fix: 扫描时界面会因为文件名不同而抖动的问题

AGENTS.md

@@ -1,5 +1,10 @@
 # AGENTS.md
 
+## AI 行为准则
+
+- **称呼规范**：始终称呼用户为「思谦」或「王思谦」。
+- **信息缺失处理**：遇到任何不确定、拿不准或信息缺失的情况，不要自行推测。先收集整理好问题，停下来向思谦确认后再继续。
+
 ## Build & Test
 
 ```bash
@@ -26,23 +31,14 @@ dotnet run --project src/GUI                            # Launch the Avalonia de
 
 ## Known Issues / Gotchas
 
-
 - 扫描时如果报错，报错信息可能会填满整个窗口，导致Overlay无法关闭。
 - 读取时如果报错，没有任何警告，会静默报错。需要有一个界面右下方的toast，或是发送系统通知告知用户遇到了错误。
-- 扫描界面的宽度会因为文件名而发生变化。固定为窗口宽度的50%。如果文件名超过这个宽度则省略中间的字符，仅保留开头以及最后10个字符。
 - **升级 Avalonia 版本时，必须同步更新所有次级包引用。** 仅修改主包 `Avalonia` 的 Version 不会自动更新 `Avalonia.Desktop`、`Avalonia.Themes.Fluent`、`Avalonia.Fonts.Inter` 等次级包。必须手动逐个修改，然后执行 `dotnet clean && dotnet restore`。否则运行时的原生库（如 `libAvaloniaNative.dylib`）会混用新旧版本，导致 macOS 上的 `StorageProvider` 文件/文件夹选择对话框在回调时 SIGSEGV 崩溃。
   - 相关 Avalonia issues: [#21102](https://github.com/AvaloniaUI/Avalonia/issues/21102), [#21150](https://github.com/AvaloniaUI/Avalonia/issues/21150), [#21313](https://github.com/AvaloniaUI/Avalonia/issues/21313)，修复 PR: [#21104](https://github.com/AvaloniaUI/Avalonia/pull/21104)。
 - **Tests create temp files/directories** under `Path.GetTempPath()` and clean them up via `IDisposable`. Don't rely on a real audio directory for tests.
 - **`AudioMetadataReader` tests** use real WAV files from `data/source/` (not in git). When files are absent, tests silently return early (`if (wavFiles.Length == 0) return;`) — they pass without actually running assertions, not `Skip.If`. Running `dotnet test` will report 12 passes regardless of whether the fixture files exist.
 - **`.atl.txt` fixture files** are generated by `AtlFieldExtractor`. If the WAV files or the ATL library version change, re-run the extractor to regenerate them before running metadata tests.
-
+- 需要一个UI设计。现在的界面属实有点丑陋了。
-## Data / Test Fixtures
-
-- **`data/source/`** 包含有版权保护的 WAV 音频文件，**不会提交到 git**。按厂商分子目录：`Boom/`、`Wow Sound/`、`The Odessy/`、`Sound Idea/`。
-  - 每个 WAV 旁有对应的 `.atl.txt` 文件（由 `AtlFieldExtractor` 生成），记录了 ATL 库解析出的完整元数据，供测试断言参考。
-  - Boom 目录下的文件元数据最丰富（标准标签 + iXML 自定义字段 + BWF bext 字段 + 嵌入封面）；Sound Idea 目录下的文件元数据最少（仅基础技术参数，无任何附加字段）。
-- **`AudioMetadataReader` 测试**使用 `data/source/Boom/` 和 `Sound Idea/` 中的 WAV 文件。文件不在 git 仓库中，测试通过 `if (wavFiles.Length == 0) return;` 静默返回（测试仍然 pass，但未执行实际断言）。
-- **路径解析**：测试运行时从 `bin/Debug/net10.0/` 启动，需向上回溯 6 级到达仓库根目录，再拼接 `data/source/`。
 
 ## Conventions
 

src/GUI/Converters/ValueConverters.cs

@@ -100,6 +100,43 @@ public class InverseBoolConverter : IValueConverter
     }
 }
 
+public class HalfDoubleConverter : IValueConverter
+{
+    public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
+    {
+        if (value is double d && !double.IsNaN(d) && !double.IsInfinity(d))
+            return d / 2.0;
+        return 400.0;
+    }
+
+    public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
+        => throw new NotSupportedException();
+}
+
+public class MiddleTruncateConverter : IValueConverter
+{
+    private const int KeepTail = 10;
+
+    public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
+    {
+        if (value is not string text || string.IsNullOrEmpty(text)) return value;
+
+        int maxLength = 60;
+        if (parameter != null && int.TryParse(parameter.ToString(), NumberStyles.Integer, CultureInfo.InvariantCulture, out int parsed))
+            maxLength = parsed;
+
+        if (text.Length <= maxLength) return text;
+
+        int head = maxLength - KeepTail - 3;
+        if (head <= 0) return text[..maxLength];
+
+        return string.Concat(text.AsSpan(0, head), "...", text.AsSpan(text.Length - KeepTail, KeepTail));
+    }
+
+    public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
+        => throw new NotSupportedException();
+}
+
 public static class ValueConverters
 {
     public static readonly IValueConverter DurationFormat = new DurationFormatConverter();
@@ -109,4 +146,6 @@ public static class ValueConverters
     public static readonly IValueConverter DurationToSliderMax = new DurationToSliderMaxConverter();
     public static readonly IValueConverter PositionFormat = new PositionFormatConverter();
     public static readonly IValueConverter InverseBool = new InverseBoolConverter();
+    public static readonly IValueConverter HalfDouble = new HalfDoubleConverter();
+    public static readonly IValueConverter MiddleTruncate = new MiddleTruncateConverter();
 }

src/GUI/Views/MainWindow.axaml

@@ -16,15 +16,15 @@
     <Design.DataContext>
         <vm:MainWindowViewModel/>
     </Design.DataContext>
-
+    
     <Grid RowDefinitions="Auto,*,Auto">
 
         <!-- 工具栏 -->
         <Border Grid.Row="0" Padding="6,4" BorderBrush="{DynamicResource SystemBaseLowColorBrush}"
                 BorderThickness="0,0,0,1" Background="{DynamicResource SystemAltMediumColorBrush}">
             <StackPanel Orientation="Horizontal" Spacing="4">
-                <Button Content="📁 扫描目录" x:Name="ScanButton" Height="28" Padding="8,0"/>
+                <Button Content="扫描目录" x:Name="ScanButton" Height="28" Padding="8,0"/>
-                <Button Content="⚙ 偏好设置" Height="28" Padding="8,0" IsEnabled="False"/>
+                <Button Content="偏好设置" Height="28" Padding="8,0" IsEnabled="False"/>
             </StackPanel>
         </Border>
 

src/GUI/Views/ScanProgressView.axaml

@@ -1,6 +1,7 @@
 <UserControl xmlns="https://github.com/avaloniaui"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:vm="using:GUI.ViewModels"
+             xmlns:converters="using:GUI.Converters"
              xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              mc:Ignorable="d"
@@ -10,8 +11,13 @@
         <vm:ScanProgressViewModel/>
     </Design.DataContext>
 
+    <UserControl.Resources>
+        <converters:HalfDoubleConverter x:Key="HalfDouble"/>
+        <converters:MiddleTruncateConverter x:Key="MiddleTruncate"/>
+    </UserControl.Resources>
+
     <Border Padding="16" Background="{DynamicResource SystemBaseLowColorBrush}" CornerRadius="8"
-            MaxWidth="400">
+            Width="{Binding $parent[Window].Width, Converter={StaticResource HalfDouble}}">
         <StackPanel Spacing="8">
             <TextBlock Text="{Binding StatusText}" FontWeight="SemiBold" FontSize="13" TextWrapping="Wrap"/>
             <ProgressBar Minimum="0" Maximum="100" Value="{Binding Progress}" Height="8"/>
@@ -27,8 +33,8 @@
                 <TextBlock Text="{Binding SkippedFiles, StringFormat='跳过: {0}'}" FontSize="11"
                            Foreground="{DynamicResource SystemBaseMediumColorBrush}"/>
             </StackPanel>
-            <TextBlock Text="{Binding CurrentFile}" FontSize="11"
+            <TextBlock Text="{Binding CurrentFile, Converter={StaticResource MiddleTruncate}, ConverterParameter=60}"
-                       TextTrimming="CharacterEllipsis" MaxWidth="368"/>
+                       FontSize="11"/>
             <Button Content="关闭" Command="{Binding DismissCommand}"
                     IsVisible="{Binding HasError}" HorizontalAlignment="Right"/>
         </StackPanel>

src/Resonance.sln.DotSettings.user

@@ -2,6 +2,8 @@
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 	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003AGUI_002EViewModels_002EScanProgressViewModel_002EStartScan_002Eg_002Ecs_002Fl_003A_002E_002E_003F_002E_002E_003F_002E_002E_003F_002E_002E_003FLibrary_003FApplication_0020Support_003FJetBrains_003FRider2026_002E1_003Fresharper_002Dhost_003FSourcesCache_003F1a6f588df342309187674fcc524512a9a4a46540_003FGUI_002EViewModels_002EScanProgressViewModel_002EStartScan_002Eg_002Ecs/@EntryIndexedValue">ForceIncluded</s:String>
+	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003AGUI_002EViewModels_002EScanProgressViewModel_002EStartScan_002Eg_002Ecs_002Fl_003A_002E_002E_003F_002E_002E_003F_002E_002E_003F_002E_002E_003F_002E_002E_003F_002E_002E_003Fvar_003Ffolders_003F5b_003F4wt_005Fpwy11fz5nkdv7s47r3780000gn_003FT_003FSourceGeneratedDocuments_003F8E641B210524A46B7DCD4502_003FCommunityToolkit_002EMvvm_002ESourceGenerators_003FCommunityToolkit_002EMvvm_002ESourceGenerators_002ERelayCommandGenerator_003FGUI_002EViewModels_002EScanProgressViewModel_002EStartScan_002Eg_002Ecs_002Fz_003A2_002D1/@EntryIndexedValue">ForceIncluded</s:String>
+	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003AGUI_002EViewModels_002EScanProgressViewModel_002EStartScan_002Eg_002Ecs_002Fl_003A_002E_002E_003F_002E_002E_003F_002E_002E_003F_002E_002E_003FLibrary_003FApplication_0020Support_003FJetBrains_003FRider2026_002E1_003Fresharper_002Dhost_003FSourcesCache_003F1a6f588df342309187674fcc524512a9a4a46540_003FGUI_002EViewModels_002EScanProgressViewModel_002EStartScan_002Eg_002Ecs_002Fz_003A2_002D0/@EntryIndexedValue">ForceIncluded</s:String>
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