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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
* Added backtitle option
* - Version 0.4 released.
*
* 10/10/94 - Patches by Marc Ewing - marc@redhat.com
* Added --separate-output
* Added init val to inputbox
* Added guage widget
*/
#define __DIALOG_MAIN__
#include "dialog.h"
#ifdef HAVE_NCURSES
#include "colors.h"
#endif
static char *backtitle = NULL;
int separate_output = 0;
int main(int argc, char *argv[])
{
int offset = 0, clear_screen = 0, end_common_opts = 0, retval;
char *title = NULL;
#if defined(LOCALE)
(void) setlocale(LC_ALL, "");
#endif
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);
}
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], "--backtitle" ))
{
if (backtitle != NULL)
{
Usage(argv[0]);
exit(-1);
}
else
{
backtitle = argv[offset+2];
offset += 2;
}
}
else if (!strcmp(argv[offset+1], "--separate-output" ))
{
separate_output = 1;
offset++;
}
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();
refresh(); /* init_dialog() will clear the screen for us */
endwin();
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]));
if (clear_screen) { /* clear screen before exit */
attr_clear(stdscr, LINES, COLS, screen_attr);
refresh();
}
endwin();
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);
if (clear_screen) { /* clear screen before exit */
attr_clear(stdscr, LINES, COLS, screen_attr);
refresh();
}
endwin();
return 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);
if (clear_screen) { /* clear screen before exit */
attr_clear(stdscr, LINES, COLS, screen_attr);
refresh();
}
endwin();
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]));
if (clear_screen) { /* clear screen before exit */
attr_clear(stdscr, LINES, COLS, screen_attr);
refresh();
}
endwin();
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);
if (clear_screen) { /* clear screen before exit */
attr_clear(stdscr, LINES, COLS, screen_attr);
refresh();
}
endwin();
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);
if (clear_screen) { /* clear screen before exit */
attr_clear(stdscr, LINES, COLS, screen_attr);
refresh();
}
endwin();
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);
if (clear_screen) { /* clear screen before exit */
attr_clear(stdscr, LINES, COLS, screen_attr);
refresh();
}
endwin();
return retval;
}
else if (!strcmp(argv[offset+1], "--guage")) {
if (argc-offset != 6) {
Usage(argv[0]);
exit(-1);
}
init_dialog();
retval = dialog_guage(title, argv[offset+2],
atoi(argv[offset+3]), atoi(argv[offset+4]),
atoi(argv[offset+5]));
if (clear_screen) { /* clear screen before exit */
attr_clear(stdscr, LINES, COLS, screen_attr);
refresh();
}
endwin();
return retval;
}
else if (!strcmp(argv[offset+1], "--inputbox")) {
if (argc-offset < 5 || argc-offset > 6) {
Usage(argv[0]);
exit(-1);
}
init_dialog();
retval = dialog_inputbox(title, argv[offset+2], atoi(argv[offset+3]),
atoi(argv[offset+4]),
(argc-offset == 6) ? argv[offset+5] : (char *)NULL);
if (clear_screen) { /* clear screen before exit */
attr_clear(stdscr, LINES, COLS, screen_attr);
refresh();
}
endwin();
return retval;
}
Usage(argv[0]);
exit(-1);
}
/* End of main() */
/*
* Print program usage
*/
void Usage(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\
\n* Display dialog boxes from shell scripts *\
\n\
\nUsage: %s --clear\
\n %s --create-rc <file>\
\n %s [--title <title>] [--separate-output] [--backtitle <backtitle>] [--clear] <Box options>\
\n\
\nBox options:\
\n\
\n --yesno <text> <height> <width>\
\n --msgbox <text> <height> <width>\
\n --infobox <text> <height> <width>\
\n --inputbox <text> <height> <width> [<init>]\
\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 --guage <text> <height> <width> <percent>\n", VERSION, name, name, name);
}
/* End of Usage() */
/*
* Do some initialization for dialog
*/
void init_dialog(void)
{
int i;
#ifdef HAVE_NCURSES
if (parse_rc() == -1) /* Read the configuration file */
exit(-1);
#endif
initscr(); /* Init curses */
keypad(stdscr, TRUE);
cbreak();
noecho();
#ifdef HAVE_NCURSES
if (use_colors || use_shadow) /* Set up colors */
color_setup();
#endif
/* Set screen to screen attribute */
attr_clear(stdscr, LINES, COLS, screen_attr);
/* Display background title if it exists ... - SLH */
if (backtitle != NULL)
{
wattrset(stdscr, screen_attr);
wmove(stdscr, 0, 1);
waddstr(stdscr,backtitle);
wmove(stdscr, 1, 1);
for(i=1; i<COLS-1; i++)
waddch(stdscr, ACS_HLINE);
}
wnoutrefresh(stdscr);
}
/* End of init_dialog() */
#ifdef HAVE_NCURSES
/*
* Setup for color display
*/
void color_setup(void)
{
int i;
if (has_colors()) { /* Terminal supports color? */
start_color();
/* Initialize color pairs */
for (i = 0; i < ATTRIBUTE_COUNT; i++)
init_pair(i+1, color_table[i][0], color_table[i][1]);
/* Setup color attributes */
for (i = 0; i < ATTRIBUTE_COUNT; i++)
attributes[i] = C_ATTR(color_table[i][2], i+1);
}
}
/* End of color_setup() */
#endif
/*
* Set window to attribute 'attr'
*/
void attr_clear(WINDOW *win, int height, int width, chtype attr)
{
/* ifdef HAVE_NCURSES
wattrset(win, attr); Set window to attribute 'attr'
werase(win);
else */
int i, j;
wattrset(win, attr); /* Set window to attribute 'attr' */
for (i = 0; i < height; i++) {
wmove(win, i, 0);
for (j = 0; j < width; j++)
waddch(win, ' ');
}
touchwin(win);
/* endif */
}
/* End of attr_clear() */
/*
* Print a string of text in a window, automatically wrap around to the
* next line if the string is too long to fit on one line. Note that the
* string may contain "\n" to represent a newline character or the real
* newline '\n', but in that case, auto wrap around will be disabled.
*/
void print_autowrap(WINDOW *win, char *prompt, int width, int y, int x)
{
int first = 1, cur_x, cur_y;
char tempstr[MAX_LEN+1], *word, *tempptr, *tempptr1;
strcpy(tempstr, prompt);
if ((strstr(tempstr, "\\n") != NULL) ||
(strchr(tempstr, '\n') != NULL)) { /* Prompt contains "\n" or '\n' */
word = tempstr;
cur_y = y;
wmove(win, cur_y, x);
while (1) {
tempptr = strstr(word, "\\n");
tempptr1 = strchr(word, '\n');
if (tempptr == NULL && tempptr1 == NULL)
break;
else if (tempptr == NULL) { /* No more "\n" */
tempptr = tempptr1;
tempptr[0] = '\0';
}
else if (tempptr1 == NULL) { /* No more '\n' */
tempptr[0] = '\0';
tempptr++;
}
else { /* Prompt contains both "\n" and '\n' */
if (strlen(tempptr)-2 < strlen(tempptr1)-1) {
tempptr = tempptr1;
tempptr[0] = '\0';
}
else {
tempptr[0] = '\0';
tempptr++;
}
}
waddstr(win, word);
word = tempptr + 1;
wmove(win, ++cur_y, x);
}
waddstr(win, word);
}
else if (strlen(tempstr) <= width-x*2) { /* If prompt is short */
wmove(win, y, (width - strlen(tempstr)) / 2);
waddstr(win, tempstr);
}
else {
cur_x = x;
cur_y = y;
/* Print prompt word by word, wrap around if necessary */
while ((word = strtok(first ? tempstr : NULL, " ")) != NULL) {
if (first) /* First iteration */
first = 0;
if (cur_x+strlen(word) > width) { /* wrap around to next line */
cur_y++;
cur_x = x;
}
wmove(win, cur_y, cur_x);
waddstr(win, word);
getyx(win, cur_y, cur_x);
cur_x++;
}
}
}
/* End of print_autowrap() */
/*
* Print a button
*/
void print_button(WINDOW *win, char *label, int y, int x, int selected)
{
int i, temp;
wmove(win, y, x);
wattrset(win, selected ? button_active_attr : button_inactive_attr);
waddstr(win, "<");
temp = strspn(label, " ");
label += temp;
wattrset(win, selected ? button_label_active_attr : button_label_inactive_attr);
for (i = 0; i < temp; i++)
waddch(win, ' ');
wattrset(win, selected ? button_key_active_attr : button_key_inactive_attr);
waddch(win, label[0]);
wattrset(win, selected ? button_label_active_attr : button_label_inactive_attr);
waddstr(win, label+1);
wattrset(win, selected ? button_active_attr : button_inactive_attr);
waddstr(win, ">");
wmove(win, y, x+temp+1);
}
/* End of print_button() */
/*
* Draw a rectangular box with line drawing characters
*/
void draw_box(WINDOW *win, int y, int x, int height, int width, chtype box, chtype border)
{
int i, j;
wattrset(win, 0);
for (i = 0; i < height; i++) {
wmove(win, y + i, x);
for (j = 0; j < width; j++)
if (!i && !j)
waddch(win, border | ACS_ULCORNER);
else if (i == height-1 && !j)
waddch(win, border | ACS_LLCORNER);
else if (!i && j == width-1)
waddch(win, box | ACS_URCORNER);
else if (i == height-1 && j == width-1)
waddch(win, box | ACS_LRCORNER);
else if (!i)
waddch(win, border | ACS_HLINE);
else if (i == height-1)
waddch(win, box | ACS_HLINE);
else if (!j)
waddch(win, border | ACS_VLINE);
else if (j == width-1)
waddch(win, box | ACS_VLINE);
else
waddch(win, box | ' ');
}
}
/* End of draw_box() */
#ifdef HAVE_NCURSES
/*
* Draw shadows along the right and bottom edge to give a more 3D look
* to the boxes
*/
void draw_shadow(WINDOW *win, int y, int x, int height, int width)
{
int i;
if (has_colors()) { /* Whether terminal supports color? */
wattrset(win, shadow_attr);
wmove(win, y + height, x + 2);
for (i = 0; i < width; i++)
waddch(win, winch(win) & A_CHARTEXT);
for (i = y + 1; i < y + height + 1; i++) {
wmove(win, i, x + width);
waddch(win, winch(win) & A_CHARTEXT);
waddch(win, winch(win) & A_CHARTEXT);
}
wnoutrefresh(win);
}
}
/* End of draw_shadow() */
#endif
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