You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
372 lines
9.7 KiB
372 lines
9.7 KiB
/* |
|
* checklist.c -- implements the checklist box |
|
* |
|
* ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk) |
|
* Stuart Herbert - S.Herbert@sheffield.ac.uk: radiolist extension |
|
* Alessandro Rubini - rubini@ipvvis.unipv.it: merged the two |
|
* MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com) |
|
* |
|
* 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. |
|
*/ |
|
|
|
#include "dialog.h" |
|
|
|
static int list_width, check_x, item_x, checkflag; |
|
|
|
/* |
|
* Print list item |
|
*/ |
|
static void |
|
print_item (WINDOW * win, const char *item, int status, |
|
int choice, int selected) |
|
{ |
|
int i; |
|
|
|
/* Clear 'residue' of last item */ |
|
wattrset (win, menubox_attr); |
|
wmove (win, choice, 0); |
|
for (i = 0; i < list_width; i++) |
|
waddch (win, ' '); |
|
|
|
wmove (win, choice, check_x); |
|
wattrset (win, selected ? check_selected_attr : check_attr); |
|
if (checkflag == FLAG_CHECK) |
|
wprintw (win, "[%c]", status ? 'X' : ' '); |
|
else |
|
wprintw (win, "(%c)", status ? 'X' : ' '); |
|
|
|
wattrset (win, selected ? tag_selected_attr : tag_attr); |
|
mvwaddch(win, choice, item_x, item[0]); |
|
wattrset (win, selected ? item_selected_attr : item_attr); |
|
waddstr (win, (char *)item+1); |
|
if (selected) { |
|
wmove (win, choice, check_x+1); |
|
wrefresh (win); |
|
} |
|
} |
|
|
|
/* |
|
* Print the scroll indicators. |
|
*/ |
|
static void |
|
print_arrows (WINDOW * win, int choice, int item_no, int scroll, |
|
int y, int x, int height) |
|
{ |
|
wmove(win, y, x); |
|
|
|
if (scroll > 0) { |
|
wattrset (win, uarrow_attr); |
|
waddch (win, ACS_UARROW); |
|
waddstr (win, "(-)"); |
|
} |
|
else { |
|
wattrset (win, menubox_attr); |
|
waddch (win, ACS_HLINE); |
|
waddch (win, ACS_HLINE); |
|
waddch (win, ACS_HLINE); |
|
waddch (win, ACS_HLINE); |
|
} |
|
|
|
y = y + height + 1; |
|
wmove(win, y, x); |
|
|
|
if ((height < item_no) && (scroll + choice < item_no - 1)) { |
|
wattrset (win, darrow_attr); |
|
waddch (win, ACS_DARROW); |
|
waddstr (win, "(+)"); |
|
} |
|
else { |
|
wattrset (win, menubox_border_attr); |
|
waddch (win, ACS_HLINE); |
|
waddch (win, ACS_HLINE); |
|
waddch (win, ACS_HLINE); |
|
waddch (win, ACS_HLINE); |
|
} |
|
} |
|
|
|
/* |
|
* Display the termination buttons |
|
*/ |
|
static void |
|
print_buttons( WINDOW *dialog, int height, int width, int selected) |
|
{ |
|
int x = width / 2 - 11; |
|
int y = height - 2; |
|
|
|
print_button (dialog, "Select", y, x, selected == 0); |
|
print_button (dialog, " Help ", y, x + 14, selected == 1); |
|
|
|
wmove(dialog, y, x+1 + 14*selected); |
|
wrefresh (dialog); |
|
} |
|
|
|
/* |
|
* 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 *prompt, int height, int width, |
|
int list_height, int item_no, struct dialog_list_item ** items, |
|
int flag) |
|
|
|
{ |
|
int i, x, y, box_x, box_y; |
|
int key = 0, button = 0, choice = 0, scroll = 0, max_choice, *status; |
|
WINDOW *dialog, *list; |
|
|
|
checkflag = flag; |
|
|
|
/* Allocate space for storing item on/off status */ |
|
if ((status = malloc (sizeof (int) * item_no)) == NULL) { |
|
endwin (); |
|
fprintf (stderr, |
|
"\nCan't allocate memory in dialog_checklist().\n"); |
|
exit (-1); |
|
} |
|
|
|
/* Initializes status */ |
|
for (i = 0; i < item_no; i++) { |
|
status[i] = (items[i]->selected == 1); /* ON */ |
|
if ((!choice && status[i]) || items[i]->selected == 2) /* SELECTED */ |
|
choice = i + 1; |
|
} |
|
if (choice) |
|
choice--; |
|
|
|
max_choice = MIN (list_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); |
|
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); |
|
|
|
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, |
|
menubox_border_attr, menubox_attr); |
|
|
|
/* Find length of longest item in order to center checklist */ |
|
check_x = 0; |
|
for (i = 0; i < item_no; i++) |
|
check_x = MAX (check_x, + strlen (items[i]->name) + 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++) { |
|
print_item (list, items[scroll + i]->name, |
|
status[i+scroll], i, i == choice); |
|
} |
|
|
|
print_arrows(dialog, choice, item_no, scroll, |
|
box_y, box_x + check_x + 5, list_height); |
|
|
|
print_buttons(dialog, height, width, 0); |
|
|
|
wnoutrefresh (list); |
|
wnoutrefresh (dialog); |
|
doupdate (); |
|
|
|
while (key != ESC) { |
|
key = wgetch (dialog); |
|
|
|
for (i = 0; i < max_choice; i++) |
|
if (toupper(key) == toupper(items[scroll + i]->name[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 */ |
|
print_item (list, items[scroll]->name, |
|
status[scroll], 0, FALSE); |
|
scrollok (list, TRUE); |
|
wscrl (list, -1); |
|
scrollok (list, FALSE); |
|
} |
|
scroll--; |
|
print_item (list, items[scroll]->name, |
|
status[scroll], 0, TRUE); |
|
wnoutrefresh (list); |
|
|
|
print_arrows(dialog, choice, item_no, scroll, |
|
box_y, box_x + check_x + 5, list_height); |
|
|
|
wrefresh (dialog); |
|
|
|
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_no - 1) |
|
continue; |
|
/* Scroll list up */ |
|
if (list_height > 1) { |
|
/* De-highlight current last item before scrolling up */ |
|
print_item (list, items[scroll + max_choice - 1]->name, |
|
status[scroll + max_choice - 1], |
|
max_choice - 1, FALSE); |
|
scrollok (list, TRUE); |
|
scroll (list); |
|
scrollok (list, FALSE); |
|
} |
|
scroll++; |
|
print_item (list, items[scroll + max_choice - 1]->name, |
|
status[scroll + max_choice - 1], |
|
max_choice - 1, TRUE); |
|
wnoutrefresh (list); |
|
|
|
print_arrows(dialog, choice, item_no, scroll, |
|
box_y, box_x + check_x + 5, list_height); |
|
|
|
wrefresh (dialog); |
|
|
|
continue; /* wait for another key press */ |
|
} else |
|
i = choice + 1; |
|
} |
|
if (i != choice) { |
|
/* De-highlight current item */ |
|
print_item (list, items[scroll + choice]->name, |
|
status[scroll + choice], choice, FALSE); |
|
/* Highlight new item */ |
|
choice = i; |
|
print_item (list, items[scroll + choice]->name, |
|
status[scroll + choice], choice, TRUE); |
|
wnoutrefresh (list); |
|
wrefresh (dialog); |
|
} |
|
continue; /* wait for another key press */ |
|
} |
|
switch (key) { |
|
case 'H': |
|
case 'h': |
|
case '?': |
|
for (i = 0; i < item_no; i++) |
|
items[i]->selected = 0; |
|
items[scroll + choice]->selected = 1; |
|
delwin (dialog); |
|
free (status); |
|
return 1; |
|
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 'S': |
|
case 's': |
|
case ' ': |
|
case '\n': |
|
if (!button) { |
|
if (flag == FLAG_CHECK) { |
|
status[scroll + choice] = !status[scroll + choice]; |
|
wmove (list, choice, check_x); |
|
wattrset (list, check_selected_attr); |
|
wprintw (list, "[%c]", status[scroll + choice] ? 'X' : ' '); |
|
} else { |
|
if (!status[scroll + choice]) { |
|
for (i = 0; i < item_no; i++) |
|
status[i] = 0; |
|
status[scroll + choice] = 1; |
|
for (i = 0; i < max_choice; i++) |
|
print_item (list, items[scroll + i]->name, |
|
status[scroll + i], i, i == choice); |
|
} |
|
} |
|
wnoutrefresh (list); |
|
wrefresh (dialog); |
|
|
|
for (i = 0; i < item_no; i++) { |
|
items[i]->selected = status[i]; |
|
} |
|
} else { |
|
for (i = 0; i < item_no; i++) |
|
items[i]->selected = 0; |
|
items[scroll + choice]->selected = 1; |
|
} |
|
delwin (dialog); |
|
free (status); |
|
return button; |
|
case 'X': |
|
case 'x': |
|
key = ESC; |
|
case ESC: |
|
break; |
|
} |
|
|
|
/* Now, update everything... */ |
|
doupdate (); |
|
} |
|
|
|
|
|
delwin (dialog); |
|
free (status); |
|
return -1; /* ESC pressed */ |
|
}
|
|
|