From 80d9415be1034bd0b1db775f16867d3a7d8bcba2 Mon Sep 17 00:00:00 2001
From: Bastian Schmidt <batzen@gmx.org>
Date: Sat, 11 May 2024 08:05:31 +0200
Subject: [PATCH] Adding BackDrop

---
 .../MahApps.Metro.Demo/MainWindow.xaml        | 20 +++++++++++++++++++
 .../Styles/Themes/GeneratorParameters.json    |  8 ++++++--
 .../Styles/Themes/Theme.Template.xaml         |  2 ++
 src/MahApps.Metro/Themes/MetroWindow.xaml     | 20 +++++++++++++++++++
 4 files changed, 48 insertions(+), 2 deletions(-)

diff --git a/src/MahApps.Metro.Samples/MahApps.Metro.Demo/MainWindow.xaml b/src/MahApps.Metro.Samples/MahApps.Metro.Demo/MainWindow.xaml
index 0fccc39e6d..0e19b9cc72 100644
--- a/src/MahApps.Metro.Samples/MahApps.Metro.Demo/MainWindow.xaml
+++ b/src/MahApps.Metro.Samples/MahApps.Metro.Demo/MainWindow.xaml
@@ -114,6 +114,14 @@
                     <x:Type TypeName="controlzEx:WindowCornerPreference" />
                 </ObjectDataProvider.MethodParameters>
             </ObjectDataProvider>
+
+            <ObjectDataProvider x:Key="WindowBackdropTypeEnumValues"
+                                MethodName="GetValues"
+                                ObjectType="{x:Type controlzEx:WindowBackdropType}">
+                <ObjectDataProvider.MethodParameters>
+                    <x:Type TypeName="controlzEx:WindowBackdropType" />
+                </ObjectDataProvider.MethodParameters>
+            </ObjectDataProvider>
         </ResourceDictionary>
     </Window.Resources>
 
@@ -238,6 +246,18 @@
                             </ControlTemplate>
                         </MenuItem.Template>
                     </MenuItem>
+                    <MenuItem>
+                        <MenuItem.Template>
+                            <ControlTemplate>
+                                <StackPanel Orientation="Horizontal">
+                                    <Label Content="Backdrop" />
+                                    <ComboBox VerticalAlignment="Center"
+                                              ItemsSource="{Binding Source={StaticResource WindowBackdropTypeEnumValues}}"
+                                              SelectedItem="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type mah:MetroWindow}}, Path=(controlzEx:WindowBackdropManager.BackdropType), Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" />
+                                </StackPanel>
+                            </ControlTemplate>
+                        </MenuItem.Template>
+                    </MenuItem>
                 </MenuItem>
                 <MenuItem Header="Glow">
                     <MenuItem Header="PreferDWMBorderColor"
diff --git a/src/MahApps.Metro/Styles/Themes/GeneratorParameters.json b/src/MahApps.Metro/Styles/Themes/GeneratorParameters.json
index 8769954c75..fdfc8ed4ee 100644
--- a/src/MahApps.Metro/Styles/Themes/GeneratorParameters.json
+++ b/src/MahApps.Metro/Styles/Themes/GeneratorParameters.json
@@ -77,7 +77,9 @@
         "MahApps.Brushes.SystemControlHighlightListAccentHigh.Opacity": "0.9",
         "MahApps.Brushes.SystemControlHighlightListAccentLow.Opacity": "0.6",
         "MahApps.Brushes.SystemControlHighlightListAccentMedium.Opacity": "0.8",
-        "MahApps.Brushes.SystemControlTransientBorder.Opacity": "0.36"
+        "MahApps.Brushes.SystemControlTransientBorder.Opacity": "0.36",
+        "MahApps.Brushes.Window.Background.Backdrop.Acrylic": "#60000000",
+        "MahApps.Brushes.Window.Background.Backdrop.Auto": "#BB000000"
       }
     },
     {
@@ -153,7 +155,9 @@
         "MahApps.Brushes.SystemControlHighlightListAccentHigh.Opacity": "0.7",
         "MahApps.Brushes.SystemControlHighlightListAccentLow.Opacity": "0.4",
         "MahApps.Brushes.SystemControlHighlightListAccentMedium.Opacity": "0.6",
-        "MahApps.Brushes.SystemControlTransientBorder.Opacity": "0.14"
+        "MahApps.Brushes.SystemControlTransientBorder.Opacity": "0.14",
+        "MahApps.Brushes.Window.Background.Backdrop.Acrylic": "#60FFFFFF",
+        "MahApps.Brushes.Window.Background.Backdrop.Auto": "#BBFFFFFF"
       }
     }
   ],
diff --git a/src/MahApps.Metro/Styles/Themes/Theme.Template.xaml b/src/MahApps.Metro/Styles/Themes/Theme.Template.xaml
index cce0cb79f0..23101ccc68 100644
--- a/src/MahApps.Metro/Styles/Themes/Theme.Template.xaml
+++ b/src/MahApps.Metro/Styles/Themes/Theme.Template.xaml
@@ -147,6 +147,8 @@
 
     <SolidColorBrush x:Key="MahApps.Brushes.Window.FlyoutOverlay" Opacity="0.5" Color="{StaticResource MahApps.Colors.ThemeForeground}" options:Freeze="True" />
     <SolidColorBrush x:Key="MahApps.Brushes.Window.Background" Color="{StaticResource MahApps.Colors.ThemeBackground}" options:Freeze="True" />
+    <SolidColorBrush x:Key="MahApps.Brushes.Window.Background.Backdrop.Acrylic" Color="{{MahApps.Brushes.Window.Background.Backdrop.Acrylic}}" options:Freeze="True" />
+    <SolidColorBrush x:Key="MahApps.Brushes.Window.Background.Backdrop.Auto" Color="{{MahApps.Brushes.Window.Background.Backdrop.Auto}}" options:Freeze="True" />
     <SolidColorBrush x:Key="MahApps.Brushes.Separator" Color="#FFC4C4C5" options:Freeze="True" />
 
     <SolidColorBrush x:Key="MahApps.Brushes.Button.Flat.Background" Color="#D5D5D5" options:Freeze="True" />
diff --git a/src/MahApps.Metro/Themes/MetroWindow.xaml b/src/MahApps.Metro/Themes/MetroWindow.xaml
index f571ed7323..0a9438429e 100644
--- a/src/MahApps.Metro/Themes/MetroWindow.xaml
+++ b/src/MahApps.Metro/Themes/MetroWindow.xaml
@@ -574,6 +574,7 @@
             </Setter.Value>
         </Setter>
         <Setter Property="WindowTitleBrush" Value="{DynamicResource MahApps.Brushes.WindowTitle}" />
+        <Setter Property="controlzEx:WindowBackdropManager.BackdropType" Value="Mica" />
         <Style.Triggers>
             <DataTrigger Binding="{Binding RelativeSource={RelativeSource Self}, Path=Icon, Mode=OneWay, Converter={x:Static mahConverters:IsNullConverter.Instance}}" Value="False">
                 <Setter Property="IconTemplate">
@@ -592,6 +593,25 @@
             <Trigger Property="TitleAlignment" Value="Center">
                 <Setter Property="Template" Value="{StaticResource MahApps.Templates.MetroWindow.Center}" />
             </Trigger>
+            <Trigger Property="UseNativeCaptionButtons" Value="True">
+                <Setter Property="GlassFrameThickness" Value="-1" />
+            </Trigger>
+            <Trigger Property="controlzEx:WindowBackdropManager.CurrentBackdropType" Value="Acrylic">
+                <Setter Property="Background" Value="{DynamicResource MahApps.Brushes.Window.Background.Backdrop.Acrylic}" />
+                <Setter Property="GlassFrameThickness" Value="-1" />
+            </Trigger>
+            <Trigger Property="controlzEx:WindowBackdropManager.CurrentBackdropType" Value="Auto">
+                <Setter Property="Background" Value="{DynamicResource MahApps.Brushes.Window.Background.Backdrop.Auto}" />
+                <Setter Property="GlassFrameThickness" Value="-1" />
+            </Trigger>
+            <Trigger Property="controlzEx:WindowBackdropManager.CurrentBackdropType" Value="Mica">
+                <Setter Property="Background" Value="Transparent" />
+                <Setter Property="GlassFrameThickness" Value="-1" />
+            </Trigger>
+            <Trigger Property="controlzEx:WindowBackdropManager.CurrentBackdropType" Value="Tabbed">
+                <Setter Property="Background" Value="Transparent" />
+                <Setter Property="GlassFrameThickness" Value="-1" />
+            </Trigger>
         </Style.Triggers>
     </Style>
 </ResourceDictionary>
\ No newline at end of file