92 lines
2.8 KiB
C#
92 lines
2.8 KiB
C#
using System.Windows;
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namespace SHH.CameraDashboard
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{
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public static class ThemeManager
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{
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// 使用字典：Key=主题名, Value=路径
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private static readonly Dictionary<string, string> _themeMap = new Dictionary<string, string>
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{
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{ "Dark", "/Style/Themes/Colors.Dark.xaml" },
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{ "Light", "/Style/Themes/Colors.Light.xaml" },
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// { "Blue", "/Style/Themes/Colors.Blue.xaml" }
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};
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// 当前主题名称
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public static string CurrentThemeName { get; private set; } = "Dark";
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/// <summary>
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/// 指定切换到某个主题
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/// </summary>
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/// <param name="themeName">主题名称 (Dark, Light...)</param>
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public static void SetTheme(string themeName)
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{
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if (!_themeMap.ContainsKey(themeName))
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{
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System.Diagnostics.Debug.WriteLine($"未找到主题: {themeName}");
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return;
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}
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ApplyTheme(_themeMap[themeName]);
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CurrentThemeName = themeName;
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}
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/// <summary>
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/// 循环切换下一个主题 (保留旧功能)
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/// </summary>
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public static void SwitchToNextTheme()
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{
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// 获取所有 Key 的列表
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var keys = _themeMap.Keys.ToList();
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// 找到当前 Key 的索引
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int index = keys.IndexOf(CurrentThemeName);
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// 计算下一个索引
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index++;
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if (index >= keys.Count) index = 0;
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// 切换
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SetTheme(keys[index]);
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}
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/// <summary>
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/// 私有方法：执行具体的资源替换
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/// </summary>
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private static void ApplyTheme(string themePath)
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{
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var appResources = Application.Current.Resources;
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ResourceDictionary oldDict = null;
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// 查找旧的皮肤字典
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foreach (var dict in appResources.MergedDictionaries)
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{
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if (dict.Source != null && dict.Source.OriginalString.Contains("/Themes/Colors."))
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{
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oldDict = dict;
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break;
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}
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}
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// 移除旧的
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if (oldDict != null)
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{
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appResources.MergedDictionaries.Remove(oldDict);
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}
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// 加载新的
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try
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{
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var newDict = new ResourceDictionary
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{
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Source = new Uri(themePath, UriKind.Relative)
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};
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appResources.MergedDictionaries.Add(newDict);
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}
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catch (Exception ex)
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{
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System.Diagnostics.Debug.WriteLine($"加载主题文件失败: {ex.Message}");
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}
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}
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}
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} |