[lightsoff/arnaudb/wip/gtk4: 10/28] Adapt old Container API.

[Arnaud B. <arnaudb src gnome org>]

commit 08aef2267a01749c455e7053cab2a919719a6ead
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Fri Nov 27 15:37:03 2020 +0100

    Adapt old Container API.

 src/game-view-gtk.vala    | 4 ++--
 src/lightsoff-window.vala | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/src/game-view-gtk.vala b/src/game-view-gtk.vala
index 18d5c10..d6ca93f 100644
--- a/src/game-view-gtk.vala
+++ b/src/game-view-gtk.vala
@@ -38,7 +38,7 @@ private class GtkGameView : Stack, GameView
                 assert_not_reached ();
         }
 
-        add ((Widget)new_board);
+        add_child ((Widget)new_board);
         set_visible_child ((Widget)new_board);
         if (Gtk.Settings.get_for_screen (((Widget)new_board).get_screen ()).gtk_enable_animations)
             handlers.push_tail(notify["transition-running"].connect(() => board_replaced 
((BoardViewGtk)old_board, (BoardViewGtk)new_board)));
@@ -82,7 +82,7 @@ private class GtkGameView : Stack, GameView
     {
         board_view = (BoardViewGtk)create_board_view (level);
         board_view.sensitive = true;
-        add (board_view);
+        add_child (board_view);
     }
 
     internal BoardView create_board_view (int level)
diff --git a/src/lightsoff-window.vala b/src/lightsoff-window.vala
index b0b2348..7b9d3e4 100644
--- a/src/lightsoff-window.vala
+++ b/src/lightsoff-window.vala
@@ -54,7 +54,7 @@ private class LightsoffWindow : ManagedWindow
         gtk_game_view.hexpand = true;
         gtk_game_view.vexpand = true;
 
-        aspect_frame.add (gtk_game_view);
+        aspect_frame.set_child (gtk_game_view);
         game_view = gtk_game_view;
 
         var provider = new Gtk.CssProvider ();