1 /* 2 * yesno.c -- implements the yes/no box 3 * 4 * ORIGINAL AUTHOR: Savio Lam (lam836 (at) cs.cuhk.hk) 5 * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap (at) 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 print_buttons(WINDOW * dialog, int height, int width, int selected) 28 { 29 int x = width / 2 - 10; 30 int y = height - 2; 31 32 print_button(dialog, " Yes ", y, x, selected == 0); 33 print_button(dialog, " No ", y, x + 13, selected == 1); 34 35 wmove(dialog, y, x + 1 + 13 * selected); 36 wrefresh(dialog); 37 } 38 39 /* 40 * Display a dialog box with two buttons - Yes and No 41 */ 42 int dialog_yesno(const char *title, const char *prompt, int height, int width) 43 { 44 int i, x, y, key = 0, button = 0; 45 WINDOW *dialog; 46 47 do_resize: 48 if (getmaxy(stdscr) < (height + 4)) 49 return -ERRDISPLAYTOOSMALL; 50 if (getmaxx(stdscr) < (width + 4)) 51 return -ERRDISPLAYTOOSMALL; 52 53 /* center dialog box on screen */ 54 x = (COLS - width) / 2; 55 y = (LINES - height) / 2; 56 57 draw_shadow(stdscr, y, x, height, width); 58 59 dialog = newwin(height, width, y, x); 60 keypad(dialog, TRUE); 61 62 draw_box(dialog, 0, 0, height, width, 63 dlg.dialog.atr, dlg.border.atr); 64 wattrset(dialog, dlg.border.atr); 65 mvwaddch(dialog, height - 3, 0, ACS_LTEE); 66 for (i = 0; i < width - 2; i++) 67 waddch(dialog, ACS_HLINE); 68 wattrset(dialog, dlg.dialog.atr); 69 waddch(dialog, ACS_RTEE); 70 71 print_title(dialog, title, width); 72 73 wattrset(dialog, dlg.dialog.atr); 74 print_autowrap(dialog, prompt, width - 2, 1, 3); 75 76 print_buttons(dialog, height, width, 0); 77 78 while (key != KEY_ESC) { 79 key = wgetch(dialog); 80 switch (key) { 81 case 'Y': 82 case 'y': 83 delwin(dialog); 84 return 0; 85 case 'N': 86 case 'n': 87 delwin(dialog); 88 return 1; 89 90 case TAB: 91 case KEY_LEFT: 92 case KEY_RIGHT: 93 button = ((key == KEY_LEFT ? --button : ++button) < 0) ? 1 : (button > 1 ? 0 : button); 94 95 print_buttons(dialog, height, width, button); 96 wrefresh(dialog); 97 break; 98 case ' ': 99 case '\n': 100 delwin(dialog); 101 return button; 102 case KEY_ESC: 103 key = on_key_esc(dialog); 104 break; 105 case KEY_RESIZE: 106 delwin(dialog); 107 on_key_resize(); 108 goto do_resize; 109 } 110 } 111 112 delwin(dialog); 113 return key; /* ESC pressed */ 114 } 115
