0.4.9.3

内存泄露问题解决
2026-06-20 23:54:26 +08:00 · 2026-03-07 22:05:18 +08:00
parent 49b18d6af1
commit 435b96c50c
11 changed files with 418 additions and 185 deletions
--- a/LanMountainDesktop/Views/Components/BrowserWidget.axaml.cs
+++ b/LanMountainDesktop/Views/Components/BrowserWidget.axaml.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Input;
@@ -12,7 +12,7 @@ using WebViewCore.Events;
 namespace LanMountainDesktop.Views.Components;

 public partial class BrowserWidget : UserControl, IDesktopComponentWidget
-    , IDesktopPageVisibilityAwareComponentWidget
+    , IDesktopPageVisibilityAwareComponentWidget, IDisposable
 {
    private static readonly Uri DefaultHomeUri = new("https://www.bing.com");
    private double _currentCellSize = 48;
@@ -22,6 +22,7 @@ public partial class BrowserWidget : UserControl, IDesktopComponentWidget
    private bool _isEditMode;
    private bool _isWebViewActive = true;
    private readonly WebView2RuntimeAvailability _runtimeAvailability;
+    private bool _isDisposed;

    public BrowserWidget()
    {
@@ -48,6 +49,26 @@ public partial class BrowserWidget : UserControl, IDesktopComponentWidget
        NavigateTo(DefaultHomeUri);
    }

+    public void Dispose()
+    {
+        if (_isDisposed)
+        {
+            return;
+        }
+
+        _isDisposed = true;
+
+        SizeChanged -= OnSizeChanged;
+        ActualThemeVariantChanged -= OnActualThemeVariantChanged;
+        AttachedToVisualTree -= OnAttachedToVisualTree;
+        DetachedFromVisualTree -= OnDetachedFromVisualTree;
+
+        if (_runtimeAvailability.IsAvailable)
+        {
+            BrowserWebView.NavigationStarting -= OnBrowserWebViewNavigationStarting;
+        }
+    }
+
    public void ApplyCellSize(double cellSize)
    {
        _currentCellSize = Math.Max(1, cellSize);
--- a/LanMountainDesktop/Views/Components/DailyPoetryWidget.axaml
+++ b/LanMountainDesktop/Views/Components/DailyPoetryWidget.axaml
@@ -1,4 +1,4 @@
-<UserControl xmlns="https://github.com/avaloniaui"
+<UserControl xmlns="https://github.com/avaloniaui"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
@@ -14,9 +14,9 @@
            BorderThickness="0"
            Background="#C20A0A"
            Padding="20,16,20,14">
-        <Grid RowDefinitions="Auto,*,Auto">
+        <Grid RowDefinitions="*,Auto">
            <Canvas x:Name="DayDecorationCanvas"
-                    Grid.RowSpan="3"
+                    Grid.RowSpan="2"
                    IsVisible="False"
                    Width="212"
                    Height="148"
@@ -43,34 +43,32 @@
                             Data="M8,54 L38,24 L64,52 L8,54 Z" />
            </Canvas>

-            <TextBlock x:Name="QuoteMarkTextBlock"
-                       Text="&#8220;"
-                       Foreground="#5CFAD0B7"
-                       FontSize="96"
-                       FontWeight="SemiBold"
-                       HorizontalAlignment="Left"
-                       VerticalAlignment="Top"
-                       Margin="1,0,0,0"
-                       LineHeight="86" />
+            <Grid Grid.Row="0" RowDefinitions="Auto,*">
+                <TextBlock x:Name="QuoteMarkTextBlock"
+                           Text="&#8220;"
+                           Foreground="#5CFAD0B7"
+                           FontSize="72"
+                           FontWeight="SemiBold"
+                           HorizontalAlignment="Left"
+                           VerticalAlignment="Top"
+                           Margin="1,0,0,0"
+                           LineHeight="65" />

-            <TextBlock x:Name="PoetryContentTextBlock"
-                       Grid.Row="1"
-                       Text="芳草年年惹恨幽。想前事悠悠。"
-                       Foreground="#F8D8A8"
-                       FontSize="54"
-                       FontWeight="Medium"
-                       LineHeight="60"
-                       TextWrapping="Wrap"
-                       VerticalAlignment="Top"
-                       Margin="8,2,0,0" />
+                <TextBlock x:Name="PoetryContentTextBlock"
+                           Grid.Row="1"
+                           Text="芳草年年惹恨幽。想前事悠悠。"
+                           Foreground="#F8D8A8"
+                           FontSize="54"
+                           FontWeight="Medium"
+                           LineHeight="60"
+                           TextWrapping="Wrap"
+                           MaxLines="2"
+                           VerticalAlignment="Top"
+                           HorizontalAlignment="Left"
+                           Margin="8,2,0,0" />
+            </Grid>

-            <Grid x:Name="AuthorPanel"
-                  Grid.Row="2"
-                  ColumnDefinitions="Auto,*"
-                  HorizontalAlignment="Right"
-                  VerticalAlignment="Bottom"
-                  Margin="0,6,4,0"
-                  IsHitTestVisible="False">
+            <Grid Grid.Row="1" ColumnDefinitions="Auto,*" VerticalAlignment="Bottom" Margin="0,6,0,0">
                <Border x:Name="AuthorAccent"
                        Grid.Column="0"
                        Width="6"
@@ -92,6 +90,7 @@
            </Grid>

            <TextBlock x:Name="StatusTextBlock"
+                       Grid.Row="0"
                       Text="Loading..."
                       IsVisible="False"
                       Foreground="#D9FFFFFF"
@@ -100,10 +99,10 @@
                       VerticalAlignment="Top" />

            <Button x:Name="RefreshButton"
-                    Grid.RowSpan="3"
+                    Grid.Row="1"
                    HorizontalAlignment="Right"
-                    VerticalAlignment="Top"
-                    Margin="0,12,16,0"
+                    VerticalAlignment="Bottom"
+                    Margin="0,8,4,0"
                    Width="42"
                    Height="42"
                    CornerRadius="21"
@@ -113,13 +112,12 @@
                    Padding="0"
                    Focusable="False">
                <TextBlock x:Name="RefreshGlyphTextBlock"
-                           HorizontalAlignment="Center"
-                           VerticalAlignment="Center"
-                           Text="&#8635;"
+                           Text="&#xE72C;"
+                           FontFamily="{StaticResource SymbolFontFamily}"
+                           FontSize="22"
                           Foreground="#8C9097"
-                           FontSize="26"
-                           FontWeight="SemiLight"
-                           LineHeight="26" />
+                           HorizontalAlignment="Center"
+                           VerticalAlignment="Center" />
            </Button>
        </Grid>
    </Border>
--- a/LanMountainDesktop/Views/Components/DailyPoetryWidget.axaml.cs
+++ b/LanMountainDesktop/Views/Components/DailyPoetryWidget.axaml.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -45,8 +45,8 @@ public partial class DailyPoetryWidget : UserControl, IDesktopComponentWidget, I
    private const double BaseCellSize = 48d;
    private const int BaseWidthCells = 4;
    private const int BaseHeightCells = 2;
-    private const double MinPoetryFontSize = 12;
-    private const double MinAuthorFontSize = 10.5;
+    private const double MinPoetryFontSize = 8;
+    private const double MinAuthorFontSize = 7;

    private readonly record struct TextFitResult(double FontSize, FontWeight FontWeight, double LineHeight);

@@ -109,7 +109,6 @@ public partial class DailyPoetryWidget : UserControl, IDesktopComponentWidget, I
            0,
            0);

-        AuthorPanel.Margin = new Thickness(0, Math.Clamp(5 * scale, 2, 10), Math.Clamp(4 * scale, 2, 8), 0);
        AuthorAccent.Width = Math.Clamp(6 * scale, 3.2, 9.5);
        AuthorAccent.Height = Math.Clamp(24 * scale, 12, 34);
        AuthorAccent.Margin = new Thickness(0, 0, Math.Clamp(8 * scale, 4, 13), 0);
@@ -351,11 +350,6 @@ public partial class DailyPoetryWidget : UserControl, IDesktopComponentWidget, I

            AuthorTextBlock.Foreground = CreateBrush("#F4D7A7");
            AuthorAccent.Background = CreateBrush("#63F2AF90");
-            AuthorPanel.Margin = new Thickness(
-                0,
-                Math.Clamp(6 * scale, 2, 10),
-                Math.Clamp(6 * scale, 2, 10),
-                Math.Clamp(1 * scale, 0, 3));

            DayDecorationCanvas.IsVisible = false;
            RefreshButton.IsVisible = true;
@@ -380,11 +374,6 @@ public partial class DailyPoetryWidget : UserControl, IDesktopComponentWidget, I

            AuthorTextBlock.Foreground = CreateBrush("#272D38");
            AuthorAccent.Background = CreateBrush("#C8090D");
-            AuthorPanel.Margin = new Thickness(
-                0,
-                Math.Clamp(6 * scale, 2, 10),
-                Math.Clamp(6 * scale, 2, 10),
-                Math.Clamp(2 * scale, 0, 4));

            DayDecorationCanvas.IsVisible = true;
            RefreshButton.IsVisible = true;
@@ -475,83 +464,19 @@ public partial class DailyPoetryWidget : UserControl, IDesktopComponentWidget, I
        DayDecorationCanvas.IsVisible = showDayDecorations;
        RefreshButton.IsVisible = true;

-        var refreshReservedWidth = RefreshButton.Width + Math.Clamp(8 * scale, 5, 14);
-        var decorationReservedWidth = showDayDecorations
-            ? Math.Clamp(innerWidth * 0.24, 34, 96)
-            : 0;
-        var quoteReservedWidth = QuoteMarkTextBlock.IsVisible
-            ? Math.Clamp(10 * scale, 5, 16)
-            : 0;
-        var poemReservedRight = Math.Max(refreshReservedWidth, decorationReservedWidth);
-        var poemWidth = innerWidth - poemReservedRight - quoteReservedWidth;
-        var poemMinWidth = Math.Max(66, innerWidth * 0.56);
-        if (poemWidth < poemMinWidth)
-        {
-            poemWidth = poemMinWidth;
-        }
-        poemWidth = Math.Min(Math.Max(64, poemWidth), innerWidth);
+        var refreshButtonWidth = 42 + Math.Clamp(8 * scale, 5, 14);
+        var quoteMarkWidth = QuoteMarkTextBlock.IsVisible ? Math.Clamp(10 * scale, 5, 16) : 0;
+        
+        var poemWidth = innerWidth - quoteMarkWidth - Math.Clamp(12 * scale, 6, 20);
+        poemWidth = Math.Min(Math.Max(64, poemWidth), innerWidth - Math.Clamp(16 * scale, 8, 24));

-        var authorMaxLines = innerWidth < Math.Max(_currentCellSize * 5.2, 252) ? 2 : 1;
-        var authorUnitsTarget = authorMaxLines == 1 ? 20 : 12;
-        var authorWidth = Math.Max(72, Math.Min(innerWidth * (isNightMode ? 0.5 : 0.56), innerWidth - 8));
-        var authorPrepared = PrepareAuthorText(_authorRawText, authorUnitsTarget, authorMaxLines);
-        var authorPreferredFontSize = Math.Clamp((isNightMode ? 25 : 23) * scale, 12, 34);
-        var authorMinFontSize = Math.Clamp(authorPreferredFontSize * 0.72, MinAuthorFontSize, authorPreferredFontSize);
-        var authorMinWeight = isNightMode ? 500 : 470;
-        var authorMaxWeight = isNightMode ? 650 : 600;
-        authorPrepared = EnsureTextFitsAtMinSize(
-            preparedText: authorPrepared,
-            sourceText: _authorRawText,
-            targetUnits: authorUnitsTarget,
-            maxLines: authorMaxLines,
-            maxWidth: authorWidth,
-            maxHeight: Math.Max(20, innerHeight * (authorMaxLines > 1 ? 0.38 : 0.28)),
-            minFontSize: authorMinFontSize,
-            minFontWeight: ToVariableWeight(authorMinWeight),
-            lineHeightFactor: 1.12);
-
-        var authorFit = FitTextStable(
-            authorPrepared,
-            authorWidth,
-            Math.Max(20, innerHeight * (authorMaxLines > 1 ? 0.38 : 0.28)),
-            minFontSize: authorMinFontSize,
-            maxFontSize: Math.Clamp(authorPreferredFontSize * 1.15, authorMinFontSize, 42),
-            maxLines: authorMaxLines,
-            lineHeightFactor: 1.12,
-            minWeight: authorMinWeight,
-            maxWeight: authorMaxWeight);
-
-        AuthorTextBlock.Text = authorPrepared;
-        AuthorTextBlock.TextWrapping = authorMaxLines > 1 ? TextWrapping.Wrap : TextWrapping.NoWrap;
-        AuthorTextBlock.MaxLines = authorMaxLines;
-        AuthorTextBlock.MaxWidth = authorWidth;
-        AuthorTextBlock.FontSize = authorFit.FontSize;
-        AuthorTextBlock.LineHeight = authorFit.LineHeight;
-        AuthorTextBlock.FontWeight = authorFit.FontWeight;
-        AuthorPanel.MaxWidth = authorWidth + AuthorAccent.Width + AuthorAccent.Margin.Right + Math.Clamp(4 * scale, 2, 8);
-
-        var authorMeasured = MeasureTextSize(
-            authorPrepared,
-            authorFit.FontSize,
-            authorFit.FontWeight,
-            authorWidth,
-            authorFit.LineHeight);
-        var authorHeight = Math.Min(authorMeasured.Height, authorFit.LineHeight * authorMaxLines);
-        var authorBlockHeight = Math.Max(authorHeight, AuthorAccent.Height) +
-                                AuthorPanel.Margin.Top +
-                                AuthorPanel.Margin.Bottom +
-                                Math.Clamp(4 * scale, 2, 8);
-
-        var poemMaxLines = innerHeight < _currentCellSize * 1.58
-            ? 4
-            : innerHeight < _currentCellSize * 2.05
-                ? 3
-                : 2;
+        var poemMaxLines = 2;
        var poemUnitsTarget = EstimateTargetUnitsPerLine(poemWidth, scale, isNightMode);
        var poemPrepared = PreparePoetryText(_poetryRawText, poemUnitsTarget, poemMaxLines);
-        var poemHeight = Math.Max(30, innerHeight - authorBlockHeight);
-        var poemPreferredFontSize = Math.Clamp((isNightMode ? 34 : 32) * scale, 16, 56);
-        var poemMinFontSize = Math.Clamp(poemPreferredFontSize * 0.72, MinPoetryFontSize, poemPreferredFontSize);
+        
+        var availablePoemHeight = innerHeight * 0.72;
+        var poemPreferredFontSize = Math.Clamp((isNightMode ? 34 : 32) * scale, 14, 56);
+        var poemMinFontSize = Math.Clamp(poemPreferredFontSize * 0.65, MinPoetryFontSize, poemPreferredFontSize);
        var poemMinWeight = isNightMode ? 540 : 500;
        var poemMaxWeight = isNightMode ? 760 : 680;
        poemPrepared = EnsureTextFitsAtMinSize(
@@ -560,19 +485,19 @@ public partial class DailyPoetryWidget : UserControl, IDesktopComponentWidget, I
            targetUnits: poemUnitsTarget,
            maxLines: poemMaxLines,
            maxWidth: poemWidth,
-            maxHeight: poemHeight,
+            maxHeight: availablePoemHeight,
            minFontSize: poemMinFontSize,
            minFontWeight: ToVariableWeight(poemMinWeight),
-            lineHeightFactor: 1.1);
+            lineHeightFactor: 1.12);

        var poemFit = FitTextStable(
            poemPrepared,
            poemWidth,
-            poemHeight,
+            availablePoemHeight,
            minFontSize: poemMinFontSize,
            maxFontSize: Math.Clamp(poemPreferredFontSize * 1.20, poemMinFontSize, 62),
            maxLines: poemMaxLines,
-            lineHeightFactor: 1.10,
+            lineHeightFactor: 1.12,
            minWeight: poemMinWeight,
            maxWeight: poemMaxWeight);

@@ -582,6 +507,43 @@ public partial class DailyPoetryWidget : UserControl, IDesktopComponentWidget, I
        PoetryContentTextBlock.FontSize = poemFit.FontSize;
        PoetryContentTextBlock.LineHeight = poemFit.LineHeight;
        PoetryContentTextBlock.FontWeight = poemFit.FontWeight;
+
+        var authorWidth = Math.Max(72, Math.Min(innerWidth * (isNightMode ? 0.5 : 0.56), innerWidth - 8));
+        var authorUnitsTarget = 20;
+        var authorPrepared = PrepareAuthorText(_authorRawText, authorUnitsTarget, 1);
+        var authorPreferredFontSize = Math.Clamp((isNightMode ? 25 : 23) * scale, 10, 34);
+        var authorMinFontSize = Math.Clamp(authorPreferredFontSize * 0.65, MinAuthorFontSize, authorPreferredFontSize);
+        var authorMinWeight = isNightMode ? 500 : 470;
+        var authorMaxWeight = isNightMode ? 650 : 600;
+        authorPrepared = EnsureTextFitsAtMinSize(
+            preparedText: authorPrepared,
+            sourceText: _authorRawText,
+            targetUnits: authorUnitsTarget,
+            maxLines: 1,
+            maxWidth: authorWidth,
+            maxHeight: AuthorAccent.Height,
+            minFontSize: authorMinFontSize,
+            minFontWeight: ToVariableWeight(authorMinWeight),
+            lineHeightFactor: 1.12);
+
+        var authorFit = FitTextStable(
+            authorPrepared,
+            authorWidth,
+            AuthorAccent.Height,
+            minFontSize: authorMinFontSize,
+            maxFontSize: Math.Clamp(authorPreferredFontSize * 1.15, authorMinFontSize, 42),
+            maxLines: 1,
+            lineHeightFactor: 1.12,
+            minWeight: authorMinWeight,
+            maxWeight: authorMaxWeight);
+
+        AuthorTextBlock.Text = authorPrepared;
+        AuthorTextBlock.TextWrapping = TextWrapping.NoWrap;
+        AuthorTextBlock.MaxLines = 1;
+        AuthorTextBlock.MaxWidth = authorWidth;
+        AuthorTextBlock.FontSize = authorFit.FontSize;
+        AuthorTextBlock.LineHeight = authorFit.LineHeight;
+        AuthorTextBlock.FontWeight = authorFit.FontWeight;
    }

    private void UpdateRefreshButtonState()
--- a/LanMountainDesktop/Views/Components/RecordingWidget.axaml.cs
+++ b/LanMountainDesktop/Views/Components/RecordingWidget.axaml.cs
@@ -15,7 +15,7 @@ using LanMountainDesktop.Services;

 namespace LanMountainDesktop.Views.Components;

-public partial class RecordingWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget
+public partial class RecordingWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget, IDisposable
 {
    private const int WaveBarCount = 22;

@@ -38,6 +38,7 @@ public partial class RecordingWidget : UserControl, IDesktopComponentWidget, IDe
    private bool _isOnActivePage = true;
    private bool _pausedStudyMonitoringForRecording;
    private bool _isNightVisual = true;
+    private bool _isDisposed;

    public RecordingWidget()
    {
@@ -612,4 +613,23 @@ public partial class RecordingWidget : UserControl, IDesktopComponentWidget, IDe

        return (false, path.LocalPath);
    }
+
+    public void Dispose()
+    {
+        if (_isDisposed)
+        {
+            return;
+        }
+
+        _isDisposed = true;
+
+        _uiTimer.Stop();
+        _uiTimer.Tick -= OnUiTick;
+        AttachedToVisualTree -= OnAttachedToVisualTree;
+        DetachedFromVisualTree -= OnDetachedFromVisualTree;
+        SizeChanged -= OnSizeChanged;
+        ActualThemeVariantChanged -= OnActualThemeVariantChanged;
+
+        _audioRecorderService.Dispose();
+    }
 }
--- a/LanMountainDesktop/Views/Components/StudyEnvironmentWidget.axaml.cs
+++ b/LanMountainDesktop/Views/Components/StudyEnvironmentWidget.axaml.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Globalization;
 using Avalonia;
 using Avalonia.Controls;
@@ -9,7 +9,7 @@ using LanMountainDesktop.Services;

 namespace LanMountainDesktop.Views.Components;

-public partial class StudyEnvironmentWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget
+public partial class StudyEnvironmentWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget, IDisposable
 {
    private readonly IStudyAnalyticsService _studyAnalyticsService = StudyAnalyticsServiceFactory.CreateDefault();
    private readonly StudyAnalyticsMonitoringLeaseCoordinator _monitoringLeaseCoordinator = StudyAnalyticsMonitoringLeaseCoordinatorFactory.CreateDefault();
@@ -27,6 +27,7 @@ public partial class StudyEnvironmentWidget : UserControl, IDesktopComponentWidg
    private string _languageCode = "zh-CN";
    private bool _isAttached;
    private bool _isOnActivePage = true;
+    private bool _isDisposed;
    private IDisposable? _monitoringLease;

    public StudyEnvironmentWidget()
@@ -329,4 +330,23 @@ public partial class StudyEnvironmentWidget : UserControl, IDesktopComponentWidg

        return CreateBrush(fallbackHex);
    }
+
+    public void Dispose()
+    {
+        if (_isDisposed)
+        {
+            return;
+        }
+
+        _isDisposed = true;
+
+        _uiTimer.Stop();
+        _uiTimer.Tick -= OnUiTimerTick;
+        AttachedToVisualTree -= OnAttachedToVisualTree;
+        DetachedFromVisualTree -= OnDetachedFromVisualTree;
+        SizeChanged -= OnSizeChanged;
+
+        _monitoringLease?.Dispose();
+        _monitoringLease = null;
+    }
 }
--- a/LanMountainDesktop/Views/Components/StudyNoiseDistributionScatterChartControl.cs
+++ b/LanMountainDesktop/Views/Components/StudyNoiseDistributionScatterChartControl.cs
@@ -14,10 +14,10 @@ public sealed class StudyNoiseDistributionScatterChartControl : Control
    private static readonly Pen GridPen = new(GridBrush, 1);
    private static readonly Pen AxisPen = new(AxisBrush, 1.1);

-    private static readonly IBrush QuietPointBrush = new SolidColorBrush(Color.Parse("#FF34D399"));
-    private static readonly IBrush NormalPointBrush = new SolidColorBrush(Color.Parse("#FF60A5FA"));
-    private static readonly IBrush NoisyPointBrush = new SolidColorBrush(Color.Parse("#FFF59E0B"));
-    private static readonly IBrush ExtremePointBrush = new SolidColorBrush(Color.Parse("#FFEF4444"));
+    private static readonly IBrush QuietBrush = new SolidColorBrush(Color.Parse("#FF34D399"));
+    private static readonly IBrush NormalBrush = new SolidColorBrush(Color.Parse("#FF60A5FA"));
+    private static readonly IBrush NoisyBrush = new SolidColorBrush(Color.Parse("#FFF59E0B"));
+    private static readonly IBrush ExtremeBrush = new SolidColorBrush(Color.Parse("#FFEF4444"));

    private IReadOnlyList<NoiseRealtimePoint> _points = Array.Empty<NoiseRealtimePoint>();
    private double _baselineDb = 45;
@@ -47,34 +47,102 @@ public sealed class StudyNoiseDistributionScatterChartControl : Control

        DrawGrid(context, plot);

-        if (_points.Count == 0)
+        if (_points.Count < 2)
        {
            return;
        }

+        DrawElectronCloud(context, plot);
+    }
+
+    private void DrawElectronCloud(DrawingContext context, Rect plot)
+    {
        var start = _points[0].Timestamp;
        var end = _points[^1].Timestamp;
        var totalTicks = Math.Max(1, (end - start).Ticks);

-        var maxRenderPoints = Math.Clamp((int)Math.Floor(plot.Width * 1.5), 80, 520);
-        var step = Math.Max(1, _points.Count / Math.Max(1, maxRenderPoints));
-        var radius = Math.Clamp(Math.Min(plot.Width, plot.Height) / 88d, 1.4, 3.8);
-
-        for (var i = 0; i < _points.Count; i += step)
+        var pointCount = _points.Count;
+        var cloudLayers = 8;
+        var baseRadius = Math.Clamp(Math.Min(plot.Width, plot.Height) / 45d, 3, 12);
+        
+        var sortedPoints = new List<(double X, double Y, NoiseDistributionLevel Level)>();
+        for (var i = 0; i < pointCount; i++)
        {
            var point = _points[i];
-            var level = ResolveLevel(point.DisplayDb, _baselineDb);
            var x = MapX(plot, point.Timestamp, start, totalTicks);
-            var y = MapY(plot, level, point.Timestamp);
-            context.DrawEllipse(GetLevelBrush(level), pen: null, center: new Point(x, y), radiusX: radius, radiusY: radius);
+            var y = MapYContinuous(plot, point.DisplayDb);
+            var level = ResolveLevel(point.DisplayDb, _baselineDb);
+            sortedPoints.Add((x, y, level));
+        }
+
+        sortedPoints.Sort((a, b) => a.X.CompareTo(b.X));
+
+        for (var layer = cloudLayers - 1; layer >= 0; layer--)
+        {
+            var layerRatio = (double)layer / (cloudLayers - 1);
+            var layerRadius = baseRadius * (1.2 + layerRatio * 0.8);
+            var layerAlpha = (byte)(40 + layerRatio * 25);
+
+            foreach (var pt in sortedPoints)
+            {
+                var brush = GetLevelBrushWithAlpha(pt.Level, layerAlpha);
+                var jitterX = ComputeJitter(pt.X * 1000 + layer) * layerRadius * 0.3;
+                var jitterY = ComputeJitter(pt.Y * 1000 + layer) * layerRadius * 0.3;
+                
+                context.DrawEllipse(
+                    brush,
+                    pen: null,
+                    center: new Point(pt.X + jitterX, pt.Y + jitterY),
+                    radiusX: layerRadius,
+                    radiusY: layerRadius * 0.7);
+            }
+        }
+
+        var glowLayers = 5;
+        for (var layer = glowLayers - 1; layer >= 0; layer--)
+        {
+            var layerRatio = (double)layer / (glowLayers - 1);
+            var layerRadius = baseRadius * (0.8 + layerRatio * 0.6);
+            var layerAlpha = (byte)(20 + layerRatio * 15);
+
+            foreach (var pt in sortedPoints)
+            {
+                var brush = GetLevelBrushWithAlpha(pt.Level, layerAlpha);
+                context.DrawEllipse(
+                    brush,
+                    pen: null,
+                    center: new Point(pt.X, pt.Y),
+                    radiusX: layerRadius,
+                    radiusY: layerRadius * 0.6);
+            }
        }

-        // Ensure latest point is always visible.
        var latest = _points[^1];
-        var latestLevel = ResolveLevel(latest.DisplayDb, _baselineDb);
        var latestX = MapX(plot, latest.Timestamp, start, totalTicks);
-        var latestY = MapY(plot, latestLevel, latest.Timestamp);
-        context.DrawEllipse(GetLevelBrush(latestLevel), pen: new Pen(Brushes.White, 1), center: new Point(latestX, latestY), radiusX: radius + 0.8, radiusY: radius + 0.8);
+        var latestY = MapYContinuous(plot, latest.DisplayDb);
+        var latestLevel = ResolveLevel(latest.DisplayDb, _baselineDb);
+
+        for (var i = 3; i >= 0; i--)
+        {
+            var radius = baseRadius * (1.5 + i * 0.8);
+            var alpha = (byte)(30 - i * 6);
+            var glowBrush = GetLevelBrushWithAlpha(latestLevel, alpha);
+            context.DrawEllipse(glowBrush, null, new Point(latestX, latestY), radius, radius * 0.6);
+        }
+
+        context.DrawEllipse(
+            GetLevelBrush(latestLevel),
+            new Pen(Brushes.White, 1.5),
+            new Point(latestX, latestY),
+            baseRadius + 1,
+            baseRadius * 0.7 + 1);
+
+        context.DrawEllipse(
+            Brushes.White,
+            null,
+            new Point(latestX, latestY),
+            2,
+            2);
    }

    private static void DrawGrid(DrawingContext context, Rect plot)
@@ -103,34 +171,28 @@ public sealed class StudyNoiseDistributionScatterChartControl : Control
        return plot.Left + plot.Width * (offsetTicks / (double)totalTicks);
    }

-    private static double MapY(Rect plot, NoiseDistributionLevel level, DateTimeOffset timestamp)
+    private double MapYContinuous(Rect plot, double displayDb)
    {
-        // 4 bands: quiet(bottom) -> extreme(top). Add deterministic jitter in each band.
-        var bandHeight = plot.Height / 4d;
-        var levelIndex = level switch
-        {
-            NoiseDistributionLevel.Quiet => 0,
-            NoiseDistributionLevel.Normal => 1,
-            NoiseDistributionLevel.Noisy => 2,
-            NoiseDistributionLevel.Extreme => 3,
-            _ => 1
-        };
+        var minDb = _baselineDb - 5;
+        var maxDb = _baselineDb + 25;
+        var dbRange = maxDb - minDb;
+        if (dbRange <= 0) dbRange = 30;

-        var centerY = plot.Bottom - ((levelIndex + 0.5) * bandHeight);
-        var jitter = ComputeJitter(timestamp.Ticks) * bandHeight * 0.26;
-        return Math.Clamp(centerY + jitter, plot.Top + 1.5, plot.Bottom - 1.5);
+        var normalizedDb = (displayDb - minDb) / dbRange;
+        normalizedDb = Math.Clamp(normalizedDb, 0, 1);
+
+        return plot.Bottom - (normalizedDb * plot.Height);
    }

-    private static double ComputeJitter(long ticks)
+    private static double ComputeJitter(double value)
    {
-        // Deterministic pseudo-random value in [-1, 1] to avoid overlap without animation noise.
-        var value = (ulong)ticks;
-        value ^= value >> 33;
-        value *= 0xff51afd7ed558ccdUL;
-        value ^= value >> 33;
-        value *= 0xc4ceb9fe1a85ec53UL;
-        value ^= value >> 33;
-        var normalized = (value & 0xFFFF) / 65535d;
+        var hash = (ulong)(value * 1000000);
+        hash ^= hash >> 33;
+        hash *= 0xff51afd7ed558ccdUL;
+        hash ^= hash >> 33;
+        hash *= 0xc4ceb9fe1a85ec53UL;
+        hash ^= hash >> 33;
+        var normalized = (hash & 0xFFFF) / 65535d;
        return (normalized * 2d) - 1d;
    }

@@ -162,11 +224,23 @@ public sealed class StudyNoiseDistributionScatterChartControl : Control
    {
        return level switch
        {
-            NoiseDistributionLevel.Quiet => QuietPointBrush,
-            NoiseDistributionLevel.Normal => NormalPointBrush,
-            NoiseDistributionLevel.Noisy => NoisyPointBrush,
-            NoiseDistributionLevel.Extreme => ExtremePointBrush,
-            _ => NormalPointBrush
+            NoiseDistributionLevel.Quiet => QuietBrush,
+            NoiseDistributionLevel.Normal => NormalBrush,
+            NoiseDistributionLevel.Noisy => NoisyBrush,
+            NoiseDistributionLevel.Extreme => ExtremeBrush,
+            _ => NormalBrush
+        };
+    }
+
+    private static IBrush GetLevelBrushWithAlpha(NoiseDistributionLevel level, byte alpha)
+    {
+        return level switch
+        {
+            NoiseDistributionLevel.Quiet => new SolidColorBrush(Color.FromArgb(alpha, 0x34, 0xD3, 0x99)),
+            NoiseDistributionLevel.Normal => new SolidColorBrush(Color.FromArgb(alpha, 0x60, 0xA5, 0xFA)),
+            NoiseDistributionLevel.Noisy => new SolidColorBrush(Color.FromArgb(alpha, 0xF5, 0x9E, 0x0B)),
+            NoiseDistributionLevel.Extreme => new SolidColorBrush(Color.FromArgb(alpha, 0xEF, 0x44, 0x44)),
+            _ => new SolidColorBrush(Color.FromArgb(alpha, 0x60, 0xA5, 0xFA))
        };
    }
 }
--- a/LanMountainDesktop/Views/Components/StudyNoiseDistributionWidget.axaml.cs
+++ b/LanMountainDesktop/Views/Components/StudyNoiseDistributionWidget.axaml.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
@@ -12,7 +12,7 @@ using LanMountainDesktop.Theme;

 namespace LanMountainDesktop.Views.Components;

-public partial class StudyNoiseDistributionWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget
+public partial class StudyNoiseDistributionWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget, IDisposable
 {
    private static readonly Color[] ValueColorCandidates =
    {
@@ -46,13 +46,14 @@ public partial class StudyNoiseDistributionWidget : UserControl, IDesktopCompone
    private readonly LocalizationService _localizationService = new();
    private readonly DispatcherTimer _uiTimer = new()
    {
-        Interval = TimeSpan.FromMilliseconds(250)
+        Interval = TimeSpan.FromMilliseconds(100)
    };

    private double _currentCellSize = 48;
    private string _languageCode = "zh-CN";
    private bool _isAttached;
    private bool _isOnActivePage = true;
+    private bool _isDisposed;
    private bool _isCompactMode;
    private bool _isUltraCompactMode;
    private IDisposable? _monitoringLease;
@@ -604,6 +605,25 @@ public partial class StudyNoiseDistributionWidget : UserControl, IDesktopCompone
    {
        return _localizationService.GetString(_languageCode, key, fallback);
    }
+
+    public void Dispose()
+    {
+        if (_isDisposed)
+        {
+            return;
+        }
+
+        _isDisposed = true;
+
+        _uiTimer.Stop();
+        _uiTimer.Tick -= OnUiTimerTick;
+        AttachedToVisualTree -= OnAttachedToVisualTree;
+        DetachedFromVisualTree -= OnDetachedFromVisualTree;
+        SizeChanged -= OnSizeChanged;
+
+        _monitoringLease?.Dispose();
+        _monitoringLease = null;
+    }
 }


--- a/LanMountainDesktop/Views/Components/StudySessionControlWidget.axaml.cs
+++ b/LanMountainDesktop/Views/Components/StudySessionControlWidget.axaml.cs
@@ -11,7 +11,7 @@ using Material.Icons;

 namespace LanMountainDesktop.Views.Components;

-public partial class StudySessionControlWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget
+public partial class StudySessionControlWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget, IDisposable
 {
    private static readonly Color[] PrimaryColorCandidates =
    {
@@ -61,6 +61,7 @@ public partial class StudySessionControlWidget : UserControl, IDesktopComponentW
    private string _languageCode = "zh-CN";
    private bool _isAttached;
    private bool _isOnActivePage = true;
+    private bool _isDisposed;
    private bool _isCompactMode;
    private bool _isUltraCompactMode;
    private IDisposable? _monitoringLease;
@@ -468,4 +469,20 @@ public partial class StudySessionControlWidget : UserControl, IDesktopComponentW
    {
        return _localizationService.GetString(_languageCode, key, fallback);
    }
+
+    public void Dispose()
+    {
+        if (_isDisposed)
+        {
+            return;
+        }
+
+        _isDisposed = true;
+
+        _uiTimer.Stop();
+        _uiTimer.Tick -= OnUiTimerTick;
+        AttachedToVisualTree -= OnAttachedToVisualTree;
+        DetachedFromVisualTree -= OnDetachedFromVisualTree;
+        SizeChanged -= OnSizeChanged;
+    }
 }
--- a/LanMountainDesktop/Views/Components/WeatherClockWidget.axaml.cs
+++ b/LanMountainDesktop/Views/Components/WeatherClockWidget.axaml.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
@@ -69,6 +69,7 @@ public partial class WeatherClockWidget : UserControl, IDesktopComponentWidget,
        AttachedToVisualTree += OnAttachedToVisualTree;
        DetachedFromVisualTree += OnDetachedFromVisualTree;
        SizeChanged += OnSizeChanged;
+        ActualThemeVariantChanged += OnActualThemeVariantChanged;

        InitializeDialIfNeeded();
        InitializeHandsIfNeeded();
@@ -238,6 +239,12 @@ public partial class WeatherClockWidget : UserControl, IDesktopComponentWidget,
        ApplyCellSize(_currentCellSize);
    }

+    private void OnActualThemeVariantChanged(object? sender, EventArgs e)
+    {
+        _isNightModeApplied = null;
+        ApplyModeVisualIfNeeded();
+    }
+
    private void OnClockTimerTick(object? sender, EventArgs e)
    {
        UpdateClockVisual();
--- a/LanMountainDesktop/packaging/linux/install.sh
+++ b/LanMountainDesktop/packaging/linux/install.sh
@@ -11,6 +11,74 @@ ICONS_DIR="${XDG_DATA_HOME:-$HOME/.local/share}/icons/hicolor/256x256/apps"
 DESKTOP_TARGET="$APPLICATIONS_DIR/LanMountainDesktop.desktop"
 ICON_TARGET="$ICONS_DIR/lanmountaindesktop.png"

+check_audio_dependencies() {
+    MISSING_DEPS=""
+
+    if command -v dpkg >/dev/null 2>&1; then
+        if ! dpkg -s libportaudio2 >/dev/null 2>&1; then
+            MISSING_DEPS="$MISSING_DEPS libportaudio2"
+        fi
+        if ! dpkg -s libasound2 >/dev/null 2>&1; then
+            MISSING_DEPS="$MISSING_DEPS libasound2"
+        fi
+    elif command -v rpm >/dev/null 2>&1; then
+        if ! rpm -q portaudio-libs >/dev/null 2>&1; then
+            MISSING_DEPS="$MISSING_DEPS portaudio-libs"
+        fi
+        if ! rpm -q alsa-lib >/dev/null 2>&1; then
+            MISSING_DEPS="$MISSING_DEPS alsa-lib"
+        fi
+    elif command -v pacman >/dev/null 2>&1; then
+        if ! pacman -Q portaudio >/dev/null 2>&1; then
+            MISSING_DEPS="$MISSING_DEPS portaudio"
+        fi
+        if ! pacman -Q alsa-lib >/dev/null 2>&1; then
+            MISSING_DEPS="$MISSING_DEPS alsa-lib"
+        fi
+    elif command -v apk >/dev/null 2>&1; then
+        if ! apk -e info portaudio >/dev/null 2>&1; then
+            MISSING_DEPS="$MISSING_DEPS portaudio"
+        fi
+        if ! apk -e info alsa-lib >/dev/null 2>&1; then
+            MISSING_DEPS="$MISSING_DEPS alsa-lib"
+        fi
+    fi
+
+    if [ -n "$MISSING_DEPS" ]; then
+        return 1
+    fi
+    return 0
+}
+
+install_audio_dependencies() {
+    if command -v apt-get >/dev/null 2>&1; then
+        sudo apt-get update
+        sudo apt-get install -y libportaudio2 libasound2
+    elif command -v dnf >/dev/null 2>&1; then
+        sudo dnf install -y portaudio-libs alsa-lib
+    elif command -v yum >/dev/null 2>&1; then
+        sudo yum install -y portaudio-libs alsa-lib
+    elif command -v pacman >/dev/null 2>&1; then
+        sudo pacman -S --noconfirm portaudio alsa-lib
+    elif command -v apk >/dev/null 2>&1; then
+        sudo apk add portaudio alsa-lib
+    else
+        printf '%s\n' "Warning: Could not detect package manager. Please install audio dependencies manually:"
+        printf '%s\n' "  - libportaudio2 (or portaudio-libs/portaudio)"
+        printf '%s\n' "  - libasound2 (or alsa-lib)"
+    fi
+}
+
+if ! check_audio_dependencies; then
+    printf '%s\n' "Installing audio dependencies for recording features..."
+    install_audio_dependencies
+
+    if ! check_audio_dependencies; then
+        printf '%s\n' "Warning: Audio dependencies may not be installed correctly."
+        printf '%s\n' "Recording and study monitoring features may not work properly."
+    fi
+fi
+
 mkdir -p "$APPLICATIONS_DIR" "$ICONS_DIR"

 cp "$ICON_SOURCE" "$ICON_TARGET"
--- a/run.md
+++ b/run.md
@@ -26,3 +26,29 @@ dotnet run --project LanMountainDesktop/LanMountainDesktop.csproj
 - 启动失败提示 SDK 版本不匹配：确认 `dotnet --info` 中已安装 .NET 10 SDK。
 - 桌面端视频相关能力异常：优先在 Windows 环境下验证。
 - 配置重置：删除 `%LOCALAPPDATA%\LanMountainDesktop\settings.json` 后重启应用。
+
+## 6. Linux 音频功能依赖
+
+如果在 Linux 上使用录音机组件或自习监测组件，需要安装以下音频库：
+
+### Debian/Ubuntu
+```bash
+sudo apt install libportaudio2 libasound2
+```
+
+### Fedora/RHEL
+```bash
+sudo dnf install portaudio-libs alsa-lib
+```
+
+### Arch Linux
+```bash
+sudo pacman -S portaudio alsa-lib
+```
+
+### Alpine Linux
+```bash
+sudo apk add portaudio alsa-lib
+```
+
+> 注：如果未安装这些依赖，录音和自习监测功能将不可用，但应用其他功能可以正常运行。