New built-in plugin PEViewer

QuickLook.Plugin/QuickLook.Plugin.PEViewer/FluentBorder.cs

@@ -0,0 +1,35 @@
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Media;
+
+namespace QuickLook.Plugin.PEViewer;
+
+public class FluentBorder : Decorator
+{
+    public static readonly DependencyProperty CornerRadiusProperty =
+        DependencyProperty.Register("CornerRadius", typeof(CornerRadius), typeof(FluentBorder), new FrameworkPropertyMetadata(new CornerRadius()));
+
+    public CornerRadius CornerRadius
+    {
+        get => (CornerRadius)GetValue(CornerRadiusProperty);
+        set => SetValue(CornerRadiusProperty, value);
+    }
+
+    public static readonly DependencyProperty BackgroundProperty =
+        DependencyProperty.Register("Background", typeof(Brush), typeof(FluentBorder), new FrameworkPropertyMetadata(Brushes.Transparent));
+
+    public Brush Background
+    {
+        get => (Brush)GetValue(BackgroundProperty);
+        set => SetValue(BackgroundProperty, value);
+    }
+
+    protected override void OnRender(DrawingContext drawingContext)
+    {
+        if (Child != null)
+        {
+            Rect rect = new(new Point(0, 0), RenderSize);
+            drawingContext.DrawRoundedRectangle(Background, new Pen(Brushes.Transparent, 1), rect, CornerRadius.TopLeft, CornerRadius.TopRight);
+        }
+    }
+}