DotNet 4.8.1 build of DotNetBar

PROMS/DotNetBar Source Code/DevComponents.DotNetBar.Layout/LayoutSpacerItem.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+using System.Windows.Forms;
+
+namespace DevComponents.DotNetBar.Layout
+{
+    /// <summary>
+    /// Represents the item used as empty spacer element.
+    /// </summary>
+    public class LayoutSpacerItem : LayoutItemBase
+    {
+        #region Constructor
+
+        #endregion
+
+        #region Implementation
+        protected override void OnPaintBackground(PaintContext context)
+        {
+            base.OnPaintBackground(context);
+
+            if (this.DesignMode && !this.IsSelected && this.Bounds.Width > 0 && this.Bounds.Height > 0)
+            {
+                using (Pen borderPen = this.DesignTimeBorderPen)
+                {
+                    Rectangle clientRectangle = this.Bounds;
+                    clientRectangle.Width--;
+                    clientRectangle.Height--;
+                    context.Graphics.DrawRectangle(borderPen, clientRectangle);
+                }
+            }
+        }
+        protected Pen DesignTimeBorderPen
+        {
+            get
+            {
+                Color color = (SystemColors.Control.GetBrightness() < 0.5) ? ControlPaint.Light(SystemColors.Control) : ControlPaint.Dark(SystemColors.Control);
+                LayoutControl lc = GetLayoutControl();
+                if (lc != null)
+                    color = (lc.BackColor.GetBrightness() < 0.5) ? ControlPaint.Light(lc.BackColor) : ControlPaint.Dark(lc.BackColor);
+                Pen pen = new Pen(color);
+                pen.DashStyle = DashStyle.Dash;
+                return pen;
+            }
+        }
+        #endregion
+    }
+}