BPA.SingleDevice/BPA.UIControl/Themes/TreeView.xaml

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:bpa="clr-namespace:BPA.UIControl"
                    xmlns:converter="clr-namespace:BPA.UIControl.Converters">

    <ResourceDictionary.MergedDictionaries>
        <ResourceDictionary Source="pack://application:,,,/BPA.UIControl;component/Themes/Resources/Default.xaml" />
    </ResourceDictionary.MergedDictionaries>

    <Style x:Key="ExpandCollapseToggleStyle" TargetType="{x:Type ToggleButton}">
        <Setter Property="Foreground" Value="{Binding Foreground, RelativeSource={RelativeSource AncestorType={x:Type TreeView}}}" />
        <Setter Property="Cursor" Value="Hand" />
        <Setter Property="Focusable" Value="False" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type ToggleButton}">
                    <Border Background="Transparent">
                        <bpa:Icon x:Name="ExpandPath"
                                  Foreground="{TemplateBinding Foreground}"
                                  RenderTransformOrigin="0.5 0.5"
                                  Type="{Binding Path=(bpa:TreeViewHelper.ExpandIconType), RelativeSource={RelativeSource AncestorType=TreeView}}">
                            <bpa:Icon.RenderTransform>
                                <RotateTransform x:Name="transform" Angle="0" />
                            </bpa:Icon.RenderTransform>
                        </bpa:Icon>
                    </Border>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsChecked" Value="True">
                            <Trigger.EnterActions>
                                <BeginStoryboard>
                                    <Storyboard>
                                        <DoubleAnimation Storyboard.TargetName="transform"
                                                         Storyboard.TargetProperty="Angle"
                                                         To="45"
                                                         Duration="0:0:0.15">
                                            <DoubleAnimation.EasingFunction>
                                                <CubicEase EasingMode="EaseOut" />
                                            </DoubleAnimation.EasingFunction>
                                        </DoubleAnimation>
                                    </Storyboard>
                                </BeginStoryboard>
                            </Trigger.EnterActions>
                            <Trigger.ExitActions>
                                <BeginStoryboard>
                                    <Storyboard>
                                        <DoubleAnimation Storyboard.TargetName="transform"
                                                         Storyboard.TargetProperty="Angle"
                                                         To="0"
                                                         Duration="0:0:0.15">
                                            <DoubleAnimation.EasingFunction>
                                                <CubicEase EasingMode="EaseOut" />
                                            </DoubleAnimation.EasingFunction>
                                        </DoubleAnimation>
                                    </Storyboard>
                                </BeginStoryboard>
                            </Trigger.ExitActions>
                            <Setter TargetName="ExpandPath" Property="Foreground" Value="{Binding Path=(bpa:TreeViewHelper.IconFocusedBrush), RelativeSource={RelativeSource AncestorType=TreeView}}" />
                        </Trigger>
                        <Trigger Property="IsMouseOver" Value="True">
                            <Setter TargetName="ExpandPath" Property="Foreground" Value="{Binding Path=(bpa:TreeViewHelper.IconFocusedBrush), RelativeSource={RelativeSource AncestorType=TreeView}}" />
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

    <Style x:Key="RubyerTreeViewItem" TargetType="{x:Type TreeViewItem}">
        <Setter Property="Background" Value="Transparent" />
        <Setter Property="Foreground" Value="{Binding Foreground, RelativeSource={RelativeSource AncestorType={x:Type TreeView}}}" />
        <Setter Property="FocusVisualStyle" Value="{StaticResource FocusVisual}" />
        <Setter Property="VerticalContentAlignment" Value="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}" />
        <Setter Property="HorizontalContentAlignment" Value="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}" />
        <Setter Property="bpa:ControlHelper.CornerRadius" Value="{Binding Path=(bpa:ControlHelper.CornerRadius), RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}" />
        <Setter Property="Padding" Value="{Binding Path=(bpa:ItemsControlHelper.ItemPadding), RelativeSource={RelativeSource AncestorType=TreeView}}" />
        <Setter Property="Margin" Value="{Binding Path=(bpa:ItemsControlHelper.ItemMargin), RelativeSource={RelativeSource AncestorType=TreeView}}" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type TreeViewItem}">
                    <Grid x:Name="root">
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="Auto" />
                            <ColumnDefinition Width="*" />
                        </Grid.ColumnDefinitions>
                        <Grid.RowDefinitions>
                            <RowDefinition Height="Auto" />
                            <RowDefinition />
                        </Grid.RowDefinitions>

                        <ToggleButton x:Name="Expander"
                                      Style="{StaticResource ExpandCollapseToggleStyle}"
                                      ClickMode="Press"
                                      IsChecked="{Binding IsExpanded, RelativeSource={RelativeSource TemplatedParent}}" />

                        <bpa:ControlMask Grid.Column="1"
                                         Background="{Binding Path=(bpa:ControlHelper.FocusedBrush), RelativeSource={RelativeSource AncestorType=TreeView}}"
                                         CornerRadius="{Binding Path=(bpa:ControlHelper.CornerRadius), RelativeSource={RelativeSource AncestorType=TreeView}}"
                                         IsActive="{TemplateBinding IsSelected}"
                                         MaskOpacity="{Binding Path=(bpa:ControlHelper.MaskOpacity), RelativeSource={RelativeSource AncestorType=TreeView}}" />

                        <Border x:Name="Bd"
                                Grid.Column="1"
                                Padding="{TemplateBinding Padding}"
                                Background="{TemplateBinding Background}"
                                BorderBrush="{TemplateBinding BorderBrush}"
                                BorderThickness="{TemplateBinding BorderThickness}"
                                SnapsToDevicePixels="true">
                            <ContentPresenter x:Name="PART_Header"
                                              HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                                              ContentSource="Header"
                                              SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
                        </Border>
                        <bpa:Transition Grid.Row="1"
                                        Grid.Column="1"
                                        IsShow="{TemplateBinding IsExpanded}"
                                        Type="CollapseUp">
                            <ItemsPresenter x:Name="ItemsHost"
                                            VerticalAlignment="Top"
                                            Opacity="0"
                                            Visibility="Collapsed" />
                        </bpa:Transition>
                    </Grid>

                    <ControlTemplate.Triggers>
                        <Trigger Property="IsExpanded" Value="True">
                            <Trigger.EnterActions>
                                <BeginStoryboard>
                                    <Storyboard>
                                        <DoubleAnimation Storyboard.TargetName="ItemsHost"
                                                         Storyboard.TargetProperty="Opacity"
                                                         To="1"
                                                         Duration="0:0:0.3">
                                            <DoubleAnimation.EasingFunction>
                                                <CubicEase EasingMode="EaseOut" />
                                            </DoubleAnimation.EasingFunction>
                                        </DoubleAnimation>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ItemsHost" Storyboard.TargetProperty="Visibility">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{x:Static Visibility.Visible}" />
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </BeginStoryboard>
                            </Trigger.EnterActions>
                            <Trigger.ExitActions>
                                <BeginStoryboard>
                                    <Storyboard>
                                        <DoubleAnimation Storyboard.TargetName="ItemsHost"
                                                         Storyboard.TargetProperty="Opacity"
                                                         To="0"
                                                         Duration="0:0:0.3">
                                            <DoubleAnimation.EasingFunction>
                                                <CubicEase EasingMode="EaseOut" />
                                            </DoubleAnimation.EasingFunction>
                                        </DoubleAnimation>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ItemsHost" Storyboard.TargetProperty="Visibility">
                                            <DiscreteObjectKeyFrame KeyTime="0:0:0.3" Value="{x:Static Visibility.Collapsed}" />
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </BeginStoryboard>
                            </Trigger.ExitActions>
                        </Trigger>
                        <Trigger Property="HasItems" Value="false">
                            <Setter TargetName="Expander" Property="Visibility" Value="Hidden" />
                        </Trigger>
                        <Trigger Property="IsEnabled" Value="false">
                            <Setter Property="Opacity" Value="{DynamicResource UnenableOpcity}" />
                        </Trigger>
                        <Trigger Property="IsSelected" Value="True">
                            <Setter Property="Foreground" Value="{Binding Path=(bpa:ControlHelper.FocusedForegroundBrush), RelativeSource={RelativeSource AncestorType=TreeView}}" />
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
        <Style.Triggers>
            <Trigger Property="VirtualizingPanel.IsVirtualizing" Value="true">
                <Setter Property="ItemsPanel">
                    <Setter.Value>
                        <ItemsPanelTemplate>
                            <VirtualizingStackPanel />
                        </ItemsPanelTemplate>
                    </Setter.Value>
                </Setter>
            </Trigger>
        </Style.Triggers>
    </Style>

    <Style x:Key="RubyerTreeView" TargetType="{x:Type TreeView}">
        <Setter Property="Background" Value="Transparent" />
        <Setter Property="BorderBrush" Value="{DynamicResource Border}" />
        <Setter Property="BorderThickness" Value="0" />
        <Setter Property="Foreground" Value="{DynamicResource DefaultForeground}" />
        <Setter Property="VerticalContentAlignment" Value="Center" />
        <Setter Property="HorizontalContentAlignment" Value="Stretch" />
        <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto" />
        <Setter Property="ScrollViewer.PanningMode" Value="Both" />
        <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto" />
        <Setter Property="Stylus.IsFlicksEnabled" Value="False" />
        <Setter Property="SnapsToDevicePixels" Value="True" />
        <Setter Property="ItemContainerStyle" Value="{StaticResource RubyerTreeViewItem}" />
        <Setter Property="bpa:ControlHelper.CornerRadius" Value="0" />
        <Setter Property="bpa:ControlHelper.FocusedBrush" Value="{DynamicResource Mask}" />
        <Setter Property="bpa:ControlHelper.FocusedForegroundBrush" Value="{DynamicResource DefaultForeground}" />
        <Setter Property="bpa:ControlHelper.CornerRadius" Value="0" />
        <Setter Property="bpa:ControlHelper.MaskOpacity" Value="0.6" />
        <Setter Property="bpa:ItemsControlHelper.ItemMargin" Value="0" />
        <Setter Property="bpa:ItemsControlHelper.ItemPadding" Value="5" />
        <Setter Property="bpa:TreeViewHelper.IconFocusedBrush" Value="{DynamicResource Primary}" />
        <Setter Property="bpa:TreeViewHelper.RightClickToSelected" Value="True" />
        <Setter Property="bpa:TreeViewHelper.IsBindable" Value="True" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type TreeView}">
                    <Border x:Name="Bd"
                            BorderBrush="{TemplateBinding BorderBrush}"
                            BorderThickness="{TemplateBinding BorderThickness}"
                            SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}">
                        <ScrollViewer x:Name="_tv_scrollviewer_"
                                      Padding="{TemplateBinding Padding}"
                                      Background="{TemplateBinding Background}"
                                      CanContentScroll="false"
                                      Focusable="false"
                                      HorizontalScrollBarVisibility="{TemplateBinding ScrollViewer.HorizontalScrollBarVisibility}"
                                      SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
                                      VerticalScrollBarVisibility="{TemplateBinding ScrollViewer.VerticalScrollBarVisibility}">
                            <ItemsPresenter x:Name="items" OverridesDefaultStyle="True" />
                        </ScrollViewer>
                    </Border>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsEnabled" Value="False">
                            <Setter TargetName="Bd" Property="Opacity" Value="{DynamicResource UnenableOpcity}" />
                        </Trigger>
                        <Trigger Property="VirtualizingPanel.IsVirtualizing" Value="True">
                            <Setter TargetName="_tv_scrollviewer_" Property="CanContentScroll" Value="True" />
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
        <Style.Triggers>
            <Trigger Property="VirtualizingPanel.IsVirtualizing" Value="True">
                <Setter Property="ItemsPanel">
                    <Setter.Value>
                        <ItemsPanelTemplate>
                            <VirtualizingStackPanel />
                        </ItemsPanelTemplate>
                    </Setter.Value>
                </Setter>
            </Trigger>
        </Style.Triggers>
    </Style>
</ResourceDictionary>