From fb8704bb7d25ae1ae401c28e3fb7b3c6650740da Mon Sep 17 00:00:00 2001
From: PhiCross5 <56079747+PhiCross5@users.noreply.github.com>
Date: Wed, 16 Aug 2023 18:16:51 -0300
Subject: [PATCH 1/2] Make Gtk Box call append() for array part

---
 lgi/override/Gtk.lua | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lgi/override/Gtk.lua b/lgi/override/Gtk.lua
index 96a76d5a..1d930a21 100644
--- a/lgi/override/Gtk.lua
+++ b/lgi/override/Gtk.lua
@@ -219,6 +219,9 @@ if Gtk.Container then
    end
 end
 
+-------------------------------- Gtk.Box overrides.
+Gtk.Box._container_add = Gtk.Box.append
+
 -------------------------------- Gtk.Builder overrides.
 Gtk.Builder._attribute = {}
 

From 9020ed2121229ec9ebcdef8e5094d5fa822003eb Mon Sep 17 00:00:00 2001
From: Phicross5 <felipe.choi@sou.unifal-mg.edu.br>
Date: Fri, 18 Aug 2023 23:56:49 -0300
Subject: [PATCH 2/2] wrap the gtk Box override around a gtk4 version check

---
 lgi/override/Gtk.lua | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/lgi/override/Gtk.lua b/lgi/override/Gtk.lua
index 1d930a21..1812a6fb 100644
--- a/lgi/override/Gtk.lua
+++ b/lgi/override/Gtk.lua
@@ -219,8 +219,6 @@ if Gtk.Container then
    end
 end
 
--------------------------------- Gtk.Box overrides.
-Gtk.Box._container_add = Gtk.Box.append
 
 -------------------------------- Gtk.Builder overrides.
 Gtk.Builder._attribute = {}
@@ -634,6 +632,25 @@ Gtk._constant.PRINT_OUTPUT_URI = 'output-uri'
 -- Gtk-cairo integration helpers.
 cairo.Context._method.should_draw_window = Gtk.cairo_should_draw_window
 
+-------------------------------- Gtk-4 overrides
+
+
+if Gtk._version == '4.0' then
+
+   --- CONTAINER CLASSES
+   --- GTK4 Has removed the Container abstract class.
+   --- This means Boxes, Grids and other layout widgets 
+   --- Must now add children using their own specific methods.
+
+   --- Gtk.Box overrides
+
+   --- widgets on a the array part of the constructor of a Box
+   --- will be `append()`-ed
+   --- in order of appearance.
+   Gtk.Box._container_add = Gtk.Box.append
+
+end
+
 --------------------------------- Gtk-2 workarounds
 if Gtk._version == '2.0' then
    -- Get rid of Gtk.Bin internal 'child' field, which gets in the way