From fbfa7fe997cb31e13af1dde4518f571de9e9d8bc Mon Sep 17 00:00:00 2001
From: danwalmsley <dan@walms.co.uk>
Date: Fri, 12 Aug 2016 09:50:24 +0100
Subject: [PATCH] implemented Equals and GetHashCode in FontKey for skia
 typeface cache.

---
 src/Skia/Avalonia.Skia/TypefaceCache.cs | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/Skia/Avalonia.Skia/TypefaceCache.cs b/src/Skia/Avalonia.Skia/TypefaceCache.cs
index 3d1bf8add0..c5f3d371ad 100644
--- a/src/Skia/Avalonia.Skia/TypefaceCache.cs
+++ b/src/Skia/Avalonia.Skia/TypefaceCache.cs
@@ -20,7 +20,27 @@ namespace Avalonia.Skia
                 Slant  = slant;
                 Weight = weight;
             }
-            
+
+            public override int GetHashCode()
+            {
+                int hash = 17;
+                hash = hash * 31 + (int)Slant;
+                hash = hash * 31 + (int)Weight;
+
+                return hash;
+            }
+
+            public override bool Equals(object other)
+            {
+                return other is FontKey ? Equals((FontKey)other) : false;
+            }
+
+            public bool Equals(FontKey other)
+            {
+                return Slant == other.Slant &&
+                    Weight == other.Weight;
+            }
+
             // Equals and GetHashCode ommitted
         }