* UITextBox：增加Click事件，Cursor可设置

* UIRichTextBox：增加ReadOnly属性

SunnyUI.Demo/Controls/FTextBox.Designer.cs

@@ -92,6 +92,7 @@
             this.uiTextBox1.Size = new System.Drawing.Size(221, 29);
             this.uiTextBox1.TabIndex = 3;
             this.uiTextBox1.Watermark = "水印文字";
+            this.uiTextBox1.Click += new System.EventHandler(this.uiTextBox1_Click);
             // 
             // uiLabel1
             // 

SunnyUI.Demo/Controls/FTextBox.cs

@@ -6,5 +6,10 @@
         {
             InitializeComponent();
         }
+
+        private void uiTextBox1_Click(object sender, System.EventArgs e)
+        {
+
+        }
     }
 }

SunnyUI/Controls/UIRichTextBox.cs

@@ -61,6 +61,13 @@ namespace Sunny.UI
         //            }
         //        }
 
+        [DefaultValue(false)]
+        public bool ReadOnly
+        {
+            get => edit.ReadOnly;
+            set => edit.ReadOnly = value;
+        }
+
         private void Edit_SelectionChanged(object sender, EventArgs e)
         {
             SelectionChanged?.Invoke(sender, e);

SunnyUI/Controls/UITextBox.cs

@@ -55,6 +55,8 @@ namespace Sunny.UI
             edit.KeyUp += EditOnKeyUp;
             edit.KeyPress += EditOnKeyPress;
             edit.MouseEnter += Edit_MouseEnter;
+            edit.Click += Edit_Click;
+            edit.DoubleClick += Edit_DoubleClick;
 
             edit.Invalidate();
             Controls.Add(edit);
@@ -70,16 +72,40 @@ namespace Sunny.UI
             bar.MouseEnter += Bar_MouseEnter;
 
             SizeChange();
+
+            editCursor = Cursor;
         }
 
+        private void Edit_DoubleClick(object sender, EventArgs e)
+        {
+            DoubleClick?.Invoke(this,e);
+        }
+
+        public new event EventHandler DoubleClick;
+        public new event EventHandler Click;
+
+        private void Edit_Click(object sender, EventArgs e)
+        {
+            Click?.Invoke(this,e);
+        }
+
+        protected override void OnCursorChanged(EventArgs e)
+        {
+            base.OnCursorChanged(e);
+            edit.Cursor = Cursor;
+        }
+
+        private Cursor editCursor;
+
         private void Bar_MouseEnter(object sender, EventArgs e)
         {
+            editCursor = Cursor;
             Cursor = Cursors.Default;
         }
 
         private void Edit_MouseEnter(object sender, EventArgs e)
         {
-            Cursor = Cursors.IBeam;
+            Cursor = editCursor;
         }
 
         private void OnMouseWheel(object sender, MouseEventArgs e)