1 | /*
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2 | * yesno.c -- implements the yes/no box
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3 | *
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4 | * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
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5 | * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
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6 | *
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7 | * This program is free software; you can redistribute it and/or
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8 | * modify it under the terms of the GNU General Public License
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9 | * as published by the Free Software Foundation; either version 2
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10 | * of the License, or (at your option) any later version.
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11 | *
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12 | * This program is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with this program; if not, write to the Free Software
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19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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20 | */
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21 |
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22 | #include "dialog.h"
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23 |
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24 | /*
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25 | * Display termination buttons
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26 | */
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27 | static void print_buttons(WINDOW * dialog, int height, int width, int selected)
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28 | {
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29 | int x = width / 2 - 10;
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30 | int y = height - 2;
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31 |
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32 | print_button(dialog, " Yes ", y, x, selected == 0);
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33 | print_button(dialog, " No ", y, x + 13, selected == 1);
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34 |
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35 | wmove(dialog, y, x + 1 + 13 * selected);
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36 | wrefresh(dialog);
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37 | }
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38 |
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39 | /*
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40 | * Display a dialog box with two buttons - Yes and No
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41 | */
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42 | int dialog_yesno(const char *title, const char *prompt, int height, int width)
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43 | {
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44 | int i, x, y, key = 0, button = 0;
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45 | WINDOW *dialog;
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46 |
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47 | /* center dialog box on screen */
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48 | x = (COLS - width) / 2;
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49 | y = (LINES - height) / 2;
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50 |
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51 | draw_shadow(stdscr, y, x, height, width);
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52 |
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53 | dialog = newwin(height, width, y, x);
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54 | keypad(dialog, TRUE);
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55 |
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56 | draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
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57 | wattrset(dialog, border_attr);
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58 | mvwaddch(dialog, height - 3, 0, ACS_LTEE);
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59 | for (i = 0; i < width - 2; i++)
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60 | waddch(dialog, ACS_HLINE);
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61 | wattrset(dialog, dialog_attr);
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62 | waddch(dialog, ACS_RTEE);
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63 |
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64 | print_title(dialog, title, width);
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65 |
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66 | wattrset(dialog, dialog_attr);
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67 | print_autowrap(dialog, prompt, width - 2, 1, 3);
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68 |
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69 | print_buttons(dialog, height, width, 0);
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70 |
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71 | while (key != ESC) {
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72 | key = wgetch(dialog);
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73 | switch (key) {
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74 | case 'Y':
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75 | case 'y':
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76 | delwin(dialog);
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77 | return 0;
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78 | case 'N':
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79 | case 'n':
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80 | delwin(dialog);
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81 | return 1;
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82 |
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83 | case TAB:
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84 | case KEY_LEFT:
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85 | case KEY_RIGHT:
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86 | button = ((key == KEY_LEFT ? --button : ++button) < 0) ? 1 : (button > 1 ? 0 : button);
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87 |
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88 | print_buttons(dialog, height, width, button);
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89 | wrefresh(dialog);
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90 | break;
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91 | case ' ':
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92 | case '\n':
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93 | delwin(dialog);
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94 | return button;
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95 | case ESC:
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96 | break;
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97 | }
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98 | }
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99 |
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100 | delwin(dialog);
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101 | return -1; /* ESC pressed */
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102 | }
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