yann@1: /*
yann@1:  *  yesno.c -- implements the yes/no box
yann@1:  *
yann@1:  *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
yann@1:  *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
yann@1:  *
yann@1:  *  This program is free software; you can redistribute it and/or
yann@1:  *  modify it under the terms of the GNU General Public License
yann@1:  *  as published by the Free Software Foundation; either version 2
yann@1:  *  of the License, or (at your option) any later version.
yann@1:  *
yann@1:  *  This program is distributed in the hope that it will be useful,
yann@1:  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
yann@1:  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
yann@1:  *  GNU General Public License for more details.
yann@1:  *
yann@1:  *  You should have received a copy of the GNU General Public License
yann@1:  *  along with this program; if not, write to the Free Software
yann@1:  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
yann@1:  */
yann@1: 
yann@1: #include "dialog.h"
yann@1: 
yann@1: /*
yann@1:  * Display termination buttons
yann@1:  */
yann@1: static void print_buttons(WINDOW * dialog, int height, int width, int selected)
yann@1: {
yann@1: 	int x = width / 2 - 10;
yann@1: 	int y = height - 2;
yann@1: 
yann@943: 	print_button(dialog, gettext(" Yes "), y, x, selected == 0);
yann@943: 	print_button(dialog, gettext("  No  "), y, x + 13, selected == 1);
yann@1: 
yann@1: 	wmove(dialog, y, x + 1 + 13 * selected);
yann@1: 	wrefresh(dialog);
yann@1: }
yann@1: 
yann@1: /*
yann@1:  * Display a dialog box with two buttons - Yes and No
yann@1:  */
yann@1: int dialog_yesno(const char *title, const char *prompt, int height, int width)
yann@1: {
yann@1: 	int i, x, y, key = 0, button = 0;
yann@1: 	WINDOW *dialog;
yann@1: 
yann@1: do_resize:
yann@1: 	if (getmaxy(stdscr) < (height + 4))
yann@1: 		return -ERRDISPLAYTOOSMALL;
yann@1: 	if (getmaxx(stdscr) < (width + 4))
yann@1: 		return -ERRDISPLAYTOOSMALL;
yann@1: 
yann@1: 	/* center dialog box on screen */
yann@1: 	x = (COLS - width) / 2;
yann@1: 	y = (LINES - height) / 2;
yann@1: 
yann@1: 	draw_shadow(stdscr, y, x, height, width);
yann@1: 
yann@1: 	dialog = newwin(height, width, y, x);
yann@1: 	keypad(dialog, TRUE);
yann@1: 
yann@1: 	draw_box(dialog, 0, 0, height, width,
yann@1: 		 dlg.dialog.atr, dlg.border.atr);
yann@1: 	wattrset(dialog, dlg.border.atr);
yann@1: 	mvwaddch(dialog, height - 3, 0, ACS_LTEE);
yann@1: 	for (i = 0; i < width - 2; i++)
yann@1: 		waddch(dialog, ACS_HLINE);
yann@1: 	wattrset(dialog, dlg.dialog.atr);
yann@1: 	waddch(dialog, ACS_RTEE);
yann@1: 
yann@1: 	print_title(dialog, title, width);
yann@1: 
yann@1: 	wattrset(dialog, dlg.dialog.atr);
yann@1: 	print_autowrap(dialog, prompt, width - 2, 1, 3);
yann@1: 
yann@1: 	print_buttons(dialog, height, width, 0);
yann@1: 
yann@1: 	while (key != KEY_ESC) {
yann@1: 		key = wgetch(dialog);
yann@1: 		switch (key) {
yann@1: 		case 'Y':
yann@1: 		case 'y':
yann@1: 			delwin(dialog);
yann@1: 			return 0;
yann@1: 		case 'N':
yann@1: 		case 'n':
yann@1: 			delwin(dialog);
yann@1: 			return 1;
yann@1: 
yann@1: 		case TAB:
yann@1: 		case KEY_LEFT:
yann@1: 		case KEY_RIGHT:
yann@1: 			button = ((key == KEY_LEFT ? --button : ++button) < 0) ? 1 : (button > 1 ? 0 : button);
yann@1: 
yann@1: 			print_buttons(dialog, height, width, button);
yann@1: 			wrefresh(dialog);
yann@1: 			break;
yann@1: 		case ' ':
yann@1: 		case '\n':
yann@1: 			delwin(dialog);
yann@1: 			return button;
yann@1: 		case KEY_ESC:
yann@1: 			key = on_key_esc(dialog);
yann@1: 			break;
yann@1: 		case KEY_RESIZE:
yann@1: 			delwin(dialog);
yann@1: 			on_key_resize();
yann@1: 			goto do_resize;
yann@1: 		}
yann@1: 	}
yann@1: 
yann@1: 	delwin(dialog);
yann@1: 	return key;		/* ESC pressed */
yann@1: }