NEU

FastColoredTextBox/UnfocusablePanel.cs

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+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+using System.Text;
+using System.Windows.Forms;
+
+namespace FastColoredTextBoxNS
+{
+    [System.ComponentModel.ToolboxItem(false)]
+    public class UnfocusablePanel : UserControl
+    {
+        public Color BackColor2 { get; set; }
+        public Color BorderColor { get; set; }
+        public new string Text { get; set; }
+        public StringAlignment TextAlignment { get; set; }
+
+        public UnfocusablePanel()
+        {
+            SetStyle(ControlStyles.Selectable, false);
+            SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer | ControlStyles.UserPaint, true);
+        }
+
+        protected override void OnPaint(PaintEventArgs e)
+        {
+            using (var brush = new LinearGradientBrush(ClientRectangle, BackColor2, BackColor, 90))
+                e.Graphics.FillRectangle(brush, 0, 0, ClientSize.Width - 1, ClientSize.Height - 1);
+            using(var pen = new Pen(BorderColor))
+                e.Graphics.DrawRectangle(pen, 0, 0, ClientSize.Width - 1, ClientSize.Height - 1);
+
+            if (!string.IsNullOrEmpty(Text))
+            {
+                StringFormat sf = new StringFormat();
+                sf.Alignment = TextAlignment;
+                sf.LineAlignment = StringAlignment.Center;
+                using(var brush = new SolidBrush(ForeColor))
+                    e.Graphics.DrawString(Text, Font, brush, new RectangleF(1, 1, ClientSize.Width - 2, ClientSize.Height - 2), sf);
+            }
+        }
+    }
+}