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Linux Cross Reference
Linux/scripts/lxdialog/msgbox.c

Version: ~ [ 2.4.0 ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  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 }
 86 

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