[gbrainy] Fix preview mode for memory games

[Jordi Mas <jmas src gnome org>]

commit c3640ecc682ebb53ebf56057929bfa44e16f7cbf
Author: Jordi Mas <jmas softcatala org>
Date:   Sat Jun 1 17:40:39 2013 +0200

    Fix preview mode for memory games

 src/Core/Main/Memory.cs |   10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)
---
diff --git a/src/Core/Main/Memory.cs b/src/Core/Main/Memory.cs
index 3bfd56e..ee2bda8 100644
--- a/src/Core/Main/Memory.cs
+++ b/src/Core/Main/Memory.cs
@@ -121,6 +121,9 @@ namespace gbrainy.Core.Main
 
                public void StartTimer ()
                {
+                       if (IsPreviewMode == true)
+                               return;
+
                        timer.Enabled = true;
                        draw_timer = true;
                }
@@ -166,7 +169,12 @@ namespace gbrainy.Core.Main
                }               
 
                public override void Draw (CairoContextEx gr, int area_width, int area_height, bool rtl)
-               {                       
+               {
+                       if (IsPreviewMode) {
+                               DrawPreview (gr, area_width, area_height, rtl);
+                               return;
+                       }
+
                        if (downview != null) {
                                downview.Draw (gr, area_width, area_height, rtl);
                                return;