// SPDX-License-Identifier: GPL-2.0+/* *  util.c * *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk) *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com) */ #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.title.atr = A_BOLD;	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.position_indicator.atr = A_BOLD;	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(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_WHITE,  COLOR_BLACK, false); 	DLG_COLOR(inputbox,         COLOR_YELLOW, COLOR_BLACK, false); 	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(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.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){	int lines, columns; 	lines = getmaxy(stdscr);	columns = getmaxx(stdscr); 	attr_clear(stdscr, lines, columns, 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 > columns - 2) {			const char *ellipsis = "[...] ";			waddstr(stdscr, ellipsis);			skip = len - (columns - 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 < columns - 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 < WINDOW_HEIGHT_MIN || width < WINDOW_WIDTH_MIN) {		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 properly processed.  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 prompt_len, room, wlen;	char tempstr[MAX_LEN + 1], *word, *sp, *sp2, *newline_separator = 0; 	snprintf(tempstr, sizeof(tempstr), "%s", prompt);	prompt_len = strlen(tempstr); 	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 = strpbrk(word, "\n ");			if (sp && *sp == '\n')				newline_separator = sp; 			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 = strpbrk(sp, "\n "))				 || 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); 			/* Move to the next line if the word separator was a newline */			if (newline_separator) {				cur_y++;				cur_x = x;				newline_separator = 0;			} else				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 */voiddraw_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)

Lines 1–500 of 672. Load more