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
  29 dialog_msgbox (const char *title, const char *prompt, int height, int width,
  30                 int pause)
  31 {
  32     int i, x, y, key = 0;
  33     WINDOW *dialog;
  34
  35     /* center dialog box on screen */
  36     x = (COLS - width) / 2;
  37     y = (LINES - height) / 2;
  38
  39     draw_shadow (stdscr, y, x, height, width);
  40
  41     dialog = newwin (height, width, y, x);
  42     keypad (dialog, TRUE);
  43
  44     draw_box (dialog, 0, 0, height, width, dialog_attr, border_attr);
  45
  46     if (title != NULL && strlen(title) >= width-2 ) {
  47         /* truncate long title -- mec */
  48         char * title2 = malloc(width-2+1);
  49         memcpy( title2, title, width-2 );
  50         title2[width-2] = '\0';
  51         title = title2;
  52     }
  53
  54     if (title != NULL) {
  55         wattrset (dialog, title_attr);
  56         mvwaddch (dialog, 0, (width - strlen(title))/2 - 1, ' ');
  57         waddstr (dialog, (char *)title);
  58         waddch (dialog, ' ');
  59     }
  60     wattrset (dialog, dialog_attr);
  61     print_autowrap (dialog, prompt, width - 2, 1, 2);
  62
  63     if (pause) {
  64         wattrset (dialog, border_attr);
  65         mvwaddch (dialog, height - 3, 0, ACS_LTEE);
  66         for (i = 0; i < width - 2; i++)
  67             waddch (dialog, ACS_HLINE);
  68         wattrset (dialog, dialog_attr);
  69         waddch (dialog, ACS_RTEE);
  70
  71         print_button (dialog, "  Ok  ",
  72                       height - 2, width / 2 - 4, TRUE);
  73
  74         wrefresh (dialog);
  75         while (key != ESC && key != '\n' && key != ' ' &&
  76                key != 'O' && key != 'o' && key != 'X' && key != 'x')
  77             key = wgetch (dialog);
  78     } else {
  79         key = '\n';
  80         wrefresh (dialog);
  81     }
  82
  83     delwin (dialog);
  84     return key == ESC ? -1 : 0;
  85 }