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<reactive:ReactiveUserControl xmlns="https://github.com/avaloniaui"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
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xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
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xmlns:vm="using:AuroraDesk.Presentation.ViewModels.Pages"
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xmlns:reactive="using:ReactiveUI.Avalonia"
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xmlns:heroicons="clr-namespace:HeroIconsAvalonia.Controls;assembly=HeroIconsAvalonia"
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xmlns:converters="using:AuroraDesk.Presentation.Converters"
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mc:Ignorable="d" d:DesignWidth="1200" d:DesignHeight="800"
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x:Class="AuroraDesk.Presentation.Views.Pages.ImageGalleryPageView"
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x:DataType="vm:ImageGalleryPageViewModel">
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<reactive:ReactiveUserControl.Resources>
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<converters:FilePathToImageSourceConverter x:Key="FilePathToImageSourceConverter"/>
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<converters:IsGreaterThanZeroConverter x:Key="IsGreaterThanZeroConverter"/>
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<converters:InvertedBoolConverter x:Key="InvertedBoolConverter"/>
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<converters:IsZeroConverter x:Key="IsZeroConverter"/>
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</reactive:ReactiveUserControl.Resources>
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<Design.DataContext>
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<vm:ImageGalleryPageViewModel />
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</Design.DataContext>
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<Grid>
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<Grid.RowDefinitions>
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<RowDefinition Height="Auto"/>
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<RowDefinition Height="*"/>
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</Grid.RowDefinitions>
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<!-- 顶部工具栏（用户交互层：按照 images.md） -->
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<Border Grid.Row="0"
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Background="{StaticResource BackgroundLight}"
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BorderBrush="{StaticResource BorderLight}"
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BorderThickness="0,0,0,1"
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Padding="20,15">
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<Grid>
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<Grid.ColumnDefinitions>
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<ColumnDefinition Width="*"/>
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<ColumnDefinition Width="Auto"/>
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</Grid.ColumnDefinitions>
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<!-- 标题和状态信息 -->
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<StackPanel Grid.Column="0">
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<TextBlock Text="图片浏览"
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FontSize="24"
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FontWeight="Bold"
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Foreground="{StaticResource TextPrimary}"/>
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<TextBlock Text="{Binding StatusMessage}"
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FontSize="14"
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Foreground="{StaticResource SecondaryGrayDark}"
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Margin="0,5,0,0"/>
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<StackPanel Orientation="Horizontal" Margin="0,8,0,0" Spacing="15">
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<TextBlock Text="{Binding SelectedDirectory}"
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FontSize="12"
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Foreground="{StaticResource TextSecondary}"
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TextTrimming="CharacterEllipsis"
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MaxWidth="600"/>
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<TextBlock Text="{Binding TotalImageCount, StringFormat='共 {0} 张图片'}"
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FontSize="12"
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Foreground="{StaticResource TextSecondary}"
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IsVisible="{Binding TotalImageCount, Converter={StaticResource IsGreaterThanZeroConverter}}"/>
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</StackPanel>
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</StackPanel>
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<!-- 操作按钮（Win11风格） -->
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<Button Grid.Column="1"
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Content="选择目录"
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Command="{Binding SelectDirectoryCommand}"
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HorizontalAlignment="Right"
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Padding="20,10"
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Margin="0,0,0,0">
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<Button.Template>
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<ControlTemplate TargetType="Button">
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<Border Background="{StaticResource PrimaryBlue}"
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BorderBrush="{StaticResource PrimaryBlue}"
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BorderThickness="1"
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CornerRadius="6"
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Padding="{TemplateBinding Padding}">
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<ContentPresenter Content="{TemplateBinding Content}"
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HorizontalAlignment="Center"
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VerticalAlignment="Center"/>
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</Border>
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</ControlTemplate>
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</Button.Template>
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</Button>
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</Grid>
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</Border>
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<!-- 主要内容区域（渲染层：按照 images.md） -->
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<Grid Grid.Row="1">
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<!-- 加载指示器（Win11风格加载动画） -->
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<Border Background="{StaticResource BackgroundLight}"
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IsVisible="{Binding IsLoading}"
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ZIndex="100">
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<StackPanel HorizontalAlignment="Center"
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VerticalAlignment="Center"
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Spacing="20">
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<TextBlock Text="正在加载图片..."
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FontSize="16"
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Foreground="{StaticResource TextPrimary}"
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HorizontalAlignment="Center"/>
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</StackPanel>
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</Border>
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<!-- 图片网格列表（虚拟化显示：按照 images.md） -->
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<!-- UI布局：采用WrapPanel作为ListBox的容器，每项为固定大小卡片 -->
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<!-- 虚拟化机制：启用VirtualizingPanel.IsVirtualizing="True" -->
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<Grid IsVisible="{Binding IsLoading, Converter={StaticResource InvertedBoolConverter}}">
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<!-- 使用 ScrollViewer + ItemsControl 替代 ListBox，更好地控制滚动条 -->
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<ScrollViewer x:Name="MainScrollViewer"
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HorizontalScrollBarVisibility="Disabled"
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VerticalScrollBarVisibility="Auto"
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Background="Transparent">
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<ItemsControl x:Name="ImageItemsControl"
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ItemsSource="{Binding Images}"
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Background="Transparent">
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<ItemsControl.ItemsPanel>
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<ItemsPanelTemplate>
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<!-- 使用WrapPanel实现网格布局（每行约6个项目） -->
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<WrapPanel Orientation="Horizontal"/>
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</ItemsPanelTemplate>
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</ItemsControl.ItemsPanel>
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<ItemsControl.ItemTemplate>
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<DataTemplate>
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<Button Background="Transparent"
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BorderThickness="0"
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Padding="0"
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Command="{Binding $parent[UserControl].DataContext.SelectImageCommand}"
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CommandParameter="{Binding}">
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<Border Background="{StaticResource BackgroundWhite}"
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BorderBrush="{StaticResource BorderLight}"
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BorderThickness="2"
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CornerRadius="8"
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Padding="8"
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Width="200"
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Height="260">
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<Border.Effect>
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<DropShadowEffect Color="{StaticResource ShadowBlack}"
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Opacity="0.15"
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BlurRadius="8"
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OffsetX="0"
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OffsetY="2"/>
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</Border.Effect>
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<Border.Styles>
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<Style Selector="Border">
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<Setter Property="Background" Value="{StaticResource BackgroundWhite}"/>
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<Setter Property="BorderBrush" Value="{StaticResource BorderLight}"/>
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</Style>
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<Style Selector="Border:pointerover">
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<Setter Property="Background" Value="{StaticResource BackgroundLightHover}"/>
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<Setter Property="BorderBrush" Value="{StaticResource PrimaryBlue}"/>
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<Setter Property="BorderThickness" Value="2"/>
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</Style>
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</Border.Styles>
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<StackPanel Spacing="8">
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<!-- 图片预览（缩略图异步加载） -->
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<Border Background="{StaticResource BackgroundDark}"
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BorderBrush="{StaticResource BorderMedium}"
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BorderThickness="1"
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CornerRadius="4"
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Width="184"
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Height="184"
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HorizontalAlignment="Center">
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<Grid>
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<Image Stretch="UniformToFill"
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HorizontalAlignment="Center"
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VerticalAlignment="Center"
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MaxWidth="184"
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MaxHeight="184">
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<Image.Source>
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<Binding Path="ThumbnailSource"/>
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</Image.Source>
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</Image>
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<!-- 加载状态指示 -->
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<TextBlock Text="加载中..."
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FontSize="12"
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Foreground="{StaticResource TextSecondary}"
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HorizontalAlignment="Center"
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VerticalAlignment="Center"
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IsVisible="{Binding IsLoadingThumbnail}"/>
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</Grid>
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</Border>
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<!-- 文件信息 -->
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<StackPanel Spacing="4">
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<TextBlock Text="{Binding FileName}"
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FontSize="12"
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FontWeight="SemiBold"
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Foreground="{StaticResource TextPrimary}"
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TextTrimming="CharacterEllipsis"
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TextWrapping="Wrap"
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MaxHeight="36"/>
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<TextBlock Text="{Binding FormattedFileSize}"
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FontSize="11"
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Foreground="{StaticResource TextSecondary}"/>
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<TextBlock Text="{Binding LastModified, StringFormat='{}{0:yyyy-MM-dd HH:mm}'}"
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FontSize="10"
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Foreground="{StaticResource SecondaryGrayDark}"/>
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</StackPanel>
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</StackPanel>
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</Border>
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</Button>
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</DataTemplate>
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</ItemsControl.ItemTemplate>
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</ItemsControl>
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</ScrollViewer>
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<!-- 保留 ListBox 作为备用（如果需要选择功能） -->
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<ListBox x:Name="ImageListBox"
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ItemsSource="{Binding Images}"
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Background="Transparent"
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SelectionMode="Single"
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SelectedItem="{Binding SelectedImage}"
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ScrollViewer.HorizontalScrollBarVisibility="Disabled"
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ScrollViewer.VerticalScrollBarVisibility="Auto"
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IsVisible="False">
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<!-- 隐藏 ListBox，使用上面的 ScrollViewer + ItemsControl -->
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<!-- 关键修复：禁用虚拟化，让滚动条能正确显示总高度 -->
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<!-- 使用自定义虚拟化逻辑（通过ViewModel的窗口更新） -->
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<ListBox.ItemsPanel>
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<ItemsPanelTemplate>
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<!-- 使用WrapPanel实现网格布局（每行约6个项目） -->
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<WrapPanel Orientation="Horizontal"/>
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</ItemsPanelTemplate>
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</ListBox.ItemsPanel>
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<ListBox.Styles>
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<Style Selector="ListBoxItem">
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<Setter Property="Padding" Value="0"/>
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<Setter Property="Margin" Value="10"/>
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<Setter Property="Background" Value="Transparent"/>
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<Setter Property="BorderThickness" Value="0"/>
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</Style>
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</ListBox.Styles>
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<ListBox.ItemTemplate>
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<DataTemplate>
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<Button Background="Transparent"
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BorderThickness="0"
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Padding="0"
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Command="{Binding $parent[UserControl].DataContext.SelectImageCommand}"
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CommandParameter="{Binding}">
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<Border Background="{StaticResource BackgroundWhite}"
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BorderBrush="{StaticResource BorderLight}"
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BorderThickness="2"
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CornerRadius="8"
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Padding="8"
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Width="200"
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Height="260">
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<Border.Effect>
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<DropShadowEffect Color="{StaticResource ShadowBlack}"
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Opacity="0.15"
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BlurRadius="8"
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OffsetX="0"
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OffsetY="2"/>
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</Border.Effect>
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<Border.Styles>
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<Style Selector="Border">
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|
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<Setter Property="Background" Value="{StaticResource BackgroundWhite}"/>
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<Setter Property="BorderBrush" Value="{StaticResource BorderLight}"/>
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</Style>
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|
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<Style Selector="Border:pointerover">
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|
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<Setter Property="Background" Value="{StaticResource BackgroundLightHover}"/>
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|
<Setter Property="BorderBrush" Value="{StaticResource PrimaryBlue}"/>
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|
<Setter Property="BorderThickness" Value="2"/>
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</Style>
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</Border.Styles>
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|
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|
|
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|
|
<StackPanel Spacing="8">
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|
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|
|
<!-- 图片预览（缩略图异步加载） -->
|
|
|
|
|
<!-- 按照 images.md：懒加载动画，未加载项显示占位符 -->
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|
|
<Border Background="{StaticResource BackgroundDark}"
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|
|
BorderBrush="{StaticResource BorderMedium}"
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|
|
BorderThickness="1"
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|
|
CornerRadius="4"
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|
|
|
|
Width="184"
|
|
|
|
|
Height="184"
|
|
|
|
|
HorizontalAlignment="Center">
|
|
|
|
|
<Grid>
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|
|
|
|
<Image Stretch="UniformToFill"
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|
|
HorizontalAlignment="Center"
|
|
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|
|
VerticalAlignment="Center"
|
|
|
|
|
MaxWidth="184"
|
|
|
|
|
MaxHeight="184">
|
|
|
|
|
<Image.Source>
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|
|
<Binding Path="ThumbnailSource"/>
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|
|
|
|
</Image.Source>
|
|
|
|
|
</Image>
|
|
|
|
|
<!-- 加载状态指示（懒加载动画） -->
|
|
|
|
|
<TextBlock Text="加载中..."
|
|
|
|
|
FontSize="12"
|
|
|
|
|
Foreground="{StaticResource TextSecondary}"
|
|
|
|
|
HorizontalAlignment="Center"
|
|
|
|
|
VerticalAlignment="Center"
|
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|
|
IsVisible="{Binding IsLoadingThumbnail}"/>
|
|
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|
|
</Grid>
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|
|
</Border>
|
|
|
|
|
|
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|
|
<!-- 文件信息 -->
|
|
|
|
|
<StackPanel Spacing="4">
|
|
|
|
|
<TextBlock Text="{Binding FileName}"
|
|
|
|
|
FontSize="12"
|
|
|
|
|
FontWeight="SemiBold"
|
|
|
|
|
Foreground="{StaticResource TextPrimary}"
|
|
|
|
|
TextTrimming="CharacterEllipsis"
|
|
|
|
|
TextWrapping="Wrap"
|
|
|
|
|
MaxHeight="36"/>
|
|
|
|
|
<TextBlock Text="{Binding FormattedFileSize}"
|
|
|
|
|
FontSize="11"
|
|
|
|
|
Foreground="{StaticResource TextSecondary}"/>
|
|
|
|
|
<TextBlock Text="{Binding LastModified, StringFormat='{}{0:yyyy-MM-dd HH:mm}'}"
|
|
|
|
|
FontSize="10"
|
|
|
|
|
Foreground="{StaticResource SecondaryGrayDark}"/>
|
|
|
|
|
</StackPanel>
|
|
|
|
|
</StackPanel>
|
|
|
|
|
</Border>
|
|
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|
|
</Button>
|
|
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|
|
</DataTemplate>
|
|
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|
|
</ListBox.ItemTemplate>
|
|
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</ListBox>
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</Grid>
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<!-- 空状态提示 -->
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<StackPanel HorizontalAlignment="Center"
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VerticalAlignment="Center"
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Spacing="15"
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IsVisible="{Binding TotalImageCount, Converter={StaticResource IsZeroConverter}}">
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<heroicons:HeroIcon Type="Photo"
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Width="64"
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Height="64"
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Foreground="{StaticResource SecondaryGrayDark}"
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HorizontalAlignment="Center"/>
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<TextBlock Text="请选择一个包含图片的目录"
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FontSize="16"
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Foreground="{StaticResource TextSecondary}"
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HorizontalAlignment="Center"/>
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<Button Content="选择目录"
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Command="{Binding SelectDirectoryCommand}"
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HorizontalAlignment="Center"
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Padding="20,10"/>
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</StackPanel>
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</Grid>
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</Grid>
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</reactive:ReactiveUserControl>
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