From c068a9d0bd864f6895bb79612d75bc670fab23c1 Mon Sep 17 00:00:00 2001 From: Dawid Marzec Date: Fri, 11 Nov 2022 16:27:28 +0100 Subject: Fix a gap with scrolling down in Tree with arrow keys (#57636) --- scene/gui/tree.cpp | 42 ++++++++++++++++++++++++++---------------- 1 file changed, 26 insertions(+), 16 deletions(-) (limited to 'scene/gui') diff --git a/scene/gui/tree.cpp b/scene/gui/tree.cpp index 25df4e7932..2da76883b4 100644 --- a/scene/gui/tree.cpp +++ b/scene/gui/tree.cpp @@ -4553,6 +4553,7 @@ void Tree::ensure_cursor_is_visible() { return; // Nothing under cursor. } + // Note: Code below similar to Tree::scroll_to_item(), in case of bug fix both. const Size2 area_size = get_size() - theme_cache.panel_style->get_minimum_size(); int y_offset = get_item_offset(selected_item); @@ -4561,7 +4562,10 @@ void Tree::ensure_cursor_is_visible() { y_offset -= tbh; const int cell_h = compute_item_height(selected_item) + theme_cache.vseparation; - const int screen_h = area_size.height - h_scroll->get_combined_minimum_size().height - tbh; + int screen_h = area_size.height - tbh; + if (h_scroll->is_visible()) { + screen_h -= h_scroll->get_combined_minimum_size().height; + } if (cell_h > screen_h) { // Screen size is too small, maybe it was not resized yet. v_scroll->set_value(y_offset); @@ -4712,26 +4716,32 @@ Point2 Tree::get_scroll() const { void Tree::scroll_to_item(TreeItem *p_item, bool p_center_on_item) { ERR_FAIL_NULL(p_item); - if (!is_visible_in_tree() || !p_item->is_visible()) { - return; // Hack to work around crash in get_item_rect() if Tree is not in tree. - } update_scrollbars(); - 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 + theme_cache.vseparation; + // Note: Code below similar to Tree::ensure_cursor_is_visible(), in case of bug fix both. + const Size2 area_size = get_size() - theme_cache.panel_style->get_minimum_size(); - 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); + int y_offset = get_item_offset(p_item); + if (y_offset != -1) { + const int tbh = _get_title_button_height(); + y_offset -= tbh; + + const int cell_h = compute_item_height(p_item) + theme_cache.vseparation; + int screen_h = area_size.height - tbh; + if (h_scroll->is_visible()) { + screen_h -= h_scroll->get_combined_minimum_size().height; + } + + if (p_center_on_item) { + v_scroll->set_value(y_offset - (screen_h - cell_h) / 2.0f); } 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); + if (cell_h > screen_h) { // Screen size is too small, maybe it was not resized yet. + v_scroll->set_value(y_offset); + } else if (y_offset + cell_h > v_scroll->get_value() + screen_h) { + v_scroll->set_value(y_offset - screen_h + cell_h); + } else if (y_offset < v_scroll->get_value()) { + v_scroll->set_value(y_offset); } } } -- cgit v1.2.3