重构

SunnyUI/Charts/UIChart.cs

@@ -73,7 +73,7 @@ namespace Sunny.UI
             tip.Visible = false;
         }
 
-        protected readonly UITransparentPanel tip = new UITransparentPanel();
+        internal readonly UITransparentPanel tip = new UITransparentPanel();
         private UIChartStyleType chartStyleType = UIChartStyleType.Plain;
 
         [DefaultValue(UIChartStyleType.Plain)]

SunnyUI/Charts/UILineChart.cs

@@ -983,7 +983,7 @@ namespace Sunny.UI
                             using Graphics g = this.CreateGraphics();
                             using var TempFont = Font.DPIScaleFont(UIStyles.DefaultSubFontSize);
                             Size sf = TextRenderer.MeasureText(sb.ToString(), TempFont);
-                            tip.Size = new Size(sf.Width + 4, sf.Height + 4);
+                            tip.Size = new Size(sf.Width + 4, sf.Height + 10);
 
                             int x = e.Location.X + 15;
                             int y = e.Location.Y + 20;

SunnyUI/Controls/UITransparentPanel.cs

@@ -6,28 +6,14 @@ using System.Windows.Forms;
 namespace Sunny.UI
 {
     [ToolboxItem(false)]
-    public class UITransparentPanel : UIPanel
+    internal class UITransparentPanel : UIPanel
     {
-        private int _opacity = 150;
-
         public UITransparentPanel()
         {
+            Opacity = 200;
             SetStyleFlags(true, false);
         }
 
-        [Bindable(true), Category("Custom"), DefaultValue(150), Description("背景的透明度. 有效值0-255")]
-        public int Opacity
-        {
-            get { return _opacity; }
-            set
-            {
-                if (value > 255) value = 255;
-                else if (value < 0) value = 0;
-                _opacity = value;
-                Invalidate();
-            }
-        }
-
         protected override CreateParams CreateParams
         {
             get