[mirror_ubuntu-artful-kernel.git] / scripts / kconfig / lxdialog / util.c

/*
 *  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 <stdarg.h>

#include "dialog.h"

/* Needed in signal handler in mconf.c */
int saved_x, saved_y;

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)
{
	int use_color;

	use_color = set_theme(theme);
	if (use_color && has_colors()) {
		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, len = 0, skip = 0;
		struct subtitle_list *pos;

		wattrset(stdscr, dlg.screen.atr);
		mvwaddstr(stdscr, 0, 1, (char *)dlg.backtitle);

		for (pos = dlg.subtitles; pos != NULL; pos = pos->next) {
			/* 3 is for the arrow and spaces */
			len += strlen(pos->text) + 3;
		}

		wmove(stdscr, 1, 1);
		if (len > COLS - 2) {
			const char *ellipsis = "[...] ";
			waddstr(stdscr, ellipsis);
			skip = len - (COLS - 2 - strlen(ellipsis));
		}

		for (pos = dlg.subtitles; pos != NULL; pos = pos->next) {
			if (skip == 0)
				waddch(stdscr, ACS_RARROW);
			else
				skip--;

			if (skip == 0)
				waddch(stdscr, ' ');
			else
				skip--;

			if (skip < strlen(pos->text)) {
				waddstr(stdscr, pos->text + skip);
				skip = 0;
			} else
				skip -= strlen(pos->text);

			if (skip == 0)
				waddch(stdscr, ' ');
			else
				skip--;
		}

		for (i = len + 1; i < COLS - 1; i++)
			waddch(stdscr, ACS_HLINE);
	}
	wnoutrefresh(stdscr);
}

/*
 * Do some initialization for dialog
 */
int init_dialog(const char *backtitle)
{
	int height, width;

	initscr();		/* Init curses */

	/* Get current cursor position for signal handler in mconf.c */
	getyx(stdscr, saved_y, saved_x);

	getmaxyx(stdscr, height, width);
	if (height < 19 || width < 80) {
		endwin();
		return -ERRDISPLAYTOOSMALL;
	}

	dlg.backtitle = backtitle;
	color_setup(getenv("MENUCONFIG_COLOR"));

	keypad(stdscr, TRUE);
	cbreak();
	noecho();
	dialog_clear();

	return 0;
}

void set_dialog_backtitle(const char *backtitle)
{
	dlg.backtitle = backtitle;
}

void set_dialog_subtitles(struct subtitle_list *subtitles)
{
	dlg.subtitles = subtitles;
}

/*
 * End using dialog functions.
 */
void end_dialog(int x, int y)
{
	/* move cursor back to original position */
	move(y, x);
	refresh();
	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 = strchr(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 = strchr(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);
}
Commit	Line	Data
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
668cdedf AL	22	#include <stdarg.h>
668cdedf AL	23
1da177e4 LT	24	#include "dialog.h"
1da177e4 LT	25
3eb95c84 DG	26	/* Needed in signal handler in mconf.c */
	27	int saved_x, saved_y;
	28
98e5a157	29	struct dialog_info dlg;
1da177e4	30
98e5a157 SR	31	static void set_mono_theme(void)
	32	{
	33	dlg.screen.atr = A_NORMAL;
	34	dlg.shadow.atr = A_NORMAL;
	35	dlg.dialog.atr = A_NORMAL;
	36	dlg.title.atr = A_BOLD;
	37	dlg.border.atr = A_NORMAL;
	38	dlg.button_active.atr = A_REVERSE;
	39	dlg.button_inactive.atr = A_DIM;
	40	dlg.button_key_active.atr = A_REVERSE;
	41	dlg.button_key_inactive.atr = A_BOLD;
	42	dlg.button_label_active.atr = A_REVERSE;
	43	dlg.button_label_inactive.atr = A_NORMAL;
	44	dlg.inputbox.atr = A_NORMAL;
	45	dlg.inputbox_border.atr = A_NORMAL;
	46	dlg.searchbox.atr = A_NORMAL;
	47	dlg.searchbox_title.atr = A_BOLD;
	48	dlg.searchbox_border.atr = A_NORMAL;
	49	dlg.position_indicator.atr = A_BOLD;
	50	dlg.menubox.atr = A_NORMAL;
	51	dlg.menubox_border.atr = A_NORMAL;
	52	dlg.item.atr = A_NORMAL;
	53	dlg.item_selected.atr = A_REVERSE;
	54	dlg.tag.atr = A_BOLD;
	55	dlg.tag_selected.atr = A_REVERSE;
	56	dlg.tag_key.atr = A_BOLD;
	57	dlg.tag_key_selected.atr = A_REVERSE;
	58	dlg.check.atr = A_BOLD;
	59	dlg.check_selected.atr = A_REVERSE;
	60	dlg.uarrow.atr = A_BOLD;
	61	dlg.darrow.atr = A_BOLD;
	62	}
1da177e4	63
98e5a157 SR	64	#define DLG_COLOR(dialog, f, b, h) \
	65	do { \
	66	dlg.dialog.fg = (f); \
	67	dlg.dialog.bg = (b); \
	68	dlg.dialog.hl = (h); \
	69	} while (0)
	70
	71	static void set_classic_theme(void)
	72	{
	73	DLG_COLOR(screen, COLOR_CYAN, COLOR_BLUE, true);
	74	DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, true);
	75	DLG_COLOR(dialog, COLOR_BLACK, COLOR_WHITE, false);
	76	DLG_COLOR(title, COLOR_YELLOW, COLOR_WHITE, true);
	77	DLG_COLOR(border, COLOR_WHITE, COLOR_WHITE, true);
	78	DLG_COLOR(button_active, COLOR_WHITE, COLOR_BLUE, true);
	79	DLG_COLOR(button_inactive, COLOR_BLACK, COLOR_WHITE, false);
	80	DLG_COLOR(button_key_active, COLOR_WHITE, COLOR_BLUE, true);
	81	DLG_COLOR(button_key_inactive, COLOR_RED, COLOR_WHITE, false);
	82	DLG_COLOR(button_label_active, COLOR_YELLOW, COLOR_BLUE, true);
	83	DLG_COLOR(button_label_inactive, COLOR_BLACK, COLOR_WHITE, true);
	84	DLG_COLOR(inputbox, COLOR_BLACK, COLOR_WHITE, false);
	85	DLG_COLOR(inputbox_border, COLOR_BLACK, COLOR_WHITE, false);
	86	DLG_COLOR(searchbox, COLOR_BLACK, COLOR_WHITE, false);
	87	DLG_COLOR(searchbox_title, COLOR_YELLOW, COLOR_WHITE, true);
	88	DLG_COLOR(searchbox_border, COLOR_WHITE, COLOR_WHITE, true);
	89	DLG_COLOR(position_indicator, COLOR_YELLOW, COLOR_WHITE, true);
	90	DLG_COLOR(menubox, COLOR_BLACK, COLOR_WHITE, false);
	91	DLG_COLOR(menubox_border, COLOR_WHITE, COLOR_WHITE, true);
	92	DLG_COLOR(item, COLOR_BLACK, COLOR_WHITE, false);
	93	DLG_COLOR(item_selected, COLOR_WHITE, COLOR_BLUE, true);
	94	DLG_COLOR(tag, COLOR_YELLOW, COLOR_WHITE, true);
	95	DLG_COLOR(tag_selected, COLOR_YELLOW, COLOR_BLUE, true);
	96	DLG_COLOR(tag_key, COLOR_YELLOW, COLOR_WHITE, true);
	97	DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_BLUE, true);
	98	DLG_COLOR(check, COLOR_BLACK, COLOR_WHITE, false);
	99	DLG_COLOR(check_selected, COLOR_WHITE, COLOR_BLUE, true);
	100	DLG_COLOR(uarrow, COLOR_GREEN, COLOR_WHITE, true);
	101	DLG_COLOR(darrow, COLOR_GREEN, COLOR_WHITE, true);
	102	}
	103
45897213 SR	104	static void set_blackbg_theme(void)
	105	{
	106	DLG_COLOR(screen, COLOR_RED, COLOR_BLACK, true);
	107	DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, false);
	108	DLG_COLOR(dialog, COLOR_WHITE, COLOR_BLACK, false);
	109	DLG_COLOR(title, COLOR_RED, COLOR_BLACK, false);
	110	DLG_COLOR(border, COLOR_BLACK, COLOR_BLACK, true);
	111
	112	DLG_COLOR(button_active, COLOR_YELLOW, COLOR_RED, false);
	113	DLG_COLOR(button_inactive, COLOR_YELLOW, COLOR_BLACK, false);
	114	DLG_COLOR(button_key_active, COLOR_YELLOW, COLOR_RED, true);
	115	DLG_COLOR(button_key_inactive, COLOR_RED, COLOR_BLACK, false);
	116	DLG_COLOR(button_label_active, COLOR_WHITE, COLOR_RED, false);
	117	DLG_COLOR(button_label_inactive, COLOR_BLACK, COLOR_BLACK, true);
	118
	119	DLG_COLOR(inputbox, COLOR_YELLOW, COLOR_BLACK, false);
	120	DLG_COLOR(inputbox_border, COLOR_YELLOW, COLOR_BLACK, false);
	121
	122	DLG_COLOR(searchbox, COLOR_YELLOW, COLOR_BLACK, false);
	123	DLG_COLOR(searchbox_title, COLOR_YELLOW, COLOR_BLACK, true);
	124	DLG_COLOR(searchbox_border, COLOR_BLACK, COLOR_BLACK, true);
	125
	126	DLG_COLOR(position_indicator, COLOR_RED, COLOR_BLACK, false);
	127
	128	DLG_COLOR(menubox, COLOR_YELLOW, COLOR_BLACK, false);
	129	DLG_COLOR(menubox_border, COLOR_BLACK, COLOR_BLACK, true);
	130
	131	DLG_COLOR(item, COLOR_WHITE, COLOR_BLACK, false);
	132	DLG_COLOR(item_selected, COLOR_WHITE, COLOR_RED, false);
	133
	134	DLG_COLOR(tag, COLOR_RED, COLOR_BLACK, false);
	135	DLG_COLOR(tag_selected, COLOR_YELLOW, COLOR_RED, true);
	136	DLG_COLOR(tag_key, COLOR_RED, COLOR_BLACK, false);
	137	DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_RED, true);
	138
	139	DLG_COLOR(check, COLOR_YELLOW, COLOR_BLACK, false);
	140	DLG_COLOR(check_selected, COLOR_YELLOW, COLOR_RED, true);
	141
	142	DLG_COLOR(uarrow, COLOR_RED, COLOR_BLACK, false);
	143	DLG_COLOR(darrow, COLOR_RED, COLOR_BLACK, false);
	144	}
	145
350b5b76 SR	146	static void set_bluetitle_theme(void)
	147	{
	148	set_classic_theme();
	149	DLG_COLOR(title, COLOR_BLUE, COLOR_WHITE, true);
	150	DLG_COLOR(button_key_active, COLOR_YELLOW, COLOR_BLUE, true);
	151	DLG_COLOR(button_label_active, COLOR_WHITE, COLOR_BLUE, true);
	152	DLG_COLOR(searchbox_title, COLOR_BLUE, COLOR_WHITE, true);
	153	DLG_COLOR(position_indicator, COLOR_BLUE, COLOR_WHITE, true);
	154	DLG_COLOR(tag, COLOR_BLUE, COLOR_WHITE, true);
	155	DLG_COLOR(tag_key, COLOR_BLUE, COLOR_WHITE, true);
	156
	157	}
	158
45897213 SR	159	/*
	160	* Select color theme
	161	*/
	162	static int set_theme(const char *theme)
	163	{
	164	int use_color = 1;
	165	if (!theme)
350b5b76	166	set_bluetitle_theme();
45897213 SR	167	else if (strcmp(theme, "classic") == 0)
45897213 SR	168	set_classic_theme();
350b5b76 SR	169	else if (strcmp(theme, "bluetitle") == 0)
350b5b76 SR	170	set_bluetitle_theme();
45897213 SR	171	else if (strcmp(theme, "blackbg") == 0)
	172	set_blackbg_theme();
	173	else if (strcmp(theme, "mono") == 0)
	174	use_color = 0;
	175
	176	return use_color;
	177	}
	178
98e5a157 SR	179	static void init_one_color(struct dialog_color *color)
	180	{
	181	static int pair = 0;
	182
	183	pair++;
	184	init_pair(pair, color->fg, color->bg);
	185	if (color->hl)
	186	color->atr = A_BOLD \| COLOR_PAIR(pair);
	187	else
	188	color->atr = COLOR_PAIR(pair);
	189	}
	190
	191	static void init_dialog_colors(void)
	192	{
	193	init_one_color(&dlg.screen);
	194	init_one_color(&dlg.shadow);
	195	init_one_color(&dlg.dialog);
	196	init_one_color(&dlg.title);
	197	init_one_color(&dlg.border);
	198	init_one_color(&dlg.button_active);
	199	init_one_color(&dlg.button_inactive);
	200	init_one_color(&dlg.button_key_active);
	201	init_one_color(&dlg.button_key_inactive);
	202	init_one_color(&dlg.button_label_active);
	203	init_one_color(&dlg.button_label_inactive);
	204	init_one_color(&dlg.inputbox);
	205	init_one_color(&dlg.inputbox_border);
	206	init_one_color(&dlg.searchbox);
	207	init_one_color(&dlg.searchbox_title);
	208	init_one_color(&dlg.searchbox_border);
	209	init_one_color(&dlg.position_indicator);
	210	init_one_color(&dlg.menubox);
	211	init_one_color(&dlg.menubox_border);
	212	init_one_color(&dlg.item);
	213	init_one_color(&dlg.item_selected);
	214	init_one_color(&dlg.tag);
	215	init_one_color(&dlg.tag_selected);
	216	init_one_color(&dlg.tag_key);
	217	init_one_color(&dlg.tag_key_selected);
	218	init_one_color(&dlg.check);
	219	init_one_color(&dlg.check_selected);
	220	init_one_color(&dlg.uarrow);
	221	init_one_color(&dlg.darrow);
	222	}
1da177e4 LT	223
1da177e4 LT	224	/*
98e5a157	225	* Setup for color display
1da177e4	226	*/
45897213	227	static void color_setup(const char *theme)
98e5a157	228	{
c154348f RZ	229	int use_color;
	230
	231	use_color = set_theme(theme);
	232	if (use_color && has_colors()) {
	233	start_color();
	234	init_dialog_colors();
	235	} else
98e5a157	236	set_mono_theme();
98e5a157	237	}
1da177e4 LT	238
	239	/*
	240	* Set window to attribute 'attr'
	241	*/
b1c5f1c6	242	void attr_clear(WINDOW * win, int height, int width, chtype attr)
1da177e4	243	{
b1c5f1c6 SR	244	int i, j;
	245
	246	wattrset(win, attr);
	247	for (i = 0; i < height; i++) {
	248	wmove(win, i, 0);
	249	for (j = 0; j < width; j++)
	250	waddch(win, ' ');
	251	}
	252	touchwin(win);
1da177e4 LT	253	}
1da177e4 LT	254
b1c5f1c6	255	void dialog_clear(void)
1da177e4	256	{
98e5a157	257	attr_clear(stdscr, LINES, COLS, dlg.screen.atr);
b1c5f1c6	258	/* Display background title if it exists ... - SLH */
98e5a157	259	if (dlg.backtitle != NULL) {
9a69abf8 BP	260	int i, len = 0, skip = 0;
9a69abf8 BP	261	struct subtitle_list *pos;
b1c5f1c6	262
98e5a157 SR	263	wattrset(stdscr, dlg.screen.atr);
98e5a157 SR	264	mvwaddstr(stdscr, 0, 1, (char *)dlg.backtitle);
9a69abf8 BP	265
	266	for (pos = dlg.subtitles; pos != NULL; pos = pos->next) {
	267	/* 3 is for the arrow and spaces */
	268	len += strlen(pos->text) + 3;
	269	}
	270
b1c5f1c6	271	wmove(stdscr, 1, 1);
9a69abf8 BP	272	if (len > COLS - 2) {
	273	const char *ellipsis = "[...] ";
	274	waddstr(stdscr, ellipsis);
	275	skip = len - (COLS - 2 - strlen(ellipsis));
	276	}
	277
	278	for (pos = dlg.subtitles; pos != NULL; pos = pos->next) {
	279	if (skip == 0)
	280	waddch(stdscr, ACS_RARROW);
	281	else
	282	skip--;
	283
	284	if (skip == 0)
	285	waddch(stdscr, ' ');
	286	else
	287	skip--;
	288
	289	if (skip < strlen(pos->text)) {
	290	waddstr(stdscr, pos->text + skip);
	291	skip = 0;
	292	} else
	293	skip -= strlen(pos->text);
	294
	295	if (skip == 0)
	296	waddch(stdscr, ' ');
	297	else
	298	skip--;
	299	}
	300
	301	for (i = len + 1; i < COLS - 1; i++)
b1c5f1c6 SR	302	waddch(stdscr, ACS_HLINE);
	303	}
	304	wnoutrefresh(stdscr);
1da177e4 LT	305	}
	306
	307	/*
	308	* Do some initialization for dialog
	309	*/
09af091f	310	int init_dialog(const char *backtitle)
2982de69	311	{
09af091f LM	312	int height, width;
	313
	314	initscr(); /* Init curses */
3eb95c84 DG	315
	316	/* Get current cursor position for signal handler in mconf.c */
	317	getyx(stdscr, saved_y, saved_x);
	318
09af091f LM	319	getmaxyx(stdscr, height, width);
	320	if (height < 19 \|\| width < 80) {
	321	endwin();
	322	return -ERRDISPLAYTOOSMALL;
	323	}
2982de69	324
95e30f95	325	dlg.backtitle = backtitle;
09af091f	326	color_setup(getenv("MENUCONFIG_COLOR"));
95e30f95	327
b1c5f1c6 SR	328	keypad(stdscr, TRUE);
	329	cbreak();
	330	noecho();
b1c5f1c6	331	dialog_clear();
09af091f LM	332
	333	return 0;
	334	}
	335
	336	void set_dialog_backtitle(const char *backtitle)
	337	{
	338	dlg.backtitle = backtitle;
1da177e4 LT	339	}
1da177e4 LT	340
9a69abf8 BP	341	void set_dialog_subtitles(struct subtitle_list *subtitles)
	342	{
	343	dlg.subtitles = subtitles;
	344	}
	345
1da177e4 LT	346	/*
	347	* End using dialog functions.
	348	*/
09af091f	349	void end_dialog(int x, int y)
1da177e4	350	{
09af091f LM	351	/* move cursor back to original position */
	352	move(y, x);
	353	refresh();
b1c5f1c6	354	endwin();
1da177e4 LT	355	}
1da177e4 LT	356
fa7009d5 SR	357	/* Print the title of the dialog. Center the title and truncate
	358	* tile if wider than dialog (- 2 chars).
	359	**/
	360	void print_title(WINDOW dialog, const char title, int width)
	361	{
	362	if (title) {
	363	int tlen = MIN(width - 2, strlen(title));
98e5a157	364	wattrset(dialog, dlg.title.atr);
fa7009d5 SR	365	mvwaddch(dialog, 0, (width - tlen) / 2 - 1, ' ');
	366	mvwaddnstr(dialog, 0, (width - tlen)/2, title, tlen);
	367	waddch(dialog, ' ');
	368	}
	369	}
	370
1da177e4 LT	371	/*
	372	* Print a string of text in a window, automatically wrap around to the
	373	* next line if the string is too long to fit on one line. Newline
	374	* characters '\n' are replaced by spaces. We start on a new line
	375	* if there is no room for at least 4 nonblanks following a double-space.
	376	*/
b1c5f1c6	377	void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x)
1da177e4	378	{
b1c5f1c6 SR	379	int newl, cur_x, cur_y;
	380	int i, prompt_len, room, wlen;
	381	char tempstr[MAX_LEN + 1], word, sp, *sp2;
	382
	383	strcpy(tempstr, prompt);
	384
	385	prompt_len = strlen(tempstr);
	386
	387	/*
	388	* Remove newlines
	389	*/
	390	for (i = 0; i < prompt_len; i++) {
	391	if (tempstr[i] == '\n')
	392	tempstr[i] = ' ';
	393	}
	394
	395	if (prompt_len <= width - x * 2) { /* If prompt is short */
	396	wmove(win, y, (width - prompt_len) / 2);
	397	waddstr(win, tempstr);
	398	} else {
1da177e4	399	cur_x = x;
b1c5f1c6	400	cur_y = y;
1da177e4	401	newl = 1;
b1c5f1c6 SR	402	word = tempstr;
b1c5f1c6 SR	403	while (word && *word) {
f88d2055	404	sp = strchr(word, ' ');
b1c5f1c6 SR	405	if (sp)
	406	*sp++ = 0;
	407
	408	/* Wrap to next line if either the word does not fit,
	409	or it is the first word of a new sentence, and it is
	410	short, and the next word does not fit. */
	411	room = width - cur_x;
	412	wlen = strlen(word);
	413	if (wlen > room \|\|
	414	(newl && wlen < 4 && sp
	415	&& wlen + 1 + strlen(sp) > room
f88d2055	416	&& (!(sp2 = strchr(sp, ' '))
b1c5f1c6 SR	417	\|\| wlen + 1 + (sp2 - sp) > room))) {
	418	cur_y++;
	419	cur_x = x;
	420	}
	421	wmove(win, cur_y, cur_x);
	422	waddstr(win, word);
	423	getyx(win, cur_y, cur_x);
	424	cur_x++;
	425	if (sp && *sp == ' ') {
	426	cur_x++; /* double space */
	427	while (*++sp == ' ') ;
	428	newl = 1;
	429	} else
	430	newl = 0;
	431	word = sp;
	432	}
1da177e4	433	}
1da177e4 LT	434	}
	435
	436	/*
	437	* Print a button
	438	*/
b1c5f1c6	439	void print_button(WINDOW * win, const char *label, int y, int x, int selected)
1da177e4	440	{
b1c5f1c6 SR	441	int i, temp;
	442
	443	wmove(win, y, x);
98e5a157 SR	444	wattrset(win, selected ? dlg.button_active.atr
98e5a157 SR	445	: dlg.button_inactive.atr);
b1c5f1c6 SR	446	waddstr(win, "<");
	447	temp = strspn(label, " ");
	448	label += temp;
98e5a157 SR	449	wattrset(win, selected ? dlg.button_label_active.atr
98e5a157 SR	450	: dlg.button_label_inactive.atr);
b1c5f1c6 SR	451	for (i = 0; i < temp; i++)
b1c5f1c6 SR	452	waddch(win, ' ');
98e5a157 SR	453	wattrset(win, selected ? dlg.button_key_active.atr
98e5a157 SR	454	: dlg.button_key_inactive.atr);
b1c5f1c6	455	waddch(win, label[0]);
98e5a157 SR	456	wattrset(win, selected ? dlg.button_label_active.atr
98e5a157 SR	457	: dlg.button_label_inactive.atr);
b1c5f1c6	458	waddstr(win, (char *)label + 1);
98e5a157 SR	459	wattrset(win, selected ? dlg.button_active.atr
98e5a157 SR	460	: dlg.button_inactive.atr);
b1c5f1c6 SR	461	waddstr(win, ">");
b1c5f1c6 SR	462	wmove(win, y, x + temp + 1);
1da177e4 LT	463	}
	464
	465	/*
	466	* Draw a rectangular box with line drawing characters
	467	*/
	468	void
b1c5f1c6 SR	469	draw_box(WINDOW * win, int y, int x, int height, int width,
b1c5f1c6 SR	470	chtype box, chtype border)
1da177e4	471	{
b1c5f1c6 SR	472	int i, j;
	473
	474	wattrset(win, 0);
	475	for (i = 0; i < height; i++) {
	476	wmove(win, y + i, x);
	477	for (j = 0; j < width; j++)
	478	if (!i && !j)
	479	waddch(win, border \| ACS_ULCORNER);
	480	else if (i == height - 1 && !j)
	481	waddch(win, border \| ACS_LLCORNER);
	482	else if (!i && j == width - 1)
	483	waddch(win, box \| ACS_URCORNER);
	484	else if (i == height - 1 && j == width - 1)
	485	waddch(win, box \| ACS_LRCORNER);
	486	else if (!i)
	487	waddch(win, border \| ACS_HLINE);
	488	else if (i == height - 1)
	489	waddch(win, box \| ACS_HLINE);
	490	else if (!j)
	491	waddch(win, border \| ACS_VLINE);
	492	else if (j == width - 1)
	493	waddch(win, box \| ACS_VLINE);
	494	else
	495	waddch(win, box \| ' ');
	496	}
1da177e4 LT	497	}
	498
	499	/*
	500	* Draw shadows along the right and bottom edge to give a more 3D look
	501	* to the boxes
	502	*/
b1c5f1c6	503	void draw_shadow(WINDOW * win, int y, int x, int height, int width)
1da177e4	504	{
b1c5f1c6 SR	505	int i;
	506
	507	if (has_colors()) { /* Whether terminal supports color? */
98e5a157	508	wattrset(win, dlg.shadow.atr);
b1c5f1c6 SR	509	wmove(win, y + height, x + 2);
	510	for (i = 0; i < width; i++)
	511	waddch(win, winch(win) & A_CHARTEXT);
	512	for (i = y + 1; i < y + height + 1; i++) {
	513	wmove(win, i, x + width);
	514	waddch(win, winch(win) & A_CHARTEXT);
	515	waddch(win, winch(win) & A_CHARTEXT);
	516	}
	517	wnoutrefresh(win);
1da177e4	518	}
1da177e4 LT	519	}
	520
	521	/*
	522	* Return the position of the first alphabetic character in a string.
	523	*/
b1c5f1c6	524	int first_alpha(const char string, const char exempt)
1da177e4	525	{
b1c5f1c6	526	int i, in_paren = 0, c;
1da177e4 LT	527
	528	for (i = 0; i < strlen(string); i++) {
	529	c = tolower(string[i]);
	530
b1c5f1c6 SR	531	if (strchr("<[(", c))
	532	++in_paren;
	533	if (strchr(">])", c) && in_paren > 0)
	534	--in_paren;
1da177e4	535
b1c5f1c6	536	if ((!in_paren) && isalpha(c) && strchr(exempt, c) == 0)
1da177e4 LT	537	return i;
	538	}
	539
	540	return 0;
	541	}
2982de69	542
f3cbcdc9 SR	543	/*
	544	* ncurses uses ESC to detect escaped char sequences. This resutl in
	545	* a small timeout before ESC is actually delivered to the application.
	546	* lxdialog suggest <ESC> <ESC> which is correctly translated to two
	547	* times esc. But then we need to ignore the second esc to avoid stepping
	548	* out one menu too much. Filter away all escaped key sequences since
	549	* keypad(FALSE) turn off ncurses support for escape sequences - and thats
	550	* needed to make notimeout() do as expected.
	551	*/
	552	int on_key_esc(WINDOW *win)
	553	{
	554	int key;
	555	int key2;
	556	int key3;
	557
	558	nodelay(win, TRUE);
	559	keypad(win, FALSE);
	560	key = wgetch(win);
	561	key2 = wgetch(win);
	562	do {
	563	key3 = wgetch(win);
	564	} while (key3 != ERR);
	565	nodelay(win, FALSE);
	566	keypad(win, TRUE);
	567	if (key == KEY_ESC && key2 == ERR)
	568	return KEY_ESC;
	569	else if (key != ERR && key != KEY_ESC && key2 == ERR)
	570	ungetch(key);
	571
	572	return -1;
	573	}
	574
c8dc68ad SR	575	/* redraw screen in new size */
	576	int on_key_resize(void)
	577	{
	578	dialog_clear();
	579	return KEY_RESIZE;
	580	}
f3cbcdc9	581
2982de69 SR	582	struct dialog_list *item_cur;
	583	struct dialog_list item_nil;
	584	struct dialog_list *item_head;
	585
	586	void item_reset(void)
	587	{
	588	struct dialog_list p, next;
	589
	590	for (p = item_head; p; p = next) {
	591	next = p->next;
	592	free(p);
	593	}
	594	item_head = NULL;
	595	item_cur = &item_nil;
	596	}
	597
	598	void item_make(const char *fmt, ...)
	599	{
	600	va_list ap;
	601	struct dialog_list p = malloc(sizeof(p));
	602
	603	if (item_head)
	604	item_cur->next = p;
	605	else
	606	item_head = p;
	607	item_cur = p;
	608	memset(p, 0, sizeof(*p));
	609
	610	va_start(ap, fmt);
	611	vsnprintf(item_cur->node.str, sizeof(item_cur->node.str), fmt, ap);
	612	va_end(ap);
	613	}
	614
	615	void item_add_str(const char *fmt, ...)
	616	{
	617	va_list ap;
	618	size_t avail;
	619
	620	avail = sizeof(item_cur->node.str) - strlen(item_cur->node.str);
	621
	622	va_start(ap, fmt);
	623	vsnprintf(item_cur->node.str + strlen(item_cur->node.str),
	624	avail, fmt, ap);
	625	item_cur->node.str[sizeof(item_cur->node.str) - 1] = '\0';
	626	va_end(ap);
	627	}
	628
	629	void item_set_tag(char tag)
	630	{
	631	item_cur->node.tag = tag;
	632	}
	633	void item_set_data(void *ptr)
	634	{
	635	item_cur->node.data = ptr;
	636	}
	637
	638	void item_set_selected(int val)
	639	{
	640	item_cur->node.selected = val;
	641	}
	642
	643	int item_activate_selected(void)
	644	{
	645	item_foreach()
646	if (item_is_selected())
647	return 1;
648	return 0;
649	}
650
651	void *item_data(void)
652	{
653	return item_cur->node.data;
654	}
655
656	char item_tag(void)
657	{
658	return item_cur->node.tag;
659	}
660
661	int item_count(void)
662	{
663	int n = 0;
664	struct dialog_list *p;
665
666	for (p = item_head; p; p = p->next)
667	n++;
668	return n;
669	}
670
671	void item_set(int n)
672	{
673	int i = 0;
674	item_foreach()
675	if (i++ == n)
676	return;
677	}
678
679	int item_n(void)
680	{
681	int n = 0;
682	struct dialog_list *p;
683
684	for (p = item_head; p; p = p->next) {
685	if (p == item_cur)
686	return n;
687	n++;
688	}
689	return 0;
690	}
691
692	const char *item_str(void)
693	{
694	return item_cur->node.str;
695	}
696
697	int item_is_selected(void)
698	{
699	return (item_cur->node.selected != 0);
700	}
701
702	int item_is_tag(char tag)
703	{
704	return (item_cur->node.tag == tag);
705	}