Background Fade

BeWo/MainControl.xaml.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Diagnostics;
+using System.IO.Ports;
 using System.Linq;
 using System.Runtime.Remoting.Contexts;
 using System.Security.Cryptography;
@@ -201,10 +202,10 @@ namespace BeWo
 				_CurrentAnimatedBeWoWindow = value;
 
 				if (value is null)
-					HideModalBackground();
+					HideModalBackgroundFade(.5);
 				else
 				{
-					ShowModalBackground();
+					ShowModalBackgroundFade(.5);
 				}
 			}
 		}
@@ -949,18 +950,26 @@ namespace BeWo
 			}
 		}
 
-		internal void ShowModalBackground()
+		internal void ShowModalBackgroundFade(double duration = 0.3, double opacity = 0.5)
+		{
+			if (ModalPopupBackGround is Grid && grid_main.Children.Contains(ModalPopupBackGround))
+				return;
+
+			ShowModalBackground(0);
+			DoubleAnimation lAnim = new DoubleAnimation(opacity, new Duration(TimeSpan.FromSeconds(duration)));
+			ModalPopupBackGround.BeginAnimation(OpacityProperty, lAnim);
+		}
+
+		internal void ShowModalBackground(double start_opacity = .5)
 		{
 			if (ModalPopupBackGround is Grid && grid_main.Children.Contains(ModalPopupBackGround))
-			{
 				return;
-			}
 
 			ModalPopupBackGround = new Grid
 			{
 				IsHitTestVisible = true,
 				Background = Brushes.White,
-				Opacity = .5
+				Opacity = start_opacity
 			};
 
 			Grid.SetColumnSpan(ModalPopupBackGround, 3);
@@ -971,12 +980,23 @@ namespace BeWo
 			Panel.SetZIndex(ModalPopupBackGround, 500);
 		}
 
+		internal void HideModalBackgroundFade(double duration = 0.3)
+		{
+			if (ModalPopupBackGround is null || !grid_main.Children.Contains(ModalPopupBackGround))
+				return;
+
+			DoubleAnimation lAnim = new DoubleAnimation(0, new Duration(TimeSpan.FromSeconds(duration)));
+			lAnim.Completed += (s, e) =>
+			{
+				HideModalBackground();
+			};
+			ModalPopupBackGround.BeginAnimation(OpacityProperty, lAnim);
+		}
+
 		internal void HideModalBackground()
 		{
 			if (ModalPopupBackGround is null || !grid_main.Children.Contains(ModalPopupBackGround))
-			{
 				return;
-			}
 
 			grid_main.Children.Remove(ModalPopupBackGround);
 			ModalPopupBackGround = null;

BeWo/View/Windows/AnimatedBeWoWindow.xaml.cs

@@ -64,11 +64,6 @@ namespace BeWo.View.Windows
 			rootGroupBox.Content = fe;
 		}
 
-		public AnimatedBeWoWindow(FrameworkElement fe, string stylestring) : this(fe)
-		{
-			rootGroupBox.Style = (Style)FindResource(stylestring);
-		}
-
 		public void Window_Closing(object sender, CancelEventArgs e)
 		{
 			if (!closeStoryBoardCompleted && !isClosing)