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Merge pull request #80271 from Ymanawat/optionmenu-scroll-test

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Fix scrolling on keyboard/controller input
This commit is contained in:
Rémi Verschelde 2023-10-09 15:30:57 +02:00
commit c1fed53943
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GPG key ID: C3336907360768E1
1 changed files with 9 additions and 7 deletions
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16
scene/gui/popup_menu.cpp
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@ -2170,14 +2170,16 @@ int PopupMenu::get_item_count() const {
void PopupMenu::scroll_to_item(int p_idx) {
ERR_FAIL_INDEX(p_idx, items.size());
// Scroll item into view (upwards).
if (items[p_idx]._ofs_cache - scroll_container->get_v_scroll() < -control->get_position().y) {
scroll_container->set_v_scroll(items[p_idx]._ofs_cache + control->get_position().y);
}
// Calculate the position of the item relative to the visible area.
int item_y = items[p_idx]._ofs_cache;
int visible_height = scroll_container->get_size().height;
int relative_y = item_y - scroll_container->get_v_scroll();
// Scroll item into view (downwards).
if (items[p_idx]._ofs_cache + items[p_idx]._height_cache - scroll_container->get_v_scroll() > -control->get_position().y + scroll_container->get_size().height) {
scroll_container->set_v_scroll(items[p_idx]._ofs_cache + items[p_idx]._height_cache + control->get_position().y);
// If item is not fully visible, adjust scroll.
if (relative_y < 0) {
scroll_container->set_v_scroll(item_y);
} else if (relative_y + items[p_idx]._height_cache > visible_height) {
scroll_container->set_v_scroll(item_y + items[p_idx]._height_cache - visible_height);
}
}