bfu.c

来自「this is the file used to browse web」· C语言 代码 · 共 1,481 行 · 第 1/4 页

	checkboxes_width(term, dlg->dlg->udata, &max, max_text_width);
	checkboxes_width(term, dlg->dlg->udata, &min, min_text_width);
	max_buttons_width(term, dlg->items + dlg->n - 2, 2, &max);
	min_buttons_width(term, dlg->items + dlg->n - 2, 2, &min);
	w = term->x * 9 / 10 - 2 * DIALOG_LB;
	if (w > max) w = max;
	if (w < min) w = min;
	if (w > term->x - 2 * DIALOG_LB) w = term->x - 2 * DIALOG_LB;
	if (w < 5) w = 5;
	rw = 0;
	dlg_format_checkboxes(NULL, term, dlg->items, dlg->n - 2, 0, &y, w, &rw, dlg->dlg->udata);
	y++;
	dlg_format_buttons(NULL, term, dlg->items + dlg->n - 2, 2, 0, &y, w, &rw, AL_CENTER);
	w = rw;
	dlg->xw = rw + 2 * DIALOG_LB;
	dlg->yw = y + 2 * DIALOG_TB;
	center_dlg(dlg);
	draw_dlg(dlg);
	y = dlg->y + DIALOG_TB + 1;
	dlg_format_checkboxes(term, term, dlg->items, dlg->n - 2, dlg->x + DIALOG_LB, &y, w, NULL, dlg->dlg->udata);
	y++;
	dlg_format_buttons(term, term, dlg->items + dlg->n - 2, 2, dlg->x + DIALOG_LB, &y, w, &rw, AL_CENTER);
}

void group_fn(struct dialog_data *dlg)
{
	struct terminal *term = dlg->win->term;
	int max = 0, min = 0;
	int w, rw;
	int y = 0;
	max_group_width(term, dlg->dlg->udata, dlg->items, dlg->n - 2, &max);
	min_group_width(term, dlg->dlg->udata, dlg->items, dlg->n - 2, &min);
	max_buttons_width(term, dlg->items + dlg->n - 2, 2, &max);
	min_buttons_width(term, dlg->items + dlg->n - 2, 2, &min);
	w = term->x * 9 / 10 - 2 * DIALOG_LB;
	if (w > max) w = max;
	if (w < min) w = min;
	if (w > term->x - 2 * DIALOG_LB) w = term->x - 2 * DIALOG_LB;
	if (w < 1) w = 1;
	rw = 0;
	dlg_format_group(NULL, term, dlg->dlg->udata, dlg->items, dlg->n - 2, 0, &y, w, &rw);
	y++;
	dlg_format_buttons(NULL, term, dlg->items + dlg->n - 2, 2, 0, &y, w, &rw, AL_CENTER);
	w = rw;
	dlg->xw = rw + 2 * DIALOG_LB;
	dlg->yw = y + 2 * DIALOG_TB;
	center_dlg(dlg);
	draw_dlg(dlg);
	y = dlg->y + DIALOG_TB + 1;
	dlg_format_group(term, term, dlg->dlg->udata, dlg->items, dlg->n - 2, dlg->x + DIALOG_LB, &y, w, NULL);
	y++;
	dlg_format_buttons(term, term, dlg->items + dlg->n - 2, 2, dlg->x + DIALOG_LB, &y, w, &rw, AL_CENTER);
}

void msg_box_fn(struct dialog_data *dlg)
{
	struct terminal *term = dlg->win->term;
	int max = 0, min = 0;
	int w, rw;
	int y = 0;
	unsigned char **ptr;
	unsigned char *text = init_str();
	int textl = 0;
	for (ptr = dlg->dlg->udata; *ptr; ptr++) add_to_str(&text, &textl, _(*ptr, term));
	max_text_width(term, text, &max);
	min_text_width(term, text, &min);
	max_buttons_width(term, dlg->items, dlg->n, &max);
	min_buttons_width(term, dlg->items, dlg->n, &min);
	w = term->x * 9 / 10 - 2 * DIALOG_LB;
	if (w > max) w = max;
	if (w < min) w = min;
	if (w > term->x - 2 * DIALOG_LB) w = term->x - 2 * DIALOG_LB;
	if (w < 1) w = 1;
	rw = 0;
	dlg_format_text(NULL, term, text, 0, &y, w, &rw, COLOR_DIALOG_TEXT, dlg->dlg->align);
	y++;
	dlg_format_buttons(NULL, term, dlg->items, dlg->n, 0, &y, w, &rw, AL_CENTER);
	w = rw;
	dlg->xw = rw + 2 * DIALOG_LB;
	dlg->yw = y + 2 * DIALOG_TB;
	center_dlg(dlg);
	draw_dlg(dlg);
	y = dlg->y + DIALOG_TB + 1;
	dlg_format_text(term, term, text, dlg->x + DIALOG_LB, &y, w, NULL, COLOR_DIALOG_TEXT, dlg->dlg->align);
	y++;
	dlg_format_buttons(term, term, dlg->items, dlg->n, dlg->x + DIALOG_LB, &y, w, NULL, AL_CENTER);
	mem_free(text);
}

int msg_box_button(struct dialog_data *dlg, struct dialog_item_data *di)
{
	void (*fn)(void *) = (void (*)(void *))di->item->udata;
	void *data = dlg->dlg->udata2;
	/*struct dialog *dl = dlg->dlg;*/
	if (fn) fn(data);
	cancel_dialog(dlg, di);
	return 0;
}

void msg_box(struct terminal *term, struct memory_list *ml, unsigned char *title, int align, /*unsigned char *text, void *data, int n,*/ ...)
{
	struct dialog *dlg;
	int i;
	int n;
	unsigned char *text;
	unsigned char **udata;
	void *udata2;
	int udatan;
	va_list ap;
	va_start(ap, align);
	udata = DUMMY;
	udatan = 0;
	do {
		text = va_arg(ap, unsigned char *);
		na_kovarne__to_je_narez:
		udatan++;
		if ((unsigned)udatan > MAXINT / sizeof(unsigned char *)) overalloc();
		udata = mem_realloc(udata, udatan * sizeof(unsigned char *));
		udata[udatan - 1] = text;
		if (text && !(align & AL_EXTD_TEXT)) {
			text = NULL;
			goto na_kovarne__to_je_narez;
		}
	} while (text);
	udata2 = va_arg(ap, void *);
	n = va_arg(ap, int);
	if ((unsigned)n > (MAXINT - sizeof(struct dialog)) / sizeof(struct dialog_item) - 1) overalloc();
	dlg = mem_alloc(sizeof(struct dialog) + (n + 1) * sizeof(struct dialog_item));
	memset(dlg, 0, sizeof(struct dialog) + (n + 1) * sizeof(struct dialog_item));
	dlg->title = title;
	dlg->fn = msg_box_fn;
	dlg->udata = udata;
	dlg->udata2 = udata2;
	dlg->align = align;
	for (i = 0; i < n; i++) {
		unsigned char *m;
		void (*fn)(void *);
		int flags;
		m = va_arg(ap, unsigned char *);
		fn = va_arg(ap, void *);
		flags = va_arg(ap, int);
		if (!m) {
			i--, n--;
			continue;
		}
		dlg->items[i].type = D_BUTTON;
		dlg->items[i].gid = flags;
		dlg->items[i].fn = msg_box_button;
		dlg->items[i].dlen = 0;
		dlg->items[i].text = m;
		dlg->items[i].udata = fn;
	}
	va_end(ap);
	dlg->items[i].type = D_END;
	add_to_ml(&ml, dlg, udata, NULL);
	do_dialog(term, dlg, ml);
}

void add_to_history(struct history *h, unsigned char *t)
{
	struct history_item *hi, *hs;
	size_t l;
	if (!h || !t || !*t) return;
	l = strlen(t) + 1;
	if (l > MAXINT - sizeof(struct history_item)) overalloc();
	hi = mem_alloc(sizeof(struct history_item) + l);
	memcpy(hi->d, t, l);
	foreach(hs, h->items) if (!strcmp(hs->d, t)) {
		struct history_item *hd = hs;
		hs = hs->prev;
		del_from_list(hd);
		mem_free(hd);
		h->n--;
	}
	add_to_list(h->items, hi);
	h->n++;
	while (h->n > MAX_HISTORY_ITEMS) {
		struct history_item *hd = h->items.prev;
		if ((void *)hd == &h->items) {
			internal("history is empty");
			h->n = 0;
			return;
		}
		del_from_list(hd);
		mem_free(hd);
		h->n--;
	}
}

int input_field_cancel(struct dialog_data *dlg, struct dialog_item_data *di)
{
	void (*fn)(void *) = di->item->udata;
	void *data = dlg->dlg->udata2;
	if (fn) fn(data);
	cancel_dialog(dlg, di);
	return 0;
}

int input_field_ok(struct dialog_data *dlg, struct dialog_item_data *di)
{
	void (*fn)(void *, unsigned char *) = di->item->udata;
	void *data = dlg->dlg->udata2;
	unsigned char *text = dlg->items->cdata;
	if (check_dialog(dlg)) return 1;
	add_to_history(dlg->dlg->items->history, text);
	if (fn) fn(data, text);
	ok_dialog(dlg, di);
	return 0;
}

void input_field_fn(struct dialog_data *dlg)
{
	struct terminal *term = dlg->win->term;
	int max = 0, min = 0;
	int w, rw;
	int y = -1;
	max_text_width(term, dlg->dlg->udata, &max);
	min_text_width(term, dlg->dlg->udata, &min);
	max_buttons_width(term, dlg->items + 1, 2, &max);
	min_buttons_width(term, dlg->items + 1, 2, &min);
	if (max < dlg->dlg->items->dlen) max = dlg->dlg->items->dlen;
	w = term->x * 9 / 10 - 2 * DIALOG_LB;
	if (w > max) w = max;
	if (w < min) w = min;
	rw = 0; /* !!! FIXME: input field */
	dlg_format_text(NULL, term, dlg->dlg->udata, 0, &y, w, &rw, COLOR_DIALOG_TEXT, AL_LEFT);
	dlg_format_field(NULL, term, dlg->items, 0, &y, w, &rw, AL_LEFT);
	y++;
	dlg_format_buttons(NULL, term, dlg->items + 1, 2, 0, &y, w, &rw, AL_CENTER);
	w = rw;
	dlg->xw = rw + 2 * DIALOG_LB;
	dlg->yw = y + 2 * DIALOG_TB;
	center_dlg(dlg);
	draw_dlg(dlg);
	y = dlg->y + DIALOG_TB;
	dlg_format_text(term, term, dlg->dlg->udata, dlg->x + DIALOG_LB, &y, w, NULL, COLOR_DIALOG_TEXT, AL_LEFT);
	dlg_format_field(term, term, dlg->items, dlg->x + DIALOG_LB, &y, w, NULL, AL_LEFT);
	y++;
	dlg_format_buttons(term, term, dlg->items + 1, 2, dlg->x + DIALOG_LB, &y, w, NULL, AL_CENTER);
}

void input_field(struct terminal *term, struct memory_list *ml, unsigned char *title, unsigned char *text, unsigned char *okbutton, unsigned char *cancelbutton, void *data, struct history *history, int l, unsigned char *def, int min, int max, int (*check)(struct dialog_data *, struct dialog_item_data *), void (*fn)(void *, unsigned char *), void (*cancelfn)(void *))
{
	struct dialog *dlg;
	unsigned char *field;
	if ((unsigned)l > MAXINT - sizeof(struct dialog) + 4 * sizeof(struct dialog_item)) overalloc();
	dlg = mem_alloc(sizeof(struct dialog) + 4 * sizeof(struct dialog_item) + l);
	memset(dlg, 0, sizeof(struct dialog) + 4 * sizeof(struct dialog_item) + l);
	*(field = (unsigned char *)dlg + sizeof(struct dialog) + 4 * sizeof(struct dialog_item)) = 0;
	if (def) {
		if (strlen(def) + 1 > (size_t)l) memcpy(field, def, l - 1);
		else strcpy(field, def);
	}
	dlg->title = title;
	dlg->fn = input_field_fn;
	dlg->udata = text;
	dlg->udata2 = data;
	dlg->items[0].type = D_FIELD;
	dlg->items[0].gid = min;
	dlg->items[0].gnum = max;
	dlg->items[0].fn = check;
	dlg->items[0].history = history;
	dlg->items[0].dlen = l;
	dlg->items[0].data = field;
	dlg->items[1].type = D_BUTTON;
	dlg->items[1].gid = B_ENTER;
	dlg->items[1].fn = input_field_ok;
	dlg->items[1].dlen = 0;
	dlg->items[1].text = okbutton;
	dlg->items[1].udata = fn;
	dlg->items[2].type = D_BUTTON;
	dlg->items[2].gid = B_ESC;
	dlg->items[2].fn = input_field_cancel;
	dlg->items[2].dlen = 0;
	dlg->items[2].text = cancelbutton;
	dlg->items[2].udata = cancelfn;
	dlg->items[3].type = D_END;
	add_to_ml(&ml, dlg, NULL);
	do_dialog(term, dlg, ml);
}


/* Sets the selected item to one that is visible.*/
void box_sel_set_visible(struct dialog_item_data *box_item_data, int offset) {
    struct dlg_data_item_data_box *box;
	int sel;
	
	box = (struct dlg_data_item_data_box *)(box_item_data->item->data);
	if (offset > box_item_data->item->gid || offset < 0) {
		return;
	}
	/*debug("offset: %d", offset);*/
	sel = box->box_top + offset;
	if (sel > box->list_len) {
		box->sel = box->list_len - 1;
	} else {
		box->sel = sel;
	}
}

/* Moves the selected item [dist] thingies. If [dist] is out of the current 
	range, the selected item is moved to the extreme (ie, the top or bottom) 
*/
void box_sel_move(struct dialog_item_data *box_item_data, int dist) {
    struct dlg_data_item_data_box *box;
	int new_sel;
	int new_top;
	
	box = (struct dlg_data_item_data_box *)(box_item_data->item->data);

	new_sel = box->sel + dist; 
	new_top = box->box_top;

	/* Ensure that the selection is in range */
	if (new_sel < 0)
		new_sel = 0;
	else if (new_sel >= box->list_len)
		new_sel = box->list_len - 1;
	
	/* Ensure that the display box is over the item */
	if ( new_sel >= (new_top + box_item_data->item->gid) ) {
		/* Move it down */
		new_top = new_sel - box_item_data->item->gid + 1;
#ifdef DEBUG
		if (new_top < 0)
			debug("Newly calculated box_top is an extremely wrong value (%d). It should not be below zero.", new_top);
#endif	
	} else if ( new_sel < new_top ) {
		/* Move the display up (if necessary) */	
		new_top = new_sel;
	}
	
	box->sel = new_sel;
	box->box_top = new_top;
}


/* Displays a dialog box */
void show_dlg_item_box(struct dialog_data *dlg, struct dialog_item_data *box_item_data) {
	struct terminal *term = dlg->win->term;
	struct dlg_data_item_data_box *box;
	struct box_item *citem;	/* Item currently being shown */
	int n;	/* Index of item currently being displayed */

	box = (struct dlg_data_item_data_box *)(box_item_data->item->data);
	/* FIXME: Counting here SHOULD be unnecessary */
	n = 0;

	fill_area(term, box_item_data->x, box_item_data->y, box_item_data->l, box_item_data->item->gid, COLOR_DIALOG_FIELD);

	foreach (citem, box->items) {
		int len; /* Length of the current text field. */
		len = strlen(citem->text);
		if (len > box_item_data->l) {
			len = box_item_data->l;
		}

		/* Is the current item in the region to be displayed? */
		if ( (n >= box->box_top) && (n < (box->box_top + box_item_data->item->gid)) ) {
			print_text(term, box_item_data->x, box_item_data->y + n - box->box_top, len, citem->text, n == box->sel ? COLOR_DIALOG_BUTTON_SELECTED : COLOR_DIALOG_FIELD_TEXT);

		}
		n++;
	}

	box->list_len = n;
}