Added caching class to handle images

Magazyn_Client/Magazyn/DataModels/Fruit.cs

@@ -1,8 +1,10 @@
-using System;
+using Magazyn.Tools;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using System.Windows;
 using System.Windows.Media.Imaging;
 
 namespace Magazyn.DataModels
@@ -79,6 +81,7 @@ namespace Magazyn.DataModels
 
 		public Fruit(int id, string name, int quantity, int quantityMax, float price, string imageLink)
 		{
+          
 			this.id = id;
 			this.name = name;
 			this.quantity = quantity;
@@ -86,11 +89,7 @@ namespace Magazyn.DataModels
             this.price = price;
 			this.imageLink = imageLink;
 
-            imageSource = new BitmapImage();
-            imageSource.BeginInit();
-            imageSource.UriSource = new Uri(imageLink);
-            imageSource.CacheOption = BitmapCacheOption.OnLoad;
-            imageSource.EndInit();
+            imageSource = CacheImage.GetImageSource(new Uri(imageLink));
         }
-	}
+    }
 }

Magazyn_Client/Magazyn/Magazyn.csproj

@@ -67,6 +67,7 @@
     </ApplicationDefinition>
     <Compile Include="DataModels\Fruit.cs" />
     <Compile Include="DataModels\WarehousePrice.cs" />
+    <Compile Include="Tools\CacheImage.cs" />
     <Compile Include="Views\FruitView.xaml.cs">
       <DependentUpon>FruitView.xaml</DependentUpon>
     </Compile>

Magazyn_Client/Magazyn/MainWindow.xaml.cs

@@ -20,6 +20,7 @@ using Newtonsoft.Json.Linq;
 
 using System.Net;
 using Magazyn.Windows;
+using Magazyn.Tools;
 
 namespace Magazyn
 {

Magazyn_Client/Magazyn/Tools/CacheImage.cs

@@ -0,0 +1,29 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Media.Imaging;
+
+namespace Magazyn.Tools
+{
+    class CacheImage
+    {
+        static Dictionary<Uri, BitmapImage> dic = new Dictionary<Uri, BitmapImage>();
+
+        static public BitmapImage GetImageSource( Uri url )
+        {
+            if (dic.Keys.Contains<Uri>(url)) return dic[url];
+            else
+            {
+                BitmapImage imageSource = new BitmapImage();
+                imageSource.BeginInit();
+                imageSource.UriSource = url;
+                imageSource.CacheOption = BitmapCacheOption.OnLoad;
+                imageSource.EndInit();
+                dic.Add(url, imageSource);
+                return imageSource;
+            }
+        }
+    }
+}