From 282c1ae17cf12b335d1314dc115b6ef89fc4e76c Mon Sep 17 00:00:00 2001
From: Sunny <yhuse@163.com>
Date: Thu, 13 Feb 2025 10:45:17 +0800
Subject: [PATCH] =?UTF-8?q?*=20UITabControl:=20=E5=A2=9E=E5=8A=A0=E6=A0=87?=
 =?UTF-8?q?=E7=AD=BE=E9=A1=B5=E5=88=86=E5=89=B2=E7=BA=BF=E5=B1=9E=E6=80=A7?=
 =?UTF-8?q?ShowTabDivider=EF=BC=8C#IBLERL?=
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Content-Type: text/plain; charset=UTF-8
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---
 SunnyUI/Controls/UITabControl.cs | 38 +++++++++++++++++++++++++++-----
 1 file changed, 32 insertions(+), 6 deletions(-)

diff --git a/SunnyUI/Controls/UITabControl.cs b/SunnyUI/Controls/UITabControl.cs
index 12fb5d94..d92aeb5c 100644
--- a/SunnyUI/Controls/UITabControl.cs
+++ b/SunnyUI/Controls/UITabControl.cs
@@ -37,6 +37,7 @@
  * 2024-12-12: V3.8.0 修复标签文字越界显示 #IB8571
  * 2024-12-12: V3.8.0 增加未选页签颜色 #IB7U69
  * 2025-02-07: V3.8.1 修复切换主题色时，TabPage未设置背景色，#IBKDR7
+ * 2025-02-13: V3.8.1 增加标签页分割线属性ShowTabDivider，#IBLERL
 ******************************************************************************/
 
 using System;
@@ -104,6 +105,20 @@ namespace Sunny.UI
         [Browsable(false), DefaultValue(typeof(Rectangle), "0, 0, 0, 0")]
         public Rectangle ZoomScaleRect { get; set; }
 
+        private bool _showTabDivider = true;
+
+        [Description("显示标签页分割线"), Category("SunnyUI")]
+        [DefaultValue(true)]
+        public bool ShowTabDivider
+        {
+            get => _showTabDivider;
+            set
+            {
+                _showTabDivider = value;
+                Invalidate();
+            }
+        }
+
         /// <summary>
         /// 设置控件缩放比例
         /// </summary>
@@ -661,6 +676,16 @@ namespace Sunny.UI
                 return;
             }
 
+            int tabIdx = -1;
+            for (int i = 0; i < TabCount; i++)
+            {
+                if (SelectedTab == TabPages[i])
+                {
+                    tabIdx = i;
+                    break;
+                }
+            }
+
             for (int index = 0; index <= TabCount - 1; index++)
             {
                 Rectangle TabRect = new Rectangle(GetTabRect(index).Location.X - 2, GetTabRect(index).Location.Y - 2, ItemSize.Width, ItemSize.Height);
@@ -690,11 +715,6 @@ namespace Sunny.UI
                 if (TabSelectedHighColorSize > 0 && index == SelectedIndex)
                     e.Graphics.FillRectangle(TabSelectedHighColor, TabRect.Left, TabRect.Height - TabSelectedHighColorSize, TabRect.Width, TabSelectedHighColorSize);
 
-                if (index <= TabCount - 2)
-                {
-                    e.Graphics.DrawLine(tabUnSelectedForeColor.Alpha(100), TabRect.Right - 1, TabRect.Center().Y - sf.Height / 2.0f, TabRect.Right - 1, sf.Height + sf.Height / 2.0f);
-                }
-
                 //e.Graphics.DrawString(TabPages[index].Text, Font, index == SelectedIndex ? tabSelectedForeColor : TabUnSelectedForeColor,
                 //    new Rectangle(TabRect.Left + textLeft, TabRect.Top, TabRect.Width, TabRect.Height), ContentAlignment.MiddleLeft);
 
@@ -743,6 +763,12 @@ namespace Sunny.UI
                     e.Graphics.FillEllipse(TipsColor, TabRect.Left + x - 1, y, sfMax, sfMax);
                     e.Graphics.DrawString(TipsText, TempFont, TipsForeColor, new Rectangle(TabRect.Left + x, y, sfMax, sfMax), ContentAlignment.MiddleCenter);
                 }
+
+                if (index <= TabCount - 2 && ShowTabDivider)
+                {
+                    if (index != tabIdx)
+                        e.Graphics.DrawLine(tabUnSelectedForeColor.Alpha(100), TabRect.Right - 1, TabRect.Center().Y - TabRect.Height / 4.0f, TabRect.Right - 1, TabRect.Center().Y + TabRect.Height / 4.0f);
+                }
             }
         }
 
@@ -898,7 +924,7 @@ namespace Sunny.UI
             base.OnSelectedIndexChanged(e);
             CloseRects.Clear();
             Init();
-            if (ShowActiveCloseButton && !ShowCloseButton)
+            if ((ShowActiveCloseButton && !ShowCloseButton) || ShowTabDivider)
             {
                 timer.Start();
             }