scripts/kconfig/nconf.gui.c - third_party/linux - Git at Google

 /*
  * Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com?
  * Released under the terms of the GNU GPL v2.0.
  *
  * Derived from menuconfig.
  *
  */
 #include "nconf.h"

 /* a list of all the different widgets we use */
 attributes_t attributes[ATTR_MAX+1] = {0};

 /* available colors:
    COLOR_BLACK   0
    COLOR_RED     1
    COLOR_GREEN   2
    COLOR_YELLOW  3
    COLOR_BLUE    4
    COLOR_MAGENTA 5
    COLOR_CYAN    6
    COLOR_WHITE   7
    */
 static void set_normal_colors(void)
 {
 	init_pair(NORMAL, -1, -1);
 	init_pair(MAIN_HEADING, COLOR_MAGENTA, -1);

 	/* FORE is for the selected item */
 	init_pair(MAIN_MENU_FORE, -1, -1);
 	/* BACK for all the rest */
 	init_pair(MAIN_MENU_BACK, -1, -1);
 	init_pair(MAIN_MENU_GREY, -1, -1);
 	init_pair(MAIN_MENU_HEADING, COLOR_GREEN, -1);
 	init_pair(MAIN_MENU_BOX, COLOR_YELLOW, -1);

 	init_pair(SCROLLWIN_TEXT, -1, -1);
 	init_pair(SCROLLWIN_HEADING, COLOR_GREEN, -1);
 	init_pair(SCROLLWIN_BOX, COLOR_YELLOW, -1);

 	init_pair(DIALOG_TEXT, -1, -1);
 	init_pair(DIALOG_BOX, COLOR_YELLOW, -1);
 	init_pair(DIALOG_MENU_BACK, COLOR_YELLOW, -1);
 	init_pair(DIALOG_MENU_FORE, COLOR_RED, -1);

 	init_pair(INPUT_BOX, COLOR_YELLOW, -1);
 	init_pair(INPUT_HEADING, COLOR_GREEN, -1);
 	init_pair(INPUT_TEXT, -1, -1);
 	init_pair(INPUT_FIELD, -1, -1);

 	init_pair(FUNCTION_HIGHLIGHT, -1, -1);
 	init_pair(FUNCTION_TEXT, COLOR_BLUE, -1);
 }

 /* available attributes:
    A_NORMAL        Normal display (no highlight)
    A_STANDOUT      Best highlighting mode of the terminal.
    A_UNDERLINE     Underlining
    A_REVERSE       Reverse video
    A_BLINK         Blinking
    A_DIM           Half bright
    A_BOLD          Extra bright or bold
    A_PROTECT       Protected mode
    A_INVIS         Invisible or blank mode
    A_ALTCHARSET    Alternate character set
    A_CHARTEXT      Bit-mask to extract a character
    COLOR_PAIR(n)   Color-pair number n
    */
 static void normal_color_theme(void)
 {
 	/* automatically add color... */
 #define mkattr(name, attr) do { \
 attributes[name] = attr | COLOR_PAIR(name); } while (0)
 	mkattr(NORMAL, NORMAL);
 	mkattr(MAIN_HEADING, A_BOLD | A_UNDERLINE);

 	mkattr(MAIN_MENU_FORE, A_REVERSE);
 	mkattr(MAIN_MENU_BACK, A_NORMAL);
 	mkattr(MAIN_MENU_GREY, A_NORMAL);
 	mkattr(MAIN_MENU_HEADING, A_BOLD);
 	mkattr(MAIN_MENU_BOX, A_NORMAL);

 	mkattr(SCROLLWIN_TEXT, A_NORMAL);
 	mkattr(SCROLLWIN_HEADING, A_BOLD);
 	mkattr(SCROLLWIN_BOX, A_BOLD);

 	mkattr(DIALOG_TEXT, A_BOLD);
 	mkattr(DIALOG_BOX, A_BOLD);
 	mkattr(DIALOG_MENU_FORE, A_STANDOUT);
 	mkattr(DIALOG_MENU_BACK, A_NORMAL);

 	mkattr(INPUT_BOX, A_NORMAL);
 	mkattr(INPUT_HEADING, A_BOLD);
 	mkattr(INPUT_TEXT, A_NORMAL);
 	mkattr(INPUT_FIELD, A_UNDERLINE);

 	mkattr(FUNCTION_HIGHLIGHT, A_BOLD);
 	mkattr(FUNCTION_TEXT, A_REVERSE);
 }

 static void no_colors_theme(void)
 {
 	/* automatically add highlight, no color */
 #define mkattrn(name, attr) { attributes[name] = attr; }

 	mkattrn(NORMAL, NORMAL);
 	mkattrn(MAIN_HEADING, A_BOLD | A_UNDERLINE);

 	mkattrn(MAIN_MENU_FORE, A_STANDOUT);
 	mkattrn(MAIN_MENU_BACK, A_NORMAL);
 	mkattrn(MAIN_MENU_GREY, A_NORMAL);
 	mkattrn(MAIN_MENU_HEADING, A_BOLD);
 	mkattrn(MAIN_MENU_BOX, A_NORMAL);

 	mkattrn(SCROLLWIN_TEXT, A_NORMAL);
 	mkattrn(SCROLLWIN_HEADING, A_BOLD);
 	mkattrn(SCROLLWIN_BOX, A_BOLD);

 	mkattrn(DIALOG_TEXT, A_NORMAL);
 	mkattrn(DIALOG_BOX, A_BOLD);
 	mkattrn(DIALOG_MENU_FORE, A_STANDOUT);
 	mkattrn(DIALOG_MENU_BACK, A_NORMAL);

 	mkattrn(INPUT_BOX, A_BOLD);
 	mkattrn(INPUT_HEADING, A_BOLD);
 	mkattrn(INPUT_TEXT, A_NORMAL);
 	mkattrn(INPUT_FIELD, A_UNDERLINE);

 	mkattrn(FUNCTION_HIGHLIGHT, A_BOLD);
 	mkattrn(FUNCTION_TEXT, A_REVERSE);
 }

 void set_colors()
 {
 	start_color();
 	use_default_colors();
 	set_normal_colors();
 	if (has_colors()) {
 		normal_color_theme();
 	} else {
 		/* give defaults */
 		no_colors_theme();
 	}
 }


 /* this changes the windows attributes !!! */
 void print_in_middle(WINDOW *win,
 		int starty,
 		int startx,
 		int width,
 		const char *string,
 		chtype color)
 {      int length, x, y;
 	float temp;


 	if (win == NULL)
 		win = stdscr;
 	getyx(win, y, x);
 	if (startx != 0)
 		x = startx;
 	if (starty != 0)
 		y = starty;
 	if (width == 0)
 		width = 80;

 	length = strlen(string);
 	temp = (width - length) / 2;
 	x = startx + (int)temp;
 	(void) wattrset(win, color);
 	mvwprintw(win, y, x, "%s", string);
 	refresh();
 }

 int get_line_no(const char *text)
 {
 	int i;
 	int total = 1;

 	if (!text)
 		return 0;

 	for (i = 0; text[i] != '\0'; i++)
 		if (text[i] == '\n')
 			total++;
 	return total;
 }

 const char *get_line(const char *text, int line_no)
 {
 	int i;
 	int lines = 0;

 	if (!text)
 		return 0;

 	for (i = 0; text[i] != '\0' && lines < line_no; i++)
 		if (text[i] == '\n')
 			lines++;
 	return text+i;
 }

 int get_line_length(const char *line)
 {
 	int res = 0;
 	while (*line != '\0' && *line != '\n') {
 		line++;
 		res++;
 	}
 	return res;
 }

 /* print all lines to the window. */
 void fill_window(WINDOW *win, const char *text)
 {
 	int x, y;
 	int total_lines = get_line_no(text);
 	int i;

 	getmaxyx(win, y, x);
 	/* do not go over end of line */
 	total_lines = min(total_lines, y);
 	for (i = 0; i < total_lines; i++) {
 		char tmp[x+10];
 		const char *line = get_line(text, i);
 		int len = get_line_length(line);
 		strncpy(tmp, line, min(len, x));
 		tmp[len] = '\0';
 		mvwprintw(win, i, 0, "%s", tmp);
 	}
 }

 /* get the message, and buttons.
  * each button must be a char*
  * return the selected button
  *
  * this dialog is used for 2 different things:
  * 1) show a text box, no buttons.
  * 2) show a dialog, with horizontal buttons
  */
 int btn_dialog(WINDOW *main_window, const char *msg, int btn_num, ...)
 {
 	va_list ap;
 	char *btn;
 	int btns_width = 0;
 	int msg_lines = 0;
 	int msg_width = 0;
 	int total_width;
 	int win_rows = 0;
 	WINDOW *win;
 	WINDOW *msg_win;
 	WINDOW *menu_win;
 	MENU *menu;
 	ITEM *btns[btn_num+1];
 	int i, x, y;
 	int res = -1;


 	va_start(ap, btn_num);
 	for (i = 0; i < btn_num; i++) {
 		btn = va_arg(ap, char *);
 		btns[i] = new_item(btn, "");
 		btns_width += strlen(btn)+1;
 	}
 	va_end(ap);
 	btns[btn_num] = NULL;

 	/* find the widest line of msg: */
 	msg_lines = get_line_no(msg);
 	for (i = 0; i < msg_lines; i++) {
 		const char *line = get_line(msg, i);
 		int len = get_line_length(line);
 		if (msg_width < len)
 			msg_width = len;
 	}

 	total_width = max(msg_width, btns_width);
 	/* place dialog in middle of screen */
 	y = (LINES-(msg_lines+4))/2;
 	x = (COLS-(total_width+4))/2;


 	/* create the windows */
 	if (btn_num > 0)
 		win_rows = msg_lines+4;
 	else
 		win_rows = msg_lines+2;

 	win = newwin(win_rows, total_width+4, y, x);
 	keypad(win, TRUE);
 	menu_win = derwin(win, 1, btns_width, win_rows-2,
 			1+(total_width+2-btns_width)/2);
 	menu = new_menu(btns);
 	msg_win = derwin(win, win_rows-2, msg_width, 1,
 			1+(total_width+2-msg_width)/2);

 	set_menu_fore(menu, attributes[DIALOG_MENU_FORE]);
 	set_menu_back(menu, attributes[DIALOG_MENU_BACK]);

 	(void) wattrset(win, attributes[DIALOG_BOX]);
 	box(win, 0, 0);

 	/* print message */
 	(void) wattrset(msg_win, attributes[DIALOG_TEXT]);
 	fill_window(msg_win, msg);

 	set_menu_win(menu, win);
 	set_menu_sub(menu, menu_win);
 	set_menu_format(menu, 1, btn_num);
 	menu_opts_off(menu, O_SHOWDESC);
 	menu_opts_off(menu, O_SHOWMATCH);
 	menu_opts_on(menu, O_ONEVALUE);
 	menu_opts_on(menu, O_NONCYCLIC);
 	set_menu_mark(menu, "");
 	post_menu(menu);


 	touchwin(win);
 	refresh_all_windows(main_window);
 	while ((res = wgetch(win))) {
 		switch (res) {
 		case KEY_LEFT:
 			menu_driver(menu, REQ_LEFT_ITEM);
 			break;
 		case KEY_RIGHT:
 			menu_driver(menu, REQ_RIGHT_ITEM);
 			break;
 		case 10: /* ENTER */
 		case 27: /* ESCAPE */
 		case ' ':
 		case KEY_F(F_BACK):
 		case KEY_F(F_EXIT):
 			break;
 		}
 		touchwin(win);
 		refresh_all_windows(main_window);

 		if (res == 10 || res == ' ') {
 			res = item_index(current_item(menu));
 			break;
 		} else if (res == 27 || res == KEY_F(F_BACK) ||
 				res == KEY_F(F_EXIT)) {
 			res = KEY_EXIT;
 			break;
 		}
 	}

 	unpost_menu(menu);
 	free_menu(menu);
 	for (i = 0; i < btn_num; i++)
 		free_item(btns[i]);

 	delwin(win);
 	return res;
 }

 int dialog_inputbox(WINDOW *main_window,
 		const char *title, const char *prompt,
 		const char *init, char **resultp, int *result_len)
 {
 	int prompt_lines = 0;
 	int prompt_width = 0;
 	WINDOW *win;
 	WINDOW *prompt_win;
 	WINDOW *form_win;
 	PANEL *panel;
 	int i, x, y;
 	int res = -1;
 	int cursor_position = strlen(init);
 	int cursor_form_win;
 	char *result = *resultp;

 	if (strlen(init)+1 > *result_len) {
 		*result_len = strlen(init)+1;
 		*resultp = result = realloc(result, *result_len);
 	}

 	/* find the widest line of msg: */
 	prompt_lines = get_line_no(prompt);
 	for (i = 0; i < prompt_lines; i++) {
 		const char *line = get_line(prompt, i);
 		int len = get_line_length(line);
 		prompt_width = max(prompt_width, len);
 	}

 	if (title)
 		prompt_width = max(prompt_width, strlen(title));

 	/* place dialog in middle of screen */
 	y = (LINES-(prompt_lines+4))/2;
 	x = (COLS-(prompt_width+4))/2;

 	strncpy(result, init, *result_len);

 	/* create the windows */
 	win = newwin(prompt_lines+6, prompt_width+7, y, x);
 	prompt_win = derwin(win, prompt_lines+1, prompt_width, 2, 2);
 	form_win = derwin(win, 1, prompt_width, prompt_lines+3, 2);
 	keypad(form_win, TRUE);

 	(void) wattrset(form_win, attributes[INPUT_FIELD]);

 	(void) wattrset(win, attributes[INPUT_BOX]);
 	box(win, 0, 0);
 	(void) wattrset(win, attributes[INPUT_HEADING]);
 	if (title)
 		mvwprintw(win, 0, 3, "%s", title);

 	/* print message */
 	(void) wattrset(prompt_win, attributes[INPUT_TEXT]);
 	fill_window(prompt_win, prompt);

 	mvwprintw(form_win, 0, 0, "%*s", prompt_width, " ");
 	cursor_form_win = min(cursor_position, prompt_width-1);
 	mvwprintw(form_win, 0, 0, "%s",
 		  result + cursor_position-cursor_form_win);

 	/* create panels */
 	panel = new_panel(win);

 	/* show the cursor */
 	curs_set(1);

 	touchwin(win);
 	refresh_all_windows(main_window);
 	while ((res = wgetch(form_win))) {
 		int len = strlen(result);
 		switch (res) {
 		case 10: /* ENTER */
 		case 27: /* ESCAPE */
 		case KEY_F(F_HELP):
 		case KEY_F(F_EXIT):
 		case KEY_F(F_BACK):
 			break;
 		case 127:
 		case KEY_BACKSPACE:
 			if (cursor_position > 0) {
 				memmove(&result[cursor_position-1],
 						&result[cursor_position],
 						len-cursor_position+1);
 				cursor_position--;
 				cursor_form_win--;
 				len--;
 			}
 			break;
 		case KEY_DC:
 			if (cursor_position >= 0 && cursor_position < len) {
 				memmove(&result[cursor_position],
 						&result[cursor_position+1],
 						len-cursor_position+1);
 				len--;
 			}
 			break;
 		case KEY_UP:
 		case KEY_RIGHT:
 			if (cursor_position < len) {
 				cursor_position++;
 				cursor_form_win++;
 			}
 			break;
 		case KEY_DOWN:
 		case KEY_LEFT:
 			if (cursor_position > 0) {
 				cursor_position--;
 				cursor_form_win--;
 			}
 			break;
 		case KEY_HOME:
 			cursor_position = 0;
 			cursor_form_win = 0;
 			break;
 		case KEY_END:
 			cursor_position = len;
 			cursor_form_win = min(cursor_position, prompt_width-1);
 			break;
 		default:
 			if ((isgraph(res) || isspace(res))) {
 				/* one for new char, one for '\0' */
 				if (len+2 > *result_len) {
 					*result_len = len+2;
 					*resultp = result = realloc(result,
 								*result_len);
 				}
 				/* insert the char at the proper position */
 				memmove(&result[cursor_position+1],
 						&result[cursor_position],
 						len-cursor_position+1);
 				result[cursor_position] = res;
 				cursor_position++;
 				cursor_form_win++;
 				len++;
 			} else {
 				mvprintw(0, 0, "unknown key: %d\n", res);
 			}
 			break;
 		}
 		if (cursor_form_win < 0)
 			cursor_form_win = 0;
 		else if (cursor_form_win > prompt_width-1)
 			cursor_form_win = prompt_width-1;

 		wmove(form_win, 0, 0);
 		wclrtoeol(form_win);
 		mvwprintw(form_win, 0, 0, "%*s", prompt_width, " ");
 		mvwprintw(form_win, 0, 0, "%s",
 			result + cursor_position-cursor_form_win);
 		wmove(form_win, 0, cursor_form_win);
 		touchwin(win);
 		refresh_all_windows(main_window);

 		if (res == 10) {
 			res = 0;
 			break;
 		} else if (res == 27 || res == KEY_F(F_BACK) ||
 				res == KEY_F(F_EXIT)) {
 			res = KEY_EXIT;
 			break;
 		} else if (res == KEY_F(F_HELP)) {
 			res = 1;
 			break;
 		}
 	}

 	/* hide the cursor */
 	curs_set(0);
 	del_panel(panel);
 	delwin(prompt_win);
 	delwin(form_win);
 	delwin(win);
 	return res;
 }

 /* refresh all windows in the correct order */
 void refresh_all_windows(WINDOW *main_window)
 {
 	update_panels();
 	touchwin(main_window);
 	refresh();
 }

 /* layman's scrollable window... */
 void show_scroll_win(WINDOW *main_window,
 		const char *title,
 		const char *text)
 {
 	int res;
 	int total_lines = get_line_no(text);
 	int x, y;
 	int start_x = 0, start_y = 0;
 	int text_lines = 0, text_cols = 0;
 	int total_cols = 0;
 	int win_cols = 0;
 	int win_lines = 0;
 	int i = 0;
 	WINDOW *win;
 	WINDOW *pad;
 	PANEL *panel;

 	/* find the widest line of msg: */
 	total_lines = get_line_no(text);
 	for (i = 0; i < total_lines; i++) {
 		const char *line = get_line(text, i);
 		int len = get_line_length(line);
 		total_cols = max(total_cols, len+2);
 	}

 	/* create the pad */
 	pad = newpad(total_lines+10, total_cols+10);
 	(void) wattrset(pad, attributes[SCROLLWIN_TEXT]);
 	fill_window(pad, text);

 	win_lines = min(total_lines+4, LINES-2);
 	win_cols = min(total_cols+2, COLS-2);
 	text_lines = max(win_lines-4, 0);
 	text_cols = max(win_cols-2, 0);

 	/* place window in middle of screen */
 	y = (LINES-win_lines)/2;
 	x = (COLS-win_cols)/2;

 	win = newwin(win_lines, win_cols, y, x);
 	keypad(win, TRUE);
 	/* show the help in the help window, and show the help panel */
 	(void) wattrset(win, attributes[SCROLLWIN_BOX]);
 	box(win, 0, 0);
 	(void) wattrset(win, attributes[SCROLLWIN_HEADING]);
 	mvwprintw(win, 0, 3, " %s ", title);
 	panel = new_panel(win);

 	/* handle scrolling */
 	do {

 		copywin(pad, win, start_y, start_x, 2, 2, text_lines,
 				text_cols, 0);
 		print_in_middle(win,
 				text_lines+2,
 				0,
 				text_cols,
 				"<OK>",
 				attributes[DIALOG_MENU_FORE]);
 		wrefresh(win);

 		res = wgetch(win);
 		switch (res) {
 		case KEY_NPAGE:
 		case ' ':
 		case 'd':
 			start_y += text_lines-2;
 			break;
 		case KEY_PPAGE:
 		case 'u':
 			start_y -= text_lines+2;
 			break;
 		case KEY_HOME:
 			start_y = 0;
 			break;
 		case KEY_END:
 			start_y = total_lines-text_lines;
 			break;
 		case KEY_DOWN:
 		case 'j':
 			start_y++;
 			break;
 		case KEY_UP:
 		case 'k':
 			start_y--;
 			break;
 		case KEY_LEFT:
 		case 'h':
 			start_x--;
 			break;
 		case KEY_RIGHT:
 		case 'l':
 			start_x++;
 			break;
 		}
 		if (res == 10 || res == 27 || res == 'q' ||
 			res == KEY_F(F_HELP) || res == KEY_F(F_BACK) ||
 			res == KEY_F(F_EXIT))
 			break;
 		if (start_y < 0)
 			start_y = 0;
 		if (start_y >= total_lines-text_lines)
 			start_y = total_lines-text_lines;
 		if (start_x < 0)
 			start_x = 0;
 		if (start_x >= total_cols-text_cols)
 			start_x = total_cols-text_cols;
 	} while (res);

 	del_panel(panel);
 	delwin(win);
 	refresh_all_windows(main_window);
 }
	/*
	* Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com?
	* Released under the terms of the GNU GPL v2.0.
	*
	* Derived from menuconfig.
	*
	*/
	#include "nconf.h"

	/* a list of all the different widgets we use */
	attributes_t attributes[ATTR_MAX+1] = {0};

	/* available colors:
	COLOR_BLACK 0
	COLOR_RED 1
	COLOR_GREEN 2
	COLOR_YELLOW 3
	COLOR_BLUE 4
	COLOR_MAGENTA 5
	COLOR_CYAN 6
	COLOR_WHITE 7
	*/
	static void set_normal_colors(void)
	{
	init_pair(NORMAL, -1, -1);
	init_pair(MAIN_HEADING, COLOR_MAGENTA, -1);

	/* FORE is for the selected item */
	init_pair(MAIN_MENU_FORE, -1, -1);
	/* BACK for all the rest */
	init_pair(MAIN_MENU_BACK, -1, -1);
	init_pair(MAIN_MENU_GREY, -1, -1);
	init_pair(MAIN_MENU_HEADING, COLOR_GREEN, -1);
	init_pair(MAIN_MENU_BOX, COLOR_YELLOW, -1);

	init_pair(SCROLLWIN_TEXT, -1, -1);
	init_pair(SCROLLWIN_HEADING, COLOR_GREEN, -1);
	init_pair(SCROLLWIN_BOX, COLOR_YELLOW, -1);

	init_pair(DIALOG_TEXT, -1, -1);
	init_pair(DIALOG_BOX, COLOR_YELLOW, -1);
	init_pair(DIALOG_MENU_BACK, COLOR_YELLOW, -1);
	init_pair(DIALOG_MENU_FORE, COLOR_RED, -1);

	init_pair(INPUT_BOX, COLOR_YELLOW, -1);
	init_pair(INPUT_HEADING, COLOR_GREEN, -1);
	init_pair(INPUT_TEXT, -1, -1);
	init_pair(INPUT_FIELD, -1, -1);

	init_pair(FUNCTION_HIGHLIGHT, -1, -1);
	init_pair(FUNCTION_TEXT, COLOR_BLUE, -1);
	}

	/* available attributes:
	A_NORMAL Normal display (no highlight)
	A_STANDOUT Best highlighting mode of the terminal.
	A_UNDERLINE Underlining
	A_REVERSE Reverse video
	A_BLINK Blinking
	A_DIM Half bright
	A_BOLD Extra bright or bold
	A_PROTECT Protected mode
	A_INVIS Invisible or blank mode
	A_ALTCHARSET Alternate character set
	A_CHARTEXT Bit-mask to extract a character
	COLOR_PAIR(n) Color-pair number n
	*/
	static void normal_color_theme(void)
	{
	/* automatically add color... */
	#define mkattr(name, attr) do { \
	attributes[name] = attr \| COLOR_PAIR(name); } while (0)
	mkattr(NORMAL, NORMAL);
	mkattr(MAIN_HEADING, A_BOLD \| A_UNDERLINE);

	mkattr(MAIN_MENU_FORE, A_REVERSE);
	mkattr(MAIN_MENU_BACK, A_NORMAL);
	mkattr(MAIN_MENU_GREY, A_NORMAL);
	mkattr(MAIN_MENU_HEADING, A_BOLD);
	mkattr(MAIN_MENU_BOX, A_NORMAL);

	mkattr(SCROLLWIN_TEXT, A_NORMAL);
	mkattr(SCROLLWIN_HEADING, A_BOLD);
	mkattr(SCROLLWIN_BOX, A_BOLD);

	mkattr(DIALOG_TEXT, A_BOLD);
	mkattr(DIALOG_BOX, A_BOLD);
	mkattr(DIALOG_MENU_FORE, A_STANDOUT);
	mkattr(DIALOG_MENU_BACK, A_NORMAL);

	mkattr(INPUT_BOX, A_NORMAL);
	mkattr(INPUT_HEADING, A_BOLD);
	mkattr(INPUT_TEXT, A_NORMAL);
	mkattr(INPUT_FIELD, A_UNDERLINE);

	mkattr(FUNCTION_HIGHLIGHT, A_BOLD);
	mkattr(FUNCTION_TEXT, A_REVERSE);
	}

	static void no_colors_theme(void)
	{
	/* automatically add highlight, no color */
	#define mkattrn(name, attr) { attributes[name] = attr; }

	mkattrn(NORMAL, NORMAL);
	mkattrn(MAIN_HEADING, A_BOLD \| A_UNDERLINE);

	mkattrn(MAIN_MENU_FORE, A_STANDOUT);
	mkattrn(MAIN_MENU_BACK, A_NORMAL);
	mkattrn(MAIN_MENU_GREY, A_NORMAL);
	mkattrn(MAIN_MENU_HEADING, A_BOLD);
	mkattrn(MAIN_MENU_BOX, A_NORMAL);

	mkattrn(SCROLLWIN_TEXT, A_NORMAL);
	mkattrn(SCROLLWIN_HEADING, A_BOLD);
	mkattrn(SCROLLWIN_BOX, A_BOLD);

	mkattrn(DIALOG_TEXT, A_NORMAL);
	mkattrn(DIALOG_BOX, A_BOLD);
	mkattrn(DIALOG_MENU_FORE, A_STANDOUT);
	mkattrn(DIALOG_MENU_BACK, A_NORMAL);

	mkattrn(INPUT_BOX, A_BOLD);
	mkattrn(INPUT_HEADING, A_BOLD);
	mkattrn(INPUT_TEXT, A_NORMAL);
	mkattrn(INPUT_FIELD, A_UNDERLINE);

	mkattrn(FUNCTION_HIGHLIGHT, A_BOLD);
	mkattrn(FUNCTION_TEXT, A_REVERSE);
	}

	void set_colors()
	{
	start_color();
	use_default_colors();
	set_normal_colors();
	if (has_colors()) {
	normal_color_theme();
	} else {
	/* give defaults */
	no_colors_theme();
	}
	}


	/* this changes the windows attributes !!! */
	void print_in_middle(WINDOW *win,
	int starty,
	int startx,
	int width,
	const char *string,
	chtype color)
	{ int length, x, y;
	float temp;


	if (win == NULL)
	win = stdscr;
	getyx(win, y, x);
	if (startx != 0)
	x = startx;
	if (starty != 0)
	y = starty;
	if (width == 0)
	width = 80;

	length = strlen(string);
	temp = (width - length) / 2;
	x = startx + (int)temp;
	(void) wattrset(win, color);
	mvwprintw(win, y, x, "%s", string);
	refresh();
	}

	int get_line_no(const char *text)
	{
	int i;
	int total = 1;

	if (!text)
	return 0;

	for (i = 0; text[i] != '\0'; i++)
	if (text[i] == '\n')
	total++;
	return total;
	}

	const char get_line(const char text, int line_no)
	{
	int i;
	int lines = 0;

	if (!text)
	return 0;

	for (i = 0; text[i] != '\0' && lines < line_no; i++)
	if (text[i] == '\n')
	lines++;
	return text+i;
	}

	int get_line_length(const char *line)
	{
	int res = 0;
	while (line != '\0' && line != '\n') {
	line++;
	res++;
	}
	return res;
	}

	/* print all lines to the window. */
	void fill_window(WINDOW win, const char text)
	{
	int x, y;
	int total_lines = get_line_no(text);
	int i;

	getmaxyx(win, y, x);
	/* do not go over end of line */
	total_lines = min(total_lines, y);
	for (i = 0; i < total_lines; i++) {
	char tmp[x+10];
	const char *line = get_line(text, i);
	int len = get_line_length(line);
	strncpy(tmp, line, min(len, x));
	tmp[len] = '\0';
	mvwprintw(win, i, 0, "%s", tmp);
	}
	}

	/* get the message, and buttons.
	* each button must be a char*
	* return the selected button
	*
	* this dialog is used for 2 different things:
	* 1) show a text box, no buttons.
	* 2) show a dialog, with horizontal buttons
	*/
	int btn_dialog(WINDOW main_window, const char msg, int btn_num, ...)
	{
	va_list ap;
	char *btn;
	int btns_width = 0;
	int msg_lines = 0;
	int msg_width = 0;
	int total_width;
	int win_rows = 0;
	WINDOW *win;
	WINDOW *msg_win;
	WINDOW *menu_win;
	MENU *menu;
	ITEM *btns[btn_num+1];
	int i, x, y;
	int res = -1;


	va_start(ap, btn_num);
	for (i = 0; i < btn_num; i++) {
	btn = va_arg(ap, char *);
	btns[i] = new_item(btn, "");
	btns_width += strlen(btn)+1;
	}
	va_end(ap);
	btns[btn_num] = NULL;

	/* find the widest line of msg: */
	msg_lines = get_line_no(msg);
	for (i = 0; i < msg_lines; i++) {
	const char *line = get_line(msg, i);
	int len = get_line_length(line);
	if (msg_width < len)
	msg_width = len;
	}

	total_width = max(msg_width, btns_width);
	/* place dialog in middle of screen */
	y = (LINES-(msg_lines+4))/2;
	x = (COLS-(total_width+4))/2;


	/* create the windows */
	if (btn_num > 0)
	win_rows = msg_lines+4;
	else
	win_rows = msg_lines+2;

	win = newwin(win_rows, total_width+4, y, x);
	keypad(win, TRUE);
	menu_win = derwin(win, 1, btns_width, win_rows-2,
	1+(total_width+2-btns_width)/2);
	menu = new_menu(btns);
	msg_win = derwin(win, win_rows-2, msg_width, 1,
	1+(total_width+2-msg_width)/2);

	set_menu_fore(menu, attributes[DIALOG_MENU_FORE]);
	set_menu_back(menu, attributes[DIALOG_MENU_BACK]);

	(void) wattrset(win, attributes[DIALOG_BOX]);
	box(win, 0, 0);

	/* print message */
	(void) wattrset(msg_win, attributes[DIALOG_TEXT]);
	fill_window(msg_win, msg);

	set_menu_win(menu, win);
	set_menu_sub(menu, menu_win);
	set_menu_format(menu, 1, btn_num);
	menu_opts_off(menu, O_SHOWDESC);
	menu_opts_off(menu, O_SHOWMATCH);
	menu_opts_on(menu, O_ONEVALUE);
	menu_opts_on(menu, O_NONCYCLIC);
	set_menu_mark(menu, "");
	post_menu(menu);


	touchwin(win);
	refresh_all_windows(main_window);
	while ((res = wgetch(win))) {
	switch (res) {
	case KEY_LEFT:
	menu_driver(menu, REQ_LEFT_ITEM);
	break;
	case KEY_RIGHT:
	menu_driver(menu, REQ_RIGHT_ITEM);
	break;
	case 10: /* ENTER */
	case 27: /* ESCAPE */
	case ' ':
	case KEY_F(F_BACK):
	case KEY_F(F_EXIT):
	break;
	}
	touchwin(win);
	refresh_all_windows(main_window);

	if (res == 10 \|\| res == ' ') {
	res = item_index(current_item(menu));
	break;
	} else if (res == 27 \|\| res == KEY_F(F_BACK) \|\|
	res == KEY_F(F_EXIT)) {
	res = KEY_EXIT;
	break;
	}
	}

	unpost_menu(menu);
	free_menu(menu);
	for (i = 0; i < btn_num; i++)
	free_item(btns[i]);

	delwin(win);
	return res;
	}

	int dialog_inputbox(WINDOW *main_window,
	const char title, const char prompt,
	const char init, char resultp, int result_len)
	{
	int prompt_lines = 0;
	int prompt_width = 0;
	WINDOW *win;
	WINDOW *prompt_win;
	WINDOW *form_win;
	PANEL *panel;
	int i, x, y;
	int res = -1;
	int cursor_position = strlen(init);
	int cursor_form_win;
	char result = resultp;

	if (strlen(init)+1 > *result_len) {
	*result_len = strlen(init)+1;
	resultp = result = realloc(result, result_len);
	}

	/* find the widest line of msg: */
	prompt_lines = get_line_no(prompt);
	for (i = 0; i < prompt_lines; i++) {
	const char *line = get_line(prompt, i);
	int len = get_line_length(line);
	prompt_width = max(prompt_width, len);
	}

	if (title)
	prompt_width = max(prompt_width, strlen(title));

	/* place dialog in middle of screen */
	y = (LINES-(prompt_lines+4))/2;
	x = (COLS-(prompt_width+4))/2;

	strncpy(result, init, *result_len);

	/* create the windows */
	win = newwin(prompt_lines+6, prompt_width+7, y, x);
	prompt_win = derwin(win, prompt_lines+1, prompt_width, 2, 2);
	form_win = derwin(win, 1, prompt_width, prompt_lines+3, 2);
	keypad(form_win, TRUE);

	(void) wattrset(form_win, attributes[INPUT_FIELD]);

	(void) wattrset(win, attributes[INPUT_BOX]);
	box(win, 0, 0);
	(void) wattrset(win, attributes[INPUT_HEADING]);
	if (title)
	mvwprintw(win, 0, 3, "%s", title);

	/* print message */
	(void) wattrset(prompt_win, attributes[INPUT_TEXT]);
	fill_window(prompt_win, prompt);

	mvwprintw(form_win, 0, 0, "%*s", prompt_width, " ");
	cursor_form_win = min(cursor_position, prompt_width-1);
	mvwprintw(form_win, 0, 0, "%s",
	result + cursor_position-cursor_form_win);

	/* create panels */
	panel = new_panel(win);

	/* show the cursor */
	curs_set(1);

	touchwin(win);
	refresh_all_windows(main_window);
	while ((res = wgetch(form_win))) {
	int len = strlen(result);
	switch (res) {
	case 10: /* ENTER */
	case 27: /* ESCAPE */
	case KEY_F(F_HELP):
	case KEY_F(F_EXIT):
	case KEY_F(F_BACK):
	break;
	case 127:
	case KEY_BACKSPACE:
	if (cursor_position > 0) {
	memmove(&result[cursor_position-1],
	&result[cursor_position],
	len-cursor_position+1);
	cursor_position--;
	cursor_form_win--;
	len--;
	}
	break;
	case KEY_DC:
	if (cursor_position >= 0 && cursor_position < len) {
	memmove(&result[cursor_position],
	&result[cursor_position+1],
	len-cursor_position+1);
	len--;
	}
	break;
	case KEY_UP:
	case KEY_RIGHT:
	if (cursor_position < len) {
	cursor_position++;
	cursor_form_win++;
	}
	break;
	case KEY_DOWN:
	case KEY_LEFT:
	if (cursor_position > 0) {
	cursor_position--;
	cursor_form_win--;
	}
	break;
	case KEY_HOME:
	cursor_position = 0;
	cursor_form_win = 0;
	break;
	case KEY_END:
	cursor_position = len;
	cursor_form_win = min(cursor_position, prompt_width-1);
	break;
	default:
	if ((isgraph(res) \|\| isspace(res))) {
	/* one for new char, one for '\0' */
	if (len+2 > *result_len) {
	*result_len = len+2;
	*resultp = result = realloc(result,
	*result_len);
	}
	/* insert the char at the proper position */
	memmove(&result[cursor_position+1],
	&result[cursor_position],
	len-cursor_position+1);
	result[cursor_position] = res;
	cursor_position++;
	cursor_form_win++;
	len++;
	} else {
	mvprintw(0, 0, "unknown key: %d\n", res);
	}
	break;
	}
	if (cursor_form_win < 0)
	cursor_form_win = 0;
	else if (cursor_form_win > prompt_width-1)
	cursor_form_win = prompt_width-1;

	wmove(form_win, 0, 0);
	wclrtoeol(form_win);
	mvwprintw(form_win, 0, 0, "%*s", prompt_width, " ");
	mvwprintw(form_win, 0, 0, "%s",
	result + cursor_position-cursor_form_win);
	wmove(form_win, 0, cursor_form_win);
	touchwin(win);
	refresh_all_windows(main_window);

	if (res == 10) {
	res = 0;
	break;
	} else if (res == 27 \|\| res == KEY_F(F_BACK) \|\|
	res == KEY_F(F_EXIT)) {
	res = KEY_EXIT;
	break;
	} else if (res == KEY_F(F_HELP)) {
	res = 1;
	break;
	}
	}

	/* hide the cursor */
	curs_set(0);
	del_panel(panel);
	delwin(prompt_win);
	delwin(form_win);
	delwin(win);
	return res;
	}

	/* refresh all windows in the correct order */
	void refresh_all_windows(WINDOW *main_window)
	{
	update_panels();
	touchwin(main_window);
	refresh();
	}

	/* layman's scrollable window... */
	void show_scroll_win(WINDOW *main_window,
	const char *title,
	const char *text)
	{
	int res;
	int total_lines = get_line_no(text);
	int x, y;
	int start_x = 0, start_y = 0;
	int text_lines = 0, text_cols = 0;
	int total_cols = 0;
	int win_cols = 0;
	int win_lines = 0;
	int i = 0;
	WINDOW *win;
	WINDOW *pad;
	PANEL *panel;

	/* find the widest line of msg: */
	total_lines = get_line_no(text);
	for (i = 0; i < total_lines; i++) {
	const char *line = get_line(text, i);
	int len = get_line_length(line);
	total_cols = max(total_cols, len+2);
	}

	/* create the pad */
	pad = newpad(total_lines+10, total_cols+10);
	(void) wattrset(pad, attributes[SCROLLWIN_TEXT]);
	fill_window(pad, text);

	win_lines = min(total_lines+4, LINES-2);
	win_cols = min(total_cols+2, COLS-2);
	text_lines = max(win_lines-4, 0);
	text_cols = max(win_cols-2, 0);

	/* place window in middle of screen */
	y = (LINES-win_lines)/2;
	x = (COLS-win_cols)/2;

	win = newwin(win_lines, win_cols, y, x);
	keypad(win, TRUE);
	/* show the help in the help window, and show the help panel */
	(void) wattrset(win, attributes[SCROLLWIN_BOX]);
	box(win, 0, 0);
	(void) wattrset(win, attributes[SCROLLWIN_HEADING]);
	mvwprintw(win, 0, 3, " %s ", title);
	panel = new_panel(win);

	/* handle scrolling */
	do {

	copywin(pad, win, start_y, start_x, 2, 2, text_lines,
	text_cols, 0);
	print_in_middle(win,
	text_lines+2,
	0,
	text_cols,
	"<OK>",
	attributes[DIALOG_MENU_FORE]);
	wrefresh(win);

	res = wgetch(win);
	switch (res) {
	case KEY_NPAGE:
	case ' ':
	case 'd':
	start_y += text_lines-2;
	break;
	case KEY_PPAGE:
	case 'u':
	start_y -= text_lines+2;
	break;
	case KEY_HOME:
	start_y = 0;
	break;
	case KEY_END:
	start_y = total_lines-text_lines;
	break;
	case KEY_DOWN:
	case 'j':
	start_y++;
	break;
	case KEY_UP:
	case 'k':
	start_y--;
	break;
	case KEY_LEFT:
	case 'h':
	start_x--;
	break;
	case KEY_RIGHT:
	case 'l':
	start_x++;
	break;
	}
	if (res == 10 \|\| res == 27 \|\| res == 'q' \|\|
	res == KEY_F(F_HELP) \|\| res == KEY_F(F_BACK) \|\|
	res == KEY_F(F_EXIT))
	break;
	if (start_y < 0)
	start_y = 0;
	if (start_y >= total_lines-text_lines)
	start_y = total_lines-text_lines;
	if (start_x < 0)
	start_x = 0;
	if (start_x >= total_cols-text_cols)
	start_x = total_cols-text_cols;
	} while (res);

	del_panel(panel);
	delwin(win);
	refresh_all_windows(main_window);
	}