ShrlAlgoToolkit/NeuWPF/NeoUI/Controls/ProgressBarStyle.xaml

<ResourceDictionary
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:internal="clr-namespace:NeumUI.Converters.Internal"
    xmlns:svd="clr-namespace:NeumUI.Controls.Decorations"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

    <ControlTemplate TargetType="{x:Type ProgressBar}" x:Key="ProgressHorizontalDefault">
        <ControlTemplate.Resources>
            <Storyboard RepeatBehavior="Forever" x:Key="ProgressIndeterminateHoriziontal">
                <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground.(Brush.RelativeTransform)                                        .(TransformGroup.Children)[3].(TranslateTransform.X)">
                    <EasingDoubleKeyFrame KeyTime="0" Value="-1" />
                    <EasingDoubleKeyFrame KeyTime="0:0:2" Value="1" />
                </DoubleAnimationUsingKeyFrames>
            </Storyboard>
        </ControlTemplate.Resources>
        <svd:SlotBorder
            Background="{TemplateBinding Background}"
            BorderBrush="{TemplateBinding BorderBrush}"
            BorderThickness="{TemplateBinding BorderThickness}"
            Intensity="0.7"
            Padding="2"
            x:Name="backgroundBorder">
            <Grid HorizontalAlignment="Left" x:Name="BarGrid">
                <!--  计算进度条宽度  -->
                <Grid.Width>
                    <MultiBinding Converter="{StaticResource ResourceKey=ValueToRangeWidth}" ConverterParameter="7">
                        <Binding
                            Mode="OneWay"
                            Path="Minimum"
                            RelativeSource="{RelativeSource TemplatedParent}" />
                        <Binding
                            Mode="OneWay"
                            Path="Maximum"
                            RelativeSource="{RelativeSource TemplatedParent}" />
                        <Binding
                            Mode="OneWay"
                            Path="Value"
                            RelativeSource="{RelativeSource TemplatedParent}" />
                        <Binding
                            Mode="OneWay"
                            Path="ActualWidth"
                            RelativeSource="{RelativeSource AncestorType={x:Type svd:SlotBorder}}" />
                    </MultiBinding>
                </Grid.Width>
                <!--  背景模糊效果  -->
                <Border
                    Background="{TemplateBinding Foreground}"
                    CornerRadius="3"
                    x:Name="borderBlur">
                    <Border.Effect>
                        <BlurEffect Radius="8" />
                    </Border.Effect>
                </Border>
                <!--  进度条  -->
                <Border
                    Background="{TemplateBinding Foreground}"
                    CornerRadius="3"
                    x:Name="borderProgress" />
            </Grid>

        </svd:SlotBorder>
        <ControlTemplate.Triggers>
            <Trigger Property="IsIndeterminate" Value="True">
                <Setter Property="Width" TargetName="BarGrid" Value="auto" />
                <Setter Property="HorizontalAlignment" TargetName="BarGrid" Value="Stretch" />
                <Setter Property="Foreground" Value="{DynamicResource PrimaryIndeterminateGradientBrush}" />
                <Trigger.EnterActions>
                    <BeginStoryboard Storyboard="{StaticResource ProgressIndeterminateHoriziontal}" x:Name="beginIndeterminate" />
                </Trigger.EnterActions>
                <Trigger.ExitActions>
                    <RemoveStoryboard BeginStoryboardName="beginIndeterminate" />
                </Trigger.ExitActions>
            </Trigger>
        </ControlTemplate.Triggers>
    </ControlTemplate>
    <!--
        Foreground: 控件的 Foreground 属性。
        (Brush.RelativeTransform): 这个 Foreground 画刷（Brush）的 RelativeTransform 属性。
        (TransformGroup.Children): 这个变换（Transform）的 Children 集合（这隐含地要求 RelativeTransform 必须是一个 TransformGroup）。
        [3]: Children 集合中的第四个元素（索引从0开始）。
        (TranslateTransform.X): 这个元素的 X 属性（这隐含地要求第四个元素必须是一个 TranslateTransform）。

        <LinearGradientBrush EndPoint="1,0" StartPoint="0,1" x:Key="PrimaryIndeterminateGradientBrush">
        <GradientStop Color="{StaticResource PrimaryDefaultColor}" Offset="0" />
        <GradientStop Color="{StaticResource PrimaryVariantColor}" Offset="0.7" />
        <GradientStop Color="{StaticResource PrimaryDefaultColor}" Offset="0.8" />
        <LinearGradientBrush.RelativeTransform>
            <TransformGroup>
                <ScaleTransform/>
                <SkewTransform/>
                <RotateTransform/>
                <TranslateTransform/>
            </TransformGroup>
        </LinearGradientBrush.RelativeTransform>
    </LinearGradientBrush>
    -->
    <ControlTemplate TargetType="{x:Type ProgressBar}" x:Key="ProgressVerticalDefault">
        <ControlTemplate.Resources>
            <Storyboard RepeatBehavior="Forever" x:Key="ProgressIndeterminateVertical">
                <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground.(Brush.RelativeTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)">
                    <EasingDoubleKeyFrame KeyTime="0" Value="1" />
                    <EasingDoubleKeyFrame KeyTime="0:0:2" Value="-1" />
                </DoubleAnimationUsingKeyFrames>
            </Storyboard>
        </ControlTemplate.Resources>
        <svd:SlotBorder
            Background="{TemplateBinding Background}"
            BorderBrush="{TemplateBinding BorderBrush}"
            BorderThickness="{TemplateBinding BorderThickness}"
            Intensity="0.7"
            Padding="2"
            x:Name="backgroundBorder">
            <Grid VerticalAlignment="Bottom" x:Name="BarGrid">
                <!--  计算进度条宽度  -->
                <Grid.Height>
                    <MultiBinding Converter="{x:Static internal:ValueToRangeWidthConverter.Instance}" ConverterParameter="7">
                        <Binding
                            Mode="OneWay"
                            Path="Minimum"
                            RelativeSource="{RelativeSource TemplatedParent}" />
                        <Binding
                            Mode="OneWay"
                            Path="Maximum"
                            RelativeSource="{RelativeSource TemplatedParent}" />
                        <Binding
                            Mode="OneWay"
                            Path="Value"
                            RelativeSource="{RelativeSource TemplatedParent}" />
                        <Binding
                            Mode="OneWay"
                            Path="ActualHeight"
                            RelativeSource="{RelativeSource AncestorType={x:Type svd:SlotBorder}}" />
                    </MultiBinding>
                </Grid.Height>
                <!--  背景模糊效果  -->
                <Border Background="{TemplateBinding Foreground}" CornerRadius="3">
                    <Border.Effect>
                        <BlurEffect Radius="8" />
                    </Border.Effect>
                </Border>
                <!--  进度条  -->
                <Border Background="{TemplateBinding Foreground}" CornerRadius="3" />
            </Grid>
        </svd:SlotBorder>
        <ControlTemplate.Triggers>
            <Trigger Property="IsIndeterminate" Value="True">
                <Setter Property="Height" TargetName="BarGrid" Value="auto" />
                <Setter Property="VerticalAlignment" TargetName="BarGrid" Value="Stretch" />
                <Setter Property="Foreground" Value="{DynamicResource PrimaryIndeterminateGradientBrush}" />
                <Trigger.EnterActions>
                    <BeginStoryboard Storyboard="{StaticResource ProgressIndeterminateVertical}" x:Name="beginIndeterminate" />
                </Trigger.EnterActions>
                <Trigger.ExitActions>
                    <RemoveStoryboard BeginStoryboardName="beginIndeterminate" />
                </Trigger.ExitActions>
            </Trigger>
        </ControlTemplate.Triggers>
    </ControlTemplate>

    <Style TargetType="{x:Type ProgressBar}">
        <Setter Property="Foreground" Value="{DynamicResource PrimaryGradientBrush}" />
        <Setter Property="Background" Value="{DynamicResource BackgroundLayoutBrush}" />
        <Setter Property="BorderBrush" Value="Transparent" />
        <Setter Property="Height" Value="20" />
        <Setter Property="HorizontalAlignment" Value="Stretch" />
        <Setter Property="BorderThickness" Value="1" />
        <Setter Property="Template" Value="{StaticResource ProgressHorizontalDefault}" />
        <Style.Triggers>
            <Trigger Property="Orientation" Value="Vertical">
                <Setter Property="Template" Value="{StaticResource ProgressVerticalDefault}" />
                <Setter Property="Width" Value="20" />
                <Setter Property="VerticalAlignment" Value="Stretch" />
                <Setter Property="VerticalContentAlignment" Value="Stretch" />
            </Trigger>
            <Trigger Property="IsEnabled" Value="false">
                <Setter Property="Foreground" Value="{DynamicResource PrimaryDisabledBrush}" />
                <Setter Property="IsIndeterminate" Value="False" />
            </Trigger>
        </Style.Triggers>
    </Style>
</ResourceDictionary>