summaryrefslogtreecommitdiffstats
path: root/scripts/kconfig/lxdialog/util.c
blob: 0b3118df50df0ca37cfcce172c8d8386916c51d2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
/*
 *  util.c
 *
 *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
 *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License
 *  as published by the Free Software Foundation; either version 2
 *  of the License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include "dialog.h"

struct dialog_info dlg;

static void set_mono_theme(void)
{
	dlg.screen.atr = A_NORMAL;
	dlg.shadow.atr = A_NORMAL;
	dlg.dialog.atr = A_NORMAL;
	dlg.title.atr = A_BOLD;
	dlg.border.atr = A_NORMAL;
	dlg.button_active.atr = A_REVERSE;
	dlg.button_inactive.atr = A_DIM;
	dlg.button_key_active.atr = A_REVERSE;
	dlg.button_key_inactive.atr = A_BOLD;
	dlg.button_label_active.atr = A_REVERSE;
	dlg.button_label_inactive.atr = A_NORMAL;
	dlg.inputbox.atr = A_NORMAL;
	dlg.inputbox_border.atr = A_NORMAL;
	dlg.searchbox.atr = A_NORMAL;
	dlg.searchbox_title.atr = A_BOLD;
	dlg.searchbox_border.atr = A_NORMAL;
	dlg.position_indicator.atr = A_BOLD;
	dlg.menubox.atr = A_NORMAL;
	dlg.menubox_border.atr = A_NORMAL;
	dlg.item.atr = A_NORMAL;
	dlg.item_selected.atr = A_REVERSE;
	dlg.tag.atr = A_BOLD;
	dlg.tag_selected.atr = A_REVERSE;
	dlg.tag_key.atr = A_BOLD;
	dlg.tag_key_selected.atr = A_REVERSE;
	dlg.check.atr = A_BOLD;
	dlg.check_selected.atr = A_REVERSE;
	dlg.uarrow.atr = A_BOLD;
	dlg.darrow.atr = A_BOLD;
}

#define DLG_COLOR(dialog, f, b, h) \
do {                               \
	dlg.dialog.fg = (f);       \
	dlg.dialog.bg = (b);       \
	dlg.dialog.hl = (h);       \
} while (0)

static void set_classic_theme(void)
{
	DLG_COLOR(screen,                COLOR_CYAN,   COLOR_BLUE,   true);
	DLG_COLOR(shadow,                COLOR_BLACK,  COLOR_BLACK,  true);
	DLG_COLOR(dialog,                COLOR_BLACK,  COLOR_WHITE,  false);
	DLG_COLOR(title,                 COLOR_YELLOW, COLOR_WHITE,  true);
	DLG_COLOR(border,                COLOR_WHITE,  COLOR_WHITE,  true);
	DLG_COLOR(button_active,         COLOR_WHITE,  COLOR_BLUE,   true);
	DLG_COLOR(button_inactive,       COLOR_BLACK,  COLOR_WHITE,  false);
	DLG_COLOR(button_key_active,     COLOR_WHITE,  COLOR_BLUE,   true);
	DLG_COLOR(button_key_inactive,   COLOR_RED,    COLOR_WHITE,  false);
	DLG_COLOR(button_label_active,   COLOR_YELLOW, COLOR_BLUE,   true);
	DLG_COLOR(button_label_inactive, COLOR_BLACK,  COLOR_WHITE,  true);
	DLG_COLOR(inputbox,              COLOR_BLACK,  COLOR_WHITE,  false);
	DLG_COLOR(inputbox_border,       COLOR_BLACK,  COLOR_WHITE,  false);
	DLG_COLOR(searchbox,             COLOR_BLACK,  COLOR_WHITE,  false);
	DLG_COLOR(searchbox_title,       COLOR_YELLOW, COLOR_WHITE,  true);
	DLG_COLOR(searchbox_border,      COLOR_WHITE,  COLOR_WHITE,  true);
	DLG_COLOR(position_indicator,    COLOR_YELLOW, COLOR_WHITE,  true);
	DLG_COLOR(menubox,               COLOR_BLACK,  COLOR_WHITE,  false);
	DLG_COLOR(menubox_border,        COLOR_WHITE,  COLOR_WHITE,  true);
	DLG_COLOR(item,                  COLOR_BLACK,  COLOR_WHITE,  false);
	DLG_COLOR(item_selected,         COLOR_WHITE,  COLOR_BLUE,   true);
	DLG_COLOR(tag,                   COLOR_YELLOW, COLOR_WHITE,  true);
	DLG_COLOR(tag_selected,          COLOR_YELLOW, COLOR_BLUE,   true);
	DLG_COLOR(tag_key,               COLOR_YELLOW, COLOR_WHITE,  true);
	DLG_COLOR(tag_key_selected,      COLOR_YELLOW, COLOR_BLUE,   true);
	DLG_COLOR(check,                 COLOR_BLACK,  COLOR_WHITE,  false);
	DLG_COLOR(check_selected,        COLOR_WHITE,  COLOR_BLUE,   true);
	DLG_COLOR(uarrow,                COLOR_GREEN,  COLOR_WHITE,  true);
	DLG_COLOR(darrow,                COLOR_GREEN,  COLOR_WHITE,  true);
}

static void set_blackbg_theme(void)
{
	DLG_COLOR(screen, COLOR_RED,   COLOR_BLACK, true);
	DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, false);
	DLG_COLOR(dialog, COLOR_WHITE, COLOR_BLACK, false);
	DLG_COLOR(title,  COLOR_RED,   COLOR_BLACK, false);
	DLG_COLOR(border, COLOR_BLACK, COLOR_BLACK, true);

	DLG_COLOR(button_active,         COLOR_YELLOW, COLOR_RED,   false);
	DLG_COLOR(button_inactive,       COLOR_YELLOW, COLOR_BLACK, false);
	DLG_COLOR(button_key_active,     COLOR_YELLOW, COLOR_RED,   true);
	DLG_COLOR(button_key_inactive,   COLOR_RED,    COLOR_BLACK, false);
	DLG_COLOR(button_label_active,   COLOR_WHITE,  COLOR_RED,   false);
	DLG_COLOR(button_label_inactive, COLOR_BLACK,  COLOR_BLACK, true);

	DLG_COLOR(inputbox,         COLOR_YELLOW, COLOR_BLACK, false);
	DLG_COLOR(inputbox_border,  COLOR_YELLOW, COLOR_BLACK, false);

	DLG_COLOR(searchbox,        COLOR_YELLOW, COLOR_BLACK, false);
	DLG_COLOR(searchbox_title,  COLOR_YELLOW, COLOR_BLACK, true);
	DLG_COLOR(searchbox_border, COLOR_BLACK,  COLOR_BLACK, true);

	DLG_COLOR(position_indicator, COLOR_RED, COLOR_BLACK,  false);

	DLG_COLOR(menubox,          COLOR_YELLOW, COLOR_BLACK, false);
	DLG_COLOR(menubox_border,   COLOR_BLACK,  COLOR_BLACK, true);

	DLG_COLOR(item,             COLOR_WHITE, COLOR_BLACK, false);
	DLG_COLOR(item_selected,    COLOR_WHITE, COLOR_RED,   false);

	DLG_COLOR(tag,              COLOR_RED,    COLOR_BLACK, false);
	DLG_COLOR(tag_selected,     COLOR_YELLOW, COLOR_RED,   true);
	DLG_COLOR(tag_key,          COLOR_RED,    COLOR_BLACK, false);
	DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_RED,   true);

	DLG_COLOR(check,            COLOR_YELLOW, COLOR_BLACK, false);
	DLG_COLOR(check_selected,   COLOR_YELLOW, COLOR_RED,   true);

	DLG_COLOR(uarrow, COLOR_RED, COLOR_BLACK, false);
	DLG_COLOR(darrow, COLOR_RED, COLOR_BLACK, false);
}

static void set_bluetitle_theme(void)
{
	set_classic_theme();
	DLG_COLOR(title,               COLOR_BLUE,   COLOR_WHITE, true);
	DLG_COLOR(button_key_active,   COLOR_YELLOW, COLOR_BLUE,  true);
	DLG_COLOR(button_label_active, COLOR_WHITE,  COLOR_BLUE,  true);
	DLG_COLOR(searchbox_title,     COLOR_BLUE,   COLOR_WHITE, true);
	DLG_COLOR(position_indicator,  COLOR_BLUE,   COLOR_WHITE, true);
	DLG_COLOR(tag,                 COLOR_BLUE,   COLOR_WHITE, true);
	DLG_COLOR(tag_key,             COLOR_BLUE,   COLOR_WHITE, true);

}

/*
 * Select color theme
 */
static int set_theme(const char *theme)
{
	int use_color = 1;
	if (!theme)
		set_bluetitle_theme();
	else if (strcmp(theme, "classic") == 0)
		set_classic_theme();
	else if (strcmp(theme, "bluetitle") == 0)
		set_bluetitle_theme();
	else if (strcmp(theme, "blackbg") == 0)
		set_blackbg_theme();
	else if (strcmp(theme, "mono") == 0)
		use_color = 0;

	return use_color;
}

static void init_one_color(struct dialog_color *color)
{
	static int pair = 0;

	pair++;
	init_pair(pair, color->fg, color->bg);
	if (color->hl)
		color->atr = A_BOLD | COLOR_PAIR(pair);
	else
		color->atr = COLOR_PAIR(pair);
}

static void init_dialog_colors(void)
{
	init_one_color(&dlg.screen);
	init_one_color(&dlg.shadow);
	init_one_color(&dlg.dialog);
	init_one_color(&dlg.title);
	init_one_color(&dlg.border);
	init_one_color(&dlg.button_active);
	init_one_color(&dlg.button_inactive);
	init_one_color(&dlg.button_key_active);
	init_one_color(&dlg.button_key_inactive);
	init_one_color(&dlg.button_label_active);
	init_one_color(&dlg.button_label_inactive);
	init_one_color(&dlg.inputbox);
	init_one_color(&dlg.inputbox_border);
	init_one_color(&dlg.searchbox);
	init_one_color(&dlg.searchbox_title);
	init_one_color(&dlg.searchbox_border);
	init_one_color(&dlg.position_indicator);
	init_one_color(&dlg.menubox);
	init_one_color(&dlg.menubox_border);
	init_one_color(&dlg.item);
	init_one_color(&dlg.item_selected);
	init_one_color(&dlg.tag);
	init_one_color(&dlg.tag_selected);
	init_one_color(&dlg.tag_key);
	init_one_color(&dlg.tag_key_selected);
	init_one_color(&dlg.check);
	init_one_color(&dlg.check_selected);
	init_one_color(&dlg.uarrow);
	init_one_color(&dlg.darrow);
}

/*
 * Setup for color display
 */
static void color_setup(const char *theme)
{
	if (set_theme(theme)) {
		if (has_colors()) {	/* Terminal supports color? */
			start_color();
			init_dialog_colors();
		}
	}
	else
	{
		set_mono_theme();
	}
}

/*
 * Set window to attribute 'attr'
 */
void attr_clear(WINDOW * win, int height, int width, chtype attr)
{
	int i, j;

	wattrset(win, attr);
	for (i = 0; i < height; i++) {
		wmove(win, i, 0);
		for (j = 0; j < width; j++)
			waddch(win, ' ');
	}
	touchwin(win);
}

void dialog_clear(void)
{
	attr_clear(stdscr, LINES, COLS, dlg.screen.atr);
	/* Display background title if it exists ... - SLH */
	if (dlg.backtitle != NULL) {
		int i;

		wattrset(stdscr, dlg.screen.atr);
		mvwaddstr(stdscr, 0, 1, (char *)dlg.backtitle);
		wmove(stdscr, 1, 1);
		for (i = 1; i < COLS - 1; i++)
			waddch(stdscr, ACS_HLINE);
	}
	wnoutrefresh(stdscr);
}

/*
 * Do some initialization for dialog
 */
void init_dialog(const char *backtitle)
{
	dlg.backtitle = backtitle;
	color_setup(getenv("MENUCONFIG_COLOR"));
}

void reset_dialog(void)
{
	initscr();		/* Init curses */
	keypad(stdscr, TRUE);
	cbreak();
	noecho();
	dialog_clear();
}

/*
 * End using dialog functions.
 */
void end_dialog(void)
{
	endwin();
}

/* Print the title of the dialog. Center the title and truncate
 * tile if wider than dialog (- 2 chars).
 **/
void print_title(WINDOW *dialog, const char *title, int width)
{
	if (title) {
		int tlen = MIN(width - 2, strlen(title));
		wattrset(dialog, dlg.title.atr);
		mvwaddch(dialog, 0, (width - tlen) / 2 - 1, ' ');
		mvwaddnstr(dialog, 0, (width - tlen)/2, title, tlen);
		waddch(dialog, ' ');
	}
}

/*
 * Print a string of text in a window, automatically wrap around to the
 * next line if the string is too long to fit on one line. Newline
 * characters '\n' are replaced by spaces.  We start on a new line
 * if there is no room for at least 4 nonblanks following a double-space.
 */
void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x)
{
	int newl, cur_x, cur_y;
	int i, prompt_len, room, wlen;
	char tempstr[MAX_LEN + 1], *word, *sp, *sp2;

	strcpy(tempstr, prompt);

	prompt_len = strlen(tempstr);

	/*
	 * Remove newlines
	 */
	for (i = 0; i < prompt_len; i++) {
		if (tempstr[i] == '\n')
			tempstr[i] = ' ';
	}

	if (prompt_len <= width - x * 2) {	/* If prompt is short */
		wmove(win, y, (width - prompt_len) / 2);
		waddstr(win, tempstr);
	} else {
		cur_x = x;
		cur_y = y;
		newl = 1;
		word = tempstr;
		while (word && *word) {
			sp = index(word, ' ');
			if (sp)
				*sp++ = 0;

			/* Wrap to next line if either the word does not fit,
			   or it is the first word of a new sentence, and it is
			   short, and the next word does not fit. */
			room = width - cur_x;
			wlen = strlen(word);
			if (wlen > room ||
			    (newl && wlen < 4 && sp
			     && wlen + 1 + strlen(sp) > room
			     && (!(sp2 = index(sp, ' '))
				 || wlen + 1 + (sp2 - sp) > room))) {
				cur_y++;
				cur_x = x;
			}
			wmove(win, cur_y, cur_x);
			waddstr(win, word);
			getyx(win, cur_y, cur_x);
			cur_x++;
			if (sp && *sp == ' ') {
				cur_x++;	/* double space */
				while (*++sp == ' ') ;
				newl = 1;
			} else
				newl = 0;
			word = sp;
		}
	}
}

/*
 * Print a button
 */
void print_button(WINDOW * win, const char *label, int y, int x, int selected)
{
	int i, temp;

	wmove(win, y, x);
	wattrset(win, selected ? dlg.button_active.atr
		 : dlg.button_inactive.atr);
	waddstr(win, "<");
	temp = strspn(label, " ");
	label += temp;
	wattrset(win, selected ? dlg.button_label_active.atr
		 : dlg.button_label_inactive.atr);
	for (i = 0; i < temp; i++)
		waddch(win, ' ');
	wattrset(win, selected ? dlg.button_key_active.atr
		 : dlg.button_key_inactive.atr);
	waddch(win, label[0]);
	wattrset(win, selected ? dlg.button_label_active.atr
		 : dlg.button_label_inactive.atr);
	waddstr(win, (char *)label + 1);
	wattrset(win, selected ? dlg.button_active.atr
		 : dlg.button_inactive.atr);
	waddstr(win, ">");
	wmove(win, y, x + temp + 1);
}

/*
 * Draw a rectangular box with line drawing characters
 */
void
draw_box(WINDOW * win, int y, int x, int height, int width,
	 chtype box, chtype border)
{
	int i, j;

	wattrset(win, 0);
	for (i = 0; i < height; i++) {
		wmove(win, y + i, x);
		for (j = 0; j < width; j++)
			if (!i && !j)
				waddch(win, border | ACS_ULCORNER);
			else if (i == height - 1 && !j)
				waddch(win, border | ACS_LLCORNER);
			else if (!i && j == width - 1)
				waddch(win, box | ACS_URCORNER);
			else if (i == height - 1 && j == width - 1)
				waddch(win, box | ACS_LRCORNER);
			else if (!i)
				waddch(win, border | ACS_HLINE);
			else if (i == height - 1)
				waddch(win, box | ACS_HLINE);
			else if (!j)
				waddch(win, border | ACS_VLINE);
			else if (j == width - 1)
				waddch(win, box | ACS_VLINE);
			else
				waddch(win, box | ' ');
	}
}

/*
 * Draw shadows along the right and bottom edge to give a more 3D look
 * to the boxes
 */
void draw_shadow(WINDOW * win, int y, int x, int height, int width)
{
	int i;

	if (has_colors()) {	/* Whether terminal supports color? */
		wattrset(win, dlg.shadow.atr);
		wmove(win, y + height, x + 2);
		for (i = 0; i < width; i++)
			waddch(win, winch(win) & A_CHARTEXT);
		for (i = y + 1; i < y + height + 1; i++) {
			wmove(win, i, x + width);
			waddch(win, winch(win) & A_CHARTEXT);
			waddch(win, winch(win) & A_CHARTEXT);
		}
		wnoutrefresh(win);
	}
}

/*
 *  Return the position of the first alphabetic character in a string.
 */
int first_alpha(const char *string, const char *exempt)
{
	int i, in_paren = 0, c;

	for (i = 0; i < strlen(string); i++) {
		c = tolower(string[i]);

		if (strchr("<[(", c))
			++in_paren;
		if (strchr(">])", c) && in_paren > 0)
			--in_paren;

		if ((!in_paren) && isalpha(c) && strchr(exempt, c) == 0)
			return i;
	}

	return 0;
}

struct dialog_list *item_cur;
struct dialog_list item_nil;
struct dialog_list *item_head;

void item_reset(void)
{
	struct dialog_list *p, *next;

	for (p = item_head; p; p = next) {
		next = p->next;
		free(p);
	}
	item_head = NULL;
	item_cur = &item_nil;
}

void item_make(const char *fmt, ...)
{
	va_list ap;
	struct dialog_list *p = malloc(sizeof(*p));

	if (item_head)
		item_cur->next = p;
	else
		item_head = p;
	item_cur = p;
	memset(p, 0, sizeof(*p));

	va_start(ap, fmt);
	vsnprintf(item_cur->node.str, sizeof(item_cur->node.str), fmt, ap);
	va_end(ap);
}

void item_add_str(const char *fmt, ...)
{
	va_list ap;
        size_t avail;

	avail = sizeof(item_cur->node.str) - strlen(item_cur->node.str);

	va_start(ap, fmt);
	vsnprintf(item_cur->node.str + strlen(item_cur->node.str),
		  avail, fmt, ap);
	item_cur->node.str[sizeof(item_cur->node.str) - 1] = '\0';
	va_end(ap);
}

void item_set_tag(char tag)
{
	item_cur->node.tag = tag;
}
void item_set_data(void *ptr)
{
	item_cur->node.data = ptr;
}

void item_set_selected(int val)
{
	item_cur->node.selected = val;
}

int item_activate_selected(void)
{
	item_foreach()
		if (item_is_selected())
			return 1;
	return 0;
}

void *item_data(void)
{
	return item_cur->node.data;
}

char item_tag(void)
{
	return item_cur->node.tag;
}

int item_count(void)
{
	int n = 0;
	struct dialog_list *p;

	for (p = item_head; p; p = p->next)
		n++;
	return n;
}

void item_set(int n)
{
	int i = 0;
	item_foreach()
		if (i++ == n)
			return;
}

int item_n(void)
{
	int n = 0;
	struct dialog_list *p;

	for (p = item_head; p; p = p->next) {
		if (p == item_cur)
			return n;
		n++;
	}
	return 0;
}

const char *item_str(void)
{
	return item_cur->node.str;
}

int item_is_selected(void)
{
	return (item_cur->node.selected != 0);
}

int item_is_tag(char tag)
{
	return (item_cur->node.tag == tag);
}
OpenPOWER on IntegriCloud