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/*
* yesno.c -- implements the yes/no box
*
* AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
*
* 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 <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <dialog.h>
#include "dialog.priv.h"
/* Actual work function */
static int dialog_yesno_proc(unsigned char *title, unsigned char *prompt,
int height, int width, int yesdefault);
/*
* Display a dialog box with two buttons - Yes and No
*/
int
dialog_yesno(unsigned char *title, unsigned char *prompt, int height, int width)
{
return dialog_yesno_proc(title, prompt, height, width, TRUE);
}
/*
* Display a dialog box with two buttons - No and Yes
*/
int
dialog_noyes(unsigned char *title, unsigned char *prompt, int height, int width)
{
return dialog_yesno_proc(title, prompt, height, width, FALSE);
}
static int
dialog_yesno_proc(unsigned char *title, unsigned char *prompt, int height, int width, int yesdefault)
{
int i, j, x, y, key, button;
WINDOW *dialog;
char *tmphlp;
/* disable helpline */
tmphlp = get_helpline();
use_helpline(NULL);
if (height < 0)
height = strheight(prompt)+4;
if (width < 0) {
i = strwidth(prompt);
j = ((title != NULL) ? strwidth(title) : 0);
width = MAX(i,j)+4;
}
width = MAX(width,23);
if (width > COLS)
width = COLS;
if (height > LINES)
height = LINES;
/* center dialog box on screen */
x = DialogX ? DialogX : (COLS - width)/2;
y = DialogY ? DialogY : (LINES - height)/2;
#ifdef HAVE_NCURSES
if (use_shadow)
draw_shadow(stdscr, y, x, height, width);
#endif
dialog = newwin(height, width, y, x);
if (dialog == NULL) {
endwin();
fprintf(stderr, "\nnewwin(%d,%d,%d,%d) failed, maybe wrong dims\n", height,width,y,x);
exit(1);
}
keypad(dialog, TRUE);
draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
wattrset(dialog, border_attr);
wmove(dialog, height-3, 0);
waddch(dialog, ACS_LTEE);
for (i = 0; i < width-2; i++)
waddch(dialog, ACS_HLINE);
wattrset(dialog, dialog_attr);
waddch(dialog, ACS_RTEE);
wmove(dialog, height-2, 1);
for (i = 0; i < width-2; i++)
waddch(dialog, ' ');
if (title != NULL) {
wattrset(dialog, title_attr);
wmove(dialog, 0, (width - strlen(title))/2 - 1);
waddch(dialog, ' ');
waddstr(dialog, title);
waddch(dialog, ' ');
}
wattrset(dialog, dialog_attr);
wmove(dialog, 1, 2);
print_autowrap(dialog, prompt, height-1, width-2, width, 1, 2, TRUE, FALSE);
display_helpline(dialog, height-1, width);
x = width/2-10;
y = height-2;
/* preset button 0 or 1 for YES or NO as the default */
key = 0;
button = !yesdefault;
while (key != ESC) {
print_button(dialog, " No ", y, x+13, button);
print_button(dialog, " Yes " , y, x, !button);
if (button)
wmove(dialog, y, x+16);
else
wmove(dialog, y, x+2);
wrefresh(dialog);
key = wgetch(dialog);
switch (key) {
case 'Y':
case 'y':
delwin(dialog);
restore_helpline(tmphlp);
return 0;
case 'N':
case 'n':
delwin(dialog);
restore_helpline(tmphlp);
return 1;
case KEY_BTAB:
case TAB:
case KEY_UP:
case KEY_DOWN:
case KEY_LEFT:
case KEY_RIGHT:
button = !button;
/* redrawn at the loop's entry */
break;
case ' ':
case '\r':
case '\n':
delwin(dialog);
restore_helpline(tmphlp);
return button;
case ESC:
break;
case KEY_F(1):
case '?':
display_helpfile();
break;
}
}
delwin(dialog);
restore_helpline(tmphlp);
return -1; /* ESC pressed */
}
/* End of dialog_yesno() */
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