Contents of /alx-src/tags/kernel26-2.6.12-alx-r9/scripts/lxdialog/yesno.c
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Wed Mar 4 11:03:09 2009 UTC (15 years, 3 months ago) by niro
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Wed Mar 4 11:03:09 2009 UTC (15 years, 3 months ago) by niro
File MIME type: text/plain
File size: 3067 byte(s)
Tag kernel26-2.6.12-alx-r9
1 | /* |
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 | */ |
27 | static void |
28 | print_buttons(WINDOW *dialog, int height, int width, int selected) |
29 | { |
30 | int x = width / 2 - 10; |
31 | int y = height - 2; |
32 | |
33 | print_button (dialog, " Yes ", y, x, selected == 0); |
34 | print_button (dialog, " No ", y, x + 13, selected == 1); |
35 | |
36 | wmove(dialog, y, x+1 + 13*selected ); |
37 | wrefresh (dialog); |
38 | } |
39 | |
40 | /* |
41 | * Display a dialog box with two buttons - Yes and No |
42 | */ |
43 | int |
44 | dialog_yesno (const char *title, const char *prompt, int height, int width) |
45 | { |
46 | int i, x, y, key = 0, button = 0; |
47 | WINDOW *dialog; |
48 | |
49 | /* center dialog box on screen */ |
50 | x = (COLS - width) / 2; |
51 | y = (LINES - height) / 2; |
52 | |
53 | draw_shadow (stdscr, y, x, height, width); |
54 | |
55 | dialog = newwin (height, width, y, x); |
56 | keypad (dialog, TRUE); |
57 | |
58 | draw_box (dialog, 0, 0, height, width, dialog_attr, border_attr); |
59 | wattrset (dialog, border_attr); |
60 | mvwaddch (dialog, height-3, 0, ACS_LTEE); |
61 | for (i = 0; i < width - 2; i++) |
62 | waddch (dialog, ACS_HLINE); |
63 | wattrset (dialog, dialog_attr); |
64 | waddch (dialog, ACS_RTEE); |
65 | |
66 | if (title != NULL && strlen(title) >= width-2 ) { |
67 | /* truncate long title -- mec */ |
68 | char * title2 = malloc(width-2+1); |
69 | memcpy( title2, title, width-2 ); |
70 | title2[width-2] = '\0'; |
71 | title = title2; |
72 | } |
73 | |
74 | if (title != NULL) { |
75 | wattrset (dialog, title_attr); |
76 | mvwaddch (dialog, 0, (width - strlen(title))/2 - 1, ' '); |
77 | waddstr (dialog, (char *)title); |
78 | waddch (dialog, ' '); |
79 | } |
80 | |
81 | wattrset (dialog, dialog_attr); |
82 | print_autowrap (dialog, prompt, width - 2, 1, 3); |
83 | |
84 | print_buttons(dialog, height, width, 0); |
85 | |
86 | while (key != ESC) { |
87 | key = wgetch (dialog); |
88 | switch (key) { |
89 | case 'Y': |
90 | case 'y': |
91 | delwin (dialog); |
92 | return 0; |
93 | case 'N': |
94 | case 'n': |
95 | delwin (dialog); |
96 | return 1; |
97 | |
98 | case TAB: |
99 | case KEY_LEFT: |
100 | case KEY_RIGHT: |
101 | button = ((key == KEY_LEFT ? --button : ++button) < 0) |
102 | ? 1 : (button > 1 ? 0 : button); |
103 | |
104 | print_buttons(dialog, height, width, button); |
105 | wrefresh (dialog); |
106 | break; |
107 | case ' ': |
108 | case '\n': |
109 | delwin (dialog); |
110 | return button; |
111 | case ESC: |
112 | break; |
113 | } |
114 | } |
115 | |
116 | delwin (dialog); |
117 | return -1; /* ESC pressed */ |
118 | } |