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-rw-r--r--gnu/lib/libdialog/checklist.c399
1 files changed, 255 insertions, 144 deletions
diff --git a/gnu/lib/libdialog/checklist.c b/gnu/lib/libdialog/checklist.c
index 0890c00..66f0c8f 100644
--- a/gnu/lib/libdialog/checklist.c
+++ b/gnu/lib/libdialog/checklist.c
@@ -3,6 +3,8 @@
*
* 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
@@ -23,8 +25,10 @@
#include "dialog.priv.h"
-static void print_item(WINDOW *win, unsigned char *tag, unsigned char *item, int status, int choice, int selected);
+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;
@@ -32,23 +36,46 @@ 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 item_no, unsigned char **items, unsigned char *result)
+int dialog_checklist(unsigned char *title, unsigned char *prompt, int height, int width,
+ int list_height, int item_no, 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, *status;
+ l, k, scroll = 0, max_choice, *status;
int redraw_menu = FALSE;
+ char okButton, cancelButton;
WINDOW *dialog, *list;
+ unsigned char **items;
+ dialogMenuItem *ditems;
/* Allocate space for storing item on/off status */
- if ((status = malloc(sizeof(int)*item_no)) == NULL) {
+ if ((status = alloca(sizeof(int) * abs(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] = !strcasecmp(items[i*3 + 2], "on");
+ /* Previous calling syntax, e.g. just a list of strings? */
+ if (item_no >= 0) {
+ items = it;
+ ditems = NULL;
+ /* 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(item_no);
+ ditems = it;
+ 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;
@@ -63,23 +90,23 @@ int dialog_checklist(unsigned char *title, unsigned char *prompt, int height, in
item_x = MAX(item_x, l);
}
if (height < 0)
- height = strheight(prompt)+list_height+4+2;
+ 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;
+ 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;
+ width = COLS;
if (height > LINES)
- 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);
@@ -87,11 +114,11 @@ int dialog_checklist(unsigned char *title, unsigned char *prompt, int height, in
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);
- exit(1);
+ 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);
@@ -113,31 +140,32 @@ int dialog_checklist(unsigned char *title, unsigned char *prompt, int height, in
}
wattrset(dialog, dialog_attr);
wmove(dialog, 1, 2);
- print_autowrap(dialog, prompt, height-1, width-2, width, 1, 2, TRUE, FALSE);
+ print_autowrap(dialog, prompt, height - 1, width - 2, width, 1, 2, TRUE, FALSE);
- list_width = width-6;
+ list_width = width - 6;
getyx(dialog, cur_y, cur_x);
box_y = cur_y + 1;
- box_x = (width - list_width)/2 - 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) {
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);
- exit(1);
+ 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);
+ 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);
+ 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);
@@ -145,49 +173,83 @@ int dialog_checklist(unsigned char *title, unsigned char *prompt, int height, in
x = width/2-11;
y = height-2;
- print_button(dialog, "Cancel", y, x+14, FALSE);
- print_button(dialog, " OK ", y, x, TRUE);
+ /* 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 && result && ditems[OK_BUTTON].fire) {
+ if ((*ditems[OK_BUTTON].fire)(&ditems[OK_BUTTON]) == DITEM_FAILURE)
+ continue;
+ else
+ delwin(dialog);
+ }
+ else {
+ delwin(dialog);
+ *result = '\0';
+ for (i = 0; i < item_no; i++) {
+ if (status[i]) {
+ strcat(result, items[i*3]);
+ strcat(result, "\n");
+ }
+ }
+ }
+ return 0;
+ }
+ /* Shortcut to cancel? */
+ else if (toupper(key) == cancelButton) {
+ if (ditems && result && ditems[CANCEL_BUTTON].fire) {
+ if ((*ditems[CANCEL_BUTTON].fire)(&ditems[CANCEL_BUTTON]) == DITEM_FAILURE)
+ continue;
+ }
+ 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 (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) {
-#ifdef BROKEN_WSCRL
- /* wscrl() in ncurses 1.8.1 seems to be broken, causing a segmentation
- violation when scrolling windows of height = 4, so scrolling is not
- used for now */
- scroll--;
- getyx(dialog, cur_y, cur_x); /* Save cursor position */
- /* Reprint list to scroll down */
- 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);
-
-#else
-
/* 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);
+ 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);
-#endif
+ 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);
@@ -200,30 +262,17 @@ int dialog_checklist(unsigned char *title, unsigned char *prompt, int height, in
else if (key == KEY_DOWN || key == '+') {
if (choice == max_choice - 1) {
if (scroll+choice < item_no-1) {
-#ifdef BROKEN_WSCRL
- /* wscrl() in ncurses 1.8.1 seems to be broken, causing a segmentation
- violation when scrolling windows of height = 4, so scrolling is not
- used for now */
- scroll++;
- getyx(dialog, cur_y, cur_x); /* Save cursor position */
- /* Reprint list to scroll up */
- 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);
-
-#else
-
/* 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);
+ 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);
-#endif
+ 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);
@@ -234,11 +283,49 @@ int dialog_checklist(unsigned char *title, unsigned char *prompt, int height, in
i = choice + 1;
}
else if (key == ' ') { /* Toggle item status */
- status[scroll+choice] = !status[scroll+choice];
+ char lbra = 0, rbra = 0, mark = 0;
+
+ if (ditems) {
+ if (ditems[scroll+choice].fire) {
+ int st = (*ditems[scroll+choice].fire)(&ditems[scroll+choice]);
+
+ if (st == DITEM_LEAVE_MENU) {
+ /* Allow a fire action to take us out of the menu */
+ key = ESC;
+ break;
+ }
+ else if (st == DITEM_FAILURE)
+ continue;
+ else if (st == DITEM_REDRAW) {
+ for (i = 0; i < max_choice; i++) {
+ status[scroll + i] = ditems[scroll + i].checked ?
+ (*ditems[scroll + i].checked)(&ditems[scroll + i]) : FALSE;
+ 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);
+ }
+ }
+ 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);
- wprintw(list, "[%c]", status[scroll+choice] ? 'X' : ' ');
+ 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);
@@ -248,11 +335,13 @@ int dialog_checklist(unsigned char *title, unsigned char *prompt, int height, in
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);
+ 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);
+ 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);
@@ -261,99 +350,118 @@ int dialog_checklist(unsigned char *title, unsigned char *prompt, int height, in
}
switch (key) {
- case KEY_PPAGE:
- if (scroll > height-4) { /* can we go up? */
- scroll -= (height-4);
- } else {
- scroll = 0;
- }
- redraw_menu = TRUE;
- break;
- case KEY_NPAGE:
- if (scroll + list_height >= item_no-1 - list_height) { /* can we go down a full page? */
- scroll = item_no - list_height;
- if (scroll < 0) scroll = 0;
- } else {
- scroll += list_height;
- }
- redraw_menu = TRUE;
- break;
- case KEY_HOME:
+ case KEY_PPAGE: /* can we go up? */
+ if (scroll > height - 4)
+ scroll -= (height-4);
+ else
scroll = 0;
- choice = 0;
- redraw_menu = TRUE;
- break;
- case KEY_END:
+ 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;
- choice = max_choice - 1;
- redraw_menu = TRUE;
- break;
- case 'O':
- case 'o':
- delwin(dialog);
- *result = '\0';
- for (i = 0; i < item_no; i++)
- if (status[i]) {
- strcat(result, items[i*3]);
- strcat(result, "\n");
- }
- free(status);
- return 0;
- case 'C':
- case 'c':
- delwin(dialog);
- free(status);
- return 1;
- case TAB:
- case KEY_BTAB:
- case KEY_LEFT:
- case KEY_RIGHT:
- if (!button) {
- button = 1; /* Indicates "Cancel" button is selected */
- print_button(dialog, " OK ", y, x, FALSE);
- print_button(dialog, "Cancel", y, x+14, TRUE);
- }
- else {
- button = 0; /* Indicates "OK" button is selected */
- print_button(dialog, "Cancel", y, x+14, FALSE);
- print_button(dialog, " OK ", y, x, TRUE);
- }
- wrefresh(dialog);
- break;
- case ' ':
- case '\n':
- case '\r':
- delwin(dialog);
- if (!button) {
+ 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) {
+ if (button) {
+ print_button(dialog, ditems[OK_BUTTON].prompt, y, x,
+ ditems[OK_BUTTON].checked ? (*ditems[OK_BUTTON].checked)(&ditems[OK_BUTTON]) : !button);
+ 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);
+ }
+ else {
+ 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 {
+ if (button) {
+ print_button(dialog, " OK ", y, x, !button);
+ print_button(dialog, "Cancel", y, x + 14, 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 (!button && result) {
+ if (ditems && ditems[button ? CANCEL_BUTTON : OK_BUTTON].fire) {
+ if ((*ditems[button ? CANCEL_BUTTON : OK_BUTTON].fire)(&ditems[button ? CANCEL_BUTTON : OK_BUTTON]) ==
+ DITEM_FAILURE)
+ continue;
+ }
+ else {
*result = '\0';
- for (i = 0; i < item_no; i++)
+ for (i = 0; i < item_no; i++) {
if (status[i]) {
strcat(result, items[i*3]);
strcat(result, "\n");
}
+ }
}
- free(status);
- return button;
- case ESC:
- break;
+ }
+ delwin(dialog);
+ return button;
+ break;
+
+ /* Let me outta here! */
+ case ESC:
+ break;
+
+ /* Help! */
case KEY_F(1):
case '?':
- display_helpfile();
- break;
+ 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);
- 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;
+ 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(dialog);
- free(status);
return -1; /* ESC pressed */
}
/* End of dialog_checklist() */
@@ -362,7 +470,8 @@ int dialog_checklist(unsigned char *title, unsigned char *prompt, int height, in
/*
* Print list item
*/
-static void print_item(WINDOW *win, unsigned char *tag, unsigned char *item, int status, int choice, int selected)
+static void print_item(WINDOW *win, unsigned char *tag, unsigned char *item, int status, int choice, int selected,
+ dialogMenuItem *me)
{
int i;
@@ -373,7 +482,9 @@ static void print_item(WINDOW *win, unsigned char *tag, unsigned char *item, int
waddch(win, ' ');
wmove(win, choice, check_x);
wattrset(win, selected ? check_selected_attr : check_attr);
- wprintw(win, "[%c]", status ? 'X' : ' ');
+ 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);
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