blob: 84f3e8e005e41efe913421852c9fc1493592a41e [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * yesno.c -- implements the yes/no box
3 *
4 * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
5 * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22#include "dialog.h"
23
24/*
25 * Display termination buttons
26 */
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +010027static void print_buttons(WINDOW * dialog, int height, int width, int selected)
Linus Torvalds1da177e2005-04-16 15:20:36 -070028{
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +010029 int x = width / 2 - 10;
30 int y = height - 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -070031
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +010032 print_button(dialog, " Yes ", y, x, selected == 0);
33 print_button(dialog, " No ", y, x + 13, selected == 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -070034
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +010035 wmove(dialog, y, x + 1 + 13 * selected);
36 wrefresh(dialog);
Linus Torvalds1da177e2005-04-16 15:20:36 -070037}
38
39/*
40 * Display a dialog box with two buttons - Yes and No
41 */
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +010042int dialog_yesno(const char *title, const char *prompt, int height, int width)
Linus Torvalds1da177e2005-04-16 15:20:36 -070043{
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +010044 int i, x, y, key = 0, button = 0;
45 WINDOW *dialog;
Linus Torvalds1da177e2005-04-16 15:20:36 -070046
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +010047 /* center dialog box on screen */
48 x = (COLS - width) / 2;
49 y = (LINES - height) / 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -070050
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +010051 draw_shadow(stdscr, y, x, height, width);
Linus Torvalds1da177e2005-04-16 15:20:36 -070052
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +010053 dialog = newwin(height, width, y, x);
54 keypad(dialog, TRUE);
Linus Torvalds1da177e2005-04-16 15:20:36 -070055
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +010056 draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
57 wattrset(dialog, border_attr);
58 mvwaddch(dialog, height - 3, 0, ACS_LTEE);
59 for (i = 0; i < width - 2; i++)
60 waddch(dialog, ACS_HLINE);
61 wattrset(dialog, dialog_attr);
62 waddch(dialog, ACS_RTEE);
Linus Torvalds1da177e2005-04-16 15:20:36 -070063
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +010064 if (title != NULL && strlen(title) >= width - 2) {
65 /* truncate long title -- mec */
66 char *title2 = malloc(width - 2 + 1);
67 memcpy(title2, title, width - 2);
68 title2[width - 2] = '\0';
69 title = title2;
Linus Torvalds1da177e2005-04-16 15:20:36 -070070 }
Linus Torvalds1da177e2005-04-16 15:20:36 -070071
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +010072 if (title != NULL) {
73 wattrset(dialog, title_attr);
74 mvwaddch(dialog, 0, (width - strlen(title)) / 2 - 1, ' ');
75 waddstr(dialog, (char *)title);
76 waddch(dialog, ' ');
77 }
78
79 wattrset(dialog, dialog_attr);
80 print_autowrap(dialog, prompt, width - 2, 1, 3);
81
82 print_buttons(dialog, height, width, 0);
83
84 while (key != ESC) {
85 key = wgetch(dialog);
86 switch (key) {
87 case 'Y':
88 case 'y':
89 delwin(dialog);
90 return 0;
91 case 'N':
92 case 'n':
93 delwin(dialog);
94 return 1;
95
96 case TAB:
97 case KEY_LEFT:
98 case KEY_RIGHT:
Sam Ravnborgdec69da2005-11-19 21:56:20 +010099 button = ((key == KEY_LEFT ? --button : ++button) < 0) ? 1 : (button > 1 ? 0 : button);
Sam Ravnborgb1c5f1c2005-11-19 19:13:34 +0100100
101 print_buttons(dialog, height, width, button);
102 wrefresh(dialog);
103 break;
104 case ' ':
105 case '\n':
106 delwin(dialog);
107 return button;
108 case ESC:
109 break;
110 }
111 }
112
113 delwin(dialog);
114 return -1; /* ESC pressed */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115}