port from perforce

intromat/NodeNetwork/Views/Controls/FillPanel.cs

@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+
+namespace NodeNetwork.Views.Controls
+{
+    /// <summary>
+    /// Simple panel that stretches its children to fill the panel.
+    /// </summary>
+    public class FillPanel : Panel
+    {
+        protected override Size MeasureOverride(Size availableSize)
+        {
+            Size maxSize = new Size(0, 0);
+
+            foreach (UIElement e in InternalChildren)
+            {
+                e.Measure(availableSize);
+                maxSize = new Size(
+                    Math.Max(maxSize.Width, e.DesiredSize.Width), 
+                    Math.Max(maxSize.Height, e.DesiredSize.Height)
+                );
+            }
+
+            return maxSize;
+        }
+
+        protected override Size ArrangeOverride(Size finalSize)
+        {
+            Rect size = new Rect(new Point(), finalSize);
+            foreach (UIElement e in InternalChildren)
+            {
+                e.Arrange(size);
+            }
+
+            return finalSize;
+        }
+    }
+}