initial commit

Avalonia.PropertyGrid/Converters/ColorToBrushConverter.cs

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+using System;
+using System.Globalization;
+using Avalonia.Data.Converters;
+using Avalonia.Media;
+
+namespace Avalonia.PropertyGrid.Controls;
+
+/// <summary>
+/// Converts an Avalonia.Media.Color to a SolidColorBrush
+/// </summary>
+public class ColorToBrushConverter : IValueConverter
+{
+    public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
+    {
+        if (value is Color color)
+        {
+            return new SolidColorBrush(color);
+        }
+
+        // Return transparent brush if not a color
+        return new SolidColorBrush(Colors.Transparent);
+    }
+
+    public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
+    {
+        if (value is SolidColorBrush brush && brush.Color != null)
+        {
+            return brush.Color;
+        }
+
+        return Colors.Transparent;
+    }
+}