TeamAAS-2.5/TeamAAS.Base/TeamAAS.FlowEngine/FlowEditor/FlowEditorView.xaml

<UserControl x:Class="TeamAAS.FlowEditor.FlowEditorView"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
             xmlns:loc="clr-namespace:TeamAAS.Localization;assembly=TeamAAS.Global"
             xmlns:hc="https://handyorg.github.io/handycontrol"
             xmlns:fe="clr-namespace:TeamAAS.FlowEditor.Controls"
             xmlns:conv="clr-namespace:TeamAAS.FlowEditor.Converters"
             xmlns:ip="clr-namespace:MahApps.Metro.IconPacks;assembly=MahApps.Metro.IconPacks.Material"
             xmlns:g="clr-namespace:TeamAAS;assembly=TeamAAS.Global">

    <UserControl.Resources>
        <!-- bool 取反：只读模式禁用编辑按钮 -->
        <conv:InverseBoolConverter x:Key="InverseBoolConverter"/>

        <!-- 图标 Kind 名 → PackIconMaterialKind -->
        <g:IconKindConverter x:Key="IconKind"/>

        <!-- 画布网格背景（透明底 + 浅灰网格线，叠加在 SecondaryBorderBrush 上） -->
        <DrawingBrush x:Key="GridBrush" TileMode="Tile" Viewport="0,0,20,20" ViewportUnits="Absolute">
            <DrawingBrush.Drawing>
                <DrawingGroup>
                    <GeometryDrawing Geometry="M0,0 L20,0 M0,0 L0,20">
                        <GeometryDrawing.Pen>
                            <Pen Brush="{DynamicResource SecondaryBorderBrush}"  Thickness="0.5"/>
                        </GeometryDrawing.Pen>
                    </GeometryDrawing>
                </DrawingGroup>
            </DrawingBrush.Drawing>
        </DrawingBrush>

        <!-- MoveThumb 透明模板 -->
        <Style TargetType="{x:Type fe:MoveThumb}">
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type fe:MoveThumb}">
                        <Rectangle Fill="Transparent"/>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

        <!-- 画布垂直滚动条：扁平细滑块，颜色跟随主题（悬停变强调色） -->
        <Style x:Key="CanvasVScrollBar" TargetType="ScrollBar">
            <Setter Property="Background" Value="Transparent"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="ScrollBar">
                        <Grid Background="Transparent">
                            <Track x:Name="PART_Track" IsDirectionReversed="True">
                                <Track.DecreaseRepeatButton>
                                    <RepeatButton Command="ScrollBar.PageUpCommand" Opacity="0" Focusable="False"/>
                                </Track.DecreaseRepeatButton>
                                <Track.IncreaseRepeatButton>
                                    <RepeatButton Command="ScrollBar.PageDownCommand" Opacity="0" Focusable="False"/>
                                </Track.IncreaseRepeatButton>
                                <Track.Thumb>
                                    <Thumb>
                                        <Thumb.Template>
                                            <ControlTemplate TargetType="Thumb">
                                                <Border x:Name="ThumbBorder" Margin="4,1" CornerRadius="3" MinHeight="28"
                                                        Background="{DynamicResource BorderBrush}"/>
                                                <ControlTemplate.Triggers>
                                                    <Trigger Property="IsMouseOver" Value="True">
                                                        <Setter TargetName="ThumbBorder" Property="Background" Value="{DynamicResource PrimaryBrush}"/>
                                                    </Trigger>
                                                </ControlTemplate.Triggers>
                                            </ControlTemplate>
                                        </Thumb.Template>
                                    </Thumb>
                                </Track.Thumb>
                            </Track>
                        </Grid>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

        <!-- 画布水平滚动条：同上（横向） -->
        <Style x:Key="CanvasHScrollBar" TargetType="ScrollBar">
            <Setter Property="Background" Value="Transparent"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="ScrollBar">
                        <Grid Background="Transparent">
                            <Track x:Name="PART_Track">
                                <Track.DecreaseRepeatButton>
                                    <RepeatButton Command="ScrollBar.PageLeftCommand" Opacity="0" Focusable="False"/>
                                </Track.DecreaseRepeatButton>
                                <Track.IncreaseRepeatButton>
                                    <RepeatButton Command="ScrollBar.PageRightCommand" Opacity="0" Focusable="False"/>
                                </Track.IncreaseRepeatButton>
                                <Track.Thumb>
                                    <Thumb>
                                        <Thumb.Template>
                                            <ControlTemplate TargetType="Thumb">
                                                <Border x:Name="ThumbBorder" Margin="1,4" CornerRadius="3" MinWidth="28"
                                                        Background="{DynamicResource BorderBrush}"/>
                                                <ControlTemplate.Triggers>
                                                    <Trigger Property="IsMouseOver" Value="True">
                                                        <Setter TargetName="ThumbBorder" Property="Background" Value="{DynamicResource PrimaryBrush}"/>
                                                    </Trigger>
                                                </ControlTemplate.Triggers>
                                            </ControlTemplate>
                                        </Thumb.Template>
                                    </Thumb>
                                </Track.Thumb>
                            </Track>
                        </Grid>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

        <!-- 执行历史列表项样式 -->
        <Style x:Key="HistoryListItemStyle" TargetType="ListBoxItem">
            <Setter Property="Padding" Value="6,2"/>
            <Setter Property="Margin" Value="0,1"/>
            <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="ListBoxItem">
                        <Border x:Name="Bd" Background="Transparent" CornerRadius="3" Padding="{TemplateBinding Padding}">
                            <ContentPresenter/>
                        </Border>
                        <ControlTemplate.Triggers>
                            <Trigger Property="IsSelected" Value="True">
                                <Setter TargetName="Bd" Property="Background" Value="{DynamicResource PrimaryBrush}"/>
                                <Setter Property="TextElement.Foreground" Value="White"/>
                            </Trigger>
                            <Trigger Property="IsMouseOver" Value="True">
                                <Setter TargetName="Bd" Property="Background" Value="{DynamicResource SecondaryRegionBrush}"/>
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

        <!-- ConnectorControl 连接点样式 -->
        <Style TargetType="{x:Type fe:ConnectorControl}">
            <Setter Property="Width" Value="14"/>
            <Setter Property="Height" Value="14"/>
            <Setter Property="Cursor" Value="Cross"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type fe:ConnectorControl}">
                        <Grid Width="14" Height="14">
                            <Ellipse Fill="Transparent" Margin="-8"/>
                            <Ellipse Width="10" Height="10"
                                     Fill="{DynamicResource PrimaryBrush}"
                                     Stroke="#FFFFFF" StrokeThickness="1.5"/>
                        </Grid>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

        <!-- NodeControl 节点样式 -->
        <Style TargetType="{x:Type fe:NodeControl}">
            <Setter Property="SnapsToDevicePixels" Value="True"/>
            <Setter Property="HorizontalAlignment" Value="Left"/>
            <Setter Property="VerticalAlignment" Value="Top"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type fe:NodeControl}">
                        <Grid >
                            <!-- ========== 矩形节点（Normal/ToolBlock） ========== -->
                            <Border x:Name="RectNode" CornerRadius="4"
                                    BorderBrush="{DynamicResource PrimaryBrush}"
                                    BorderThickness="2"
                                    Background="{DynamicResource RegionBrush}"
                                    MinHeight="40"
                                    ClipToBounds="True">
                                <StackPanel Orientation="Horizontal" Background="{DynamicResource RegionBrush}">
                                    <!-- 左侧色条 + 图标 -->
                                    <Border x:Name="RectLeftBar" Background="{DynamicResource PrimaryBrush}"
                                            CornerRadius="3,0,0,3" Width="32">
                                        <ip:PackIconMaterial Width="16" Height="16"
                                              Kind="{Binding IconGeometry, Converter={StaticResource IconKind}}" Foreground="White"
                                              HorizontalAlignment="Center"
                                              VerticalAlignment="Center"/>
                                    </Border>
                                    <!-- 中间：名称 + 耗时 -->
                                    <StackPanel VerticalAlignment="Center" Margin="8,0,8,0" MinWidth="100" >
                                        <StackPanel Orientation="Horizontal">
                                            <TextBlock Text="{Binding NodeName}"
                                                       Foreground="{DynamicResource PrimaryTextBrush}"
                                                       FontSize="15"
                                                       FontFamily="Microsoft YaHei"
                                                       TextTrimming="CharacterEllipsis"/>
                                            <TextBlock Text="{Binding CostTimeText}"
                                                       MinWidth="35"
                                                       Foreground="{DynamicResource SecondaryTextBrush}" FontSize="11"
                                                       Margin="8,0,0,0"
                                                       VerticalAlignment="Center"/>
                                        </StackPanel>
                                    </StackPanel>
                                    <!-- 右侧色条 + 状态圆 -->
                                    <Border x:Name="RectRightBar" Background="{DynamicResource PrimaryBrush}"
                                            CornerRadius="0,3,3,0" Width="20">
                                        <Ellipse Width="10" Height="10"
                                                 Fill="{Binding StatusColor}"
                                                 HorizontalAlignment="Center"
                                                 VerticalAlignment="Center"/>
                                    </Border>
                                </StackPanel>
                            </Border>

                            <!-- ========== 循环节点（ForLoop） ========== -->
                            <Border x:Name="LoopNode" Visibility="Collapsed"
                                    MinWidth="200" MinHeight="35"
                                    CornerRadius="4"
                                    BorderBrush="{DynamicResource DarkInfoBrush}"
                                    BorderThickness="0"
                                    Background="{DynamicResource RegionBrush}"
                                    ClipToBounds="True">
                                <StackPanel Background="{DynamicResource RegionBrush}">
                                    <!-- 头部色条 -->
                                    <Border Background="{DynamicResource DarkInfoBrush}"
                                            CornerRadius="3,3,0,0" Padding="8,4">
                                        <TextBlock Text="{loc:Translate '循环'}" Foreground="White"
                                                   FontSize="11" FontWeight="Bold"
                                                   HorizontalAlignment="Center"
                                                   FontFamily="Microsoft YaHei"/>
                                    </Border>
                                    <!-- 内容 -->
                                    <StackPanel Orientation="Horizontal" Margin="8,6,6,6">
                                        <ip:PackIconMaterial Width="14" Height="14"
                                              Kind="{Binding IconGeometry, Converter={StaticResource IconKind}}"
                                              Foreground="{DynamicResource DarkInfoBrush}"
                                              VerticalAlignment="Center"/>
                                        <TextBlock Text="{Binding NodeName}"
                                                   Foreground="{DynamicResource PrimaryTextBrush}"
                                                   FontSize="13"
                                                   FontFamily="Microsoft YaHei"
                                                   Margin="6,0,0,0"
                                                   TextTrimming="CharacterEllipsis"/>
                                        <TextBlock Text="{Binding CostTimeText}"
                                                   Foreground="{DynamicResource SecondaryTextBrush}" FontSize="11"
                                                   Margin="8,0,0,0"
                                                   VerticalAlignment="Center"/>
                                    </StackPanel>
                                </StackPanel>
                            </Border>

                            <!-- ========== 组合节点（Group）- 堆叠效果 ========== -->
                            <Grid x:Name="GroupNode" Visibility="Collapsed" MinWidth="150" MinHeight="40" >
                                <!-- 底层堆叠2（最远） -->
                                <Border CornerRadius="4" BorderThickness="1.5"
                                        BorderBrush="{DynamicResource PrimaryBrush}" Background="{DynamicResource PrimaryBrush}"
                                        Margin="6,6,-6,-6" Opacity="0.3"/>
                                <!-- 底层堆叠1 -->
                                <Border CornerRadius="4" BorderThickness="1.5"
                                        BorderBrush="{DynamicResource PrimaryBrush}" Background="{DynamicResource PrimaryBrush}"
                                        Margin="3,3,-3,-3" Opacity="0.5"/>
                                <!-- 主区块 -->
                                <Border x:Name="GroupMainBorder" CornerRadius="4" BorderThickness="2"
                                        BorderBrush="{DynamicResource PrimaryBrush}"
                                        Background="{DynamicResource RegionBrush}"
                                        ClipToBounds="True">
                                    <StackPanel Orientation="Horizontal" Background="{DynamicResource RegionBrush}">
                                        <Border Background="{DynamicResource PrimaryBrush}" CornerRadius="3,0,0,3" Width="32">
                                            <ip:PackIconMaterial Width="16" Height="16"
                                                  Kind="{Binding IconGeometry, Converter={StaticResource IconKind}}" Foreground="White"
                                                  HorizontalAlignment="Center" VerticalAlignment="Center"/>
                                        </Border>
                                        <StackPanel VerticalAlignment="Center" Margin="8,0,16,0" MinWidth="100" >
                                            <StackPanel Orientation="Horizontal">
                                                <TextBlock Text="{Binding NodeName}"
                                                           Foreground="{DynamicResource PrimaryTextBrush}"
                                                           FontSize="13" FontFamily="Microsoft YaHei"
                                                           TextTrimming="CharacterEllipsis"/>
                                                <TextBlock Text="{Binding CostTimeText}"
                                                           MinWidth="20"
                                                           Foreground="{DynamicResource SecondaryTextBrush}" FontSize="11"
                                                           Margin="8,0,0,0" VerticalAlignment="Center"/>
                                            </StackPanel>
                                            <TextBlock Text="{loc:Translate '组合模块'}" FontSize="10"
                                                       Foreground="{DynamicResource SecondaryTextBrush}"
                                                       Margin="0,2,0,0"/>
                                        </StackPanel>
                                        <Border Background="{DynamicResource PrimaryBrush}" CornerRadius="0,3,3,0" Width="20">
                                            <Ellipse Width="10" Height="10" Fill="{Binding StatusColor}"
                                                     HorizontalAlignment="Center" VerticalAlignment="Center"/>
                                        </Border>
                                    </StackPanel>
                                </Border>
                            </Grid>

                            <!-- ========== 结束节点（End）- 圆角胶囊形 ========== -->
                            <Grid x:Name="EndNode" Visibility="Collapsed">
                                <Border x:Name="EndMainBorder" CornerRadius="26" BorderThickness="2"
                                        BorderBrush="#D32F2F"
                                        Background="{DynamicResource RegionBrush}"
                                        MinWidth="140" MinHeight="50">
                                    <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center">
                                        <ip:PackIconMaterial Width="14" Height="14"
                                              Kind="{Binding IconGeometry, Converter={StaticResource IconKind}}" Foreground="#D32F2F"
                                              VerticalAlignment="Center"/>
                                        <TextBlock Text="{Binding NodeName}"
                                                   Foreground="{DynamicResource PrimaryTextBrush}"
                                                   FontSize="13" FontFamily="Microsoft YaHei"
                                                   Margin="6,0,0,0" VerticalAlignment="Center"
                                                   TextTrimming="CharacterEllipsis"/>
                                        <TextBlock Text="{Binding CostTimeText}"
                                                   Foreground="{DynamicResource SecondaryTextBrush}" FontSize="11"
                                                   Margin="8,0,0,0" VerticalAlignment="Center"/>
                                    </StackPanel>
                                </Border>
                            </Grid>

                            <!-- ========== 菱形节点（Decision） ========== -->
                            <Grid x:Name="DiamondNode" Visibility="Collapsed"
                                  Width="180" Height="50">
                                <Path x:Name="DiamondPath"
                                      Data="M0.12,0 L0.88,0 L1,0.5 L0.88,1 L0.12,1 L0,0.5 Z"
                                      Stretch="Fill"
                                      Fill="{DynamicResource RegionBrush}"
                                      Stroke="{DynamicResource DarkWarningBrush}"
                                      StrokeThickness="1.5"/>
                                <StackPanel HorizontalAlignment="Center"
                                            VerticalAlignment="Center"
                                            Margin="30,4">
                                    <TextBlock Text="{Binding NodeName}"
                                               Foreground="{DynamicResource PrimaryTextBrush}"
                                               FontSize="12"
                                               FontFamily="Microsoft YaHei"
                                               HorizontalAlignment="Center"
                                               TextTrimming="CharacterEllipsis"/>
                                    <TextBlock Text="{Binding CostTimeText}"
                                               Foreground="{DynamicResource SecondaryTextBrush}" FontSize="10"
                                               HorizontalAlignment="Center"
                                               Margin="0,2,0,0"/>
                                </StackPanel>
                            </Grid>

                            <!-- ========== 异常分支节点（ExceptionBranch）- 深红矩形 + 警告色条 ========== -->
                            <Border x:Name="ExceptionBranchNode" Visibility="Collapsed"
                                    CornerRadius="4"
                                    BorderBrush="#B71C1C"
                                    BorderThickness="2"
                                    Background="{DynamicResource RegionBrush}"
                                    MinHeight="40"
                                    ClipToBounds="True">
                                <StackPanel Orientation="Horizontal" Background="{DynamicResource RegionBrush}">
                                    <Border Background="#B71C1C" CornerRadius="3,0,0,3" Width="32">
                                        <ip:PackIconMaterial Width="16" Height="16"
                                              Kind="{Binding IconGeometry, Converter={StaticResource IconKind}}" Foreground="White"
                                              HorizontalAlignment="Center" VerticalAlignment="Center"/>
                                    </Border>
                                    <StackPanel VerticalAlignment="Center" Margin="8,0,8,0" MinWidth="100">
                                        <StackPanel Orientation="Horizontal">
                                            <TextBlock Text="{Binding NodeName}"
                                                       Foreground="{DynamicResource PrimaryTextBrush}"
                                                       FontSize="15" FontFamily="Microsoft YaHei"
                                                       TextTrimming="CharacterEllipsis"/>
                                            <TextBlock Text="{Binding CostTimeText}"
                                                       MinWidth="20"
                                                       Foreground="{DynamicResource SecondaryTextBrush}" FontSize="11"
                                                       Margin="8,0,0,0" VerticalAlignment="Center"/>
                                        </StackPanel>
                                        <TextBlock Text="{loc:Translate '异常分支'}" FontSize="10"
                                                   Foreground="#B71C1C"
                                                   Margin="0,2,0,0"/>
                                    </StackPanel>
                                    <Border Background="#B71C1C" CornerRadius="0,3,3,0" Width="20">
                                        <Ellipse Width="10" Height="10" Fill="{Binding StatusColor}"
                                                 HorizontalAlignment="Center" VerticalAlignment="Center"/>
                                    </Border>
                                </StackPanel>
                            </Border>

                            <!-- 拖拽手柄 -->
                            <fe:MoveThumb Cursor="Hand" Panel.ZIndex="1"/>

                            <!-- 连接点容器（常驻可见，悬停高亮） -->
                            <Grid x:Name="ConnectorContainer"
                                  Opacity="0" Panel.ZIndex="2">
                                <!-- 左 -->
                                <fe:ConnectorControl PortIndex="0" Side="Left"
                                                     VerticalAlignment="Center"
                                                     HorizontalAlignment="Left"
                                                     Margin="-7,0,0,0"/>
                                <!-- 右 -->
                                <fe:ConnectorControl PortIndex="1" Side="Right"
                                                     VerticalAlignment="Center"
                                                     HorizontalAlignment="Right"
                                                     Margin="0,0,-7,0"/>
                                <!-- 上 -->
                                <fe:ConnectorControl PortIndex="2" Side="Top"
                                                     VerticalAlignment="Top"
                                                     HorizontalAlignment="Center"
                                                     Margin="0,-7,0,0"/>
                                <!-- 下 -->
                                <fe:ConnectorControl PortIndex="3" Side="Bottom"
                                                     VerticalAlignment="Bottom"
                                                     HorizontalAlignment="Center"
                                                     Margin="0,0,0,-7"/>
                            </Grid>
                        </Grid>
                        <ControlTemplate.Triggers>
                            <!-- 悬停：高亮连接点 -->
                            <Trigger Property="IsMouseOver" Value="True">
                                <Setter TargetName="ConnectorContainer" Property="Opacity" Value="1"/>
                                <Setter TargetName="RectNode" Property="BorderThickness" Value="2"/>
                                <Setter TargetName="LoopNode" Property="BorderThickness" Value="2"/>
                                <Setter TargetName="DiamondPath" Property="StrokeThickness" Value="2.5"/>
                            </Trigger>
                            <!-- 选中：加粗边框 + 显示连接点 -->
                            <DataTrigger Binding="{Binding IsSelected}" Value="True">
                                <Setter TargetName="RectNode" Property="BorderThickness" Value="2.5"/>
                                <Setter TargetName="LoopNode" Property="BorderThickness" Value="2.5"/>
                                <Setter TargetName="DiamondPath" Property="StrokeThickness" Value="3"/>
                                <Setter TargetName="ConnectorContainer" Property="Opacity" Value="1"/>
                            </DataTrigger>
                            <!-- Decision → 菱形 -->
                            <DataTrigger Binding="{Binding Category}" Value="Decision">
                                <Setter TargetName="RectNode" Property="Visibility" Value="Collapsed"/>
                                <Setter TargetName="LoopNode" Property="Visibility" Value="Collapsed"/>
                                <Setter TargetName="DiamondNode" Property="Visibility" Value="Visible"/>
                                <Setter TargetName="GroupNode" Property="Visibility" Value="Collapsed"/>
                                <Setter TargetName="EndNode" Property="Visibility" Value="Collapsed"/>
                            </DataTrigger>
                            <!-- ForLoop → 循环头 -->
                            <DataTrigger Binding="{Binding Category}" Value="ForLoop">
                                <Setter TargetName="RectNode" Property="Visibility" Value="Collapsed"/>
                                <Setter TargetName="LoopNode" Property="Visibility" Value="Visible"/>
                                <Setter TargetName="DiamondNode" Property="Visibility" Value="Collapsed"/>
                                <Setter TargetName="GroupNode" Property="Visibility" Value="Collapsed"/>
                                <Setter TargetName="EndNode" Property="Visibility" Value="Collapsed"/>
                            </DataTrigger>
                            <!-- Group → 组合模块（堆叠） -->
                            <DataTrigger Binding="{Binding Category}" Value="Group">
                                <Setter TargetName="RectNode" Property="Visibility" Value="Collapsed"/>
                                <Setter TargetName="LoopNode" Property="Visibility" Value="Collapsed"/>
                                <Setter TargetName="DiamondNode" Property="Visibility" Value="Collapsed"/>
                                <Setter TargetName="GroupNode" Property="Visibility" Value="Visible"/>
                                <Setter TargetName="EndNode" Property="Visibility" Value="Collapsed"/>
                            </DataTrigger>
                            <!-- End → 结束节点（胶囊形） -->
                            <DataTrigger Binding="{Binding Category}" Value="End">
                                <Setter TargetName="RectNode" Property="Visibility" Value="Collapsed"/>
                                <Setter TargetName="LoopNode" Property="Visibility" Value="Collapsed"/>
                                <Setter TargetName="DiamondNode" Property="Visibility" Value="Collapsed"/>
                                <Setter TargetName="GroupNode" Property="Visibility" Value="Collapsed"/>
                                <Setter TargetName="EndNode" Property="Visibility" Value="Visible"/>
                            </DataTrigger>
                            <DataTrigger Binding="{Binding Category}" Value="ExceptionBranch">
                                <Setter TargetName="RectNode" Property="Visibility" Value="Collapsed"/>
                                <Setter TargetName="LoopNode" Property="Visibility" Value="Collapsed"/>
                                <Setter TargetName="DiamondNode" Property="Visibility" Value="Collapsed"/>
                                <Setter TargetName="GroupNode" Property="Visibility" Value="Collapsed"/>
                                <Setter TargetName="EndNode" Property="Visibility" Value="Collapsed"/>
                                <Setter TargetName="ExceptionBranchNode" Property="Visibility" Value="Visible"/>
                            </DataTrigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

        <!-- 工具箱项样式 -->
        <Style x:Key="ToolboxItem" TargetType="Border">
            <Setter Property="Background" Value="{DynamicResource RegionBrush}"/>
            <Setter Property="CornerRadius" Value="4"/>
            <Setter Property="Padding" Value="8,6"/>
            <Setter Property="Margin" Value="0,0,0,2"/>
            <Setter Property="Cursor" Value="Hand"/>
            <Style.Triggers>
                <Trigger Property="IsMouseOver" Value="True">
                    <Setter Property="Background" Value="{DynamicResource PrimaryBrush}"/>
                </Trigger>
            </Style.Triggers>
        </Style>
    </UserControl.Resources>

    <Grid Background="{DynamicResource SecondaryBorderBrush}">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="Auto"/>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="6"/>
            <ColumnDefinition Width="320" MinWidth="320"/>
        </Grid.ColumnDefinitions>

        <!-- 顶部工具栏 -->
        <Border Grid.Row="0" Grid.ColumnSpan="4" Height="46"
                Background="{DynamicResource RegionBrush}"
                BorderBrush="{DynamicResource BorderBrush}" BorderThickness="0,0,0,1">
            <StackPanel Orientation="Horizontal" VerticalAlignment="Center" Margin="8,0">
                <TextBlock Text="{loc:Translate '流程编辑'}" FontSize="14" FontWeight="Bold"
                           Foreground="{DynamicResource PrimaryTextBrush}" VerticalAlignment="Center" Margin="0,0,16,0"/>
                <Button Content="+" Width="40" Height="32" FontSize="14" Click="ZoomIn_Click" ToolTip="{loc:Translate '放大'}" Tag="{loc:Translate '放大画布视图'}"/>
                <Button Content="−" Width="40" Height="32" FontSize="14" Click="ZoomOut_Click" ToolTip="{loc:Translate '缩小'}" Margin="2,0" Tag="{loc:Translate '缩小画布视图'}"/>
                <TextBlock x:Name="TxtZoom" Text="100%" FontSize="12"
                           Foreground="{DynamicResource SecondaryTextBrush}" VerticalAlignment="Center" Margin="8,0"/>
                <Button Content="{loc:Translate '适应内容'}" Width="auto" Height="32" FontSize="14" Click="FitView_Click" ToolTip="{loc:Translate '缩放至所有节点可见'}" Tag="{loc:Translate '自动缩放至所有节点可见'}"/>
                <Separator Margin="8,4"/>
                <Button Content="{loc:Translate '导入'}" Width="auto" Height="32" FontSize="14" Command="{Binding ImportFlowCommand}"
                        IsEnabled="{Binding IsReadOnly, Converter={StaticResource InverseBoolConverter}}"
                        ToolTip="{loc:Translate '从文件导入流程'}" Tag="{loc:Translate '从 .aas 文件导入流程节点与连线'}"/>
                <Button Content="{loc:Translate '导出'}" Width="auto" Height="32" FontSize="14" Command="{Binding ExportFlowCommand}" ToolTip="{loc:Translate '导出当前流程到文件'}" Margin="2,0" Tag="{loc:Translate '导出当前流程到 .aas 文件'}"/>
                <Separator Margin="8,4"/>
                <Button x:Name="BtnRun" Content="{loc:Translate '▶ 运行'}" Width="auto" Height="32" FontSize="14" Click="RunFlow_Click" ToolTip="{loc:Translate '运行流程'}" Tag="{loc:Translate '从头开始运行当前流程，节点状态实时显示在画布上'}"/>
                <Button x:Name="BtnStop" Content="{loc:Translate '■ 停止'}" Width="auto" Height="32" FontSize="14" Click="StopFlow_Click" ToolTip="{loc:Translate '停止运行'}" Margin="2,0,0,0" IsEnabled="False" Tag="{loc:Translate '停止当前正在运行的流程'}"/>
            </StackPanel>
        </Border>

        <!-- 左: 工具箱（独立面板，可折叠） -->
        <Border x:Name="ToolboxPanel" Grid.Row="1" Grid.Column="0" Width="56" MaxWidth="220"
                ClipToBounds="True"
                Background="{DynamicResource RegionBrush}"
                BorderBrush="{DynamicResource BorderBrush}" BorderThickness="0,0,1,0">
            <Grid>
                <!-- EXPANDED: 完整工具箱 -->
                <DockPanel x:Name="ToolboxExpanded" Opacity="0" Visibility="Hidden">
                    <!-- 顶部：折叠按钮 + 标题 -->
                    <DockPanel DockPanel.Dock="Top" Margin="8,8,8,6">
                        <Button x:Name="BtnToolboxToggleExpanded" DockPanel.Dock="Right" Content="◀"  FontSize="11"
                                Click="BtnToolboxToggle_Click" ToolTip="{loc:Translate '折叠工具箱'}"
                                Background="Transparent" BorderThickness="1"
                                Foreground="{DynamicResource SecondaryTextBrush}"
                                BorderBrush="{DynamicResource BorderBrush}" 
                                Cursor="Hand"
                                HorizontalAlignment="Center" VerticalAlignment="Center"/>
                        <TextBlock Text="{loc:Translate '节点工具箱'}" FontSize="13" FontWeight="Bold"
                                   Foreground="{DynamicResource PrimaryTextBrush}" VerticalAlignment="Center"/>
                    </DockPanel>
                    <Separator Background="{DynamicResource BorderBrush}"/>
                    <ScrollViewer VerticalScrollBarVisibility="Auto">
                        <ItemsControl ItemsSource="{Binding ToolboxGroups}" Margin="4,4">
                            <ItemsControl.ItemTemplate>
                                <DataTemplate>
                                    <Expander Header="{Binding GroupName}" IsExpanded="True"
                                              FontSize="11" FontWeight="Bold"
                                              Foreground="{DynamicResource SecondaryTextBrush}"
                                              Margin="2,2" Padding="4,2">
                                        <ItemsControl ItemsSource="{Binding Items}">
                                            <ItemsControl.ItemTemplate>
                                                <DataTemplate>
                                                    <Border Style="{StaticResource ToolboxItem}"
                                                            MouseLeftButtonDown="ToolboxItem_MouseLeftButtonDown"
                                                            MouseMove="ToolboxItem_MouseMove">
                                                        <StackPanel Orientation="Horizontal">
                                                            <ip:PackIconMaterial Width="14" Height="14"
                                                                  Kind="{Binding IconGeometry, Converter={StaticResource IconKind}}"
                                                                  Foreground="{DynamicResource PrimaryTextBrush}"
                                                                  VerticalAlignment="Center"/>
                                                            <StackPanel Margin="8,0,0,0">
                                                                <TextBlock Text="{Binding DisplayName}"
                                                                           FontSize="12"
                                                                           Foreground="{DynamicResource PrimaryTextBrush}"/>
                                                                <TextBlock Text="{Binding Description}"
                                                                           FontSize="10"
                                                                           Foreground="{DynamicResource SecondaryTextBrush}"
                                                                           TextTrimming="CharacterEllipsis"/>
                                                            </StackPanel>
                                                        </StackPanel>
                                                    </Border>
                                                </DataTemplate>
                                            </ItemsControl.ItemTemplate>
                                        </ItemsControl>
                                    </Expander>
                                </DataTemplate>
                            </ItemsControl.ItemTemplate>
                        </ItemsControl>
                    </ScrollViewer>
                </DockPanel>

                <!-- COLLAPSED: 仅类型图标，Hover 弹 Popup -->
                <DockPanel x:Name="ToolboxCollapsed" Opacity="1.0" Visibility="Visible">
                    <!-- 顶部：展开按钮 -->
                    <Border DockPanel.Dock="Top" Margin="0,4,0,4">
                        <Button x:Name="BtnToolboxToggleCollapsed" Content="▶" Width="40" Height="32" FontSize="14"
                                Click="BtnToolboxToggle_Click" ToolTip="{loc:Translate '展开工具箱'}"
                                Background="Transparent" BorderThickness="0"
                                Foreground="{DynamicResource SecondaryTextBrush}" Cursor="Hand"
                                HorizontalAlignment="Center" VerticalAlignment="Center"/>
                    </Border>
                    <Separator Background="{DynamicResource BorderBrush}"/>
                    <ScrollViewer VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Disabled">
                        <ItemsControl x:Name="CollapsedGroups" ItemsSource="{Binding ToolboxGroups}" Margin="4,4">
                            <ItemsControl.ItemTemplate>
                                <DataTemplate>
                                    <Border Width="44" Height="44" Margin="2"
                                            Style="{StaticResource ToolboxItem}"
                                            MouseEnter="GroupTag_MouseEnter"
                                            MouseLeave="GroupTag_MouseLeave">
                                        <ip:PackIconMaterial Width="20" Height="20"
                                              Kind="{Binding GroupIcon, Converter={StaticResource IconKind}}"
                                              Foreground="{DynamicResource PrimaryTextBrush}"
                                              HorizontalAlignment="Center" VerticalAlignment="Center"
                                              ToolTip="{Binding GroupName}"/>
                                    </Border>
                                </DataTemplate>
                            </ItemsControl.ItemTemplate>
                        </ItemsControl>
                    </ScrollViewer>
                </DockPanel>
            </Grid>
        </Border>

        <!-- Popup: 折叠模式下 Hover 弹出类型下的工具列表 -->
        <Popup x:Name="ToolboxGroupPopup" AllowsTransparency="True"
               PopupAnimation="Slide" Placement="Right"
               PlacementTarget="{Binding ElementName=ToolboxPanel}">
            <Border Width="200" Background="{DynamicResource RegionBrush}"
                    BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1"
                    Margin="4,0,0,0">
                <DockPanel MouseEnter="ToolboxGroupPopup_MouseEnter"
                           MouseLeave="ToolboxGroupPopup_MouseLeave">
                    <TextBlock DockPanel.Dock="Top" x:Name="PopupGroupName" FontSize="13" FontWeight="Bold"
                               Foreground="{DynamicResource PrimaryTextBrush}" Margin="10,8,0,4"/>
                    <Separator Background="{DynamicResource BorderBrush}"/>
                    <ScrollViewer VerticalScrollBarVisibility="Auto" MaxHeight="320">
                        <ItemsControl x:Name="PopupItems" Margin="4,4">
                            <ItemsControl.ItemTemplate>
                                <DataTemplate>
                                    <Border Style="{StaticResource ToolboxItem}"
                                            MouseLeftButtonDown="ToolboxItem_MouseLeftButtonDown"
                                            MouseMove="ToolboxItem_MouseMove">
                                        <StackPanel Orientation="Horizontal">
                                            <ip:PackIconMaterial Width="14" Height="14"
                                                  Kind="{Binding IconGeometry, Converter={StaticResource IconKind}}"
                                                  Foreground="{DynamicResource PrimaryTextBrush}"
                                                  VerticalAlignment="Center"/>
                                            <StackPanel Margin="8,0,0,0">
                                                <TextBlock Text="{Binding DisplayName}" FontSize="12"
                                                           Foreground="{DynamicResource PrimaryTextBrush}"/>
                                                <TextBlock Text="{Binding Description}" FontSize="10"
                                                           Foreground="{DynamicResource SecondaryTextBrush}"
                                                           TextTrimming="CharacterEllipsis"/>
                                            </StackPanel>
                                        </StackPanel>
                                    </Border>
                                </DataTemplate>
                            </ItemsControl.ItemTemplate>
                        </ItemsControl>
                    </ScrollViewer>
                </DockPanel>
            </Border>
        </Popup>

            <!-- 中: 画布 + 滚动条 + 鸟瞰图 -->
            <Grid Grid.Row="1" Grid.Column="1" Background="{DynamicResource SecondaryRegionBrush}" ClipToBounds="True">
                <fe:FlowCanvas x:Name="EditorCanvas"
                               Background="{StaticResource GridBrush}"
                               ClipToBounds="True"
                               IsRunning="{Binding IsRunning}">
                    <!-- 工具箱拖拽预览节点：画布子元素，用 Canvas.Left/Top（画布内容坐标）定位，
                         与落点/节点同一坐标系，随画布缩放平移；不经过 adorner/窗口坐标换算，
                         高 DPI（PerMonitorV2）下不会错位 -->
                    <Border x:Name="DragPreviewNode"
                            Visibility="Collapsed"
                            IsHitTestVisible="False"
                            Panel.ZIndex="100000"
                            Background="{DynamicResource PrimaryBrush}"
                            CornerRadius="6"
                            Padding="10,6,12,6"
                            Width="160" Height="42">
                        <StackPanel Orientation="Horizontal">
                            <ip:PackIconMaterial x:Name="DragPreviewIcon" Width="14" Height="14"
                                  Foreground="White" VerticalAlignment="Center" Margin="0,0,8,0"/>
                            <TextBlock x:Name="DragPreviewText" Foreground="White" FontSize="13"
                                       FontWeight="Medium" VerticalAlignment="Center"/>
                        </StackPanel>
                    </Border>
                </fe:FlowCanvas>
                <ScrollBar x:Name="VScrollBar" Orientation="Vertical"
                           Style="{StaticResource CanvasVScrollBar}"
                           HorizontalAlignment="Right" Width="16"
                           SmallChange="20" LargeChange="200"
                           Scroll="VScrollBar_Scroll"/>
                <ScrollBar x:Name="HScrollBar" Orientation="Horizontal"
                           Style="{StaticResource CanvasHScrollBar}"
                           VerticalAlignment="Bottom" Height="16"
                           SmallChange="20" LargeChange="200"
                           Scroll="HScrollBar_Scroll"/>
                <fe:MinimapControl x:Name="Minimap"
                                   Width="200" Height="140"
                                   HorizontalAlignment="Right"
                                   VerticalAlignment="Bottom"
                                   Margin="0,0,20,20"
                                   Canvas="{Binding ElementName=EditorCanvas}"/>

                <!-- 加载动画（导入流程时显示转圈） -->
                <Border x:Name="LoadingOverlay"
                        Visibility="Collapsed"
                        Background="#66000000"
                        IsHitTestVisible="False"
                        Panel.ZIndex="1000">
                    <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center">
                        <ProgressBar IsIndeterminate="True" Width="120" Height="8"/>
                        <TextBlock Text="{loc:Translate '加载中...'}" HorizontalAlignment="Center" Margin="0,10,0,0"
                                   Foreground="{DynamicResource PrimaryTextBrush}"/>
                    </StackPanel>
                </Border>
            </Grid>

            <!-- 垂直分割线（可拖拽调节左右） -->
            <GridSplitter Grid.Row="1" Grid.Column="2"
                          Width="6" HorizontalAlignment="Stretch" ResizeDirection="Columns"
                          Background="{DynamicResource BorderBrush}"
                          ResizeBehavior="PreviousAndNext"/>

            <!-- 右: 属性面板 -->
            <Grid Grid.Row="1" Grid.Column="3" Background="{DynamicResource BorderBrush}">
                <Grid.RowDefinitions>
                    <!-- 顶部可选插槽：默认折叠，主流程/组合模块不受影响；HALCON 子流程编辑器在此注入显示窗体（位于“节点信息”上面） -->
                    <RowDefinition Height="Auto"/>
                    <RowDefinition Height="*"/>
                </Grid.RowDefinitions>
                <ContentControl x:Name="RightTopSlot" Grid.Row="0" Visibility="Collapsed"/>
                <Grid Grid.Row="1">
                <Grid.RowDefinitions>
                    <RowDefinition Height="Auto"/>
                    <RowDefinition Height="4"/>
                    <RowDefinition Height="Auto"/>
                    <RowDefinition Height="4"/>
                    <RowDefinition Height="*"/>
                </Grid.RowDefinitions>

                <!-- 上: 节点信息（默认内容；平台子流程编辑器可经 ReplaceNodeInfoPanel 整区替换为视觉显示框） -->
                <ContentControl x:Name="NodeInfoSlot" Grid.Row="0"
                                HorizontalContentAlignment="Stretch" VerticalContentAlignment="Stretch">
                <Border Background="{DynamicResource RegionBrush}">
                    <DockPanel>
                        <TextBlock DockPanel.Dock="Top" Text="{loc:Translate '节点信息'}" FontSize="13"
                                   FontWeight="Bold" Foreground="{DynamicResource PrimaryTextBrush}" Margin="10,8,0,4"/>
                        <ScrollViewer VerticalScrollBarVisibility="Auto" MaxHeight="120">
                            <StackPanel Margin="10,2">
                                <TextBlock Text="{loc:Translate '名称'}" FontSize="11" Foreground="{DynamicResource SecondaryTextBrush}" Margin="0,4,0,1"/>
                                <TextBlock Text="{Binding SelectedNode.NodeName}" FontSize="12" Foreground="{DynamicResource PrimaryTextBrush}" TextTrimming="CharacterEllipsis"/>
                                <Grid Margin="0,6,0,0">
                                    <Grid.ColumnDefinitions>
                                        <ColumnDefinition Width="*"/>
                                        <ColumnDefinition Width="*"/>
                                    </Grid.ColumnDefinitions>
                                    <StackPanel Grid.Column="0">
                                        <TextBlock Text="{loc:Translate '类型'}" FontSize="11" Foreground="{DynamicResource SecondaryTextBrush}" Margin="0,0,0,1"/>
                                        <TextBlock Text="{Binding SelectedNode.Category}" FontSize="12" Foreground="{DynamicResource PrimaryTextBrush}"/>
                                    </StackPanel>
                                    <StackPanel Grid.Column="1">
                                        <TextBlock Text="{loc:Translate '状态'}" FontSize="11" Foreground="{DynamicResource SecondaryTextBrush}" Margin="0,0,0,1"/>
                                        <StackPanel Orientation="Horizontal">
                                            <Ellipse Width="8" Height="8" Fill="{Binding SelectedNode.StatusColor}" Margin="0,0,4,0"/>
                                            <TextBlock Text="{Binding SelectedNode.StatusText}" FontSize="12" Foreground="{DynamicResource PrimaryTextBrush}"/>
                                        </StackPanel>
                                    </StackPanel>
                                </Grid>
                                <TextBlock Text="{loc:Translate '耗时'}" FontSize="11" Foreground="{DynamicResource SecondaryTextBrush}" Margin="0,6,0,1"/>
                                <TextBlock Text="{Binding SelectedNode.CostTimeText}" FontSize="12" Foreground="{DynamicResource PrimaryTextBrush}"/>
                            </StackPanel>
                        </ScrollViewer>
                    </DockPanel>
                </Border>
                </ContentControl>

                <!-- 分割线1 -->
                <GridSplitter Grid.Row="1"
                              Height="4" HorizontalAlignment="Stretch" ResizeDirection="Rows"
                              Background="{DynamicResource BorderBrush}"
                              ResizeBehavior="PreviousAndNext"/>

                <!-- 中: 执行历史 -->
                <Border Grid.Row="2" MaxHeight="160"
                        Background="{DynamicResource RegionBrush}">
                    <DockPanel>
                        <TextBlock DockPanel.Dock="Top" Text="{loc:Translate '执行历史'}" FontSize="13"
                                   FontWeight="Bold" Foreground="{DynamicResource PrimaryTextBrush}" Margin="10,6,0,2"/>
                        <ListBox ItemsSource="{Binding SelectedNode.ExecutionHistory}"
                                 SelectedItem="{Binding SelectedNode.SelectedHistoryEntry}"
                                 BorderThickness="0"
                                 Background="{DynamicResource RegionBrush}"
                                 Margin="6,0,6,6"
                                 FontSize="11"
                                 ItemContainerStyle="{StaticResource HistoryListItemStyle}"
                                 MaxHeight="120">
                            <ListBox.ItemTemplate>
                                <DataTemplate>
                                    <StackPanel Orientation="Horizontal" Margin="4,2">
                                        <TextBlock Text="🕐" Foreground="{DynamicResource SecondaryTextBrush}" Margin="0,0,6,0"/>
                                        <TextBlock Text="{Binding TimestampText}" Foreground="{DynamicResource PrimaryTextBrush}" VerticalAlignment="Center"/>
                                    </StackPanel>
                                </DataTemplate>
                            </ListBox.ItemTemplate>
                        </ListBox>
                    </DockPanel>
                </Border>

                <!-- 分割线2 -->
                <GridSplitter Grid.Row="3"
                              Height="4" HorizontalAlignment="Stretch" ResizeDirection="Rows"
                              Background="{DynamicResource BorderBrush}"
                              ResizeBehavior="PreviousAndNext"/>

                <!-- 下: 执行结果表格 -->
                <Border Grid.Row="4"
                        Background="{DynamicResource RegionBrush}">
                    <DockPanel>
                        <DockPanel DockPanel.Dock="Top" Margin="10,6,10,4">
                            <TextBlock Text="{loc:Translate '执行结果'}" FontSize="13" FontWeight="Bold"
                                       Foreground="{DynamicResource PrimaryTextBrush}" VerticalAlignment="Center"/>
                            <TextBlock Text="{loc:Translate '选中单元格按 Ctrl+C 复制'}" FontSize="10"
                                       Foreground="{DynamicResource SecondaryTextBrush}"
                                       VerticalAlignment="Center" Margin="12,0,0,0"/>
                        </DockPanel>
                        <DataGrid Style="{StaticResource DataGrid.Small}" ItemsSource="{Binding SelectedNode.SelectedHistoryEntry.Results}"
                                      AutoGenerateColumns="False"
                                      HeadersVisibility="Column"
                                      IsReadOnly="True"
                                      GridLinesVisibility="Horizontal"
                                      CanUserAddRows="False"
                                      CanUserDeleteRows="False"
                                      CanUserResizeColumns="True"
                                        CanUserSortColumns ="False"
                                      SelectionMode="Single"
                                      SelectionUnit="Cell"
                                      ClipboardCopyMode="ExcludeHeader"
                                      BorderThickness="0"
                                      Background="{DynamicResource RegionBrush}"
                                      RowBackground="{DynamicResource RegionBrush}"
                                      AlternatingRowBackground="{DynamicResource SecondaryRegionBrush}"
                                      ColumnHeaderHeight="26"
                                      RowHeight="26"
                                      FontSize="12"
                                      Margin="6,0,6,4">
                                <DataGrid.Columns>
                                    <DataGridTextColumn Header="{loc:Translate '键'}" Binding="{Binding Key}" Width="*"/>
                                    <DataGridTemplateColumn Header="{loc:Translate '值'}" Width="3*">
                                        <DataGridTemplateColumn.CellTemplate>
                                            <DataTemplate>
                                                <Grid>
                                                    <TextBlock x:Name="SimpleValue" Text="{Binding DisplayValue}" VerticalAlignment="Center"/>
                                                    <ItemsControl x:Name="ComplexValue" ItemsSource="{Binding SubItems}" Visibility="Collapsed">
                                                        <ItemsControl.ItemTemplate>
                                                            <DataTemplate>
                                                                <StackPanel Orientation="Horizontal" Margin="2,1">
                                                                    <TextBlock Text="{Binding Key}" FontWeight="SemiBold" FontSize="11" Foreground="{DynamicResource SecondaryTextBrush}"/>
                                                                    <TextBlock Text=": " FontSize="11" Foreground="{DynamicResource SecondaryTextBrush}"/>
                                                                    <TextBlock Text="{Binding DisplayValue}" FontSize="11" Foreground="{DynamicResource PrimaryTextBrush}"/>
                                                                </StackPanel>
                                                            </DataTemplate>
                                                        </ItemsControl.ItemTemplate>
                                                    </ItemsControl>
                                                </Grid>
                                                <DataTemplate.Triggers>
                                                    <DataTrigger Binding="{Binding IsComplex}" Value="True">
                                                        <Setter TargetName="SimpleValue" Property="Visibility" Value="Collapsed"/>
                                                        <Setter TargetName="ComplexValue" Property="Visibility" Value="Visible"/>
                                                    </DataTrigger>
                                                </DataTemplate.Triggers>
                                            </DataTemplate>
                                        </DataGridTemplateColumn.CellTemplate>
                                    </DataGridTemplateColumn>
                                    <DataGridTextColumn Header="{loc:Translate '类型'}" Binding="{Binding TypeName}" Width="*"/>
                                </DataGrid.Columns>
                            </DataGrid>
                        </DockPanel>
                    </Border>
                </Grid>
            </Grid>
    </Grid>
</UserControl>