From 8a9e763fcf59c0908615e8856178963b11691b25 Mon Sep 17 00:00:00 2001
From: Robin <robinperris@gmail.com>
Date: Tue, 22 Dec 2015 22:24:39 +0000
Subject: [PATCH] Tabs now invalidated when dock text changed.

---
 DarkUI/Docking/DarkDockContent.cs | 9 ++++++++-
 DarkUI/Docking/DarkDockGroup.cs   | 9 +++++++++
 Example/Forms/MainForm.cs         | 2 +-
 3 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/DarkUI/Docking/DarkDockContent.cs b/DarkUI/Docking/DarkDockContent.cs
index e769bc1..23bb3e2 100644
--- a/DarkUI/Docking/DarkDockContent.cs
+++ b/DarkUI/Docking/DarkDockContent.cs
@@ -8,6 +8,12 @@ namespace DarkUI.Docking
     [ToolboxItem(false)]
     public class DarkDockContent : UserControl
     {
+        #region Event Handler Region
+
+        public event EventHandler DockTextChanged;
+
+        #endregion
+
         #region Field Region
 
         private string _dockText;
@@ -28,7 +34,8 @@ namespace DarkUI.Docking
 
                 _dockText = value;
 
-                // todo: trigger tabs to re-calculate in parent group
+                if (DockTextChanged != null)
+                    DockTextChanged(this, null);
 
                 Invalidate();
             }
diff --git a/DarkUI/Docking/DarkDockGroup.cs b/DarkUI/Docking/DarkDockGroup.cs
index 0a15df3..74665b6 100644
--- a/DarkUI/Docking/DarkDockGroup.cs
+++ b/DarkUI/Docking/DarkDockGroup.cs
@@ -68,6 +68,8 @@ namespace DarkUI.Docking
             _contents.Add(dockContent);
             Controls.Add(dockContent);
 
+            dockContent.DockTextChanged += DockContent_DockTextChanged;
+
             _tabs.Add(dockContent, new DarkDockTab(dockContent));
 
             if (VisibleContent == null)
@@ -96,6 +98,8 @@ namespace DarkUI.Docking
             _contents.Remove(dockContent);
             Controls.Remove(dockContent);
 
+            dockContent.DockTextChanged -= DockContent_DockTextChanged;
+
             if (_tabs.ContainsKey(dockContent))
                 _tabs.Remove(dockContent);
 
@@ -514,6 +518,11 @@ namespace DarkUI.Docking
             Invalidate();
         }
 
+        private void DockContent_DockTextChanged(object sender, EventArgs e)
+        {
+            Invalidate();
+        }
+
         #endregion
 
         #region Render Region
diff --git a/Example/Forms/MainForm.cs b/Example/Forms/MainForm.cs
index 64baf7d..a74d75a 100644
--- a/Example/Forms/MainForm.cs
+++ b/Example/Forms/MainForm.cs
@@ -213,7 +213,7 @@ namespace Example
                     DockPanel.AddContent(content);
             }
         }
-
+         
         private DarkDockContent GetContentBySerializationKey(string key)
         {
             foreach (var window in _toolWindows)