[four-in-a-row] Move code.

[Arnaud B. <arnaudb src gnome org>]

commit 70d80af64be4da55b89b9674e0f00bef8e1d6db6
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Sat Dec 21 11:41:52 2019 +0100

    Move code.

 src/game-board-view.vala | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)
---
diff --git a/src/game-board-view.vala b/src/game-board-view.vala
index 9e669af..3fa756f 100644
--- a/src/game-board-view.vala
+++ b/src/game-board-view.vala
@@ -65,12 +65,9 @@ private class GameBoardView : Gtk.DrawingArea {
         return true;
     }
 
-    private inline bool change_theme() {
-        load_pixmaps();
-
-        refresh_pixmaps();
-        return true;
-    }
+    /*\
+    * * drawing
+    \*/
 
     protected override bool draw(Cairo.Context cr) {
         int r, c;
@@ -169,6 +166,12 @@ private class GameBoardView : Gtk.DrawingArea {
     * * pixmaps
     \*/
 
+    private inline void change_theme ()
+    {
+        load_pixmaps ();
+        refresh_pixmaps ();
+    }
+
     private void refresh_pixmaps ()
     {
         Gdk.Pixbuf? tmp_pixbuf;