From 483370f218abe7c0d464217c0e1467fc1bd91e67 Mon Sep 17 00:00:00 2001
From: NaBian <836904362@qq.com>
Date: Wed, 5 Jan 2022 21:56:30 +0800
Subject: [PATCH] enhance: add Layout prop for ButtonGroup

---
 .../HandyControl_Net_40/Themes/Theme.xaml     |  37 ++++-
 .../Controls/Button/ButtonGroup.cs            |  17 ++-
 .../Data/Enum/LinearLayout.cs                 |   9 ++
 .../HandyControl_Shared.projitems             |   1 +
 .../Styles/Base/ButtonGroupBaseStyle.xaml     |  41 +++++-
 .../HandyControl_Shared/Themes/Theme.xaml     |  37 ++++-
 .../ButtonGroupItemStyleSelector.cs           | 136 ++++++++++--------
 7 files changed, 192 insertions(+), 86 deletions(-)
 create mode 100644 src/Shared/HandyControl_Shared/Data/Enum/LinearLayout.cs

diff --git a/src/Net_40/HandyControl_Net_40/Themes/Theme.xaml b/src/Net_40/HandyControl_Net_40/Themes/Theme.xaml
index 43d0dd10..d134dfb4 100644
--- a/src/Net_40/HandyControl_Net_40/Themes/Theme.xaml
+++ b/src/Net_40/HandyControl_Net_40/Themes/Theme.xaml
@@ -561,12 +561,18 @@
 			</Border>
 		</Grid>
 	</ControlTemplate>
-	<ItemsPanelTemplate x:Key="ButtonGroupHorizontalItemsPanelTemplate">
+	<ItemsPanelTemplate x:Key="ButtonGroupHorizontalUniformItemsPanelTemplate">
 		<UniformGrid FocusVisualStyle="{x:Null}" Rows="1" />
 	</ItemsPanelTemplate>
-	<ItemsPanelTemplate x:Key="ButtonGroupVerticalItemsPanelTemplate">
+	<ItemsPanelTemplate x:Key="ButtonGroupVerticalUniformItemsPanelTemplate">
 		<UniformGrid FocusVisualStyle="{x:Null}" Columns="1" />
 	</ItemsPanelTemplate>
+	<ItemsPanelTemplate x:Key="ButtonGroupHorizontalStackItemsPanelTemplate">
+		<StackPanel FocusVisualStyle="{x:Null}" Orientation="Horizontal" />
+	</ItemsPanelTemplate>
+	<ItemsPanelTemplate x:Key="ButtonGroupVerticalStackItemsPanelTemplate">
+		<StackPanel FocusVisualStyle="{x:Null}" />
+	</ItemsPanelTemplate>
 	<tools:ButtonGroupItemStyleSelector x:Key="ButtonGroupItemStyleSelector" />
 	<LinearGradientBrush x:Key="ProgressBarIndicatorAnimatedFill" StartPoint="0,0" EndPoint="1,0">
 		<GradientStop Color="#00FFFFFF" Offset="0" />
@@ -2442,16 +2448,35 @@
 	<Style x:Key="ButtonGroupBaseStyle" TargetType="hc:ButtonGroup">
 		<Setter Property="ItemContainerStyleSelector" Value="{StaticResource ButtonGroupItemStyleSelector}" />
 		<Setter Property="VerticalAlignment" Value="Top" />
+		<Setter Property="Layout" Value="Uniform" />
 		<Setter Property="FocusVisualStyle" Value="{x:Null}" />
 		<Setter Property="Focusable" Value="False" />
-		<Setter Property="ItemsPanel" Value="{StaticResource ButtonGroupHorizontalItemsPanelTemplate}" />
+		<Setter Property="ItemsPanel" Value="{StaticResource ButtonGroupHorizontalUniformItemsPanelTemplate}" />
 		<Setter Property="hc:VisualElement.HighlightBorderBrush" Value="{DynamicResource PrimaryBrush}" />
 		<Setter Property="hc:VisualElement.HighlightBackground" Value="{DynamicResource RegionBrush}" />
 		<Setter Property="hc:VisualElement.HighlightForeground" Value="{DynamicResource PrimaryBrush}" />
 		<Style.Triggers>
-			<Trigger Property="Orientation" Value="Vertical">
-				<Setter Property="ItemsPanel" Value="{StaticResource ButtonGroupVerticalItemsPanelTemplate}" />
-			</Trigger>
+			<MultiTrigger>
+				<MultiTrigger.Conditions>
+					<Condition Property="Layout" Value="Uniform" />
+					<Condition Property="Orientation" Value="Vertical" />
+				</MultiTrigger.Conditions>
+				<Setter Property="ItemsPanel" Value="{StaticResource ButtonGroupVerticalUniformItemsPanelTemplate}" />
+			</MultiTrigger>
+			<MultiTrigger>
+				<MultiTrigger.Conditions>
+					<Condition Property="Layout" Value="Stack" />
+					<Condition Property="Orientation" Value="Horizontal" />
+				</MultiTrigger.Conditions>
+				<Setter Property="ItemsPanel" Value="{StaticResource ButtonGroupHorizontalStackItemsPanelTemplate}" />
+			</MultiTrigger>
+			<MultiTrigger>
+				<MultiTrigger.Conditions>
+					<Condition Property="Layout" Value="Stack" />
+					<Condition Property="Orientation" Value="Vertical" />
+				</MultiTrigger.Conditions>
+				<Setter Property="ItemsPanel" Value="{StaticResource ButtonGroupVerticalStackItemsPanelTemplate}" />
+			</MultiTrigger>
 		</Style.Triggers>
 	</Style>
 	<Style x:Key="ProgressBarBaseStyle" TargetType="ProgressBar">
diff --git a/src/Shared/HandyControl_Shared/Controls/Button/ButtonGroup.cs b/src/Shared/HandyControl_Shared/Controls/Button/ButtonGroup.cs
index 14ab530d..6b938fc7 100644
--- a/src/Shared/HandyControl_Shared/Controls/Button/ButtonGroup.cs
+++ b/src/Shared/HandyControl_Shared/Controls/Button/ButtonGroup.cs
@@ -1,12 +1,14 @@
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Controls.Primitives;
+using System.Windows.Media;
+using HandyControl.Data;
 
 namespace HandyControl.Controls
 {
     public class ButtonGroup : ItemsControl
     {
-        protected override bool IsItemItsOwnContainerOverride(object item) => item is Button || item is RadioButton || item is ToggleButton;
+        protected override bool IsItemItsOwnContainerOverride(object item) => item is Button or RadioButton or ToggleButton;
 
         public static readonly DependencyProperty OrientationProperty = DependencyProperty.Register(
             "Orientation", typeof(Orientation), typeof(ButtonGroup), new PropertyMetadata(default(Orientation)));
@@ -17,10 +19,17 @@ namespace HandyControl.Controls
             set => SetValue(OrientationProperty, value);
         }
 
-        protected override void OnVisualChildrenChanged(DependencyObject visualAdded, DependencyObject visualRemoved)
-        {
-            base.OnVisualChildrenChanged(visualAdded, visualRemoved);
+        public static readonly DependencyProperty LayoutProperty = DependencyProperty.Register(
+            "Layout", typeof(LinearLayout), typeof(ButtonGroup), new PropertyMetadata(LinearLayout.Uniform));
 
+        public LinearLayout Layout
+        {
+            get => (LinearLayout) GetValue(LayoutProperty);
+            set => SetValue(LayoutProperty, value);
+        }
+
+        protected override void OnRender(DrawingContext drawingContext)
+        {
             var count = Items.Count;
             for (var i = 0; i < count; i++)
             {
diff --git a/src/Shared/HandyControl_Shared/Data/Enum/LinearLayout.cs b/src/Shared/HandyControl_Shared/Data/Enum/LinearLayout.cs
new file mode 100644
index 00000000..5aa6c542
--- /dev/null
+++ b/src/Shared/HandyControl_Shared/Data/Enum/LinearLayout.cs
@@ -0,0 +1,9 @@
+namespace HandyControl.Data
+{
+    public enum LinearLayout
+    {
+        Stack,
+
+        Uniform
+    }
+}
diff --git a/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems b/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems
index 9f73d850..094f4063 100644
--- a/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems
+++ b/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems
@@ -85,6 +85,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Tag\TagContainer.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Text\HighlightTextBlock.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Text\SimpleText.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Data\Enum\LinearLayout.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Tools\Helper\FullScreenHelper.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Window\GlowWindow.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Data\EnumItem.cs" />
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/ButtonGroupBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/ButtonGroupBaseStyle.xaml
index a049b0a9..d3575c2c 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/ButtonGroupBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/ButtonGroupBaseStyle.xaml
@@ -3,30 +3,57 @@
                     xmlns:hc="clr-namespace:HandyControl.Controls"
                     xmlns:tools="clr-namespace:HandyControl.Tools">
 
-    <ItemsPanelTemplate x:Key="ButtonGroupHorizontalItemsPanelTemplate">
+    <ItemsPanelTemplate x:Key="ButtonGroupHorizontalUniformItemsPanelTemplate">
         <UniformGrid FocusVisualStyle="{x:Null}" Rows="1"/>
     </ItemsPanelTemplate>
 
-    <ItemsPanelTemplate x:Key="ButtonGroupVerticalItemsPanelTemplate">
+    <ItemsPanelTemplate x:Key="ButtonGroupVerticalUniformItemsPanelTemplate">
         <UniformGrid FocusVisualStyle="{x:Null}" Columns="1"/>
     </ItemsPanelTemplate>
 
+    <ItemsPanelTemplate x:Key="ButtonGroupHorizontalStackItemsPanelTemplate">
+        <StackPanel FocusVisualStyle="{x:Null}" Orientation="Horizontal"/>
+    </ItemsPanelTemplate>
+
+    <ItemsPanelTemplate x:Key="ButtonGroupVerticalStackItemsPanelTemplate">
+        <StackPanel FocusVisualStyle="{x:Null}"/>
+    </ItemsPanelTemplate>
+
     <tools:ButtonGroupItemStyleSelector x:Key="ButtonGroupItemStyleSelector"/>
 
     <Style x:Key="ButtonGroupBaseStyle" TargetType="hc:ButtonGroup">
         <Setter Property="ItemContainerStyleSelector" Value="{StaticResource ButtonGroupItemStyleSelector}"/>
         <Setter Property="VerticalAlignment" Value="Top"/>
+        <Setter Property="Layout" Value="Uniform"/>
         <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
         <Setter Property="Focusable" Value="False"/>
-        <Setter Property="ItemsPanel" Value="{StaticResource ButtonGroupHorizontalItemsPanelTemplate}"/>
+        <Setter Property="ItemsPanel" Value="{StaticResource ButtonGroupHorizontalUniformItemsPanelTemplate}"/>
         <Setter Property="hc:VisualElement.HighlightBorderBrush" Value="{DynamicResource PrimaryBrush}"/>
         <Setter Property="hc:VisualElement.HighlightBackground" Value="{DynamicResource RegionBrush}"/>
         <Setter Property="hc:VisualElement.HighlightForeground" Value="{DynamicResource PrimaryBrush}"/>
         <Style.Triggers>
-            <Trigger Property="Orientation" Value="Vertical">
-                <Setter Property="ItemsPanel" Value="{StaticResource ButtonGroupVerticalItemsPanelTemplate}"/>
-            </Trigger>
+            <MultiTrigger>
+                <MultiTrigger.Conditions>
+                    <Condition Property="Layout" Value="Uniform"/>
+                    <Condition Property="Orientation" Value="Vertical"/>
+                </MultiTrigger.Conditions>
+                <Setter Property="ItemsPanel" Value="{StaticResource ButtonGroupVerticalUniformItemsPanelTemplate}"/>
+            </MultiTrigger>
+            <MultiTrigger>
+                <MultiTrigger.Conditions>
+                    <Condition Property="Layout" Value="Stack"/>
+                    <Condition Property="Orientation" Value="Horizontal"/>
+                </MultiTrigger.Conditions>
+                <Setter Property="ItemsPanel" Value="{StaticResource ButtonGroupHorizontalStackItemsPanelTemplate}"/>
+            </MultiTrigger>
+            <MultiTrigger>
+                <MultiTrigger.Conditions>
+                    <Condition Property="Layout" Value="Stack"/>
+                    <Condition Property="Orientation" Value="Vertical"/>
+                </MultiTrigger.Conditions>
+                <Setter Property="ItemsPanel" Value="{StaticResource ButtonGroupVerticalStackItemsPanelTemplate}"/>
+            </MultiTrigger>
         </Style.Triggers>
     </Style>
 
-</ResourceDictionary>
\ No newline at end of file
+</ResourceDictionary>
diff --git a/src/Shared/HandyControl_Shared/Themes/Theme.xaml b/src/Shared/HandyControl_Shared/Themes/Theme.xaml
index 5949ea9c..5e78b866 100644
--- a/src/Shared/HandyControl_Shared/Themes/Theme.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Theme.xaml
@@ -561,12 +561,18 @@
 			</Border>
 		</Grid>
 	</ControlTemplate>
-	<ItemsPanelTemplate x:Key="ButtonGroupHorizontalItemsPanelTemplate">
+	<ItemsPanelTemplate x:Key="ButtonGroupHorizontalUniformItemsPanelTemplate">
 		<UniformGrid FocusVisualStyle="{x:Null}" Rows="1" />
 	</ItemsPanelTemplate>
-	<ItemsPanelTemplate x:Key="ButtonGroupVerticalItemsPanelTemplate">
+	<ItemsPanelTemplate x:Key="ButtonGroupVerticalUniformItemsPanelTemplate">
 		<UniformGrid FocusVisualStyle="{x:Null}" Columns="1" />
 	</ItemsPanelTemplate>
+	<ItemsPanelTemplate x:Key="ButtonGroupHorizontalStackItemsPanelTemplate">
+		<StackPanel FocusVisualStyle="{x:Null}" Orientation="Horizontal" />
+	</ItemsPanelTemplate>
+	<ItemsPanelTemplate x:Key="ButtonGroupVerticalStackItemsPanelTemplate">
+		<StackPanel FocusVisualStyle="{x:Null}" />
+	</ItemsPanelTemplate>
 	<tools:ButtonGroupItemStyleSelector x:Key="ButtonGroupItemStyleSelector" />
 	<LinearGradientBrush x:Key="ProgressBarIndicatorAnimatedFill" StartPoint="0,0" EndPoint="1,0">
 		<GradientStop Color="#00FFFFFF" Offset="0" />
@@ -2442,16 +2448,35 @@
 	<Style x:Key="ButtonGroupBaseStyle" TargetType="hc:ButtonGroup">
 		<Setter Property="ItemContainerStyleSelector" Value="{StaticResource ButtonGroupItemStyleSelector}" />
 		<Setter Property="VerticalAlignment" Value="Top" />
+		<Setter Property="Layout" Value="Uniform" />
 		<Setter Property="FocusVisualStyle" Value="{x:Null}" />
 		<Setter Property="Focusable" Value="False" />
-		<Setter Property="ItemsPanel" Value="{StaticResource ButtonGroupHorizontalItemsPanelTemplate}" />
+		<Setter Property="ItemsPanel" Value="{StaticResource ButtonGroupHorizontalUniformItemsPanelTemplate}" />
 		<Setter Property="hc:VisualElement.HighlightBorderBrush" Value="{DynamicResource PrimaryBrush}" />
 		<Setter Property="hc:VisualElement.HighlightBackground" Value="{DynamicResource RegionBrush}" />
 		<Setter Property="hc:VisualElement.HighlightForeground" Value="{DynamicResource PrimaryBrush}" />
 		<Style.Triggers>
-			<Trigger Property="Orientation" Value="Vertical">
-				<Setter Property="ItemsPanel" Value="{StaticResource ButtonGroupVerticalItemsPanelTemplate}" />
-			</Trigger>
+			<MultiTrigger>
+				<MultiTrigger.Conditions>
+					<Condition Property="Layout" Value="Uniform" />
+					<Condition Property="Orientation" Value="Vertical" />
+				</MultiTrigger.Conditions>
+				<Setter Property="ItemsPanel" Value="{StaticResource ButtonGroupVerticalUniformItemsPanelTemplate}" />
+			</MultiTrigger>
+			<MultiTrigger>
+				<MultiTrigger.Conditions>
+					<Condition Property="Layout" Value="Stack" />
+					<Condition Property="Orientation" Value="Horizontal" />
+				</MultiTrigger.Conditions>
+				<Setter Property="ItemsPanel" Value="{StaticResource ButtonGroupHorizontalStackItemsPanelTemplate}" />
+			</MultiTrigger>
+			<MultiTrigger>
+				<MultiTrigger.Conditions>
+					<Condition Property="Layout" Value="Stack" />
+					<Condition Property="Orientation" Value="Vertical" />
+				</MultiTrigger.Conditions>
+				<Setter Property="ItemsPanel" Value="{StaticResource ButtonGroupVerticalStackItemsPanelTemplate}" />
+			</MultiTrigger>
 		</Style.Triggers>
 	</Style>
 	<Style x:Key="ProgressBarBaseStyle" TargetType="ProgressBar">
diff --git a/src/Shared/HandyControl_Shared/Tools/StyleSelector/ButtonGroupItemStyleSelector.cs b/src/Shared/HandyControl_Shared/Tools/StyleSelector/ButtonGroupItemStyleSelector.cs
index 7877494b..82a4a879 100644
--- a/src/Shared/HandyControl_Shared/Tools/StyleSelector/ButtonGroupItemStyleSelector.cs
+++ b/src/Shared/HandyControl_Shared/Tools/StyleSelector/ButtonGroupItemStyleSelector.cs
@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.Linq;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Controls.Primitives;
@@ -37,76 +38,85 @@ namespace HandyControl.Tools
         {
             if (container is ButtonGroup buttonGroup && item is ButtonBase buttonBase)
             {
-                var count = buttonGroup.Items.Count;
+                var count = GetVisibleButtonsCount(buttonGroup);
 
                 switch (buttonBase)
                 {
-                    case RadioButton:
-                        {
-                            if (count == 1)
-                            {
-                                return StyleDict[ResourceToken.RadioGroupItemSingle];
-                            }
-
-                            var index = buttonGroup.Items.IndexOf(buttonBase);
-                            return buttonGroup.Orientation == Orientation.Horizontal
-                                ? index == 0
-                                    ? StyleDict[ResourceToken.RadioGroupItemHorizontalFirst]
-                                    : StyleDict[index == count - 1
-                                        ? ResourceToken.RadioGroupItemHorizontalLast
-                                        : ResourceToken.RadioGroupItemDefault]
-                                : index == 0
-                                    ? StyleDict[ResourceToken.RadioGroupItemVerticalFirst]
-                                    : StyleDict[index == count - 1
-                                        ? ResourceToken.RadioGroupItemVerticalLast
-                                        : ResourceToken.RadioGroupItemDefault];
-                        }
-
-                    case Button:
-                        {
-                            if (count == 1)
-                            {
-                                return StyleDict[ResourceToken.ButtonGroupItemSingle];
-                            }
-
-                            var index = buttonGroup.Items.IndexOf(buttonBase);
-                            return buttonGroup.Orientation == Orientation.Horizontal
-                                ? index == 0
-                                    ? StyleDict[ResourceToken.ButtonGroupItemHorizontalFirst]
-                                    : StyleDict[index == count - 1
-                                        ? ResourceToken.ButtonGroupItemHorizontalLast
-                                        : ResourceToken.ButtonGroupItemDefault]
-                                : index == 0
-                                    ? StyleDict[ResourceToken.ButtonGroupItemVerticalFirst]
-                                    : StyleDict[index == count - 1
-                                        ? ResourceToken.ButtonGroupItemVerticalLast
-                                        : ResourceToken.ButtonGroupItemDefault];
-                        }
-
-                    case ToggleButton:
-                        {
-                            if (count == 1)
-                            {
-                                return StyleDict[ResourceToken.ToggleButtonGroupItemSingle];
-                            }
-
-                            var index = buttonGroup.Items.IndexOf(buttonBase);
-                            return buttonGroup.Orientation == Orientation.Horizontal
-                                ? index == 0
-                                    ? StyleDict[ResourceToken.ToggleButtonGroupItemHorizontalFirst]
-                                    : StyleDict[index == count - 1
-                                        ? ResourceToken.ToggleButtonGroupItemHorizontalLast
-                                        : ResourceToken.ToggleButtonGroupItemDefault]
-                                : index == 0
-                                    ? StyleDict[ResourceToken.ToggleButtonGroupItemVerticalFirst]
-                                    : StyleDict[index == count - 1
-                                        ? ResourceToken.ToggleButtonGroupItemVerticalLast
-                                        : ResourceToken.ToggleButtonGroupItemDefault];
-                        }
+                    case RadioButton: return GetRadioButtonStyle(count, buttonGroup, buttonBase);
+                    case Button: return GetButtonStyle(count, buttonGroup, buttonBase);
+                    case ToggleButton: return GetToggleButtonStyle(count, buttonGroup, buttonBase);
                 }
             }
 
             return null;
         }
+
+        private static int GetVisibleButtonsCount(ButtonGroup buttonGroup)
+        {
+            return buttonGroup.Items.OfType<ButtonBase>().Count(button => button.IsVisible);
+        }
+
+        private static Style GetToggleButtonStyle(int count, ButtonGroup buttonGroup, ButtonBase button)
+        {
+            if (count == 1)
+            {
+                return StyleDict[ResourceToken.ToggleButtonGroupItemSingle];
+            }
+
+            var index = buttonGroup.Items.IndexOf(button);
+            return buttonGroup.Orientation == Orientation.Horizontal
+                ? index == 0
+                    ? StyleDict[ResourceToken.ToggleButtonGroupItemHorizontalFirst]
+                    : StyleDict[index == count - 1
+                        ? ResourceToken.ToggleButtonGroupItemHorizontalLast
+                        : ResourceToken.ToggleButtonGroupItemDefault]
+                : index == 0
+                    ? StyleDict[ResourceToken.ToggleButtonGroupItemVerticalFirst]
+                    : StyleDict[index == count - 1
+                        ? ResourceToken.ToggleButtonGroupItemVerticalLast
+                        : ResourceToken.ToggleButtonGroupItemDefault];
+        }
+
+        private static Style GetButtonStyle(int count, ButtonGroup buttonGroup, ButtonBase button)
+        {
+            if (count == 1)
+            {
+                return StyleDict[ResourceToken.ButtonGroupItemSingle];
+            }
+
+            var index = buttonGroup.Items.IndexOf(button);
+            return buttonGroup.Orientation == Orientation.Horizontal
+                ? index == 0
+                    ? StyleDict[ResourceToken.ButtonGroupItemHorizontalFirst]
+                    : StyleDict[index == count - 1
+                        ? ResourceToken.ButtonGroupItemHorizontalLast
+                        : ResourceToken.ButtonGroupItemDefault]
+                : index == 0
+                    ? StyleDict[ResourceToken.ButtonGroupItemVerticalFirst]
+                    : StyleDict[index == count - 1
+                        ? ResourceToken.ButtonGroupItemVerticalLast
+                        : ResourceToken.ButtonGroupItemDefault];
+        }
+
+        private static Style GetRadioButtonStyle(int count, ButtonGroup buttonGroup, ButtonBase button)
+        {
+            if (count == 1)
+            {
+                return StyleDict[ResourceToken.RadioGroupItemSingle];
+            }
+
+            var index = buttonGroup.Items.IndexOf(button);
+            return buttonGroup.Orientation == Orientation.Horizontal
+                ? index == 0
+                    ? StyleDict[ResourceToken.RadioGroupItemHorizontalFirst]
+                    : StyleDict[index == count - 1
+                        ? ResourceToken.RadioGroupItemHorizontalLast
+                        : ResourceToken.RadioGroupItemDefault]
+                : index == 0
+                    ? StyleDict[ResourceToken.RadioGroupItemVerticalFirst]
+                    : StyleDict[index == count - 1
+                        ? ResourceToken.RadioGroupItemVerticalLast
+                        : ResourceToken.RadioGroupItemDefault];
+        }
     }
 }