[gnome-2048] Keep custom size at restoration.

[Arnaud B. <arnaudb src gnome org>]

commit 3f59d600cf79ed10f5cca282e7b46dfa238ffd1b
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Thu Feb 7 14:09:36 2019 +0100

    Keep custom size at restoration.
    
    The restored game is overwriting
    the custom size but that doesn't
    feel great if it's an usual one.

 src/game.vala | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)
---
diff --git a/src/game.vala b/src/game.vala
index 291c645..45929db 100644
--- a/src/game.vala
+++ b/src/game.vala
@@ -164,10 +164,18 @@ private class Game : Object
         _init_background ();
         _restore_foreground (true);
 
-        settings.delay ();
-        settings.set_int ("rows", _grid.rows);
-        settings.set_int ("cols", _grid.cols);
-        settings.apply ();
+        int rows = _grid.rows;
+        int cols = _grid.cols;
+        if ((rows == 3 && cols != 3)
+         || (rows == 4 && cols != 4)
+         || (rows == 5 && cols != 5)
+         || (rows != 3 && rows != 4 && rows != 5))
+        {
+            settings.delay ();
+            settings.set_int ("rows", rows);
+            settings.set_int ("cols", cols);
+            settings.apply ();
+        }
 
         debug ("game restored successfully");
         return true;