具备界面基础功能

SHH.CameraDashboard/Converters/BoolToMaxScaleConverter.cs

@@ -0,0 +1,29 @@
+using System.Globalization;
+using System.Windows.Data;
+
+namespace SHH.CameraDashboard;
+
+/// <summary>
+/// 布尔值转最大缩放比例转换器
+/// </summary>
+public class BoolToMaxScaleConverter : IValueConverter
+{
+    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        // 如果 AllowExpand (value) 为 true
+        if (value is bool allow && allow)
+        {
+            // 允许放大：最大支持 200% (即放大 2 倍)
+            // 你也可以改成 300 或根据业务需求调整
+            return 200.0;
+        }
+
+        // 不允许放大：最大限制在 100% (原图大小)
+        return 100.0;
+    }
+
+    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        throw new NotImplementedException();
+    }
+}

SHH.CameraDashboard/Converters/InverseNullToVisibilityConverter.cs

@@ -0,0 +1,19 @@
+using System.Globalization;
+using System.Windows;
+using System.Windows.Data;
+
+namespace SHH.CameraDashboard;
+
+// 2. 对象为空时显示，不为空时隐藏 (用于显示提示文字)
+public class InverseNullToVisibilityConverter : IValueConverter
+{
+    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        return value == null ? Visibility.Visible : Visibility.Collapsed;
+    }
+
+    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        throw new NotImplementedException();
+    }
+}

SHH.CameraDashboard/Converters/NullToVisibilityConverter.cs

@@ -0,0 +1,19 @@
+using System.Globalization;
+using System.Windows;
+using System.Windows.Data;
+
+namespace SHH.CameraDashboard;
+
+// 1. 对象为空时隐藏，不为空时显示
+public class NullToVisibilityConverter : IValueConverter
+{
+    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        return value == null ? Visibility.Collapsed : Visibility.Visible;
+    }
+
+    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        throw new NotImplementedException();
+    }
+}

SHH.CameraDashboard/Converters/SubscriptionTypeConverter.cs

@@ -0,0 +1,34 @@
+using System.Globalization;
+using System.Windows.Data;
+
+namespace SHH.CameraDashboard
+{
+    /// <summary>
+    /// 将订阅类型的 int 值 (0,1,2...) 转换为中文描述
+    /// </summary>
+    public class SubscriptionTypeConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (value is int typeId)
+            {
+                return typeId switch
+                {
+                    0 => "🖥️ 本地窗口预览",
+                    1 => "📼 本地录像存储",
+                    2 => "🪟 句柄绑定显示",
+                    3 => "📡 网络转发传输",
+                    4 => "🌐 网页端推流",
+                    _ => $"未知类型 ({typeId})"
+                };
+            }
+            // 如果后端传回的是字符串枚举 (兼容性)，也可以尝试转换
+            return value?.ToString() ?? "未知";
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}