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1da177e4 LT |
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 | ||
98e5a157 | 24 | struct dialog_info dlg; |
1da177e4 | 25 | |
98e5a157 SR |
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 | } | |
1da177e4 | 58 | |
98e5a157 SR |
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 | ||
45897213 SR |
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 | ||
350b5b76 SR |
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 | ||
45897213 SR |
154 | /* |
155 | * Select color theme | |
156 | */ | |
157 | static int set_theme(const char *theme) | |
158 | { | |
159 | int use_color = 1; | |
160 | if (!theme) | |
350b5b76 | 161 | set_bluetitle_theme(); |
45897213 SR |
162 | else if (strcmp(theme, "classic") == 0) |
163 | set_classic_theme(); | |
350b5b76 SR |
164 | else if (strcmp(theme, "bluetitle") == 0) |
165 | set_bluetitle_theme(); | |
45897213 SR |
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 | ||
98e5a157 SR |
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 | } | |
1da177e4 LT |
218 | |
219 | /* | |
98e5a157 | 220 | * Setup for color display |
1da177e4 | 221 | */ |
45897213 | 222 | static void color_setup(const char *theme) |
98e5a157 | 223 | { |
c154348f RZ |
224 | int use_color; |
225 | ||
226 | use_color = set_theme(theme); | |
227 | if (use_color && has_colors()) { | |
228 | start_color(); | |
229 | init_dialog_colors(); | |
230 | } else | |
98e5a157 | 231 | set_mono_theme(); |
98e5a157 | 232 | } |
1da177e4 LT |
233 | |
234 | /* | |
235 | * Set window to attribute 'attr' | |
236 | */ | |
b1c5f1c6 | 237 | void attr_clear(WINDOW * win, int height, int width, chtype attr) |
1da177e4 | 238 | { |
b1c5f1c6 SR |
239 | int i, j; |
240 | ||
241 | wattrset(win, attr); | |
242 | for (i = 0; i < height; i++) { | |
243 | wmove(win, i, 0); | |
244 | for (j = 0; j < width; j++) | |
245 | waddch(win, ' '); | |
246 | } | |
247 | touchwin(win); | |
1da177e4 LT |
248 | } |
249 | ||
b1c5f1c6 | 250 | void dialog_clear(void) |
1da177e4 | 251 | { |
98e5a157 | 252 | attr_clear(stdscr, LINES, COLS, dlg.screen.atr); |
b1c5f1c6 | 253 | /* Display background title if it exists ... - SLH */ |
98e5a157 | 254 | if (dlg.backtitle != NULL) { |
b1c5f1c6 SR |
255 | int i; |
256 | ||
98e5a157 SR |
257 | wattrset(stdscr, dlg.screen.atr); |
258 | mvwaddstr(stdscr, 0, 1, (char *)dlg.backtitle); | |
b1c5f1c6 SR |
259 | wmove(stdscr, 1, 1); |
260 | for (i = 1; i < COLS - 1; i++) | |
261 | waddch(stdscr, ACS_HLINE); | |
262 | } | |
263 | wnoutrefresh(stdscr); | |
1da177e4 LT |
264 | } |
265 | ||
266 | /* | |
267 | * Do some initialization for dialog | |
268 | */ | |
09af091f | 269 | int init_dialog(const char *backtitle) |
2982de69 | 270 | { |
09af091f LM |
271 | int height, width; |
272 | ||
273 | initscr(); /* Init curses */ | |
274 | getmaxyx(stdscr, height, width); | |
275 | if (height < 19 || width < 80) { | |
276 | endwin(); | |
277 | return -ERRDISPLAYTOOSMALL; | |
278 | } | |
2982de69 | 279 | |
95e30f95 | 280 | dlg.backtitle = backtitle; |
09af091f | 281 | color_setup(getenv("MENUCONFIG_COLOR")); |
95e30f95 | 282 | |
b1c5f1c6 SR |
283 | keypad(stdscr, TRUE); |
284 | cbreak(); | |
285 | noecho(); | |
b1c5f1c6 | 286 | dialog_clear(); |
09af091f LM |
287 | |
288 | return 0; | |
289 | } | |
290 | ||
291 | void set_dialog_backtitle(const char *backtitle) | |
292 | { | |
293 | dlg.backtitle = backtitle; | |
1da177e4 LT |
294 | } |
295 | ||
1da177e4 LT |
296 | /* |
297 | * End using dialog functions. | |
298 | */ | |
09af091f | 299 | void end_dialog(int x, int y) |
1da177e4 | 300 | { |
09af091f LM |
301 | /* move cursor back to original position */ |
302 | move(y, x); | |
303 | refresh(); | |
b1c5f1c6 | 304 | endwin(); |
1da177e4 LT |
305 | } |
306 | ||
fa7009d5 SR |
307 | /* Print the title of the dialog. Center the title and truncate |
308 | * tile if wider than dialog (- 2 chars). | |
309 | **/ | |
310 | void print_title(WINDOW *dialog, const char *title, int width) | |
311 | { | |
312 | if (title) { | |
313 | int tlen = MIN(width - 2, strlen(title)); | |
98e5a157 | 314 | wattrset(dialog, dlg.title.atr); |
fa7009d5 SR |
315 | mvwaddch(dialog, 0, (width - tlen) / 2 - 1, ' '); |
316 | mvwaddnstr(dialog, 0, (width - tlen)/2, title, tlen); | |
317 | waddch(dialog, ' '); | |
318 | } | |
319 | } | |
320 | ||
1da177e4 LT |
321 | /* |
322 | * Print a string of text in a window, automatically wrap around to the | |
323 | * next line if the string is too long to fit on one line. Newline | |
324 | * characters '\n' are replaced by spaces. We start on a new line | |
325 | * if there is no room for at least 4 nonblanks following a double-space. | |
326 | */ | |
b1c5f1c6 | 327 | void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x) |
1da177e4 | 328 | { |
b1c5f1c6 SR |
329 | int newl, cur_x, cur_y; |
330 | int i, prompt_len, room, wlen; | |
331 | char tempstr[MAX_LEN + 1], *word, *sp, *sp2; | |
332 | ||
333 | strcpy(tempstr, prompt); | |
334 | ||
335 | prompt_len = strlen(tempstr); | |
336 | ||
337 | /* | |
338 | * Remove newlines | |
339 | */ | |
340 | for (i = 0; i < prompt_len; i++) { | |
341 | if (tempstr[i] == '\n') | |
342 | tempstr[i] = ' '; | |
343 | } | |
344 | ||
345 | if (prompt_len <= width - x * 2) { /* If prompt is short */ | |
346 | wmove(win, y, (width - prompt_len) / 2); | |
347 | waddstr(win, tempstr); | |
348 | } else { | |
1da177e4 | 349 | cur_x = x; |
b1c5f1c6 | 350 | cur_y = y; |
1da177e4 | 351 | newl = 1; |
b1c5f1c6 SR |
352 | word = tempstr; |
353 | while (word && *word) { | |
f88d2055 | 354 | sp = strchr(word, ' '); |
b1c5f1c6 SR |
355 | if (sp) |
356 | *sp++ = 0; | |
357 | ||
358 | /* Wrap to next line if either the word does not fit, | |
359 | or it is the first word of a new sentence, and it is | |
360 | short, and the next word does not fit. */ | |
361 | room = width - cur_x; | |
362 | wlen = strlen(word); | |
363 | if (wlen > room || | |
364 | (newl && wlen < 4 && sp | |
365 | && wlen + 1 + strlen(sp) > room | |
f88d2055 | 366 | && (!(sp2 = strchr(sp, ' ')) |
b1c5f1c6 SR |
367 | || wlen + 1 + (sp2 - sp) > room))) { |
368 | cur_y++; | |
369 | cur_x = x; | |
370 | } | |
371 | wmove(win, cur_y, cur_x); | |
372 | waddstr(win, word); | |
373 | getyx(win, cur_y, cur_x); | |
374 | cur_x++; | |
375 | if (sp && *sp == ' ') { | |
376 | cur_x++; /* double space */ | |
377 | while (*++sp == ' ') ; | |
378 | newl = 1; | |
379 | } else | |
380 | newl = 0; | |
381 | word = sp; | |
382 | } | |
1da177e4 | 383 | } |
1da177e4 LT |
384 | } |
385 | ||
386 | /* | |
387 | * Print a button | |
388 | */ | |
b1c5f1c6 | 389 | void print_button(WINDOW * win, const char *label, int y, int x, int selected) |
1da177e4 | 390 | { |
b1c5f1c6 SR |
391 | int i, temp; |
392 | ||
393 | wmove(win, y, x); | |
98e5a157 SR |
394 | wattrset(win, selected ? dlg.button_active.atr |
395 | : dlg.button_inactive.atr); | |
b1c5f1c6 SR |
396 | waddstr(win, "<"); |
397 | temp = strspn(label, " "); | |
398 | label += temp; | |
98e5a157 SR |
399 | wattrset(win, selected ? dlg.button_label_active.atr |
400 | : dlg.button_label_inactive.atr); | |
b1c5f1c6 SR |
401 | for (i = 0; i < temp; i++) |
402 | waddch(win, ' '); | |
98e5a157 SR |
403 | wattrset(win, selected ? dlg.button_key_active.atr |
404 | : dlg.button_key_inactive.atr); | |
b1c5f1c6 | 405 | waddch(win, label[0]); |
98e5a157 SR |
406 | wattrset(win, selected ? dlg.button_label_active.atr |
407 | : dlg.button_label_inactive.atr); | |
b1c5f1c6 | 408 | waddstr(win, (char *)label + 1); |
98e5a157 SR |
409 | wattrset(win, selected ? dlg.button_active.atr |
410 | : dlg.button_inactive.atr); | |
b1c5f1c6 SR |
411 | waddstr(win, ">"); |
412 | wmove(win, y, x + temp + 1); | |
1da177e4 LT |
413 | } |
414 | ||
415 | /* | |
416 | * Draw a rectangular box with line drawing characters | |
417 | */ | |
418 | void | |
b1c5f1c6 SR |
419 | draw_box(WINDOW * win, int y, int x, int height, int width, |
420 | chtype box, chtype border) | |
1da177e4 | 421 | { |
b1c5f1c6 SR |
422 | int i, j; |
423 | ||
424 | wattrset(win, 0); | |
425 | for (i = 0; i < height; i++) { | |
426 | wmove(win, y + i, x); | |
427 | for (j = 0; j < width; j++) | |
428 | if (!i && !j) | |
429 | waddch(win, border | ACS_ULCORNER); | |
430 | else if (i == height - 1 && !j) | |
431 | waddch(win, border | ACS_LLCORNER); | |
432 | else if (!i && j == width - 1) | |
433 | waddch(win, box | ACS_URCORNER); | |
434 | else if (i == height - 1 && j == width - 1) | |
435 | waddch(win, box | ACS_LRCORNER); | |
436 | else if (!i) | |
437 | waddch(win, border | ACS_HLINE); | |
438 | else if (i == height - 1) | |
439 | waddch(win, box | ACS_HLINE); | |
440 | else if (!j) | |
441 | waddch(win, border | ACS_VLINE); | |
442 | else if (j == width - 1) | |
443 | waddch(win, box | ACS_VLINE); | |
444 | else | |
445 | waddch(win, box | ' '); | |
446 | } | |
1da177e4 LT |
447 | } |
448 | ||
449 | /* | |
450 | * Draw shadows along the right and bottom edge to give a more 3D look | |
451 | * to the boxes | |
452 | */ | |
b1c5f1c6 | 453 | void draw_shadow(WINDOW * win, int y, int x, int height, int width) |
1da177e4 | 454 | { |
b1c5f1c6 SR |
455 | int i; |
456 | ||
457 | if (has_colors()) { /* Whether terminal supports color? */ | |
98e5a157 | 458 | wattrset(win, dlg.shadow.atr); |
b1c5f1c6 SR |
459 | wmove(win, y + height, x + 2); |
460 | for (i = 0; i < width; i++) | |
461 | waddch(win, winch(win) & A_CHARTEXT); | |
462 | for (i = y + 1; i < y + height + 1; i++) { | |
463 | wmove(win, i, x + width); | |
464 | waddch(win, winch(win) & A_CHARTEXT); | |
465 | waddch(win, winch(win) & A_CHARTEXT); | |
466 | } | |
467 | wnoutrefresh(win); | |
1da177e4 | 468 | } |
1da177e4 LT |
469 | } |
470 | ||
471 | /* | |
472 | * Return the position of the first alphabetic character in a string. | |
473 | */ | |
b1c5f1c6 | 474 | int first_alpha(const char *string, const char *exempt) |
1da177e4 | 475 | { |
b1c5f1c6 | 476 | int i, in_paren = 0, c; |
1da177e4 LT |
477 | |
478 | for (i = 0; i < strlen(string); i++) { | |
479 | c = tolower(string[i]); | |
480 | ||
b1c5f1c6 SR |
481 | if (strchr("<[(", c)) |
482 | ++in_paren; | |
483 | if (strchr(">])", c) && in_paren > 0) | |
484 | --in_paren; | |
1da177e4 | 485 | |
b1c5f1c6 | 486 | if ((!in_paren) && isalpha(c) && strchr(exempt, c) == 0) |
1da177e4 LT |
487 | return i; |
488 | } | |
489 | ||
490 | return 0; | |
491 | } | |
2982de69 | 492 | |
f3cbcdc9 SR |
493 | /* |
494 | * ncurses uses ESC to detect escaped char sequences. This resutl in | |
495 | * a small timeout before ESC is actually delivered to the application. | |
496 | * lxdialog suggest <ESC> <ESC> which is correctly translated to two | |
497 | * times esc. But then we need to ignore the second esc to avoid stepping | |
498 | * out one menu too much. Filter away all escaped key sequences since | |
499 | * keypad(FALSE) turn off ncurses support for escape sequences - and thats | |
500 | * needed to make notimeout() do as expected. | |
501 | */ | |
502 | int on_key_esc(WINDOW *win) | |
503 | { | |
504 | int key; | |
505 | int key2; | |
506 | int key3; | |
507 | ||
508 | nodelay(win, TRUE); | |
509 | keypad(win, FALSE); | |
510 | key = wgetch(win); | |
511 | key2 = wgetch(win); | |
512 | do { | |
513 | key3 = wgetch(win); | |
514 | } while (key3 != ERR); | |
515 | nodelay(win, FALSE); | |
516 | keypad(win, TRUE); | |
517 | if (key == KEY_ESC && key2 == ERR) | |
518 | return KEY_ESC; | |
519 | else if (key != ERR && key != KEY_ESC && key2 == ERR) | |
520 | ungetch(key); | |
521 | ||
522 | return -1; | |
523 | } | |
524 | ||
c8dc68ad SR |
525 | /* redraw screen in new size */ |
526 | int on_key_resize(void) | |
527 | { | |
528 | dialog_clear(); | |
529 | return KEY_RESIZE; | |
530 | } | |
f3cbcdc9 | 531 | |
2982de69 SR |
532 | struct dialog_list *item_cur; |
533 | struct dialog_list item_nil; | |
534 | struct dialog_list *item_head; | |
535 | ||
536 | void item_reset(void) | |
537 | { | |
538 | struct dialog_list *p, *next; | |
539 | ||
540 | for (p = item_head; p; p = next) { | |
541 | next = p->next; | |
542 | free(p); | |
543 | } | |
544 | item_head = NULL; | |
545 | item_cur = &item_nil; | |
546 | } | |
547 | ||
548 | void item_make(const char *fmt, ...) | |
549 | { | |
550 | va_list ap; | |
551 | struct dialog_list *p = malloc(sizeof(*p)); | |
552 | ||
553 | if (item_head) | |
554 | item_cur->next = p; | |
555 | else | |
556 | item_head = p; | |
557 | item_cur = p; | |
558 | memset(p, 0, sizeof(*p)); | |
559 | ||
560 | va_start(ap, fmt); | |
561 | vsnprintf(item_cur->node.str, sizeof(item_cur->node.str), fmt, ap); | |
562 | va_end(ap); | |
563 | } | |
564 | ||
565 | void item_add_str(const char *fmt, ...) | |
566 | { | |
567 | va_list ap; | |
568 | size_t avail; | |
569 | ||
570 | avail = sizeof(item_cur->node.str) - strlen(item_cur->node.str); | |
571 | ||
572 | va_start(ap, fmt); | |
573 | vsnprintf(item_cur->node.str + strlen(item_cur->node.str), | |
574 | avail, fmt, ap); | |
575 | item_cur->node.str[sizeof(item_cur->node.str) - 1] = '\0'; | |
576 | va_end(ap); | |
577 | } | |
578 | ||
579 | void item_set_tag(char tag) | |
580 | { | |
581 | item_cur->node.tag = tag; | |
582 | } | |
583 | void item_set_data(void *ptr) | |
584 | { | |
585 | item_cur->node.data = ptr; | |
586 | } | |
587 | ||
588 | void item_set_selected(int val) | |
589 | { | |
590 | item_cur->node.selected = val; | |
591 | } | |
592 | ||
593 | int item_activate_selected(void) | |
594 | { | |
595 | item_foreach() | |
596 | if (item_is_selected()) | |
597 | return 1; | |
598 | return 0; | |
599 | } | |
600 | ||
601 | void *item_data(void) | |
602 | { | |
603 | return item_cur->node.data; | |
604 | } | |
605 | ||
606 | char item_tag(void) | |
607 | { | |
608 | return item_cur->node.tag; | |
609 | } | |
610 | ||
611 | int item_count(void) | |
612 | { | |
613 | int n = 0; | |
614 | struct dialog_list *p; | |
615 | ||
616 | for (p = item_head; p; p = p->next) | |
617 | n++; | |
618 | return n; | |
619 | } | |
620 | ||
621 | void item_set(int n) | |
622 | { | |
623 | int i = 0; | |
624 | item_foreach() | |
625 | if (i++ == n) | |
626 | return; | |
627 | } | |
628 | ||
629 | int item_n(void) | |
630 | { | |
631 | int n = 0; | |
632 | struct dialog_list *p; | |
633 | ||
634 | for (p = item_head; p; p = p->next) { | |
635 | if (p == item_cur) | |
636 | return n; | |
637 | n++; | |
638 | } | |
639 | return 0; | |
640 | } | |
641 | ||
642 | const char *item_str(void) | |
643 | { | |
644 | return item_cur->node.str; | |
645 | } | |
646 | ||
647 | int item_is_selected(void) | |
648 | { | |
649 | return (item_cur->node.selected != 0); | |
650 | } | |
651 | ||
652 | int item_is_tag(char tag) | |
653 | { | |
654 | return (item_cur->node.tag == tag); | |
655 | } |