功能更新

Melskin/Converters/Internal/IntensityToEmbossMarginLeftTopConverter.cs

@@ -0,0 +1,27 @@
+using System.Globalization;
+using System.Windows.Data;
+
+namespace Melskin.Converters.Internal;
+
+/// <summary>
+/// 将浮点数类型的强度值转换为左上边距的 Thickness 对象。该转换器适用于需要根据浮点数值动态调整 UI 元素边距的场景。
+/// 当输入的强度值为 1 时，生成的边距最小，随着强度值减小，边距逐渐增大，从而影响 UI 元素显示效果，如阴影或光照效果的范围。
+/// </summary>
+[ValueConversion(typeof(double), typeof(Thickness))]
+internal class IntensityToEmbossMarginLeftTopConverter : IValueConverter
+{
+    public static readonly IntensityToEmbossMarginLeftTopConverter Instance = new();
+        
+    public object Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
+    {
+        var intensity = (double)(value ?? 0.5);
+        //数值为1的时候边距最小，露出的着色边框越大
+        var marginValue = 2 * intensity;
+        return new Thickness(-marginValue, -marginValue, marginValue, marginValue);
+    }
+
+    public object ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
+    {
+        return Binding.DoNothing;
+    }
+}