[libgames-support] Center the "no scores yet" box

[Michael Catanzaro <mcatanzaro src gnome org>]

commit ac99491a0f39ceb1327725cd35e891b9cef6840f
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Fri Jul 24 13:26:35 2015 -0500

    Center the "no scores yet" box
    
    Set the height request for the dialog rather than the box, so that the
    box can be centered within the dialog.

 games/scores/dialog.vala |   17 ++++++++---------
 1 files changed, 8 insertions(+), 9 deletions(-)
---
diff --git a/games/scores/dialog.vala b/games/scores/dialog.vala
index d20ead7..2d1319f 100644
--- a/games/scores/dialog.vala
+++ b/games/scores/dialog.vala
@@ -64,30 +64,29 @@ private class Dialog : Gtk.Dialog
         if (!context.has_scores () && new_high_score == null)
         {
             var vbox = this.get_content_area ();
-            vbox.spacing = 12;
+            vbox.spacing = 4;
             vbox.border_width = 10;
-            vbox.width_request = 450;
-            vbox.height_request = 500;
+            vbox.valign = Gtk.Align.CENTER;
             vbox.get_style_context ().add_class ("dim-label");
 
             var image = new Gtk.Image ();
             image.icon_name = app_name + "-symbolic";
             image.pixel_size = 64;
             image.opacity = 0.2;
-            image.valign = Gtk.Align.CENTER;
-            vbox.add (image);
+            vbox.pack_start (image, false, false);
 
             var title_label = new Gtk.Label ("<b><span size=\"large\">" + _("No scores yet") + 
"</span></b>");
             title_label.use_markup = true;
-            title_label.valign = Gtk.Align.CENTER;
-            vbox.add (title_label);
+            vbox.pack_start (title_label, false, false);
 
             var description_label = new Gtk.Label (_("Play some games and your scores will show up here."));
-            description_label.valign = Gtk.Align.CENTER;
-            vbox.add (description_label);
+            vbox.pack_start (description_label, false, false);
 
             vbox.show_all ();
 
+            width_request = 450;
+            height_request = 500;
+
             return;
         }