[linux-2.6-block.git] / scripts / kconfig / nconf.gui.c

/*
 * 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_YELLOW, -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 = (getmaxy(stdscr)-(msg_lines+4))/2;
	x = (getmaxx(stdscr)-(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 = (getmaxy(stdscr)-(prompt_lines+4))/2;
	x = (getmaxx(stdscr)-(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, lines, columns;
	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;

	getmaxyx(stdscr, lines, columns);

	/* 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, columns-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 = (columns-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);
}
Commit	Line	Data
692d97c3	1	/*
	2	* Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com?
	3	* Released under the terms of the GNU GPL v2.0.
	4	*
	5	* Derived from menuconfig.
	6	*
	7	*/
	8	#include "nconf.h"
	9
	10	/* a list of all the different widgets we use */
	11	attributes_t attributes[ATTR_MAX+1] = {0};
	12
	13	/* available colors:
	14	COLOR_BLACK 0
	15	COLOR_RED 1
	16	COLOR_GREEN 2
	17	COLOR_YELLOW 3
	18	COLOR_BLUE 4
	19	COLOR_MAGENTA 5
	20	COLOR_CYAN 6
	21	COLOR_WHITE 7
	22	*/
851190c9	23	static void set_normal_colors(void)
692d97c3	24	{
	25	init_pair(NORMAL, -1, -1);
	26	init_pair(MAIN_HEADING, COLOR_MAGENTA, -1);
	27
	28	/* FORE is for the selected item */
	29	init_pair(MAIN_MENU_FORE, -1, -1);
	30	/* BACK for all the rest */
	31	init_pair(MAIN_MENU_BACK, -1, -1);
	32	init_pair(MAIN_MENU_GREY, -1, -1);
	33	init_pair(MAIN_MENU_HEADING, COLOR_GREEN, -1);
	34	init_pair(MAIN_MENU_BOX, COLOR_YELLOW, -1);
	35
	36	init_pair(SCROLLWIN_TEXT, -1, -1);
	37	init_pair(SCROLLWIN_HEADING, COLOR_GREEN, -1);
	38	init_pair(SCROLLWIN_BOX, COLOR_YELLOW, -1);
	39
	40	init_pair(DIALOG_TEXT, -1, -1);
	41	init_pair(DIALOG_BOX, COLOR_YELLOW, -1);
	42	init_pair(DIALOG_MENU_BACK, COLOR_YELLOW, -1);
	43	init_pair(DIALOG_MENU_FORE, COLOR_RED, -1);
	44
	45	init_pair(INPUT_BOX, COLOR_YELLOW, -1);
	46	init_pair(INPUT_HEADING, COLOR_GREEN, -1);
	47	init_pair(INPUT_TEXT, -1, -1);
	48	init_pair(INPUT_FIELD, -1, -1);
	49
	50	init_pair(FUNCTION_HIGHLIGHT, -1, -1);
c5ffa130	51	init_pair(FUNCTION_TEXT, COLOR_YELLOW, -1);
692d97c3	52	}
	53
	54	/* available attributes:
	55	A_NORMAL Normal display (no highlight)
	56	A_STANDOUT Best highlighting mode of the terminal.
	57	A_UNDERLINE Underlining
	58	A_REVERSE Reverse video
	59	A_BLINK Blinking
	60	A_DIM Half bright
	61	A_BOLD Extra bright or bold
	62	A_PROTECT Protected mode
	63	A_INVIS Invisible or blank mode
	64	A_ALTCHARSET Alternate character set
	65	A_CHARTEXT Bit-mask to extract a character
	66	COLOR_PAIR(n) Color-pair number n
	67	*/
851190c9	68	static void normal_color_theme(void)
692d97c3	69	{
	70	/* automatically add color... */
	71	#define mkattr(name, attr) do { \
	72	attributes[name] = attr \| COLOR_PAIR(name); } while (0)
	73	mkattr(NORMAL, NORMAL);
	74	mkattr(MAIN_HEADING, A_BOLD \| A_UNDERLINE);
	75
	76	mkattr(MAIN_MENU_FORE, A_REVERSE);
	77	mkattr(MAIN_MENU_BACK, A_NORMAL);
	78	mkattr(MAIN_MENU_GREY, A_NORMAL);
	79	mkattr(MAIN_MENU_HEADING, A_BOLD);
	80	mkattr(MAIN_MENU_BOX, A_NORMAL);
	81
	82	mkattr(SCROLLWIN_TEXT, A_NORMAL);
	83	mkattr(SCROLLWIN_HEADING, A_BOLD);
	84	mkattr(SCROLLWIN_BOX, A_BOLD);
	85
	86	mkattr(DIALOG_TEXT, A_BOLD);
	87	mkattr(DIALOG_BOX, A_BOLD);
	88	mkattr(DIALOG_MENU_FORE, A_STANDOUT);
	89	mkattr(DIALOG_MENU_BACK, A_NORMAL);
	90
	91	mkattr(INPUT_BOX, A_NORMAL);
	92	mkattr(INPUT_HEADING, A_BOLD);
	93	mkattr(INPUT_TEXT, A_NORMAL);
	94	mkattr(INPUT_FIELD, A_UNDERLINE);
	95
	96	mkattr(FUNCTION_HIGHLIGHT, A_BOLD);
	97	mkattr(FUNCTION_TEXT, A_REVERSE);
	98	}
	99
851190c9	100	static void no_colors_theme(void)
692d97c3	101	{
	102	/* automatically add highlight, no color */
	103	#define mkattrn(name, attr) { attributes[name] = attr; }
	104
	105	mkattrn(NORMAL, NORMAL);
	106	mkattrn(MAIN_HEADING, A_BOLD \| A_UNDERLINE);
	107
	108	mkattrn(MAIN_MENU_FORE, A_STANDOUT);
	109	mkattrn(MAIN_MENU_BACK, A_NORMAL);
	110	mkattrn(MAIN_MENU_GREY, A_NORMAL);
	111	mkattrn(MAIN_MENU_HEADING, A_BOLD);
	112	mkattrn(MAIN_MENU_BOX, A_NORMAL);
	113
	114	mkattrn(SCROLLWIN_TEXT, A_NORMAL);
	115	mkattrn(SCROLLWIN_HEADING, A_BOLD);
	116	mkattrn(SCROLLWIN_BOX, A_BOLD);
	117
	118	mkattrn(DIALOG_TEXT, A_NORMAL);
	119	mkattrn(DIALOG_BOX, A_BOLD);
	120	mkattrn(DIALOG_MENU_FORE, A_STANDOUT);
	121	mkattrn(DIALOG_MENU_BACK, A_NORMAL);
	122
	123	mkattrn(INPUT_BOX, A_BOLD);
	124	mkattrn(INPUT_HEADING, A_BOLD);
	125	mkattrn(INPUT_TEXT, A_NORMAL);
	126	mkattrn(INPUT_FIELD, A_UNDERLINE);
	127
	128	mkattrn(FUNCTION_HIGHLIGHT, A_BOLD);
	129	mkattrn(FUNCTION_TEXT, A_REVERSE);
	130	}
	131
	132	void set_colors()
	133	{
	134	start_color();
	135	use_default_colors();
	136	set_normal_colors();
	137	if (has_colors()) {
	138	normal_color_theme();
	139	} else {
c24035b9	140	/* give defaults */
692d97c3	141	no_colors_theme();
	142	}
	143	}
	144
	145
	146	/* this changes the windows attributes !!! */
	147	void print_in_middle(WINDOW *win,
	148	int starty,
	149	int startx,
	150	int width,
	151	const char *string,
	152	chtype color)
	153	{ int length, x, y;
	154	float temp;
	155
	156
	157	if (win == NULL)
	158	win = stdscr;
	159	getyx(win, y, x);
	160	if (startx != 0)
	161	x = startx;
	162	if (starty != 0)
	163	y = starty;
	164	if (width == 0)
	165	width = 80;
	166
	167	length = strlen(string);
	168	temp = (width - length) / 2;
	169	x = startx + (int)temp;
a72f3e2b	170	(void) wattrset(win, color);
692d97c3	171	mvwprintw(win, y, x, "%s", string);
	172	refresh();
	173	}
	174
	175	int get_line_no(const char *text)
	176	{
	177	int i;
	178	int total = 1;
	179
	180	if (!text)
	181	return 0;
	182
	183	for (i = 0; text[i] != '\0'; i++)
	184	if (text[i] == '\n')
	185	total++;
	186	return total;
	187	}
	188
	189	const char get_line(const char text, int line_no)
	190	{
	191	int i;
	192	int lines = 0;
	193
	194	if (!text)
	195	return 0;
	196
	197	for (i = 0; text[i] != '\0' && lines < line_no; i++)
	198	if (text[i] == '\n')
	199	lines++;
	200	return text+i;
	201	}
	202
	203	int get_line_length(const char *line)
	204	{
	205	int res = 0;
	206	while (line != '\0' && line != '\n') {
	207	line++;
	208	res++;
	209	}
	210	return res;
	211	}
	212
	213	/* print all lines to the window. */
	214	void fill_window(WINDOW win, const char text)
	215	{
	216	int x, y;
	217	int total_lines = get_line_no(text);
	218	int i;
	219
	220	getmaxyx(win, y, x);
	221	/* do not go over end of line */
	222	total_lines = min(total_lines, y);
	223	for (i = 0; i < total_lines; i++) {
	224	char tmp[x+10];
	225	const char *line = get_line(text, i);
	226	int len = get_line_length(line);
	227	strncpy(tmp, line, min(len, x));
	228	tmp[len] = '\0';
58f915a3	229	mvwprintw(win, i, 0, "%s", tmp);
692d97c3	230	}
	231	}
	232
	233	/* get the message, and buttons.
	234	* each button must be a char*
	235	* return the selected button
	236	*
	237	* this dialog is used for 2 different things:
	238	* 1) show a text box, no buttons.
	239	* 2) show a dialog, with horizontal buttons
	240	*/
	241	int btn_dialog(WINDOW main_window, const char msg, int btn_num, ...)
	242	{
	243	va_list ap;
	244	char *btn;
	245	int btns_width = 0;
	246	int msg_lines = 0;
	247	int msg_width = 0;
	248	int total_width;
	249	int win_rows = 0;
	250	WINDOW *win;
	251	WINDOW *msg_win;
	252	WINDOW *menu_win;
	253	MENU *menu;
	254	ITEM *btns[btn_num+1];
	255	int i, x, y;
	256	int res = -1;
	257
	258
	259	va_start(ap, btn_num);
	260	for (i = 0; i < btn_num; i++) {
	261	btn = va_arg(ap, char *);
	262	btns[i] = new_item(btn, "");
	263	btns_width += strlen(btn)+1;
	264	}
	265	va_end(ap);
	266	btns[btn_num] = NULL;
	267
	268	/* find the widest line of msg: */
	269	msg_lines = get_line_no(msg);
	270	for (i = 0; i < msg_lines; i++) {
	271	const char *line = get_line(msg, i);
	272	int len = get_line_length(line);
	273	if (msg_width < len)
	274	msg_width = len;
	275	}
	276
	277	total_width = max(msg_width, btns_width);
	278	/* place dialog in middle of screen */
e0b42605 DG	279	y = (getmaxy(stdscr)-(msg_lines+4))/2;
e0b42605 DG	280	x = (getmaxx(stdscr)-(total_width+4))/2;
692d97c3	281
	282
	283	/* create the windows */
	284	if (btn_num > 0)
	285	win_rows = msg_lines+4;
	286	else
	287	win_rows = msg_lines+2;
	288
	289	win = newwin(win_rows, total_width+4, y, x);
	290	keypad(win, TRUE);
	291	menu_win = derwin(win, 1, btns_width, win_rows-2,
	292	1+(total_width+2-btns_width)/2);
	293	menu = new_menu(btns);
	294	msg_win = derwin(win, win_rows-2, msg_width, 1,
	295	1+(total_width+2-msg_width)/2);
	296
	297	set_menu_fore(menu, attributes[DIALOG_MENU_FORE]);
	298	set_menu_back(menu, attributes[DIALOG_MENU_BACK]);
	299
a72f3e2b	300	(void) wattrset(win, attributes[DIALOG_BOX]);
692d97c3	301	box(win, 0, 0);
	302
	303	/* print message */
a72f3e2b	304	(void) wattrset(msg_win, attributes[DIALOG_TEXT]);
692d97c3	305	fill_window(msg_win, msg);
	306
	307	set_menu_win(menu, win);
	308	set_menu_sub(menu, menu_win);
	309	set_menu_format(menu, 1, btn_num);
	310	menu_opts_off(menu, O_SHOWDESC);
	311	menu_opts_off(menu, O_SHOWMATCH);
	312	menu_opts_on(menu, O_ONEVALUE);
	313	menu_opts_on(menu, O_NONCYCLIC);
	314	set_menu_mark(menu, "");
	315	post_menu(menu);
	316
	317
	318	touchwin(win);
	319	refresh_all_windows(main_window);
	320	while ((res = wgetch(win))) {
	321	switch (res) {
	322	case KEY_LEFT:
	323	menu_driver(menu, REQ_LEFT_ITEM);
	324	break;
	325	case KEY_RIGHT:
	326	menu_driver(menu, REQ_RIGHT_ITEM);
	327	break;
	328	case 10: /* ENTER */
	329	case 27: /* ESCAPE */
	330	case ' ':
	331	case KEY_F(F_BACK):
	332	case KEY_F(F_EXIT):
	333	break;
	334	}
	335	touchwin(win);
	336	refresh_all_windows(main_window);
	337
	338	if (res == 10 \|\| res == ' ') {
	339	res = item_index(current_item(menu));
	340	break;
	341	} else if (res == 27 \|\| res == KEY_F(F_BACK) \|\|
	342	res == KEY_F(F_EXIT)) {
	343	res = KEY_EXIT;
	344	break;
	345	}
	346	}
	347
	348	unpost_menu(menu);
	349	free_menu(menu);
	350	for (i = 0; i < btn_num; i++)
	351	free_item(btns[i]);
	352
	353	delwin(win);
	354	return res;
	355	}
	356
	357	int dialog_inputbox(WINDOW *main_window,
	358	const char title, const char prompt,
5ea9f64f	359	const char init, char resultp, int result_len)
692d97c3	360	{
	361	int prompt_lines = 0;
	362	int prompt_width = 0;
	363	WINDOW *win;
	364	WINDOW *prompt_win;
	365	WINDOW *form_win;
	366	PANEL *panel;
	367	int i, x, y;
	368	int res = -1;
	369	int cursor_position = strlen(init);
e631a57a	370	int cursor_form_win;
5ea9f64f	371	char result = resultp;
692d97c3	372
5ea9f64f CR	373	if (strlen(init)+1 > *result_len) {
	374	*result_len = strlen(init)+1;
	375	resultp = result = realloc(result, result_len);
	376	}
692d97c3	377
	378	/* find the widest line of msg: */
	379	prompt_lines = get_line_no(prompt);
	380	for (i = 0; i < prompt_lines; i++) {
	381	const char *line = get_line(prompt, i);
	382	int len = get_line_length(line);
	383	prompt_width = max(prompt_width, len);
	384	}
	385
	386	if (title)
	387	prompt_width = max(prompt_width, strlen(title));
	388
	389	/* place dialog in middle of screen */
e0b42605 DG	390	y = (getmaxy(stdscr)-(prompt_lines+4))/2;
e0b42605 DG	391	x = (getmaxx(stdscr)-(prompt_width+4))/2;
692d97c3	392
5ea9f64f	393	strncpy(result, init, *result_len);
692d97c3	394
	395	/* create the windows */
	396	win = newwin(prompt_lines+6, prompt_width+7, y, x);
	397	prompt_win = derwin(win, prompt_lines+1, prompt_width, 2, 2);
	398	form_win = derwin(win, 1, prompt_width, prompt_lines+3, 2);
	399	keypad(form_win, TRUE);
	400
a72f3e2b	401	(void) wattrset(form_win, attributes[INPUT_FIELD]);
692d97c3	402
a72f3e2b	403	(void) wattrset(win, attributes[INPUT_BOX]);
692d97c3	404	box(win, 0, 0);
a72f3e2b	405	(void) wattrset(win, attributes[INPUT_HEADING]);
692d97c3	406	if (title)
	407	mvwprintw(win, 0, 3, "%s", title);
	408
	409	/* print message */
a72f3e2b	410	(void) wattrset(prompt_win, attributes[INPUT_TEXT]);
692d97c3	411	fill_window(prompt_win, prompt);
	412
	413	mvwprintw(form_win, 0, 0, "%*s", prompt_width, " ");
e631a57a CR	414	cursor_form_win = min(cursor_position, prompt_width-1);
	415	mvwprintw(form_win, 0, 0, "%s",
	416	result + cursor_position-cursor_form_win);
692d97c3	417
	418	/* create panels */
	419	panel = new_panel(win);
	420
	421	/* show the cursor */
	422	curs_set(1);
	423
	424	touchwin(win);
	425	refresh_all_windows(main_window);
	426	while ((res = wgetch(form_win))) {
	427	int len = strlen(result);
	428	switch (res) {
	429	case 10: /* ENTER */
	430	case 27: /* ESCAPE */
	431	case KEY_F(F_HELP):
	432	case KEY_F(F_EXIT):
	433	case KEY_F(F_BACK):
	434	break;
	435	case 127:
	436	case KEY_BACKSPACE:
	437	if (cursor_position > 0) {
	438	memmove(&result[cursor_position-1],
	439	&result[cursor_position],
	440	len-cursor_position+1);
	441	cursor_position--;
e631a57a CR	442	cursor_form_win--;
e631a57a CR	443	len--;
692d97c3	444	}
	445	break;
	446	case KEY_DC:
	447	if (cursor_position >= 0 && cursor_position < len) {
	448	memmove(&result[cursor_position],
	449	&result[cursor_position+1],
	450	len-cursor_position+1);
e631a57a	451	len--;
692d97c3	452	}
	453	break;
	454	case KEY_UP:
	455	case KEY_RIGHT:
e631a57a	456	if (cursor_position < len) {
692d97c3	457	cursor_position++;
e631a57a CR	458	cursor_form_win++;
e631a57a CR	459	}
692d97c3	460	break;
	461	case KEY_DOWN:
	462	case KEY_LEFT:
e631a57a	463	if (cursor_position > 0) {
692d97c3	464	cursor_position--;
e631a57a CR	465	cursor_form_win--;
e631a57a CR	466	}
692d97c3	467	break;
93072c3e CR	468	case KEY_HOME:
	469	cursor_position = 0;
	470	cursor_form_win = 0;
	471	break;
	472	case KEY_END:
	473	cursor_position = len;
	474	cursor_form_win = min(cursor_position, prompt_width-1);
	475	break;
692d97c3	476	default:
5ea9f64f CR	477	if ((isgraph(res) \|\| isspace(res))) {
	478	/* one for new char, one for '\0' */
	479	if (len+2 > *result_len) {
	480	*result_len = len+2;
	481	*resultp = result = realloc(result,
	482	*result_len);
	483	}
692d97c3	484	/* insert the char at the proper position */
	485	memmove(&result[cursor_position+1],
	486	&result[cursor_position],
cd58a90f	487	len-cursor_position+1);
692d97c3	488	result[cursor_position] = res;
692d97c3	489	cursor_position++;
e631a57a CR	490	cursor_form_win++;
e631a57a CR	491	len++;
692d97c3	492	} else {
4e24dbfc	493	mvprintw(0, 0, "unknown key: %d\n", res);
692d97c3	494	}
	495	break;
	496	}
e631a57a CR	497	if (cursor_form_win < 0)
	498	cursor_form_win = 0;
	499	else if (cursor_form_win > prompt_width-1)
	500	cursor_form_win = prompt_width-1;
	501
692d97c3	502	wmove(form_win, 0, 0);
	503	wclrtoeol(form_win);
	504	mvwprintw(form_win, 0, 0, "%*s", prompt_width, " ");
e631a57a CR	505	mvwprintw(form_win, 0, 0, "%s",
	506	result + cursor_position-cursor_form_win);
	507	wmove(form_win, 0, cursor_form_win);
692d97c3	508	touchwin(win);
	509	refresh_all_windows(main_window);
	510
	511	if (res == 10) {
	512	res = 0;
	513	break;
	514	} else if (res == 27 \|\| res == KEY_F(F_BACK) \|\|
	515	res == KEY_F(F_EXIT)) {
	516	res = KEY_EXIT;
	517	break;
	518	} else if (res == KEY_F(F_HELP)) {
	519	res = 1;
	520	break;
	521	}
	522	}
	523
	524	/* hide the cursor */
	525	curs_set(0);
	526	del_panel(panel);
	527	delwin(prompt_win);
	528	delwin(form_win);
	529	delwin(win);
	530	return res;
	531	}
	532
	533	/* refresh all windows in the correct order */
	534	void refresh_all_windows(WINDOW *main_window)
	535	{
	536	update_panels();
	537	touchwin(main_window);
	538	refresh();
	539	}
	540
	541	/* layman's scrollable window... */
	542	void show_scroll_win(WINDOW *main_window,
	543	const char *title,
	544	const char *text)
	545	{
	546	int res;
	547	int total_lines = get_line_no(text);
e0b42605	548	int x, y, lines, columns;
692d97c3	549	int start_x = 0, start_y = 0;
	550	int text_lines = 0, text_cols = 0;
	551	int total_cols = 0;
	552	int win_cols = 0;
	553	int win_lines = 0;
	554	int i = 0;
	555	WINDOW *win;
	556	WINDOW *pad;
	557	PANEL *panel;
	558
e0b42605 DG	559	getmaxyx(stdscr, lines, columns);
e0b42605 DG	560
692d97c3	561	/* find the widest line of msg: */
	562	total_lines = get_line_no(text);
	563	for (i = 0; i < total_lines; i++) {
	564	const char *line = get_line(text, i);
	565	int len = get_line_length(line);
	566	total_cols = max(total_cols, len+2);
	567	}
	568
	569	/* create the pad */
	570	pad = newpad(total_lines+10, total_cols+10);
a72f3e2b	571	(void) wattrset(pad, attributes[SCROLLWIN_TEXT]);
692d97c3	572	fill_window(pad, text);
692d97c3	573
e0b42605 DG	574	win_lines = min(total_lines+4, lines-2);
e0b42605 DG	575	win_cols = min(total_cols+2, columns-2);
692d97c3	576	text_lines = max(win_lines-4, 0);
	577	text_cols = max(win_cols-2, 0);
	578
	579	/* place window in middle of screen */
e0b42605 DG	580	y = (lines-win_lines)/2;
e0b42605 DG	581	x = (columns-win_cols)/2;
692d97c3	582
	583	win = newwin(win_lines, win_cols, y, x);
	584	keypad(win, TRUE);
	585	/* show the help in the help window, and show the help panel */
a72f3e2b	586	(void) wattrset(win, attributes[SCROLLWIN_BOX]);
692d97c3	587	box(win, 0, 0);
a72f3e2b	588	(void) wattrset(win, attributes[SCROLLWIN_HEADING]);
692d97c3	589	mvwprintw(win, 0, 3, " %s ", title);
	590	panel = new_panel(win);
	591
	592	/* handle scrolling */
	593	do {
	594
	595	copywin(pad, win, start_y, start_x, 2, 2, text_lines,
	596	text_cols, 0);
	597	print_in_middle(win,
	598	text_lines+2,
	599	0,
	600	text_cols,
	601	"<OK>",
	602	attributes[DIALOG_MENU_FORE]);
	603	wrefresh(win);
	604
	605	res = wgetch(win);
	606	switch (res) {
	607	case KEY_NPAGE:
	608	case ' ':
d68e818b	609	case 'd':
692d97c3	610	start_y += text_lines-2;
	611	break;
	612	case KEY_PPAGE:
d68e818b	613	case 'u':
692d97c3	614	start_y -= text_lines+2;
	615	break;
	616	case KEY_HOME:
	617	start_y = 0;
	618	break;
	619	case KEY_END:
	620	start_y = total_lines-text_lines;
	621	break;
	622	case KEY_DOWN:
	623	case 'j':
	624	start_y++;
	625	break;
	626	case KEY_UP:
	627	case 'k':
	628	start_y--;
	629	break;
	630	case KEY_LEFT:
	631	case 'h':
	632	start_x--;
	633	break;
	634	case KEY_RIGHT:
	635	case 'l':
	636	start_x++;
	637	break;
	638	}
d68e818b BP	639	if (res == 10 \|\| res == 27 \|\| res == 'q' \|\|
	640	res == KEY_F(F_HELP) \|\| res == KEY_F(F_BACK) \|\|
	641	res == KEY_F(F_EXIT))
692d97c3	642	break;
692d97c3	643	if (start_y < 0)
	644	start_y = 0;
	645	if (start_y >= total_lines-text_lines)
	646	start_y = total_lines-text_lines;
	647	if (start_x < 0)
	648	start_x = 0;
	649	if (start_x >= total_cols-text_cols)
	650	start_x = total_cols-text_cols;
	651	} while (res);
	652
	653	del_panel(panel);
	654	delwin(win);
	655	refresh_all_windows(main_window);
	656	}