summaryrefslogtreecommitdiff
path: root/scene/gui/tree.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'scene/gui/tree.cpp')
-rw-r--r--scene/gui/tree.cpp28
1 files changed, 18 insertions, 10 deletions
diff --git a/scene/gui/tree.cpp b/scene/gui/tree.cpp
index e33ce0b017..9a6c87276f 100644
--- a/scene/gui/tree.cpp
+++ b/scene/gui/tree.cpp
@@ -4409,21 +4409,29 @@ Point2 Tree::get_scroll() const {
return ofs;
}
-void Tree::scroll_to_item(TreeItem *p_item) {
+void Tree::scroll_to_item(TreeItem *p_item, bool p_center_on_item) {
if (!is_visible_in_tree()) {
- // hack to work around crash in get_item_rect() if Tree is not in tree.
- return;
+ return; // Hack to work around crash in get_item_rect() if Tree is not in tree.
}
- // make sure the scrollbar min and max are up to date with latest changes.
update_scrollbars();
- const Rect2 r = get_item_rect(p_item);
+ const real_t tree_height = get_size().y;
+ const Rect2 item_rect = get_item_rect(p_item);
+ const real_t item_y = item_rect.position.y;
+ const real_t item_height = item_rect.size.y + cache.vseparation;
- if (r.position.y <= v_scroll->get_value()) {
- v_scroll->set_value(r.position.y);
- } else if (r.position.y + r.size.y + 2 * cache.vseparation > v_scroll->get_value() + get_size().y) {
- v_scroll->set_value(r.position.y + r.size.y + 2 * cache.vseparation - get_size().y);
+ if (p_center_on_item) {
+ v_scroll->set_value(item_y - (tree_height - item_height) / 2.0f);
+ } else {
+ if (item_y < v_scroll->get_value()) {
+ v_scroll->set_value(item_y);
+ } else {
+ const real_t new_position = item_y + item_height - tree_height;
+ if (new_position > v_scroll->get_value()) {
+ v_scroll->set_value(new_position);
+ }
+ }
}
}
@@ -4868,7 +4876,7 @@ void Tree::_bind_methods() {
ClassDB::bind_method(D_METHOD("get_column_title_language", "column"), &Tree::get_column_title_language);
ClassDB::bind_method(D_METHOD("get_scroll"), &Tree::get_scroll);
- ClassDB::bind_method(D_METHOD("scroll_to_item", "item"), &Tree::scroll_to_item);
+ ClassDB::bind_method(D_METHOD("scroll_to_item", "item", "center_on_item"), &Tree::scroll_to_item, DEFVAL(false));
ClassDB::bind_method(D_METHOD("set_h_scroll_enabled", "h_scroll"), &Tree::set_h_scroll_enabled);
ClassDB::bind_method(D_METHOD("is_h_scroll_enabled"), &Tree::is_h_scroll_enabled);