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menu: Avoid useless draws of the entry tree

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This commit is contained in:
mintsuki 2021-07-08 15:47:28 +02:00
parent d8db4b1703
commit a39a588b0e
1 changed files with 26 additions and 18 deletions
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44
stage23/menu.c
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@ -414,36 +414,44 @@ static int print_tree(const char *shift, int level, int base_index, int selected
struct menu_entry **selected_menu_entry) {
int max_entries = 0;
bool no_print = false;
if (shift == NULL) {
no_print = true;
}
for (;;) {
if (current_entry == NULL)
break;
print("%s", shift);
if (!no_print) print("%s", shift);
if (level) {
for (int i = level - 1; i > 0; i--) {
struct menu_entry *actual_parent = current_entry;
for (int j = 0; j < i; j++)
actual_parent = actual_parent->parent;
if (actual_parent->next != NULL)
print(" \xb3");
else
print(" ");
if (actual_parent->next != NULL) {
if (!no_print) print(" \xb3");
} else {
if (!no_print) print(" ");
}
}
if (current_entry->next == NULL) {
if (!no_print) print(" \xc0");
} else {
if (!no_print) print(" \xc3");
}
if (current_entry->next == NULL)
print(" \xc0");
else
print(" \xc3");
}
if (current_entry->sub)
print(current_entry->expanded ? "[-]" : "[+]");
else if (level)
print("\xc4> ");
else
print(" ");
if (current_entry->sub) {
if (!no_print) print(current_entry->expanded ? "[-]" : "[+]");
} else if (level) {
if (!no_print) print("\xc4> ");
} else {
if (!no_print) print(" ");
}
if (base_index + max_entries == selected_entry) {
*selected_menu_entry = current_entry;
print("\e[47m\e[30m");
if (!no_print) print("\e[47m\e[30m");
}
print(" %s \e[0m\n", current_entry->name);
if (!no_print) print(" %s \e[0m\n", current_entry->name);
if (current_entry->sub && current_entry->expanded) {
max_entries += print_tree(shift, level + 1, base_index + max_entries + 1,
selected_entry,
@ -488,7 +496,7 @@ char *menu(char **cmdline) {
if (!timeout) {
// Use print tree to load up selected_menu_entry and determine if the
// default entry is valid.
print_tree(" ", 0, 0, selected_entry, menu_tree, &selected_menu_entry);
print_tree(NULL, 0, 0, selected_entry, menu_tree, &selected_menu_entry);
if (selected_menu_entry == NULL || selected_menu_entry->sub != NULL) {
print("Default entry is not valid or directory, booting to menu.\n");
skip_timeout = true;