Added devices ZIndex

src/Artemis.UI/ViewModels/Controls/SurfaceEditor/SurfaceDeviceViewModel.cs

@@ -26,6 +26,7 @@ namespace Artemis.UI.ViewModels.Controls.SurfaceEditor
         public IRGBDevice Device { get; }
         public SelectionStatus SelectionStatus { get; set; }
         public Cursor Cursor { get; set; }
+        public int ZIndex { get; set; }
 
         public IReadOnlyCollection<SurfaceLedViewModel> Leds => _leds.AsReadOnly();
         public Rect DeviceRectangle => new Rect(Device.Location.X, Device.Location.Y, Device.Size.Width, Device.Size.Height);

src/Artemis.UI/ViewModels/Screens/SurfaceEditorViewModel.cs

@@ -79,7 +79,7 @@ namespace Artemis.UI.ViewModels.Screens
                     SelectedSurfaceConfiguration = AddSurfaceConfiguration("Default");
             });
         }
-        
+
         public SurfaceConfiguration AddSurfaceConfiguration(string name)
         {
             var config = new SurfaceConfiguration(name);
@@ -107,7 +107,7 @@ namespace Artemis.UI.ViewModels.Screens
 
         public void BringForward(SurfaceDeviceViewModel surfaceDeviceViewModel)
         {
-            Console.WriteLine("Bring forward");
+            surfaceDeviceViewModel.ZIndex++;
         }
 
         public void SendToBack(SurfaceDeviceViewModel surfaceDeviceViewModel)
@@ -117,7 +117,7 @@ namespace Artemis.UI.ViewModels.Screens
 
         public void SendBackward(SurfaceDeviceViewModel surfaceDeviceViewModel)
         {
-            Console.WriteLine("Send backward");
+            surfaceDeviceViewModel.ZIndex--;
         }
 
         #endregion