540 lines
16 KiB
C
540 lines
16 KiB
C
/*
|
|
* checklist.c -- implements the checklist box
|
|
*
|
|
* AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
|
|
*
|
|
* Substantial rennovation: 12/18/95, Jordan K. Hubbard
|
|
*
|
|
* 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>
|
|
#include "dialog.priv.h"
|
|
|
|
|
|
static void print_item(WINDOW *win, unsigned char *tag, unsigned char *item, int status, int choice, int selected,
|
|
dialogMenuItem *me);
|
|
|
|
#define DREF(di, item) ((di) ? &((di)[(item)]) : NULL)
|
|
|
|
static int list_width, check_x, item_x;
|
|
|
|
|
|
/*
|
|
* Display a dialog box with a list of options that can be turned on or off
|
|
*/
|
|
int
|
|
dialog_checklist(unsigned char *title, unsigned char *prompt, int height, int width,
|
|
int list_height, int cnt, void *it, unsigned char *result)
|
|
{
|
|
int i, j, x, y, cur_x, cur_y, box_x, box_y, key = 0, button = 0, choice = 0,
|
|
l, k, scroll = 0, max_choice, item_no = 0, *status;
|
|
int redraw_menu = FALSE;
|
|
char okButton, cancelButton;
|
|
WINDOW *dialog, *list;
|
|
unsigned char **items = NULL;
|
|
dialogMenuItem *ditems;
|
|
|
|
/* Allocate space for storing item on/off status */
|
|
if ((status = alloca(sizeof(int) * abs(cnt))) == NULL) {
|
|
endwin();
|
|
fprintf(stderr, "\nCan't allocate memory in dialog_checklist().\n");
|
|
exit(-1);
|
|
}
|
|
|
|
draw:
|
|
/* Previous calling syntax, e.g. just a list of strings? */
|
|
if (cnt >= 0) {
|
|
items = it;
|
|
ditems = NULL;
|
|
item_no = cnt;
|
|
/* Initializes status */
|
|
for (i = 0; i < item_no; i++)
|
|
status[i] = !strcasecmp(items[i*3 + 2], "on");
|
|
}
|
|
/* It's the new specification format - fake the rest of the code out */
|
|
else {
|
|
item_no = abs(cnt);
|
|
ditems = it;
|
|
if (!items)
|
|
items = (unsigned char **)alloca((item_no * 3) * sizeof(unsigned char *));
|
|
|
|
/* Initializes status */
|
|
for (i = 0; i < item_no; i++) {
|
|
status[i] = ditems[i].checked ? ditems[i].checked(&ditems[i]) : FALSE;
|
|
items[i*3] = ditems[i].prompt;
|
|
items[i*3 + 1] = ditems[i].title;
|
|
items[i*3 + 2] = status[i] ? "on" : "off";
|
|
}
|
|
}
|
|
max_choice = MIN(list_height, item_no);
|
|
|
|
check_x = 0;
|
|
item_x = 0;
|
|
/* Find length of longest item in order to center checklist */
|
|
for (i = 0; i < item_no; i++) {
|
|
l = strlen(items[i*3]);
|
|
for (j = 0; j < item_no; j++) {
|
|
k = strlen(items[j*3 + 1]);
|
|
check_x = MAX(check_x, l + k + 6);
|
|
}
|
|
item_x = MAX(item_x, l);
|
|
}
|
|
if (height < 0)
|
|
height = strheight(prompt)+list_height+4+2;
|
|
if (width < 0) {
|
|
i = strwidth(prompt);
|
|
j = ((title != NULL) ? strwidth(title) : 0);
|
|
width = MAX(i,j);
|
|
width = MAX(width,check_x+4)+4;
|
|
}
|
|
width = MAX(width,24);
|
|
|
|
if (width > COLS)
|
|
width = COLS;
|
|
if (height > LINES)
|
|
height = LINES;
|
|
/* center dialog box on screen */
|
|
x = (COLS - width)/2;
|
|
y = (LINES - height)/2;
|
|
|
|
#ifdef HAVE_NCURSES
|
|
if (use_shadow)
|
|
draw_shadow(stdscr, y, x, height, width);
|
|
#endif
|
|
dialog = newwin(height, width, y, x);
|
|
if (dialog == NULL) {
|
|
endwin();
|
|
fprintf(stderr, "\nnewwin(%d,%d,%d,%d) failed, maybe wrong dims\n", height,width, y, x);
|
|
return -1;
|
|
}
|
|
keypad(dialog, TRUE);
|
|
|
|
draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
|
|
wattrset(dialog, border_attr);
|
|
wmove(dialog, height-3, 0);
|
|
waddch(dialog, ACS_LTEE);
|
|
for (i = 0; i < width-2; i++)
|
|
waddch(dialog, ACS_HLINE);
|
|
wattrset(dialog, dialog_attr);
|
|
waddch(dialog, ACS_RTEE);
|
|
wmove(dialog, height-2, 1);
|
|
for (i = 0; i < width-2; i++)
|
|
waddch(dialog, ' ');
|
|
|
|
if (title != NULL) {
|
|
wattrset(dialog, title_attr);
|
|
wmove(dialog, 0, (width - strlen(title))/2 - 1);
|
|
waddch(dialog, ' ');
|
|
waddstr(dialog, title);
|
|
waddch(dialog, ' ');
|
|
}
|
|
wattrset(dialog, dialog_attr);
|
|
wmove(dialog, 1, 2);
|
|
print_autowrap(dialog, prompt, height - 1, width - 2, width, 1, 2, TRUE, FALSE);
|
|
|
|
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 = subwin(dialog, list_height, list_width, y + box_y + 1, x + box_x + 1);
|
|
if (list == NULL) {
|
|
delwin(dialog);
|
|
endwin();
|
|
fprintf(stderr, "\nsubwin(dialog,%d,%d,%d,%d) failed, maybe wrong dims\n", list_height, list_width,
|
|
y + box_y + 1, x + box_x + 1);
|
|
return -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);
|
|
|
|
check_x = (list_width - check_x) / 2;
|
|
item_x = check_x + item_x + 6;
|
|
|
|
/* Print the list */
|
|
for (i = 0; i < max_choice; i++)
|
|
print_item(list, items[i*3], items[i*3 + 1], status[i], i, i == choice, DREF(ditems, i));
|
|
wnoutrefresh(list);
|
|
print_arrows(dialog, scroll, list_height, item_no, box_x, box_y, check_x + 4, cur_x, cur_y);
|
|
|
|
display_helpline(dialog, height-1, width);
|
|
|
|
x = width/2-11;
|
|
y = height-2;
|
|
/* Is this a fancy new style argument string where we get to override
|
|
* the buttons, or an old style one where they're fixed?
|
|
*/
|
|
if (ditems && result) {
|
|
cancelButton = toupper(ditems[CANCEL_BUTTON].prompt[0]);
|
|
print_button(dialog, ditems[CANCEL_BUTTON].prompt, y, x + strlen(ditems[OK_BUTTON].prompt) + 5,
|
|
ditems[CANCEL_BUTTON].checked ? ditems[CANCEL_BUTTON].checked(&ditems[CANCEL_BUTTON]) : FALSE);
|
|
okButton = toupper(ditems[OK_BUTTON].prompt[0]);
|
|
print_button(dialog, ditems[OK_BUTTON].prompt, y, x,
|
|
ditems[OK_BUTTON].checked ? ditems[OK_BUTTON].checked(&ditems[OK_BUTTON]) : TRUE);
|
|
}
|
|
else {
|
|
cancelButton = 'C';
|
|
print_button(dialog, "Cancel", y, x + 14, FALSE);
|
|
okButton = 'O';
|
|
print_button(dialog, " OK ", y, x, TRUE);
|
|
}
|
|
wrefresh(dialog);
|
|
|
|
while (key != ESC) {
|
|
key = wgetch(dialog);
|
|
|
|
/* Shortcut to OK? */
|
|
if (toupper(key) == okButton) {
|
|
if (ditems) {
|
|
if (result && ditems[OK_BUTTON].fire) {
|
|
int st;
|
|
WINDOW *save;
|
|
|
|
save = dupwin(newscr);
|
|
st = ditems[OK_BUTTON].fire(&ditems[OK_BUTTON]);
|
|
if (st & DITEM_RESTORE) {
|
|
touchwin(save);
|
|
wrefresh(save);
|
|
}
|
|
delwin(save);
|
|
}
|
|
}
|
|
else if (result) {
|
|
*result = '\0';
|
|
for (i = 0; i < item_no; i++) {
|
|
if (status[i]) {
|
|
strcat(result, items[i*3]);
|
|
strcat(result, "\n");
|
|
}
|
|
}
|
|
}
|
|
delwin(list);
|
|
delwin(dialog);
|
|
return 0;
|
|
}
|
|
/* Shortcut to cancel? */
|
|
else if (toupper(key) == cancelButton) {
|
|
if (ditems && result && ditems[CANCEL_BUTTON].fire) {
|
|
int st;
|
|
WINDOW *save;
|
|
|
|
save = dupwin(newscr);
|
|
st = ditems[CANCEL_BUTTON].fire(&ditems[CANCEL_BUTTON]);
|
|
if (st & DITEM_RESTORE) {
|
|
touchwin(save);
|
|
wrefresh(save);
|
|
wmove(dialog, cur_y, cur_x);
|
|
}
|
|
delwin(save);
|
|
}
|
|
delwin(list);
|
|
delwin(dialog);
|
|
return 1;
|
|
}
|
|
|
|
/* Check if key pressed matches first character of any item tag in list */
|
|
for (i = 0; i < max_choice; i++)
|
|
if (key < 0x100 && toupper(key) == toupper(items[(scroll+i)*3][0]))
|
|
break;
|
|
|
|
if (i < max_choice || (key >= '1' && key <= MIN('9', '0'+max_choice)) || key == KEY_UP ||
|
|
key == KEY_DOWN || key == ' ' || key == '+' || key == '-' ) {
|
|
|
|
if (key >= '1' && key <= MIN('9', '0'+max_choice))
|
|
i = key - '1';
|
|
|
|
else if (key == KEY_UP || key == '-') {
|
|
if (!choice) {
|
|
if (scroll) {
|
|
/* Scroll list down */
|
|
getyx(dialog, cur_y, cur_x); /* Save cursor position */
|
|
if (list_height > 1) {
|
|
/* De-highlight current first item before scrolling down */
|
|
print_item(list, items[scroll*3], items[scroll*3 + 1], status[scroll], 0, FALSE, DREF(ditems, scroll));
|
|
scrollok(list, TRUE);
|
|
wscrl(list, -1);
|
|
scrollok(list, FALSE);
|
|
}
|
|
scroll--;
|
|
print_item(list, items[scroll*3], items[scroll*3 + 1], status[scroll], 0, TRUE, DREF(ditems, scroll));
|
|
wnoutrefresh(list);
|
|
print_arrows(dialog, scroll, list_height, item_no, box_x, box_y, check_x + 4, cur_x, cur_y);
|
|
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) {
|
|
/* Scroll list up */
|
|
getyx(dialog, cur_y, cur_x); /* Save cursor position */
|
|
if (list_height > 1) {
|
|
/* De-highlight current last item before scrolling up */
|
|
print_item(list, items[(scroll+max_choice-1)*3], items[(scroll+max_choice-1)*3 + 1],
|
|
status[scroll+max_choice-1], max_choice-1, FALSE, DREF(ditems, scroll + max_choice - 1));
|
|
scrollok(list, TRUE);
|
|
scroll(list);
|
|
scrollok(list, FALSE);
|
|
}
|
|
scroll++;
|
|
print_item(list, items[(scroll+max_choice-1)*3], items[(scroll+max_choice-1)*3 + 1],
|
|
status[scroll+max_choice-1], max_choice-1, TRUE, DREF(ditems, scroll + max_choice - 1));
|
|
wnoutrefresh(list);
|
|
print_arrows(dialog, scroll, list_height, item_no, box_x, box_y, check_x + 4, cur_x, cur_y);
|
|
wrefresh(dialog);
|
|
}
|
|
continue; /* wait for another key press */
|
|
}
|
|
else
|
|
i = choice + 1;
|
|
}
|
|
else if (key == ' ') { /* Toggle item status */
|
|
char lbra = 0, rbra = 0, mark = 0;
|
|
|
|
if (ditems) {
|
|
if (ditems[scroll + choice].fire) {
|
|
int st;
|
|
WINDOW *save;
|
|
|
|
save = dupwin(newscr);
|
|
st = ditems[scroll + choice].fire(&ditems[scroll + choice]);
|
|
if (st & DITEM_RESTORE) {
|
|
touchwin(save);
|
|
wrefresh(save);
|
|
}
|
|
if (st & DITEM_REDRAW) {
|
|
wmove(dialog, cur_y, cur_x); /* Restore cursor to previous position */
|
|
for (i = 0; i < item_no; i++)
|
|
status[i] = ditems[i].checked ? ditems[i].checked(&ditems[i]) : FALSE;
|
|
for (i = 0; i < max_choice; i++) {
|
|
print_item(list, items[(scroll + i) * 3], items[(scroll + i) * 3 + 1],
|
|
status[scroll + i], i, i == choice, DREF(ditems, scroll + i));
|
|
}
|
|
wnoutrefresh(list);
|
|
print_arrows(dialog, scroll, list_height, item_no, box_x, box_y, check_x + 4,
|
|
cur_x, cur_y);
|
|
wrefresh(dialog);
|
|
}
|
|
delwin(save);
|
|
if (st & DITEM_LEAVE_MENU) {
|
|
/* Allow a fire action to take us out of the menu */
|
|
key = ESC;
|
|
break;
|
|
}
|
|
else if (st & DITEM_RECREATE) {
|
|
delwin(list);
|
|
delwin(dialog);
|
|
dialog_clear();
|
|
goto draw;
|
|
}
|
|
}
|
|
status[scroll + choice] = ditems[scroll + choice].checked ?
|
|
ditems[scroll + choice].checked(&ditems[scroll + choice]) : FALSE;
|
|
lbra = ditems[scroll + choice].lbra;
|
|
rbra = ditems[scroll + choice].rbra;
|
|
mark = ditems[scroll + choice].mark;
|
|
}
|
|
else
|
|
status[scroll + choice] = !status[scroll + choice];
|
|
getyx(dialog, cur_y, cur_x); /* Save cursor position */
|
|
wmove(list, choice, check_x);
|
|
wattrset(list, check_selected_attr);
|
|
if (!lbra)
|
|
lbra = '[';
|
|
if (!rbra)
|
|
rbra = ']';
|
|
if (!mark)
|
|
mark = 'X';
|
|
wprintw(list, "%c%c%c", lbra, status[scroll+choice] ? mark : ' ', rbra);
|
|
wnoutrefresh(list);
|
|
wmove(dialog, cur_y, cur_x); /* Restore cursor to previous position */
|
|
wrefresh(dialog);
|
|
continue; /* wait for another key press */
|
|
}
|
|
|
|
if (i != choice) {
|
|
/* De-highlight current item */
|
|
getyx(dialog, cur_y, cur_x); /* Save cursor position */
|
|
print_item(list, items[(scroll+choice)*3], items[(scroll+choice)*3 + 1], status[scroll+choice], choice, FALSE,
|
|
DREF(ditems, scroll + choice));
|
|
|
|
/* Highlight new item */
|
|
choice = i;
|
|
print_item(list, items[(scroll+choice)*3], items[(scroll+choice)*3 + 1], status[scroll+choice], choice, TRUE,
|
|
DREF(ditems, scroll + choice));
|
|
wnoutrefresh(list);
|
|
wmove(dialog, cur_y, cur_x); /* Restore cursor to previous position */
|
|
wrefresh(dialog);
|
|
}
|
|
continue; /* wait for another key press */
|
|
}
|
|
|
|
switch (key) {
|
|
case KEY_PPAGE: /* can we go up? */
|
|
if (scroll > height - 4)
|
|
scroll -= (height-4);
|
|
else
|
|
scroll = 0;
|
|
redraw_menu = TRUE;
|
|
break;
|
|
|
|
case KEY_NPAGE: /* can we go down a full page? */
|
|
if (scroll + list_height >= item_no-1 - list_height) {
|
|
scroll = item_no - list_height;
|
|
if (scroll < 0)
|
|
scroll = 0;
|
|
}
|
|
else
|
|
scroll += list_height;
|
|
redraw_menu = TRUE;
|
|
break;
|
|
|
|
case KEY_HOME: /* go to the top */
|
|
scroll = 0;
|
|
choice = 0;
|
|
redraw_menu = TRUE;
|
|
break;
|
|
|
|
case KEY_END: /* Go to the bottom */
|
|
scroll = item_no - list_height;
|
|
if (scroll < 0)
|
|
scroll = 0;
|
|
choice = max_choice - 1;
|
|
redraw_menu = TRUE;
|
|
break;
|
|
|
|
/* swap the selection of OK/Cancel buttons */
|
|
case TAB:
|
|
case KEY_BTAB:
|
|
case KEY_LEFT:
|
|
case KEY_RIGHT:
|
|
button = !button;
|
|
if (ditems && result) {
|
|
print_button(dialog, ditems[CANCEL_BUTTON].prompt, y, x + strlen(ditems[OK_BUTTON].prompt) + 5,
|
|
ditems[CANCEL_BUTTON].checked ? ditems[CANCEL_BUTTON].checked(&ditems[CANCEL_BUTTON]) : button);
|
|
print_button(dialog, ditems[OK_BUTTON].prompt, y, x,
|
|
ditems[OK_BUTTON].checked ? ditems[OK_BUTTON].checked(&ditems[OK_BUTTON]) : !button);
|
|
}
|
|
else {
|
|
print_button(dialog, "Cancel", y, x + 14, button);
|
|
print_button(dialog, " OK ", y, x, !button);
|
|
}
|
|
wrefresh(dialog);
|
|
break;
|
|
|
|
/* Select either the OK or Cancel button */
|
|
case '\n':
|
|
case '\r':
|
|
if (ditems) {
|
|
if (result && ditems[button ? CANCEL_BUTTON : OK_BUTTON].fire) {
|
|
int st;
|
|
WINDOW *save = dupwin(newscr);
|
|
|
|
st = ditems[button ? CANCEL_BUTTON : OK_BUTTON].fire(&ditems[button ? CANCEL_BUTTON : OK_BUTTON]);
|
|
if (st & DITEM_RESTORE) {
|
|
touchwin(save);
|
|
wrefresh(save);
|
|
}
|
|
delwin(save);
|
|
if (st == DITEM_FAILURE)
|
|
continue;
|
|
}
|
|
}
|
|
else if (result) {
|
|
*result = '\0';
|
|
for (i = 0; i < item_no; i++) {
|
|
if (status[i]) {
|
|
strcat(result, items[i*3]);
|
|
strcat(result, "\n");
|
|
}
|
|
}
|
|
}
|
|
delwin(list);
|
|
delwin(dialog);
|
|
return button;
|
|
break;
|
|
|
|
/* Let me outta here! */
|
|
case ESC:
|
|
break;
|
|
|
|
/* Help! */
|
|
case KEY_F(1):
|
|
case '?':
|
|
display_helpfile();
|
|
break;
|
|
}
|
|
|
|
if (redraw_menu) {
|
|
for (i = 0; i < max_choice; i++)
|
|
print_item(list, items[(scroll+i)*3], items[(scroll+i)*3 + 1], status[scroll+i], i, i == choice,
|
|
DREF(ditems, scroll + i));
|
|
wnoutrefresh(list);
|
|
print_arrows(dialog, scroll, list_height, item_no, box_x, box_y, check_x + 4, cur_x, cur_y);
|
|
wrefresh(dialog);
|
|
redraw_menu = FALSE;
|
|
}
|
|
}
|
|
delwin(list);
|
|
delwin(dialog);
|
|
return -1; /* ESC pressed */
|
|
}
|
|
/* End of dialog_checklist() */
|
|
|
|
|
|
/*
|
|
* Print list item
|
|
*/
|
|
static void
|
|
print_item(WINDOW *win, unsigned char *tag, unsigned char *item, int status, int choice, int selected,
|
|
dialogMenuItem *me)
|
|
{
|
|
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);
|
|
wprintw(win, "%c%c%c", me && me->lbra ? me->lbra : '[',
|
|
status ? me && me->mark ? me->mark : 'X' : ' ',
|
|
me && me->rbra ? me->rbra : ']');
|
|
wattrset(win, menubox_attr);
|
|
waddch(win, ' ');
|
|
wattrset(win, selected ? tag_key_selected_attr : tag_key_attr);
|
|
waddch(win, tag[0]);
|
|
wattrset(win, selected ? tag_selected_attr : tag_attr);
|
|
waddstr(win, tag + 1);
|
|
wmove(win, choice, item_x);
|
|
wattrset(win, selected ? item_selected_attr : item_attr);
|
|
waddstr(win, item);
|
|
/* If have a selection handler for this, call it */
|
|
if (me && me->selected) {
|
|
wrefresh(win);
|
|
me->selected(me, selected);
|
|
}
|
|
}
|
|
/* End of print_item() */
|