contrib/dialog/fselect.c

90 init_list(LIST * list, WINDOW *par, WINDOW *win, int mousex)
92     list->par = par;
93     list->win = win;
94     list->length = 0;
95     list->offset = 0;
96     list->choice = 0;
97     list->mousex = mousex;
98     list->allocd = 0;
99     list->data = 0;
117 data_of(LIST * list)
119     if (list != 0
120 	&& list->data != 0)
121 	return list->data[list->choice];
126 free_list(LIST * list, int reinit)
130     if (list->data != 0) {
131 	for (n = 0; list->data[n] != 0; n++)
132 	    free(list->data[n]);
133 	free(list->data);
134 	list->data = 0;
137 	init_list(list, list->par, list->win, list->mousex);
141 add_to_list(LIST * list, char *text)
145     need = (unsigned) (list->length + 1);
146     if (need + 1 > list->allocd) {
147 	list->allocd = 2 * (need + 1);
148 	if (list->data == 0) {
149 	    list->data = dlg_malloc(char *, list->allocd);
151 	    list->data = dlg_realloc(char *, list->allocd, list->data);
153 	assert_ptr(list->data, "add_to_list");
155     list->data[list->length++] = dlg_strclone(text);
156     list->data[list->length] = 0;
160 keep_visible(LIST * list)
162     int high = getmaxy(list->win);
164     if (list->choice < list->offset) {
165 	list->offset = list->choice;
167     if (list->choice - list->offset >= high)
168 	list->offset = list->choice - high + 1;
174 find_choice(char *target, LIST * list)
177     int choice = list->choice;
181 	list->choice = 0;
189 	for (n = 0; n < list->length; n++) {
191 	    char *b = list->data[n];
206 		list->choice = n;
210     if (choice != list->choice) {
211 	keep_visible(list);
213     return (choice != list->choice);
217 display_list(LIST * list)
225     if (list->win != 0) {
226 	dlg_attr_clear(list->win, getmaxy(list->win), getmaxx(list->win), item_attr);
227 	for (n = list->offset; n < list->length && list->data[n]; n++) {
228 	    y = n - list->offset;
229 	    if (y >= getmaxy(list->win))
231 	    (void) wmove(list->win, y, 0);
232 	    if (n == list->choice)
233 		(void) wattrset(list->win, item_selected_attr);
234 	    (void) waddstr(list->win, list->data[n]);
235 	    (void) wattrset(list->win, item_attr);
237 	(void) wattrset(list->win, item_attr);
239 	getparyx(list->win, y, x);
242 	bottom = y + getmaxy(list->win);
243 	dlg_draw_scrollbar(list->par,
244 			   (long) list->offset,
245 			   (long) list->offset,
246 			   (long) (list->offset + getmaxy(list->win)),
247 			   (long) (list->length),
249 			   x + getmaxx(list->win),
255 	(void) wmove(list->win, list->choice - list->offset, 0);
256 	(void) wnoutrefresh(list->win);
268 fix_arrows(LIST * list)
276     if (list->win != 0) {
277 	getparyx(list->win, y, x);
279 	right = getmaxx(list->win);
280 	bottom = y + getmaxy(list->win);
283 		       ((list->mousex == MOUSE_D)
287 		       ((list->mousex == MOUSE_D)
294 show_list(char *target, LIST * list, int keep)
296     int changed = keep || find_choice(target, list);
297     display_list(list);
302  * Highlight the closest match to 'target' in the given list, setting offset
314  * Move up/down in the given list
317 change_list(int choice, LIST * list)
319     if (data_of(list) != 0) {
320 	int last = list->length - 1;
322 	choice += list->choice;
327 	list->choice = choice;
328 	keep_visible(list);
329 	display_list(list);
336 scroll_list(int direction, LIST * list)
338     if (data_of(list) != 0) {
339 	int length = getmaxy(list->win);
340 	if (change_list(direction * length, list))