blob: a1a1354ba2382602b563c43ee30fb6c94ec100f5 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Sam Ravnborg98e5a152006-07-24 21:40:46 +020024struct dialog_info dlg;
Linus Torvalds1da177e2005-04-16 15:20:36 -070025
Sam Ravnborg98e5a152006-07-24 21:40:46 +020026static 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) \
60do { \
61 dlg.dialog.fg = (f); \
62 dlg.dialog.bg = (b); \
63 dlg.dialog.hl = (h); \
64} while (0)
65
66static 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
Sam Ravnborg45897212006-07-24 22:04:04 +020099static 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
Sam Ravnborg350b5b72006-07-24 22:19:51 +0200141static 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
Sam Ravnborg45897212006-07-24 22:04:04 +0200154/*
155 * Select color theme
156 */
157static int set_theme(const char *theme)
158{
159 int use_color = 1;
160 if (!theme)
Sam Ravnborg350b5b72006-07-24 22:19:51 +0200161 set_bluetitle_theme();
Sam Ravnborg45897212006-07-24 22:04:04 +0200162 else if (strcmp(theme, "classic") == 0)
163 set_classic_theme();
Sam Ravnborg350b5b72006-07-24 22:19:51 +0200164 else if (strcmp(theme, "bluetitle") == 0)
165 set_bluetitle_theme();
Sam Ravnborg45897212006-07-24 22:04:04 +0200166 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
Sam Ravnborg98e5a152006-07-24 21:40:46 +0200174static 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
186static 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}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218
Sam Ravnborgdec69da2005-11-19 21:56:20 +0100219/*
Sam Ravnborg98e5a152006-07-24 21:40:46 +0200220 * Setup for color display
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221 */
Sam Ravnborg45897212006-07-24 22:04:04 +0200222static void color_setup(const char *theme)
Sam Ravnborg98e5a152006-07-24 21:40:46 +0200223{
Roman Zippelc1543482006-11-25 11:09:32 -0800224 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
Sam Ravnborg98e5a152006-07-24 21:40:46 +0200231 set_mono_theme();
Sam Ravnborg98e5a152006-07-24 21:40:46 +0200232}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233
234/*
235 * Set window to attribute 'attr'
236 */
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100237void attr_clear(WINDOW * win, int height, int width, chtype attr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238{
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100239 int i, j;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100241 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);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248}
249
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100250void dialog_clear(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251{
Sam Ravnborg98e5a152006-07-24 21:40:46 +0200252 attr_clear(stdscr, LINES, COLS, dlg.screen.atr);
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100253 /* Display background title if it exists ... - SLH */
Sam Ravnborg98e5a152006-07-24 21:40:46 +0200254 if (dlg.backtitle != NULL) {
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100255 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256
Sam Ravnborg98e5a152006-07-24 21:40:46 +0200257 wattrset(stdscr, dlg.screen.atr);
258 mvwaddstr(stdscr, 0, 1, (char *)dlg.backtitle);
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100259 wmove(stdscr, 1, 1);
260 for (i = 1; i < COLS - 1; i++)
261 waddch(stdscr, ACS_HLINE);
262 }
263 wnoutrefresh(stdscr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264}
265
266/*
267 * Do some initialization for dialog
268 */
Sam Ravnborg2982de62006-07-27 22:10:27 +0200269void init_dialog(const char *backtitle)
270{
271 dlg.backtitle = backtitle;
272 color_setup(getenv("MENUCONFIG_COLOR"));
273}
274
275void reset_dialog(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276{
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100277 initscr(); /* Init curses */
278 keypad(stdscr, TRUE);
279 cbreak();
280 noecho();
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100281 dialog_clear();
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282}
283
284/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 * End using dialog functions.
286 */
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100287void end_dialog(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288{
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100289 endwin();
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290}
291
Sam Ravnborgfa7009d2005-11-19 23:38:06 +0100292/* Print the title of the dialog. Center the title and truncate
293 * tile if wider than dialog (- 2 chars).
294 **/
295void print_title(WINDOW *dialog, const char *title, int width)
296{
297 if (title) {
298 int tlen = MIN(width - 2, strlen(title));
Sam Ravnborg98e5a152006-07-24 21:40:46 +0200299 wattrset(dialog, dlg.title.atr);
Sam Ravnborgfa7009d2005-11-19 23:38:06 +0100300 mvwaddch(dialog, 0, (width - tlen) / 2 - 1, ' ');
301 mvwaddnstr(dialog, 0, (width - tlen)/2, title, tlen);
302 waddch(dialog, ' ');
303 }
304}
305
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306/*
307 * Print a string of text in a window, automatically wrap around to the
308 * next line if the string is too long to fit on one line. Newline
309 * characters '\n' are replaced by spaces. We start on a new line
310 * if there is no room for at least 4 nonblanks following a double-space.
311 */
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100312void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313{
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100314 int newl, cur_x, cur_y;
315 int i, prompt_len, room, wlen;
316 char tempstr[MAX_LEN + 1], *word, *sp, *sp2;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100318 strcpy(tempstr, prompt);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100320 prompt_len = strlen(tempstr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100322 /*
323 * Remove newlines
324 */
325 for (i = 0; i < prompt_len; i++) {
326 if (tempstr[i] == '\n')
327 tempstr[i] = ' ';
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328 }
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100329
330 if (prompt_len <= width - x * 2) { /* If prompt is short */
331 wmove(win, y, (width - prompt_len) / 2);
332 waddstr(win, tempstr);
333 } else {
334 cur_x = x;
335 cur_y = y;
336 newl = 1;
337 word = tempstr;
338 while (word && *word) {
Mike Frysingerf88d2052007-03-17 02:37:07 -0400339 sp = strchr(word, ' ');
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100340 if (sp)
341 *sp++ = 0;
342
343 /* Wrap to next line if either the word does not fit,
344 or it is the first word of a new sentence, and it is
345 short, and the next word does not fit. */
346 room = width - cur_x;
347 wlen = strlen(word);
348 if (wlen > room ||
349 (newl && wlen < 4 && sp
350 && wlen + 1 + strlen(sp) > room
Mike Frysingerf88d2052007-03-17 02:37:07 -0400351 && (!(sp2 = strchr(sp, ' '))
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100352 || wlen + 1 + (sp2 - sp) > room))) {
353 cur_y++;
354 cur_x = x;
355 }
356 wmove(win, cur_y, cur_x);
357 waddstr(win, word);
358 getyx(win, cur_y, cur_x);
359 cur_x++;
360 if (sp && *sp == ' ') {
361 cur_x++; /* double space */
362 while (*++sp == ' ') ;
363 newl = 1;
364 } else
365 newl = 0;
366 word = sp;
367 }
368 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369}
370
371/*
372 * Print a button
373 */
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100374void print_button(WINDOW * win, const char *label, int y, int x, int selected)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375{
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100376 int i, temp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100378 wmove(win, y, x);
Sam Ravnborg98e5a152006-07-24 21:40:46 +0200379 wattrset(win, selected ? dlg.button_active.atr
380 : dlg.button_inactive.atr);
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100381 waddstr(win, "<");
382 temp = strspn(label, " ");
383 label += temp;
Sam Ravnborg98e5a152006-07-24 21:40:46 +0200384 wattrset(win, selected ? dlg.button_label_active.atr
385 : dlg.button_label_inactive.atr);
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100386 for (i = 0; i < temp; i++)
387 waddch(win, ' ');
Sam Ravnborg98e5a152006-07-24 21:40:46 +0200388 wattrset(win, selected ? dlg.button_key_active.atr
389 : dlg.button_key_inactive.atr);
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100390 waddch(win, label[0]);
Sam Ravnborg98e5a152006-07-24 21:40:46 +0200391 wattrset(win, selected ? dlg.button_label_active.atr
392 : dlg.button_label_inactive.atr);
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100393 waddstr(win, (char *)label + 1);
Sam Ravnborg98e5a152006-07-24 21:40:46 +0200394 wattrset(win, selected ? dlg.button_active.atr
395 : dlg.button_inactive.atr);
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100396 waddstr(win, ">");
397 wmove(win, y, x + temp + 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398}
399
400/*
401 * Draw a rectangular box with line drawing characters
402 */
403void
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100404draw_box(WINDOW * win, int y, int x, int height, int width,
405 chtype box, chtype border)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406{
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100407 int i, j;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100409 wattrset(win, 0);
410 for (i = 0; i < height; i++) {
411 wmove(win, y + i, x);
412 for (j = 0; j < width; j++)
413 if (!i && !j)
414 waddch(win, border | ACS_ULCORNER);
415 else if (i == height - 1 && !j)
416 waddch(win, border | ACS_LLCORNER);
417 else if (!i && j == width - 1)
418 waddch(win, box | ACS_URCORNER);
419 else if (i == height - 1 && j == width - 1)
420 waddch(win, box | ACS_LRCORNER);
421 else if (!i)
422 waddch(win, border | ACS_HLINE);
423 else if (i == height - 1)
424 waddch(win, box | ACS_HLINE);
425 else if (!j)
426 waddch(win, border | ACS_VLINE);
427 else if (j == width - 1)
428 waddch(win, box | ACS_VLINE);
429 else
430 waddch(win, box | ' ');
431 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432}
433
434/*
435 * Draw shadows along the right and bottom edge to give a more 3D look
436 * to the boxes
437 */
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100438void draw_shadow(WINDOW * win, int y, int x, int height, int width)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439{
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100440 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100442 if (has_colors()) { /* Whether terminal supports color? */
Sam Ravnborg98e5a152006-07-24 21:40:46 +0200443 wattrset(win, dlg.shadow.atr);
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100444 wmove(win, y + height, x + 2);
445 for (i = 0; i < width; i++)
446 waddch(win, winch(win) & A_CHARTEXT);
447 for (i = y + 1; i < y + height + 1; i++) {
448 wmove(win, i, x + width);
449 waddch(win, winch(win) & A_CHARTEXT);
450 waddch(win, winch(win) & A_CHARTEXT);
451 }
452 wnoutrefresh(win);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454}
455
456/*
457 * Return the position of the first alphabetic character in a string.
458 */
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100459int first_alpha(const char *string, const char *exempt)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460{
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100461 int i, in_paren = 0, c;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462
463 for (i = 0; i < strlen(string); i++) {
464 c = tolower(string[i]);
465
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100466 if (strchr("<[(", c))
467 ++in_paren;
468 if (strchr(">])", c) && in_paren > 0)
469 --in_paren;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700470
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100471 if ((!in_paren) && isalpha(c) && strchr(exempt, c) == 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700472 return i;
473 }
474
475 return 0;
476}
Sam Ravnborg2982de62006-07-27 22:10:27 +0200477
Sam Ravnborgf3cbcdc2006-07-28 23:57:48 +0200478/*
479 * ncurses uses ESC to detect escaped char sequences. This resutl in
480 * a small timeout before ESC is actually delivered to the application.
481 * lxdialog suggest <ESC> <ESC> which is correctly translated to two
482 * times esc. But then we need to ignore the second esc to avoid stepping
483 * out one menu too much. Filter away all escaped key sequences since
484 * keypad(FALSE) turn off ncurses support for escape sequences - and thats
485 * needed to make notimeout() do as expected.
486 */
487int on_key_esc(WINDOW *win)
488{
489 int key;
490 int key2;
491 int key3;
492
493 nodelay(win, TRUE);
494 keypad(win, FALSE);
495 key = wgetch(win);
496 key2 = wgetch(win);
497 do {
498 key3 = wgetch(win);
499 } while (key3 != ERR);
500 nodelay(win, FALSE);
501 keypad(win, TRUE);
502 if (key == KEY_ESC && key2 == ERR)
503 return KEY_ESC;
504 else if (key != ERR && key != KEY_ESC && key2 == ERR)
505 ungetch(key);
506
507 return -1;
508}
509
Sam Ravnborgc8dc68a2006-07-29 22:48:57 +0200510/* redraw screen in new size */
511int on_key_resize(void)
512{
513 dialog_clear();
514 return KEY_RESIZE;
515}
Sam Ravnborgf3cbcdc2006-07-28 23:57:48 +0200516
Sam Ravnborg2982de62006-07-27 22:10:27 +0200517struct dialog_list *item_cur;
518struct dialog_list item_nil;
519struct dialog_list *item_head;
520
521void item_reset(void)
522{
523 struct dialog_list *p, *next;
524
525 for (p = item_head; p; p = next) {
526 next = p->next;
527 free(p);
528 }
529 item_head = NULL;
530 item_cur = &item_nil;
531}
532
533void item_make(const char *fmt, ...)
534{
535 va_list ap;
536 struct dialog_list *p = malloc(sizeof(*p));
537
538 if (item_head)
539 item_cur->next = p;
540 else
541 item_head = p;
542 item_cur = p;
543 memset(p, 0, sizeof(*p));
544
545 va_start(ap, fmt);
546 vsnprintf(item_cur->node.str, sizeof(item_cur->node.str), fmt, ap);
547 va_end(ap);
548}
549
550void item_add_str(const char *fmt, ...)
551{
552 va_list ap;
553 size_t avail;
554
555 avail = sizeof(item_cur->node.str) - strlen(item_cur->node.str);
556
557 va_start(ap, fmt);
558 vsnprintf(item_cur->node.str + strlen(item_cur->node.str),
559 avail, fmt, ap);
560 item_cur->node.str[sizeof(item_cur->node.str) - 1] = '\0';
561 va_end(ap);
562}
563
564void item_set_tag(char tag)
565{
566 item_cur->node.tag = tag;
567}
568void item_set_data(void *ptr)
569{
570 item_cur->node.data = ptr;
571}
572
573void item_set_selected(int val)
574{
575 item_cur->node.selected = val;
576}
577
578int item_activate_selected(void)
579{
580 item_foreach()
581 if (item_is_selected())
582 return 1;
583 return 0;
584}
585
586void *item_data(void)
587{
588 return item_cur->node.data;
589}
590
591char item_tag(void)
592{
593 return item_cur->node.tag;
594}
595
596int item_count(void)
597{
598 int n = 0;
599 struct dialog_list *p;
600
601 for (p = item_head; p; p = p->next)
602 n++;
603 return n;
604}
605
606void item_set(int n)
607{
608 int i = 0;
609 item_foreach()
610 if (i++ == n)
611 return;
612}
613
614int item_n(void)
615{
616 int n = 0;
617 struct dialog_list *p;
618
619 for (p = item_head; p; p = p->next) {
620 if (p == item_cur)
621 return n;
622 n++;
623 }
624 return 0;
625}
626
627const char *item_str(void)
628{
629 return item_cur->node.str;
630}
631
632int item_is_selected(void)
633{
634 return (item_cur->node.selected != 0);
635}
636
637int item_is_tag(char tag)
638{
639 return (item_cur->node.tag == tag);
640}