr);
|
|---|
| 276 | waddstr (win, (char *)label + 1);
|
|---|
| 277 | wattrset (win, selected ? button_active_attr : button_inactive_attr);
|
|---|
| 278 | waddstr (win, ">");
|
|---|
| 279 | wmove (win, y, x + temp + 1);
|
|---|
| 280 | }
|
|---|
| 281 |
|
|---|
| 282 | /*
|
|---|
| 283 | * Draw a rectangular box with line drawing characters
|
|---|
| 284 | */
|
|---|
| 285 | void
|
|---|
| 286 | draw_box (WINDOW * win, int y, int x, int height, int width,
|
|---|
| 287 | chtype box, chtype border)
|
|---|
| 288 | {
|
|---|
| 289 | int i, j;
|
|---|
| 290 |
|
|---|
| 291 | wattrset (win, 0);
|
|---|
| 292 | for (i = 0; i < height; i++) {
|
|---|
| 293 | wmove (win, y + i, x);
|
|---|
| 294 | for (j = 0; j < width; j++)
|
|---|
| 295 | if (!i && !j)
|
|---|
| 296 | waddch (win, border | ACS_ULCORNER);
|
|---|
| 297 | else if (i == height - 1 && !j)
|
|---|
| 298 | waddch (win, border | ACS_LLCORNER);
|
|---|
| 299 | else if (!i && j == width - 1)
|
|---|
| 300 | waddch (win, box | ACS_URCORNER);
|
|---|
| 301 | else if (i == height - 1 && j == width - 1)
|
|---|
| 302 | waddch (win, box | ACS_LRCORNER);
|
|---|
| 303 | else if (!i)
|
|---|
| 304 | waddch (win, border | ACS_HLINE);
|
|---|
| 305 | else if (i == height - 1)
|
|---|
| 306 | waddch (win, box | ACS_HLINE);
|
|---|
| 307 | else if (!j)
|
|---|
| 308 | waddch (win, border | ACS_VLINE);
|
|---|
| 309 | else if (j == width - 1)
|
|---|
| 310 | waddch (win, box | ACS_VLINE);
|
|---|
| 311 | else
|
|---|
| 312 | waddch (win, box | ' ');
|
|---|
| 313 | }
|
|---|
| 314 | }
|
|---|
| 315 |
|
|---|
| 316 | /*
|
|---|
| 317 | * Draw shadows along the right and bottom edge to give a more 3D look
|
|---|
| 318 | * to the boxes
|
|---|
| 319 | */
|
|---|
| 320 | void
|
|---|
| 321 | draw_shadow (WINDOW * win, int y, int x, int height, int width)
|
|---|
| 322 | {
|
|---|
| 323 | int i;
|
|---|
| 324 |
|
|---|
| 325 | if (has_colors ()) { /* Whether terminal supports color? */
|
|---|
| 326 | wattrset (win, shadow_attr);
|
|---|
| 327 | wmove (win, y + height, x + 2);
|
|---|
| 328 | for (i = 0; i < width; i++)
|
|---|
| 329 | waddch (win, winch (win) & A_CHARTEXT);
|
|---|
| 330 | for (i = y + 1; i < y + height + 1; i++) {
|
|---|
| 331 | wmove (win, i, x + width);
|
|---|
| 332 | waddch (win, winch (win) & A_CHARTEXT);
|
|---|
| 333 | waddch (win, winch (win) & A_CHARTEXT);
|
|---|
| 334 | }
|
|---|
| 335 | wnoutrefresh (win);
|
|---|
| 336 | }
|
|---|
| 337 | }
|
|---|
| 338 |
|
|---|
| 339 | /*
|
|---|
| 340 | * Return the position of the first alphabetic character in a string.
|
|---|
| 341 | */
|
|---|
| 342 | int
|
|---|
| 343 | first_alpha(const char *string, const char *exempt)
|
|---|
| 344 | {
|
|---|
| 345 | int i, in_paren=0, c;
|
|---|
| 346 |
|
|---|
| 347 | for (i = 0; i < strlen(string); i++) {
|
|---|
| 348 | c = tolower(string[i]);
|
|---|
| 349 |
|
|---|
| 350 | if (strchr("<[(", c)) ++in_paren;
|
|---|
| 351 | if (strchr(">])", c) && in_paren > 0) --in_paren;
|
|---|
| 352 |
|
|---|
| 353 | if ((! in_paren) && isalpha(c) &&
|
|---|
| 354 | strchr(exempt, c) == 0)
|
|---|
| 355 | return i;
|
|---|
| 356 | }
|
|---|
| 357 |
|
|---|
| 358 | return 0;
|
|---|
| 359 | }
|
|---|
| 360 |
|
|---|
| 361 | /*
|
|---|
| 362 | * Get the first selected item in the dialog_list_item list.
|
|---|
| 363 | */
|
|---|
| 364 | struct dialog_list_item *
|
|---|
| 365 | first_sel_item(int item_no, struct dialog_list_item ** items)
|
|---|
| 366 | {
|
|---|
| 367 | int i;
|
|---|
| 368 |
|
|---|
| 369 | for (i = 0; i < item_no; i++) {
|
|---|
| 370 | if (items[i]->selected)
|
|---|
| 371 | return items[i];
|
|---|
| 372 | }
|
|---|
| 373 |
|
|---|
| 374 | return NULL;
|
|---|
| 375 | }
|
|---|
