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/*
* $Id: demo_forms.c,v 1.31 2008/12/20 19:23:00 tom Exp $
*
* Demonstrate a variety of functions from the form library.
* Thomas Dickey - 2003/4/26
*/
/*
TYPE_ENUM -
TYPE_REGEXP -
dup_field -
field_init -
field_just -
field_term -
form_init -
form_opts -
form_opts_off -
form_opts_on -
form_request_by_name -
form_term -
form_userptr -
free_fieldtype -
link_field -
link_fieldtype -
move_field -
new_page -
pos_form_cursor -
set_field_init -
set_field_term -
set_fieldtype_arg -
set_fieldtype_choice -
set_form_fields -
set_form_init -
set_form_opts -
set_form_page -
set_form_term -
set_form_userptr -
set_max_field -
*/
#include <test.priv.h>
#if USE_LIBFORM
#include <edit_field.h>
static int d_option = 0;
static int j_value = 0;
static int m_value = 0;
static int o_value = 0;
static char *t_value = 0;
static FIELD *
make_label(int frow, int fcol, NCURSES_CONST char *label)
{
FIELD *f = new_field(1, (int) strlen(label), frow, fcol, 0, 0);
if (f) {
set_field_buffer(f, 0, label);
set_field_opts(f, (int) (field_opts(f) & ~O_ACTIVE));
}
return (f);
}
/*
* Define each field with an extra one, for reflecting "actual" text.
*/
static FIELD *
make_field(int frow, int fcol, int rows, int cols)
{
FIELD *f = new_field(rows, cols, frow, fcol, o_value, 1);
if (f) {
FieldAttrs *ptr;
set_field_back(f, A_UNDERLINE);
/*
* If -j and -d options are combined, -j loses. It is documented in
* "Character User Interface Programming", page 12-15 that setting
* O_STATIC off makes the form library ignore justification.
*/
set_field_just(f, j_value);
if (d_option) {
if (has_colors()) {
set_field_fore(f, COLOR_PAIR(2));
set_field_back(f, A_UNDERLINE | COLOR_PAIR(3));
} else {
set_field_fore(f, A_BOLD);
}
/*
* The field_opts_off() call dumps core with Solaris curses,
* but that is a known bug in Solaris' form library -TD
*/
field_opts_off(f, O_STATIC);
set_max_field(f, m_value);
}
/*
* The userptr is used in edit_field.c's inactive_field().
*/
ptr = (FieldAttrs *) field_userptr(f);
if (ptr == 0) {
ptr = typeCalloc(FieldAttrs, 1);
ptr->background = field_back(f);
}
set_field_userptr(f, (void *) ptr);
if (t_value)
set_field_buffer(f, 0, t_value);
}
return (f);
}
static void
display_form(FORM * f)
{
WINDOW *w;
int rows, cols;
scale_form(f, &rows, &cols);
/*
* Put the form at the upper-left corner of the display, with just a box
* around it.
*/
if ((w = newwin(rows + 2, cols + 4, 0, 0)) != (WINDOW *) 0) {
set_form_win(f, w);
set_form_sub(f, derwin(w, rows, cols, 1, 2));
box(w, 0, 0);
keypad(w, TRUE);
}
if (post_form(f) != E_OK)
wrefresh(w);
}
static void
erase_form(FORM * f)
{
WINDOW *w = form_win(f);
WINDOW *s = form_sub(f);
unpost_form(f);
werase(w);
wrefresh(w);
delwin(s);
delwin(w);
}
static void
show_insert_mode(bool insert_mode)
{
mvaddstr(5, 57, (insert_mode
? "form_status: insert "
: "form_status: overlay"));
}
#define O_SELECTABLE (O_ACTIVE | O_VISIBLE)
static FIELD *
another_field(FORM * form, FIELD * field)
{
FIELD **f = form_fields(form);
FIELD *result = 0;
int n;
for (n = 0; f[n] != 0; ++n) {
if (f[n] != field) {
result = f[n];
field_opts_on(result, O_SELECTABLE);
break;
}
}
return result;
}
static int
my_form_driver(FORM * form, int c)
{
static bool insert_mode = TRUE;
FIELD *field;
switch (c) {
case MY_QUIT:
if (form_driver(form, REQ_VALIDATION) == E_OK)
return (TRUE);
break;
case MY_HELP:
help_edit_field();
break;
case MY_EDT_MODE:
if ((field = current_field(form)) != 0) {
set_current_field(form, another_field(form, field));
if (field_opts(field) & O_EDIT) {
field_opts_off(field, O_EDIT);
set_field_status(field, 0);
} else {
field_opts_on(field, O_EDIT);
}
set_current_field(form, field);
}
break;
case MY_INS_MODE:
/* there should be a form_status() function, but there is none */
if (!insert_mode) {
if (form_driver(form, REQ_INS_MODE) == E_OK) {
insert_mode = TRUE;
}
} else {
if (form_driver(form, REQ_OVL_MODE) == E_OK) {
insert_mode = FALSE;
}
}
show_insert_mode(insert_mode);
refresh();
break;
default:
beep();
break;
}
return (FALSE);
}
static void
show_current_field(WINDOW *win, FORM * form)
{
FIELD *field;
FIELDTYPE *type;
char *buffer;
int nbuf;
int field_rows, field_cols, field_max;
if (has_colors()) {
wbkgd(win, COLOR_PAIR(1));
}
werase(win);
wprintw(win, "Cursor: %d,%d", form->currow, form->curcol);
if (data_ahead(form))
waddstr(win, " ahead");
if (data_behind(form))
waddstr(win, " behind");
waddch(win, '\n');
if ((field = current_field(form)) != 0) {
wprintw(win, "Page %d%s, Field %d/%d%s:",
form_page(form),
new_page(field) ? "*" : "",
field_index(field), field_count(form),
field_arg(field) ? "(arg)" : "");
if ((type = field_type(field)) != 0) {
if (type == TYPE_ALNUM)
waddstr(win, "ALNUM");
else if (type == TYPE_ALPHA)
waddstr(win, "ALPHA");
else if (type == TYPE_ENUM)
waddstr(win, "ENUM");
else if (type == TYPE_INTEGER)
waddstr(win, "INTEGER");
#ifdef NCURSES_VERSION
else if (type == TYPE_IPV4)
waddstr(win, "IPV4");
#endif
else if (type == TYPE_NUMERIC)
waddstr(win, "NUMERIC");
else if (type == TYPE_REGEXP)
waddstr(win, "REGEXP");
else
waddstr(win, "other");
}
if (field_opts(field) & O_EDIT)
waddstr(win, " editable");
else
waddstr(win, " readonly");
if (field_status(field))
waddstr(win, " modified");
if (dynamic_field_info(field, &field_rows, &field_cols, &field_max)
!= ERR) {
wprintw(win, " size %dx%d (max %d)",
field_rows, field_cols, field_max);
}
waddch(win, ' ');
wattrset(win, field_fore(field));
waddstr(win, "fore");
wattroff(win, field_fore(field));
waddch(win, '/');
wattrset(win, field_back(field));
waddstr(win, "back");
wattroff(win, field_back(field));
wprintw(win, ", pad '%c'",
field_pad(field));
waddstr(win, "\n");
for (nbuf = 0; nbuf <= 2; ++nbuf) {
if ((buffer = field_buffer(field, nbuf)) != 0) {
wprintw(win, "buffer %d:", nbuf);
wattrset(win, A_REVERSE);
waddstr(win, buffer);
wattroff(win, A_REVERSE);
waddstr(win, "\n");
}
}
}
wrefresh(win);
}
static void
demo_forms(void)
{
WINDOW *w;
FORM *form;
FIELD *f[100]; /* FIXME memset to zero */
int finished = 0, c;
unsigned n = 0;
int pg;
WINDOW *also;
#ifdef NCURSES_MOUSE_VERSION
mousemask(ALL_MOUSE_EVENTS, (mmask_t *) 0);
#endif
help_edit_field();
mvaddstr(4, 57, "Forms Entry Test");
show_insert_mode(TRUE);
refresh();
/* describe the form */
memset(f, 0, sizeof(f));
for (pg = 0; pg < 4; ++pg) {
char label[80];
sprintf(label, "Sample Form Page %d", pg + 1);
f[n++] = make_label(0, 15, label);
set_new_page(f[n - 1], TRUE);
switch (pg) {
default:
f[n++] = make_label(2, 0, "Last Name");
f[n++] = make_field(3, 0, 1, 18);
set_field_type(f[n - 1], TYPE_ALPHA, 1);
f[n++] = make_label(2, 20, "First Name");
f[n++] = make_field(3, 20, 1, 12);
set_field_type(f[n - 1], TYPE_ALPHA, 1);
f[n++] = make_label(2, 34, "Middle Name");
f[n++] = make_field(3, 34, 1, 12);
set_field_type(f[n - 1], TYPE_ALPHA, 1);
break;
case 1:
f[n++] = make_label(2, 0, "Last Name");
f[n++] = make_field(3, 0, 1, 18);
set_field_type(f[n - 1], TYPE_ALPHA, 1);
f[n++] = make_label(2, 20, "First Name");
f[n++] = make_field(3, 20, 1, 12);
set_field_type(f[n - 1], TYPE_ALPHA, 1);
f[n++] = make_label(2, 34, "MI");
f[n++] = make_field(3, 34, 1, 1);
set_field_pad(f[n - 1], '?');
set_field_type(f[n - 1], TYPE_ALPHA, 1);
break;
case 2:
f[n++] = make_label(2, 0, "Host Name");
f[n++] = make_field(3, 0, 1, 18);
set_field_type(f[n - 1], TYPE_ALNUM, 1);
#ifdef NCURSES_VERSION
f[n++] = make_label(2, 20, "IP Address");
f[n++] = make_field(3, 20, 1, 12);
set_field_type(f[n - 1], TYPE_IPV4, 1);
#endif
break;
case 3:
f[n++] = make_label(2, 0, "Four digits");
f[n++] = make_field(3, 0, 1, 18);
set_field_type(f[n - 1], TYPE_INTEGER, 4, 0, 0);
f[n++] = make_label(2, 20, "Numeric");
f[n++] = make_field(3, 20, 1, 12);
set_field_type(f[n - 1], TYPE_NUMERIC, 3, -10000.0, 100000000.0);
break;
}
f[n++] = make_label(5, 0, "Comments");
f[n++] = make_field(6, 0, 4, 46);
set_field_buffer(f[n - 1], 0, "HELLO\nWORLD!");
set_field_buffer(f[n - 1], 1, "Hello\nWorld!");
}
f[n++] = (FIELD *) 0;
if ((form = new_form(f)) != 0) {
display_form(form);
w = form_win(form);
also = newwin(getmaxy(stdscr) - getmaxy(w), COLS, getmaxy(w), 0);
show_current_field(also, form);
while (!finished) {
switch (edit_field(form, &c)) {
case E_OK:
break;
case E_UNKNOWN_COMMAND:
finished = my_form_driver(form, c);
break;
default:
beep();
break;
}
show_current_field(also, form);
}
erase_form(form);
free_form(form);
}
for (c = 0; f[c] != 0; c++)
free_field(f[c]);
noraw();
nl();
#ifdef NCURSES_MOUSE_VERSION
mousemask(0, (mmask_t *) 0);
#endif
}
static void
usage(void)
{
static const char *tbl[] =
{
"Usage: demo_forms [options]"
,""
," -d make fields dynamic"
," -j value justify (1=left, 2=center, 3=right)"
," -m value set maximum size of dynamic fields"
," -o value specify number of offscreen rows in new_field()"
," -t value specify text to fill fields initially"
};
unsigned int j;
for (j = 0; j < SIZEOF(tbl); ++j)
fprintf(stderr, "%s\n", tbl[j]);
exit(EXIT_FAILURE);
}
int
main(int argc, char *argv[])
{
int ch;
setlocale(LC_ALL, "");
while ((ch = getopt(argc, argv, "dj:m:o:t:")) != -1) {
switch (ch) {
case 'd':
d_option = TRUE;
break;
case 'j':
j_value = atoi(optarg);
if (j_value < NO_JUSTIFICATION
|| j_value > JUSTIFY_RIGHT)
usage();
break;
case 'm':
m_value = atoi(optarg);
break;
case 'o':
o_value = atoi(optarg);
break;
case 't':
t_value = optarg;
break;
default:
usage();
}
}
initscr();
cbreak();
noecho();
raw();
nonl(); /* lets us read ^M's */
intrflush(stdscr, FALSE);
keypad(stdscr, TRUE);
if (has_colors()) {
start_color();
init_pair(1, COLOR_WHITE, COLOR_BLUE);
init_pair(2, COLOR_GREEN, COLOR_BLACK);
init_pair(3, COLOR_CYAN, COLOR_BLACK);
bkgd(COLOR_PAIR(1));
refresh();
}
demo_forms();
endwin();
ExitProgram(EXIT_SUCCESS);
}
#else
int
main(void)
{
printf("This program requires the curses form library\n");
ExitProgram(EXIT_FAILURE);
}
#endif
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