Files
LanMountainDesktop/LanMontainDesktop/Views/MainWindow.Settings.cs
lincube b224f07e69 0.1.5
2026-02-28 03:00:25 +08:00

1188 lines
38 KiB
C#

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Threading.Tasks;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Interactivity;
using Avalonia.Media;
using Avalonia.Media.Imaging;
using Avalonia.Platform;
using Avalonia.Platform.Storage;
using Avalonia.Styling;
using Avalonia.Threading;
using LanMontainDesktop.Models;
using LanMontainDesktop.Services;
using LanMontainDesktop.Theme;
using LibVLCSharp.Shared;
namespace LanMontainDesktop.Views;
public partial class MainWindow
{
private void OnOpenSettingsClick(object? sender, RoutedEventArgs e)
{
OpenSettingsPage();
}
private void OnCloseSettingsClick(object? sender, RoutedEventArgs e)
{
CloseSettingsPage();
}
private void OnSettingsNavSelectionChanged(object? sender, SelectionChangedEventArgs e)
{
UpdateSettingsTabContent();
PersistSettings();
}
private void UpdateSettingsTabContent()
{
// SelectionChanged can fire during XAML initialization before all named controls are assigned.
if (SettingsNavListBox is null ||
GridSettingsPanel is null ||
WallpaperSettingsPanel is null ||
ColorSettingsPanel is null ||
StatusBarSettingsPanel is null)
{
return;
}
var selectedIndex = SettingsNavListBox.SelectedIndex;
WallpaperSettingsPanel.IsVisible = selectedIndex == 0;
GridSettingsPanel.IsVisible = selectedIndex == 1;
ColorSettingsPanel.IsVisible = selectedIndex == 2;
StatusBarSettingsPanel.IsVisible = selectedIndex == 3;
ApplyTaskbarActionVisibility(GetCurrentTaskbarContext());
}
private void OnStatusBarClockChecked(object? sender, RoutedEventArgs e)
{
if (_suppressStatusBarToggleEvents)
{
return;
}
_topStatusComponentIds.Add(ClockStatusComponentId);
ApplyTopStatusComponentVisibility();
UpdateWallpaperPreviewLayout();
PersistSettings();
}
private void OnStatusBarClockUnchecked(object? sender, RoutedEventArgs e)
{
if (_suppressStatusBarToggleEvents)
{
return;
}
_topStatusComponentIds.Remove(ClockStatusComponentId);
ApplyTopStatusComponentVisibility();
UpdateWallpaperPreviewLayout();
PersistSettings();
}
private void OnNightModeChecked(object? sender, RoutedEventArgs e)
{
if (_suppressThemeToggleEvents)
{
return;
}
ApplyNightModeState(true, refreshPalettes: true);
}
private void OnNightModeUnchecked(object? sender, RoutedEventArgs e)
{
if (_suppressThemeToggleEvents)
{
return;
}
ApplyNightModeState(false, refreshPalettes: true);
}
private void OnRecommendedColorClick(object? sender, RoutedEventArgs e)
{
ApplyThemeColorFromButton(sender as Button, "Recommended");
}
private void OnMonetColorClick(object? sender, RoutedEventArgs e)
{
ApplyThemeColorFromButton(sender as Button, "Monet");
}
private void OnRefreshMonetColorsClick(object? sender, RoutedEventArgs e)
{
RefreshColorPalettes();
EnsureSelectedThemeColor();
UpdateThemeColorSelectionState();
ThemeColorStatusTextBlock.Text = "Monet colors refreshed.";
UpdateAdaptiveTextSystem();
PersistSettings();
}
private async void OnPickWallpaperClick(object? sender, RoutedEventArgs e)
{
if (StorageProvider is null)
{
_wallpaperStatus = "Storage provider is unavailable.";
UpdateWallpaperDisplay();
return;
}
var options = new FilePickerOpenOptions
{
Title = "Select wallpaper",
AllowMultiple = false,
FileTypeFilter =
[
new FilePickerFileType("Image files")
{
Patterns = ["*.png", "*.jpg", "*.jpeg", "*.bmp", "*.gif", "*.webp"]
},
new FilePickerFileType("Video files")
{
Patterns = ["*.mp4", "*.mkv", "*.webm", "*.avi", "*.mov", "*.m4v"]
}
]
};
var files = await StorageProvider.OpenFilePickerAsync(options);
if (files.Count == 0)
{
return;
}
var file = files[0];
try
{
var importedPath = await ImportWallpaperAssetAsync(file);
if (string.IsNullOrWhiteSpace(importedPath))
{
_wallpaperStatus = "Failed to import wallpaper file.";
UpdateWallpaperDisplay();
return;
}
_wallpaperPath = importedPath;
var mediaType = DetectWallpaperMediaType(importedPath);
switch (mediaType)
{
case WallpaperMediaType.Image:
_wallpaperBitmap?.Dispose();
_wallpaperBitmap = new Bitmap(importedPath);
_wallpaperVideoPath = null;
_wallpaperMediaType = WallpaperMediaType.Image;
_wallpaperStatus = "Image wallpaper applied.";
break;
case WallpaperMediaType.Video:
_wallpaperBitmap?.Dispose();
_wallpaperBitmap = null;
_wallpaperVideoPath = importedPath;
_wallpaperMediaType = WallpaperMediaType.Video;
_wallpaperStatus = "Video wallpaper applied.";
break;
default:
_wallpaperStatus = "Selected file type is not supported.";
UpdateWallpaperDisplay();
return;
}
ApplyWallpaperBrush();
UpdateWallpaperDisplay();
RefreshColorPalettes();
EnsureSelectedThemeColor();
UpdateThemeColorSelectionState();
ThemeColorStatusTextBlock.Text = _wallpaperMediaType == WallpaperMediaType.Video
? "Video wallpaper updated. Theme colors refreshed."
: "Wallpaper updated. Monet colors refreshed.";
PersistSettings();
}
catch (Exception ex)
{
_wallpaperStatus = $"Failed to apply wallpaper: {ex.Message}";
UpdateWallpaperDisplay();
}
}
private void OnClearWallpaperClick(object? sender, RoutedEventArgs e)
{
StopVideoWallpaper();
_wallpaperVideoPath = null;
_wallpaperMediaType = WallpaperMediaType.None;
_wallpaperBitmap?.Dispose();
_wallpaperBitmap = null;
_wallpaperPath = null;
_wallpaperStatus = "Background reset to solid color.";
ApplyWallpaperBrush();
UpdateWallpaperDisplay();
RefreshColorPalettes();
EnsureSelectedThemeColor();
UpdateThemeColorSelectionState();
ThemeColorStatusTextBlock.Text = "Wallpaper cleared. Monet colors refreshed.";
PersistSettings();
}
private void OnWallpaperPlacementSelectionChanged(object? sender, SelectionChangedEventArgs e)
{
ApplyWallpaperBrush();
if (_wallpaperMediaType == WallpaperMediaType.Image && _wallpaperBitmap is not null)
{
_wallpaperStatus = $"Wallpaper mode: {GetPlacementDisplayName(GetSelectedWallpaperPlacement())}.";
}
else if (_wallpaperMediaType == WallpaperMediaType.Video)
{
_wallpaperStatus = "Video wallpaper mode uses automatic fill.";
}
UpdateWallpaperDisplay();
PersistSettings();
}
private void ApplyWallpaperBrush()
{
if (_wallpaperMediaType == WallpaperMediaType.Video &&
!string.IsNullOrWhiteSpace(_wallpaperVideoPath))
{
DesktopWallpaperLayer.Background = Brushes.Transparent;
WallpaperPreviewViewport.Background = GetThemeDefaultDesktopBackground();
PlayVideoWallpaper(_wallpaperVideoPath);
return;
}
StopVideoWallpaper();
if (_wallpaperBitmap is null)
{
var fallbackBackground = GetThemeDefaultDesktopBackground();
DesktopWallpaperLayer.Background = fallbackBackground;
WallpaperPreviewViewport.Background = fallbackBackground;
return;
}
var placement = GetSelectedWallpaperPlacement();
DesktopWallpaperLayer.Background = CreateWallpaperBrush(_wallpaperBitmap, placement, false);
WallpaperPreviewViewport.Background = CreateWallpaperBrush(_wallpaperBitmap, placement, true);
}
private void UpdateWallpaperDisplay()
{
if (WallpaperPathTextBlock is null ||
WallpaperStatusTextBlock is null ||
WallpaperPreviewViewport is null ||
WallpaperPlacementComboBox is null)
{
return;
}
WallpaperPathTextBlock.Text = string.IsNullOrWhiteSpace(_wallpaperPath)
? "No wallpaper selected."
: Path.GetFileName(_wallpaperPath);
WallpaperStatusTextBlock.Text = _wallpaperStatus;
WallpaperPlacementComboBox.IsEnabled = _wallpaperMediaType != WallpaperMediaType.Video;
if (_wallpaperMediaType == WallpaperMediaType.Video)
{
WallpaperPreviewViewport.Background = GetThemeDefaultDesktopBackground();
return;
}
if (_wallpaperBitmap is null)
{
WallpaperPreviewViewport.Background = GetThemeDefaultDesktopBackground();
return;
}
WallpaperPreviewViewport.Background = CreateWallpaperBrush(
_wallpaperBitmap,
GetSelectedWallpaperPlacement(),
true);
}
private ImageBrush CreateWallpaperBrush(Bitmap bitmap, WallpaperPlacement placement, bool forPreview)
{
var brush = new ImageBrush
{
Source = bitmap,
Stretch = Stretch.UniformToFill,
AlignmentX = AlignmentX.Center,
AlignmentY = AlignmentY.Center,
TileMode = TileMode.None
};
switch (placement)
{
case WallpaperPlacement.Fill:
brush.Stretch = Stretch.UniformToFill;
break;
case WallpaperPlacement.Fit:
brush.Stretch = Stretch.Uniform;
break;
case WallpaperPlacement.Stretch:
brush.Stretch = Stretch.Fill;
break;
case WallpaperPlacement.Center:
brush.Stretch = Stretch.None;
break;
case WallpaperPlacement.Tile:
brush.Stretch = Stretch.None;
brush.TileMode = TileMode.Tile;
var tileSize = forPreview ? 96d : 220d;
brush.DestinationRect = new RelativeRect(0, 0, tileSize, tileSize, RelativeUnit.Absolute);
break;
}
return brush;
}
private WallpaperPlacement GetSelectedWallpaperPlacement()
{
return WallpaperPlacementComboBox?.SelectedIndex switch
{
1 => WallpaperPlacement.Fit,
2 => WallpaperPlacement.Stretch,
3 => WallpaperPlacement.Center,
4 => WallpaperPlacement.Tile,
_ => WallpaperPlacement.Fill
};
}
private static string GetPlacementDisplayName(WallpaperPlacement placement)
{
return placement switch
{
WallpaperPlacement.Fill => "Fill",
WallpaperPlacement.Fit => "Fit",
WallpaperPlacement.Stretch => "Stretch",
WallpaperPlacement.Center => "Center",
WallpaperPlacement.Tile => "Tile",
_ => "Fill"
};
}
private IBrush GetThemeDefaultDesktopBackground()
{
if (Resources.TryGetResource("AdaptiveSurfaceBaseBrush", ActualThemeVariant, out var resource) &&
resource is IBrush themedBrush)
{
return themedBrush;
}
return _defaultDesktopBackground ??
(_isNightMode
? new SolidColorBrush(Color.Parse("#FF0B1220"))
: new SolidColorBrush(Color.Parse("#FFF3F7FB")));
}
private static int GetPlacementIndexFromSetting(string? placement)
{
if (string.IsNullOrWhiteSpace(placement))
{
return 0;
}
return placement.Trim().ToLowerInvariant() switch
{
"fit" => 1,
"stretch" => 2,
"center" => 3,
"tile" => 4,
_ => 0
};
}
private void TryRestoreWallpaper(string? savedWallpaperPath)
{
StopVideoWallpaper();
_wallpaperMediaType = WallpaperMediaType.None;
_wallpaperVideoPath = null;
_wallpaperBitmap?.Dispose();
_wallpaperBitmap = null;
_wallpaperPath = null;
if (string.IsNullOrWhiteSpace(savedWallpaperPath))
{
_wallpaperStatus = "Current background uses solid color.";
return;
}
if (!Path.IsPathRooted(savedWallpaperPath) || !File.Exists(savedWallpaperPath))
{
_wallpaperStatus = "Saved wallpaper file was not found. Using solid color background.";
return;
}
try
{
var mediaType = DetectWallpaperMediaType(savedWallpaperPath);
switch (mediaType)
{
case WallpaperMediaType.Image:
_wallpaperBitmap = new Bitmap(savedWallpaperPath);
_wallpaperPath = savedWallpaperPath;
_wallpaperMediaType = WallpaperMediaType.Image;
_wallpaperStatus = "Wallpaper restored from saved settings.";
break;
case WallpaperMediaType.Video:
_wallpaperVideoPath = savedWallpaperPath;
_wallpaperPath = savedWallpaperPath;
_wallpaperMediaType = WallpaperMediaType.Video;
_wallpaperStatus = "Video wallpaper restored from saved settings.";
break;
default:
_wallpaperStatus = "Saved wallpaper type is not supported. Using solid color background.";
break;
}
}
catch
{
_wallpaperStatus = "Failed to restore saved wallpaper. Using solid color background.";
_wallpaperBitmap?.Dispose();
_wallpaperBitmap = null;
_wallpaperMediaType = WallpaperMediaType.None;
_wallpaperVideoPath = null;
_wallpaperPath = null;
}
}
private static bool TryParseColor(string? colorText, out Color color)
{
color = default;
if (string.IsNullOrWhiteSpace(colorText))
{
return false;
}
try
{
color = Color.Parse(colorText);
return true;
}
catch
{
return false;
}
}
private static WallpaperMediaType DetectWallpaperMediaType(string path)
{
var extension = Path.GetExtension(path);
if (string.IsNullOrWhiteSpace(extension))
{
return WallpaperMediaType.None;
}
if (SupportedImageExtensions.Contains(extension))
{
return WallpaperMediaType.Image;
}
if (SupportedVideoExtensions.Contains(extension))
{
return WallpaperMediaType.Video;
}
return WallpaperMediaType.None;
}
private static async Task<string?> ImportWallpaperAssetAsync(IStorageFile file)
{
try
{
var extension = Path.GetExtension(file.Name);
if (string.IsNullOrWhiteSpace(extension))
{
extension = ".bin";
}
var appData = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
var wallpaperDirectory = Path.Combine(appData, "LanMontainDesktop", "Wallpapers");
Directory.CreateDirectory(wallpaperDirectory);
var destinationPath = Path.Combine(
wallpaperDirectory,
$"{DateTime.Now:yyyyMMdd_HHmmss}_{Guid.NewGuid():N}{extension}");
await using var sourceStream = await file.OpenReadAsync();
await using var destinationStream = File.Create(destinationPath);
await sourceStream.CopyToAsync(destinationStream);
return destinationPath;
}
catch
{
return null;
}
}
private void EnsureVideoWallpaperPlayers()
{
Core.Initialize();
_libVlc ??= new LibVLC("--quiet");
if (_videoWallpaperPlayer is null && DesktopVideoWallpaperView is not null)
{
_videoWallpaperPlayer = new MediaPlayer(_libVlc);
DesktopVideoWallpaperView.MediaPlayer = _videoWallpaperPlayer;
}
if (_previewVideoWallpaperPlayer is null && WallpaperPreviewVideoView is not null)
{
_previewVideoWallpaperPlayer = new MediaPlayer(_libVlc);
WallpaperPreviewVideoView.MediaPlayer = _previewVideoWallpaperPlayer;
}
}
private void PlayVideoWallpaper(string videoPath)
{
if (!File.Exists(videoPath))
{
_wallpaperStatus = "Video wallpaper file not found.";
StopVideoWallpaper();
return;
}
try
{
EnsureVideoWallpaperPlayers();
if (_videoWallpaperPlayer is null ||
_previewVideoWallpaperPlayer is null ||
_libVlc is null ||
DesktopVideoWallpaperView is null ||
WallpaperPreviewVideoView is null)
{
_wallpaperStatus = "Video player is unavailable.";
StopVideoWallpaper();
return;
}
_videoWallpaperMedia?.Dispose();
_previewVideoWallpaperMedia?.Dispose();
_videoWallpaperMedia = new Media(_libVlc, new Uri(videoPath));
_previewVideoWallpaperMedia = new Media(_libVlc, new Uri(videoPath));
_videoWallpaperMedia.AddOption(":input-repeat=65535");
_previewVideoWallpaperMedia.AddOption(":input-repeat=65535");
_videoWallpaperPlayer.Play(_videoWallpaperMedia);
_previewVideoWallpaperPlayer.Play(_previewVideoWallpaperMedia);
DesktopVideoWallpaperView.IsVisible = true;
WallpaperPreviewVideoView.IsVisible = true;
}
catch (Exception ex)
{
_wallpaperStatus = $"Failed to play video wallpaper: {ex.Message}";
StopVideoWallpaper();
}
}
private void StopVideoWallpaper()
{
if (DesktopVideoWallpaperView is not null)
{
DesktopVideoWallpaperView.IsVisible = false;
}
if (WallpaperPreviewVideoView is not null)
{
WallpaperPreviewVideoView.IsVisible = false;
}
if (_videoWallpaperPlayer?.IsPlaying == true)
{
_videoWallpaperPlayer.Stop();
}
if (_previewVideoWallpaperPlayer?.IsPlaying == true)
{
_previewVideoWallpaperPlayer.Stop();
}
_videoWallpaperMedia?.Dispose();
_videoWallpaperMedia = null;
_previewVideoWallpaperMedia?.Dispose();
_previewVideoWallpaperMedia = null;
}
private void ApplyTaskbarSettings(AppSettingsSnapshot snapshot)
{
_topStatusComponentIds.Clear();
if (snapshot.TopStatusComponentIds is not null)
{
foreach (var componentId in snapshot.TopStatusComponentIds)
{
if (!string.IsNullOrWhiteSpace(componentId))
{
_topStatusComponentIds.Add(componentId.Trim());
}
}
}
_pinnedTaskbarActions.Clear();
if (snapshot.PinnedTaskbarActions is not null)
{
foreach (var actionText in snapshot.PinnedTaskbarActions)
{
if (Enum.TryParse<TaskbarActionId>(actionText, ignoreCase: true, out var action))
{
_pinnedTaskbarActions.Add(action);
}
}
}
if (_pinnedTaskbarActions.Count == 0)
{
foreach (var action in DefaultPinnedTaskbarActions)
{
_pinnedTaskbarActions.Add(action);
}
}
_enableDynamicTaskbarActions = snapshot.EnableDynamicTaskbarActions;
_taskbarLayoutMode = string.IsNullOrWhiteSpace(snapshot.TaskbarLayoutMode)
? TaskbarLayoutBottomFullRowMacStyle
: snapshot.TaskbarLayoutMode;
}
private void ApplyTopStatusComponentVisibility()
{
var showClock = _topStatusComponentIds.Contains(ClockStatusComponentId);
if (ClockWidget is not null)
{
ClockWidget.IsVisible = showClock;
}
if (WallpaperPreviewClockContainer is not null)
{
WallpaperPreviewClockContainer.IsVisible = showClock;
}
if (WallpaperPreviewClockTextBlock is not null && showClock)
{
WallpaperPreviewClockTextBlock.Text = DateTime.Now.ToString("HH:mm");
}
}
private TaskbarContext GetCurrentTaskbarContext()
{
if (!_isSettingsOpen)
{
return TaskbarContext.Desktop;
}
return SettingsNavListBox?.SelectedIndex switch
{
0 => TaskbarContext.SettingsWallpaper,
1 => TaskbarContext.SettingsGrid,
2 => TaskbarContext.SettingsColor,
3 => TaskbarContext.SettingsStatusBar,
_ => TaskbarContext.Desktop
};
}
private void ApplyTaskbarActionVisibility(TaskbarContext context)
{
if (BackToWindowsContainer is null ||
OpenSettingsContainer is null ||
WallpaperPreviewBackButtonContainer is null ||
WallpaperPreviewSettingsButtonContainer is null)
{
return;
}
var showMinimize = _pinnedTaskbarActions.Contains(TaskbarActionId.MinimizeToWindows);
var showSettings = _pinnedTaskbarActions.Contains(TaskbarActionId.OpenSettings);
BackToWindowsContainer.IsVisible = showMinimize;
OpenSettingsContainer.IsVisible = showSettings;
WallpaperPreviewBackButtonContainer.IsVisible = showMinimize;
WallpaperPreviewSettingsButtonContainer.IsVisible = showSettings;
if (TaskbarFixedActionsHost is not null)
{
TaskbarFixedActionsHost.IsVisible = showMinimize || showSettings;
}
if (WallpaperPreviewTaskbarFixedActionsHost is not null)
{
WallpaperPreviewTaskbarFixedActionsHost.IsVisible = showMinimize || showSettings;
}
var dynamicActions = ResolveDynamicTaskbarActions(context);
var hasDynamicActions = dynamicActions.Count > 0;
BuildDynamicTaskbarVisuals(dynamicActions);
if (TaskbarDynamicActionsHost is not null)
{
TaskbarDynamicActionsHost.IsVisible = hasDynamicActions;
}
if (WallpaperPreviewTaskbarDynamicActionsHost is not null)
{
WallpaperPreviewTaskbarDynamicActionsHost.IsVisible = hasDynamicActions;
}
}
private IReadOnlyList<TaskbarActionItem> ResolveDynamicTaskbarActions(TaskbarContext context)
{
if (!_enableDynamicTaskbarActions)
{
return Array.Empty<TaskbarActionItem>();
}
// Reserved for page-specific actions. Disabled by default in this phase.
_ = context;
return Array.Empty<TaskbarActionItem>();
}
private void BuildDynamicTaskbarVisuals(IReadOnlyList<TaskbarActionItem> actions)
{
if (TaskbarDynamicActionsPanel is not null)
{
TaskbarDynamicActionsPanel.Children.Clear();
}
if (WallpaperPreviewTaskbarDynamicActionsPanel is not null)
{
WallpaperPreviewTaskbarDynamicActionsPanel.Children.Clear();
}
if (actions.Count == 0 ||
TaskbarDynamicActionsPanel is null ||
WallpaperPreviewTaskbarDynamicActionsPanel is null)
{
return;
}
foreach (var action in actions)
{
if (!action.IsVisible)
{
continue;
}
var button = new Button
{
Content = action.Title,
Background = Brushes.Transparent,
BorderThickness = new Thickness(0),
Padding = new Thickness(12, 6),
Foreground = Foreground
};
TaskbarDynamicActionsPanel.Children.Add(button);
var previewText = new TextBlock
{
Text = action.Title,
Foreground = Foreground,
HorizontalAlignment = Avalonia.Layout.HorizontalAlignment.Center,
VerticalAlignment = Avalonia.Layout.VerticalAlignment.Center
};
var previewBorder = new Border
{
Background = Brushes.Transparent,
BorderThickness = new Thickness(0),
Child = previewText
};
WallpaperPreviewTaskbarDynamicActionsPanel.Children.Add(previewBorder);
}
}
private void PersistSettings()
{
if (_suppressSettingsPersistence)
{
return;
}
var snapshot = new AppSettingsSnapshot
{
GridShortSideCells = _targetShortSideCells,
IsNightMode = _isNightMode,
ThemeColor = _selectedThemeColor.ToString(),
WallpaperPath = _wallpaperPath,
WallpaperPlacement = GetPlacementDisplayName(GetSelectedWallpaperPlacement()),
SettingsTabIndex = Math.Max(0, SettingsNavListBox?.SelectedIndex ?? 0),
TopStatusComponentIds = _topStatusComponentIds.ToList(),
PinnedTaskbarActions = _pinnedTaskbarActions.Select(action => action.ToString()).ToList(),
EnableDynamicTaskbarActions = _enableDynamicTaskbarActions,
TaskbarLayoutMode = _taskbarLayoutMode
};
_appSettingsService.Save(snapshot);
}
private void UpdateAdaptiveTextSystem()
{
var isLightBackground = _isSettingsOpen
? !_isNightMode
: CalculateCurrentBackgroundLuminance() >= LightBackgroundLuminanceThreshold;
var isLightNavBackground = _isSettingsOpen
? !_isNightMode
: CalculateBrushLuminance(SettingsNavPanelBorder?.Background) >= LightBackgroundLuminanceThreshold;
var context = new ThemeColorContext(
_selectedThemeColor,
isLightBackground,
isLightNavBackground,
_isNightMode);
ThemeColorSystemService.ApplyThemeResources(Resources, context);
GlassEffectService.ApplyGlassResources(Resources, context);
if (_fluentAvaloniaTheme is not null)
{
_fluentAvaloniaTheme.CustomAccentColor = _selectedThemeColor;
}
}
private double CalculateCurrentBackgroundLuminance()
{
if (_isSettingsOpen)
{
return CalculateBrushLuminance(SettingsContentPanel?.Background ?? SettingsPage?.Background);
}
if (_wallpaperMediaType == WallpaperMediaType.Video)
{
return CalculateRelativeLuminance(Color.Parse("#FF0B1220"));
}
if (_wallpaperBitmap is not null)
{
return CalculateBitmapAverageLuminance(_wallpaperBitmap);
}
return CalculateBrushLuminance(DesktopWallpaperLayer.Background ?? _defaultDesktopBackground);
}
private void ApplyNightModeState(bool enabled, bool refreshPalettes)
{
_isNightMode = enabled;
RequestedThemeVariant = enabled ? ThemeVariant.Dark : ThemeVariant.Light;
_suppressThemeToggleEvents = true;
NightModeToggleSwitch.IsChecked = enabled;
_suppressThemeToggleEvents = false;
ThemeModeStatusTextBlock.Text = enabled ? "Night mode enabled" : "Day mode enabled";
if (refreshPalettes)
{
RefreshColorPalettes();
EnsureSelectedThemeColor();
}
UpdateThemeColorSelectionState();
ThemeColorStatusTextBlock.Text = $"Theme mode: {(enabled ? "Night" : "Day")}.";
UpdateAdaptiveTextSystem();
ApplyWallpaperBrush();
PersistSettings();
}
private void RefreshColorPalettes()
{
var palette = _monetColorService.BuildPalette(_wallpaperBitmap, _isNightMode);
_recommendedColors = palette.RecommendedColors;
_monetColors = palette.MonetColors;
ApplyColorPaletteToButtons(_recommendedColors, GetRecommendedColorTargets());
ApplyColorPaletteToButtons(_monetColors, GetMonetColorTargets());
}
private void ApplyColorPaletteToButtons(
IReadOnlyList<Color> colors,
IReadOnlyList<(Button Button, Border Swatch)> targets)
{
for (var i = 0; i < targets.Count; i++)
{
var color = i < colors.Count
? colors[i]
: Color.Parse("#00000000");
var (button, swatch) = targets[i];
button.Tag = color.ToString();
button.IsEnabled = i < colors.Count;
swatch.Background = i < colors.Count
? new SolidColorBrush(color)
: new SolidColorBrush(Color.Parse("#00000000"));
}
}
private IReadOnlyList<(Button Button, Border Swatch)> GetRecommendedColorTargets()
{
return
[
(RecommendedColorButton1, RecommendedColorSwatch1),
(RecommendedColorButton2, RecommendedColorSwatch2),
(RecommendedColorButton3, RecommendedColorSwatch3),
(RecommendedColorButton4, RecommendedColorSwatch4),
(RecommendedColorButton5, RecommendedColorSwatch5),
(RecommendedColorButton6, RecommendedColorSwatch6)
];
}
private IReadOnlyList<(Button Button, Border Swatch)> GetMonetColorTargets()
{
return
[
(MonetColorButton1, MonetColorSwatch1),
(MonetColorButton2, MonetColorSwatch2),
(MonetColorButton3, MonetColorSwatch3),
(MonetColorButton4, MonetColorSwatch4),
(MonetColorButton5, MonetColorSwatch5),
(MonetColorButton6, MonetColorSwatch6)
];
}
private void EnsureSelectedThemeColor()
{
if (ContainsColor(_recommendedColors, _selectedThemeColor) ||
ContainsColor(_monetColors, _selectedThemeColor))
{
return;
}
if (_recommendedColors.Count > 0)
{
_selectedThemeColor = _recommendedColors[0];
return;
}
if (_monetColors.Count > 0)
{
_selectedThemeColor = _monetColors[0];
}
}
private void ApplyThemeColorFromButton(Button? button, string sourceLabel)
{
if (!TryGetButtonColor(button, out var color))
{
return;
}
_selectedThemeColor = color;
UpdateThemeColorSelectionState();
ThemeColorStatusTextBlock.Text = $"{sourceLabel} color applied: {_selectedThemeColor}.";
UpdateAdaptiveTextSystem();
PersistSettings();
}
private void UpdateThemeColorSelectionState()
{
UpdateColorSelectionVisuals(GetRecommendedColorTargets());
UpdateColorSelectionVisuals(GetMonetColorTargets());
}
private void UpdateColorSelectionVisuals(IReadOnlyList<(Button Button, Border Swatch)> targets)
{
foreach (var (button, swatch) in targets)
{
var isSelected = TryGetButtonColor(button, out var color) && AreSameColor(color, _selectedThemeColor);
button.Classes.Set("swatch-button", true);
button.Classes.Set("swatch-selected", isSelected);
swatch.BorderThickness = new Thickness(0);
swatch.Opacity = isSelected ? 1 : 0.9;
}
}
private static bool TryGetButtonColor(Button? button, out Color color)
{
color = default;
if (button?.Tag is not string colorText || string.IsNullOrWhiteSpace(colorText))
{
return false;
}
try
{
color = Color.Parse(colorText);
return true;
}
catch
{
return false;
}
}
private static bool ContainsColor(IReadOnlyList<Color> colors, Color target)
{
for (var i = 0; i < colors.Count; i++)
{
if (AreSameColor(colors[i], target))
{
return true;
}
}
return false;
}
private static bool AreSameColor(Color left, Color right)
{
return left.R == right.R && left.G == right.G && left.B == right.B;
}
private static double CalculateBrushLuminance(IBrush? brush)
{
if (brush is ISolidColorBrush solidBrush)
{
return CalculateRelativeLuminance(solidBrush.Color);
}
return CalculateRelativeLuminance(Color.Parse("#FF020617"));
}
private static double CalculateBitmapAverageLuminance(Bitmap bitmap)
{
try
{
var sampleWidth = Math.Clamp(bitmap.PixelSize.Width, 1, 48);
var sampleHeight = Math.Clamp(bitmap.PixelSize.Height, 1, 48);
using var scaledBitmap = bitmap.CreateScaledBitmap(
new PixelSize(sampleWidth, sampleHeight),
BitmapInterpolationMode.MediumQuality);
using var writeable = new WriteableBitmap(
scaledBitmap.PixelSize,
new Vector(96, 96),
PixelFormat.Bgra8888,
AlphaFormat.Premul);
using var framebuffer = writeable.Lock();
scaledBitmap.CopyPixels(framebuffer, AlphaFormat.Premul);
var rowBytes = framebuffer.RowBytes;
var byteCount = rowBytes * framebuffer.Size.Height;
if (byteCount <= 0 || framebuffer.Address == IntPtr.Zero)
{
return CalculateRelativeLuminance(Color.Parse("#FF020617"));
}
var pixelBuffer = new byte[byteCount];
Marshal.Copy(framebuffer.Address, pixelBuffer, 0, byteCount);
double luminanceSum = 0;
var pixelCount = 0;
for (var y = 0; y < framebuffer.Size.Height; y++)
{
var rowOffset = y * rowBytes;
for (var x = 0; x < framebuffer.Size.Width; x++)
{
var index = rowOffset + (x * 4);
var alpha = pixelBuffer[index + 3] / 255d;
if (alpha <= 0.01)
{
continue;
}
var blue = (pixelBuffer[index] / 255d) / alpha;
var green = (pixelBuffer[index + 1] / 255d) / alpha;
var red = (pixelBuffer[index + 2] / 255d) / alpha;
red = Math.Clamp(red, 0, 1);
green = Math.Clamp(green, 0, 1);
blue = Math.Clamp(blue, 0, 1);
luminanceSum += CalculateRelativeLuminance(red, green, blue);
pixelCount++;
}
}
return pixelCount > 0
? luminanceSum / pixelCount
: CalculateRelativeLuminance(Color.Parse("#FF020617"));
}
catch
{
return CalculateRelativeLuminance(Color.Parse("#FF020617"));
}
}
private static double CalculateRelativeLuminance(Color color)
{
return CalculateRelativeLuminance(color.R / 255d, color.G / 255d, color.B / 255d);
}
private static double CalculateRelativeLuminance(double red, double green, double blue)
{
var linearRed = ToLinearRgb(red);
var linearGreen = ToLinearRgb(green);
var linearBlue = ToLinearRgb(blue);
return (0.2126 * linearRed) + (0.7152 * linearGreen) + (0.0722 * linearBlue);
}
private static double ToLinearRgb(double value)
{
return value <= 0.04045
? value / 12.92
: Math.Pow((value + 0.055) / 1.055, 2.4);
}
private void OpenSettingsPage()
{
if (_isSettingsOpen)
{
return;
}
_isSettingsOpen = true;
UpdateAdaptiveTextSystem();
ApplyWallpaperBrush();
ApplyTaskbarActionVisibility(GetCurrentTaskbarContext());
SettingsPage.IsVisible = true;
SettingsPage.Opacity = 0;
if (_settingsContentPanelTransform is not null)
{
_settingsContentPanelTransform.Y = 30;
}
DesktopPage.IsHitTestVisible = false;
UpdateWallpaperPreviewLayout();
Dispatcher.UIThread.Post(() =>
{
if (!_isSettingsOpen)
{
return;
}
SettingsPage.Opacity = 1;
if (_settingsContentPanelTransform is not null)
{
_settingsContentPanelTransform.Y = 0;
}
}, DispatcherPriority.Background);
}
private void CloseSettingsPage()
{
if (!_isSettingsOpen)
{
return;
}
_isSettingsOpen = false;
UpdateAdaptiveTextSystem();
ApplyWallpaperBrush();
ApplyTaskbarActionVisibility(GetCurrentTaskbarContext());
DesktopPage.IsHitTestVisible = true;
SettingsPage.Opacity = 0;
if (_settingsContentPanelTransform is not null)
{
_settingsContentPanelTransform.Y = 30;
}
DispatcherTimer.RunOnce(() =>
{
if (_isSettingsOpen)
{
return;
}
SettingsPage.IsVisible = false;
}, TimeSpan.FromMilliseconds(SettingsTransitionDurationMs));
}
}