diff -r 000000000000 -r eeea35fbf182 kconfig/lxdialog/util.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kconfig/lxdialog/util.c	Sat Feb 24 11:00:05 2007 +0000
@@ -0,0 +1,642 @@
+/*
+ *  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;
+}
+
+/*
+ * ncurses uses ESC to detect escaped char sequences. This resutl in
+ * a small timeout before ESC is actually delivered to the application.
+ * lxdialog suggest <ESC> <ESC> which is correctly translated to two
+ * times esc. But then we need to ignore the second esc to avoid stepping
+ * out one menu too much. Filter away all escaped key sequences since
+ * keypad(FALSE) turn off ncurses support for escape sequences - and thats
+ * needed to make notimeout() do as expected.
+ */
+int on_key_esc(WINDOW *win)
+{
+	int key;
+	int key2;
+	int key3;
+
+	nodelay(win, TRUE);
+	keypad(win, FALSE);
+	key = wgetch(win);
+	key2 = wgetch(win);
+	do {
+		key3 = wgetch(win);
+	} while (key3 != ERR);
+	nodelay(win, FALSE);
+	keypad(win, TRUE);
+	if (key == KEY_ESC && key2 == ERR)
+		return KEY_ESC;
+	else if (key != ERR && key != KEY_ESC && key2 == ERR)
+		ungetch(key);
+
+	return -1;
+}
+
+/* redraw screen in new size */
+int on_key_resize(void)
+{
+	dialog_clear();
+	return KEY_RESIZE;
+}
+
+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);
+}