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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