295 lines
9.0 KiB
C#
295 lines
9.0 KiB
C#
using System.Reflection;
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using System.Windows.Controls;
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using System.Windows.Media;
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using System.Windows.Media.Animation;
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using System.Windows.Shapes;
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using AntDesignWPF.Extensions;
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namespace AntDesignWPF.Appearance;
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/// <summary>
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/// 允许通过交换包含动态资源的资源字典来管理应用程序主题。
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/// </summary>
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/// <example>
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/// <code lang="csharp"> ThemeManager.ChangeAppTheme( ThemeMode.Light );</code> <code lang="csharp"> if
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/// (ThemeManager.GetAppTheme() == ThemeMode.Dark) { ThemeManager.ChangeAppTheme(
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/// ThemeMode.Light ); }</code> <code> ThemeManager.Changed += (theme, accent) => {
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/// Debug.WriteLine($"Application theme changed to {theme.ToString()}"); };</code>
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/// </example>
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public class ThemeManager
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{
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internal static string LibraryNamespace => Assembly.GetExecutingAssembly().GetName().Name;
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public static string ThemesDictionaryPath => $"pack://application:,,,/{LibraryNamespace};component/Themes/";
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private static ThemeMode _activeThemeMode = ThemeMode.Light;
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private static ThemePalette _activeThemePalette = ThemePalette.DaybreakBlue;
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public static event Action<ThemeMode>? ThemeModeChanged;
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public static event Action<ThemePalette>? ThemePaletteChanged;
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#region Animation
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private static Task AnimateBrushColorAsync(SolidColorBrush brush, Color toColor, int durationMs = 500)
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{
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if (brush.IsFrozen)
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return Task.CompletedTask; // 冻结的Brush无法动画，直接返回完成的Task
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var tcs = new TaskCompletionSource<bool>();
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var anim = new ColorAnimation
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{
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To = toColor,
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Duration = TimeSpan.FromMilliseconds(durationMs),
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EasingFunction = new CubicEase { EasingMode = EasingMode.EaseInOut },
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FillBehavior = FillBehavior.HoldEnd
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};
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// 在动画完成时标记任务完成
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anim.Completed += (s, e) => tcs.SetResult(true);
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brush.BeginAnimation(SolidColorBrush.ColorProperty, anim);
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return tcs.Task;
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}
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/// <summary>
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/// 动画过渡
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/// </summary>
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/// <param name="themeUri"></param>
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public void ChangeTheme(Uri themeUri)
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{
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// 1. 加载目标主题的资源字典，但先不合并
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ResourceDictionary newTheme = new ResourceDictionary { Source = themeUri };
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// 2. 遍历新主题中的画刷资源
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foreach (var key in newTheme.Keys)
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{
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// 只处理 SolidColorBrush
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if (newTheme[key] is SolidColorBrush newBrush)
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{
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// 3. 在当前的应用程序资源中找到同名的画刷
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var currentBrush = Application.Current.Resources[key] as SolidColorBrush;
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if (currentBrush != null)
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{
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// 4. 创建颜色动画
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var colorAnimation = new ColorAnimation
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{
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From = currentBrush.Color,
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To = newBrush.Color,
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Duration = new Duration(TimeSpan.FromMilliseconds(300)), // 动画时长
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EasingFunction = new QuarticEase { EasingMode = EasingMode.EaseInOut } // 缓动函数，使动画更自然
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};
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// 5. 对当前画刷的 Color 属性应用动画
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currentBrush.BeginAnimation(SolidColorBrush.ColorProperty, colorAnimation);
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}
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}
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}
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}
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#endregion
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/// <summary>
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/// 将资源应用于 <paramref name="frameworkElement"/>.
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/// </summary>
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public static void ApplyResourcesToElement(FrameworkElement frameworkElement)
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{
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if (frameworkElement.Resources.MergedDictionaries.Count <
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ThemeManager.Current.Resources.MergedDictionaries.Count)
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{
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foreach (var dictionary in ThemeManager.Current.Resources.MergedDictionaries)
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{
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frameworkElement.Resources.MergedDictionaries.Add(dictionary);
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}
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}
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}
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public static void SwitchThemePalette(ThemePalette themePalette)
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{
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if (themePalette == ThemePalette.DaybreakBlue)
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{
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return;
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}
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}
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/// <summary>
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/// 更改当前应用程序主题。
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/// </summary>
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/// <param name="themeMode">要设置的主题</param>
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/// <param name="backgroundEffect">是否应用自定义背景效果。</param>
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/// <param name="updateAccent">是否应更改颜色强调。</param>
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public static void SwitchThemeMode(ThemeMode themeMode)
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{
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if (themeMode == _activeThemeMode)
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{
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return;
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}
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ResourceDictionaryManager appDictionaries = new();
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var themeDictionaryName = themeMode switch
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{
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ThemeMode.Light => "Light",
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ThemeMode.Dark => "Dark",
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_ => throw new NotImplementedException(),
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};
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//ApplyThemeWithAnimation(applicationTheme);
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if (!appDictionaries.UpdateDictionary(
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"themes",
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new Uri($"{ThemesDictionaryPath}{themeDictionaryName}.xaml", UriKind.Absolute)))
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{
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return;
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}
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_activeThemeMode = themeMode;
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ThemeModeChanged?.Invoke(themeMode);
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}
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/// <summary>
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/// 获取当前设置的应用程序主题。
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/// </summary>
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/// <returns><see cref="ThemeMode.Unknow"/> if something goes wrong.</returns>
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public static ThemeMode GetAppTheme()
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{
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if (_activeThemeMode == ThemeMode.Light)
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{
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ResourceDictionaryManager appDictionaries = new();
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var themeDictionary = appDictionaries.LookupDictionary("themes");
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if (themeDictionary == null)
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{
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return ThemeMode.Light;
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}
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var themeUri = themeDictionary.Source.ToString();
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if (themeUri.Contains("light", StringComparison.OrdinalIgnoreCase))
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{
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_activeThemeMode = ThemeMode.Light;
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}
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if (themeUri.Contains("dark", StringComparison.OrdinalIgnoreCase))
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{
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_activeThemeMode = ThemeMode.Dark;
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}
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}
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return _activeThemeMode;
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}
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#region UiApplication
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private static ThemeManager? _themeManagerInstance;
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private readonly Application? application;
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private Window? mainWindow;
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private ResourceDictionary? resources;
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/// <summary>
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/// 初始化 <see cref="ThemeManager"/> 实例.
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/// </summary>
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private ThemeManager(Application? application)
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{
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if (application is null)
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{
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return;
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}
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if (!ApplicationHasResources(application))
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{
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return;
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}
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this.application = application;
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System.Diagnostics.Debug
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.WriteLine($"INFO | {typeof(ThemeManager)} application is {this.application}", "AntDesignWPF");
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}
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private static bool ApplicationHasResources(Application? application)
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{
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return application!
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.Resources.MergedDictionaries
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.Where(e => e.Source is not null)
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.Any(
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e => e.Source
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.ToString()
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.Contains(ThemeManager.LibraryNamespace, StringComparison.OrdinalIgnoreCase));
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}
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/// <summary>
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/// 将应用程序的 变为 shutdown 模式。
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/// </summary>
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public void Shutdown() { application?.Shutdown(); }
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/// <summary>
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/// 获取或设置应用程序的资源。
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/// </summary>
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public object TryFindResource(object resourceKey) { return Resources[resourceKey]; }
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/// <summary>
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/// 获取当前UI应用程序。
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/// </summary>
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public static ThemeManager Current
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{
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get
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{
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_themeManagerInstance ??= new ThemeManager(Application.Current);
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return _themeManagerInstance;
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}
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}
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/// <summary>
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/// 获取或设置应用程序的主窗口。
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/// </summary>
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public Window? MainWindow
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{
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get => application?.MainWindow ?? mainWindow;
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set
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{
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if (application != null)
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{
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application.MainWindow = value;
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}
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mainWindow = value;
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}
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}
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/// <summary>
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/// 获取或设置应用程序的资源。
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/// </summary>
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public ResourceDictionary Resources
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{
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get
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{
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if (resources is null)
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{
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resources = [];
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try
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{
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var themesDictionary = new ThemesDictionary();
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var controlsDictionary = new ControlsDictionary();
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resources.MergedDictionaries.Add(themesDictionary);
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resources.MergedDictionaries.Add(controlsDictionary);
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}
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catch
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{
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}
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}
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return application?.Resources ?? resources;
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}
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set
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{
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if (application is not null)
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{
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application.Resources = value;
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}
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resources = value;
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}
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}
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#endregion
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} |