source code checkin

src/Plugin.Common/Extensions/IconExtension.cs

@@ -0,0 +1,47 @@
+using System;
+using System.Linq;
+using System.Windows.Markup;
+using System.Windows.Media.Imaging;
+
+namespace ServerManagerTool.Plugin.Common
+{
+    /// <summary>
+    /// Simple extension for icon, to let you choose icon with specific size.
+    /// Usage sample:
+    /// Image Stretch="None" Source="{common:Icon /Controls;component/icons/custom.ico, 16}"
+    /// Or:
+    /// Image Source="{common:Icon Source={Binding IconResource}, Size=16}"
+    /// </summary> 
+    public class IconExtension : MarkupExtension
+    {
+        private string _path;
+
+        public string Path
+        {
+            get
+            {
+                return _path;
+            }
+            set
+            {
+                // Have to make full pack URI from short form, so System.Uri recognizes it.
+                _path = $"pack://application:,,,{value}";
+            }
+        }
+
+        public int Size { get; set; }
+
+        public override object ProvideValue(IServiceProvider serviceProvider)
+        {
+            var decoder = BitmapDecoder.Create(new Uri(Path), BitmapCreateOptions.DelayCreation, BitmapCacheOption.OnDemand);
+
+            var result = decoder.Frames.SingleOrDefault(f => f.Width == Size);
+            if (result == default(BitmapFrame))
+            {
+                result = decoder.Frames.OrderBy(f => f.Width).First();
+            }
+
+            return result;
+        }
+    }
+}