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FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //compat/linux/proc/self/root/usr/src/gnu/lib/libodialog/kernel.c |
/*
* 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 <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/gnu/lib/libodialog/kernel.c 114603 2003-05-03 21:31:08Z obrien $");
#define __DIALOG_MAIN__
#include <dialog.h>
#include <err.h>
#include "dialog.priv.h"
#ifdef HAVE_NCURSES
#include "colors.h"
#endif
/* These are two "secret" globals that can be fiddled to make a dialog
* come up someplace other than a "centered" calculation for X,Y
*/
int DialogX, DialogY;
/* This "secret" global allows you to change the behavior of an input field */
int DialogInputAttrs;
/*
* Do some initialization for dialog
*/
void init_dialog(void)
{
if (issetugid()) {
errx(1, "libdialog is unsafe to use in setugid applications");
}
#if defined(LOCALE)
(void) setlocale(LC_ALL, "");
#endif
#ifdef HAVE_NCURSES
if (parse_rc() == -1) /* Read the configuration file */
exit(-1);
#endif
if (initscr() == NULL) { /* Init curses */
fprintf(stderr, "\nCurses initialization error.\n");
exit(-1);
}
keypad(stdscr, TRUE);
cbreak();
noecho();
#ifdef HAVE_NCURSES
if (use_colors || use_shadow) /* Set up colors */
color_setup();
#endif
/* Set screen to screen attribute */
dialog_clear_norefresh();
DialogX = DialogY = 0;
}
/* 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)
{
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, ' ');
}
}
/* 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, unsigned char *prompt, int height, int width, int maxwidth, int y, int x, int center, int rawmode)
{
int cur_x, cur_y, i;
unsigned char tempstr[MAX_LEN+1], *word, *tempptr, *tempptr1;
chtype ostuff[132], attrs = 0, init_bottom = 0;
wsetscrreg(win, y, height);
getyx(win, cur_y, cur_x);
strncpy(tempstr, prompt, MAX_LEN);
tempstr[MAX_LEN] = '\0';
if ((!rawmode && strstr(tempstr, "\\n") != NULL) ||
(strchr(tempstr, '\n') != NULL)) { /* Prompt contains "\n" or '\n' */
word = tempstr;
while (1) {
tempptr = rawmode ? NULL : 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;
if (++cur_y > height) {
cur_y--;
if (!init_bottom) {
for (i = 0; i < x; i++)
ostuff[i] = mvwinch(win, cur_y, i);
for (i = width; i < maxwidth; i++)
ostuff[i] = mvwinch(win, cur_y, i);
attrs = getattrs(win);
init_bottom = 1;
}
scrollok(win, TRUE);
scroll(win);
scrollok(win, FALSE);
wmove(win, cur_y, 0);
for (i = 0; i < x; i++) {
wattrset(win, ostuff[i]&A_ATTRIBUTES);
waddch(win, ostuff[i]);
}
wattrset(win, attrs);
for ( ; i < width; i++)
waddch(win, ' ');
for ( ; i < maxwidth; i++) {
wattrset(win, ostuff[i]&A_ATTRIBUTES);
waddch(win, ostuff[i]);
}
wattrset(win, attrs);
wrefresh(win);
}
wmove(win, cur_y, cur_x = x);
}
waddstr(win, word);
}
else if (center && strlen(tempstr) <= width-x*2) { /* If prompt is short */
wmove(win, cur_y, (width - strlen(tempstr)) / 2);
waddstr(win, tempstr);
}
else if (!center && strlen(tempstr) <= width-cur_x) { /* If prompt is short */
waddstr(win, tempstr);
}
else {
char *p = tempstr;
/* Print prompt word by word, wrap around if necessary */
while ((word = strsep(&p, "\t\n ")) != NULL) {
int loop;
unsigned char sc;
if (*word == '\0')
continue;
do {
loop = 0;
if (cur_x+strlen(word) >= width+1) { /* wrap around to next line */
if (x+strlen(word) >= width+1) {
sc = word[width-cur_x-1];
word[width-cur_x-1] = '\0';
wmove(win, cur_y, cur_x);
waddstr(win, word);
word[width-cur_x-1] = sc;
word += width-cur_x-1;
getyx(win, cur_y, cur_x);
loop = 1;
}
cur_y++;
cur_x = x;
if (cur_y > height) {
cur_y--;
if (!init_bottom) {
for (i = 0; i < x; i++)
ostuff[i] = mvwinch(win, cur_y, i);
for (i = width; i < maxwidth; i++)
ostuff[i] = mvwinch(win, cur_y, i);
attrs = getattrs(win);
init_bottom = 1;
}
scrollok(win, TRUE);
scroll(win);
scrollok(win, FALSE);
wmove(win, cur_y, 0);
for (i = 0; i < x; i++) {
wattrset(win, ostuff[i]&A_ATTRIBUTES);
waddch(win, ostuff[i]);
}
wattrset(win, attrs);
for ( ; i < width; i++)
waddch(win, ' ');
for ( ; i < maxwidth; i++) {
wattrset(win, ostuff[i]&A_ATTRIBUTES);
waddch(win, ostuff[i]);
}
wattrset(win, attrs);
wrefresh(win);
}
}
}
while(loop);
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, unsigned 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, selected ? "[" : " ");
temp = strspn(label, " ");
label += temp;
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_active_attr : button_inactive_attr);
waddstr(win, label+1);
waddstr(win, selected ? "]" : " ");
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,sx,sy;
chtype attrs;
if (has_colors()) { /* Whether terminal supports color? */
getbegyx(win,sy,sx);
attrs = getattrs(win);
if (y+height < getmaxy(win)) {
/* small touch */
wattrset(win, A_INVIS);
wmove(win, y + height, x + 2);
for (i = 0; i < width; i++)
if (i+x+2 < getmaxx(win))
waddch(win, ' ');
/* end touch */
wattrset(win, shadow_attr);
wmove(win, y + height, x + 2);
for (i = 0; i < width; i++)
if (i+x+2 < getmaxx(win))
waddch(win, mvwinch(newscr, sy+y+height, sx+x+2+i) & A_CHARTEXT);
}
if (x+width < getmaxx(win)) {
for (i = y + 1; i < y + height + 1; i++) {
if (i < getmaxy(win)) {
/* small touch */
wattrset(win, A_INVIS);
wmove(win, i, x + width);
waddch(win, ' ');
if (x+width+1 < getmaxx(win))
waddch(win, ' ');
/* end touch */
wattrset(win, shadow_attr);
wmove(win, i, x + width);
waddch(win, mvwinch(newscr, sy+i, sx+x+width) & A_CHARTEXT);
if (x+width+1 < getmaxx(win))
waddch(win, mvwinch(newscr, sy+i, sx+x+width+1) & A_CHARTEXT);
}
}
}
wattrset(win, attrs);
wnoutrefresh(win);
}
}
/* End of draw_shadow() */
#endif
void dialog_clear_norefresh(void)
{
attr_clear(stdscr, LINES, COLS, screen_attr);
touchwin(stdscr);
wnoutrefresh(stdscr);
}
void dialog_clear(void)
{
dialog_clear_norefresh();
doupdate();
}
void dialog_update(void)
{
refresh();
}
void end_dialog(void)
{
endwin();
}
int strwidth(const char *p)
{
int i = 0, len, incr;
const char *start, *s, *s1, *s2;
for (start = s = p; ; start = (s += incr)) {
s1 = strchr(s, '\n');
s2 = strstr(s, "\\n");
if (s2 == NULL)
s = s1;
else if (s1 == NULL)
s = s2;
else
s = MIN(s1, s2);
if (s == NULL)
break;
incr = 1 + (s == s2);
len = s - start;
if (len > i)
i = len;
}
len = strlen(start);
if (len > i)
i = len;
return i;
}
int strheight(const char *p)
{
int i = 1, incr;
const char *s, *s1, *s2;
for (s = p; ; s += incr) {
s1 = strchr(s, '\n');
s2 = strstr(s, "\\n");
if (s2 == NULL)
s = s1;
else if (s1 == NULL)
s = s2;
else
s = MIN(s1, s2);
if (s == NULL)
break;
incr = 1 + (s == s2);
i++;
}
return i;
}
void print_arrows(WINDOW *dialog, int scroll, int menu_height, int item_no,
int box_x, int box_y, int tag_x, int cur_x, int cur_y)
{
wmove(dialog, box_y, box_x + tag_x + 1);
wattrset(dialog, scroll ? uarrow_attr : menubox_attr);
waddch(dialog, scroll ? ACS_UARROW : ACS_HLINE);
wmove(dialog, box_y, box_x + tag_x + 2);
waddch(dialog, scroll ? '(' : ACS_HLINE);
wmove(dialog, box_y, box_x + tag_x + 3);
waddch(dialog, scroll ? '-' : ACS_HLINE);
wmove(dialog, box_y, box_x + tag_x + 4);
waddch(dialog, scroll ? ')' : ACS_HLINE);
wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 1);
wattrset(dialog, scroll+menu_height < item_no ? darrow_attr : menubox_border_attr);
waddch(dialog, scroll+menu_height < item_no ? ACS_DARROW : ACS_HLINE);
wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 2);
waddch(dialog, scroll+menu_height < item_no ? '(' : ACS_HLINE);
wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 3);
waddch(dialog, scroll+menu_height < item_no ? '+' : ACS_HLINE);
wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 4);
waddch(dialog, scroll+menu_height < item_no ? ')' : ACS_HLINE);
wmove(dialog, cur_y, cur_x); /* Restore cursor position */
}