void
goto_end()
{
if(db_n_items() > 0)
curitem = last_item();
refresh_list();
}
void
goto_home()
{
if(db_n_items() > 0)
curitem = 0;
refresh_list();
}
void
ui_print_number_of_items()
{
char *str = strdup_printf(" " "|%3d/%3d",
selected_items(), db_n_items());
mvaddstr(0, COLS-strlen(str), str);
free(str);
}
void
scroll_down()
{
if(curitem > db_n_items() - 2)
return;
curitem++;
refresh_list();
}
void
invert_selection()
{
int i;
if(list_is_empty())
return;
for(i = 0; i < db_n_items(); i++)
selected[i] = !selected[i];
}
int
selected_items()
{
int i, n = 0;
for(i = 0; i < db_n_items(); i++)
if(selected[i])
n++;
return n;
}
void
scroll_list_down()
{
if(LAST_LIST_ITEM > db_n_items() - 2) {
if(curitem < LAST_LIST_ITEM) {
curitem++;
refresh_list();
}
return;
}
first_list_item += scroll_speed;
if(LAST_LIST_ITEM > db_n_items() - 1) {
first_list_item = db_n_items() - LIST_LINES;
}
if(curitem < first_list_item) {
curitem = first_list_item;
}
refresh_list();
}
void
page_down()
{
if(curitem > db_n_items() - 2)
return;
if(curitem == LAST_LIST_ITEM) {
if((curitem += LIST_LINES) > last_item())
curitem = last_item();
} else {
curitem = min(LAST_LIST_ITEM, last_item());
}
refresh_list();
}
void
refresh_list()
{
int i, line;
werase(list);
ui_print_number_of_items();
if(list_is_empty()) {
refresh();
wrefresh(list);
return;
}
if(curitem < 0)
curitem = 0;
if(first_list_item < 0)
first_list_item = 0;
if(curitem < first_list_item)
first_list_item = curitem;
else if(curitem > LAST_LIST_ITEM)
first_list_item = max(curitem - LIST_LINES + 1, 0);
for(line = 0, i = first_list_item;
i <= LAST_LIST_ITEM && i < db_n_items();
line++, i++) {
print_list_line(i, line, i == curitem);
}
if(opt_get_bool(BOOL_SHOW_CURSOR)) {
wmove(list, curitem - first_list_item, 0);
/* need to call refresh() to update the cursor positions */
refresh();
}
wrefresh(list);
}
int
list_is_empty()
{
return db_n_items() < 1;
}
void
select_all()
{
memset(selected, 1, db_n_items());
}
void
select_none()
{
memset(selected, 0, db_n_items());
}