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freebsd/gnu/usr.bin/dialog/dialog.c
Rodney W. Grimes 4399be3cbd Remove trailing whitespace.
1995-05-30 05:05:38 +00:00

373 lines
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/*
* dialog - Display simple dialog boxes from shell scripts
*
* AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*
* HISTORY:
*
* 17/12/93 - Version 0.1 released.
*
* 19/12/93 - menu will now scroll if there are more items than can fit
* on the screen.
* - added 'checklist', a dialog box with a list of options that
* can be turned on or off. A list of options that are on is
* returned on exit.
*
* 20/12/93 - Version 0.15 released.
*
* 29/12/93 - Incorporated patch from Patrick J. Volkerding
* (volkerdi@mhd1.moorhead.msus.edu) that made these changes:
* - increased MAX_LEN to 2048
* - added 'infobox', equivalent to a message box without pausing
* - added option '--clear' that will clear the screen
* - Explicit line breaking when printing prompt text can be
* invoked by real newline '\n' besides the string "\n"
* - an optional parameter '--title <string>' can be used to
* specify a title string for the dialog box
*
* 03/01/94 - added 'textbox', a dialog box for displaying text from a file.
* - Version 0.2 released.
*
* 04/01/94 - some fixes and improvements for 'textbox':
* - fixed a bug that will cause a segmentation violation when a
* line is longer than MAX_LEN characters. Lines will now be
* truncated if they are longer than MAX_LEN characters.
* - removed wrefresh() from print_line(). This will increase
* efficiency of print_page() which calls print_line().
* - display current position in the form of percentage into file.
* - Version 0.21 released.
*
* 05/01/94 - some changes for faster screen update.
*
* 07/01/94 - much more flexible color settings. Can use all 16 colors
* (8 normal, 8 highlight) of the Linux console.
*
* 08/01/94 - added run-time configuration using configuration file.
*
* 09/01/94 - some minor bug fixes and cleanups for menubox, checklist and
* textbox.
*
* 11/01/94 - added a man page.
*
* 13/01/94 - some changes for easier porting to other Unix systems (tested
* on Ultrix, SunOS and HPUX)
* - Version 0.3 released.
*
* 08/06/94 - Patches by Stuart Herbert - S.Herbert@shef.ac.uk
* Fixed attr_clear and the textbox stuff to work with ncurses 1.8.5
* Fixed the wordwrap routine - it'll actually wrap properly now
* Added a more 3D look to everything - having your own rc file could
* prove 'interesting' to say the least :-)
* Added radiolist option
* - Version 0.4 released.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/wait.h>
#include <dialog.h>
void Usage(unsigned char *name);
int main(int argc, unsigned char *argv[])
{
int offset = 0, clear_screen = 0, end_common_opts = 0, retval;
unsigned char *title = NULL;
unsigned char result[MAX_LEN];
char *hline = NULL, *hfile = NULL;
if (argc < 2) {
Usage(argv[0]);
exit(-1);
}
else if (!strcmp(argv[1], "--create-rc")) {
#ifdef HAVE_NCURSES
if (argc != 3) {
Usage(argv[0]);
exit(-1);
}
dialog_create_rc(argv[2]);
return 0;
#else
fprintf(stderr, "\nThis option is currently unsupported on your system.\n");
return -1;
#endif
}
while (offset < argc-1 && !end_common_opts) { /* Common options */
if (!strcmp(argv[offset+1], "--title")) {
if (argc-offset < 3 || title != NULL) { /* No two "--title" please! */
Usage(argv[0]);
exit(-1);
}
else {
title = argv[offset+2];
offset += 2;
}
}
else if (!strcmp(argv[offset+1], "--hline")) {
if (argc-offset < 3 || hline != NULL) { /* No two "--hline" please! */
Usage(argv[0]);
exit(-1);
}
else {
hline = argv[offset+2];
use_helpline(hline);
offset += 2;
}
}
else if (!strcmp(argv[offset+1], "--hfile")) {
if (argc-offset < 3 || hfile != NULL) { /* No two "--hfile" please! */
Usage(argv[0]);
exit(-1);
}
else {
hfile = argv[offset+2];
use_helpfile(hfile);
offset += 2;
}
}
else if (!strcmp(argv[offset+1], "--clear")) {
if (clear_screen) { /* Hey, "--clear" can't appear twice! */
Usage(argv[0]);
exit(-1);
}
else if (argc == 2) { /* we only want to clear the screen */
init_dialog();
dialog_update(); /* init_dialog() will clear the screen for us */
end_dialog();
return 0;
}
else {
clear_screen = 1;
offset++;
}
}
else /* no more common options */
end_common_opts = 1;
}
if (argc-1 == offset) { /* no more options */
Usage(argv[0]);
exit(-1);
}
/* Box options */
if (!strcmp(argv[offset+1], "--yesno")) {
if (argc-offset != 5) {
Usage(argv[0]);
exit(-1);
}
init_dialog();
retval = dialog_yesno(title, argv[offset+2], atoi(argv[offset+3]),
atoi(argv[offset+4]));
dialog_update();
if (clear_screen) /* clear screen before exit */
dialog_clear();
end_dialog();
return retval;
}
else if (!strcmp(argv[offset+1], "--msgbox")) {
if (argc-offset != 5) {
Usage(argv[0]);
exit(-1);
}
init_dialog();
retval = dialog_msgbox(title, argv[offset+2], atoi(argv[offset+3]),
atoi(argv[offset+4]), 1);
dialog_update();
if (clear_screen) /* clear screen before exit */
dialog_clear();
end_dialog();
return retval;
}
else if (!strcmp(argv[offset+1], "--prgbox")) {
if (argc-offset != 5) {
Usage(argv[0]);
exit(-1);
}
init_dialog();
retval = dialog_prgbox(title, argv[offset+2], atoi(argv[offset+3]),
atoi(argv[offset+4]), TRUE, TRUE);
dialog_update();
if (clear_screen) /* clear screen before exit */
dialog_clear();
end_dialog();
return WEXITSTATUS(retval);
}
else if (!strcmp(argv[offset+1], "--infobox")) {
if (argc-offset != 5) {
Usage(argv[0]);
exit(-1);
}
init_dialog();
retval = dialog_msgbox(title, argv[offset+2], atoi(argv[offset+3]),
atoi(argv[offset+4]), 0);
dialog_update();
if (clear_screen) /* clear screen before exit */
dialog_clear();
end_dialog();
return retval;
}
else if (!strcmp(argv[offset+1], "--textbox")) {
if (argc-offset != 5) {
Usage(argv[0]);
exit(-1);
}
init_dialog();
retval = dialog_textbox(title, argv[offset+2], atoi(argv[offset+3]),
atoi(argv[offset+4]));
dialog_update();
if (clear_screen) /* clear screen before exit */
dialog_clear();
end_dialog();
return retval;
}
else if (!strcmp(argv[offset+1], "--menu")) {
if (argc-offset < 8 || ((argc-offset) % 2)) {
Usage(argv[0]);
exit(-1);
}
init_dialog();
retval = dialog_menu(title, argv[offset+2], atoi(argv[offset+3]),
atoi(argv[offset+4]), atoi(argv[offset+5]),
(argc-offset-6)/2, argv+offset + 6, result,
NULL, NULL);
dialog_update();
if (retval == 0)
fputs(result, stderr);
if (clear_screen) /* clear screen before exit */
dialog_clear();
end_dialog();
return retval;
}
else if (!strcmp(argv[offset+1], "--checklist")) {
if (argc-offset < 9 || ((argc-offset-6) % 3)) {
Usage(argv[0]);
exit(-1);
}
init_dialog();
retval = dialog_checklist(title, argv[offset+2], atoi(argv[offset+3]),
atoi(argv[offset+4]), atoi(argv[offset+5]),
(argc-offset-6)/3, argv+offset + 6, result);
dialog_update();
if (retval == 0) {
unsigned char *s, *h; int first;
h = result;
first = 1;
while ((s = strchr(h, '\n')) != NULL) {
*s++ = '\0';
if (!first)
fputc(' ', stderr);
else
first = 0;
fprintf(stderr, "\"%s\"", h);
h = s;
}
}
if (clear_screen) /* clear screen before exit */
dialog_clear();
end_dialog();
return retval;
}
else if (!strcmp(argv[offset+1], "--radiolist")) {
if (argc-offset < 9 || ((argc-offset-6) % 3)) {
Usage(argv[0]);
exit(-1);
}
init_dialog();
retval = dialog_radiolist(title, argv[offset+2], atoi(argv[offset+3]),
atoi(argv[offset+4]), atoi(argv[offset+5]),
(argc-offset-6)/3, argv+offset + 6, result);
dialog_update();
if (retval == 0)
fputs(result, stderr);
if (clear_screen) /* clear screen before exit */
dialog_clear();
end_dialog();
return retval;
}
else if (!strcmp(argv[offset+1], "--inputbox")) {
if (argc-offset != 5 && argc-offset != 6) {
Usage(argv[0]);
exit(-1);
}
if (argc-offset == 6)
strcpy(result, argv[offset+5]);
else
*result = '\0';
init_dialog();
retval = dialog_inputbox(title, argv[offset+2], atoi(argv[offset+3]),
atoi(argv[offset+4]), result);
dialog_update();
if (retval == 0)
fputs(result, stderr);
if (clear_screen) /* clear screen before exit */
dialog_clear();
end_dialog();
return retval;
}
Usage(argv[0]);
exit(-1);
}
/* End of main() */
/*
* Print program usage
*/
void Usage(unsigned char *name)
{
fprintf(stderr, "\
\ndialog version 0.3, by Savio Lam (lam836@cs.cuhk.hk).\
\n patched to version %s by Stuart Herbert (S.Herbert@shef.ac.uk)\
\n Changes Copyright (C) 1995 by Andrey A. Chernov, Moscow, Russia\
\n\
\n* Display dialog boxes from shell scripts *\
\n\
\nUsage: %s --clear\
\n %s --create-rc <file>\
\n %s [--title <title>] [--clear] [--hline <line>] [--hfile <file>]\\\
\n <Box options>\
\n\
\nBox options:\
\n\
\n --yesno <text> <height> <width>\
\n --msgbox <text> <height> <width>\
\n --prgbox \"<command line>\" <height> <width>\
\n --infobox <text> <height> <width>\
\n --inputbox <text> <height> <width> [<init string>]\
\n --textbox <file> <height> <width>\
\n --menu <text> <height> <width> <menu height> <tag1> <item1>...\
\n --checklist <text> <height> <width> <list height> <tag1> <item1> <status1>...\
\n --radiolist <text> <height> <width> <list height> <tag1> <item1> <status1>...\n", VERSION, name, name, name);
}
/* End of Usage() */
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