static boolean menu_is_multipage(nhmenu *menu, int width, int height)
{
int num_lines;
int curline = 0;
nhmenu_item *menu_item_ptr = menu->entries;
if (strlen(menu->prompt) > 0) {
curline += curses_num_lines(menu->prompt, width) + 1;
}
if (menu->num_entries <= (height - curline)) {
while (menu_item_ptr != NULL) {
menu_item_ptr->line_num = curline;
if (menu_item_ptr->identifier.a_void == NULL) {
num_lines = curses_num_lines(menu_item_ptr->str, width);
} else {
/* Add space for accelerator */
num_lines = curses_num_lines(menu_item_ptr->str, width - 4);
}
menu_item_ptr->num_lines = num_lines;
curline += num_lines;
menu_item_ptr = menu_item_ptr->next_item;
if ((curline > height) || ((curline > height -2) &&
(height == menu_max_height()))) {
break;
}
}
if (menu_item_ptr == NULL) {
return FALSE;
}
}
return TRUE;
}
static void menu_win_size(nhmenu *menu)
{
int width, height, maxwidth, maxheight, curentrywidth, lastline;
int maxentrywidth = strlen(menu->prompt);
int maxheaderwidth = 0;
nhmenu_item *menu_item_ptr = menu->entries;
maxwidth = 38; /* Reasonable minimum usable width */
if ((term_cols / 2) > maxwidth)
{
maxwidth = (term_cols / 2); /* Half the screen */
}
maxheight = menu_max_height();
/* First, determine the width of the longest menu entry */
while (menu_item_ptr != NULL)
{
if (menu_item_ptr->identifier.a_void == NULL)
{
curentrywidth=strlen(menu_item_ptr->str);
if (curentrywidth > maxheaderwidth)
{
maxheaderwidth = curentrywidth;
}
}
else
{
/* Add space for accelerator */
curentrywidth=strlen(menu_item_ptr->str) + 4;
}
if (curentrywidth > maxentrywidth)
{
maxentrywidth = curentrywidth;
}
menu_item_ptr = menu_item_ptr->next_item;
}
/* If the widest entry is smaller than maxwidth, reduce maxwidth accordingly */
if (maxentrywidth < maxwidth)
{
maxwidth = maxentrywidth;
}
/* Try not to wrap headers/normal text lines if possible. We can
go wider than half the screen for this purpose if need be */
if ((maxheaderwidth > maxwidth) && (maxheaderwidth < (term_cols - 2)))
{
maxwidth = maxheaderwidth;
}
width = maxwidth;
/* Possibly reduce height if only 1 page */
if (!menu_is_multipage(menu, maxwidth, maxheight))
{
menu_item_ptr = menu->entries;
while (menu_item_ptr->next_item != NULL)
{
menu_item_ptr = menu_item_ptr->next_item;
}
lastline = (menu_item_ptr->line_num) + menu_item_ptr->num_lines;
if (lastline < maxheight)
{
maxheight = lastline;
}
}
else /* If multipage, make sure we have enough width for page footer */
{
if (width < 20)
{
width = 20;
}
}
height = maxheight;
menu->width = width;
menu->height = height;
}
