1 files changed, 104 insertions, 0 deletions
diff --git a/Plugins/MonoGame.Extended/source/MonoGame.Extended.Gui/Controls/DockPanel.cs b/Plugins/MonoGame.Extended/source/MonoGame.Extended.Gui/Controls/DockPanel.cs
new file mode 100644
index 0000000..7dfe1e6
--- /dev/null
+++ b/Plugins/MonoGame.Extended/source/MonoGame.Extended.Gui/Controls/DockPanel.cs
@@ -0,0 +1,104 @@
+using System;
+using Microsoft.Xna.Framework;
+
+namespace MonoGame.Extended.Gui.Controls
+{
+    public enum Dock
+    {
+        Left, Right, Top, Bottom
+    }
+
+    public class DockPanel : LayoutControl
+    {
+        public override Size GetContentSize(IGuiContext context)
+        {
+            var size = new Size();
+
+            for (var i = 0; i < Items.Count; i++)
+            {
+                var control = Items[i];
+                var actualSize = control.CalculateActualSize(context);
+
+                if (LastChildFill && i == Items.Count - 1)
+                {
+                    size.Width += actualSize.Width;
+                    size.Height += actualSize.Height;
+                }
+                else
+                {
+                    var dock = control.GetAttachedProperty(DockProperty) as Dock? ?? Dock.Left;
+
+                    switch (dock)
+                    {
+                        case Dock.Left:
+                        case Dock.Right:
+                            size.Width += actualSize.Width;
+                            break;
+                        case Dock.Top:
+                        case Dock.Bottom:
+                            size.Height += actualSize.Height;
+                            break;
+                        default:
+                            throw new ArgumentOutOfRangeException();
+                    }
+                }
+            }
+
+            return size;
+        }
+
+        protected override void Layout(IGuiContext context, Rectangle rectangle)
+        {
+            for (var i = 0; i < Items.Count; i++)
+            {
+                var control = Items[i];
+
+                if (LastChildFill && i == Items.Count - 1)
+                {
+                    PlaceControl(context, control, rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height);
+                }
+                else
+                {
+                    var actualSize = control.CalculateActualSize(context);
+                    var dock = control.GetAttachedProperty(DockProperty) as Dock? ?? Dock.Left;
+
+                    switch (dock)
+                    {
+                        case Dock.Left:
+                            PlaceControl(context, control, rectangle.Left, rectangle.Top, actualSize.Width, rectangle.Height);
+                            rectangle.X += actualSize.Width;
+                            rectangle.Width -= actualSize.Width;
+                            break;
+                        case Dock.Right:
+                            PlaceControl(context, control, rectangle.Right - actualSize.Width, rectangle.Top, actualSize.Width, rectangle.Height);
+                            rectangle.Width -= actualSize.Width;
+                            break;
+                        case Dock.Top:
+                            PlaceControl(context, control, rectangle.Left, rectangle.Top, rectangle.Width, actualSize.Height);
+                            rectangle.Y += actualSize.Height;
+                            rectangle.Height -= actualSize.Height;
+                            break;
+                        case Dock.Bottom:
+                            PlaceControl(context, control, rectangle.Left, rectangle.Bottom - actualSize.Height, rectangle.Width, actualSize.Height);
+                            rectangle.Height -= actualSize.Height;
+                            break;
+                        default:
+                            throw new ArgumentOutOfRangeException();
+                    }
+                }
+            }
+        }
+
+        public const string DockProperty = "Dock";
+        
+        public override Type GetAttachedPropertyType(string propertyName)
+        {
+            if (string.Equals(DockProperty, propertyName, StringComparison.OrdinalIgnoreCase))
+                return typeof(Dock);
+
+            return base.GetAttachedPropertyType(propertyName);
+        }
+
+        public bool LastChildFill { get; set; } = true;
+    }
+}
+\ No newline at end of file