1 files changed, 75 insertions, 0 deletions
diff --git a/V3/Widgets/FormMenu.cs b/V3/Widgets/FormMenu.cs
new file mode 100644
index 0000000..746f8f4
--- /dev/null
+++ b/V3/Widgets/FormMenu.cs
@@ -0,0 +1,75 @@
+using Microsoft.Xna.Framework;
+using System;
+using System.Linq;
+
+namespace V3.Widgets
+{
+    /// <summary>
+    /// A menu that arranges widgets in two columns.  All widgets in on column
+    /// are made the same size (the maximum widget size).
+    /// </summary>
+    // ReSharper disable once ClassNeverInstantiated.Global
+    public sealed class FormMenu : AbstractMenu
+    {
+        private const float PaddingInnerX = 10;
+        private const float PaddingOuterX = 10;
+        private const float PaddingInnerY = 10;
+        private const float PaddingOuterY = 10;
+
+        public FormMenu(GraphicsDeviceManager graphicsDeviceManager) : base(graphicsDeviceManager)
+        {
+        }
+
+        protected override Vector2 GetTotalSize()
+        {
+            var size = new Vector2(2 * PaddingOuterX, 2 * PaddingOuterY);
+            var maxXLeft = 0f;
+            var maxXRight = 0f;
+            for (var i = 0; i < Widgets.Count; i += 2)
+            {
+                maxXLeft = Math.Max(maxXLeft, Widgets[i].Size.X);
+                if (i + 1 < Widgets.Count)
+                {
+                    maxXRight = Math.Max(maxXRight, Widgets[i + 1].Size.X);
+                    size.Y += Math.Max(Widgets[i].Size.Y, Widgets[i + 1].Size.Y);
+                }
+                else
+                {
+                    size.Y += Widgets[i].Size.Y;
+                }
+                if (i + 2 < Widgets.Count)
+                    size.Y += PaddingInnerY;
+            }
+            size.X += maxXLeft + maxXRight + PaddingInnerX;
+            return size;
+        }
+
+        protected override void UpdateWidgetRelativePositions()
+        {
+            var y = PaddingOuterY;
+            for (var i = 0; i < Widgets.Count; i += 2)
+            {
+                var x = PaddingOuterX;
+                Widgets[i].Position = new Vector2(x, y);
+                if (i + 1 < Widgets.Count)
+                {
+                    x += Widgets[i].Size.X;
+                    x += PaddingInnerX;
+                    Widgets[i + 1].Position = new Vector2(x, y);
+                    y += Math.Max(Widgets[i].Size.Y, Widgets[i + 1].Size.Y);
+                }
+                else
+                {
+                    y += Widgets[i].Size.Y;
+                }
+                y += PaddingInnerY;
+            }
+        }
+
+        protected override void UpdateWidgetSizes()
+        {
+            MakeWidgetsSameSize(Widgets.Where((w, i) => i % 2 == 0));
+            MakeWidgetsSameSize(Widgets.Where((w, i) => i % 2 == 1));
+        }
+    }
+}