Add a lifecycle method for manual theme item caching to Control

1 files changed, 25 insertions, 3 deletions

diff --git a/scene/gui/item_list.h b/scene/gui/item_list.h
index 21bd22759c..63bc771185 100644
--- a/scene/gui/item_list.h
+++ b/scene/gui/item_list.h
@@ -109,23 +109,45 @@ private:
 	int max_columns = 1;
 
 	Size2 fixed_icon_size;
-
 	Size2 max_item_size_cache;
 
 	int defer_select_single = -1;
-
 	bool allow_rmb_select = false;
-
 	bool allow_reselect = false;
 
 	real_t icon_scale = 1.0;
 
 	bool do_autoscroll_to_bottom = false;
 
+	struct ThemeCache {
+		int h_separation = 0;
+		int v_separation = 0;
+
+		Ref<StyleBox> bg_style;
+		Ref<StyleBox> bg_focus_style;
+
+		Ref<Font> font;
+		int font_size = 0;
+		Color font_color;
+		Color font_selected_color;
+		int font_outline_size = 0;
+		Color font_outline_color;
+
+		int line_separation = 0;
+		int icon_margin = 0;
+		Ref<StyleBox> selected_style;
+		Ref<StyleBox> selected_focus_style;
+		Ref<StyleBox> cursor_style;
+		Ref<StyleBox> cursor_focus_style;
+		Color guide_color;
+	} theme_cache;
+
 	void _scroll_changed(double);
 	void _shape(int p_idx);
 
 protected:
+	virtual void _update_theme_item_cache() override;
+
 	void _notification(int p_what);
 	bool _set(const StringName &p_name, const Variant &p_value);
 	bool _get(const StringName &p_name, Variant &r_ret) const;