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MaterialDesignTheme.Expander.xaml
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MaterialDesignTheme.Expander.xaml
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<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:wpf="clr-namespace:MaterialDesignThemes.Wpf"
xmlns:converters="clr-namespace:MaterialDesignThemes.Wpf.Converters">
<Duration x:Key="ExpandDuration">0:0:0.250</Duration>
<Duration x:Key="CollapseDuration">0:0:0.200</Duration>
<KeyTime x:Key="ExpandKeyTime">0:0:0.250</KeyTime>
<KeyTime x:Key="CollapseKeyTime">0:0:0.200</KeyTime>
<Style x:Key="MaterialDesignExpanderToggleButton" TargetType="{x:Type ToggleButton}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ToggleButton}">
<Border Background="Transparent">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CheckStates">
<VisualState x:Name="Checked">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="ExpandPathRotateTransform" Storyboard.TargetProperty="Angle">
<EasingDoubleKeyFrame KeyTime="{StaticResource ExpandKeyTime}" Value="180"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Unchecked">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="ExpandPathRotateTransform" Storyboard.TargetProperty="Angle">
<EasingDoubleKeyFrame KeyTime="{StaticResource CollapseKeyTime}" Value="0"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<wpf:PackIcon x:Name="ExpandPath" Kind="ChevronDown"
Opacity="0.38" Height="24" Width="24"
Foreground="{TemplateBinding Foreground}"
RenderTransformOrigin="0.5 0.5">
<wpf:PackIcon.RenderTransform>
<RotateTransform x:Name="ExpandPathRotateTransform"/>
</wpf:PackIcon.RenderTransform>
</wpf:PackIcon>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="MaterialDesignHorizontalHeaderStyle" TargetType="{x:Type ToggleButton}">
<Setter Property="Background" Value="Transparent"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ToggleButton}">
<Border Background="{TemplateBinding Background}" Padding="{Binding Path=(wpf:ExpanderAssist.HorizontalHeaderPadding) , RelativeSource={RelativeSource AncestorType=Expander, AncestorLevel=1}}">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="16"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<ContentPresenter Grid.Column="0"
VerticalAlignment="Center"
Content="{TemplateBinding Content}"
ContentTemplate="{TemplateBinding ContentTemplate}"
ContentStringFormat="{TemplateBinding ContentStringFormat}"
ContentTemplateSelector="{TemplateBinding ContentTemplateSelector}"/>
<ToggleButton x:Name="ExpanderButton"
Grid.Column="2"
VerticalAlignment="Center"
RenderTransformOrigin="0.5 0.5"
Foreground="{TemplateBinding Foreground}"
IsChecked="{Binding Path=IsChecked, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}">
<ToggleButton.Style>
<Style TargetType="{x:Type ToggleButton}" BasedOn="{StaticResource MaterialDesignExpanderToggleButton}">
<Style.Triggers>
<DataTrigger Binding="{Binding ExpandDirection, RelativeSource={RelativeSource AncestorType=Expander, AncestorLevel=1}}" Value="Up">
<Setter Property="RenderTransform">
<Setter.Value>
<RotateTransform Angle="180"/>
</Setter.Value>
</Setter>
</DataTrigger>
</Style.Triggers>
</Style>
</ToggleButton.Style>
</ToggleButton>
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="MaterialDesignVerticalHeaderStyle" TargetType="{x:Type ToggleButton}">
<Setter Property="Background" Value="Transparent"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ToggleButton}">
<Border Background="{TemplateBinding Background}" Padding="{Binding Path=(wpf:ExpanderAssist.VerticalHeaderPadding) , RelativeSource={RelativeSource AncestorType=Expander, AncestorLevel=1}}">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="16"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<ToggleButton x:Name="ExpanderButton"
Grid.Row="0"
VerticalAlignment="Center"
RenderTransformOrigin="0.5 0.5"
Foreground="{TemplateBinding Foreground}"
IsChecked="{Binding Path=IsChecked, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}">
<ToggleButton.Style>
<Style TargetType="{x:Type ToggleButton}" BasedOn="{StaticResource MaterialDesignExpanderToggleButton}">
<Style.Triggers>
<DataTrigger Binding="{Binding ExpandDirection, RelativeSource={RelativeSource AncestorType=Expander, AncestorLevel=1}}" Value="Left">
<Setter Property="RenderTransform">
<Setter.Value>
<RotateTransform Angle="90"/>
</Setter.Value>
</Setter>
</DataTrigger>
<DataTrigger Binding="{Binding ExpandDirection, RelativeSource={RelativeSource AncestorType=Expander, AncestorLevel=1}}" Value="Right">
<Setter Property="RenderTransform">
<Setter.Value>
<RotateTransform Angle="-90"/>
</Setter.Value>
</Setter>
</DataTrigger>
</Style.Triggers>
</Style>
</ToggleButton.Style>
</ToggleButton>
<ContentPresenter Grid.Row="2"
VerticalAlignment="Center"
Content="{TemplateBinding Content}"
ContentTemplate="{TemplateBinding ContentTemplate}"
ContentStringFormat="{TemplateBinding ContentStringFormat}"
ContentTemplateSelector="{TemplateBinding ContentTemplateSelector}"/>
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="MaterialDesignExpander" TargetType="{x:Type Expander}">
<Setter Property="BorderThickness" Value="0" />
<Setter Property="Background" Value="{DynamicResource MaterialDesignPaper}" />
<Setter Property="Foreground" Value="{Binding RelativeSource={RelativeSource AncestorType={x:Type FrameworkElement}}, Path=(TextElement.Foreground)}"/>
<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
<Setter Property="VerticalContentAlignment" Value="Top"/>
<Setter Property="wpf:ExpanderAssist.HeaderBackground" Value="Transparent" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Expander}">
<ControlTemplate.Resources>
<converters:ExpanderRotateAngleConverter x:Key="ExpanderRotateAngleConverter" />
</ControlTemplate.Resources>
<Border BorderThickness="{TemplateBinding BorderThickness}" BorderBrush="{TemplateBinding BorderBrush}">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="ExpansionStates">
<VisualStateGroup.Transitions>
<VisualTransition To="Expanded">
<Storyboard>
<DoubleAnimation Storyboard.TargetProperty="Opacity"
Storyboard.TargetName="ContentPanel"
From="0" To="1"
Duration="{StaticResource ExpandDuration}"/>
<DoubleAnimation Storyboard.TargetName="ContentSiteScaleTransform"
Storyboard.TargetProperty="(ScaleTransform.ScaleY)"
From="0" To="1"
Duration="{StaticResource ExpandDuration}">
<DoubleAnimation.EasingFunction>
<CubicEase EasingMode="EaseInOut"/>
</DoubleAnimation.EasingFunction>
</DoubleAnimation>
</Storyboard>
</VisualTransition>
<VisualTransition To="Collapsed">
<Storyboard>
<DoubleAnimation Storyboard.TargetProperty="Opacity"
Storyboard.TargetName="ContentPanel"
From="1" To="0"
Duration="{StaticResource CollapseDuration}"/>
<DoubleAnimation Storyboard.TargetName="ContentSiteScaleTransform"
Storyboard.TargetProperty="(ScaleTransform.ScaleY)"
From="1" To="0"
Duration="{StaticResource CollapseDuration}">
<DoubleAnimation.EasingFunction>
<CubicEase EasingMode="EaseInOut"/>
</DoubleAnimation.EasingFunction>
</DoubleAnimation>
</Storyboard>
</VisualTransition>
</VisualStateGroup.Transitions>
<VisualState x:Name="Expanded">
<Storyboard>
<DoubleAnimation Storyboard.TargetProperty="Opacity"
Storyboard.TargetName="ContentPanel"
To="1"
Duration="0"/>
<DoubleAnimation Storyboard.TargetName="ContentSiteScaleTransform"
Storyboard.TargetProperty="(ScaleTransform.ScaleY)"
To="1"
Duration="0" />
</Storyboard>
</VisualState>
<VisualState x:Name="Collapsed">
<Storyboard>
<DoubleAnimation Storyboard.TargetProperty="Opacity"
Storyboard.TargetName="ContentPanel"
To="0"
Duration="0"/>
<DoubleAnimation Storyboard.TargetName="ContentSiteScaleTransform"
Storyboard.TargetProperty="(ScaleTransform.ScaleY)"
To="0"
Duration="0" />
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<DockPanel Background="{TemplateBinding Background}">
<ToggleButton Name="HeaderSite"
Focusable="False"
IsTabStop="False"
DockPanel.Dock="Top"
BorderThickness="0" Cursor="Hand"
IsChecked="{Binding Path=IsExpanded, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}"
Style="{StaticResource MaterialDesignHorizontalHeaderStyle}"
TextElement.FontSize="{TemplateBinding wpf:ExpanderAssist.HeaderFontSize}"
Opacity="0.87"
Foreground="{TemplateBinding Foreground}"
Background="{TemplateBinding wpf:ExpanderAssist.HeaderBackground}"
Content="{TemplateBinding Header}"
ContentTemplate="{TemplateBinding HeaderTemplate}"
ContentTemplateSelector="{TemplateBinding HeaderTemplateSelector}"
ContentStringFormat="{TemplateBinding HeaderStringFormat}"/>
<Border Name="ContentSite">
<Border.LayoutTransform>
<TransformGroup>
<ScaleTransform x:Name="ContentSiteScaleTransform" />
<RotateTransform Angle="{Binding Path=ExpandDirection, RelativeSource={RelativeSource AncestorType=Expander}, Converter={StaticResource ExpanderRotateAngleConverter}}"/>
</TransformGroup>
</Border.LayoutTransform>
<Grid Name="ContentPanel"
Margin="{TemplateBinding Padding}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}">
<Grid.LayoutTransform>
<RotateTransform Angle="{Binding Path=ExpandDirection, RelativeSource={RelativeSource AncestorType=Expander}, Converter={StaticResource ExpanderRotateAngleConverter}, ConverterParameter=-1}"/>
</Grid.LayoutTransform>
<ContentPresenter Name="PART_Content" Focusable="False"
ContentTemplate="{TemplateBinding ContentTemplate}"
ContentStringFormat="{TemplateBinding ContentStringFormat}"
ContentTemplateSelector="{TemplateBinding ContentTemplateSelector}"/>
</Grid>
</Border>
</DockPanel>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="ExpandDirection" Value="Right">
<Setter Property="DockPanel.Dock" TargetName="HeaderSite" Value="Left"/>
<Setter Property="Style" TargetName="HeaderSite" Value="{StaticResource MaterialDesignVerticalHeaderStyle}"/>
</Trigger>
<Trigger Property="ExpandDirection" Value="Left">
<Setter Property="DockPanel.Dock" TargetName="HeaderSite" Value="Right"/>
<Setter Property="Style" TargetName="HeaderSite" Value="{StaticResource MaterialDesignVerticalHeaderStyle}"/>
</Trigger>
<Trigger Property="ExpandDirection" Value="Up">
<Setter Property="DockPanel.Dock" TargetName="HeaderSite" Value="Bottom"/>
<Setter Property="Style" TargetName="HeaderSite" Value="{StaticResource MaterialDesignHorizontalHeaderStyle}"/>
</Trigger>
<Trigger Property="ExpandDirection" Value="Down">
<Setter Property="DockPanel.Dock" TargetName="HeaderSite" Value="Top"/>
<Setter Property="Style" TargetName="HeaderSite" Value="{StaticResource MaterialDesignHorizontalHeaderStyle}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ResourceDictionary>