scripts/lxdialog/msgbox.c

   1 /*
   2  *  msgbox.c -- implements the message box and info box
   3  *
   4  *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
   5  *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcapw@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 a message box. Program will pause and display an "OK" button
  26  * if the parameter 'pause' is non-zero.
  27  */
  28 int dialog_msgbox(const char *title, const char *prompt, int height, int width,
  29                   int pause)
  30 {
  31         int i, x, y, key = 0;
  32         WINDOW *dialog;
  33
  34         /* center dialog box on screen */
  35         x = (COLS - width) / 2;
  36         y = (LINES - height) / 2;
  37
  38         draw_shadow(stdscr, y, x, height, width);
  39
  40         dialog = newwin(height, width, y, x);
  41         keypad(dialog, TRUE);
  42
  43         draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
  44
  45         if (title != NULL && strlen(title) >= width - 2) {
  46                 /* truncate long title -- mec */
  47                 char *title2 = malloc(width - 2 + 1);
  48                 memcpy(title2, title, width - 2);
  49                 title2[width - 2] = '\0';
  50                 title = title2;
  51         }
  52
  53         if (title != NULL) {
  54                 wattrset(dialog, title_attr);
  55                 mvwaddch(dialog, 0, (width - strlen(title)) / 2 - 1, ' ');
  56                 waddstr(dialog, (char *)title);
  57                 waddch(dialog, ' ');
  58         }
  59         wattrset(dialog, dialog_attr);
  60         print_autowrap(dialog, prompt, width - 2, 1, 2);
  61
  62         if (pause) {
  63                 wattrset(dialog, border_attr);
  64                 mvwaddch(dialog, height - 3, 0, ACS_LTEE);
  65                 for (i = 0; i < width - 2; i++)
  66                         waddch(dialog, ACS_HLINE);
  67                 wattrset(dialog, dialog_attr);
  68                 waddch(dialog, ACS_RTEE);
  69
  70                 print_button(dialog, "  Ok  ", height - 2, width / 2 - 4, TRUE);
  71
  72                 wrefresh(dialog);
  73                 while (key != ESC && key != '\n' && key != ' ' &&
  74                        key != 'O' && key != 'o' && key != 'X' && key != 'x')
  75                         key = wgetch(dialog);
  76         } else {
  77                 key = '\n';
  78                 wrefresh(dialog);
  79         }
  80
  81         delwin(dialog);
  82         return key == ESC ? -1 : 0;
  83 }