/*
* Display a menu for choosing among a number of options
*/
int
dialog_menu (const char *title, const char *prompt, int height, int width,
int menu_height, const char *current, int item_no,
const char * const * items)
{
int i, j, x, y, box_x, box_y;
int key = 0, button = 0, scroll = 0, choice = 0, first_item = 0, max_choice;
WINDOW *dialog, *menu;
FILE *f;
max_choice = MIN (menu_height, item_no);
/* center dialog box on screen */
x = (COLS - width) / 2;
y = (LINES - height) / 2;
draw_shadow (stdscr, y, x, height, width);
dialog = newwin (height, width, y, x);
keypad (dialog, TRUE);
draw_box (dialog, 0, 0, height, width, dialog_attr, border_attr);
wattrset (dialog, border_attr);
mvwaddch (dialog, height - 3, 0, ACS_LTEE);
for (i = 0; i < width - 2; i++)
waddch (dialog, ACS_HLINE);
wattrset (dialog, dialog_attr);
wbkgdset (dialog, dialog_attr & A_COLOR);
waddch (dialog, ACS_RTEE);
if (title != NULL && strlen(title) >= width-2 ) {
/* truncate long title -- mec */
char * title2 = malloc(width-2+1);
memcpy( title2, title, width-2 );
title2[width-2] = '\0';
title = title2;
}
if (title != NULL) {
wattrset (dialog, title_attr);
mvwaddch (dialog, 0, (width - strlen(title))/2 - 1, ' ');
waddstr (dialog, (char *)title);
waddch (dialog, ' ');
}
wattrset (dialog, dialog_attr);
print_autowrap (dialog, prompt, width - 2, 1, 3);
menu_width = width - 6;
box_y = height - menu_height - 5;
box_x = (width - menu_width) / 2 - 1;
/* create new window for the menu */
menu = subwin (dialog, menu_height, menu_width,
y + box_y + 1, x + box_x + 1);
keypad (menu, TRUE);
/* draw a box around the menu items */
draw_box (dialog, box_y, box_x, menu_height + 2, menu_width + 2,
menubox_border_attr, menubox_attr);
/*
* Find length of longest item in order to center menu.
* Set 'choice' to default item.
*/
item_x = 0;
for (i = 0; i < item_no; i++) {
item_x = MAX (item_x, MIN(menu_width, strlen (items[i * 2 + 1]) + 2));
if (strcmp(current, items[i*2]) == 0) choice = i;
}
item_x = (menu_width - item_x) / 2;
/* get the scroll info from the temp file */
if ( (f=fopen("lxdialog.scrltmp","r")) != NULL ) {
if ( (fscanf(f,"%d\n",&scroll) == 1) && (scroll <= choice) &&
(scroll+max_choice > choice) && (scroll >= 0) &&
(scroll+max_choice <= item_no) ) {
first_item = scroll;
choice = choice - scroll;
fclose(f);
} else {
scroll=0;
remove("lxdialog.scrltmp");
fclose(f);
f=NULL;
}
}
if ( (choice >= max_choice) || (f==NULL && choice >= max_choice/2) ) {
if (choice >= item_no-max_choice/2)
scroll = first_item = item_no-max_choice;
else
scroll = first_item = choice - max_choice/2;
choice = choice - scroll;
}
/* Print the menu */
for (i=0; i < max_choice; i++) {
print_item (menu, items[(first_item + i) * 2 + 1], i, i == choice,
(items[(first_item + i)*2][0] != ':'));
}
wnoutrefresh (menu);
print_arrows(dialog, item_no, scroll,
box_y, box_x+item_x+1, menu_height);
print_buttons (dialog, height, width, 0);
while (key != ESC) {
key = wgetch(dialog);
if (key < 256 && isalpha(key)) key = tolower(key);
if (strchr("ynm", key))
i = max_choice;
else {
for (i = choice+1; i < max_choice; i++) {
j = first_alpha(items[(scroll+i)*2+1], "YyNnMm");
if (key == tolower(items[(scroll+i)*2+1][j]))
break;
}
if (i == max_choice)
for (i = 0; i < max_choice; i++) {
j = first_alpha(items[(scroll+i)*2+1], "YyNnMm");
if (key == tolower(items[(scroll+i)*2+1][j]))
break;
}
}
if (i < max_choice ||
key == KEY_UP || key == KEY_DOWN ||
key == '-' || key == '+' ||
key == KEY_PPAGE || key == KEY_NPAGE) {
print_item (menu, items[(scroll+choice)*2+1], choice, FALSE,
(items[(scroll+choice)*2][0] != ':'));
if (key == KEY_UP || key == '-') {
if (choice < 2 && scroll) {
/* Scroll menu down */
scrollok (menu, TRUE);
wscrl (menu, -1);
scrollok (menu, FALSE);
scroll--;
print_item (menu, items[scroll * 2 + 1], 0, FALSE,
(items[scroll*2][0] != ':'));
} else
choice = MAX(choice - 1, 0);
} else if (key == KEY_DOWN || key == '+') {
print_item (menu, items[(scroll+choice)*2+1], choice, FALSE,
(items[(scroll+choice)*2][0] != ':'));
if ((choice > max_choice-3) &&
(scroll + max_choice < item_no)
) {
/* Scroll menu up */
scrollok (menu, TRUE);
scroll (menu);
scrollok (menu, FALSE);
scroll++;
print_item (menu, items[(scroll+max_choice-1)*2+1],
max_choice-1, FALSE,
(items[(scroll+max_choice-1)*2][0] != ':'));
} else
choice = MIN(choice+1, max_choice-1);
} else if (key == KEY_PPAGE) {
scrollok (menu, TRUE);
for (i=0; (i < max_choice); i++) {
if (scroll > 0) {
wscrl (menu, -1);
scroll--;
print_item (menu, items[scroll * 2 + 1], 0, FALSE,
(items[scroll*2][0] != ':'));
} else {
if (choice > 0)
choice--;
}
}
scrollok (menu, FALSE);
} else if (key == KEY_NPAGE) {
for (i=0; (i < max_choice); i++) {
if (scroll+max_choice < item_no) {
scrollok (menu, TRUE);
scroll(menu);
scrollok (menu, FALSE);
scroll++;
print_item (menu, items[(scroll+max_choice-1)*2+1],
max_choice-1, FALSE,
(items[(scroll+max_choice-1)*2][0] != ':'));
} else {
if (choice+1 < max_choice)
choice++;
}
}
} else
choice = i;
print_item (menu, items[(scroll+choice)*2+1], choice, TRUE,
(items[(scroll+choice)*2][0] != ':'));
print_arrows(dialog, item_no, scroll,
box_y, box_x+item_x+1, menu_height);
wnoutrefresh (menu);
wrefresh (dialog);
continue; /* wait for another key press */
}
switch (key) {
case KEY_LEFT:
case TAB:
case KEY_RIGHT:
button = ((key == KEY_LEFT ? --button : ++button) < 0)
? 2 : (button > 2 ? 0 : button);
print_buttons(dialog, height, width, button);
wrefresh (dialog);
break;
case ' ':
case 's':
case 'y':
case 'n':
case 'm':
/* save scroll info */
if ( (f=fopen("lxdialog.scrltmp","w")) != NULL ) {
fprintf(f,"%d\n",scroll);
fclose(f);
}
delwin (dialog);
fprintf(stderr, "%s\n", items[(scroll + choice) * 2]);
switch (key) {
case 's': return 3;
case 'y': return 3;
case 'n': return 4;
case 'm': return 5;
case ' ': return 6;
}
return 0;
case 'h':
case '?':
button = 2;
case '\n':
delwin (dialog);
if (button == 2)
fprintf(stderr, "%s \"%s\"\n",
items[(scroll + choice) * 2],
items[(scroll + choice) * 2 + 1] +
first_alpha(items[(scroll + choice) * 2 + 1],""));
else
fprintf(stderr, "%s\n", items[(scroll + choice) * 2]);
remove("lxdialog.scrltmp");
return button;
case 'e':
case 'x':
key = ESC;
case ESC:
break;
}
}
delwin (dialog);
remove("lxdialog.scrltmp");
return -1; /* ESC pressed */
}
/*
* Display a dialog box with a list of options that can be turned on or off
* in the style of radiolist (only one option turned on at a time).
*/
int dialog_checklist(const char *title, const char *prompt, int height,
int width, int list_height)
{
int i, x, y, box_x, box_y;
int key = 0, button = 0, choice = 0, scroll = 0, max_choice;
WINDOW *dialog, *list;
/* which item to highlight */
item_foreach() {
if (item_is_tag('X'))
choice = item_n();
if (item_is_selected()) {
choice = item_n();
break;
}
}
do_resize:
if (getmaxy(stdscr) < (height + 6))
return -ERRDISPLAYTOOSMALL;
if (getmaxx(stdscr) < (width + 6))
return -ERRDISPLAYTOOSMALL;
max_choice = MIN(list_height, item_count());
/* center dialog box on screen */
x = (COLS - width) / 2;
y = (LINES - height) / 2;
draw_shadow(stdscr, y, x, height, width);
dialog = newwin(height, width, y, x);
keypad(dialog, TRUE);
draw_box(dialog, 0, 0, height, width,
dlg.dialog.atr, dlg.border.atr);
wattrset(dialog, dlg.border.atr);
mvwaddch(dialog, height - 3, 0, ACS_LTEE);
for (i = 0; i < width - 2; i++)
waddch(dialog, ACS_HLINE);
wattrset(dialog, dlg.dialog.atr);
waddch(dialog, ACS_RTEE);
print_title(dialog, title, width);
wattrset(dialog, dlg.dialog.atr);
print_autowrap(dialog, prompt, width - 2, 1, 3);
list_width = width - 6;
box_y = height - list_height - 5;
box_x = (width - list_width) / 2 - 1;
/* create new window for the list */
list = subwin(dialog, list_height, list_width, y + box_y + 1,
x + box_x + 1);
keypad(list, TRUE);
/* draw a box around the list items */
draw_box(dialog, box_y, box_x, list_height + 2, list_width + 2,
dlg.menubox_border.atr, dlg.menubox.atr);
/* Find length of longest item in order to center checklist */
check_x = 0;
item_foreach()
check_x = MAX(check_x, strlen(item_str()) + 4);
check_x = (list_width - check_x) / 2;
item_x = check_x + 4;
if (choice >= list_height) {
scroll = choice - list_height + 1;
choice -= scroll;
}
/* Print the list */
for (i = 0; i < max_choice; i++) {
item_set(scroll + i);
print_item(list, i, i == choice);
}
print_arrows(dialog, choice, item_count(), scroll,
box_y, box_x + check_x + 5, list_height);
print_buttons(dialog, height, width, 0);
wnoutrefresh(dialog);
wnoutrefresh(list);
doupdate();
while (key != KEY_ESC) {
key = wgetch(dialog);
for (i = 0; i < max_choice; i++) {
item_set(i + scroll);
if (toupper(key) == toupper(item_str()[0]))
break;
}
if (i < max_choice || key == KEY_UP || key == KEY_DOWN ||
key == '+' || key == '-') {
if (key == KEY_UP || key == '-') {
if (!choice) {
if (!scroll)
continue;
/* Scroll list down */
if (list_height > 1) {
/* De-highlight current first item */
item_set(scroll);
print_item(list, 0, FALSE);
scrollok(list, TRUE);
wscrl(list, -1);
scrollok(list, FALSE);
}
scroll--;
item_set(scroll);
print_item(list, 0, TRUE);
print_arrows(dialog, choice, item_count(),
scroll, box_y, box_x + check_x + 5, list_height);
wnoutrefresh(dialog);
wrefresh(list);
continue; /* wait for another key press */
} else
i = choice - 1;
} else if (key == KEY_DOWN || key == '+') {
if (choice == max_choice - 1) {
if (scroll + choice >= item_count() - 1)
continue;
/* Scroll list up */
if (list_height > 1) {
/* De-highlight current last item before scrolling up */
item_set(scroll + max_choice - 1);
print_item(list,
max_choice - 1,
FALSE);
scrollok(list, TRUE);
wscrl(list, 1);
scrollok(list, FALSE);
}
scroll++;
item_set(scroll + max_choice - 1);
print_item(list, max_choice - 1, TRUE);
print_arrows(dialog, choice, item_count(),
scroll, box_y, box_x + check_x + 5, list_height);
wnoutrefresh(dialog);
wrefresh(list);
continue; /* wait for another key press */
} else
i = choice + 1;
}
if (i != choice) {
/* De-highlight current item */
item_set(scroll + choice);
print_item(list, choice, FALSE);
/* Highlight new item */
choice = i;
item_set(scroll + choice);
print_item(list, choice, TRUE);
wnoutrefresh(dialog);
wrefresh(list);
}
continue; /* wait for another key press */
}
switch (key) {
case 'H':
case 'h':
case '?':
button = 1;
/* fall-through */
case 'S':
case 's':
case ' ':
case '\n':
item_foreach()
item_set_selected(0);
item_set(scroll + choice);
item_set_selected(1);
delwin(list);
delwin(dialog);
return button;
case TAB:
case KEY_LEFT:
case KEY_RIGHT:
button = ((key == KEY_LEFT ? --button : ++button) < 0)
? 1 : (button > 1 ? 0 : button);
print_buttons(dialog, height, width, button);
wrefresh(dialog);
break;
case 'X':
case 'x':
key = KEY_ESC;
break;
case KEY_ESC:
key = on_key_esc(dialog);
break;
case KEY_RESIZE:
delwin(list);
delwin(dialog);
on_key_resize();
goto do_resize;
}
/* Now, update everything... */
doupdate();
}
delwin(list);
delwin(dialog);
return key; /* ESC pressed */
}
