/*
* Display a dialog box with a list of options that can be turned on or off
* The `flag' parameter is used to select between radiolist and checklist.
*/
int
dialog_checklist(const char *title, const char *cprompt, int height, int width,
int list_height, int item_no, char **items, int flag,
int separate_output)
{
int i, j, key2, found, x, y, cur_x, cur_y, box_x, box_y;
int key = 0, fkey;
int button = 0;
int choice = 0;
int scrollamt = 0;
int max_choice, *status;
int use_width, name_width, text_width;
int result = DLG_EXIT_UNKNOWN;
WINDOW *dialog, *list;
char *prompt = strclone(cprompt);
const char **buttons = dlg_ok_labels();
tab_correct_str(prompt);
if (list_height == 0) {
use_width = calc_listw(item_no, items, CHECKBOX_TAGS) + 10;
/* calculate height without items (4) */
auto_size(title, prompt, &height, &width, 4, MAX(26, use_width));
calc_listh(&height, &list_height, item_no);
} else {
auto_size(title, prompt, &height, &width, 4 + list_height, 26);
}
print_size(height, width);
ctl_size(height, width);
checkflag = flag;
/* Allocate space for storing item on/off status */
status = malloc(sizeof(int) * item_no);
assert_ptr(status, "dialog_checklist");
/* Initializes status */
for (i = 0; i < item_no; i++)
status[i] = !dlg_strcmp(ItemStatus(i), "on");
max_choice = MIN(list_height, item_no);
x = box_x_ordinate(width);
y = box_y_ordinate(height);
dialog = new_window(height, width, y, x);
mouse_setbase(x, y);
draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
draw_bottom_box(dialog);
draw_title(dialog, title);
wattrset(dialog, dialog_attr);
print_autowrap(dialog, prompt, height, width);
list_width = width - 6;
getyx(dialog, cur_y, cur_x);
box_y = cur_y + 1;
box_x = (width - list_width) / 2 - 1;
/* create new window for the list */
list = sub_window(dialog, list_height, list_width,
y + box_y + 1, x + box_x + 1);
/* draw a box around the list items */
draw_box(dialog, box_y, box_x,
list_height + 2 * MARGIN,
list_width + 2 * MARGIN,
menubox_border_attr, menubox_attr);
text_width = 0;
name_width = 0;
/* Find length of longest item to center checklist */
for (i = 0; i < item_no; i++) {
text_width = MAX(text_width, (int) strlen(ItemText(i)));
name_width = MAX(name_width, (int) strlen(ItemName(i)));
}
/* If the name+text is wider than the list is allowed, then truncate
* one or both of them. If the name is no wider than 1/4 of the list,
* leave it intact.
*/
use_width = (list_width - 6);
if (text_width + name_width > use_width) {
int need = 0.25 * use_width;
if (name_width > need) {
int want = use_width * ((double) name_width) / (text_width + name_width);
name_width = (want > need) ? want : need;
}
text_width = use_width - name_width;
}
check_x = (use_width - (text_width + name_width)) / 2;
item_x = name_width + check_x + 6;
/* Print the list */
for (i = 0; i < max_choice; i++)
print_item(list,
ItemData(i),
status[i], i, i == choice);
(void) wnoutrefresh(list);
/* register the new window, along with its borders */
mouse_mkbigregion(box_y + 1, box_x, list_height, list_width + 2,
KEY_MAX, 1, 1, 1 /* by lines */ );
dlg_draw_arrows(dialog, scrollamt,
scrollamt + max_choice < item_no - 1,
box_x + check_x + 5,
box_y,
box_y + list_height + 1);
dlg_draw_buttons(dialog, height - 2, 0, buttons, 0, FALSE, width);
wtimeout(dialog, WTIMEOUT_VAL);
while (result == DLG_EXIT_UNKNOWN) {
key = mouse_wgetch(dialog, &fkey);
if (fkey && (key >= (M_EVENT + KEY_MAX))) {
getyx(dialog, cur_y, cur_x);
/* De-highlight current item */
print_item(list,
ItemData(scrollamt + choice),
status[scrollamt + choice], choice, FALSE);
/* Highlight new item */
choice = (key - (M_EVENT + KEY_MAX));
print_item(list,
ItemData(scrollamt + choice),
status[scrollamt + choice], choice, TRUE);
(void) wnoutrefresh(list);
(void) wmove(dialog, cur_y, cur_x);
key = ' '; /* force the selected item to toggle */
fkey = FALSE;
}
/*
* A space toggles the item status. We handle either a checklist
* (any number of items can be selected) or radio list (zero or one
* items can be selected).
*/
if (key == ' ') {
getyx(dialog, cur_y, cur_x);
if (flag == FLAG_CHECK) { /* checklist? */
status[scrollamt + choice] = !status[scrollamt + choice];
print_item(list,
ItemData(scrollamt + choice),
status[scrollamt + choice], choice, TRUE);
} else { /* radiolist */
if (!status[scrollamt + choice]) {
for (i = 0; i < item_no; i++)
status[i] = FALSE;
status[scrollamt + choice] = TRUE;
for (i = 0; i < max_choice; i++)
print_item(list,
ItemData(scrollamt + i),
status[scrollamt + i], i, i == choice);
}
}
(void) wnoutrefresh(list);
(void) wmove(dialog, cur_y, cur_x);
wrefresh(dialog);
continue; /* wait for another key press */
} else if (key == ESC) {
result = DLG_EXIT_ESC;
continue;
}
if (!fkey) {
fkey = TRUE;
switch (key) {
case '\n':
case '\r':
key = KEY_ENTER;
break;
case '-':
key = KEY_UP;
break;
case '+':
key = KEY_DOWN;
break;
case TAB:
key = KEY_RIGHT;
break;
default:
fkey = FALSE;
break;
}
}
/*
* Check if key pressed matches first character of any item tag in
* list. If there is more than one match, we will cycle through
* each one as the same key is pressed repeatedly.
*/
found = FALSE;
if (!fkey) {
for (j = scrollamt + choice + 1; j < item_no; j++) {
if (dlg_match_char(dlg_last_getc(), ItemName(j))) {
found = TRUE;
i = j - scrollamt;
break;
}
}
if (!found) {
for (j = 0; j <= scrollamt + choice; j++) {
if (dlg_match_char(dlg_last_getc(), ItemName(j))) {
found = TRUE;
i = j - scrollamt;
break;
}
}
}
if (found)
dlg_flush_getc();
}
/*
* A single digit (1-9) positions the selection to that line in the
* current screen.
*/
if (!found
&& (key <= '9')
&& (key > '0')
&& (key - '1' < max_choice)) {
found = TRUE;
i = key - '1';
}
if (!found) {
if (fkey) {
found = TRUE;
switch (key) {
case KEY_HOME:
i = -scrollamt;
break;
case KEY_LL:
case KEY_END:
i = item_no - 1 - scrollamt;
break;
case M_EVENT + KEY_PPAGE:
case KEY_PPAGE:
if (choice)
i = 0;
else if (scrollamt != 0)
i = -MIN(scrollamt, max_choice);
else
continue;
break;
case M_EVENT + KEY_NPAGE:
case KEY_NPAGE:
i = MIN(choice + max_choice, item_no - scrollamt - 1);
break;
case KEY_UP:
i = choice - 1;
if (choice == 0 && scrollamt == 0)
continue;
break;
case KEY_DOWN:
i = choice + 1;
if (scrollamt + choice >= item_no - 1)
continue;
break;
default:
found = FALSE;
break;
}
}
}
if (found) {
if (i != choice) {
getyx(dialog, cur_y, cur_x);
if (i < 0 || i >= max_choice) {
#if defined(NCURSES_VERSION_MAJOR) && NCURSES_VERSION_MAJOR < 5
/*
* Using wscrl to assist ncurses scrolling is not needed
* in version 5.x
*/
if (i == -1) {
if (list_height > 1) {
/* De-highlight current first item */
print_item(list,
ItemData(scrollamt),
status[scrollamt], 0, FALSE);
scrollok(list, TRUE);
wscrl(list, -1);
scrollok(list, FALSE);
}
scrollamt--;
print_item(list,
ItemData(scrollamt),
status[scrollamt], 0, TRUE);
} else if (i == max_choice) {
if (list_height > 1) {
/* De-highlight current last item before scrolling up */
print_item(list,
ItemData(scrollamt + max_choice - 1),
status[scrollamt + max_choice - 1],
max_choice - 1, FALSE);
scrollok(list, TRUE);
wscrl(list, 1);
scrollok(list, FALSE);
}
scrollamt++;
print_item(list,
ItemData(scrollamt + max_choice - 1),
status[scrollamt + max_choice - 1],
max_choice - 1, TRUE);
} else
#endif
{
if (i < 0) {
scrollamt += i;
choice = 0;
} else {
choice = max_choice - 1;
scrollamt += (i - max_choice + 1);
}
for (i = 0; i < max_choice; i++) {
print_item(list,
ItemData(scrollamt + i),
status[scrollamt + i], i, i == choice);
}
}
(void) wnoutrefresh(list);
dlg_draw_arrows(dialog, scrollamt,
scrollamt + choice < item_no - 1,
box_x + check_x + 5,
box_y,
box_y + list_height + 1);
} else {
/* De-highlight current item */
print_item(list,
ItemData(scrollamt + choice),
status[scrollamt + choice], choice, FALSE);
/* Highlight new item */
choice = i;
print_item(list,
ItemData(scrollamt + choice),
status[scrollamt + choice], choice, TRUE);
(void) wnoutrefresh(list);
(void) wmove(dialog, cur_y, cur_x);
wrefresh(dialog);
}
}
continue; /* wait for another key press */
}
if (fkey) {
switch (key) {
case KEY_ENTER:
result = dlg_ok_buttoncode(button);
break;
case KEY_BTAB:
case KEY_LEFT:
button = dlg_prev_button(buttons, button);
dlg_draw_buttons(dialog, height - 2, 0, buttons, button,
FALSE, width);
break;
case KEY_RIGHT:
button = dlg_next_button(buttons, button);
dlg_draw_buttons(dialog, height - 2, 0, buttons, button,
FALSE, width);
break;
default:
if (key >= M_EVENT) {
if ((key2 = dlg_ok_buttoncode(key - M_EVENT)) >= 0) {
result = key2;
break;
}
beep();
}
}
} else {
beep();
}
}
del_window(dialog);
switch (result) {
case DLG_EXIT_OK: /* FALLTHRU */
case DLG_EXIT_EXTRA:
for (i = 0; i < item_no; i++) {
if (status[i]) {
if (flag == FLAG_CHECK) {
if (separate_output) {
dlg_add_result(ItemName(i));
dlg_add_result("\n");
} else {
dlg_add_result("\"");
dlg_add_result(ItemName(i));
dlg_add_result("\" ");
}
} else {
dlg_add_result(ItemName(i));
}
}
}
break;
case DLG_EXIT_HELP:
dlg_add_result("HELP ");
if (USE_ITEM_HELP(ItemHelp(scrollamt + choice))) {
dlg_add_result(ItemHelp(scrollamt + choice));
result = DLG_EXIT_OK; /* this is inconsistent */
} else {
dlg_add_result(ItemName(scrollamt + choice));
}
break;
}
mouse_free_regions();
free(status);
free(prompt);
return result;
}
/*
* Display a dialog box with a list of options that can be turned on or off
* The `flag' parameter is used to select between radiolist and checklist.
*/
int
dialog_checklist(const char *title,
const char *cprompt,
int height,
int width,
int list_height,
int item_no,
char **items,
int flag)
{
int result;
int i;
DIALOG_LISTITEM *listitems;
bool separate_output = ((flag == FLAG_CHECK)
&& (dialog_vars.separate_output));
bool show_status = FALSE;
int current = 0;
listitems = dlg_calloc(DIALOG_LISTITEM, (size_t) item_no + 1);
assert_ptr(listitems, "dialog_checklist");
for (i = 0; i < item_no; ++i) {
listitems[i].name = ItemName(i);
listitems[i].text = ItemText(i);
listitems[i].help = ((dialog_vars.item_help)
? ItemHelp(i)
: dlg_strempty());
listitems[i].state = !dlg_strcmp(ItemStatus(i), "on");
}
dlg_align_columns(&listitems[0].text, (int) sizeof(DIALOG_LISTITEM), item_no);
result = dlg_checklist(title,
cprompt,
height,
width,
list_height,
item_no,
listitems,
NULL,
flag,
¤t);
switch (result) {
case DLG_EXIT_OK: /* FALLTHRU */
case DLG_EXIT_EXTRA:
show_status = TRUE;
break;
case DLG_EXIT_HELP:
dlg_add_result("HELP ");
show_status = dialog_vars.help_status;
if (USE_ITEM_HELP(listitems[current].help)) {
if (show_status) {
if (separate_output) {
dlg_add_string(listitems[current].help);
dlg_add_separator();
} else {
dlg_add_quoted(listitems[current].help);
}
} else {
dlg_add_string(listitems[current].help);
}
result = DLG_EXIT_ITEM_HELP;
} else {
if (show_status) {
if (separate_output) {
dlg_add_string(listitems[current].name);
dlg_add_separator();
} else {
dlg_add_quoted(listitems[current].name);
}
} else {
dlg_add_string(listitems[current].name);
}
}
break;
}
if (show_status) {
for (i = 0; i < item_no; i++) {
if (listitems[i].state) {
if (separate_output) {
dlg_add_string(listitems[i].name);
dlg_add_separator();
} else {
if (dlg_need_separator())
dlg_add_separator();
dlg_add_string(listitems[i].name);
}
}
}
}
dlg_free_columns(&listitems[0].text, (int) sizeof(DIALOG_LISTITEM), item_no);
free(listitems);
return result;
}
